Sound-absorbing jacket for perforator
SUBSTANCE: jacket for a perforator moving along a guide in a longitudinal direction attached to the perforator guide on its two sides and making, together with the guide, a substantially closed space, where there is a perforator and at least the main part of a drilling rod located outside a well. At least a part of the sound-absorbing jacket is formed of two shells, i.e. an internal shell located in an external shell and attached to it to form substantially a single stable structure and a space that contains air or other gas or a gaseous mixture.
EFFECT: invention ensures stiffness and lightness of the jacket structure, improved sound-absorbing capacity.
21 cl, 4 dwg
Background of invention
The invention relates to sound absorbing casing to drill a hole punch that moves along the guide in the longitudinal direction, and sound-absorbing casing is attached to the guide punch with its both sides so that the sound-absorbing casing together with the guide forms an essentially closed space, in which are located the punch and at least the main part of the drill stem, outside of the well.
When drilling hard rocks using rigs that contain one or more shafts mounted on the frame, and a hammer mounted for movement along the guide mounted on the bolt (arrows). The guide also often set at the end of the boom can be moved in its longitudinal direction by means of a separate carrier to enable the location of the guide in a predetermined position and in a given direction for drilling. Taking into account these various movements of the boom and guide the drilling rig is equipped with different cylinders to perform the move or known cylinders, actuated by fluid under pressure.
A typical problem in the drilling of hard rocks is the noise produced by perforadora the resulting impact on the cutting head of the tool and the impact of the instrument on a solid rock as a result of various other movements, such as rotation, etc. Noise, which is distributed around a considerable distance, continues to create more and more problems, particularly near residential areas. To prevent the introduction of restrictions on working hours or the site attempts have been made to solve the problem, especially when drilling surface using various sound absorbing enclosures around the guide, and a hole punch. Such solutions are known, for example, from the publications WO 2006/038850, WO 00/39412, patent, Sweden 523874, U.S. patent 3667571 and Japan patent 5-295978. The problem with all these solutions is that they are too difficult or they do not reduce noise across the rig floor. In addition, the mechanical device used to open a sound-absorbing casing with the replacement or extension drill rod, are complex and time-consuming. In addition, acoustic enclosures are quite bulky and heavy, making it difficult for their manufacture and use.
Brief description of the invention
The purpose of the present invention is to provide a sound-absorbing casing more lightweight design and best sound-proof ability.
Sound-absorbing casing in accordance with the invention is characterized in that at least part Svyatogo the surrounding casing is made of two shells, that is, the inner shell located in the outer shell and attached thereto for the formation of essentially steady uniform structure and the space containing air or other gas or gaseous mixture.
The idea underlying the invention is that the sound-absorbing casing at least partially is twocovering so that it contains the inner shell, the inner surface layer, and the outer shell, i.e. the outer surface layer, and an air space between them to create a hard and sound-absorbing structure. In accordance with the embodiment of the invention the sound-absorbing casing is made of many components casing attached to each other, each component is duoBLOCK.
The advantage of the sound-absorbing casing in accordance with the invention is that when using duoBLOCK design, in which between the shells is the air, the design of the sound-absorbing casing is rigid and light and its absorption properties are appropriate. This acoustic cover is also easy to make from, respectively, made according to the size and shape of the components, because the components are easy to attach to one another so that connections were made with Somozas the Oia.
Brief description of drawings
The invention is described below in more detail with the aid of the attached drawings, on which:
1 schematically depicts a drilling rig equipped with a sound-absorbing casing;
figure 2 schematically depicts a sound-absorbing casing 1 is a partial side slit;
figure 3 schematically depicts a side view of the sound-proof casing with an open covering part of the drill stem;
figure 4 schematically shows a section made along a-a in figure 3.
Detailed description of some embodiments of the invention
1 schematically shows a drilling rig 1, made with a base part 2. The base part is usually mounted on wheels or rollers, in this embodiment, as an example, on rollers 3. Arrow 4, which essentially may consist of one or several parts (figure as example, it consists of one part), connected in a known manner with the base part 2. The boom 4 can be any known, essentially, the design of the boom, so there is no need to describe the boom in more detail. Known, essentially a way, but not shown in the figure, arrow 4 pivotally connected with the base part 2 to allow rotation of the boom at a given angle relative to the base part by means of known, essentially, Silov the x elements, such as cylinders with a working medium under pressure or something similar.
