CN211974921U

CN211974921U - Logging instrument

Info

Publication number: CN211974921U
Application number: CN202020528162.3U
Authority: CN
Inventors: 王基渊; 赵玺; 何润泽; 高万德
Original assignee: Northwest Geological Exploration Institute Of China Metallurgical Geology Bureau
Current assignee: Northwest Geological Exploration Institute Of China Metallurgical Geology Bureau
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-20
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a logging instrument relates to sinking technical field. It is including being columniform logging instrument body, the open end of well drilling is provided with fixed baseplate, fixed baseplate includes the inscription sleeve with the laminating of well drilling open end inner wall, be connected and the level sets up at the fixed plate of well drilling top surface, vertical setting at the fixed plate top surface and with the coaxial solid fixed cylinder of well drilling with inscription sleeve top, the internal diameter of inscription sleeve, solid fixed cylinder all is greater than the external diameter of logging instrument, the solid fixed cylinder level runs through the tight screw rod of supporting that has a plurality of threaded connection, the one end that supports tight screw rod and be located solid fixed cylinder is connected with and supports tight board, support the axis that tight screw rod encircles the setting around the well drilling, the logging instrument is equipped with the drive assembly that drives its removal along vertical direction. The utility model has the advantages of can avoid and the well drilling between bump.

Description

Logging instrument

Technical Field

The utility model belongs to the technical field of the sinking technique and specifically relates to a logging instrument is related to.

Background

The logging instrument is used in well drilling field, and can scan well wall continuously and horizontally to give well vertical section, horizontal section, effective section and inclined distance. The logging result can be directly displayed by a computer screen or can be given by a printer of a plotter, and the use is flexible and convenient. The use of the logging instrument can prevent the shaft from deflecting, reduce the construction period, accelerate the construction progress, ensure the engineering quality, and has obvious indirect economic benefit and remarkable social benefit. There are many varieties of logging tools on the market, including sinking, ultrasonic, nuclear, and digital coring tools, among others.

Chinese utility model patent with publication number CN205400715U discloses a logging instrument, which comprises a power module and an electronic circuit control module, wherein the power module and the electronic circuit control module are integrated into a whole. When the logging instrument is used, the logging instrument needs to be placed into a well in a manual mode, and the measurement can be started when the logging instrument is stable.

The prior art solutions in the above patents have the following drawbacks: under actual conditions, the difference between the diameter of a drilled well and the diameter of a logging instrument is not large, the logging instrument and the drilled well are easily collided in the process of putting the logging instrument into the drilled well, the measuring process and the process of taking the logging instrument out of the drilled well, and the logging instrument is taken as a precise instrument and is likely to be broken or damaged due to collision.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a logging instrument, it has can avoid and well drilling between the advantage that bumps.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a logging instrument, is including being columniform logging instrument body, the open end of well drilling is provided with fixed baseplate, fixed baseplate include with the inscription sleeve of well drilling open end inner wall laminating, with inscription sleeve top be connected and the level set up at the fixed plate of well drilling top surface, vertical setting at the fixed plate top surface and with the coaxial solid fixed cylinder of well drilling, the internal diameter of inscription sleeve, solid fixed cylinder all is greater than the external diameter of logging instrument, solid fixed cylinder level runs through the tight screw rod of supporting that has a plurality of threaded connection, the one end that supports the tight screw rod and be located solid fixed cylinder is connected with and supports tight board, support the tight screw rod and encircle the setting around the axis of well drilling, logging instrument is equipped with its drive assembly who removes along vertical direction of.

By adopting the technical scheme, when the logging instrument is put into or taken out of the well, the abutting screw rod can be rotated, so that a part of the logging instrument is limited in the area surrounded by the abutting plate, and therefore when the logging instrument is moved by using the driving assembly, the logging instrument can be effectively prevented from colliding with the well and protected; when the well logging instrument is used for measurement, the abutting screw can be continuously rotated, so that the abutting plate is completely abutted against the well logging instrument, the well logging instrument is prevented from shaking in the measurement process, and the measurement precision of the well logging instrument is improved.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a fixed pulley arranged above the well drilling, a take-up pulley arranged on the top surface of the well drilling, a rope which is connected with the top end of the logging instrument and penetrates through the fixed pulley to be wound on the take-up pulley, and a forward and reverse rotating motor for driving the take-up pulley to rotate.

