CN117266827A - Horizontal well geosteering equipment - Google Patents

Abstract

The invention relates to the technical field of geosteering equipment, and particularly discloses horizontal well geosteering equipment which comprises a movable supporting seat, wherein a movable frame is movably arranged on the movable supporting seat, a driving motor is fixedly arranged on the movable frame, one end of an output shaft of the driving motor is connected with a connecting shaft sleeve, a sampling drill barrel is fixedly arranged at the bottom of the connecting shaft sleeve, an output shaft of the driving motor is connected with a detection triggering mechanism, the connecting shaft sleeve is connected with the output shaft of the driving motor through a connecting shaft disengaging mechanism, an in-hole supporting mechanism is connected on the connecting shaft sleeve, a positioning seat is movably arranged at the position, corresponding to the sampling drill barrel, on the movable supporting seat, two movable plates are fixedly arranged on two sides of the positioning seat, and two groups of first hydraulic telescopic rods for driving the movable plates are fixedly arranged on the movable supporting seat.

Description

Horizontal well geosteering equipment

Technical Field

The invention relates to the technical field of geosteering equipment, in particular to horizontal well geosteering equipment.

Background

The horizontal well is a special well with the maximum well inclination angle reaching or approaching 90 degrees (generally not less than 86 degrees) and maintaining a horizontal well section with a certain length in a target layer, and geological exploration sampling equipment is needed to be used for exploration sampling of geology of a position to be drilled before the horizontal well is drilled so as to analyze information of regional geological underground structural characteristics, rock types, mineral components and the like, so that early preparation and guiding work during drilling of a later horizontal well is realized.

When the geological exploration sampling equipment is used for pushing the ground to conduct sampling operation, the drilling barrel is driven by the motor to rotate rapidly to directly push the ground, in the downward pushing process, soil samples below the ground enter the drilling barrel, sampling drilling holes are formed at the same time, but in the direct pushing sampling process by the sampling drilling barrel, hard and difficult broken stones or rock layers exist below the ground, when the drilling barrel is directly pushed down to be in contact with the hard stones or rock layers, the drilling barrel is difficult to break, at the moment, the drilling barrel and the hard stones or rock layers are in direct hard and hard collision condition, the drilling barrel continues to rotate, the situation that the drilling barrel is possibly damaged can occur can be adopted, meanwhile, when the drilling barrel is pushed down to the drilling hole, a method for continuously sampling downwards after the broken stone blocks or rock layers can be adopted, in the process of replacing the drilling barrel, if the inner wall part is loose, the problem that holes are likely to be broken can occur at the moment, and the subsequent sampling effect is affected, and the whole sampling effect is still to be further improved.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides horizontal well geosteering equipment.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a horizontal well geosteering equipment, includes movable supporting seat, movable mounting has the movable frame on the movable supporting seat, fixed mounting has driving motor on the movable frame, the one end of driving motor's output shaft is connected with connecting sleeve, connecting sleeve's bottom fixed mounting has a sample to bore a section of thick bamboo, driving motor's output shaft has detection trigger mechanism, connecting sleeve is through connecting the output shaft interconnect of taking off axle mechanism and driving motor, be connected with downthehole supporting mechanism on the connecting sleeve, the position movable mounting that corresponds the sample to bore a section of thick bamboo on the movable supporting seat has the locating seat, the both sides fixed mounting of locating seat has the fly leaf, fixed mounting has two sets of first hydraulic telescoping rod that are used for driving the fly leaf on the movable supporting seat, the flexible end of first hydraulic telescoping rod and the bottom fixed connection of fly leaf.

Preferably, the detection triggering mechanism comprises a first gear, an external box, a second gear, a movable shaft, a tension sensor, a pull rope and a movable ball, wherein the first gear is fixedly arranged on the outer wall of an output shaft of the driving motor, the external box is fixedly arranged at the bottom of the driving motor, the second gear meshed with the first gear is rotatably arranged in the external box, the movable shaft for connecting the second gear is rotatably arranged in the external box, the movable shaft is fixedly connected with the second gear, the tension sensor is fixedly arranged on the outer wall of the movable shaft, the pull rope is fixedly arranged on the tension sensor, and the movable ball is fixedly arranged at one end of the pull rope far away from the tension sensor.

Preferably, the detection triggering mechanism further comprises a shifting block, a fixed frame, an extrusion block, a first spring and a counter, wherein the shifting block is fixedly arranged on the movable shaft, the fixed frame is fixedly arranged on one side of the inside of the external box, the counter is fixedly arranged in the fixed frame, the extrusion block is movably arranged in the fixed frame, one side wall surface of the extrusion block, which is close to the movable shaft, is arc-shaped, the first spring for connecting the extrusion block is fixedly arranged in the fixed frame, and one end of the first spring is fixedly connected with the extrusion block.

Preferably, the connecting and disconnecting mechanism comprises a mounting shaft, an outer connecting sleeve, a clamping block, a positioning ring plate, a positioning block and a second hydraulic telescopic rod; the installation axle fixed mounting is in the bottom of driving motor's output shaft for connect the external cover fixed mounting of installation axle on the connecting axle sleeve, outer cover and installation axle swing joint, the location round board fixed mounting that is used for connecting outer cover is epaxial at the installation, location round board movable mounting is in the inside of outer cover, the even fixed mounting of screens piece is at the inner wall of outer cover, three locating piece movable mounting is in the inside of installation axle, the second hydraulic telescoping rod fixed mounting of the second hydraulic telescoping rod that is used for driving the locating piece is in the inside of installation axle.