One end of the boom 4, is able to rotate with carrier 5, which in turn are mounted on the rail 6 can be moved in its longitudinal direction. Guide 6 can move relative to the carrier 5 by means of the cylinder 6a medium pressure is known, essentially, by the way. Guide 6 provided with a known puncher (not shown) for drilling wells through a tool, that is shown in figure 2 drill stem and the well-known drill head connected with it. Guide punch, and part of the drill stem is surrounded by a sound-absorbing casing 7, the construction of which is described in more detail below.
Figure 2 is a schematic depiction of sound-absorbing casing side view in partial section. Sound-absorbing casing 7 is made, as example of two different parts: part 7a, which serves as a closing part for absorbing casing 7 on the drill rod, and part 7b, and each part is made separately.The number of parts may vary in accordance with the requirements of production process, this can be accomplished many parts. These parts are mainly attached to one another for the formation of a solid absorbent to Juha 7 (compounds accordingly, isolated, with sound-absorbing casing 7 is attached to the guide of drill in such a way as to surround the upper portion of the rail 6, the punch 8, the drilling rod 9 and the guides 10 and 11 of the punch. The closing part 7a mounted for movement in a transverse direction relative to the sound-absorbing casing 7 by means of a separate transfer cylinder 12. This is described separately in more detail in figure 4. In addition, one end of the sound-absorbing casing 7, i.e. the end facing the cutting head punch, made to allow part 13 for suction of dust and reduce noise.
Figure 3 schematically depicts a sound-absorbing casing with an open covering part 7a of the drill rod. It shows how the closing portion 7a, is required for the maintenance of the drilling rod 8, is lifted up from a sound-absorbing casing 7 for installation of the drill rod in the drill or extract therefrom drill rod. On the two end parts of the covering part 7a on two lateral sides of the boom 6 set the transfer cylinders 12, providing for the closing part 7a of the possibility of diversion from the sound-absorbing casing 7 and, thus, open to ensure maintenance of the drill rod and, accordingly, provide for the closing hour of the 7a and the ability to move so to stay connected with absorbent casing 7 during the execution of drilling.
For installation and retrieval of the drill rod when opening must be provided sufficiently large and long hole between the sound-absorbing casing 7 and the closing part 7a. Therefore, the transfer cylinders 12 in the longitudinal direction of the absorbent casing 7 and the boom 6 is located at a distance from each other, providing the ability to move the drill rod 9 from the position between the transfer cylinders 12 in position between the sound-absorbing casing 7 and the closing part 7a, and accordingly retrieve from there. The stroke length of the transfer cylinder 12 can be selected are different. Stroke length can be equal or different on different sides of the sound-absorbing casing, in this case, the closing portion 7a is forced to rotate in the transverse direction of the sound-absorbing casing 7 at a distance outside the stroke of the drill rod.
Figure 4 schematically depicts a cross section of a sound-absorbing casing, made by a-a in figure 3. As shown in figure 4, the sound-absorbing casing has two membranes, that is, it contains the inner shell 13a and the outer shell 13b and airspace 13c between them. Shell made of a material which can be easily formed, for example, by centrifugal is itia. Shell attached to one another at their edges for the formation of a uniform design in such a way that between the shells there is a space for 13c air or, if necessary, other gas or gaseous mixture. The actual shell is made of a material that is relatively well prevents the spreading of loud thuds, usually made of polyethylene or suitable plastic material. Thanks to the double shell design sound-absorbing casing is tough and it is well to suppress radiated noise.
Various intermediate part connecting the shell, can be installed between the shells, for example, walk-through like the stub connections for attaching various components to the sound absorbing casing. The cross sectional profile of the outer shell and the inner shell is made to provide a more rigid sound-absorbing casing and greatest attenuation of noise. On the one hand, allows to provide a rigid structure and, on the other hand, the movement of the closing part 7a of the sound-absorbing cover for its dense and stable bonding with absorbent casing 7 so that the gap between them was sealed, and soundproofing remained effective. Figure 4 also depicts how the sound-absorbing casing scrap aetsa with straps 14, attached to the lateral sides of the guide 6 by means of a separate fastening elements such as screws 15 or the like. Separate, for example, a softer sealing material with the best properties of noise absorption can be placed between the edges of the sound-absorbing casing 7 and the guide 6. The sealing material as such may also be the same material as was used for the rest of the sound-absorbing casing.
