Hydromechanic jar

FIELD: drilling equipment, particularly to prevent drilling tool sticking in well.

SUBSTANCE: hydromechanic jar comprises hollow body with inner and outer axial anvils and hollow rod with inner striker installed in the body and adapted to perform axial movement. The inner striker is prevented from rotation with respect to the body. Upper sub with outer striker, piston, thrust with hollow stem and separating piston slidably installed on the hollow stem, as well as movable and fixed connector sealants are arranged on the hollow rod. Lower part of the hollow body is made as annular cylinder with two working borings having different diameters and adapted for periodical body aligning with piston. Lower and upper hollow body parts are filled with liquid lubricant. Unit, which excites circular and radial vibration, is fixedly connected to the hollow body and made as multilobe gerotor mechanism having inner helical engagement means. Unit includes stator fixedly fastened to body, hollow rotor with through axial channel arranged inside the stator and performing off-center rotation inside it, axial support for hollow rotor, free fall ball or plug adapted to close axial rotor channel, as well as connection and lower subs. Radial strikers adapted to cooperate with annular anvils are formed on hollow rotor ends.

EFFECT: increased reliability and service life.

3 cl, 10 dwg

 

Yass relates to hydromechanical drilling technique can be incorporated into the drill string and is used to eliminate sticking of the tool in the borehole while drilling oil and gas wells.

Known hydraulic Iasi, containing a hollow body with inner and outer anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal striker mounted on the hollow rod top sub with outer brisk, piston, and in the hollow body is made of two working bore of different diameters (see, for example, A.S. No. 1364692 from 07.01.88. Bull. No. 1. CL. E 21 In 31/113).

A disadvantage of the known hydraulic Yassa is that the channel for the flow of washing fluid blocked by a transverse partition with holes, which prevents the pass of the measuring instruments to the slaughter, and thus complicates the control precision of directional and horizontal wells along the calculated trajectories.

Another disadvantage of the known hydraulic Yassa is that the piston operates in the environment of drilling fluid containing fine abrasive particles. As a result of friction between piston rings and cylinder walls in the abrasive environment parts wear out quickly and prematurely fail.

Also a disadvantage of the known Hydra is symbolic Yassa, in the closed cavity of the cylinder can accumulate sludge (fine abrasive particles drilling cuttings contained in the drilling fluid), which, cementeries, will interfere with the operation of Yassa.

All this hinders the use of the known hydraulic Yassa and makes it impossible for its wide application.

Known hydromechanical Iasi, containing a hollow body with an inner anvil mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal brisk and mounted on the hollow piston rod separator, and the stop node (see, for example, patent RF №2194146, M7E 21 In 31/107, 31/113 from 10.12.2002,).

A disadvantage of the known hydromechanical Yassa is that it can be used only for emergency work after the discovery of sticking the tool in the well and cannot be included in a drill string for direct participation in the process of drilling wells and guaranteed release of the tool from sticking when performing tripping due to the fact that the Central flow passage is blocked and the access of measuring instruments on the face of the impossible.

Another disadvantage of the known hydromechanical Yassa is that it has a complex adjustable shut-off site, to the that may be the cause of the failure.

Limited use and lack of reliability does not allow the use of known hydromechanical Iasi widely.

Known Iasi (hydromechanical), containing a hollow body with inner and outer anvils mounted therein for axial movement without mutual rotation of the hollow piston rod mounted on the hollow shaft internal brisk and performed outside, and seal movable and immovable joints (see, for example, A.S. No. 1601336, E 21 In 31/107, 31/113 from 23.10.90, bull. No. 39).

In known hydromechanical the Yassa partially eliminated the disadvantages of the above-mentioned hydromechanical Assam. So, in the famous Yassa Central flow passage free for the passage of instrumentation downhole during drilling. This allows the use of known Yass in the layout of the bottom of the drill string during drilling and to reduce the time and cost at round-trip operations.

The disadvantage of Yassa is that its friction components operate in an environment of drilling fluid, which in most cases contains fine abrasive particles. When this inevitable catastrophic wear leads to increased leakage of compounds causing erosion and destruction of body parts Yassa.

In addition, for Knuth spaces known Yassa accumulated sludge, it softens the force generated by Assam impact and lowers the efficiency of known Yassa.

Low reliability and lack of durability are factors that reduce the probability of its use in the process of drilling wells.

Known gidromassazhnye Iasi, containing a hollow body with inner and outer anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod inner and outer strikers mounted on the hollow piston rod of the piston and the piston spacer seal movable and immovable joints, and in the hollow casing bores of different diameters, which are filled with liquid lubricant (see, for example, UK patent No. 2299107 from 25.09.96, MCL.6E 21 In 31/113).

In known hydrosilation the Yassa Central flow passage free for the passage of the measuring instruments to the face, therefore, it can be used as part of the bottom of the drill string during drilling, and for emergency response when sticking tools in the well.

In addition, the friction parts in known hydrosilation the Yassa work in liquid lubrication, and wear from friction is negligible. A significant disadvantage of the known gidromassazhnogo Yassa is that while it works when the liquid is of sticking the tool in the borehole is not conducted prior to the weakening and destruction of places of sticking, and a force on the place of sticking is carried out only longitudinal axial shock (vibration)that require high-strength body parts (and pipes of the drill string) and create the possibility for overstrain and their premature destruction. Military liberation stuck in a wellbore tool only blows insufficient and requires multiple repetition of the operation to free the tool from sticking.