Preferably, the downthehole supporting mechanism includes downthehole extension board, movable frame, tooth piece, third gear, connecting seat and third hydraulic telescoping rod, three downthehole extension board movable mounting is in the outside of connecting axle sleeve, movable frame slidable mounting is in the inside of connecting axle sleeve, the even fixed mounting of tooth piece is in the inside of movable frame, with tooth piece intermeshing's third gear rotation install in the inside of connecting axle sleeve, connecting seat fixed mounting is on the movable frame, third hydraulic telescoping rod fixed mounting is in the outer wall both sides of connecting seat and is close to the position of downthehole extension board, the third hydraulic telescoping rod passes through the kayser subassembly and is connected with downthehole extension board interconnect.

Preferably, the locking assembly comprises a locating clip, an inserting plate, an extension frame, an alignment bar, a fourth hydraulic telescopic rod and an anti-disengaging pin; the locating clamp is movably mounted on one side of the support plate in the hole, which is close to the connecting shaft sleeve, the bottom of the locating clamp is arc-shaped, a connecting port for mounting the locating clamp is formed in the support plate in the hole, a plugboard movably mounted on the outer wall of the connecting seat for connecting the locating clamp is used for connecting an extension frame movably mounted on the outer wall of the connecting seat for driving a third hydraulic telescopic rod of the extension frame to be fixedly mounted on the connecting seat, a locating strip is fixedly mounted on the plugboard, a movable port matched with the locating strip is formed in the inner wall of the locating clamp, a bayonet matched with the locating strip is formed in the inner wall of the movable port, and a fourth hydraulic telescopic rod for driving the locating strip is fixedly mounted on the locating strip.

Preferably, the locking assembly further comprises a mounting sleeve, a touch block, a contact sensor, a second spring and a pressure sensor, wherein the mounting sleeve is fixedly mounted on the support plate in the hole, the touch block is movably mounted in the mounting sleeve, a movable seat used for connecting the touch block is movably mounted in the mounting sleeve, the movable seat is driven by an electric telescopic rod and is fixedly mounted on the movable seat inside the mounting sleeve, one end of the second spring is fixedly connected with the touch block, a short shaft used for positioning the second spring is fixedly mounted on the movable seat, the short shaft is sleeved with the second spring, the contact sensor is fixedly mounted on one side, close to the touch block, of the extension frame, and the pressure sensor is fixedly mounted on one side, extending towards the inside of the positioning clamp, of the alignment strip.

Preferably, the support plate in the hole is movably provided with an outer connecting plate, the outer connecting plate is fixedly connected with the positioning clamp, the support plate in the hole is provided with a notch for accommodating the outer connecting plate, and the outer connecting plate is uniformly and fixedly provided with a cone plug block.

Preferably, the telescopic rod is fixedly arranged at the position of the connecting shaft sleeve corresponding to the support plate in the hole, the positioning strip is fixedly arranged on the telescopic end of the telescopic rod, the positioning groove movably connected with the positioning strip is formed in the support plate in the hole, and the positioning strip is movably arranged in the positioning groove.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the detection trigger mechanism is arranged, so that when the sampling drill drum is utilized to directly push and sample to the ground, the detection trigger mechanism can detect the hard stone and the rock layer when the sampling drill drum is directly pushed and sampled, when the detection trigger mechanism detects the hard stone or the rock layer which is difficult to crush, the connection shaft disengaging mechanism can perform the shaft disengaging operation of the connection shaft sleeve and the driving motor, and after the driving motor and the connection shaft sleeve are disengaged, the sampling drill drum is disengaged from the driving motor to stop rotating, and the protection operation of the sampling drill drum can be realized when the hard stone and the rock layer are encountered.

According to the invention, the in-hole supporting mechanism is arranged, so that the in-hole supporting mechanism can be used for supporting the inner wall of the sampling hole after the hard stone and the rock layer are detected, equipment replacement is carried out after the in-hole supporting mechanism is used for supporting the inner wall of the sampling hole, the sampling operation is carried out again by using equipment after the hard stone and the rock layer are crushed, the in-hole supporting mechanism is used for supporting the inner wall of the sampling hole, the problem of hole collapse during equipment replacement is avoided, and the integral sampling effect is improved.

Drawings

FIG. 1 is a schematic diagram of a horizontal well geosteering apparatus in accordance with the present invention;

FIG. 2 is a schematic diagram of a detection trigger mechanism in a horizontal well geosteering apparatus according to the present invention;

FIG. 3 is a schematic view of a connecting and disconnecting mechanism in a horizontal well geosteering apparatus according to the present invention;

FIG. 4 is a schematic diagram illustrating the disassembly of the connection and disconnection mechanism in a horizontal well geosteering apparatus according to the present invention;

FIG. 5 is a schematic view illustrating the installation of a coupling/decoupling mechanism and a coupling sleeve in a horizontal well geosteering apparatus according to the present invention;

FIG. 6 is a schematic view of the structure of the support mechanism in the hole of the horizontal well geosteering device according to the present invention;

FIG. 7 is an enlarged schematic view of FIG. 6 at A;

FIG. 8 is an enlarged schematic view of FIG. 6 at B;

FIG. 9 is an enlarged schematic view of FIG. 6 at C;

FIG. 10 is a schematic view of the internal structure of a mounting sleeve in a horizontal well geosteering apparatus in accordance with the present invention;

FIG. 11 is a schematic side view of an in-hole support plate of a horizontal well geosteering apparatus in accordance with the present invention;

FIG. 12 is a schematic view of the latch assembly of the horizontal well geosteering apparatus of the present invention;

FIG. 13 is a schematic view of the back side structure of a latch assembly in a horizontal well geosteering apparatus in accordance with the present invention.