It should in particular be noted that the method of sealing a seam between the closing part 7a and sound-absorbing casing 7 is to use the inclined surfaces 16a and 16b on the edges of the sound-absorbing casing and closing part so that when the movement of the closing part 7a it is fastened with a sound-absorbing casing, while the inclined surfaces 16a and 16b are pressed one to another, forming compressed sealing seam. The joints between the closing part 7a and the rest of the sound-absorbing casing can be sealed and known by separate seals.
Shell 13a and 13b have ribs 17a-17d. In the shell 13a of the longitudinal edges 17a are located on the side of airspace 13c between the shells 13a and 13b, while the rib 17b, which is in the housing rebate, is located on the inner side of the shell 13a, that is, in the same itself is m space, as the punch. Similarly, in the shell 13b longitudinal edge 17c and transverse edge 17d is made on the side of the air space 13c between the shells 13a and 13b. Such ribs can be performed only in one of the shells or both shells in length or breadth. In addition, they can be performed either on the outer or on the inner side of the shell. If the edge is made between the shells, it can even take place completely to another shell. The ribs serve to stiffen the shell, if so required for the shell material. Ribs may be completely solid or hollow, or in the shell can be made folds.
The stroke length of the transfer cylinder 12 can be selected are different. They may be of equal length, or the length of the stroke can be different on different sides of the sound-absorbing casing, providing, so to speak, the ability to rotate sound-absorbing casing at a distance outside the stroke of the drill rod.
If necessary, the cover 7 can be located on a separate support elements attached to the sound-absorbing housing 7, such as, for example, the control of the arc 18 and the support rods 19 in the longitudinal direction of the absorbent casing to give it rigidity. Material arcs 18 and rod 19 may be solid, but preferably they are hollow tubular or QCD is icymi profiles, such as U-shaped, I-shaped and L-shaped profiles. Arc and terminals can be combined with each other or may be separate parts attached together. It is obvious that the supporting elements of the closing part 7a are owned by a single entity, while the supporting elements of the rest of the sound-absorbing casing, i.e. the part that is attached to the guide rail 6, are owned by a single entity. In addition, sound-absorbing casing 7 may be located noise dampening plate 20 made of a separate absorbing material that at least partially covers the inner surface of the sound-absorbing casing 7. Such a plate can be, for example, a perforated plate made of metal or other material attached to the supporting arcs 18 and the support rods to the opposite side of the sound-absorbing casing 7. Noise dampening plate can be, by necessity, completely or only partially perforated or even perforated. Noise dampening plate 20 can also be used without supporting elements, in this variant, it is naturally attached directly to the sound absorbing casing 7 so as to rely on a separate pivot bushing or the like, and/or to the ribs facing the inner space of VN the inner shell 13a.
In the above description and drawings the invention is described only by way of example and in no way restricted to this. A distinctive feature in that the sound-absorbing cover together with parts made of two shells that are located at a distance from one another so that between them provided the space for air or gas.
1. Sound-proof casing for the punch, moving along the guide in the longitudinal direction, is attached to the guide of drill on its two sides and constituting together with the guide (6)essentially enclosed space in which is located the punch and at least the main part of the drill stem, outside the well, characterized in that at least part of the sound-absorbing casing (7) is formed of two shells, the inner shell (13A)located in the outer shell (13b) and attached to education, in essence, sustainable a uniform structure and space (13C), containing air or other gas or gaseous mixture.
2. Sound-absorbing casing according to claim 1, characterized in that it is made of many components casing attached to one another for the formation of a sound-absorbing casing (7), essentially sealing the connection.
3. Sound-absorbing casing according to claim 1, characterized in that h is o contains a separate closing part (7a), able to move from its location for installing or removing drill stem (9).
4. Sound-absorbing casing according to claim 3, characterized in that the closing part (7a) mounted for movement relative to the sound-absorbing casing (7)essentially perpendicularly from the sound-proof casing (7) and, similarly, to the sound absorbing casing (7).
