A well logging apparatus and method for petroleum exploration

Abstract

The application discloses a well logging device and method for oil exploration, and particularly relates to the technical field of oil exploration, which comprises a well logging assembly, a plurality of well logging assemblies are arranged, and the well logging assembly comprises a well logging mechanism, the top end of the well logging mechanism is provided with a traction mechanism; the well logging mechanism comprises a receiving outer frame, the middle part of the receiving outer frame is provided with a winding groove which is vertically through, the top of the winding groove is fixedly provided with a first cover, and the bottom of the winding groove is fixedly provided with a second cover; through the arrangement of the plurality of well logging assemblies, the well logging mechanism is automatically pulled in the drilling pipe in the oil exploration by the traction mechanism, the plurality of well logging assemblies can be sequentially moved to a plurality of monitoring points in the oil exploration, a plurality of well logging probes are used to perform real-time monitoring on a plurality of geological target strata, and various parameters are collected and recorded, meanwhile, the parameters are stably transmitted through the first wire, the second wire and the third wire, and the well logging effect during the oil exploration is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil exploration, in particular to a well logging device and method for oil exploration. BACKGROUND

[0002] The well logging for oil exploration is to measure the physical, chemical and geological properties of the formation in the wellbore during drilling or after completion by using specific instruments, which can help geologists to evaluate the potential of oil and gas reservoirs, determine the location, thickness and properties of oil and gas layers; the commonly used well logging methods mainly include electrical logging, acoustic logging and radioactive logging, etc.

[0003] The conventional well logging device for oil exploration is usually lowered into the wellbore through the drilling pipe (oil pipe) until it reaches the target formation, and the logging probe is used to collect and record various parameters, but due to the curved state of some drilling pipes, the logging device is difficult to pull forward along the path of the drilling pipe, thereby affecting the logging effect, and secondly, the conventional logging device is mainly used for single-point positioning logging, which can only position and log a certain position of the drilling pipe, but it is difficult to monitor the remaining parts at the same time, so it is not convenient to effectively and comprehensively monitor multiple positions of the drilling pipe in real time, therefore, the present application provides a well logging device and method for oil exploration to solve the above problems. SUMMARY

[0004] The present application aims to provide a well logging device and method for oil exploration to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a well logging device for oil exploration, comprising a plurality of well logging assemblies, wherein the well logging assembly comprises a well logging mechanism, and the top end of the well logging mechanism is provided with a traction mechanism;

[0006] The well logging mechanism comprises a receiving outer frame, an upper and lower through rolling groove is arranged in the middle of the receiving outer frame, a first cover is fixedly clamped on the top of the rolling groove, a second cover is fixedly clamped on the bottom of the rolling groove, a logging probe is fixedly installed on the outer side of the receiving outer frame, a first magnetic sheet is fixedly installed on the bottom end of the second cover, a rolling frame is transversely rotatably installed in the middle of the rolling groove, the two shaft ends of the rolling frame extend into the receiving outer frame, a first conductive slip ring is fixedly clamped on one shaft end of the rolling frame, one connecting end of the first conductive slip ring extends into the receiving outer frame and is fixedly installed with a first lead wire, and the other connecting end of the first conductive slip ring extends into the rolling groove and is fixedly installed with a second lead wire.

[0007] As a preferred technical scheme of the present application, the first wire extends to the top of the winding groove from the end of the first conductive slip ring away from the first conductive slip ring, the first wire is movably penetrated through the middle of the first cover from the end of the first conductive slip ring away from the first conductive slip ring, the middle of the second cover is provided with a wire through slot, the wire through slot is fixedly provided with a rubber ring pad, the second wire is wound on the outside of the winding frame, and the end of the second wire away from the first conductive slip ring is movably penetrated through the rubber ring pad.

[0008] As a preferred technical scheme of the present application, the other shaft end of the winding frame is fixedly provided with a first conical tooth, the side of the receiving outer frame close to the first conical tooth is fixedly provided with a first motor, the driving end of the first motor is fixedly provided with a second conical tooth, and the second conical tooth is in meshing connection with the first conical tooth.

[0009] As a preferred technical scheme of the present application, the outside bottom of the receiving outer frame is fixedly provided with a plurality of auxiliary seats in annular array distribution, and the end of the auxiliary seat is rollingly installed with an auxiliary ball.

