A multi-parameter comprehensive logging device

Abstract

The present invention discloses a multi-parameter comprehensive logging device, including a fixed seat installed at the wellhead of an exploration well, an opening and closing wellhead sealing mechanism installed on the fixed seat, an anti-falling type power-assisting mechanism arranged above the opening and closing wellhead sealing mechanism, two vertical mounting arms symmetrically arranged on the fixed seat, the anti-falling type power-assisting mechanism arranged between the two vertical mounting arms, and the anti-falling type power-assisting mechanism is connected to the two vertical mounting arms via an opening and closing type vertical adjustment mechanism, at least one outward-stretching type node anti-deviation mechanism is arranged vertically in the exploration well; the pulling rope connected to the detector is unwound by a winch, and passes through the anti-falling type power-assisting mechanism, the opening and closing wellhead sealing mechanism, the fixed seat and each outward-stretching type node anti-deviation mechanism in turn. The present invention can effectively assist in the release and recovery of the pulling rope, and ensure the smooth movement of the pulling rope, while avoiding safety accidents caused by blowouts in exploration wells. The present invention is applicable to the technical field of oil exploration.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum exploration well detection, and in particular relates to a multi-parameter comprehensive well logging device. Background Art

[0002] At present, in the process of detecting an exploration well, it is necessary to use a logging vehicle to gradually unwind the pulling rope connected to the detector so that the detector gradually extends into the exploration well. However, in actual operations, under the winding and unwinding of the winch and the traction of the detector, the lowering or recovery operation of the pulling rope cannot be ensured to be smooth, that is, the lowering or recovery is relatively laborious, and the pulling rope often bends when the power is insufficient; in order to overcome this defect, the existing means are to increase the traction force of the winch and / or the detector, so that the efficiency of the pulling rope can be improved, but during the process of retraction, the pulling rope frequently jumps, causing the detector to deviate from the center line of the exploration well, resulting in reduced exploration accuracy; and due to the release or recovery of the pulling rope, jumping, shaking, etc., the detector is driven to move and hit the well wall, causing damage to the detector. At the same time, in the process of detecting an exploration well, due to the different pressures in the well (water pressure or air pressure, etc.), blowouts may occur. If no protective measures are taken at the wellhead, safety accidents are very likely to occur. Summary of the invention

[0003] The present invention provides a multi-parameter comprehensive logging device, which is used to assist in the release and recovery of a pulling rope and ensure the smooth movement of the pulling rope, while avoiding safety accidents caused by blowout of an exploration well.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A multi-parameter comprehensive logging device comprises a fixed seat installed at the wellhead of an exploration well, an opening and closing wellhead sealing mechanism is installed on the fixed seat, an anti-falling power-assisting mechanism is arranged above the opening and closing wellhead sealing mechanism, two vertical mounting arms are symmetrically arranged on the fixed seat, the anti-falling power-assisting mechanism is arranged between the two vertical mounting arms, and the anti-falling power-assisting mechanism is connected to the two vertical mounting arms via an opening and closing vertical adjustment mechanism, and at least one outward-stretched node anti-deviation mechanism is vertically arranged in the exploration well; a pulling rope connected to the detector is unwound by a winch, and passes through the anti-falling power-assisting mechanism, the opening and closing wellhead sealing mechanism, the fixed seat and each outward-stretched node anti-deviation mechanism in turn.

[0005] Furthermore, the opening and closing wellhead sealing mechanism includes two closed half-covers arranged on a fixed seat, a sliding seat is constructed on both sides of each of the closed half-covers, two parallel transverse slide rails are constructed on both sides of the fixed seat, each of the sliding seats is slidably connected to the corresponding transverse slide rail, the two sliding seats located on the same side of the two closed half-covers are respectively threadedly connected to the forward threaded portion and the reverse threaded portion of the transverse transmission screw, and transfer ears are constructed at both ends of each transverse slide rail, and the two ends of the transverse transmission screw are rotatably connected to the two transfer ears.

[0006] Furthermore, a conducting half sleeve is constructed at the upper end of each of the closed half covers, and an introduction half nozzle is constructed at the upper end of the conducting half sleeve; when the two closed half covers are buckled together to form a complete closed cover, the two conducting half sleeves are buckled together to form a complete conducting sleeve, and the two introduction half nozzles are buckled together to form a complete introduction nozzle, and the pulling rope passes through the introduction nozzle, the conducting sleeve and the closed cover in sequence.

[0007] Furthermore, a rubber half sleeve is fixed on the inner circumferential wall of each conductive half sleeve, a dielectric cavity is formed between the rubber half sleeve and the conductive half sleeve, and a dielectric joint pipe connected to the dielectric cavity is constructed on the outer circumferential wall of the conductive half sleeve; when the two conductive half sleeves are buckled together, the two rubber half sleeves are buckled together to form a complete rubber sleeve.

[0008] Furthermore, the anti-falling power-assisting mechanism includes two rolling wheel groups symmetrically arranged on both sides of the pulling rope, the two rolling wheel groups are respectively connected to two vertical mounting plates, each rolling wheel group includes a plurality of power-assisting rollers arranged along the vertical interval, each power-assisting roller is connected to the corresponding vertical mounting plate through an adapter seat, and a transmission outer gear ring is coaxially installed on each power-assisting roller, and the two transmission outer gear rings on the corresponding two power-assisting rollers in the two rolling wheel groups are meshed with each other, and each power-assisting roller on one rolling wheel group is coaxially equipped with a transmission sprocket, and these transmission sprockets are connected by transmission chain, and an power-assisting roller of the other rolling wheel group is coaxially connected to the output shaft of the driving motor, and the two vertical mounting plates are transmission connected to the opening and closing vertical adjustment mechanism.