Another disadvantage of the known gidromassazhnogo Yassa is that the design of the piston does not provide a sharp and rapid drop of the pressure to strike. In this regard, fail to achieve the necessary increase of the impact force for the effective release of the tool from sticking. Low efficiency is known gidromassazhnogo Yassa, lack of reliability and a significant investment of time, labor and means to eliminate the sticking of the tool in a well does not allow the use of known gidromassazhnye Iasi in drilling oil and gas wells.

Known hydraulic Iasi, containing a hollow body with an internal axial anvil mounted therein for axial movement without mutual rotation of the hollow rod with the stop mounted on the hollow shaft of the internal firing pin, piston and piston-divide the ü, seal movable and immovable joints, and the lower part of the hollow body is in the form of circular cylinders with bores of different diameters for cooperation with the piston and with the piston separator and filled with liquid lubricant (see, for example, U.S. patent No. 5.174.393 from 29.12.92, MCL.5E 21 In 31/113).

A disadvantage of the known hydraulic Yassa is that it has a closed cavity, soamsawali hole with the annular space and the execution of tripping in the process of drilling the cavity sucks and collects small particles drilling cuttings (cuttings). For some time in a closed cavity sludge cemented and results known hydraulic Iasi in disrepair: Iasi ceases to perform its main function - the ability to eliminate the sticking of the tool in the well.

Another disadvantage of the known hydraulic Yassa is that it frees sticking the tool in the borehole due to the axial movement of the drill string stuck with tool.

This requires considerable axial forces on the drill string and a long time to eliminate the sticking of the tool.

Therefore, these significant shortcomings have prevented its widespread use and limit the use of known side hydraulic the ski Yassa when drilling oil and gas wells, as well as significantly increase the material cost of performing drilling operations.

Closest to the invention to the technical essence and the achieved technical result is Yass hydromechanical, containing a hollow body with inner and outer axial anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal striker mounted on the hollow rod top sub with outer brisk, piston, hollow tip with a movably mounted piston separator, seal movable and immovable joints, and the lower part of the hollow body is in the form of an annular cylinder with the working bores of different diameters for cooperation with the piston and filled with liquid lubricant (see, for example, RF patent №2145659 from 20.02.2000, MCL.7E 21 In 31/113, 31/107).

The invention adopted for the prototype because it eliminated some major disadvantages inherent in the known Assam: the Central channel released to skip the measuring instruments to the slaughter, in this regard, increased technological capabilities hydromechanical Yassa and increases the accuracy of the wiring holes in a predetermined path, a piston placed in the environment of liquid lubricant. In this regard, the wear of the moving parts will be minimal details will is to work longer, reliability and durability of Yassa partially raised.

A significant disadvantage of the known hydromechanical Yassa is that it has the ability to create efforts, shock and vibration, directed along the axis of the drill string, and is not able to create them in the radial and in the radial direction.

As a result, the process of liberation from sticking the tool in the borehole is delayed for a long time and requires additional time, labor and money, because the sticking of the tool in the borehole is carried out in the radial direction and is easier to release the stuck tool, if in the process of lifting the drill string to work on it and in the transverse direction and longitudinal.

Another significant disadvantage of the known hydromechanical Yassa is that it is not protected against the ingress of silt and fine abrasive particles in a closed cavity formed between the hollow body and the hollow shaft and hydraulically connected by a hole with the annular space in the borehole. Nothing prevents the ingress of slurry into the cavity when lifting the drill string and the mud in the well (in the annulus) with flushing fluid flows through the radial holes in the hollow body in a closed cavity, fills it, there accumulates and cemented, leads the Dublin core hydromechanical Yass into disrepair.

Subsequent use of the known hydromechanical Yassa need to take it apart, rinse thoroughly. Otherwise Slovenia and emergency hoist for repair hydromechanical Yassa not be avoided.

Also a disadvantage of the known hydromechanical Yassa is that its design incorporated device containing twisted springs, which, being a source of damage and failure, reduce the reliability and durability of the hydromechanical Yassa.

These and other disadvantages of the known hydromechanical Yassa not possible to fully ensure its long-term trouble-free operation and do not allow to increase the technological capabilities of Yassa, its economic efficiency, reliability and durability.

Objectives of the invention are the elimination of existing disadvantages of the known hydromechanical Yassa and reduced coefficient of friction stuck in a wellbore tool of the breed, more efficient use of energy stretched the drill string to eliminate the sticking of the tool in the well, reducing the likelihood of exorbitant increase of stresses in the drill string, reducing the possibility of penetration of the slurry in hydro-mechanical Iasi and prevent premature wear and destruction of the parts, save more a long the capacity term in a healthy state and, ultimately, improve reliability, durability and economic efficiency hydromechanical Yassa.