[0010] As a preferred technical scheme of the present application, the traction mechanism comprises a traction outer frame, the middle of the traction outer frame is provided with a wire through slot, the top end of the traction outer frame is fixedly provided with a second magnetic attraction piece, the outside bottom of the traction outer frame is slidably provided with a plurality of telescopic slide rods in annular array distribution, the outer end of each of the plurality of telescopic slide rods is rotatably installed with a traction wheel, the inner end of each of the plurality of telescopic slide rods is fixedly installed with an adjusting inclined frame, the traction outer frame is rotatably installed with an adjusting ring holder, the outside of the adjusting ring holder is fixedly provided with a connecting rod corresponding to the adjusting inclined frame, the end of the connecting rod away from the adjusting ring holder is perpendicularly installed with an adjusting vertical shaft, the adjusting vertical shaft is slidably clamped in the corresponding adjusting inclined frame, the bottom of the wire through slot is rotatably clamped with a clamping gear, the middle of the clamping gear is fixedly clamped with a connecting clamping pipe, the bottom of the connecting clamping pipe is fixedly clamped in the middle of the first cover, the top of the wire through slot is fixedly clamped with a mounting ring, the middle of the mounting ring is fixedly clamped with a mounting sleeve, the mounting sleeve is fixedly clamped with a second conductive slip ring, the bottom of the second conductive slip ring extends into the connecting clamping pipe, the connecting end of the second conductive slip ring at the bottom is fixedly installed with the end of the first wire away from the first conductive slip ring, the connecting end of the second conductive slip ring at the top is fixedly installed with a third wire, and the third wire is movably penetrated through the mounting sleeve.

[0011] As a preferred technical scheme of the present application, the top of the adjusting ring is integrally formed with a transmission gear ring, the outer side of the transmission gear ring is meshingly connected with a first gear, the middle part of the first gear is fixedly installed with a first longitudinal shaft, the first longitudinal shaft is rotatably installed in a traction outer frame, the bottom of the first longitudinal shaft is fixedly installed with a second worm gear, the outer side of the second worm gear is meshingly connected with a second worm, the second worm is rotatably installed in the traction outer frame, a third motor is fixedly installed on the inner wall of the traction outer frame near the second worm, and the driving end of the third motor and the shaft end of the second worm are fixedly installed.

[0012] As a preferred technical scheme of the present application, the outer side of the clamping gear is meshingly connected with a second gear, the middle part of the second gear is fixedly installed with a second longitudinal shaft, the second longitudinal shaft is rotatably installed in a traction outer frame, the bottom of the second longitudinal shaft is fixedly installed with a third worm gear, the outer side of the third worm gear is meshingly connected with a third worm, the third worm is rotatably installed in the traction outer frame, a fourth motor is fixedly installed on the inner wall of the traction outer frame near the third worm, and the driving end of the fourth motor and the shaft end of the third worm are fixedly installed.

[0013] As a preferred technical scheme of the present application, the shaft ends of the traction wheels are fixedly installed with first worm gears, the outer sides of the first worm gears are meshingly connected with first worms, the first worms are rotatably installed on the outer side of the telescopic slide rod, a second motor is fixedly installed on the outer wall of the telescopic slide rod near the first worm, the driving end of the second motor and the shaft end of the first worm are fixedly installed, a protective cover is fixedly installed on the outer wall of the telescopic slide rod near the second motor, and the first worm gears, the first worms and the second motor are located in the protective cover.

[0014] As a preferred technical scheme of the present application, adjacent two well logging assemblies are magnetically connected through adjacent corresponding first magnetic attraction pieces and second magnetic attraction pieces, and corresponding third conductive wires and second conductive wires between the adjacent two well logging assemblies are electrically connected.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. By setting multiple well logging assemblies, using a traction mechanism to automatically pull the well logging mechanism to move in the drilling pipe in oil exploration, the multiple well logging assemblies can be moved to multiple monitoring points of oil exploration in turn, various parameters of multiple geological target strata are monitored in real time using multiple well logging probes, and various parameters are collected and recorded, and the parameter stable transmission is performed through the first conductive wire, the second conductive wire and the third conductive wire, so that the well logging effect in oil exploration is improved.

[0017] 2. By setting up logging components, the entire logging mechanism can be rotated, adjusting the angle of the logging probe inside the drilling pipe, which facilitates comprehensive monitoring by the logging probe inside the drilling pipe and further improves the logging effect during oil exploration.