[0009] Furthermore, the power-assisted roller includes a wheel body coaxially assembled on a mounting wheel axle, an inner-concave elastic rolling ring is installed on the outer peripheral surface of the wheel body, the elastic rolling ring coincides with the axis of the wheel body, and an air-filling chamber is formed between the elastic rolling ring and the wheel body, an air guide channel is constructed in the mounting wheel axle, and an air guide hole connecting the guide channel and the air-filling chamber is opened on the mounting wheel axle, one end of the mounting wheel axle is rotatably connected to an intake branch pipe, the intake branch pipe is connected to an intake main pipe, and an intake control valve is installed on the intake main pipe.

[0010] Furthermore, the opening and closing vertical adjustment mechanism includes two assembled sliders which are respectively slidably assembled on two vertical mounting arms, and an adjustment slider which is slidably connected to the vertical mounting arm is arranged above each of the assembled sliders. The assembled slider is connected to the adjustment slider via a hard spring, the adjustment slider is rotatably connected to the lower end of the vertical adjustment screw, the vertical adjustment screw is threadedly connected to the upper end of the vertical mounting arm, and the two assembled sliders are transmission connected to the two vertical mounting plates.

[0011] Furthermore, a transverse guide rod and a transverse screw rod are connected along the vertical intervals on each of the assembled sliders, the transverse guide rod is slidably connected to the corresponding vertical mounting plate, and the transverse screw rod is threadedly connected to the corresponding vertical mounting plate; the thread rotation directions of the two transverse screw rods on the two assembled sliders are opposite, and the ends of the two transverse screw rods that are close to each other are coaxially connected, and the ends that are away from each other are rotationally connected to the corresponding assembled sliders; the ends of the two transverse guide rods that are close to each other are coaxially connected, and the ends that are away from each other are fixedly connected to the corresponding assembled sliders.

[0012] Furthermore, the outward-stretched node anti-deviation mechanism includes an upper matching set and a lower matching set up in the upper and lower parts, and the outward extension arms of multiple curved support arms are evenly hinged to the outer peripheral wall of the upper matching set along the circumference of the upper matching set, and the inner oblique arm of each curved support arm is hinged with a hinged rod, and the end of the hinged rod away from the curved support arm is hinged to the outer peripheral wall of the lower matching set, the upper end of the inner oblique arm and the lower end of the outward extension arm are connected to each other, and an abutment joint is constructed at the lower end of the inner oblique arm, and two vertical electric cylinders are symmetrically arranged between the upper matching set and the lower matching set, and the pulling rope passes through the upper matching set and the lower matching set in turn.

[0013] Furthermore, the upper assembly includes two upper half sleeves spliced ​​together, the upper ends of the two upper half sleeves are connected by two first fixed half rings, and the lower ends of the two upper half sleeves are connected by another two first fixed half rings; the lower assembly includes two lower half sleeves spliced ​​together, the upper ends of the two lower half sleeves are connected by two second fixed half rings, and the lower ends of the two lower half sleeves are connected by another two second fixed half rings, and the hinged rod is an elastic telescopic rod.

[0014] Due to the adoption of the above structure, the technical progress achieved by the present invention compared with the prior art is that: the present invention assists the pulling rope through the anti-falling assist mechanism, ensuring that the pulling rope is smoothly released downward or moves upward and is wound on the winch, and when the winch or the detector overspeeds or stalls, the pulling rope can be effectively prevented from being loose under the restriction of the anti-falling assist mechanism. Due to the adoption of an opening and closing wellhead sealing mechanism, the wellhead of the exploration well can be sealed during the detection process to avoid blowouts. And every time the pulling rope is lowered a certain distance, an outward-stretched node anti-deviation mechanism is assembled on the pulling rope. When conducting exploration, these outward-stretched node anti-deviation mechanisms are controlled to be supported on the inner wall of the exploration well, and then the pulling rope is divided into multiple nodes for support correction, so as to realize the functions of anti-deviation, anti-shake and anti-sway of the pulling rope, thereby improving the accuracy of detection and avoiding the situation where the detector collides with the inner wall of the exploration well and causes damage; and in order to accurately detect, when accurately detecting and recording data, the outward-stretched node anti-deviation mechanism is supported on the inner wall of the exploration well, and after the detection is completed, the outward-stretched node anti-deviation mechanism is released. To support the exploration well, the pulling rope is then continuously released, so that the externally stretched node anti-deviation mechanism continues to be positioned downward along with the pulling rope, and these externally stretched node anti-deviation mechanisms can provide a counterweight for the pulling rope, and cooperate with the pulling of the detector so that the pulling rope can move downward smoothly; the present invention can also perform rough detection, that is, control the externally stretched node anti-deviation mechanism to be close to but not in contact with the inner wall of the exploration well, so that the externally stretched node anti-deviation mechanism can prevent the pulling rope from shaking significantly, but cannot guarantee that the pulling rope will not twist. This method of rough detection has a higher detection efficiency, but a slightly lower accuracy. In summary, the present invention can effectively assist in the release and recovery of the pulling rope, and ensure the smooth movement of the pulling rope, prevent damage to the detector, and avoid safety accidents caused by blowouts of the exploration well. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention installed at the wellhead of an exploration well; Figure 2 This is a cross-sectional view of the structure of an embodiment of the present invention installed at the wellhead of an exploration well; Figure 3 for Figure 2 A magnified view of the structure of the middle A part; Figure 4 It is a structural schematic diagram of an embodiment of the present invention; Figure 5 It is a structural schematic diagram of the connection between the fixing seat and the opening and closing wellhead sealing mechanism according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of an open and close wellhead sealing mechanism in an open state according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of two vertical installation arms in an embodiment of the present invention connected to an anti-falling type assisting mechanism through an opening and closing type vertical adjustment mechanism; Figure 8 for Figure 7 A schematic diagram of another angle of the structure shown; Fig. 9 for Figure 7 a top view of the structure shown; Fig.10 It is an axial structural cross-sectional view of the connection between the power-assisting roller, the transmission outer gear ring, the transmission sprocket and the adapter seat according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the structure of the power-assisting roller, the transmission outer gear ring, the transmission sprocket and the adapter after being disassembled according to an embodiment of the present invention; Fig.12 It is a structural schematic diagram of an outward-stretched node anti-deviation mechanism according to an embodiment of the present invention; Fig.13 It is a schematic diagram of the structure of the disassembled outward-stretched node anti-deviation mechanism according to an embodiment of the present invention; Fig.14 It is a schematic diagram of the partial structure of the outward-stretched node anti-deviation mechanism according to an embodiment of the present invention.