The tasks are solved due to the fact that in the known ASEE hydromechanical, containing a hollow body with inner and outer axial anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal striker mounted on the hollow rod top sub with outer brisk, piston, complete with hollow tip and movably mounted on the hollow tip of the piston separator, seal movable and immovable joints, and the lower part of the hollow body is in the form of an annular cylinder with two opposite bores of different diameters for periodic mates with the piston and with the upper part filled with liquid lubricant according to the invention contains a host of circular and radial vibration, rigidly connected with the hollow body;

- node circular and radial vibration made in the form of multiple gyratory mechanism with internal helical gearing and includes a stator rigidly connected to the hollow body, located inside the stator with the possibility of eccentric rotation of the hollow rotor is a through axial channel, the axial bearing of the hollow rotor, bargain ball or tube for periodic overlap skvoz the CSOs axial channel of the hollow rotor, connecting and lower subs;

- at the ends of the hollow rotor is made of radial jaunty to interact with custom connectors and lower subs or at the ends of the stator inner ring anvils;

- axial bearing of the hollow planetary rotor is constructed in the form of a spring-loaded thrust bearing;

the piston is made in the form of a kit including fixed on the hollow shaft stationary guide sleeve with closed longitudinal channels and a flange-limiter and a sealing ring made with closed radial end groove and a longitudinal through the orifice and mounted on the guide sleeve is movable for periodic interaction between its ends with an end face of the sealing ring or washer-stop guide bushing hard cuff to the work surface, made in the form of a truncated elongated ellipsoid of rotation for interaction in the working bores of circular cylinder with a hollow body.

In the proposed hydromechanical the Yassa node circular and radial vibration, rigidly connected to the hollow housing, enables the creation and transmission of circular and radial vibration in the drill string and attached with the tool in the borehole in the process stuck, and combined in the and together with the generated axial shock and vibration and also with a hydraulic flushing of the borehole when stuck proposed Iasi hydromechanical allows effective elimination of sticking the tool in the well and allows uninterrupted operation of the tool when drilling oil and gas wells.

Due to the fact that the proposed Iasi hydromechanical, containing a hollow body with inner and outer axial anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal striker mounted on the hollow rod top sub with outer brisk, piston, complete with hollow tip and movably mounted on the hollow tip of the piston separator, seal movable and immovable joints, and the lower part of the hollow body is in the form of an annular cylinder with two opposite bores of different diameters for periodic mates with the piston and with the upper part filled with liquid lubricant contains the node circular and radial vibration, rigidly connected with a hollow housing made in the form of multiple gyratory mechanism with internal helical gearing, and includes a stator rigidly connected to the hollow body, located inside the stator with the possibility of eccentric rotation of the floor the second rotor is a through axial channel, axial bearing of the hollow rotor, bargain ball or tube for periodic overlap through the axial channel of the hollow rotor, connecting and lower subs, it is possible circular rotation of the rotor around its own axis, the planetary circulation of the rotor around the Central axis of the stator makes it possible to create circular and radial vibration of the stator, a hollow casing of the drill string and attached tool with minimal resistance and retention of the rotor from the axial unproductive move in the stator. This allows to achieve a significant reduction in coefficient of friction stuck in a wellbore tool of breed at the expense created hydromechanical Assam high-frequency vibration, more efficient use of energy elastically stretched when the release of sticking the drill string to eliminate the sticking of the tool in the well by reducing the friction of the tool and pipes of the drill string about the breed well, reduce the likelihood exorbitant increase of stresses in the Yassa hydromechanical and in the pipes of the drill string by reducing the resistance forces advancing the drill string and the tool in the borehole and grease wash fluid friction spots; reduce the possibility of penetration of the slurry in the closed cavity Yassa hydromechanical by agreed the deposits from the annulus whole body (without open radial holes, informing the inner cavity from the annular space), prevent premature wear and early destruction of the details due to space friction surfaces of the parts in the liquid lubricant.

Due to the fact that the node is circular and radial vibration Yassa hydromechanical made in the form of multiple gyratory mechanism with internal helical gearing, you receive the possibility of a new functional purpose: the use of multiple gyratory mechanism with internal helical gearing as high-frequency generator of circular and radial oscillations and vibrations with a frequency of planetary circulation of the rotor around the axis of the stator and additionally enhanced in Zbtimes (where Zbthe number of strikers made at the ends of the hollow rotor) frequency of radial oscillations (vibrations) of the stator.

Due to the fact that in the proposed Yassa hydromechanical node in the circular and radial vibration at the ends of the hollow rotor is made of radial jaunty to interact with custom connectors and lower subs or at the ends of the stator inner ring anvils, creates the opportunity to produce beats radial strikers along the circular anvils and call in the transverse direction of the high-frequency oscillations and radiolo the vibration of the stator, the hollow casing, the drill string and stuck in a wellbore tool, and thereby reduce the coefficient of friction stuck tool on the rock in the hole, to reduce the resistance to advancement of the drill string and the tool in the well.

In addition, high-frequency fluctuations and radial vibrations contribute to the concussion of the drill string and tool, in this regard, the retaining tool breed partially flaking and to a certain extent release the tool from sticking.

Due to the fact that in the proposed Yassa hydromechanical node in the circular and radial vibration axial bearing of the hollow planetary rotor is constructed in the form of a spring-loaded thrust bearing, which allows the application of eccentric beats and the longitudinal effects of the rotor on the drill string and tack tool, which help to reduce sticking. At the same time in this regard, the friction coefficient decreases and partially prevented from premature wear and failure of components of the unit of circular and radial vibration.

