Well drilling rig

FIELD: mining industry, particularly for drilling exploratory and pressure-relief wells before mineral extraction from formations, including outburst-dangerous formations and ones characterized with high gas content.

SUBSTANCE: drilling rig comprises housing, support, drive to rotate drilling rod provided with cutting tool and hydraulic cylinder for cutting tool pulldown. Electrohydraulic valve is installed in hydraulic cylinder circuit. Electric drive of electrohydraulic valve is linked with load-sensing unit, which detects load applied to drilling rod rotation drive. The electric drive is connected to load-sensing unit through amplifier relay to provide bringing amplifier relay into operation when load applied to rotation drive exceeds nominal load by 20-30%. Cutting tool is made as symmetric screw conveying surfaces defining forward and reverse strokes connected one with another through generatrix. Side cutting edges of surfaces defining forward and reverse strokes are spaced apart.

EFFECT: increased operational reliability along with reduced power inputs for drilling, possibility to remove rod from well with negligible deviation thereof from predetermined direction of drilling.

2 cl, 3 dwg

 

The invention relates to the mining industry and can be used for exploration and discharge wells in preparation for the excavation of minerals, including outburst and vysokogazonosnyh coal seams.

Known drilling machine (brochure German company), including hydraulic, rack consoles for drilling up and down, drill rod, the crown, the oil station and remote control Equipment for treatment and tunneling works", ed. Naipal, M., 1986, pp. 262-263).

A disadvantage of the known drilling machine is the inability to determine the start of tastybaby wells during drilling and that in certain situations with the release of gas from the reservoir leads to the clamping tool, and in some cases to its edge.

Also known drilling tool, comprising a plane-parallel case with symmetrically arranged edges forward and reverse (U.S. Patent No. 2590053, CL 175-383, 1952).

The disadvantage of plane-parallel case of such a tool is that it has no surface to force the transportation of the destroyed material in a reverse course when removing the drill rod from the well. Therefore, when such a tool increases the energy consumption during drilling as well as drilling required "perelapachivat" destroyed by the serious fossil plane-parallel platforms, and also during the reverse course not excluded "tacks" tool.

An object of the invention is to increase the efficiency of drilling and removing the drill rod from the outburst and vysokogazonosnyh coal seams.

To solve this problem in a drilling machine for drilling of wells, comprising a frame, lunette drive rotation of the drill rod with the cutting tool and the cylinder its filing, according to the invention in a hydraulic circuit of the hydraulic cylinder feed drilling rod mounted electro-hydraulic valve, electric actuator which is connected through a relay-amplifier to the load sensor drive rotation of the drill rod with the provision of the relay amplifier when the excess load on the motor for rotation by 20-30% from the nominal.

Cutting tools made in the form of screw-shaped and symmetrically arranged conveying surfaces of the forward and reverse flanking by forming, with the side cutting edges backward and forward stroke are separated from each other.

The invention is illustrated by drawings, where Fig 1 shows a layout diagram of an apparatus for drilling wells, Fig 2 shows a General view of the cutting tool, and figure 3 - cross section of it along a-A.

Machine for drilling directional wells for outburst vysokogazonosnyh layers consists of the base 1 with case 2 and the rotation drive 3 drilling rod 4 with the cutting tool 5, the feed cylinder 6 of the pumping station 7, the hydraulic valve 8, electropositive equipment with load sensor 9 and the relay-amplifier 10, and figure 2 and 3 separately presents the cutting tool 5, which consists of a body 11 with a screw-shaped and symmetrically arranged adjacent on 12 forming the conveying surface of the forward stroke 13 and transporting the reverse surface 14, side cutting edges forward stroke 15 and reverse 16, spaced from each other, the main cutting edges forward stroke 17 and reverse 18 and shaft 19, for connection with the drilling rod 5.

Work on drilling and removing the drill rod is as follows.

From an electrical outlet with the inclusion electropositive equipment with load sensor 9 and the relay-amplifier 10 is activated, the rotational drive 3 drilling rod 4 with the cutting tool 5, and with the simultaneous inclusion of the hydraulic valve 8 and the pumping station 7, the working fluid (oil) through the hydraulic valve 8 is supplied to the feed cylinder 6 connected with the frame 1, which is connected to the case 2, providing direction end part of the drill rod 4 when drilling from the actuator rotation 3 and the feed in the feed cylinder 6. The load sensor 9 rotational drive 3 monitors the load (torque) on the drilling rod 4 with the cutting tool 5, and when exceeding the naked the narrow 20-30% in the case of tastybaby wells and their clamping triggered relay-amplifier 10 and the electric signal from it is fed to the hydraulic valve 8, which starts and stops the flow of oil to the feed cylinder 5, while stopping supply of drilling rod 4 its rotation does not stop with the removal of the drill trivia from the well (in this case, auger drilling becoming) and the load is reduced and upon reaching the rated value, the relay amplifier 10 is turned off to disconnect the hydraulic valve 8 and the intake of the oil in the hydraulic cylinder of the feeder 5 and the drilling is resumed.