[0018] 3. By setting up a traction mechanism, the spacing between multiple traction wheels can be flexibly adjusted according to the inner diameter of the drilling pipe, so that multiple traction wheels contact the inner wall of the drilling pipe. The automatic traction logging mechanism can move inside the drilling pipe in oil exploration with different inner diameters, increasing the flexibility of the entire device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the well logging component in this invention.

[0022] Figure 3 This is a schematic diagram of the logging mechanism in this invention.

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 This is a partial structural diagram of the logging mechanism in this invention.

[0025] Figure 6 This is a partial structural diagram of the logging mechanism in this invention.

[0026] Figure 7 This is a schematic diagram showing the structural connection between the winding frame and the first conductive slip ring in this invention.

[0027] Figure 8 This is a schematic diagram of the traction mechanism in this invention.

[0028] Figure 9 This is a schematic diagram of the traction mechanism in this invention from another angle.

[0029] Figure 10 For the present invention Figure 9 Enlarged view of point B in the middle.

[0030] Figure 11 This is a partial structural diagram of the traction mechanism in this invention.

[0031] Figure 12 For the application Figure 11 Enlarged view at C in the application.

[0032] Figure 13 For the application

[0033] In the figure: 1, logging assembly; 2, logging mechanism; 3, traction mechanism; 21, storage frame; 201, winding groove; 202, wire slot; 22, first cover; 221, second cover; 222, rubber ring pad; 23, logging probe; 24, first magnetic piece; 25, winding frame; 26, first conductive slip ring; 27, first wire; 271, second wire; 28, first bevel gear; 281, first motor; 282, second bevel gear; 29, auxiliary seat; 291, auxiliary ball; 31, traction frame; 301, threading groove; 32, telescopic slide rod; 321, traction wheel; 322, first worm gear; 323, first worm; 324, second motor; 325, protective cover; 33, adjusting inclined frame; 331, adjusting ring stand; 332, connecting rod; 333, adjusting longitudinal axis; 34, transmission gear ring; 341, first gear; 342, first longitudinal axis; 343, second worm gear; 344, second worm; 345, third motor; 35, clamping gear; 3501, connecting clamping tube; 351, second gear; 352, second longitudinal axis; 353, third worm gear; 354, third worm; 355, fourth motor; 36, mounting ring; 361, mounting sleeve; 37, second conductive slip ring; 38, third wire; 39, second magnetic piece. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Embodiment: as Figures 1-13 shown, the present application provides a logging device for oil exploration, which comprises a logging assembly 1, the logging assembly 1 is provided with a plurality of logging assemblies 1, the logging assembly 1 comprises a logging mechanism 2, the top end of the logging mechanism 2 is provided with a traction mechanism 3;

[0036] The logging mechanism 2 comprises a receiving outer frame 21, the middle part of the receiving outer frame 21 is provided with an up-down through winding groove 201, the top of the winding groove 201 is fixedly clamped with a first cover 22, the bottom of the winding groove 201 is fixedly clamped with a second cover 221, the outer side of the receiving outer frame 21 is fixedly installed with a logging probe 23, by setting the logging probe 23, the logging probe 23 is deeply inserted into the drilling pipe in the oil exploration, the geological target stratum is monitored, and various parameters are collected and recorded, the bottom end of the second cover 221 is fixedly installed with a first magnetic attraction piece 24, the middle part of the winding groove 201 is transversely rotatably installed with a winding frame 25, both shaft ends of the winding frame 25 extend into the receiving outer frame 21, one shaft end of the winding frame 25 is fixedly clamped with a first conductive slip ring 26, one connecting end of the first conductive slip ring 26 extends into the receiving outer frame 21 and is fixedly installed with a first wire 27, the other connecting end of the first conductive slip ring 26 extends into the winding groove 201 and is fixedly installed with a second wire 271, by setting the first conductive slip ring 26, the conductive rotary connection between the first wire 27 and the second wire 271 is realized, and the rotation of the winding frame 25 does not affect the winding and unwinding of the second wire 271.