Due to the fact that in the proposed Yassa hydromechanical the piston is made in the form of a kit including fixed on the hollow shaft stationary guide sleeve with closed longitudinal channels and a flange-limiter and Oplotnica is a great ring with a radial closed end of the groove and a longitudinal through the orifice and mounted on the guide sleeve is movable for periodic interaction between its ends with an end face of the sealing ring or washer-stop guide bushing hard cuff to the work surface, made in the form of a truncated elongated ellipsoid of rotation for interaction in the working bores of circular cylinder with a hollow body, achieves a more reliable sealing of the annular cylinder, the delay Yassa hydromechanical for significant accumulation of potential energy of elastic strain in the drill column, achieved a significant reduction of hydraulic resistance to the advancement of the annular piston at hitting and moving the annular piston in the opposite direction.

All this contributes to a more efficient use of energy stretched the drill string to eliminate the sticking of the tool in the borehole and preserve for a longer period in a healthy state offer Yassa hydromechanical.

Thus, the implementation of the distinctive features in conjunction with the known in the Yassa hydromechanical creates the opportunity to eliminate the disadvantages inherent in the known Yassa hydromechanical, and reduces the coefficient of friction stuck in the quaine tool about the breed, more efficient use of energy elastically stretched the drill string to eliminate the sticking of the tool in the well, reducing the likelihood of exorbitant increase of stresses in the drill string, reducing the possibility of falling sludge in Iasi hydromechanical, prevent premature wear and destruction of the parts, save for a longer period in a healthy state and, ultimately, improves the reliability, durability and economic efficiency of the proposed Yassa hydromechanical.

To clarify the essence of the present invention presents drawings.

Figure 1 shows a General view of Yassa hydromechanical, its upper longitudinal section.

Figure 2 shows a General view of Yassa hydromechanical, its middle portion, an annular cylinder, a longitudinal section.

Figure 3 shows a General view of Yassa hydromechanical, its lower part, the node is circular and radial vibration, longitudinal section.

Figure 4 shows a cross-section "a-a" in figure 1.

Figure 5 shows the cross-section B-B ' in figure 2.

Figure 6 shows a cross-section of the "In-In" in figure 2.

7 shows a cross section G-G ' in figure 2.

On Fig shows a cross-section "d-D" in figure 3.

Figure 9 shows the cross-section E-E figure 3.

Figure 10 shows the Type of W is 2. The piston in the incision, increased.

Yass hydromechanical contains hollow body 1 with the outer axial anvil 2 and the inner axial anvil 3, mounted in the hollow body 1 with the possibility of axial movement without mutual rotation of the hollow shaft 4 is made hollow rod 4 internal brisk 5, mounted on the hollow shaft 4 top sub 6 with outer brisk 7, the piston 8, the stop 9 with a hollow tip 10 and movably mounted on the hollow tip 10 piston separator 11, the seal of mobile connections and static seals.

The lower part 12 of the hollow body 1 made in the form of an annular cylinder 13 with the working bore 14 of a smaller diameter and a working bore 15 of another, larger diameter for periodic alternating pairing with the piston 8, the lower part 12 together with the upper part 16 of the hollow body 1 filled with liquid lubricant.

Offer Iasi hydromechanical also contains the node 17 is circular and radial vibration, rigidly connected to the hollow body 1. Node 17 is circular and radial vibration made in the form of multiple gyratory mechanism with internal helical gearing (in the form of working bodies of multiple downhole motor and includes a stator 18, rigidly connected to the hollow housing 1 connecting sub 19 arranged inside the stator 18 is the possibility of eccentric rotation of the hollow rotor 20 with made it through axial channel 21, axial bearing 22 of the hollow rotor 20, made of a planetary in the form of a spring-loaded disc (or any other) by the spring 23 of the thrust bearing 24.

Yass hydromechanical part of the node 17 is circular and radial vibration includes bargain ball 25 or waste tube (not shown) for periodic (only during operation Yassa hydromechanical for releasing sticking tool) overlapping end-to-end axial channel 21 of the hollow rotor 20 and the bottom sub 26.

At the ends of the hollow rotor 20 is made of radial jaunty 27 to interact with is made for connecting the sub 19 and the lower sub 26 or at the ends of the stator 18 (not shown) of the inner ring of the anvil 28. When performing an internal ring of anvils 28 at the ends of the stator 18, the stator 18 is elongated in the length of these anvils.

Node 17 is circular and radial vibration Yassa hydro-mechanical axial bearing 22 of the hollow rotor 20 is sliding bearing with a constantly changing center (pole) speeds. It allows you to partially reduce the coefficient of sliding friction and to reduce resistance to rotation of the hollow rotor 20.

In the proposed Yassa hydromechanical the piston 8 is made in the form of a kit including fixed on the hollow shaft 4 is stationary guide sleeve 29 is made closed the mi longitudinal channels 30 and flange-limiter 31 and a sealing ring 32 with a radial closed end of the groove 33 and a longitudinal through the orifice 34, and mounted on the guide sleeve 29 is movable for periodic interaction between its ends with an end face of the sealing ring 32 (tensile Yassa hydromechanical) or shoulder-limiter 31 (compression Yassa hydromechanical) of the guide sleeve 29 rigid sleeve 35 with the working surface 36, made in the form of a truncated elongated ellipsoid of rotation for interaction in the working bores: 14 - smaller diameter and 15 of larger diameter annular cylinder 13 with a hollow housing 1. The greatest diameter of the working surface 36 of the rigid cuff 35 is made on its upper edge.

