CN114165215A

CN114165215A - Logging conveying device and logging conveying method

Info

Publication number: CN114165215A
Application number: CN202010848550.4A
Authority: CN
Inventors: 郑茜; 何润; 郭维华; 王磊; 马凤良; 李娟�; 雷明; 曾永军; 李忠春; 洪亮
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2022-03-11
Anticipated expiration: 2040-08-21
Also published as: CN114165215B

Abstract

The invention provides a well logging conveying device and a well logging conveying method, wherein the well logging conveying device comprises: a plurality of serially arranged conveyance pipes, at least one connection mechanism, and a sleeve for housing a logging tool; the two adjacent conveying pipes are connected through the connecting mechanism, and the sleeve is connected to the lower ends of the conveying pipes; the two adjacent conveying pipes comprise a first conveying pipe and a second conveying pipe, and the connecting mechanism is connected to the end part of the first conveying pipe; the first side part of the end part of the second conveying pipe is hinged to the connecting mechanism, and the second side part of the end part of the second conveying pipe is connected with the connecting mechanism through a connecting rope. By the method and the device, the technical problems of large conveying equipment, high operation difficulty and high cost existing in well logging in the prior art are solved.

Description

Logging conveying device and logging conveying method

Technical Field

The invention relates to the field of horizontal well logging, in particular to a logging conveying device and a logging conveying method.

Background

After completion of the horizontal well, the logging tool needs to be transported to the measurement location in the casing for logging. At present, horizontal conveying methods are widely adopted for conveying logging instruments, and mainly include electronic tractor conveying, tubing conveying, coiled tubing conveying and the like.

The principle of the coiled tubing conveying method of the flexible pipe is as follows: the logging cable penetrates through the coiled tubing and is connected with the logging instrument, the coiled tubing horizontal logging truck is used for providing power, the coiled tubing 90 and the logging instrument 60 are conveyed to a target well section by using the injection head, and logging is completed by lifting or lowering the coiled tubing. Equipment for carrying out the coiled tubing method is shown in fig. 11 and generally comprises a logging truck 70 and an injector head 80, the logging truck 70 requiring the provision of a coiled tubing drum 71 for spooling coiled tubing 90, the wellhead requiring the provision of a riser 81 and blowout preventer 82; a cable 91 connected to the logging tool 60 is run through the coiled tubing 90.

The coiled tubing conveying method needs to use a coiled tubing horizontal logging truck and an injection head to drive the coiled tubing to be lifted and lowered, and has the technical problems of large equipment, high operation difficulty and high cost.

Disclosure of Invention

The invention aims to provide a logging conveying device and a logging conveying method, which are used for solving the technical problems of large conveying equipment, high operation difficulty and high cost in logging in the prior art.

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

the invention provides a well logging conveying device, which comprises: a plurality of serially arranged conveyance pipes, at least one connection mechanism, and a sleeve for housing a logging tool; the two adjacent conveying pipes are connected through the connecting mechanism, and the sleeve is connected to the lower ends of the conveying pipes; the two adjacent conveying pipes comprise a first conveying pipe and a second conveying pipe, and the connecting mechanism is connected to the end part of the first conveying pipe; the first side part of the end part of the second conveying pipe is hinged to the connecting mechanism, and the second side part of the end part of the second conveying pipe is connected with the connecting mechanism through a connecting rope.

In a preferred embodiment, the second conveying pipe is provided with a rope groove, one end of the connecting rope is fixedly connected to the connecting mechanism, and the other end of the connecting rope is telescopically arranged in the rope groove.

In a preferred embodiment, the connecting mechanism comprises a first seat body and a second seat body, a movable hanging buckle body is arranged at the end part of the first seat body, and the hanging buckle body is connected with a hanging buckle spring; the end part of the second seat body is provided with a hook body matched with the hanging buckle body, and the hanging buckle spring can drive the hanging buckle body to be clamped with the hook body.