[0017] Labeled parts: 100-exploration well, 200-fixed seat, 201-seat body, 202-casing, 203-horizontal slide rail, 204-adapter ear, 205-adapter arm, 206-vertical mounting arm, 207-vertical slide, 300-opening and closing wellhead sealing mechanism, 301-closing half cover, 302-sealing edge, 303-discharge pipe, 304-conducting half sleeve, 305-rubber half sleeve, 306-medium cavity, 307-medium joint pipe, 308-introduction half nozzle, 309-sliding seat, 310-transverse transmission screw, 311-first operating hand wheel, 400-anti-falling power-assisting mechanism, 401-wheel body, 402-elastic rolling ring, 403-inflating cavity, 404-mounting wheel axle, 405-air guide channel, 406-air guide hole, 407-transmission sprocket, 408-transmission outer gear ring, 409-adapter seat, 410-drive Motor, 411-transmission chain, 412-vertical mounting plate, 413-intake manifold, 414-intake control valve, 415-intake branch pipe, 500-opening and closing vertical adjustment mechanism, 501-assembled slider, 502-transverse screw rod, 503-transverse guide rod, 504-second operating handwheel, 505-adjustable slider, 506-hard spring, 507-vertical adjustment screw rod, 508-third operating handwheel, 600-external node anti-deviation mechanism, 601-upper half sleeve, 602-first connecting ear, 603-first fixed half ring, 604-lower half sleeve, 605-second connecting ear, 606-outward extension arm, 607-inward inclined arm, 608-butt joint, 609-articulated rod, 610-second fixed half ring, 611-vertical electric cylinder, 612-plug-in tube, 613-plug-in rod, 700-pulling rope, 800-detector. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] The present invention discloses a multi-parameter comprehensive logging device, such as Figure 1-14As shown, it includes a fixed seat 200, an opening and closing wellhead sealing mechanism 300, an anti-falling type assisting mechanism 400 and an outward-stretching type node anti-deviation mechanism 600. Among them, the fixed seat 200 is installed at the wellhead of the exploration well 100, the opening and closing wellhead sealing mechanism 300 is installed on the fixed seat 200, and the anti-falling type assisting mechanism 400 is arranged above the opening and closing wellhead sealing mechanism 300. The fixed seat 200 of the present invention includes a seat body 201, and a casing 202 is installed at the center of the seat body 201. The casing 202 extends downward from the wellhead of the exploration well 100 into the exploration well 100 in the vertical direction, and the outer peripheral wall of the casing 202 is in close contact with the inner peripheral wall of the exploration well 100, so that it plays a supporting role on the wellhead, thereby preventing the wellhead of the exploration well 100 from deformation, collapse, etc. during the exploration process. Two transfer arms 205 are symmetrically constructed at the upper end of the seat body 201, and vertical mounting arms 206 are fixed on the two transfer arms 205, respectively. The two vertical mounting arms 206 are symmetrically arranged on both sides of the anti-falling type assist mechanism 400, and the anti-falling type assist mechanism 400 is connected to the two vertical mounting arms 206 through an opening and closing type vertical adjustment mechanism 500. The number of the externally stretched node anti-deviation mechanism 600 of the present invention is at least one. When the number of the externally stretched node anti-deviation mechanism 600 is multiple, these externally stretched node anti-deviation mechanisms 600 are arranged in the exploration well 100 at intervals along the vertical direction. One end of the pulling rope 700 (logging cable) is wound on the winch, and the other end of the pulling rope 700 is connected to the detector 800, and the pulling rope 700 is unwound by the winch, and then passes through the anti-falling type assist mechanism 400, the opening and closing type wellhead sealing mechanism 300, the fixed seat 200 and each externally stretched node anti-deviation mechanism 600 in sequence. The working principle and advantages of the present invention are as follows: the present invention assists the pulling rope 700 through the anti-falling assist mechanism 400, ensuring that the pulling rope 700 is smoothly released downward or moves upward and is wound on the winch, and when the winch or the detector 800 overspeeds or stalls, the pulling rope 700 can be effectively prevented from being loosened under the restriction of the anti-falling assist mechanism 400. The present invention adopts an opening and closing wellhead sealing mechanism 300, so that the wellhead of the exploration well 100 can be sealed during the detection process to avoid blowout.And every time the pulling rope 700 is lowered a certain distance, an externally stretched node anti-deviation mechanism 600 is assembled on the pulling rope 700. When conducting exploration, these externally stretched node anti-deviation mechanisms 600 are controlled to be supported on the inner wall of the exploration well 100, and then the pulling rope 700 is divided into multiple nodes for support correction, so as to realize the functions of anti-deviation, anti-shake and anti-sway of the pulling rope 700, thereby improving the accuracy of detection and avoiding the situation where the detector 800 collides with the inner wall of the exploration well 100 and causes damage; and for the purpose of accurate detection, when accurately detecting and recording data, the externally stretched node anti-deviation mechanism 600 is supported on the inner wall of the exploration well 100. After the detection is completed, the externally stretched node anti-deviation mechanism 600 is released from the exploration. The support of the exploration well 100, after which the pulling rope 700 is continuously released, so that the externally stretched node anti-deviation mechanism 600 continues to be positioned downward with the pulling rope 700, and these externally stretched node anti-deviation mechanisms 600 can provide a counterweight for the pulling rope 700, and cooperate with the pulling of the detector 800, so that the pulling rope 700 can move downward smoothly; the present invention can also perform rough detection, that is, control the externally stretched node anti-deviation mechanism 600 to be close to but not in contact with the inner wall of the exploration well 100, so that the externally stretched node anti-deviation mechanism 600 can prevent the pulling rope 700 from shaking significantly, but cannot guarantee that the pulling rope 700 will not twist. This method of rough detection has a higher detection efficiency, but a slightly lower accuracy. In summary, the present invention can effectively assist in the release and recovery of the pulling rope 700, and ensure the smooth movement of the pulling rope 700, prevent the damage of the detector 800, and avoid safety accidents caused by blowouts of the exploration well 100.