5. Sound-absorbing casing according to claim 2, characterized in that it contains a separate closing part (7a) can be moved from its location to install or remove the drill rod (9).
6. Sound-absorbing casing according to claim 5, characterized in that the closing part (7a) mounted for movement relative to the sound-absorbing casing (7)essentially perpendicularly from the sound-proof casing (7) and sound absorbing casing (7).
7. Sound-absorbing casing according to any one of p-6, characterized in that the closing part (7a) mounted for movement through the transfer cylinder (12)installed on both sides from the opening to the closing part (7a) and, similarly, on both ends of the closing part (7a) at a distance from the transfer cylinder (12) in the longitudinal direction of the absorbent casing (7)in excess of the length of drill rod.
8. Sound-absorbing casing according to claim 7, characterized in that the edges for Ryuusei part (7a) and sound-absorbing casing (7) is made with surfaces (16A, 16b), tilted one with respect to another in the same direction so that when closing the closing part (7a), they are, in essence, tightly pressed one to another.
9. Sound-absorbing casing of claim 8, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as for example, the reference arc (18) and support bars (19) in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).
10. Sound-absorbing casing according to any one of p-6, characterized in that the edges of the closing part (7a) and sound-absorbing casing (7) is made with surfaces (16A, 16b), tilted one with respect to another in the same direction so that when closing the closing part (7a), they are, in essence, densely pressed to each other.
11. Sound-absorbing casing of claim 10, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as, for example, the reference arc (18) and support bars (19), in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).
12. Sound-absorbing casing according to claim 11, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the absorbent is aguja (7).
13. Sound-absorbing casing according to any one of p-6, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as, for example, the reference arc (18) and support bars (19), in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).
14. Sound-absorbing casing according to item 13, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the sound-absorbing casing (7).
15. Sound-absorbing casing through 14, characterized in that at least part of the surface noise dampening plate (20) is perforated.
16. Sound-absorbing casing according to any one of p-6, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the sound-absorbing casing (7).
17. Sound-absorbing casing according to item 16, characterized in that at least part of the surface noise dampening plate (20) is perforated.
18. Sound-absorbing casing according to item 16, wherein the noise dampening plate (20) is made of the same material as sound-absorbing casing (7).
19. Sound-absorbing casing according to item 16, characterized in that then noise dampening plate (20) is made of metal.
20. Sound-absorbing casing according to item 16, wherein the noise dampening plate (20) is attached at a distance from the surface of the inner shell (13A) sound-proof casing (7).
21. Sound-absorbing casing according to any one of p-6, characterized in that it contains equipment for serving punch.
SUBSTANCE: mobile drilling rig comprises a tower with folding sections, a lifted sectional folding base, modules of the main blocks on a transport base, a power unit, variable-frequency electric drives of the main mechanisms. Easily transportable quick-assembly sectional tower is arranged with an open front face, with inbuilt upper drive to work with drilling pipe stands of 24-25 m nominal length. The rig comprises a universal lifted base, which is raised into a working condition with the help of hydraulic cylinders to the height of up to 10 m, with the mechanism used to move a tower-hoist unit of an industrial drilling rig in the area of a well cluster with the help of the electric drive of load trolleys, moving along a rail track, a variable-frequency AC electric drive with a digital control system for the main equipment of a mobile drilling rig and a soft start device at electric drives of auxiliary mechanisms.
EFFECT: high power efficiency and erecting capacity, higher safety of drilling works and major overhaul of wells.
FIELD: oil and gas production.
SUBSTANCE: axial line of driven tunnel is determined with, for example, curve fitting. Data on location of drill platform on axial line of the tunnel are transmitted to the control panel; navigation plane of the blast holes placement layout is arranged on axial line of the tunnel. The initial point of set of the blast holes is positioned on the axial line of the tunnel considering length (L) of the blast holes set. Additionally, the final point of the blast holes set is arranged at distance corresponding to length of blast holes set from the initial point; the coordinate system of blast holes placement layout is directed to facilitate one of its axes running from the initial point to the final point. Finally, various systems of coordinates are utilised.
EFFECT: new and improved procedure for directing layout of blast holes placement in curvilinear tunnel, also development of soft ware for implementation of procedure and drill rig.
19 cl, 8 dwg
FIELD: oil and gas production.