In a preferred embodiment, a connecting groove is formed in an end portion of the first seat body, the hook body is arranged in the connecting groove, and the hook body can be attached to a side wall of the connecting groove.

In a preferred embodiment, a plurality of circumferentially distributed hanging buckle bodies are arranged at an end of the first seat body.

In a preferred embodiment, the first end of the delivery pipe is connected to the first seat, and the second end of the delivery pipe is connected to the second seat.

In a preferred embodiment, the sleeve and the delivery tube are connected by the connecting mechanism.

In a preferred embodiment, the duct is an arcuate elbow.

In a preferred embodiment, the side wall of the sleeve is provided with a wellhead measuring opening, the sleeve is connected with a tile for sealing the wellhead measuring opening, the tile is connected with a tile driving mechanism, and the tile driving mechanism can drive the tile to move relative to the wellhead measuring opening.

In a preferred embodiment, the tiles are movable in the axial direction of the sleeve; the tile driving mechanism comprises a motor and a gear connected with the motor, and the tile is provided with a tooth groove meshed with the gear.

In a preferred embodiment, a breaking head is connected to an end of the sleeve.

The invention provides a logging conveying method, which adopts the logging conveying device and comprises the following steps:

step S10, installing a logging tool in the sleeve;

and step S20, arranging the well logging conveying device at the wellhead, knocking the top of the well logging conveying device to drive the well logging conveying device to move downwards.

The invention has the characteristics and advantages that:

the logging conveying device is arranged in a well, the first conveying pipe and the second conveying pipe are connected together through the connecting mechanism, the second conveying pipe and the connecting mechanism can rotate around the hinge shaft, and the connecting rope limits the rotating range between the second conveying pipe and the connecting mechanism; under coupling mechanism's effect, relative rotation can take place between first conveyer pipe and the second conveyer pipe for this logging conveyor can be crooked along with the shape of well when downstream in the well, the adjustment shape, like this, has reduced the hindrance of this logging conveyor motion in the well, and this logging conveyor downstream of being convenient for. When the logging conveying device is used for conveying logging instruments, the logging conveying device can be driven to move downwards in a well by knocking the top of the logging conveying device at a well head. Therefore, the conveying equipment can be simplified, the operation difficulty is reduced, and the technical problems of large conveying equipment, high operation difficulty and high cost existing in the logging in the prior art are solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a logging conveyance device according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partial enlarged view of fig. 1 at B;

FIG. 4 is a schematic view of a conveyance pipe and a connection mechanism in the logging conveyance device of FIG. 1;

fig. 5 is a partial enlarged view at C in fig. 4;

fig. 6 is a partial enlarged view of fig. 4 at D;

FIG. 7 is a cross-sectional view of a sleeve in the logging conveyance device of FIG. 1;

FIG. 8 is an isometric view of the sleeve shown in FIG. 7;

FIG. 9 is a half-sectional view of the sleeve shown in FIG. 7;

FIG. 10 is a schematic illustration of a logging delivery method provided by the present invention;

FIG. 11 is a schematic illustration of an apparatus for performing the coiled tubing method of flex tubing.

The reference numbers illustrate:

10. a delivery pipe; 100. an arc-shaped bent pipe; 11. a first delivery pipe; 12. a second delivery pipe; 121. a first side portion; 122. a second side portion;

20. a connecting mechanism; 21. connecting ropes; 211. a wire rope; 212. a rope groove; 22. a hinged column; 221. a hinge hole;

31. a first seat body; 41. a buckle hanging body; 411. a chute; 43. a hanging buckle spring; 44. connecting grooves;

32. a second seat body; 42. a hook body;

50. a sleeve; 500. the axial direction of the sleeve; 51. measuring a wellhead; 52. a tile; 521. a tooth socket;

53. a tile drive mechanism; 531. a motor; 532. a gear; 533. a connecting rod;

54. a ground breaking head; 541. spherical surface; 55. a cable socket; 56. a wire harness;