[0037] One end of the first wire 27 away from the first conductive slip ring 26 extends to the top of the winding groove 201, the one end of the first wire 27 away from the first conductive slip ring 26 movably penetrates the middle part of the first cover 22, the middle part of the second cover 221 is provided with a wire through groove 202, the wire through groove 202 is fixedly installed with a rubber ring pad 222, the second wire 271 is wound on the outer side of the winding frame 25, the one end of the second wire 271 away from the first conductive slip ring 26 movably penetrates the rubber ring pad 222, and the second wire 271 is convenient for sliding in the middle part of the rubber ring pad 222.

[0038] The other shaft end of the winding frame 25 is fixedly installed with a first conical gear 28, one side of the receiving outer frame 21 close to the first conical gear 28 is fixedly installed with a first motor 281, the driving end of the first motor 281 is fixedly installed with a second conical gear 282, the second conical gear 282 and the first conical gear 28 are meshed and connected, by starting the first motor 281 to drive the second conical gear 282 to drive the first conical gear 28 to rotate, the rotation of the winding frame 25 is controlled, and the winding and unwinding of the second wire 271 are realized.

[0039] The outer side bottom of the receiving outer frame 21 is fixedly provided with a plurality of auxiliary seats 29 arranged in an annular array, the end part of the auxiliary seat 29 is rotatably installed with an auxiliary ball 291, by setting the auxiliary ball 291, part of the auxiliary balls 291 can be in contact with the inner wall of the drilling pipe, the logging mechanism 2 is assisted and supported, and the stability of the overall movement of the logging mechanism 2 is increased.

[0040] The traction mechanism 3 comprises a traction outer frame 31, a threading groove 301 is formed in the middle of the traction outer frame 31, a second magnetic attraction piece 39 is fixedly installed at the top end of the traction outer frame 31, a plurality of telescopic slide rods 32 in annular array are slidingly clamped at the outer bottom of the traction outer frame 31, traction wheels 321 are rotatably installed at the outer ends of the plurality of telescopic slide rods 32, adjusting inclined frames 33 are fixedly installed at the inner ends of the plurality of telescopic slide rods 32, an adjusting ring holder 331 is rotatably installed in the traction outer frame 31, connecting rods 332 corresponding to the adjusting inclined frames 33 are fixedly installed at the outer side of the adjusting ring holder 331, adjusting longitudinal shafts 333 are perpendicularly installed at the ends of the connecting rods 332 away from the adjusting ring holder 331, the adjusting longitudinal shafts 333 are slidingly clamped in the corresponding adjusting inclined frames 33, by controlling the rotation of the adjusting ring holder 331, the plurality of connecting rods 332 and the adjusting longitudinal shafts 333 are driven to rotate, at the same time, the adjusting longitudinal shafts 333 slide in the adjusting inclined frames 33, the plurality of telescopic slide rods 32 and the traction wheels 321 are controlled to move away from each other, on the contrary, by controlling the reverse rotation of the adjusting ring holder 331, the plurality of connecting rods 332 and the adjusting longitudinal shafts 333 are driven to rotate in the opposite direction, at the same time, the adjusting longitudinal shafts 333 slide in the adjusting inclined frames 33 in the opposite direction, the plurality of telescopic slide rods 32 and the traction wheels 321 are controlled to move towards each other, according to the size of the inner diameter of the drilling pipe, the spacing of the plurality of traction wheels 321 is flexibly adjusted, so that the plurality of traction wheels 321 contact the inner wall of the drilling pipe;

[0041] A clamping gear 35 is rotatably clamped at the bottom of the threading groove 301, a connecting clamping pipe 3501 is fixedly clamped in the middle of the clamping gear 35, the bottom of the connecting clamping pipe 3501 is fixedly clamped in the middle of the first cover 22, so as to fix the traction mechanism 3 and the logging mechanism 2, an installation ring 36 is fixedly clamped at the top of the threading groove 301, an installation sleeve 361 is fixedly clamped in the middle of the installation ring 36, a second conductive slip ring 37 is fixedly clamped in the installation sleeve 361, the bottom of the second conductive slip ring 37 extends into the connecting clamping pipe 3501, a connecting end at the bottom position of the second conductive slip ring 37 is fixedly installed with the end of the first wire 27 away from the first conductive slip ring 26, a connecting end at the top position of the second conductive slip ring 37 is fixedly installed with a third wire 38, the third wire 38 is movably penetrated through the installation sleeve 361, by setting the second conductive slip ring 37, the conductive rotary connection between the third wire 38 and the first wire 27 is realized, without affecting the rotation of the clamping gear 35 and the connecting clamping pipe 3501 to drive the entire logging mechanism 2 to rotate, the angle of the logging probe 23 in the drilling pipe is adjusted, so as to facilitate the logging probe 23 to comprehensively monitor in the drilling pipe, and improve the overall logging effect.