Through adopting above-mentioned technical scheme, the motor that just reverses rotates, can realize the rising and the decline of logging instrument, this drive mode simple structure, the practicality is high, and can realize the vertical removal of logging instrument, can effectively reduce the probability of removing the time and drilling lateral wall collision.

The present invention may be further configured in a preferred embodiment as: the abutting plate is arc-shaped and is matched with the circumferential side wall of the logging instrument, and the abutting screw is rotationally connected with the abutting plate.

By adopting the technical scheme, the abutting plate has a larger contact area when contacting with the logging instrument, and has a larger limit area for the logging instrument when the logging instrument vertically moves; when the logging instrument works, the fixing effect on the logging instrument is firmer.

The present invention may be further configured in a preferred embodiment as: the fixed cylinder horizontally penetrates through a guide rod with one end connected with the abutting plate, the guide rod is parallel to the abutting screw rod and is provided with a first anti-falling ring at one end far away from the abutting plate.

Through adopting above-mentioned technical scheme, because support tight board and support tight screw rod and rotate and be connected, consequently, rotate the in-process that supports tight screw rod, support tight board and also probably rotate thereupon, must at this moment manually regulated support the position of tight board and just can realize spacing, the fixed action to the logging instrument, it is comparatively troublesome. The guide rod is arranged to avoid the problem, so that the abutting plate cannot rotate along with the rotation of the abutting screw rod when the abutting screw rod rotates, and meanwhile, the stability of the abutting plate in the moving process is improved.

The present invention may be further configured in a preferred embodiment as: and scales are arranged on the guide rod.

By adopting the technical scheme, the scales are arranged, so that when the well logging instrument is limited or fixed by all the abutting plates, the distances between the inner walls of the relative drilling wells are equal, the central axis of the well logging instrument and the central axis of the drilling wells can be coincided, the well logging instrument is prevented from being in an inclined state in the drilling wells, and the possibility that the well logging instrument possibly collides with the inner walls of the drilling wells is further avoided.

The present invention may be further configured in a preferred embodiment as: the face of the abutting plate close to the logging instrument is horizontally provided with a groove, a U-shaped clamping plate with an opening facing the logging instrument is horizontally arranged in the groove, a sliding roller with a rotating shaft perpendicular to the axis of the logging instrument is rotatably connected between two parallel side walls of the U-shaped clamping plate, and the U-shaped clamping plate is provided with a driving device for driving the U-shaped clamping plate to move along the direction close to or far away from the logging instrument.

Through adopting above-mentioned technical scheme, can make the lateral wall contact of smooth roller and logging instrument through drive arrangement, when the logging instrument is moving along vertical direction, can use smooth roller to contact rather than the lateral wall, both played fine spacing effect to the logging instrument, can not influence the removal of logging instrument simultaneously, very big promotion the practicality.

The present invention may be further configured in a preferred embodiment as: the driving device comprises a through hole, an internal thread, a driving screw and a moving rod, wherein the through hole is horizontally penetrated through and abutted to the tight screw and communicated with the groove, the internal thread is arranged at one end, close to the fixed cylinder, of the through hole, one end of the driving screw stretches into the through hole and is matched with the internal thread for use, and the moving rod stretches into the other end of the through hole and is connected with the U-shaped clamping plate.

Through adopting above-mentioned technical scheme, the drive screw is rotated and the lapse that can realize the carriage release lever realizes supporting of smooth roller and logging instrument tightly, and this drive arrangement makes the removal of supporting tight board and the removal of smooth roller between mutual noninterference, easy operation, fixed effectual to the smooth roller, the effectual stop function of guaranteeing the smooth roller to the logging instrument.

The present invention may be further configured in a preferred embodiment as: the inner wall of the opening end of the through hole, which is close to the abutting plate, is provided with a limiting ring, and one end of the moving rod, which is close to the driving screw rod, is provided with a second anti-drop ring which is matched with the limiting ring for use.