Node 17 is circular and radial vibration is a screw pair with the internal helical gearing, in which the number of teeth of the hollow rotor 20 is one less than the number of teeth of the stator 18. The hollow rotor 20 mounted eccentric in the stator 18, and their teeth form an enclosed cavity of the working chamber 37, in which the washing liquid can flow under the condition of rotation and planetary circulation of the hollow rotor 20 in the stator 18.

The stator 18 is usually performed from a steel billet, within which is mounted a rubber toothed lining.

Possible embodiments of the stator 18 with the toothed lining of polyurethane or other materials (including metals). In order to reduce East is Rania and wear of the teeth of the hollow rotor 20 is made of steel (preferably stainless steel) with surface hardening of teeth, for example, chrome plating, hard plating, etc.

Radial jaunty 27, made at the ends of the hollow rotor 20, the inner ring of the anvil 28, performed on the connection 19 and the bottom 26 subs (or made at the ends of the stator 18), and the axial bearing 22 of the hollow rotor 20 strengthened coated carbide composite materials.

On the spring loaded thrust bearing 24 is made of the mechanical radial channels 38 for the partial flow of washing fluid, cooling the friction surfaces and to prevent the accumulation of fine particulate abrasive particles in the axial support surface 22 of the hollow rotor 20.

Node 17 is circular and radial vibration can be made of a different design, for example in the form of a turbine with the eccentric weight on the shaft, or drive, etc.

The piston 8 is made with a movable axially rigid cuff 35.

Other constructions of the piston, such as piston rings, floating disks and with a check valve, etc.

Seal movable and immovable joints are made of standard rubber o-rings and rubber cuffs.

The top sub 6 proposed Iasi hydromechanical its internal thread connected to the drill pipe upper part of the drill string (not shown). From the bottom to the bottom pens is the'dnik 26 node 17 of the circular and radial vibration connects the lower part of the drill string tool (not shown).

Other choices are possible structural embodiment of Yassa hydromechanical.

It is advisable as part of the drill string above 1200-1500 m Yassa hydromechanical to install multiple HDP (heavy-weight drill pipe), which will serve as a screen and a reflector generated by node 17 of the circular and radial vibrations of elastic waves changing internal stresses in the pipes of the drill string and to enhance the action of Yassa hydromechanical to release stuck tool in the well.

Works Iasi hydromechanical as follows: Iasi hydromechanical part of the drill string with the tool is lowered into the well. The flushing liquid is supplied from a mud pump under pressure, flows freely through the pipes of the drill string in the top sub 6, the hollow shaft 4, the hollow tip 10 through the axial channel 21 of the hollow rotor 20, the Central hole of a spring-loaded thrust bearing 24, the bottom sub 26 (and then through the pipe the lower part of the drill string to the instrument and on the bottom). If this is a regular drilling.

Due to significant hydraulic resistance in the working chambers 37 node 17 of the circular and radial vibration compared to hydraulic resistance through the axial channel 21 of the hollow rotor 20, the flush fluid h is cut working chamber 37 to flow there will be no rotation of the hollow rotor 20 in the stator 18 is eliminated, also excluded are circular and radial oscillations and vibrations Yassa hydromechanical.

In the case of sticking the tool in the borehole and the inability usual way to extract it from the well in a drill string send junk ball 25 (or bargain tube, which passes freely in the pipes of the drill string inside the hollow rod 4, Yassa hydromechanical stops at the mouth of the through axial channel 21 of the hollow rotor 20, overlaps a through axial channel 21 of the hollow rotor 20 and directs the flow of washing fluid to bypass through the axial channel 21 to the working chambers 37 node 17 of the circular and radial vibration.

In this regard, the flushing liquid is supplied from a mud pump under pressure to the Yassa hydromechanical, flows through the hollow shaft 4 in the working chamber 37 of the node 17 is circular and radial vibration formed by the teeth of the hollow rotor 20 and the stator 18 and rotating the hollow rotor 20 in the stator 18, passes through the working chamber 37 flows in the radial window in the lower part of the hollow rotor 20 through the axial channel 21 and the bottom sub 26. At the same time the flushing fluid from the working chambers 37 partially passes through the mechanical radial channels 38, washing and cooling the friction surfaces of the axial bearing 22 of the hollow rotor 20.

Under the action of unbalanced hydraulic forces of the hollow rotor 20 powerchip what is around its own axis and planetary turns around the axis of the stator 18 with increased frequency.

During the flow of washing fluid through the working chamber 37 of the node 17 is circular and radial vibration overpressure and the kinematic interaction of the hollow rotor 20 with the stator 18 having oblique teeth on the hollow rotor 20 are unbalanced hydraulic axial and radial forces, the mechanical axial and radial forces, but also acts perekachivayuschih hollow rotor 20 in the stator 18 point.

