CN217055143U

CN217055143U - Coal bed gas drilling geological guiding device

Info

Publication number: CN217055143U
Application number: CN202220689476.0U
Authority: CN
Inventors: 刘国卫; 郭增付; 范钦明; 秦红涛; 胥帅帅; 付财; 栗志波; 王昊
Original assignee: Henan Yuzhong Geological Exploration Engineering Co ltd
Current assignee: Henan Yuzhong Geological Exploration Engineering Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-26
Anticipated expiration: 2032-03-28

Abstract

The utility model relates to an energy exploitation technical field, and a coal bed gas drilling geology guider is disclosed, including the drill bit, the cavity has been seted up to the inside of drill bit, the inside slip of cavity is equipped with the movable block, the multiunit recess has been seted up to the lateral wall of drill bit, the inside of every recess all slides and is equipped with the sampling head, the equal fixedly connected with T shape pole of two sampling head looks one end of homonymy, the pole wall of every T shape pole all with the tank bottom sliding connection of homonymy recess, the equal fixedly connected with extrusion piece of two T shape pole looks one end of homonymy, every T shape pole is close to all to fix jointly between the lateral wall of homonymy sampling head one side and the chamber wall of cavity and is equipped with reset spring, the drill bit is connected with cable mechanism with the movable block jointly. This application can carry out the soil layer sample at the in-process of well drilling, and can ensure that the sample is effective to can once only carry out the sample on multiunit soil layer, the simple operation simultaneously, stability is high.

Description

Coal bed gas drilling geological guiding device

Technical Field

The application relates to the technical field of energy exploitation, in particular to a coal bed gas drilling geological guiding device.

Background

In the technical field of exploration and development of petroleum and natural gas, implementation of horizontal well drilling is an important technical means for improving the exposure rate of hydrocarbon reservoirs and increasing the yield of a single well, and along with rapid development of logging-while-drilling technology, the horizontal well drilling method is widely applied to the drilling process of the horizontal well.

The Chinese patent publication No. CN212513702U discloses a horizontal well geosteering device, which comprises a fixed seat, wherein the top of the fixed seat is fixedly provided with two fixed columns, the tops of the two fixed columns are fixedly provided with the same fixed plate, the fixed seat is provided with a fixed hole, a drill bit is arranged in the fixed hole, the bottom of the fixed plate is fixedly provided with a drilling machine, the top end of the drill bit extends to the upper part of the fixed seat and is fixedly connected with an output shaft of the drilling machine, the drill bit is provided with a sliding groove, and two sampling boxes with openings on one side are slidably arranged in the sliding groove; it is through the in-process at the well drilling, carry out the geology sampling to improve high-quality reservoir and bore the chance rate, but in actual use, it is earlier through the compression to the spring, then sample through the resilience of spring, when meetting the harder soil layer of some geology, because the elastic stretch performance of spring, the phenomenon of unsuccessful sampling easily appears in this kind of sampling method, and its sampling that can only carry out once at every turn, overall efficiency is lower, the result of use is relatively poor, consequently, provide a coal bed gas well drilling geology guider.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aim at through the compression to the spring earlier in solving prior art, then take a sample through the resilience of spring, when meetting the harder soil layer of some geology, because the elastic expansion performance of spring, the phenomenon of unsuccessful sampling easily appears in this kind of sampling method, and it can only carry out once sampling at every turn, and overall efficiency is lower, the relatively poor problem of result of use, and the coal bed gas well drilling geology guider who provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a coal bed gas drilling geology guider, includes the drill bit, the cavity has been seted up to the inside of drill bit, the inside slip of cavity is equipped with the movable block, the multiunit recess has been seted up to the lateral wall of drill bit, every the inside of recess all slides and is equipped with the sampling head, two of homonymy the equal fixedly connected with T shape pole of the opposite end of sampling head, every the pole wall of T shape pole all with the tank bottom sliding connection of homonymy recess, two of homonymy the equal fixedly connected with of the opposite end of T shape pole extrudees the piece, every all the fixed reset spring that is equipped with jointly between the lateral wall that T shape pole is close to homonymy sampling head one side and the chamber wall of cavity, the drill bit is connected with cable mechanism with the movable block jointly.

Preferably, the inhaul cable mechanism comprises fixed blocks fixedly arranged at the upper ends of two side walls of the different sides of the sampling head, the fixed blocks are arranged in a hollow mode, one of the fixed blocks is provided with an upper winding roller in a rotating mode, the other fixed block is provided with a lower winding roller in a rotating mode, an upper inhaul cable is wound and wound on the roller wall of the upper winding roller, a lower inhaul cable is wound and wound on the roller wall of the lower winding roller, a through wire hole is formed between the fixed blocks and two cavity walls of the cavity, and one end, far away from the fixed blocks at the same side, of the upper inhaul cable and the lower inhaul cable penetrates through the corresponding through wire holes and is fixedly connected with the upper end and the lower end of the moving block respectively.