SUBSTANCE: device consists of feeding girder, one end of which corresponds to drill end, of case for sound absorbing, enveloping feeding girder, perforator and part of drill rod, of first protective part, stationary arranged on drill end of feeding girder, as end of case for sound damping, and of second protective part travelling in lengthwise direction relative to feeding girder. Protective parts have an orifice; the drill rod travels in this orifice during drilling; also, the drill rod is connected to perforator moving during drill operation on the feeding girder. The device is equipped with a tubular protective part, flexible at least in its lengthwise direction and positioned between orifices of the first and second protective parts; with its ends it is tightly attached to the first and second protective parts so, that it forms a closed space between the orifices of the first and second protective parts. Also, the device is equipped with a guide in lengthwise direction of the feeding girder. The second protective parts is connected to the guide and travels relative to it. There is a cylinder with a medium, operating under pressure between the first and the second protective parts to move protective part to the first protective part and away from it.
EFFECT: raised efficiency at sound damping.
9 cl, 3 dwg
SUBSTANCE: system for well drilling comprises base, mast, injector of flexible pipe and starter tip mounted on the mast so that it may move along it. At the same time starter tip provides for transfer of rotation torque for connection and disconnection of string components and may be used to drill with composite pipes. At the same time starter tip may be used to prevent unwanted rotation of drilling string in process of drilling, using well engine with the help of rotary cartridge capable of blocking. Drilling method is also disclosed with application of proposed system.
EFFECT: improving drilling plant operation reliability.
19 cl, 7 dwg
SUBSTANCE: invention relates to the field of construction engineering, in particular to drilling rigs, and may be used to drill wells in various soils. Installation comprises self-propelled chassis and suspended equipment, which consists of mast, carriage, rotator, stem, mechanism of stem displacement, mechanism of feeding, drilling tool, installation of braces, support bracket and casing equipment. Mast is made of two parts - lower main and upper movable, installed on carriage with the possibility to move carriage with upper part of mast along lower part of mast with the help of feed mechanism.
EFFECT: simplified design with reduction of dimensions, improved functioning of units.
2 cl, 2 dwg
FIELD: oil and gas production.
SUBSTANCE: configuration comprises design functional elements: a cable hoist, a hoist brake, an auxiliary hydromatic brake, an emergency hydroelectric drive, a hoisting tackle mounted on a base of self-propelled wheeled tote pivotally connected to an A-frame folding tower with a crown block. A configuration is supplied with a sloping ramp whereon there are mounted the tote, tower and wellhead platform provided with a barrier railing. The tower consists of two interpenetrations. Each structure of the tower consists of two sections, upper and lower, and is meshed. Between the upper sections of the tower, there is a stabbing board of a derrick man which is also provided with is executed with the barrier railing.
EFFECT: higher performance efficiency and enhancement of the unit.
2 cl, 2 tbl, 4 dwg
FIELD: oil-and-gas industry.
SUBSTANCE: method and arrangement of improved horizontal-inclined drilling assembly for well drilling through underground rocks formations using a drill pipe, includes the drill pipe or a drill string descending into the well and its later lifting up. The drilling assembly includes a power aggregate for its power supply, a support frame, which can move between in parallel to the rock and in perpendicular to the rock positions, and the support frame moving device. A rotor block and a carriage aimed to transfer rotation, axial and return towing (lifting) forces to the drill pipe. The drilling assembly aimed for wells drilling with use of the drilling pipe through underground rocks formations, with any angle relatively to the underground rocks, between in parallel to the rock and in perpendicular to the rock positions. The method includes the drilling pipe dislocation on the drilling assembly, the support frame movement in setting it in the required drilling angle, the rotor block and carriage movement till it have contact with the drilling pipe, transfer rotation, axial and return towing (lifting) force to the drill pipe and underground rocks formations drilling with the drilling pipe.
EFFECT: invention provides power increase for the rotation drive and easy transportation.
21 cl, 17 dwg
SUBSTANCE: aggregate contains vehicle track with stiffly connected on it frame with equipment, including tackle system mast, main one-drum and auxiliary hoists, mechanisms drives, operator cabin, back support, hydraulic jacks, height adjustable wellhead platform. The mast foundation hinge connected with mast's back support, around which the mast is rotating at its vertical (operating) position or descends into horizontal - transportation position. At that at the mast top part located force stretching elements, and the wellhead platform additionally equipped with front bars, which connecting it to the aggregate frame.