Through adopting above-mentioned technical scheme, avoided the carriage release lever and supported the problem that probably breaks away from between the tight screw rod, promoted drive arrangement's practicality.

The present invention may be further configured in a preferred embodiment as: and a rubber layer is arranged on one surface of the abutting plate close to the logging instrument.

Through adopting above-mentioned technical scheme, when supporting tight board and logging instrument complete contact and support tightly rather than, under the effect of rubber layer, very big promotion frictional force between the two, promoted and supported tight board to the fixed effect of logging instrument, avoided the problem that probably collides with the well drilling lateral wall in its working process.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the fixed base, the abutting screw and the abutting plate, when the logging instrument moves and works, the collision between the logging instrument and a well can be effectively avoided, and the logging instrument is effectively protected;

2. the guide rod with scales is arranged, the abutting plate is arranged to be arc-shaped, and the rubber layer is arranged, so that the limiting effect and the fixing effect on the logging instrument are improved;

3. through setting up U-shaped cardboard, smooth roller and drive arrangement, when the logging instrument is moving along vertical direction, can use smooth roller to contact rather than the lateral wall, both played fine spacing effect to the logging instrument, can not influence the removal of logging instrument simultaneously, very big promotion the practicality.

Drawings

FIG. 1 is a schematic diagram of a tool configuration;

FIG. 2 is a schematic structural view of a fixed base;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 4 is a partial perspective sectional view taken along the plane B-B in fig. 3.

Reference numerals: 1. a logging tool body; 2. a fixed base; 21. an inner connecting sleeve; 22. a fixing plate; 23. a fixed cylinder; 3. tightly abutting against the screw rod; 4. a propping plate; 5. a drive assembly; 51. a pulley; 52. a take-up pulley; 53. a positive and negative rotation motor; 54. a rope; 6. a guide bar; 7. a first anti-slip ring; 8. a groove; 9. a U-shaped clamping plate; 10. a sliding roller; 11. a drive device; 111. a through hole; 112. an internal thread; 113. a drive screw; 114. a travel bar; 12. a limiting ring; 13. a second anti-slip ring; 14. a rubber layer; 15. a pressure spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a logging instrument, including being columniform logging instrument body 1, the open end of well drilling is provided with steel fixed baseplate 2, and fixed baseplate 2 includes the inscription sleeve 21 with the laminating of well drilling open end inner wall, is connected and the level sets up at the fixed plate 22 of well drilling top surface, vertical setting at fixed plate 22 top surface and with the coaxial solid fixed cylinder 23 of well drilling with inscription sleeve 21 top. In this embodiment, the internal sleeve 21, the fixing plate 22 and the fixing cylinder 23 are integrally formed, the fixing plate 22 is connected to the surface of the borehole by bolts, and the internal diameters of the internal sleeve 21 and the fixing cylinder 23 are larger than the external diameter of the logging tool.

Referring to fig. 3 and 4, in order to limit and fix the logging instrument and prevent the logging instrument from colliding with the inner wall of a drilling well during moving or working, a fixed cylinder 23 horizontally penetrates through three tightly-supporting screw rods 3 in threaded connection, one ends of the tightly-supporting screw rods 3 in the fixed cylinder 23 are rotatably connected with tightly-supporting plates 4, and the tightly-supporting screw rods 3 are arranged around the axis of the drilling well in a surrounding manner. In this embodiment, the movement of the logging instrument is provided with a special driving assembly 5, the driving assembly 5 includes a concrete fixing column integrally cast on the top surface of the well drilling, a fixed pulley 51 connected with the concrete fixing column by bolts and located above the well drilling, a take-up pulley 52 arranged on the fixing column, a rope 54 connected with the top end of the logging instrument and passing through the fixed pulley 51 to be wound on the take-up pulley 52, and a forward and reverse rotation motor 53 driving the take-up pulley 52 to rotate, and the forward and reverse rotation motor 53 is fixed with the fixing column by bolts. The positive and negative rotation motor 53 rotates, so that the vertical movement of the logging instrument can be realized, and the probability of collision between the logging instrument and the side wall of the drilling well when the logging instrument moves is effectively reduced. When the logging instrument is put into or taken out of the well, the abutting screw rod 3 can be rotated, so that a part of the logging instrument is limited in an area surrounded by the abutting plate 4, and therefore when the logging instrument is moved by using the driving assembly 5, the logging instrument can be effectively prevented from colliding with the well and protected; when the measurement work is carried out, the abutting screw 3 can be continuously rotated, so that the abutting plate 4 is completely abutted against the logging instrument, the logging instrument is prevented from shaking in the measurement process, and the measurement precision is improved.