Preferably, two the common fixedly connected with connecting box of terminal surface of fixed block, the roller of going up winding up roller and lower winding up roller all rotates with the lateral wall of connecting box to be connected, the roller that goes up winding up roller and lower winding up roller is located the inside one end of connecting box and all fixedly cup joints the worm wheel, the inside of connecting box is rotated and is equipped with the worm, the worm meshes with two worm wheels mutually and is connected.

Preferably, the lower side in the cavity is rotatably provided with a directional wheel, and the side wall of the lower pull rope penetrates through the lower side wheel wall of the directional wheel.

Preferably, the upper side wall and the lower side wall of each extrusion block are oppositely and obliquely arranged.

Preferably, two side walls of the different side of the moving block are fixedly connected with guide rail blocks, and two cavity walls of the different side of the cavity are provided with guide rail grooves matched with the guide rail blocks.

Compared with the prior art, the application provides a coal bed gas well drilling geosteering device, possesses following beneficial effect:

1. this coal bed gas drilling geology guider through the drill bit that is equipped with, can regard as the well drilling to use, through a plurality of sampling heads, movable block, a plurality of T shape pole, a plurality of extrusion piece and a plurality of reset spring's that are equipped with mutually supporting, can ensure through the rigid extrusion of movable block that the sample is effective, and can once only carry out the sample on multiunit soil layer, improve holistic efficiency and result of use.

2. This coal bed gas drilling geological guiding device, through two fixed blocks that are equipped with, go up the winding up roller, lower winding up roller, go up cable and down cable mutually support, the extrusion or the extrusion that descends of the rising that can be convenient for stimulate the movable block, through the connecting box that is equipped with, mutually supporting of two worm wheels and worm, can make the work of winding up roller and lower winding up roller unified, only need alone the operation can, it is convenient to use, and utilize worm gear's auto-lock performance, can improve holistic stability.

The device in not relate to the part all the same with prior art or can adopt prior art to realize, this application can carry out the soil layer sample at the in-process of well drilling, and can ensure that the sample is effective to can once only carry out the sample on multiunit soil layer, the simple operation simultaneously, stability is high.

Drawings

FIG. 1 is a schematic structural diagram of a coal bed methane well drilling geosteering device according to the present disclosure;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

fig. 3 is a schematic top view of the connection structure of two fixing blocks in fig. 1.

In the figure: 1. a drill bit; 2. a moving block; 3. a sampling head; 4. a T-shaped rod; 5. extruding the block; 6. a return spring; 7. a fixed block; 8. winding on a roller; 9. a lower winding roller; 10. pulling up a cable; 11. pulling down a cable; 12. a connection box; 13. a worm gear; 14. a worm; 15. a directional wheel; 16. a guide rail block.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments.

Referring to fig. 1-3, a coalbed methane well drilling geology guider, including drill bit 1, the cavity has been seted up to the inside of drill bit 1, the inside slip of cavity is equipped with movable block 2, the multiunit recess has been seted up to the lateral wall of drill bit 1, the inside of every recess all slides and is equipped with sampling head 3, the equal fixedly connected with T shape pole 4 of the equal one end in opposite directions of two sampling heads 3 of homonymy, the pole wall of every T shape pole 4 all with the tank bottom sliding connection of homonymy recess, the equal fixedly connected with extrusion piece 5 of the equal one end in opposite directions of two T shape poles 4 of homonymy, all fixed reset spring 6 that is equipped with jointly between the lateral wall that every T shape pole 4 is close to homonymy sampling head 3 one side and the chamber wall of cavity, drill bit 1 is connected with cable mechanism with movable block 2 jointly.

The inhaul cable mechanism comprises fixed blocks 7 fixedly arranged at the upper ends of two side walls on the opposite sides of the sampling head 3, the inner parts of the two fixed blocks 7 are both arranged in a hollow way, an upper winding roller 8 is rotatably arranged inside one of the fixed blocks 7, a lower winding roller 9 is rotatably arranged inside the other fixed block 7, an upper stay cable 10 is wound and wound on the roller wall of the upper winding roller 8, a lower stay cable 11 is wound and wound on the roller wall of the lower winding roller 9, through holes are jointly formed between the two fixed blocks 7 and two cavity walls of the cavity, one ends of the upper stay cable 10 and the lower stay cable 11, which are far away from the fixed blocks 7 on the same side, penetrate through the corresponding through holes and are fixedly connected with the upper end and the lower end of the movable block 2 respectively, when the upper winding roller 8 rotates, the upper cable 10 is unfolded, the lower winding roller 9 rotates at the moment, the lower cable 11 can be wound, therefore, the moving block 2 can be pulled to move downwards, otherwise, the moving block 2 can be pulled to move upwards, and the use is convenient.

The common fixedly connected with connecting box 12 of terminal surface of two fixed blocks 7, the roller of going up winding up roller 8 and winding up roller 9 down all rotates with the lateral wall of connecting box 12 to be connected, the roller of going up winding up roller 8 and winding up roller 9 down is located the inside one end of connecting box 12 and has all fixedly cup jointed worm wheel 13, the inside of connecting box 12 is rotated and is equipped with worm 14, worm 14 meshes with two worm wheel 13 and is connected, through rotating worm 14, can make two worm wheel 13 rotate simultaneously, thereby can make 8 grades of winding up roller 9 of going up winding up roller rotate simultaneously, accomplish the lift removal to movable block 2, can make the work of going up winding up roller 8 and winding up roller 9 down unified, only need one-man operation can, convenient and fast to use, and utilize worm wheel 13, worm 14's auto-lock performance, can improve holistic stability, worm wheel 13, worm 14's auto-lock performance is present technique, do not make too much neoplasms.