EFFECT: aggregate design simplification, the aggregate adjustment on the wellhead simplification, keeping its functionality at well deep boring, service and maintenance.
FIELD: oil and gas production.
SUBSTANCE: fixing mechanism includes a pair of clamping jaws, rods and hydraulic cylinder as drive, which are connected to them. At that, mechanism also includes the lever installed with possibility of being turned, longitudinal rod and reverse lever. At that, hydraulic cylinder is connected to the lever, one end of which is connected to rod connected to the first clamping jaw, and its other end is connected by means of longitudinal rod to reverse lever connected by means of rod to the second clamping jaw.
EFFECT: improving operating reliability and reducing the cost owing to simplified device design.
SUBSTANCE: group of inventions is related to mining and in particular includes method of dust processing in process of hard rocks, dust separator and plant for hard rock drilling. Rock material and air sucked from well (9) or from other operative position are separated from each other in dust separator (14). Separated rock material drops into outlet part (14a) of dust separator, from where it may be batched in portions to unloading device (16). Unloading device comprises closed space for pressing, in which portion of rock material is pressed into more compact state, in the shape of hard briquette (17), which is removed from dust separator (14).
EFFECT: efficiency is improved, as well as manufacturability, reduced pollution of environment.
15 cl, 10 dwg
FIELD: machine building.
SUBSTANCE: rotator consists of two parts of shaft of working element, of cam-pusher made in form of two-arm lever and interacting with parts of shaft, and of stationary cams on internal surface of reducer case. Rotation axis of the cam-pusher is made at angle α to rotation axis of the working element; also, tangent of angle α is determined by formula: tg(α)=k·f/(p·d), where k is coefficient of dynamic properties of material, f is coefficient of strength by scale of prof. M.M. Protodyakonov, and d is diametre of an orifice.
EFFECT: increased efficiency of pulse rotator in processed material of higher strength, minimal axial forces and improved axial penetration of drill due to arrangement of rotation axis of cam-pusher to rotation axis of working tool at angle α.
FIELD: machine building.
SUBSTANCE: pulse rotator consists of two parts of shaft of work member, of cam-pusher made in form of two-arm lever and interacting with parts of shaft, and of stationary cams on internal surface of reducer case. A driven part of the shaft is equipped with a flexible element facilitating bond between the parts of the work member shaft. Thrust faces are made on driving and driven parts of the shaft of the work member; they restrict deformation of the flexible element at idle run.
EFFECT: increased reliability and durability of operation of pulse rotator at occasional increase of power intensity of single pulse.
FIELD: machine building.
SUBSTANCE: pulse rotator consists of two parts of shaft of work member, of cam-pusher made in form of two-arm lever and interacting with parts of shaft, and of stationary cams on internal surface of reducer case. External arms and working sections of arms have different length and different angles of incline in each cam-pusher. Values of length and angle facilitate successive increment of torque pulse of each cam-shaft per one cycle at an idle run of the rest of the cams-pushers.
EFFECT: increased reliability and durability of cam-pusher, protection from resonance negative effect, improved process.
FIELD: oil and gas production.
SUBSTANCE: procedure for drilling borehole in rock is realised with perforator with drill rod attached to it. A bore bit, an impact device and rotary motor are arranged on the end of the drill rod. According to the procedure the rotary motor rotates the drill rod and the bore bit. Pressure pulses are directed to rock with the impact device via the drill rod, the bore bit and break rock. The implemented here bore bit corresponds to a cone bit; the impact device transmits pressure pulses of low amplitude at high frequency so, that coefficient of load (α) of the bore bit is at least 0.075.
EFFECT: raised efficiency of drilling and increased dimension of well according to efficient and cost-saving procedure.
6 cl, 3 dwg
FIELD: oil and gas production.
SUBSTANCE: according to procedure difference of pressure effecting rotation engine is applied for adjustment of guide valve which is so enabled to regulate control pressure of supply control valve. The installation consists of the guide valve adjusting control pressure of the supply control valve under effect of difference of pressure operating at a rotation engine. The valve also contains a delay element retarding return of a valve slide to a normal position at travel of the slide from the normal position under effect of pressure difference operating on the rotation engine.