[0020] As a preferred embodiment of the present invention, Figure 5 , 6As shown, the opening and closing wellhead sealing mechanism 300 includes two closed half covers 301 and two transverse transmission screws 310. The two closed half covers 301 are arranged on the fixed seat 200 in a relative manner, and a sealing edge 302 is constructed at the lower end of each closed half cover 301, and the sealing edge 302 contacts the upper end surface of the fixed seat 200. A discharge pipe 303 is constructed on one of the closed half covers 301, and a sealing cap is threadedly connected to the upper end of the discharge pipe 303. The discharge pipe 303 can be connected to a predetermined area through a hose, so as to facilitate the gas or liquid blown out of the exploration well 100 to be connected to the predetermined area. In this embodiment, a sliding seat 309 is constructed on both sides of each closed half cover 301, and two transverse slide rails 203 are constructed on both sides of the fixed seat 200. The two transverse slide rails 203 are parallel to each other, and each sliding seat 309 is slidably connected to the corresponding transverse slide rail 203. In this embodiment, a forward threaded portion and a reverse threaded portion are constructed on the transverse transmission screw 310 along its axial direction at intervals. The two sliding seats 309 located on the same side of the two closed half covers 301 are respectively threadedly connected to the forward threaded portion and the reverse threaded portion. A transfer ear 204 is constructed at both ends of each transverse slide rail 203. The two ends of the transverse transmission screw 310 are respectively rotatably connected to the two transfer ears 204. A first operating handwheel 311 is coaxially assembled at one end of the transverse transmission screw 310. The working principle and advantages of this embodiment are as follows: this embodiment rotates the two first operating hand wheels 311 synchronously, so that the two transverse transmission screws 310 drive the two closed half covers 301 to move closer to or away from each other during the synchronous rotation; when the two closed half covers 301 are close to each other and buckled together, the two close the wellhead of the exploration well 100 and only allow the pulling rope 700 to pass through; when the two closed half covers 301 move away from each other and are completely separated, the wellhead of the exploration well 100 is completely exposed, thereby facilitating the installation of the outward-stretched node anti-deviation mechanism 600 on the pulling rope 700, and the pulling rope 700 moves therewith and enters into the exploration well 100, and then the two closed half covers 301 are driven to buckle together.