The inside downside rotation of cavity is equipped with directional wheel 15, and the lateral wall of guy cable 11 passes the downside wheel wall setting of directional wheel 15, through directional wheel 15, can ensure when guy cable 11 pulling movable block 2, can make movable block 2 smooth and easy normal decline.

The upper side wall and the lower side wall of each extrusion block 5 are arranged in an opposite inclined mode, and through the arrangement, when the moving block 2 is in contact with the extrusion blocks 5, the inclined edges of the extrusion blocks 5 can be smoothly extruded, so that smooth extrusion is ensured.

Two lateral walls of the different side of movable block 2 all fixedly connected with guide rail piece 16, and two chamber walls of the different side of cavity all offer with guide rail piece 16 assorted guide rail groove, through guide rail piece 16 cooperation guide rail groove, can improve the stability of movable block 2 at the inside removal of cavity.

In this application, during the use, can drill the well through drill bit 1, when the brill moves certain degree of depth, control movable block 2 moves down this moment, movable block 2 can be prior to two extrusion piece 5 contacts of the top, thereby can extrude two extrusion pieces 5, so that two extrusion pieces 5 move to opposite one side, thereby can drive two sampling heads 3 ejecting through two T shape poles 4, and sample to the soil layer, then movable block 2 continues to move down, and break away from two sampling heads 3 of the top, under two reset spring 6's effect, can make two T shape poles 4 drive two sampling heads 3 and reset, accomplish the sample, then continue to control drill bit 1 well, continue to bore after establishing certain degree of depth, make movable block 2 continue to move down, then accomplish the sample work of multiunit sampling head 3 in proper order can.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. A geological guiding device for coal bed gas drilling comprises a drill bit (1) and is characterized in that, a cavity is arranged inside the drill bit (1), a moving block (2) is arranged inside the cavity in a sliding manner, the side wall of the drill bit (1) is provided with a plurality of groups of grooves, each groove is internally provided with a sampling head (3) in a sliding manner, one opposite ends of the two sampling heads (3) on the same side are fixedly connected with T-shaped rods (4), the rod wall of each T-shaped rod (4) is slidably connected with the groove bottom of the groove on the same side, one opposite ends of the two T-shaped rods (4) on the same side are fixedly connected with extrusion blocks (5), a reset spring (6) is fixedly arranged between the side wall of one side, close to the sampling head (3) on the same side, of each T-shaped rod (4) and the cavity wall of the cavity together, the drill bit (1) and the moving block (2) are connected with a guy cable mechanism together.

2. The coal bed methane drilling geosteering device of claim 1, the inhaul cable mechanism comprises fixed blocks (7) fixedly arranged at the upper ends of two side walls on different sides of the sampling head (3), the two fixed blocks (7) are both arranged in a hollow manner, wherein an upper winding roller (8) is rotatably arranged inside one of the fixed blocks (7), a lower winding roller (9) is rotatably arranged inside the other fixed block (7), an upper inhaul cable (10) is wound and wound on the roller wall of the upper winding roller (8), a lower inhaul cable (11) is wound and wound on the roller wall of the lower winding roller (9), through-wire holes are formed between the two fixing blocks (7) and the two cavity walls of the cavity together, one end of the upper pull cable (10) and one end of the lower pull cable (11) far away from the fixing block (7) on the same side penetrate through the corresponding through hole and are fixedly connected with the upper end and the lower end of the moving block (2) respectively.

3. The coal bed gas drilling geological guiding device as claimed in claim 2, characterized in that the end faces of the two fixed blocks (7) are fixedly connected with a connecting box (12) together, the roll shafts of the upper winding roller (8) and the lower winding roller (9) are rotatably connected with the side wall of the connecting box (12), the ends, located inside the connecting box (12), of the roll shafts of the upper winding roller (8) and the lower winding roller (9) are fixedly sleeved with worm gears (13), the inside of the connecting box (12) is rotatably provided with a worm (14), and the worm (14) is meshed with the two worm gears (13).

4. The device for guiding the geology of coal bed gas drilling well according to the claim 2, characterized in that the inner lower side of the cavity is provided with a directional wheel (15) in a rotating way, and the side wall of the down-pulling cable (11) is arranged through the lower side wheel wall of the directional wheel (15).

5. The device for guiding the geology of the coal bed gas drilling well according to the claim 1, characterized in that the upper and the lower side walls of each extrusion block (5) are arranged in an opposite inclined way.

6. The coal bed gas drilling geological guide device according to claim 1, characterized in that two side walls of the moving block (2) at different sides are fixedly connected with guide rail blocks (16), and two cavity walls at different sides of the cavity are provided with guide rail grooves matched with the guide rail blocks (16).