Additionally, to provide directional drilling and reducing energy consumption when removing the rod 4, the rotation from the drill rod 4 is passed cutting tool 5 through the shank 19 to the housing 11 (2, 3) located on it cutting the side edges of the forward stroke 15 and the top edges of the forward stroke 17, through which collapses an array of minerals and force due to the spiral made transporting surface of the forward stroke 13, forming limited 12 destroyed minerals or rock passes through the gap between the drilling rod 4 and the walls of the borehole (well), and then to his mouth.

The side cutting edges 16 retain the direction of drill hole (well), as are additional supports, not allowing to deviate cutting tool 5, and when removing the drill rod 4 with the cutting tool 5 through broken is destroyed if an array of minerals or rocks, flow in the reverse direction and with the main cutting edges reverse 18. The destruction and forced demolition and relocation clampable mineral (rock) or shedding using spiral made transporting the reverse surface 14, forming limited 12, and partially destroyed the detail is removed with the drill rod 4 connected with the cutting tool 5.

By guarding the specified torque and greater than 20-30% from the optimum is achieved the safety of the drilling rod, excluding its losses during the extraction process, and working at optimal given mode without overloading, increasing the total resource of the drilling machine, and using the proposed design of the cutting tool advanced energy is reduced when removing the drill rod and improves the orientation of the drilling, especially long wells.

1. Drilling rig for drilling wells, comprising a frame, lunette drive rotation of the drill rod with the cutting tool and the cylinder of its submission, characterized in that the hydraulic circuit of the hydraulic cylinder feed drilling rod mounted electro-hydraulic valve, electric actuator which is connected through a relay-amplifier to the load sensor actuator rotation of the drilling becoming the provision of relay amplifier when the excess load on the motor for rotation by 20-30% from the nominal.

2. Drilling machine according to claim 1, characterized in that the cutting tool is made in the form of a screw-shaped and symmetrically arranged conveying surfaces of the forward and reverse flanking by forming, with the side cutting edges backward and forward stroke are separated from each other.



 

Same patents:

FIELD: mechanical engineering, particularly to perform remote control specially adapted for machines for slitting or completely freeing the mineral.

SUBSTANCE: system includes electric drive for cutting tools, hydraulic drive for feeder legs and crawler, two-stage control hydroblock to operate the hydraulic drive having inlet channel, hydrocylinder with piston cavity for support erector, control hydroblock adapted to operate support erector hydrocylinder, blocking hydrocylinder having spring-loaded shaft return means, two-positioned pilot spool, pumps, pressurizing means and discharge means. Pilot spool has outlet channel and hydrocontrol cavity to provide pilot spool fixation in two working positions. Outlet channel of pilot spool communicates with outlet channel of two-stage control hydroblock adapter to operate the hydraulic drive of feeder legs and crawler to provide alternate communication between outlet pilot spool channel and pressurizing and discharge means. Hydrocontrol cavity of pilot spool communicates with blocking hydrocylinder and piston cavity of support erector hydrocylinder.

EFFECT: increased safety for people present in zone of moving mining machine parts action.

1 dwg

FIELD: mining industry.

SUBSTANCE: mining combine has extraction means, on which a body is mounted, having at least one first liquid outlet, for supplying liquid to material. Pipeline, through which liquid is fed to first liquid outlet, contains means for measuring flow and/or pressure of liquid in pipeline, for determining, in which of to layers outlet is positioned. Combine can have at least one second liquid outlet, placed in such a way, that first liquid outlet is in lower layer, and second liquid outlet is placed in upper layer. First liquid outlet can have one of multiple first liquid outlets spaced from each other, and second liquid outlet - one of multiple spaced from each other second liquid outlets. Efficiency of liquid flow through multiple spaced first outlets can surpass those of multiple spaced from each other second liquid outlets. Placement of second liquid outlet in separate body cover is possible. First and second liquid outlets can be directed downwardly relatively to direction of mining combine displacement. Method for controlling depth of position of mining combine extraction means includes placing two liquid outlets, interacting with material extraction means, in a material, while second liquid outlet is placed above first liquid outlet, liquid is fed to first and second liquid outlets and flow and/or pressure of liquid is measured. Layer, wherein liquid outlet lies, is detected, and first liquid outlet is placed in lower layer and second liquid outlet is placed in upper layer, to determine depth of position of extraction means relatively to two layers.