In the figure: 1. a movable supporting seat; 2. a movable frame; 3. a drive motor; 4. a connecting shaft sleeve; 5. sampling drill barrels; 6. a positioning seat; 7. detecting a trigger mechanism; 8. connecting a shaft disengaging mechanism; 9. a hole supporting mechanism; 10. a first hydraulic telescoping rod; 11. a movable plate; 12. a first gear; 13. an external box; 14. a second gear; 15. a movable shaft; 16. a tension sensor; 17. a pull rope; 18. a movable ball; 19. a shifting block; 20. a fixed frame; 21. extruding a block; 22. a first spring; 23. a counter; 24. a mounting shaft; 25. an outer sleeve; 26. a clamping block; 27. positioning a ring plate; 28. a positioning block; 29. a second hydraulic telescoping rod; 30. a support plate in the hole; 31. a movable frame; 32. tooth blocks; 33. a third gear; 34. a connecting seat; 35. a third hydraulic telescoping rod; 36. a positioning clamp; 37. inserting plate; 38. an extension frame; 39. a mounting sleeve; 40. touching the block; 41. a contact sensor; 42. an outer connecting plate; 43. a cone insert block; 44. a positioning strip; 45. a telescopic rod; 46. a second spring; 47. alignment bars; 48. a fourth hydraulic telescoping rod; 49. anti-drop pins; 50. a pressure sensor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-13, a horizontal well geosteering apparatus comprises a movable supporting seat 1, a movable frame 2 is movably mounted on the movable supporting seat 1, the movable frame 2 is driven by an external hydraulic cylinder, a driving motor 3 is fixedly mounted on the movable frame 2, one end of an output shaft of the driving motor 3 is connected with a connecting shaft sleeve 4, a sampling drill tube 5 is fixedly mounted at the bottom of the connecting shaft sleeve 4, the sampling drill tube 5 can be drilled into the ground for geological exploration sampling operation, an output shaft of the driving motor 3 is connected with a detection trigger mechanism 7, when the sampling drill tube 5 drills into the ground for sampling, if a hard stone or a hard stone layer which is hard to crush is encountered, the detection trigger mechanism 7 can be detected in time and controlled by a controller to carry out subsequent emergency treatment, the connecting shaft sleeve 4 is connected with an output shaft of the driving motor 3 by a connecting shaft disengaging mechanism 8, when the detection triggering mechanism 7 detects hard stone blocks or rock layers which are difficult to crush, the connection tripping mechanism 8 can be matched with the detection triggering mechanism 7 to carry out emergency treatment so as to protect drill bits, the connection shaft sleeve 4 is connected with the in-hole supporting mechanism 9, when the sampling drill barrel 5 is used for drilling soil and meeting the hard stone blocks or the rock layers which are difficult to crush, an operator needs to pull the sampling drill barrel 5 upwards to replace the crushing drill bits to crush the stone blocks or the rock layers, when the sampling drill barrel 5 is pulled out of the inside of a drill hole, the in-hole supporting mechanism 9 can support the inside of the drill hole, the problem that the drill hole collapses when the sampling drill barrel 5 is pulled out due to partial geological soil loosening is avoided, the positioning seat 6 is movably arranged on the movable supporting seat 1 corresponding to the position of the sampling drill barrel 5, the sampling drill barrel 5 can be downwards drilled from the inside of the positioning seat 6, the movable plates 11 are fixedly arranged on two sides of the positioning seat 6, two groups of first hydraulic telescopic rods 10 used for driving the movable plate 11 are fixedly arranged on the movable supporting seat 1, the telescopic ends of the first hydraulic telescopic rods 10 are fixedly connected with the bottom of the movable plate 11, an opening is formed in one side of the movable supporting seat 1 corresponding to the position of the positioning seat 6, when hard stone or rock layer which is difficult to crush is encountered, the sampling drilling barrel 5 is pulled out from a drill hole, the movable plate 11 is driven by the first hydraulic telescopic rods 10 to lift the positioning seat 6 upwards after the sampling drilling barrel is pulled out, at the moment, the whole device can be removed from the drill hole, after the stone crushing drill bit is replaced, the stone or rock layer is crushed, and then the whole device is moved to the drill hole for sampling again; through being provided with detection trigger mechanism 7, when utilizing sampling drill 5 to the inside direct-push sampling of ground, detect trigger mechanism 7 can detect hard stone and rock layer when sampling drill 5 pushes away the sample, when detection trigger mechanism 7 detects hard stone or the rock layer of difficult broken, connect the axle operation that takes off of axle sleeve 4 and driving motor 3 can carry out, after driving motor 3 takes off the axle with connecting axle sleeve 4, sampling drill 5 breaks away from driving motor 3's drive and stops rotating, can realize the protection operation to sampling drill 5 when meetting hard stone and rock layer, downthehole supporting mechanism 9 can support the operation to the downthehole wall of sampling after detecting hard stone and rock layer, after downthehole supporting mechanism 9 supports the downthehole wall of sampling, carry out equipment change, carry out the sampling operation to hard stone and rock layer after breaking, utilize downthehole supporting mechanism 9 to support the downthehole wall of sampling hole wall of sampling again, the problem that the hole wall of hole collapse appears when avoiding carrying out equipment change improves whole sampling effect.