Referring to fig. 3 and 4, when the logging instrument vertically moves, the abutting plate 4 cannot completely abut against the logging instrument, otherwise, the movement of the logging instrument is affected, the limiting effect on the logging instrument is reduced to a certain degree, and the logging instrument still slightly shakes in the vertical moving process. In order to solve the problem, a rectangular groove 8 is horizontally arranged on one surface, close to the logging instrument, of the abutting plate 4, a U-shaped clamping plate 9 with an opening facing the logging instrument is horizontally arranged in the groove 8, a sliding roller 10 with a rotating shaft perpendicular to the axis of the logging instrument is rotatably connected between two parallel side walls of the U-shaped clamping plate 9, the U-shaped clamping plate 9 is provided with a driving device 11 for driving the U-shaped clamping plate to move along the direction close to or away from the logging instrument, the driving device 11 comprises a through hole 111 which horizontally penetrates through the abutting screw rod 3 and is communicated with the groove 8, an internal thread 112 which is arranged at one end, close to the fixing cylinder 23, of the through hole 111, a driving screw rod 113 which is used in a mode of extending into the through hole 111 and is matched with the internal thread 112, and a moving. The driving screw 113 is rotated, so that the movable rod 114 can move towards the direction of the logging instrument to realize the tight support of the sliding roller 10 and the logging instrument, when the logging instrument moves along the vertical direction, the sliding roller 10 can be used to tightly support the side wall of the logging instrument, a good limiting effect is achieved on the logging instrument, the movement of the logging instrument cannot be influenced, and the practicability is greatly improved. Furthermore, in order to avoid the problem that the moving rod 114 may be separated from the tightening screw 3, a limiting ring 12 is bonded to the inner wall of the through hole 111 near the opening end of the tightening plate 4, a second anti-slip ring 13 used in cooperation with the limiting ring 12 is disposed at one end of the moving rod 114 near the driving screw 113, and the second anti-slip ring 13 and the moving rod 114 are integrally formed. Preferably, a pressure spring 15 sleeved with the moving rod 114 is arranged between the limiting ring 12 and the second anti-falling ring 13, and the pressure spring 15 is respectively bonded with the limiting ring 12 and the second anti-falling ring 13.

Referring to fig. 3 and 4, in order to improve the fixing effect of the abutting plate 4 on the logging instrument and make the abutting plate 4 more stable in the working process, a rubber layer 14 is bonded on one surface of the abutting plate 4 close to the logging instrument, and the abutting plate 4 is made into an arc shape which is adaptive to the circumferential side wall of the logging instrument. Because the abutting plate 4 is rotatably connected with the abutting screw rod 3, the abutting plate 4 can also rotate along with the rotating abutting screw rod 3 in the rotating abutting screw rod 3, and the limiting and fixing effects on the logging instrument can be realized only by manually adjusting the position of the abutting plate 4, which is troublesome. As an improvement, the fixed cylinder 23 is horizontally penetrated with a guide rod 6 with one end welded with the abutting plate 4, the guide rod 6 is arranged in parallel with the abutting screw rod 3, and a first anti-falling ring 7 is welded at one end of the guide rod far away from the abutting plate 4. Preferably, the guide rod 6 is provided with scales, and the scales ensure that when all the abutting plates 4 limit or fix the logging instrument, the distances between the inner walls of the drilled wells are equal, the central axis of the logging instrument and the central axis of the drilled wells can be coincided, the logging instrument is prevented from being in an inclined state in the drilled wells, and the possibility that the logging instrument possibly collides with the inner walls of the drilled wells is further avoided.