[0042] The top of the adjusting ring frame 331 is integrally formed with a transmission gear ring 34, the outer side of the transmission gear ring 34 is meshedly connected with a first gear 341, the middle part of the first gear 341 is fixedly installed with a first vertical shaft 342, the first vertical shaft 342 is rotatably installed in the traction outer frame 31, the bottom of the first vertical shaft 342 is fixedly installed with a second worm gear 343, the outer side of the second worm gear 343 is meshedly connected with a second worm 344, the second worm 344 is rotatably installed in the traction outer frame 31, a third motor 345 is fixedly installed on the inner wall of the traction outer frame 31 near the second worm 344, the driving end of the third motor 345 and the shaft end of the second worm 344 are fixedly installed, the second worm 344 is driven to rotate by starting the third motor 345, so as to drive the first vertical shaft 342 and the first gear 341 to rotate, and then control the transmission gear ring 34 and the adjusting ring frame 331 to rotate.

[0043] The outer side of the clamping gear 35 is meshedly connected with a second gear 351, the middle part of the second gear 351 is fixedly installed with a second vertical shaft 352, the second vertical shaft 352 is rotatably installed in the traction outer frame 31, the bottom of the second vertical shaft 352 is fixedly installed with a third worm gear 353, the outer side of the third worm gear 353 is meshedly connected with a third worm 354, the third worm 354 is rotatably installed in the traction outer frame 31, a fourth motor 355 is fixedly installed on the inner wall of the traction outer frame 31 near the third worm 354, the driving end of the fourth motor 355 and the shaft end of the third worm 354 are fixedly installed, the third worm 354 is driven to rotate by starting the fourth motor 355, so as to drive the third worm gear 353 and the second vertical shaft 352 to rotate, and then drive the second gear 351 to control the clamping gear 35 to rotate.

[0044] The shaft end of the traction wheel 321 is fixedly installed with a first worm gear 322, the outer side of the first worm gear 322 is meshedly connected with a first worm 323, the first worm 323 is rotatably installed on the outer side of the telescopic slide rod 32, a second motor 324 is fixedly installed on the outer wall of the telescopic slide rod 32 near the first worm 323, the driving end of the second motor 324 and the shaft end of the first worm 323 are fixedly installed, a protective cover 325 is fixedly installed on the outer wall of the telescopic slide rod 32 near the second motor 324, the first worm gear 322, the first worm 323 and the second motor 324 are located in the protective cover 325, the first worm 323 is driven to rotate by starting the second motor 324, so as to drive the first worm gear 322 and the traction wheel 321 to rotate, thereby driving the traction mechanism 3 to move in the drilling pipe, and then driving the logging mechanism 2 to move in the drilling pipe.

[0045] Two adjacent logging components 1 are magnetically connected by adjacent corresponding first magnetic absorbing piece 24 and second magnetic absorbing piece 39, which facilitates the separation of two adjacent logging components 1. The corresponding third wire 38 and second wire 271 are electrically connected between two adjacent logging components 1.

[0046] A method for using a logging device for oil exploration includes the following steps:

[0047] Step 1: Electrically connect the corresponding third wire 38 and second wire 271 between two adjacent logging components 1. Then, magnetically connect the two adjacent logging components 1 through the adjacent corresponding first magnetic absorbing piece 24 and second magnetic absorbing piece 39 to form a magnetic connection between the two adjacent logging components 1. At this time, the second wire 271 is wound up in the winding frame 25.