[0021] As a preferred embodiment of the present invention, Figure 3 , 5As shown, a conducting half sleeve 304 is constructed at the upper end of each closed half cover 301, and an introduction half nozzle 308 is constructed at the upper end of the conducting half sleeve 304. When the two closed half covers 301 are buckled together to form a complete closed cover, the two conducting half sleeves 304 are buckled together to form a complete conducting sleeve, and the two introduction half nozzles 308 are buckled together to form a complete introduction nozzle, and the pulling rope 700 passes through the introduction nozzle, the conducting sleeve and the closed cover in sequence. The function of the introduction nozzle is to prevent the pulling rope 700 from being scratched when it shakes or deflects, and to ensure that the pulling rope 700 smoothly enters the conducting sleeve; the conducting sleeve of this embodiment is used to limit the shaking and deflection of the pulling rope 700 at the closed cover. In order to adapt to the pulling rope 700 of different radial lengths and remove the dirt such as mud attached to the pulling rope 700 during the winding process of the pulling rope 700, the present embodiment adopts the following measures: a rubber half sleeve 305 is fixed on the inner peripheral wall of each conducting half sleeve 304, a medium cavity 306 is formed between the rubber half sleeve 305 and the conducting half sleeve 304, and a medium joint pipe 307 is constructed on the outer peripheral wall of the conducting half sleeve 304, and the medium joint pipe 307 is connected with the medium cavity 306. When the two conducting half sleeves 304 are buckled together, the two rubber half sleeves 305 are buckled together to form a complete rubber sleeve. In this embodiment, two medium cavities 306 are inflated through two medium joint tubes 307, so that the radial length of the rubber sleeve composed of two rubber half sleeves 305 is changed, thereby adapting to the passage of the traction rope 700 of the corresponding radial length, thereby limiting the deflection and shaking of the traction rope 700, and most of the dirt on the traction rope 700 can be removed during the winding process of the traction rope 700; and in this embodiment, excessive ventilation can be used to enable the rubber sleeve to tighten the traction rope 700 to prevent falling.

[0022] As a preferred embodiment of the present invention, Figure 7-9As shown, the anti-falling power-assisting mechanism 400 includes a driving motor 410, two rolling wheel groups and two vertical mounting plates 412. The two rolling wheel groups are symmetrically arranged on both sides of the pulling rope 700, and the two rolling wheel groups are respectively connected to the two vertical mounting plates 412. Each rolling wheel group includes a plurality of power-assisting rollers, which are arranged at intervals in the vertical direction. Each power-assisting roller is rotatably connected to an adapter 409, and the adapter 409 is detachably connected to the corresponding vertical mounting plate 412. A transmission outer gear ring 408 is coaxially installed on the power-assisting roller, and the two transmission outer gear rings 408 on the two corresponding power-assisting rollers in the two rolling wheel groups are meshed with each other. A transmission sprocket 407 is coaxially mounted on each power-assisting roller on one of the rolling wheel groups, and these transmission sprockets 407 are connected by transmission chain 411. One power-assisting roller in the other rolling wheel group is coaxially connected to the output shaft of the driving motor 410, and two vertical mounting plates 412 are connected by transmission to the opening and closing vertical adjustment mechanism 500. The working principle and advantage of this embodiment are: the pulling rope 700 of this embodiment passes through the gap between the two rolling wheel groups, and under the drive of the driving motor 410, each power-assisting roller in one of the rolling wheel groups rotates synchronously in the same direction, under the action of the transmission outer gear ring 408, each power-assisting roller in the other rolling wheel group rotates synchronously in the same direction, and the corresponding two power-assisting rollers in the two rolling wheel groups rotate relative to each other, thereby rolling and pushing the pulling rope 700, playing the role of assisting the pulling rope 700 to be lowered or recovered upward. And it can effectively avoid the shaking or deflection of the pulling rope 700 when the power of the winch and / or the detector 800 suddenly changes.

[0023] As a preferred embodiment of the present invention, Figure 7 , 10As shown in Figures 11, the power-assisted roller includes a wheel body 401, a mounting axle 404 and an elastic rolling ring 402. The mounting axle 404 is rotatably mounted on the adapter 409, the wheel body 401 is coaxially assembled on the mounting axle 404, and the elastic rolling ring 402 is mounted on the outer peripheral surface of the wheel body 401. The elastic rolling ring 402 is in a concave arc shape, and the material of the elastic rolling ring 402 is rubber material, and the axis of the elastic rolling ring 402 coincides with the axis of the wheel body 401. In this embodiment, an air-filling cavity 403 is formed between the elastic rolling ring 402 and the wheel body 401, an air-guiding channel 405 is constructed in the mounting axle 404, and an air-guiding hole 406 is opened on the mounting axle 404, and the air-guiding hole 406 connects the guiding channel and the air-filling cavity 403. In this embodiment, an air intake branch pipe 415 is rotatably connected at one end of each mounting axle 404, each air intake branch pipe 415 is connected to an air intake main pipe 413, an air intake control valve 414 is installed on the air intake main pipe 413, and the air intake main pipe 413 is a rubber hose, and the air intake branch pipe 415 is connected to the mounting axle 404 by a quick connector. The working principle and advantages of this embodiment are: in this embodiment, each air intake branch pipe 415 is ventilated through the air intake main pipe 413, so that high-pressure gas enters each inflation cavity 403, so that the elastic rolling ring 402 gradually expands outward, so that the gap between the two opposite power-assisting rollers can be adjusted, thereby adapting to the rolling transportation of the pulling rope 700 with different radial lengths. Moreover, when the winch releases the pulling rope 700 at an excessive speed, the friction between the elastic rolling ring 402 and the pulling rope 700 enables the two rolling wheel groups to clamp the pulling rope 700. Under the action of the two rolling wheel groups, the pulling rope 700 can be stably assisted in conveying.