As a technical optimization scheme of the horizontal well geosteering equipment, the detection triggering mechanism 7 comprises a first gear 12, an external box 13, a second gear 14, a movable shaft 15, a tension sensor 16, a pull rope 17 and a movable ball 18, wherein the first gear 12 is fixedly arranged on the outer wall of an output shaft of a driving motor 3, the external box 13 is fixedly arranged at the bottom of the driving motor 3, the external box 13 is of a hollow structure, an opening sound is arranged on one side of the external box 13 close to the first gear 12, a second gear 14 meshed with the first gear 12 is rotatably arranged in the external box 13, the movable shaft 15 used for connecting the second gear 14 is rotatably arranged in the external box 13, the movable shaft 15 is fixedly connected with the second gear 14, the tension sensor 16 (EVT-14C 2) is fixedly arranged on the outer wall of the movable shaft 15, the tension sensor 16 is electrically connected with a peripheral controller (CPM 2C), the pull rope 17 is fixedly arranged on the tension sensor 16, the movable ball 18 is fixedly arranged on one end of the pull rope 17 far away from the tension sensor 16, the output shaft of the driving motor 3 rotates, the first gear 12 is driven to rotate and is meshed with the movable ball 15 through the second gear 14, and the movable ball 15 is meshed with the movable ball 15 when the second gear 15 rotates, and the movable ball is meshed with the second gear 15, and the movable ball 15 rotates in real-time, and the movable ball is gradually rotates, and the movable ball is meshed with the movable ball 15 when the movable ball is meshed with the second gear 15, and the movable ball 15 rotates, and the movable shaft 15 rotates, and the movable ball is gradually rotates; through being provided with detection trigger mechanism 7, in the sampling process, driving motor 3 drives connecting axle sleeve 4 and rotates, synchronous first gear 12 follows connecting axle sleeve 4 and rotates, first gear 12 pivoted synchronous through with second gear 14 intermeshing drive loose axle 15 rotates, the loose axle 15 rotates and drives movable ball 18 and do circular motion, the faster the rotational speed of movable ball 18, the greater the pulling force that pull sensor 16 receives, the rotational speed of movable ball 18 is slower, the lower the pulling force that pull sensor 16 receives, when the sample runs into difficult broken big stone or rock layer, sampling drill section of thick bamboo 5 appears blocking and bores the speed and slow down and keep rotating at a low speed continuously, at this moment the rotational speed of movable ball 18 slows down, the pulling force that pull sensor 16 can respond to the pulling force and reduce to low numerical value ((this low numerical value is the pulling force numerical value that pull sensor 16 corresponds when sampling drill section of thick bamboo 5 reduces to 50-100r/min from 200-400 r/min).

As a technical optimization scheme of the horizontal well geosteering equipment, the detection triggering mechanism 7 further comprises a shifting block 19, a fixed frame 20, an extrusion block 21, a first spring 22 and a counter 23, wherein the shifting block 19 is fixedly arranged on the movable shaft 15, the fixed frame 20 is fixedly arranged on one side of the inside of the external box 13, the fixed frame 20 is of a frame-shaped structure, the counter 23 is fixedly arranged inside the fixed frame 20, the extrusion block 21 is movably arranged inside the fixed frame 20, one side wall surface of the extrusion block 21, which is close to the movable shaft 15, is arc-shaped, the shifting block 19 can be in contact with the extrusion block 21 and extrude the extrusion block 21 when rotating, a first spring 22 for connecting the extrusion block 21 is fixedly arranged inside the fixed frame 20, one end of the first spring 22 is fixedly connected with the extrusion block 21, the extrusion block 21 slides to be in contact with the counter 23 after being stressed, and the counter 23 counts when the shifting block 19 rotates and shifts, the extrusion block 21 slides and resets; through being provided with above-mentioned structure, in the sampling process, driving motor 3 drives connecting axle sleeve 4 and rotates, synchronous first gear 12 follows connecting axle sleeve 4 and rotates, first gear 12 is rotated and is rotated through the mutual meshing drive loose axle 15 with second gear 14, when second gear 14 rotates at a low speed, the plectrum 19 on the loose axle 15 can contact each other with extrusion piece 21, extrusion piece 21 receives plectrum 19 and acts on extrusion counter 23, counter 23 counts the number of rotations of sample section of thick bamboo 5 from the reduction rotational speed, the rotational speed of sampling section of thick bamboo 5 is reduced and counter 23 counts the number of rotations of sample section of thick bamboo 5 when reducing the rotational speed, when the rotational speed of sampling section of thick bamboo 5 reduces to 50-100r/min and keeps this low speed 3s or more in time, then indicate that sample section of thick bamboo 5 has contacted hard stone or rock layer of difficult broken when pushing down, the use of tensile sensor 16 cooperates counter 23 to carry out stone and rock layer detection.

As a technical optimization scheme of the horizontal well geosteering equipment, the connecting and shafting mechanism 8 comprises a mounting shaft 24, an external sleeve 25, a clamping block 26, a positioning ring plate 27, a positioning block 28 and a second hydraulic telescopic rod 29; the installation shaft 24 is fixedly arranged at the bottom of an output shaft of the driving motor 3, the installation shaft 24 is formed by combining a cylindrical plate and a cylindrical pipe, an external sleeve 25 for connecting the installation shaft 24 is fixedly arranged on the connecting shaft sleeve 4, the external sleeve 25 is movably connected with the installation shaft 24, the external sleeve 25 is formed by combining a cylindrical pipe and two circular rings, a positioning ring plate 27 for connecting the external sleeve 25 is fixedly arranged on the installation shaft 24, the positioning ring plate 27 is movably arranged in the external sleeve 25, clamping blocks 26 are uniformly and fixedly arranged on the inner wall of the external sleeve 25, the clamping blocks 26 are blocks with trapezoidal cross sections, three positioning blocks 28 are movably arranged in the installation shaft 24, the positioning blocks 28 are blocks with trapezoidal cross sections, the positioning blocks 28 can be clamped between two adjacent clamping blocks 26, a second hydraulic telescopic rod 29 for driving the positioning blocks 28 is fixedly arranged in the installation shaft 24, the second hydraulic telescopic rod 29 is electrically connected with a peripheral controller, and the second hydraulic telescopic rod 29 drives the positioning blocks 28 to be clamped between the two adjacent clamping blocks 26 in a sliding manner so as to realize the external connection of the installation shaft 24 and the external sleeve 25; through being provided with and connecting the uncoupling site mechanism 8, when detecting hard stone or rock layer, the controller control second hydraulic telescopic rod 29 starts drive locating piece 28 and screens piece 26 and breaks away from, and installation axle 24 and external cover 25 unblock can not continue to drive the rotation of sample bore tube 5 when driving motor 3 continuously rotates, and sample bore tube 5 can not keep rotatory and contact with hard stone or rock layer, realizes the protection to sample bore tube 5.