EFFECT: facilitating more reliable and functionally improved adjustment.
8 cl, 1 dwg
SUBSTANCE: invention refers to boring, particularly to tail piece actuated by, at least, rotation and/or percussion of tool. The tail piece consists of, at least, one locking slot closed on an axial clamping end in axial direction to a free end, and similar, of drive slots of torque transfer with slot width (B), and, of at least, one contact surface of tangential force; also, at least, two drive slots of torque transfer have length (L) corresponding to threefold value of diametre (D) and are located before the axial clamping end of the tool side; they are made wider, than 1/5 of guiding diametre (D) and with, at least, 1.5 fold value of length of guiding diametre (D) along whole contact length (K).
EFFECT: facilitating trouble-free transfer of high torque and optimal transfer of percussion pulse.
11 cl, 5 dwg
SUBSTANCE: invention refers to percussion mechanisms designed for implementation in drilling percussion machines for destruction of fragile mediums. The invention significantly increases drilling tool effect onto bottom thus increasing efficiency of operation. The multi-percussion cam mechanism consists of an end cam and of a puller-anvil block with a roller secured on the latter; also the cam is made with several sections of anvil block cock; sections of the cock are arranged successively and differ one from another in height of profile; this causes change of a run of the puller-anvil block from section to section of the cock.
EFFECT: creation of multi-percussion cam mechanism able to perform several different by force percussions to drilling tool per one turn of cam.
SUBSTANCE: invention refers to mining, particularly to drilling equipment and can be employed in rigs for anchor bores drilling in hard rocks The rig incorporates drill rod, its rotator, rest-feeder, air hammer, and bracket with control levers. The air hammer is assembled between the rotator and the rest-feeder coaxially with the drill rod, its rotator and the rest-feeder. The air hammer with its upper end is freely donned on guiding bushing of rotator case coaxial with it, while with its lower end it rests on an elastic shock bumper installed on the rest-feeder and fixed with the bushing put on the case of the air hammer and inserted into circular slot of an upper cover of the rest-feeder.
EFFECT: increased service life of rig and ensuring safe working conditions for mine workers due to eliminating vibrations from case of air hammer to rig structure.
FIELD: petroleum industry.
SUBSTANCE: group of inventions is referred to drill string for upward drilling and to its components. The drill string includes shank adapter, first drill rod, extension stem and drill bit. The said components are capable of transferring shockwaves and circulating medium. The shank adapter includes the first and the second disconnectable parts. The first drill rod includes socket outlet with untrue inner wall to match relevant end of the adapter coupling. The socket is located in the bushing made conjointly with untrue section of the rod and includes the shock transfer surface arranged at right angle to the central line of the first rod. The extension stem includes socket outlet with untrue inner wall to match relevant end of the adapter coupling. The socket is located in the bushing made conjointly with untrue section and free end of the rod has untrue cross-section to match socket outlet of another extension stem or socket outlet of the first drill rod. Each end of the extension stem includes shock transfer surface arranged at right angle to the central line of the extension stem. Length of the first rod and extension stem is less than 1 m.
EFFECT: replacement of the rock drill components without disassembly.
12 cl, 7 dwg
FIELD: mining, particularly drives for drilling with combined rotary and percussive action.
SUBSTANCE: stringer comprises elongated cylindrical body having two end parts. The first end part comprises thread for stringer connection with drilling string. The second end part is provided with means to transmit rotation moment to stringer and drilling string. Body has axial flushing channel terminating in outlet orifice at the second part end. The flushing channel is adapted to receive flushing fluid through at least one radial side flushing orifice. Radial outer edge defining side flushing orifice extends along substantially convex line. Bending degree of each end of orifice exceeds that of other parts of said outer edge.
EFFECT: decreased damage caused by side flushing orifice configuration.
7 cl, 7 dwg
FIELD: mining industry.
SUBSTANCE: machine has conic toothed transfer with driving engine, vibration damper mounted on drill with cuter crown. Impact assembly is made in form of cross case, fixed at gear shaft of rotator, in aperture grooves of which impact balls or impact cylinders on support springs are mounted.
EFFECT: simplified construction.