[0024] As a preferred embodiment of the present invention, Figure 7As shown, the opening and closing vertical adjustment mechanism 500 includes two assembled sliders 501, two adjustable sliders 505 and two vertical adjustment screws 507. The two vertical mounting arms 206 are respectively provided with vertical slide grooves 207, and the two assembled sliders 501 are respectively slidably assembled in the two vertical slide grooves 207, so as to achieve the purpose of sliding assembly of the two assembled sliders 501 and the two vertical mounting arms 206. The two adjustable sliders 505 are respectively arranged above the two assembled sliders 501, and each adjustable slider 505 is slidably assembled in the corresponding vertical slide groove 207, and the assembled slider 501 is connected to the corresponding adjustable slider 505 through a hard spring 506. Each adjustable slider 505 is rotatably connected to the lower end of the corresponding vertical adjustment screw 507, and the vertical adjustment screw 507 is threadedly connected to the upper end of the corresponding vertical mounting arm 206. A third operating hand wheel 508 is mounted on the upper end of each vertical adjustment screw 507, and the two assembled sliders 501 are transmission-connected to the two vertical mounting plates 412. In this embodiment, a transverse guide rod 503 and a transverse screw rod 502 are connected to each assembled slider 501, and the transverse guide rod 503 and the transverse screw rod 502 are arranged at intervals in the vertical direction. Among them, the transverse guide rod 503 is slidably connected to the corresponding vertical mounting plate 412, and the transverse screw rod 502 is threadedly connected to the corresponding vertical mounting plate 412. The threads of the two transverse screw rods 502 on the two assembled sliders 501 are in opposite directions, and the ends of the two transverse screw rods 502 that are close to each other are coaxially connected together, and the ends of the two transverse screw rods 502 that are far away from each other are respectively rotatably connected to the corresponding assembled sliders 501, and a second operating hand wheel 504 is installed at the end of one of the transverse screw rods 502. The ends of the two transverse guide rods 503 that are close to each other are coaxially connected together, and the ends of the two transverse guide rods 503 that are far away from each other are respectively fixedly connected to the corresponding assembled sliders 501. The working principle and advantage of this embodiment are: this embodiment rotates the second operating hand wheel 504, so that the transverse screw rod 502 drives the two vertical mounting plates 412 to approach or move away from each other, so that the two rolling wheel groups are approached or moved away from each other, and then the rolling gap between the two rolling wheel groups is adjusted to adapt to the rolling transportation of the pulling ropes 700 with different radial lengths. Moreover, in this embodiment, the rolling gap between the two rolling wheel groups can be adjusted to be much larger than the radial length of the pulling rope 700, so that the power assisting and anti-falling functions of the anti-falling power assisting mechanism 400 on the pulling rope 700 are released.When the pulling force received by the pulling rope 700 is too large and the two rolling wheel groups are in a state of assisting the pulling rope 700, the friction between the two rolling wheel groups and the pulling rope 700 prevents the pulling rope 700 from passing through the rolling gap at an excessive speed, and a part of the external force is transmitted to the two assembled sliders 501 through the two rolling wheel groups. The two assembled sliders 501 transmit this part of the external force to the two hard springs 506. The hard springs 506 undergo elastic deformation and absorb this part of the external force, thereby avoiding relative sliding between the two rolling wheel groups and the pulling rope 700 to damage the outer skin of the pulling rope 700 or the outer peripheral surface of the elastic rolling ring 402. In this embodiment, the two third operating hand wheels 508 can be rotated synchronously so that the two vertical adjustment screws 507 drive the two adjustment sliders 505 to move vertically, so that the adjustment slider 505 drives the assembled slider 501 to move vertically through the hard spring 506, and finally drives the two rolling wheel groups to move vertically to a predetermined displacement through the transverse guide rod 503 and the transverse screw rod 502, so that the distance between the anti-falling power-assisting mechanism 400 and the opening and closing wellhead sealing mechanism 300 and the winch reaches the expected distance, thereby ensuring the smooth transportation of the pulling rope 700 located at the anti-falling power-assisting mechanism 400, the opening and closing wellhead sealing mechanism 300 and the winch, preventing the occurrence of deflection, shaking, jumping, etc., and preventing the problem of loosening of the pulling rope 700 due to the over-speed of the winch in the process of winding and releasing the pulling rope 700.