Axial forces acting from top to bottom, is transmitted from the hollow rotor 20 on the spring Belleville spring 23, the thrust bearing 24 and perceived lower sub 26 (and the rest of the drillstring and tool).

Radial forces and perekachivayuschih moment acting in the transverse direction, is transmitted to the hollow rotor 20 on the stator 18 and the coupling 19 and the bottom 26 subs (and then to the drill string and the tool).

Unbalanced hydraulic forces, eccentric rotating and planetary paying, roll hollow rotor 20 and the stator teeth 18 around the axis of the stator 18 and thereby create circular and radial vibration of the stator 18 and just Yassa hydromechanical (together with the pipes of the drill string tool).

Radial jaunty 27, turning together with the hollow rotor 20 around the instantaneous axis velocity around the pole speed) with a certain angular speed planetary the treatment of the hollow rotor 20, hit the inner ring of the anvil 28 and shake coupling 19 and the bottom 26 subs, creating a radial vibration.

In the planetary circulation of the hollow rotor 20 around the axis of the stator 18 circular oscillations and vibrations of the stator are reproduced with high frequency (frequency of the planetary circulation of the hollow rotor 20).

In connection with reproducible blows radial strikers 27 on the inner ring of the anvil 28 are created of high-frequency vibrations and shocks connection 19 and the bottom 26 of the subs, the stator 18, the hollow body 1 and the drill string tool) with a frequency exceeding the frequency of the planetary circulation of the hollow rotor 20 in the stator 18 in the Zbtimes (where: Zb- the number of radial Boykov 27, performed at both ends of the hollow rotor 20).

Circular vibration and radial shock and vibration transmitted through the pipes of the drill string on an instrument in the form of elastic waves changing internal stresses.

Washing fluid, having a closed working chamber 37 of the node 17 is circular and radial vibration, the pipes of the lower part of the drill string moves to the stuck tool, through which enters the annulus, partially blurs the formed tube sticking tool, weakening its connection with the breed well, lubricates the walls of the Kvasiny and lifting up the annular space and vibrating, blends well.

In this regard, the location of the sticking tool loosened, eroded part of the tool is released from rocks, favorable conditions are created to reduce the effort required to extract the stuck tool from the well. The coefficient of friction of the tool (and pipes of the drill string about the breed well is significantly reduced. The result is a more efficient use of energy elastically stretched the drill string to eliminate sticking and extract the tool from the well, decreasing the probability that the exorbitant increase of internal stresses in the pipes of the drill string, to prevent the possibility of premature wear and destruction details, saved Iasi hydromechanical longer in a healthy state.

After preliminary loosening, shock or partial exemption stuck in a wellbore tool drill string elastic stretch, lifting her up with some force. The tool is still being held in the hole stuck. Top sub 6, the hollow shaft 4 with the piston 8, which includes the guide sleeve 29, the sealing ring 32, the rigid sleeve 35, the stop 9 with a hollow tip 10 under the action of C is the elasticity of the drill string is moved up relative to the hollow body 1. The liquid lubricant in the annular cylinder 13 of the lower part 12 of the hollow body 1, a moving piston 8 is compressed under pressure, overcoming local resistance is squeezed and flows through the closed longitudinal channels 30 of the guide sleeve 29 and, because the lower end of the rigid cuff 35 pressure tightly against the upper end face of the sealing ring 32, a liquid lubricant is fed in the radial closed end of the groove 33 and the longitudinal calibrated orifice 34 of the sealing ring 32 in the free space between the piston 8 and the piston separator ring 11 cylinder 13. In connection with this, the volume of liquid lubricant in the annular cylinder 13 above the piston 8, is somewhat reduced, and the excess pressure of the liquid lubricant is greatly increased and there is a substantial accumulation of potential energy that holds the hollow shaft 4 from the free promotion in the hollow body 1, in the form of high blood pressure. As you increase the tension of the drill string pressure in the annular cylinder 13 above the piston 8 rises to a certain limit, and a hard cuff 35 of the piston 8, partially rasimas, its working surface 36 more firmly pressed against the working bore 14 of a smaller diameter in the hollow body 1, thereby increasing the area of interaction with the hollow body 1. Is limiting the accumulation of potentially the energy in the drill string, and compressed in the annular cylinder 13 above the piston 8 of the liquid lubricant. Further uniform advancement of the hollow shaft 4 in the hollow housing 1 there is a constant slight speed. When the elastic elongation of the drill string in the borehole the effectiveness of vibration and shock for releasing the tool from sticking considerably increased.

Upon reaching the top edge having the largest diameter, rigid cuffs 35, the lower edge of the working bore 15 of larger diameter in the lower part 12 of the hollow body 1 is formed an annular gap between the piston 8 and the hollow body 1 with a significant area of the orifice. Compressed in the annular cylinder 13 above the piston 8 liquid lubricant through the resulting gap seamlessly flows into the free space under the piston 8 above the piston-separator 11, the pressure in the annular cylinder 13 drops sharply.

Under the action of the elastic pre-tension and dramatically shrinking the drill string hollow rod 4 with installed parts (together with the pipes of the drill string connected to the top sub 6) with acceleration moves up, and the hollow body 1 with node 17 of the circular and radial vibration (together with pipes of the lower part of the drill string connected to the bottom sub 26) moves rapidly down. Moving towards each other is the acceleration and gaining significant relative velocity, the hollow rod 4 to its internal brisk 5 hits on the inner axial anvil 3 of the hollow body 1.