As a technical optimization scheme of the horizontal well geosteering equipment, the in-hole supporting mechanism 9 comprises an in-hole supporting plate 30, a movable frame 31, a tooth block 32, a third gear 33, a connecting seat 34 and a third hydraulic telescopic rod 35, wherein the three in-hole supporting plates 30 are movably arranged on the outer side of a connecting shaft sleeve 4, the in-hole supporting plate 30 slides towards the three sides far away from the connecting shaft sleeve 4 and can be in contact with the inner wall of a drill hole so as to realize the support of the inner wall of the drill hole, the movable frame 31 is slidably arranged in the connecting shaft sleeve 4, the movable frame 31 is of an arc-shaped frame structure, the tooth block 32 is uniformly and fixedly arranged in the movable frame 31, a third gear 33 meshed with the tooth block 32 is rotatably arranged in the connecting shaft sleeve 4, the third gear 33 is driven by an external servo motor and is electrically connected with an external controller, the connecting seat 34 is fixedly arranged on the movable frame 31, the connecting seat 34 can be driven to synchronously move when the movable frame 31 moves up and down, the third hydraulic telescopic rod 35 is fixedly arranged at the positions of the two sides of the outer wall of the connecting seat 34, which are close to the inner wall of the in-hole supporting plate 30, and the third hydraulic telescopic rod 35 is connected with the in-hole supporting plate 30 through a locking component; through being provided with downthehole supporting mechanism 9, after the sample bore section of thick bamboo 5 unblock, the downthehole extension 30 of third hydraulic telescoping rod drive three is outside to open, downthehole supporting mechanism 9 and the contact of drilling inner wall, and third gear 33 rotates under the peripheral hardware servo motor drive and through with tooth piece 32 meshing drive movable frame 31 downwardly moving in the downthehole extension 30 of downthehole portion of downthehole removal of drive, guarantees downthehole extension 30 movable to drilling bottom position and supports the pore wall.

As a technical optimization scheme of the horizontal well geosteering equipment, the locking assembly comprises a locating clip 36, an inserting plate 37, an extension frame 38, a registration bar 47, a fourth hydraulic telescopic rod 48 and an anti-falling pin 49; the locating clamp 36 is movably arranged on one side of the support plate 30 in the hole, which is close to the connecting shaft sleeve 4, the cross section of the locating clamp 36 is in a frame shape, the bottom of the locating clamp 36 is arc-shaped, a connecting port for installing the locating clamp 36 is formed in the support plate 30 in the hole, a plugboard 37 for connecting the locating clamp 36 is movably arranged on the outer wall of the connecting seat 34, an extension frame 38 for connecting the plugboard 37 is movably arranged on the outer wall of the connecting seat 34, a third hydraulic telescopic rod 35 for driving the extension frame 38 is fixedly arranged on the connecting seat 34, the extension frame 38 drives the plugboard 37 to slide into the locating clamp 36, the locking operation of the support plate 30 in the hole and the connecting shaft sleeve 4 can be realized by matching with the locating clamp 36, a locating strip 47 is fixedly arranged on the plugboard 37, a movable opening matched with the locating strip 47 is formed in the inner wall of the locating clamp 36, a drop-preventing pin 49 is movably arranged on the locating strip 47, the cross section of the drop-preventing pin 49 is hexagonal, the inner wall of the movable opening is provided with a drop-preventing pin 49 matched with the drop-preventing pin 49, the drop-preventing pin 49 is matched with the drop-preventing pin 49, the drop-preventing pin 49 can be matched with the fourth hydraulic telescopic rod is arranged on the connecting rod 48, and the fourth hydraulic telescopic rod is fixedly connected with the locating rod 48, and the fourth telescopic rod is used for realizing the drop-preventing the installation of the drop-preventing pin 49 and the drop-preventing pin, and the drop-preventing pin is matched with the fourth, and connected with the drop-preventing pin, and the drop-preventing rod is matched with the plug; through being provided with the structure, downthehole extension board 30 moves to the drilling bottom position and supports the pore wall, fourth hydraulic telescoping rod 48 drive anticreep round pin 49 and locating clip 36 separation, locating clip 36 and picture peg 37 unblock, third hydraulic telescoping rod 35 drive locating clip 36 moves the withdrawal to the inside of connecting sleeve 4, connecting sleeve 4 and downthehole extension board 30 unblock, peripheral hardware hydraulic cylinder drive movable frame 2 upwards move and drive connecting sleeve 4 and sampling drill section of thick bamboo 5 break away from the drilling inside, at the in-process that sampling drill section of thick bamboo 5 upwards moved, sampling drill section of thick bamboo 5 and locating clip 36 contact each other, the extrusion that locating clip 36 received sampling drill section of thick bamboo 5 moves to soil layer inside one side, after sampling drill section of thick bamboo 5 moved to the drilling outside, remove equipment and break up stone and rock layer.