The implementation principle of the embodiment is as follows: when the logging instrument is put into a well, the abutting screw rods 3 are rotated, and the distances from the abutting plates 4 to the logging instrument are close by observing the scales on the guide rods 6, so that the abutting plates 4 and the logging instrument have a gap of about 1 cm. The drive screw 113 is then turned to bring the slip roller 10 into abutment with the tool, and the tool is then lowered slowly by activating the counter-rotating motor 53. When the logging instrument is put into the well, the driving screw 113 is rotated to enable the sliding roller 10 to be completely accommodated in the groove 8, and then the abutting screw 3 is continuously rotated to enable the abutting plate 4 to abut against the side wall of the logging instrument.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A logging instrument comprises a cylindrical logging instrument body (1) and is characterized in that a fixed base (2) is arranged at the opening end of a drilling well, the fixed base (2) comprises an inner connecting sleeve (21) attached to the inner wall of the open end of the drilling well, a fixed plate (22) connected with the top end of the inner connecting sleeve (21) and horizontally arranged on the top surface of the drilling well, and a fixed cylinder (23) vertically arranged on the top surface of the fixed plate (22) and coaxial with the drilling well, the inner diameters of the inner connecting sleeve (21) and the fixed cylinder (23) are both larger than the outer diameter of the logging instrument, a plurality of tightly-resisting screw rods (3) which are connected by screw threads penetrate through the fixed cylinder (23) horizontally, one end of the abutting screw rod (3) positioned in the fixed cylinder (23) is connected with an abutting plate (4), the abutting screw rod (3) is arranged around the axis of a well, and the logging instrument is provided with a driving assembly (5) for driving the logging instrument to move along the vertical direction.

2. The logging instrument of claim 1, wherein the driving assembly (5) comprises a fixed pulley (51) disposed above the borehole, a take-up reel (52) disposed on a top surface of the borehole, a rope (54) connected to a top end of the logging instrument and wound around the take-up reel (52) through the fixed pulley (51), and a counter-rotating motor (53) for driving the take-up reel (52) to rotate.

3. The logging instrument of claim 1, wherein the abutting plate (4) is arc-shaped and adapted to the circumferential side wall of the logging instrument, and the abutting screw (3) is rotatably connected with the abutting plate (4).

4. The logging instrument according to claim 3, wherein a guide rod (6) with one end connected with the tightening plate (4) horizontally penetrates through the fixed cylinder (23), the guide rod (6) is arranged in parallel with the tightening screw (3), and a first anti-drop ring (7) is arranged at one end of the guide rod far away from the tightening plate (4).

5. A logging tool according to claim 4, wherein the guide rod (6) is provided with a scale.

6. The logging instrument according to claim 5, wherein a groove (8) is horizontally arranged on one surface of the abutting plate (4) close to the logging instrument, a U-shaped clamping plate (9) with an opening facing the logging instrument is horizontally arranged in the groove (8), a sliding roller (10) with a rotating shaft perpendicular to the axis of the logging instrument is rotatably connected between two parallel side walls of the U-shaped clamping plate (9), and the U-shaped clamping plate (9) is provided with a driving device (11) for driving the U-shaped clamping plate to move in a direction close to or away from the logging instrument.

7. The logging instrument of claim 6, wherein the driving device (11) comprises a through hole (111) horizontally penetrating through the abutting screw (3) and communicating with the groove (8), an internal thread (112) arranged at one end of the through hole (111) close to the fixed cylinder (23), a driving screw (113) with one end extending into the through hole (111) and used in cooperation with the internal thread (112), and a moving rod (114) extending into the other end of the through hole (111) and connected with the U-shaped clamping plate (9).

8. The logging instrument according to claim 7, wherein the through hole (111) is provided with a limit ring (12) near the inner wall of the opening end of the abutting plate (4), and the end of the moving rod (114) near the driving screw (113) is provided with a second anti-drop ring (13) used in cooperation with the limit ring (12).

9. The logging tool according to claim 1, wherein a rubber layer (14) is arranged on the surface of the abutting plate (4) close to the logging tool.