[0025] As a preferred embodiment of the present invention, Fig.12 , 13As shown, the outward-stretched node anti-deviation mechanism 600 includes an upper assembly, a lower assembly, two vertical electric cylinders 611, a plurality of curved support arms and a plurality of articulated rods 609. The upper assembly and the lower assembly are arranged up and down, and the plurality of curved support arms are evenly arranged along the circumference of the upper assembly, and each curved support arm has an outward extension arm 606 and an inner oblique arm 607, the upper end of the outward extension arm 606 is hinged to the outer peripheral wall of the upper assembly, and a butt joint 608 is constructed at the lower end of the inner oblique arm 607, one end of the articulated rod 609 is hinged to the inner oblique arm 607, and the other end of the articulated rod 609 is hinged to the outer peripheral wall of the lower assembly, and the upper end of the inner oblique arm 607 is connected to the lower end of the outward extension arm 606. In this embodiment, two first connecting ears 602 are symmetrically constructed on the upper mounting assembly, and two second connecting ears 605 are symmetrically constructed on the lower mounting assembly. Two vertical electric cylinders 611 are symmetrically arranged between the upper mounting assembly and the lower mounting assembly. The upper and lower ends of the vertical electric cylinders 611 are respectively fixed to the first connecting ears 602 and the second connecting ears 605. A battery is installed on the upper mounting assembly, and the battery is electrically connected to the two vertical electric cylinders 611. The pulling rope 700 passes through the upper supporting assembly and the lower supporting assembly in sequence, that is, the upper supporting assembly and the lower supporting assembly are mounted outside the pulling rope 700. Under the action of the gravity of the externally-tensioned node anti-deviation mechanism 600 itself and the friction between the pulling rope 700 and the upper supporting assembly and the lower supporting assembly, the pulling rope 700 will not undergo vertical relative displacement with the externally-tensioned node anti-deviation mechanism 600. In this way, during the lowering or recovery of the pulling rope 700, the externally-tensioned node anti-deviation mechanism 600 moves vertically synchronously with the pulling rope 700. In order to further improve the connection strength between the externally-tensioned node anti-deviation mechanism 600 and the pulling rope 700, the upper supporting assembly and the lower supporting assembly can be controlled to move closer to each other by controlling the action of the two vertical electric cylinders 611. In this way, the inner oblique arm 607 gradually approaches the pulling rope 700, and finally all the abutment joints 608 are connected to the outer peripheral wall of the pulling rope 700, thereby improving the connection strength between the externally-tensioned node anti-deviation mechanism 600 and the pulling rope 700. When it is necessary to control the outward-stretched node anti-deviation mechanism 600 to support on the inner circumferential wall of the exploration well 100, the two vertical electric cylinders 611 are controlled to move synchronously, so that the upper assembly and the lower assembly are separated from each other, and under the action of the articulated rod 609, the bending support arm gradually stretches outward and supports on the inner circumferential wall of the exploration well 100. In order to facilitate the disassembly and assembly of the outward-stretched node anti-deviation mechanism 600 and the pulling rope 700, the measures taken in this embodiment are as follows: the upper assembly includes two upper half sleeves 601 spliced ​​to each other, the upper ends of the two upper half sleeves 601 are connected by two first fixed half rings 603, and the lower ends of the two upper half sleeves 601 are connected by another two first fixed half rings 603. The lower assembly includes two lower half sleeves 604 spliced ​​to each other, the upper ends of the two lower half sleeves 604 are connected by two second fixed half rings 610, and the lower ends of the two lower half sleeves 604 are connected by another two second fixed half rings 610.The hinged rod 609 of this embodiment is an elastic telescopic rod, so that each curved support arm can be supported at an irregular position of the inner wall of the exploration well 100; specifically, as shown. Fig.14 As shown, the elastic telescopic rod includes a plug-in tube 612 and a plug-in rod 613 that are inserted into each other. A connecting spring is installed in the plug-in tube 612, and the connecting spring connects the plug-in tube 612 and the plug-in rod 613. The ends of the plug-in tube 612 and the plug-in rod 613 that are away from each other are respectively hinged with the lower assembly and the inner inclined arm 607. The vertical electric cylinder 611 drives all the bending support arms to open outward. During the opening process, some bending support arms are supported at positions corresponding to the inner circumferential wall of the exploration well 100, and other bending support arms will continue to expand outward until they are supported on the inner wall of the exploration well 100. In this process, the bending support arms that first contact the inner circumferential wall of the exploration well 100 are compressed and transmit the external force to the elastic telescopic rod, so that the part of the plug-in rod 613 inserted into the plug-in tube 612 gradually increases; that is, when each bending support arm in the outward expansion node anti-deviation mechanism 600 is supported on the irregular inner circumferential wall of the exploration well 100, the telescopic length of the elastic telescopic rod is different.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A multi-parameter comprehensive logging device, characterized in that: It includes a fixed seat installed at the wellhead of the exploration well, an opening and closing wellhead sealing mechanism is installed on the fixed seat, an anti-falling power-assisting mechanism is arranged above the opening and closing wellhead sealing mechanism, two vertical mounting arms are symmetrically arranged on the fixed seat, the anti-falling power-assisting mechanism is arranged between the two vertical mounting arms, and the anti-falling power-assisting mechanism is connected to the two vertical mounting arms via an opening and closing vertical adjustment mechanism, and at least one outward-stretched node anti-deviation mechanism is vertically arranged in the exploration well; the pulling rope connected to the detector is unwound by a winch, and passes through the anti-falling power-assisting mechanism, the opening and closing wellhead sealing mechanism, the fixed seat and each outward-stretched node anti-deviation mechanism in turn.

2. A multi-parameter comprehensive logging device according to claim 1, characterized in that: The opening and closing wellhead sealing mechanism includes two closed half-covers arranged on a fixed seat, a sliding seat is constructed on both sides of each of the closed half-covers, two parallel transverse slide rails are constructed on both sides of the fixed seat, each of the sliding seats is slidably connected to the corresponding transverse slide rail, the two sliding seats located on the same side of the two closed half-covers are respectively threadedly connected to the forward threaded portion and the reverse threaded portion of the transverse transmission screw, and transfer ears are constructed at both ends of each transverse slide rail, and the two ends of the transverse transmission screw are rotatably connected to the two transfer ears.