In the result of a blow up of the mass of the tubes of the upper part of the drill string substantially greater than the mass of the tubes of the bottom of the drill string with the tool, and due to the fact that the mechanical connection of the drill string in place of its attachment to the surface is much harder and less flexible than weakened circular and radial vibration connection stuck tool with the surrounding rock wells, the accumulated potential energy is elastically stretched and shrinking of the drill string and the kinetic energy of its upward movement is transferred into kinetic energy of motion up stuck in a wellbore tool.

In the result of a blow in the Yassa hydromechanical generated elastic waves internal tensile stresses, which are sent from the hollow rod 4 upward, and from the hollow body 1 is down to the stuck tool. Elastic wave internal stresses directed upwards, reaching up to heavy-weight drill pipe (UBT) is significantly larger cross-section and of greater specific gravity, is reflected and goes down, there is superimposed (added) on the elastic wave internal tensile stress directed from the hollow body 1 down and with a vengeance, and in conjunction with circular and radial shaking is a policy tool destroy communication tool with the breed well, holding the tool sticking, strontium tool from sticking and allow retrieval of the tool from the well.

Due to the fact that the proposed Iasi hydromechanical contains the node 17 is circular and radial vibration, rigidly connected to the hollow housing 1, is achieved the possibility of additional mechanical impact on the location of the sticking tool and weakening the degree of retention of the tool in the well.

In addition, high-frequency circular and radial vibration of the tool, the drill string and drilling fluid in the annulus significantly reduces the coefficient of friction and the friction force of the tool and the drill string in the borehole. Consequently, less force is required to extract the tool from the well, will decrease tension in body parts and parts that carry the power load, and Yass hydromechanical will last longer.

Due to the fact that the node 17 is circular and radial vibration made in the form of multiple gyratory mechanism with internal helical gearing, this is an opportunity to use multiple gyratory mechanism with internal helical gearing for a new purpose: create oscillations and vibrations with high frequency, transfer them to the place of greatest resistance movement and the reduction degree and the resistance to movement of the drill string in the well.

Due to the fact that in the proposed Yassa hydromechanical at the ends of the hollow rotor 20 node 17 of the circular and radial vibrations in a radial jaunty 27 to interact with is made for connecting the sub 19 and the lower sub 26 (or at the ends of the stator 18) of the inner annular anvil 28, the frequency of the vibrations and shocks increases several times, therefore, the effectiveness of vibration and shock significantly increases the coefficient of friction is reduced, harmful friction forces are reduced. This leads to a more efficient use of energy stretched the drill string to eliminate the sticking of the tool in the well and reduce the likelihood of exorbitant increase of stresses in the drill string.

Due to the fact that the axial bearing 22 of the hollow rotor 20 in the node 17 is circular and radial vibration made planetary in the form of a spring-loaded thrust bearing 24, is an opportunity to simplify the design of the reference node, the conditions for the changing of the sliding velocity of each point of the support surface, and in that case there is the possibility of reducing the coefficient of friction and reduce friction, prevent premature wear and destruction of the parts, save for a longer period in a healthy state Yassa hydromechanical, increasing it is dinasti and durability.

Due to the fact that the piston 8 is made in the form of a kit including fixed on the hollow shaft 4 is stationary guide sleeve 29 with closed longitudinal channels 30 and flange-limiter 31 and a sealing ring 32 with a radial closed end of the groove 33 and a longitudinal through the orifice 34 and mounted on the guide sleeve 29 is movable for periodic interaction between its ends with an end face of the sealing ring 32 or flange-limiter 31 of the guide sleeve 29 rigid sleeve 35 with the working surface 36, made in the form of a truncated elongated ellipsoid of rotation for interaction in the working bores 14 smaller and 15 of a larger diameter annular cylinder 13 with a hollow casing 1, is a high, reliable sealing of the rolling pair of piston 8 with a hollow housing 1 in the working bore 14 of a smaller diameter and free duct liquid lubricant with a low hydraulic resistance in the gap between the piston 8 and the hollow body 1 in the working bore 15 of larger diameter.

This leads to a more efficient use of energy elastically stretched the drill string to eliminate the sticking of the tool in the well.

When you do this:

- is certain to delay Yassa hydromechanical for accumulation bol is our potential energy and the subsequent more powerful blow, releasing stuck tool by creating a temporary increased hydraulic resistance to advancement of the hollow shaft 4 in the hollow body 1 and the flow of liquid lubricant through the piston 8;

- is the accumulation of potential energy by a significant increase in hydraulic pressure of the liquid lubricant in the annular cylinder 13 above the piston 8 of the hollow body 1 by increasing the magnitude of the elastic tensile strain of the drill string;

- converts the potential energy of the compressed under significant pressure liquid lubricant and the elastic tensile strain of the drill string into the kinetic energy of the accelerated motion in the opposite side of the hollow shaft 4 and the hollow body 1, together with the connected pipes of the drill string by a sharp and rapid discharge of the created above the piston 8 significant hydraulic pressure of the liquid lubricant and a significant reduction of hydraulic resistance to movement of the hollow shaft 4 in the hollow body 1 and the flow of liquid lubricant through the piston 8 in the free cavity above the piston separator 11;

- converts the kinetic energy of motion in the opposite side of the hollow shaft 4 and the hollow body 1, together with the pipes of the drill string connected thereto) in the pulse power needed and spent on what I release the tool from sticking in the well due to a sharp blow up internal firing pin 5 of the hollow shaft 4 to the inner axial anvil 3 of the hollow body 1, transmitted to the tool in the form of elastic waves changing internal stresses in the pipes of the drill string and the ultimate joint tool from sticking in the well.