As a technical optimization scheme of the horizontal well geosteering equipment, the locking assembly further comprises a mounting sleeve 39, a touch block 40, a contact sensor 41, a second spring 46 and a pressure sensor 50, wherein the mounting sleeve 39 is fixedly arranged on the support plate 30 in a hole, the mounting sleeve 39 is of a hollow structure, the cross section of an inner cavity of the mounting sleeve 39 is trapezoid, the touch block 40 is movably arranged in the mounting sleeve 39, a movable seat for connecting the touch block 40 is movably arranged in the mounting sleeve 39, the movable seat is driven by an electric telescopic rod, a second spring 46 for connecting the touch block 40 is fixedly arranged on the movable seat in the mounting sleeve 39, one end of the second spring 46 is fixedly connected with the touch block 40, a short shaft for positioning the second spring 46 is fixedly arranged on the movable seat, the short shaft is sleeved with the second spring 46, the contact sensor 41 (MT-RB-B-T-V) is fixedly arranged on one side of the extension frame 38 close to the touch block 40, the contact sensor 41 can be mutually contacted with the touch block 40, the contact sensor 41 is electrically connected with a controller, and the pressure sensor 50 (CAF-12) is fixedly arranged on one side of the external control clamp 36 which is fixedly arranged on the external clamp 36; through being provided with the structure, when the sampling drill stem 5 is pulled out upwards, the touch block 40 moves to the outside of the installation sleeve 39 under the driving of the external electric telescopic rod, when the sampling drill stem 5 is pushed for sampling again, the connecting shaft sleeve 4 is pushed downwards, in the pushing process of the connecting shaft sleeve 4, when the contact sensor 41 is in contact with the touch block 40, the alignment is completed, the third hydraulic telescopic rod 35 drives the inserting plate 37 to extend outwards to enter the inside of the positioning clamp 36, when the inserting plate 37 is pushed into the inside of the positioning clamp 36, the alignment bar 47 enters the inside of the movable opening, when the pressure sensor 50 is in contact with the inner wall of the movable opening and senses pressure change, the fourth hydraulic telescopic rod 48 starts to drive the anti-release pin 49 to clamp with the positioning clamp 36, the positioning clamp 36 is locked with the inserting plate 37, after locking, the third hydraulic telescopic rod 35 drives the inserting plate 37 to move to pull the in-hole supporting plate 30 to reset through cooperation with the positioning clamp 36, then the external servo motor drives the third gear 33 to reversely rotate to move the movable frame 31 to move upwards to drive the in-hole supporting plate 30 to reset, and after resetting, and subsequent sampling operation is continued.

As a technical optimization scheme of the horizontal well geosteering equipment, an outer connecting plate 42 is movably arranged on an in-hole support plate 30, the outer connecting plate 42 is fixedly connected with a positioning clamp 36, a notch for accommodating the outer connecting plate 42 is formed in the in-hole support plate 30, cone inserting blocks 43 are uniformly and fixedly arranged on the outer connecting plate 42, the cone inserting blocks 43 are of conical structures, and the cone inserting blocks 43 can be inserted into soil layers to improve the stability of the outer connecting plate 42 when supported; through being provided with the structure, after connecting axle sleeve 4 and downthehole extension board 30 unblock, sampling bore section of thick bamboo 5 upwards move and break away from inside the sample hole, at the in-process that sampling bore section of thick bamboo 5 upwards moved, sampling bore section of thick bamboo 5 and locating clip 36 contact each other, and locating clip 36 received the extrusion of sampling bore section of thick bamboo 5 and moved to the inside one side of soil layer, and external connection board 42 and awl inserted block 43 insert in the soil layer under the promotion of locating clip 36 to carry out stable operation to downthehole extension board 30.

As a technical optimization scheme of the horizontal well geosteering equipment, a telescopic rod 45 is fixedly arranged on the connecting shaft sleeve 4 corresponding to the position of the support plate 30 in the hole, a positioning strip 44 is fixedly arranged on the telescopic end of the telescopic rod 45, a positioning groove movably connected with the positioning strip 44 is formed on the support plate 30 in the hole, and the positioning strip 44 is movably arranged in the positioning groove; by providing the above structure, the positioning bar 44 can perform alignment operation on the connecting sleeve 4 and the in-hole support plate 30 when the sampling drill drum 5 advances sampling again.

When the device is used, before geological sampling, the device is moved integrally to a position to be sampled, the movable frame 2 moves downwards, the driving motor 3 drives the connecting shaft sleeve 4 to drive the sampling drill drum 5 to rotate and drill into the ground, and when the sampling drill drum 5 is pushed downwards, sample soil enters the sampling drill drum 5 to perform sampling operation;

in the sampling process, the driving motor 3 drives the connecting shaft sleeve 4 to rotate, the synchronous first gear 12 rotates along with the connecting shaft sleeve 4, the synchronous first gear 12 drives the movable shaft 15 to rotate by being meshed with the second gear 14, the movable shaft 15 rotates to drive the movable ball 18 to do circular motion, the faster the rotating speed of the movable ball 18 is, the larger the pulling force borne by the tension sensor 16 is, the slower the rotating speed of the movable ball 18 is, the smaller the pulling force borne by the tension sensor 16 is, if the sampling is carried out, if the sampling encounters a large stone or rock layer which is difficult to crush, the sampling drill barrel 5 is blocked, the drilling speed is slowed down and kept to rotate at a low speed continuously, at the moment, the rotating speed of the movable ball 18 is slowed down, the tension sensor 16 senses that the pulling force is reduced to a low value (the low value is the pulling force value corresponding to the tension sensor 16 when the sampling drill barrel 5 is reduced to 50-100r/min from 200-400 r/min), meanwhile, when the second gear 14 rotates at a low speed, the shifting block 19 on the movable shaft 15 is contacted with the extruding block 21, the extruding block 21 is acted by the shifting block 19 to extrude the counter 23, the counter 23 counts the rotation number of the sampling drill drum 5 from the reduction of the rotation speed, the tension sensor 16 senses the reduction of the rotation speed of the sampling drill drum 5, and the counter 23 counts the rotation number of the sampling drill drum 5 at the reduction of the rotation speed to reflect the duration of the low-speed rotation of the sampling drill drum 5, when the rotation speed of the sampling drill drum 5 is reduced from 200 r/min to 400r/min to 100r/min for 3s or more, the sampling drill drum 5 is contacted with hard stone or rock layer which is difficult to break when being pushed down, the tension sensor 16 is matched with the counter 23 to detect the stone and rock layer, the problem that misjudgment occurs when the rotation speed of the sampling drilling barrel 5 is slower during the initial start of the equipment in single use is avoided;

when a hard stone or a rock layer is detected, the controller controls the second hydraulic telescopic rod 29 to start the driving positioning block 28 to be separated from the clamping block 26, the mounting shaft 24 is unlocked from the external sleeve 25, and the sampling drill barrel 5 is not continuously driven to rotate when the driving motor 3 continuously rotates, so that the sampling drill barrel 5 is not kept rotating and is contacted with the hard stone or the rock layer, and the sampling drill barrel 5 is protected;