3. A multi-parameter comprehensive logging device according to claim 2, characterized in that: A conducting half sleeve is constructed at the upper end of each closed half cover, and an introduction half nozzle is constructed at the upper end of the conducting half sleeve; when the two closed half covers are buckled together to form a complete closed cover, the two conducting half sleeves are buckled together to form a complete conducting sleeve, and the two introduction half nozzles are buckled together to form a complete introduction nozzle, and the pulling rope passes through the introduction nozzle, the conducting sleeve and the closed cover in sequence.

4. A multi-parameter comprehensive logging device according to claim 3, characterized in that: A rubber half sleeve is fixed on the inner circumferential wall of each conductive half sleeve, a dielectric cavity is formed between the rubber half sleeve and the conductive half sleeve, and a dielectric joint pipe connected to the dielectric cavity is constructed on the outer circumferential wall of the conductive half sleeve; when the two conductive half sleeves are buckled together, the two rubber half sleeves are buckled together to form a complete rubber sleeve.

5. The multi-parameter comprehensive logging device according to claim 1, characterized in that: The anti-falling power-assisting mechanism includes two rolling wheel groups symmetrically arranged on both sides of the pulling rope, the two rolling wheel groups are respectively connected to two vertical mounting plates, each rolling wheel group includes a plurality of power-assisting rollers arranged along the vertical interval, each power-assisting roller is connected to the corresponding vertical mounting plate through an adapter seat, and a transmission outer gear ring is coaxially installed on each power-assisting roller, and the two transmission outer gear rings on the two corresponding power-assisting rollers in the two rolling wheel groups are meshed with each other, and each power-assisting roller on one rolling wheel group is coaxially equipped with a transmission sprocket, and these transmission sprockets are connected by transmission chain, and an power-assisting roller of the other rolling wheel group is coaxially connected to the output shaft of the driving motor, and the two vertical mounting plates are transmission-connected to the opening and closing vertical adjustment mechanism.

6. A multi-parameter comprehensive logging device according to claim 5, characterized in that: The power-assisting roller includes a wheel body coaxially assembled on a mounting wheel axle, an inner-concave elastic rolling ring is installed on the outer peripheral surface of the wheel body, the elastic rolling ring coincides with the axis of the wheel body, and an air-filling cavity is formed between the elastic rolling ring and the wheel body, an air guide channel is constructed in the mounting wheel axle, and an air guide hole connecting the guide channel and the air-filling cavity is opened on the mounting wheel axle, one end of the mounting wheel axle is rotatably connected to an intake branch pipe, the intake branch pipe is connected to an intake main pipe, and an intake control valve is installed on the intake main pipe.

7. The multi-parameter comprehensive logging device according to claim 5, characterized in that: The opening and closing vertical adjustment mechanism includes two assembled sliders which are respectively slidably assembled on two vertical mounting arms, and an adjustment slider which is slidably connected to the vertical mounting arm is arranged above each of the assembled sliders. The assembled slider is connected to the adjustment slider via a hard spring, and the adjustment slider is rotatably connected to the lower end of the vertical adjustment screw, and the vertical adjustment screw is threadedly connected to the upper end of the vertical mounting arm, and the two assembled sliders are transmission connected to the two vertical mounting plates.

8. A multi-parameter comprehensive logging device according to claim 7, characterized in that: A transverse guide rod and a transverse screw rod are connected to each of the assembled sliders along the vertical intervals, the transverse guide rod is slidably connected to the corresponding vertical mounting plate, and the transverse screw rod is threadedly connected to the corresponding vertical mounting plate; the threads of the two transverse screw rods on the two assembled sliders have opposite rotation directions, and the ends of the two transverse screw rods that are close to each other are coaxially connected, and the ends that are away from each other are rotationally connected to the corresponding assembled sliders; the ends of the two transverse guide rods that are close to each other are coaxially connected, and the ends that are away from each other are fixedly connected to the corresponding assembled sliders.

9. The multi-parameter comprehensive logging device according to claim 1, characterized in that: The outward-stretched node anti-deviation mechanism includes an upper mounting assembly and a lower mounting assembly arranged in an upper and lower manner. The outward extension arms of multiple curved support arms are evenly hinged to the outer peripheral wall of the upper mounting assembly along the circumference of the upper mounting assembly. The inner oblique arm of each curved support arm is hinged with a hinged rod. The end of the hinged rod away from the curved support arm is hinged to the outer peripheral wall of the lower mounting assembly. The upper end of the inner oblique arm and the lower end of the outward extension arm are connected to each other. An abutment joint is constructed at the lower end of the inner oblique arm. Two vertical electric cylinders are symmetrically arranged between the upper mounting assembly and the lower mounting assembly, and the pulling rope passes through the upper mounting assembly and the lower mounting assembly in sequence.

10. A multi-parameter comprehensive logging device according to claim 9, characterized in that: The upper assembly includes two upper half sleeves spliced ​​together, the upper ends of the two upper half sleeves are connected by two first fixed half rings, and the lower ends of the two upper half sleeves are connected by another two first fixed half rings; the lower assembly includes two lower half sleeves spliced ​​together, the upper ends of the two lower half sleeves are connected by two second fixed half rings, and the lower ends of the two lower half sleeves are connected by another two second fixed half rings, and the hinged rod is an elastic telescopic rod.

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