[0048] Step 2: Based on the inner diameter of the drilling pipe, flexibly adjust the spacing of multiple traction wheels 321. By turning on the third motor 345, drive the second worm gear 344 to rotate the second worm wheel 343, thereby driving the first longitudinal shaft 342 and the first gear 341 to rotate. This, in turn, controls the transmission gear ring 34 and the adjusting ring frame 331 to rotate, driving multiple connecting rods 332 and the adjusting longitudinal shaft 333 to rotate. At the same time, the adjusting longitudinal shaft 333 slides in the adjusting inclined frame 33, controlling multiple telescopic slide rods 32 and traction wheels 321 to move in opposite directions. Conversely, by controlling the adjusting ring frame 331 to rotate in the opposite direction, drive multiple connecting rods 332 and the adjusting longitudinal shaft 333 to rotate in the opposite direction. At the same time, the adjusting longitudinal shaft 333 slides in the opposite direction in the adjusting inclined frame 33, controlling multiple telescopic slide rods 32 and traction wheels 321 to move towards each other. Flexibly adjust the spacing of multiple traction wheels 321 so that multiple traction wheels 321 contact the inner wall of the drilling pipe.

[0049] Step 3: Place multiple sets of logging components 1 in the drilling pipe of the oil exploration, and drive the first worm gear 323 to rotate the first worm wheel 322 and the traction wheel 321 by turning on the second motor 324, thereby driving the traction mechanism 3 to move in the drilling pipe, and then traction the logging mechanism 2, thus driving the logging mechanism 2 to move in the drilling pipe.

[0050] When moving to one of the monitoring points, the end logging assembly 1 is not driven to continue extending. Only the front logging assembly 1 is driven to continue extending, which does not affect the continued exploration and allows for real-time monitoring of the monitoring point. At the same time, the first motor 281 in the end logging assembly 1 is activated to drive the second conical tooth 282 to rotate the first conical tooth 28, thereby controlling the winding frame 25 to rotate and unwind the second wire 271 in the logging assembly 1. This does not affect the conductive rotational connection between the first wire 27 and the second wire 271, which facilitates the transmission of monitoring parameters through the first wire 27 and the second wire 271.

[0051] Until moving to multiple monitoring points, each monitoring point corresponds to a group of logging components 1 to carry out real-time monitoring, through the use of multiple logging probes 23 to monitor multiple geological target strata in real time, and collect various parameters, while transmitting parameters stably through the first wire 27 and the second wire 271 and the third wire 38, improving the logging effect during oil exploration;

[0052] Wherein, the fourth motor 355 can be started to drive the third worm 354 to drive the third worm gear 353 and the second longitudinal shaft 352 to rotate, and then drive the second gear 351 to control the clamping gear 35 to rotate, thereby driving the connecting clamp pipe 3501 to rotate, and driving the entire logging mechanism 2 to rotate, adjusting the angle of the logging probe 23 in the drilling pipe, facilitating the logging probe 23 to conduct comprehensive monitoring in the drilling pipe, and not affecting the conductive rotary connection between the third wire 38 and the first wire 27.

[0053] Step four, after monitoring, the front-end logging component 1 is gradually withdrawn from the drilling pipe, and the second wire 271 is wound up.