after the sampling drill cylinder 5 is unlocked, the third hydraulic telescopic rod 35 drives the three support plates 30 in the holes to open outwards, the supporting mechanism 9 in the holes is contacted with the inner wall of the holes, the third gear 33 is driven by the external servo motor to rotate and drives the movable frame 31 to move downwards to drive the support plates 30 in the holes to move downwards in the holes by being meshed with the tooth blocks 32, the support effect of the support plates 30 in the holes is ensured by the support plates 30 in the holes being supported by the walls of the holes at the positions of the bottoms of the holes, then the fourth hydraulic telescopic rod 48 drives the anti-falling pins 49 to be separated from the positioning clamps 36, the positioning clamps 36 are unlocked from the plugboards 37, the third hydraulic telescopic rod 35 drives the positioning clamps 36 to move and retract towards the inside of the connecting shaft sleeve 4, the connecting shaft sleeve 4 is unlocked from the support plates 30 in the holes, the external hydraulic cylinder drives the movable frame 2 to move upwards to drive the connecting shaft sleeve 4 and the sampling drill cylinder 5 to be separated from the inside the holes, in the process that the sampling drill stem 5 moves upwards, the sampling drill stem 5 and the positioning clamp 36 are in contact with each other, the positioning clamp 36 is extruded by the sampling drill stem 5 to move to one side of the inside of the soil layer, the outer connecting plate 42 and the cone insert 43 are inserted into the soil layer under the pushing of the positioning clamp 36 so as to perform stable operation on the in-hole support plate 30, when the sampling drill stem 5 moves out of a drilled hole, the first hydraulic telescopic rod 10 drives the positioning seat 6 to lift upwards, the depth of downward drilling of the sampling drill stem 5 is not fixed due to the unfixed positions of the hard stone and the rock layer during drilling sampling, when the hole wall is supported by the in-hole support plate 30, the situation that the upper part of the in-hole support plate 30 is positioned inside the sampling hole and the part of the in-hole support plate 30 is positioned outside the sampling hole is likely to occur, the part of the in-hole support plate 30 extending to the outside of the sampling hole at the moment can influence the movement of equipment, after the sampling drill stem 5 moves out of the sampling hole, the first hydraulic telescopic rod 10 drives the positioning seat 6 to be lifted upwards, equipment is removed after the positioning seat is lifted to a certain height, after stone breaking equipment is replaced, stone layers in the sampling holes are broken, the equipment is moved to the positions of the sampling holes again, and the sampling drilling barrel 5 is moved downwards to the inside of the sampling holes;

when the sampling drill drum 5 is pulled out upwards, the touch block 40 moves to the outside of the mounting sleeve 39 under the driving of the external electric telescopic rod, when the sampling drill drum 5 is pushed for sampling again, the positioning strip 44 can align the connecting shaft sleeve 4 with the locating clamp 36, the connecting shaft sleeve 4 is pushed downwards, when the touch sensor 41 is contacted with the touch block 40 in the pushing process of the connecting shaft sleeve 4, the alignment is completed, the third hydraulic telescopic rod 35 drives the inserting plate 37 to extend outwards to enter the locating clamp 36, when the inserting plate 37 is pushed into the locating clamp 36, the alignment strip 47 enters the inside of the movable opening, when the pressure sensor 50 is contacted with the inner wall of the movable opening and senses pressure change, the fourth hydraulic telescopic rod 48 starts to drive the anti-dropping pin 49 to clamp the locating clamp 36, the locating clamp 36 is locked with the inserting plate 37, after locking, the third hydraulic telescopic rod 35 drives the inserting plate 37 to move to pull the locating clamp 36 to reset the in a hole, then the external servo motor drives the third gear 33 to reversely rotate to move to match with the tooth block 32 to mesh with the driving movable frame 31 to move up to drive the locating plate 30 to reset, and then the sampling operation is continued.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (9)

1. The utility model provides a horizontal well geosteering equipment, includes movable supporting seat (1), movable mounting has movable frame (2) on movable frame (1), and fixed mounting has driving motor (3) on movable frame (2), and the one end of the output shaft of driving motor (3) is connected with connecting sleeve (4), and the bottom fixed mounting of connecting sleeve (4) has a sampling drill section of thick bamboo (5), its characterized in that: the output shaft of driving motor (3) has detection trigger mechanism (7), connecting axle sleeve (4) are connected with the output shaft interconnect of driving motor (3) through connecting taking off axle mechanism (8), be connected with downthehole supporting mechanism (9) on connecting axle sleeve (4), the position movable mounting that corresponds sample on movable supporting seat (1) bore section of thick bamboo (5) has positioning seat (6), the both sides fixed mounting of positioning seat (6) has fly leaf (11), fixed mounting has two sets of first hydraulic telescoping rod (10) that are used for driving fly leaf (11) on movable supporting seat (1), the flexible end of first hydraulic telescoping rod (10) and the bottom fixed connection of fly leaf (11).

2. A horizontal well geosteering apparatus as defined in claim 1, wherein: the detection triggering mechanism (7) comprises a first gear (12), an external box (13), a second gear (14), a movable shaft (15), a tension sensor (16), a pull rope (17) and a movable ball (18), wherein the first gear (12) is fixedly installed on the outer wall of an output shaft of the driving motor (3), the external box (13) is fixedly installed at the bottom of the driving motor (3), the second gear (14) meshed with the first gear (12) is rotatably installed in the external box (13), the movable shaft (15) for connecting the second gear (14) is rotatably installed in the external box (13), the movable shaft (15) is fixedly connected with the second gear (14), the tension sensor (16) is fixedly installed on the outer wall of the movable shaft (15), the pull rope (17) is fixedly installed on the tension sensor (16), and the movable ball (18) is fixedly installed on one end, far away from the tension sensor (16), of the pull rope (17).