60. a logging instrument;

70. logging a well truck; 71. a coiled tubing drum;

80. an injection head; 81. a riser; 82. a blowout preventer;

90. a coiled tubing; 91. an electrical cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides a well logging conveying device, as shown in figures 1-3, comprising: a plurality of serially arranged conveyance pipes 10, at least one connection mechanism 20, and a sleeve 50 for housing a logging tool 60; two adjacent delivery pipes 10 are connected through a connecting mechanism 20, and a sleeve 50 is connected to the lower ends of the delivery pipes 10; two adjacent delivery pipes 10 comprise a first delivery pipe 11 and a second delivery pipe 12, and a connecting mechanism 20 is connected to the end part of the first delivery pipe 11; the first side part 121 of the end part of the second conveying pipe 12 is hinged with the connecting mechanism 20, and the second side part 122 of the end part of the second conveying pipe 12 is connected with the connecting mechanism 20 through the connecting rope 21.

The well logging conveying device is arranged in a well, the connecting mechanism 20 connects the first conveying pipe 11 and the second conveying pipe 12 together, the second conveying pipe 12 and the connecting mechanism 20 can rotate around a hinge shaft, and the connecting rope 21 limits the rotating range between the second conveying pipe 12 and the connecting mechanism 20; under the effect of the connecting mechanism 20, the first conveying pipe 11 and the second conveying pipe 12 can rotate relatively, so that when the logging conveying device moves downwards in a well, the logging conveying device can be bent along with the shape of the well, and the shape can be adjusted, therefore, the obstruction of the logging conveying device in the well is reduced, and the logging conveying device can move downwards conveniently. When the logging conveyor is used to convey the logging instrument 60, the logging conveyor can be driven to move downwards in the well by knocking the top of the logging conveyor at the wellhead. Therefore, the conveying equipment can be simplified, the operation difficulty is reduced, and the technical problems of large conveying equipment, high operation difficulty and high cost existing in the logging in the prior art are solved.

The end surface of first delivery pipe 11 and the end surface of second delivery pipe 12 may be circular, and the hinge axis between the end of second delivery pipe 12 and connection mechanism 20 may be disposed in a tangential direction of the end surface of second delivery pipe 12. Specifically, as shown in fig. 2, 3 and 5, the second side portion 122 of the end portion of the second conveying pipe 12 is provided with a hinge column 22, a hinge hole 221 is formed on the hinge column 22, a hinge shaft penetrating through the hinge hole 221 is formed on the connecting mechanism 20, and the second conveying pipe 12 can rotate around the hinge shaft relative to the connecting mechanism 20; as shown in fig. 2, the hinge hole 221 and the hinge shaft may be provided in a tangential direction of the end surface of the second transport pipe 12. In case the logging transportation device comprises a plurality of connection means 20, it is preferred that the hinge holes 221 in each connection means 20 are arranged in parallel.

First side 121 and second side 122 are distributed on both sides of the end of second conveying pipe 12, and connection cord 21 is connected to second side 122, and when connection mechanism 20 rotates around the hinge axis with respect to second conveying pipe 12, connection cord 21 limits the rotation range of connection mechanism 20. When the conveying pipe is lowered, the first conveying pipe 11 can rotate around a hinge shaft relative to the second conveying pipe 12 when meeting the bending section of the well, so that the conveying pipe can turn; when moving from the bent section to the straight section, the second side portion 122 gradually approaches the connection mechanism 20, and the connection rope 21 can gradually return to the straight shape along with the retraction of the first and second transmission pipes 11 and 12. When the lifting device is lifted up, when encountering a bending section of a well, the first conveying pipe 11 can rotate around a hinge shaft relative to the second conveying pipe 12 to realize turning, and the connecting rope 21 can transmit pulling force; when moving from the bent section to the straight section, the second side portion 122 gradually approaches the connection mechanism 20, and the connection rope 21 can gradually return to the straight shape along with the retraction of the first and second transmission pipes 11 and 12.