EFFECT: higher precision.

2 cl, 9 dwg

FIELD: mining industry.

SUBSTANCE: device has two asynchronous electric engines, connected via reducers to drive sprockets of continuous traction chain, provided with plane carriages with their possible displacement along the guide, and hydraulic cylinders for displacing guide on pit-face. To windings of stators of first and second electric engines connected respectively are outputs of first and second frequency converters, inputs of which are connected to power grid and control inputs of which are connected respectively to outputs of first and second frequency adjusters. To frequency adjusters also connected are inputs of load detectors, to outputs of which load balancing block is connected, outputs of which are connected to inputs of first frequency adjuster. To inputs of both frequency adjusters output of load adjuster is connected, inputs of which are connected to load-setting block and load sensor for second engine. To output of second frequency converter connected are input of control block, other input of which is connected to signal block of base plant, and stator winding of third asynchronous engine, which via mechanical link is connected to first and second hydraulic pumps, having constant working volumes. Output of first hydraulic pump is connected to force hydro-main and input of second preventing hydraulic valve and to first inputs of two-position hydraulic distributors with electromagnetic control, to electromagnets of which outputs of control block are connected. Second inputs of two-positional hydraulic distributors with electromagnetic control are connected to control chambers of hydro-controlled two-positional hydro-distributors, which are part of hydro-blocks. Outputs of hydro-controlled two-positional distributors are connected to opposite hollows of volumetric dosing device of each hydro-block, and their inputs are connected respectively to outputs of hydro-distributors for controlling hydro-cylinder for moving the guide on pit-face, inputs of each of which are connected to force and drain hydro-mains, and outputs are connected to piston and rod hollows of appropriate hydro-cylinder.

EFFECT: higher efficiency.

1 dwg

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Downhole tool // 2153057
The invention relates to the field of drilling and represents the downhole tool to an axial load to the elongated body located in the trunk of a borehole formed in a subterranean formation comprises at least one set with the possibility of rotation of the body with many cushions, is able to move radially to the wall of the barrel bore hole when the selected contact force between the roller and the wall of the barrel bore hole

Well drilling rig // 2265121

FIELD: mining industry, particularly for drilling exploratory and pressure-relief wells before mineral extraction from formations, including outburst-dangerous formations and ones characterized with high gas content.

SUBSTANCE: drilling rig comprises housing, support, drive to rotate drilling rod provided with cutting tool and hydraulic cylinder for cutting tool pulldown. Electrohydraulic valve is installed in hydraulic cylinder circuit. Electric drive of electrohydraulic valve is linked with load-sensing unit, which detects load applied to drilling rod rotation drive. The electric drive is connected to load-sensing unit through amplifier relay to provide bringing amplifier relay into operation when load applied to rotation drive exceeds nominal load by 20-30%. Cutting tool is made as symmetric screw conveying surfaces defining forward and reverse strokes connected one with another through generatrix. Side cutting edges of surfaces defining forward and reverse strokes are spaced apart.

EFFECT: increased operational reliability along with reduced power inputs for drilling, possibility to remove rod from well with negligible deviation thereof from predetermined direction of drilling.

2 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention refers to method for measuring stress wave and to a measurement unit and a rock breaking machine. An impact device transfers the impact pulses to a wave guide that generates a compression stress wave and a reflected tension stress wave propagating in the wave guide. The compression stress wave causes expansion of the wave guide, while the tension stress wave causes the sharpening, and in this case properties of the wave guide can be determined by measuring dimensional changes of the wave guide cross-section. Said measurements are analysed to control the rock breaking machine.

EFFECT: improved method and device.

11 cl, 25 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions is related to the area of formation of subsurface well bores. System for formation of subsurface well bore contains a rack-and-gear drive comprising a drive system with clamp arrangement capable of the drill stem control; automatic position control system comprising at least one measurement sensor connected to the rack-and-gear drive, at that automatic position control system is designed to measure and track increasing angular location of at least one pipe and control position of at least the above pipe using rack-and-gear drive.

EFFECT: provision of the well bore formation without interruption of the drilling process.

18 cl, 8 dwg

FIELD: mining.