3. A horizontal well geosteering apparatus as defined in claim 2, wherein: the detection triggering mechanism (7) further comprises a shifting block (19), a fixed frame (20), an extrusion block (21), a first spring (22) and a counter (23), wherein the shifting block (19) is fixedly installed on the movable shaft (15), the fixed frame (20) is fixedly installed on one side of the inside of the external box (13), the counter (23) is fixedly installed inside the fixed frame (20), the extrusion block (21) is movably installed inside the fixed frame (20), one side wall surface of the extrusion block (21) close to the movable shaft (15) is arc-shaped, the first spring (22) for connecting the extrusion block (21) is fixedly installed inside the fixed frame (20), and one end of the first spring (22) is fixedly connected with the extrusion block (21).

4. A horizontal well geosteering apparatus as defined in claim 1, wherein: the connecting and disconnecting mechanism (8) comprises a mounting shaft (24), an external sleeve (25), a clamping block (26), a positioning ring plate (27), a positioning block (28) and a second hydraulic telescopic rod (29); the installation axle (24) fixed mounting is in the bottom of the output shaft of driving motor (3), external cover (25) fixed mounting for connecting installation axle (24) is on connecting axle sleeve (4), external cover (25) and installation axle (24) swing joint, be used for connecting the location round bar (27) fixed mounting of external cover (25) on installation axle (24), location round bar (27) movable mounting is in the inside of external cover (25), clamping block (26) even fixed mounting is in the inner wall of external cover (25), three locating piece (28) movable mounting is in the inside of installation axle (24), be used for the second hydraulic telescoping rod (29) fixed mounting of drive locating piece (28) in the inside of installation axle (24).

5. A horizontal well geosteering apparatus as defined in claim 1, wherein: the in-hole supporting mechanism (9) comprises an in-hole supporting plate (30), a movable frame (31), a tooth block (32), a third gear (33), a connecting seat (34) and a third hydraulic telescopic rod (35), wherein the three in-hole supporting plates (30) are movably mounted on the outer side of a connecting shaft sleeve (4), the movable frame (31) is slidably mounted in the connecting shaft sleeve (4), the tooth block (32) is uniformly and fixedly mounted in the movable frame (31), the third gear (33) meshed with the tooth block (32) is rotatably mounted in the connecting shaft sleeve (4), the connecting seat (34) is fixedly mounted on the movable frame (31), the third hydraulic telescopic rod (35) is fixedly mounted on two sides of the outer wall of the connecting seat (34) and is close to the position of the in-hole supporting plate (30), and the third hydraulic telescopic rod (35) is connected with the in-hole supporting plate (30) through a locking assembly.

6. A horizontal well geosteering apparatus as defined in claim 5, wherein: the locking assembly comprises a locating clamp (36), a plugboard (37), an extension frame (38), an alignment bar (47), a fourth hydraulic telescopic rod (48) and an anti-falling pin (49); the locating clamp (36) is movably mounted on one side, close to the connecting shaft sleeve (4), of the supporting plate (30) in the hole, the bottom of the locating clamp (36) is arc-shaped, a connecting port for mounting the locating clamp (36) is formed in the supporting plate (30) in the hole, the inserting plate (37) for connecting the locating clamp (36) is movably mounted on the outer wall of the connecting seat (34), the extending frame (38) for connecting the inserting plate (37) is movably mounted on the outer wall of the connecting seat (34), the third hydraulic telescopic rod (35) for driving the extending frame (38) is fixedly mounted on the connecting seat (34), the aligning strip (47) is fixedly mounted on the inserting plate (37), a movable port matched with the aligning strip (47) is formed in the inner wall of the locating clamp (36), a bayonet matched with the anti-disengaging pin (49) is formed in the inner wall of the movable port, and the fourth hydraulic telescopic rod (48) for driving the anti-disengaging pin (49) is fixedly mounted on the aligning strip (47).

7. A horizontal well geosteering apparatus as defined in claim 6, wherein: the locking assembly further comprises a mounting sleeve (39), a touch block (40), a contact sensor (41), a second spring (46) and a pressure sensor (50), wherein the mounting sleeve (39) is fixedly mounted on the support plate (30) in the hole, the touch block (40) is movably mounted in the mounting sleeve (39), a movable seat used for connecting the touch block (40) is movably mounted in the mounting sleeve (39), the movable seat is driven by an electric telescopic rod, the second spring (46) used for connecting the touch block (40) is fixedly mounted on the movable seat in the mounting sleeve (39), one end of the second spring (46) is fixedly connected with the touch block (40), a short shaft used for positioning the second spring (46) is fixedly mounted on the movable seat, the short shaft is sleeved with the second spring (46), the contact sensor (41) is fixedly mounted on one side, close to the touch block (40), of the extension frame (38), and the pressure sensor (50) is fixedly mounted on one side, extending towards the inside the positioning clamp (36), of the positioning strip (47).

8. A horizontal well geosteering apparatus as defined in claim 5, wherein: an outer connecting plate (42) is movably mounted on the hole inner support plate (30), the outer connecting plate (42) is fixedly connected with the positioning clamp (36), a notch for accommodating the outer connecting plate (42) is formed in the hole inner support plate (30), and cone inserting blocks (43) are uniformly and fixedly mounted on the outer connecting plate (42).

9. A horizontal well geosteering apparatus as defined in claim 5, wherein: the telescopic support is characterized in that a telescopic rod (45) is fixedly arranged at the position, corresponding to the support plate (30) in the hole, on the connecting shaft sleeve (4), a positioning strip (44) is fixedly arranged at the telescopic end of the telescopic rod (45), a positioning groove movably connected with the positioning strip (44) is formed in the support plate (30) in the hole, and the positioning strip (44) is movably arranged in the positioning groove.