Strikes internal firing pin 5 of the hollow shaft 4 to the inner axial anvil 3 is repeated up until the tool is released from sticking in the well (usually just one kick).

To re-strike, it is necessary hollow rod 4 together with the upper part of the pipes of the drill string) to move down in the hollow body 1.

When this rigid sleeve 35 mounted on the guide sleeve 29 slidably entered into the production bore 14 of smaller diameter of the hollow body 1 under the action incurred incremental friction will slow down their movement and will slide along the guide sleeve 29 until it reaches its upper end flange of the stopper 31 of the guide sleeve 29. The movement of the piston 8 together with the rigid cuff 35 will continue with the same speed.

Between the end face of the sealing ring 32 and the lower end of the rigid cuff 35 is formed on the face gap, and a liquid lubricant will have the opportunity freely on a closed longitudinal channels 30 of the guide sleeve 29, passing lengthwise through a calibrated orifice 34, to flow from the free cavity above the piston separator 11 in the annular cylinder 13 above the piston 8. This is going to be to last as long while the outer head 7 of the top sub 6 will not strike against the outer axial anvil 2 of the hollow body 1. The impact force down you can adjust the speed of lowering of the hollow shaft 4, together with the pipes of the drill string in the borehole) in the hollow body 1.

Thus Iasi hydromechanical will be prepared for the application of subsequent blow up. If necessary, the transmission of torque through Yass hydromechanical rotation from the top of the sub 6 is transmitted to the hollow shaft 4 and through working in grease the splined connection of the hollow body 1 in its upper part 16 and further through the connecting sub 19, the stator 18, the bottom sub 26 - on the lower part of the drill string.

Offer Iasi hydromechanical can be used not only as part of the drill string during drilling, but also in the elimination of the sticking tool in wells.

Thus, the implementation of the distinguishing features of the proposed Yassa hydromechanical in combination and in conjunction with the known create an opportunity to eliminate the disadvantages inherent in the known Yassa hydromechanical, and to achieve a positive result:

- reducing the coefficient of friction is stuck in a wellbore tool of the breed through the creation and use of high-frequency vibration;

- the more efficient use of energy elastically stretched the drill string to eliminate the sticking of the tool in the well by reducing the friction of the tool and pipes of the drill string about the breed well;

- reducing the likelihood exorbitant increase of stresses in the Yassa hydromechanical and in the pipes of the drill string by reducing the resistance forces advancing the drill string and the tool in the borehole and grease wash fluid friction spots;

- reducing the possibility of penetration of the slurry in the closed cavity Yassa hydromechanical due to shield them from the annulus;

- prevent premature wear and early destruction of the details due to space friction surfaces of the parts in the liquid lubricant;

- save for a longer period in a healthy state Yassa hydromechanical due to a more benign mode of operation.

All this allows to increase the reliability, durability and economic efficiency of the proposed Yassa hydromechanical designed to eliminate sticking of the tool in the borehole while drilling oil and gas wells, i.e. allows to solve in the invention of the task.

1. Yass hydromechanical, containing a hollow body with inner and outer axial anvils mounted therein for axial movement without mutual rotation of the hollow piston rod is made hollow rod internal striker mounted on the hollow rod top sub with outer brisk, piston, stop with olym tip and movably mounted on the hollow tip of the piston separator, seal movable and immovable joints, and the lower part of the hollow body is in the form of an annular cylinder with two opposite bores of different diameters for periodic mates with the piston and with the upper part filled with liquid lubricant, characterized in that it contains a host of circular and radial vibration made in the form of multiple gyratory mechanism with internal helical gearing, and includes a stator rigidly connected to the hollow body, located inside the stator with the possibility of eccentric rotation of the hollow rotor is a through axial channel, the axial bearing of the hollow rotor, bargain ball or tube for periodic overlap through the axial channel of the hollow rotor, connecting and lower subs, and at the ends of the hollow rotor is made of radial jaunty to interact with custom connectors and lower subs or at the ends of the stator inner ring anvils.

2. Yass according to claim 1, characterized in that the axial bearing of the hollow planetary rotor is constructed in the form of a spring-loaded thrust bearing.

3. Yass according to claim 1, characterized in that the piston is made in the form of a kit including fixed on the hollow shaft stationary guide sleeve with closed longitudinal channels and a collar-stop and will condense the aspects of the ring with a radial closed end of the groove and a longitudinal through the orifice and mounted on the guide sleeve is movable for periodic interaction between its ends with an end face of the sealing ring or washer-stop guide bushing hard cuff to the work surface, made in the form of a truncated elongated ellipsoid of rotation for interaction in the working bores of circular cylinder with a hollow body.



 

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