[0054] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A well logging device for oil exploration comprising a logging assembly (1), characterized in that: The logging assembly (1) is provided with a plurality of logging mechanisms (2), and the top end of the logging mechanism (2) is provided with a traction mechanism (3); The logging mechanism (2) comprises a receiving outer frame (21), the middle part of the receiving outer frame (21) is provided with an up-down through winding groove (201), the top of the winding groove (201) is fixedly clamped with a first cover (22), the bottom of the winding groove (201) is fixedly clamped with a second cover (221), the outer side of the receiving outer frame (21) is fixedly installed with a logging probe (23), the bottom end of the second cover (221) is fixedly installed with a first magnetic attraction piece (24), the middle part of the winding groove (201) is transversely rotatably installed with a winding frame (25), both shaft ends of the winding frame (25) extend into the receiving outer frame (21), one shaft end of the winding frame (25) is fixedly clamped with a first conductive slip ring (26), one connecting end of the first conductive slip ring (26) extends into the receiving outer frame (21) and is fixedly installed with a first wire (27), the other connecting end of the first conductive slip ring (26) extends into the winding groove (201) and is fixedly installed with a second wire (271); One end of the first wire (27) away from the first conductive slip ring (26) extends to the top of the winding groove (201), one end of the first wire (27) away from the first conductive slip ring (26) movably penetrates the middle part of the first cover (22), the middle part of the second cover (221) is provided with a wire through groove (202), the wire through groove (202) is fixedly installed with a rubber ring pad (222), the second wire (271) is wound on the outer side of the winding frame (25), one end of the second wire (271) away from the first conductive slip ring (26) movably penetrates the rubber ring pad (222); Said traction mechanism (3) includes traction outer frame (31), the middle part of traction outer frame (31) is provided with threading slot (301), the top end of traction outer frame (31) is fixedly installed with second magnetic attraction piece (39), the outside bottom of traction outer frame (31) is slidably clamped with the annular array distribution of multiple telescopic slide rods (32), the outer end of multiple telescopic slide rods (32) is rotatably installed with traction wheel (321), the inner end of multiple telescopic slide rods (32) is fixedly installed with adjusting inclined frame (33), the middle of traction outer frame (31) is rotatably installed with adjusting ring holder (331), the outside of adjusting ring holder (331) is fixedly installed with the connecting rod (332) corresponding with adjusting inclined frame (33), the end of connecting rod (332) away from adjusting ring holder (331) is perpendicularly installed with adjusting longitudinal shaft (333), adjusting longitudinal shaft (333) is slidably clamped in corresponding adjusting inclined frame (33), the bottom of threading slot (301) is rotatably clamped with clamping gear (35), the middle of clamping gear (35) is fixedly clamped with connecting clamping pipe (3501), the bottom of connecting clamping pipe (3501) is fixedly clamped in the middle of first sealing cover (22), the top of threading slot (301) is fixedly clamped with mounting ring (36), the middle of mounting ring (36) is fixedly clamped with mounting sleeve (361), second electrically conductive slip ring (37) is fixedly clamped in mounting sleeve (361), the bottom of second electrically conductive slip ring (37) extends into connecting clamping pipe (3501), the connecting end of second electrically conductive slip ring (37) at bottom position and the end of first wire (27) away from first electrically conductive slip ring (26) are fixedly installed, the connecting end of second electrically conductive slip ring (37) at top position is fixedly installed with third wire (38), third wire (38) is movably penetrated through mounting sleeve (361).

2. The well logging device for oil exploration according to claim 1, characterized in that: The other shaft end of the winding frame (25) is fixedly installed with a first bevel gear (28), the side of the receiving outer frame (21) close to the first bevel gear (28) is fixedly installed with a first motor (281), the driving end of the first motor (281) is fixedly installed with a second bevel gear (282), the second bevel gear (282) and the first bevel gear (28) are meshingly connected.

3. The well logging apparatus of claim 2, wherein: The outside bottom of the receiving outer frame (21) is fixedly installed with a plurality of auxiliary seats (29) in annular array distribution, the end of the auxiliary seat (29) is rollingly installed with an auxiliary ball (291).

4. The well logging apparatus of claim 3, wherein: The top of the adjusting ring (331) is integrally formed with a transmission gear ring (34), the outer side of the transmission gear ring (34) is meshedly connected with a first gear (341), the middle part of the first gear (341) is fixedly installed with a first longitudinal shaft (342), the first longitudinal shaft (342) is rotatably installed in the traction outer frame (31), the bottom of the first longitudinal shaft (342) is fixedly installed with a second worm gear (343), the outer side of the second worm gear (343) is meshedly connected with a second worm (344), the second worm (344) is rotatably installed in the traction outer frame (31), the inner wall of the traction outer frame (31) is fixedly installed with a third motor (345) on the side close to the second worm (344), and the driving end of the third motor (345) and the shaft end of the second worm (344) are fixedly installed.

5. A well logging apparatus for oil exploration as claimed in claim 4, wherein: The outer side of the clamping gear (35) is meshedly connected with a second gear (351), the middle part of the second gear (351) is fixedly installed with a second longitudinal shaft (352), the second longitudinal shaft (352) is rotatably installed in the traction outer frame (31), the bottom of the second longitudinal shaft (352) is fixedly installed with a third worm gear (353), the outer side of the third worm gear (353) is meshedly connected with a third worm (354), the third worm (354) is rotatably installed in the traction outer frame (31), the inner wall of the traction outer frame (31) is fixedly installed with a fourth motor (355) on the side close to the third worm (354), and the driving end of the fourth motor (355) and the shaft end of the third worm (354) are fixedly installed.