SUBSTANCE: optimised measurement of loads in drilling process comprises the steps that follow. First measurement of flexure in performed at the first depth in the well. Note here that the first measurement yields the drill string inclination angle and azimuth at the first depth. Load at drill bit is measured at the first depth by sensor coupling arranged at the drill bit bottom assembly. Note that the latter makes the part of said drill string while said drill bit is arranged at the end thereof. Expected curvature of the well at the second depth in the well is calculated. Note here that expected curvature comprises the expected inclination angle and expected azimuth of drill string at the second depth. Load correction magnitude is calculated proceeding from the well expected curvature to calibrate the sensor coupling with load correction magnitude. Invention discloses also the long-term machine-readable data carrier and load measurement optimisation system to implementation of above process.

EFFECT: higher drilling efficiency, longer life of drill bit.

22 cl, 9 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to device for well development in the ground. The device comprises the carrier, mast installed at the carrier, slide bars installed so they can slide along the mast with drilling drive mounted at the slide bars and intended to actuate the drill rod into rotational movement, drive of the slide bars intended to move them along the mast, and control device to control drive of the slide bars. At that the control device is designed to determine own weight of the drill rod against result of back effort measurement obtained by the sensor. At that memory unit is envisaged in the device in order to store value of own weight of the drill rod; the control device is designed to deliver control signal to drive of the slide bars by which load of the drill rod to the borehole bottom may be set as equal to the preset value, moreover drive of slide bars is designed to press the drill rod actively to the borehole bottom, whereat the preset load exceeds force generated by own weight of the drill rod.

EFFECT: increased efficiency of well development.

8 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: claimed invention relates to downhole natural-pressure drill bit drive motors. Drill hole drilling system comprises the natural-pressure motor with the rotor to spin inside the stator, drill bit engaged with said motor to transfer the rotor revolution of said rill bit. The motor rotor includes at least one magnetic field source or magnetic field detector. The stator comprises at least one magnetic field source if the rotor comprises the magnetic field detector and includes at least one magnetic field detector is the rotor incorporates the magnetic field source. The processor can control the claimed downhole natural-pressure motor with the application of measurements generated by means of at least one magnetic field source and at least one magnetic field source.

EFFECT: adequate control over downhole motor.

18 cl, 11 dwg

FIELD: mining.

SUBSTANCE: control over drilling job comprises the construction by the first and second and first make-of-bottom-string transducers of the first and second time well-logging records describing the drill well parameter in the drilling path. Computer processor is used to define said make-of-bottom string while, at drilling, it executed the time shift by comparison of the first and second time well-logging records. The first and second time well-logging records are shifted to maximise the coefficient of the first and second time well-logging records correlation and to define the drilling rate and preset spacing between aforesaid transducers proceeding from the defined time shift.

EFFECT: determination of the drilling rate and depth.

15 cl, 15 dwg

FIELD: oil and gas industry.

SUBSTANCE: system containing a device for processing data and computer-readable medium storing instructions executed by said device for processing data for performing the corresponding operations. These operations comprise the steps of periodically receiving the load value when this load is applied to the component in the wellbore and when the load is applied to the component in the wellbore, the periodic determination of fatigue on this component caused by said load is at least partly on the basis of the indicated periodically received load values, and in which the periodic determination of fatigue on the component caused by the load. And the fatigue determination operation on the component contains the following steps reception of the fatigue model, which simulates fatigue on the component; providing a past history of load values as the first input to the fatigue model; providing a load value while said load is applied to the component, as a second input to the fatigue model and performing a fatigue model based on the first input and the second input, resulting in fatigue as an output; and providing fatigue in response to receiving the first input and the second input.

EFFECT: timely determination of the decommissioning of well components as they approach their service life.

17 cl, 4 dwg

FIELD: oil and gas industry.

SUBSTANCE: method includes determination of nominal model of downhole drilling dynamics based on sensor measurements from the downhole drilling equipment, determination of uncertainty for the nominal model of downhole drilling dynamics, determination of set of models based on uncertainty of the nominal model of downhole drilling dynamics which deviate from the nominal model of drilling dynamics, and creation of a virtual controller for downhole drilling equipment based on the nominal model and a set of models that deviate from the nominal model.

EFFECT: increased control accuracy of wellbore trajectory.

23 cl, 10 dwg

FIELD: mining engineering.

SUBSTANCE: method includes determining measurement values of a bottomhole assembly sensor, determining a model of the bottomhole assembly dynamics based on the measurement values of the bottomhole assembly sensor, determining a weight factor which corresponds to the final drilling point, determining a target function including the final drilling point weighted by the weight factor and one or more restrictions, wherein the target function comprises future states of the bottomhole assembly system, and determining said target function includes determining calculated future deviation from the target borehole path, determining an input control action on the bottomhole assembly that meets the target function and one or more restrictions, and using an input control action to the bottomhole assembly.

EFFECT: increased efficiency of the drill string bottom hole assembly control.

24 cl, 10 dwg

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