6. The well logging apparatus of claim 5, wherein: The shaft end of the traction wheel (321) is fixedly installed with a first worm gear (322), the outer side of the first worm gear (322) is meshedly connected with a first worm (323), the first worm (323) is rotatably installed on the outer side of the telescopic slide rod (32), the outer wall of the telescopic slide rod (32) is fixedly installed with a second motor (324) on the side close to the first worm (323), the driving end of the second motor (324) and the shaft end of the first worm (323) are fixedly installed, the outer wall of the telescopic slide rod (32) is fixedly installed with a protective cover (325) on the side close to the second motor (324), and the first worm gear (322), the first worm (323) and the second motor (324) are located in the protective cover (325).

7. A well logging apparatus for oil exploration as claimed in claim 6, wherein: The first magnetic attraction piece (24) and the second magnetic attraction piece (39) are magnetically connected between the two adjacent well logging assemblies (1), and the third wire (38) and the second wire (271) are electrically connected between the two adjacent well logging assemblies (1).

8. A method of using the well logging apparatus of claim 7 for oil exploration, wherein, The steps include: Step one, electrically connecting the third wire (38) and the second wire (271) between the two adjacent well logging assemblies (1), then magnetically connecting the first magnetic attraction piece (24) and the second magnetic attraction piece (39) between the two adjacent well logging assemblies (1), magnetically connecting the two adjacent well logging assemblies (1), at this time, the second wire (271) is wound in the winding frame (25). Step two, according to the inner diameter of the drilling pipe, the spacing of the plurality of traction wheels (321) is flexibly adjusted, the third motor (345) is started to drive the second worm (344) to drive the second worm gear (343) to rotate, thereby driving the first longitudinal shaft (342) and the first gear (341) to rotate, and then controlling the transmission gear ring (34) and the adjusting ring frame (331) to rotate, driving the plurality of connecting rods (332) and the adjusting longitudinal shaft (333) to rotate, while the adjusting longitudinal shaft (333) slides in the adjusting inclined frame (33), controlling the plurality of telescopic slide rods (32) and the traction wheels (321) to move away from each other, and conversely, by controlling the adjusting ring frame (331) to rotate in the opposite direction, the plurality of connecting rods (332) and the adjusting longitudinal shaft (333) are driven to rotate in the opposite direction, while the adjusting longitudinal shaft (333) slides in the adjusting inclined frame (33) in the opposite direction, the plurality of telescopic slide rods (32) and the traction wheels (321) are controlled to move towards each other, the spacing of the plurality of traction wheels (321) is flexibly adjusted, and the plurality of traction wheels (321) contact the inner wall of the drilling pipe; Step three, place the plurality of logging assemblies (1) in the drilling pipe in oil exploration, start the second motor (324) to drive the first worm (323) to drive the first worm gear (322) and the traction wheel (321) to rotate, thereby driving the traction mechanism (3) to move in the drilling pipe, and then driving the logging mechanism (2) to move in the drilling pipe; When moving to one of the monitoring points, the front end logging assembly (1) is driven to continue to stretch out, without affecting the continued exploration, and the monitoring point can be monitored in real time, and at the same time, the first motor (281) in the end logging assembly (1) is started to drive the second bevel gear (282) to drive the first bevel gear (28) to rotate, thereby controlling the winding frame (25) to rotate, the second wire (271) in the logging assembly (1) is unwound, and the conductive rotary connection between the first wire (27) and the second wire (271) is not affected, so that the monitoring parameters can be transmitted through the first wire (27) and the second wire (271); Until moving to a plurality of monitoring points, each monitoring point corresponds to a set of logging assemblies (1) for real-time monitoring, a plurality of logging probes (23) are used to monitor a plurality of geological target strata in real time, and various parameters are collected and recorded, and the parameters are stably transmitted through the first wire (27), the second wire (271) and the third wire (38), thereby improving the logging effect during oil exploration; Wherein, the fourth motor (355) is opened to drive the third worm (354) to drive the third worm gear (353) and the second longitudinal shaft (352) to rotate, and then drive the second gear (351) to control the clamping gear (35) to rotate, thereby driving the connecting clamping pipe (3501) to rotate, and driving the entire logging mechanism (2) to rotate, adjusting the angle of the logging probe (23) in the drilling pipe, facilitating the logging probe (23) to conduct comprehensive monitoring in the drilling pipe, and not affecting the conductive rotary connection between the third wire (38) and the first wire (27); Step four, after monitoring, gradually withdraw from the front end logging assembly (1) drilling pipe, while winding the second wire (271).

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