The connecting cord 21 is flexible and can be deformed in response to the relative movement between the connecting mechanism 20 and the second feed tube 12. Further, the second conveying pipe 12 is provided with a rope groove 212, one end of the connecting rope 21 is fixedly connected to the connecting mechanism 20, and the other end of the connecting rope 21 is telescopically arranged in the rope groove 212. As shown in fig. 3, when the second side portion 122 is away from the connection mechanism 20, the connection cord 21 is pulled out of the cord groove 212; as shown in FIG. 2, when second side portion 122 is adjacent to attachment mechanism 20, attachment cord 21 is retracted into cord slot 212 to avoid interfering with the movement between attachment mechanism 20 and second delivery tube 12. The end of the connecting rope 21 is defined in the rope groove 212 so that it cannot be separated from the rope groove 212; specifically, the end of the connecting string 21 may be provided to be thick, and the opening of the string groove 212 may be small, thereby preventing the end of the connecting string 21 from being separated from the string groove 212. Preferably, the connecting rope 21 is a steel wire rope 211, so that on one hand, the connecting rope can be flexibly deformed; on the other hand, the connecting rope 21 can be relatively smoothly retracted into the rope groove 212, which is advantageous for the connecting rope 21 to be retracted into the rope groove 212.

When descending the well, the first conveying pipe 11 may be positioned above the second conveying pipe 12, or the second conveying pipe 12 may be positioned above the first conveying pipe 11. The articulated connection between the second delivery tube 12 and the connection means 20 has been described above and is provided with a connecting cord 21. The first conveying pipe 11 and the connecting mechanism 20 can be fixedly connected; the connection can also be in a hinged manner, and a connection rope 21 is provided, that is, the connection mechanism 20 between the first delivery pipe 11 and the connection mechanism 20 can be similar to the connection mechanism 20 between the second delivery pipe 12 and the connection mechanism 20, and the description is omitted here.

In an embodiment of the present invention, as shown in fig. 2 and 3, the connection mechanism 20 includes a first seat 31 and a second seat 32, a movable hook 41 is disposed at an end of the first seat 31, and the hook 41 is connected to a hook spring 43; the end of the second seat 32 is provided with a hook 42 matching with the hook 41, and the hook spring 43 can drive the hook 41 to engage with the hook 42, so as to connect the first seat 31 and the second seat 32 together. The first seat 31 and the second seat 32 can be disassembled and assembled, the first seat 31 can be connected to the first delivery pipe 11, and the second seat 32 can be connected to the second delivery pipe 12; the first seat 31 can be connected to the second delivery pipe 12, and the second seat 32 can be connected to the first delivery pipe 11, both of which can achieve the disassembly and assembly between the adjacent delivery pipes 10. During on-site construction, the conveying pipes 10 can be connected in series one by one, the number of the conveying pipes 10 is selected as required, and in the construction process, the conveying pipes 10 are additionally arranged one by one while the logging conveying device is driven to move underground through knocking, so that the number of the conveying pipes 10 is increased, and the on-site operation is facilitated.

Specifically, the first seat 31 and the second seat 32 are both annular; the end of the first seat 31 is provided with a sliding slot 411, the sliding slot 411 is arranged along the radial direction of the first seat 31, the hanging buckle body 41 is installed in the sliding slot 411, and the hanging buckle spring 43 is abutted against the hanging buckle body 41 and can drive the hanging buckle body 41 to move outwards along the radial direction of the first seat 31. The first seat 31 is provided with a plurality of hanging buckle bodies 41, and the hanging buckle bodies 41 are distributed along the circumferential direction; the second seat 32 has a plurality of hook bodies 42 corresponding to the hook bodies 41 one by one, and the plurality of hook bodies 41 are engaged with the hook bodies 42 to connect the first seat 31 and the second seat 32 together. The hook body 41 is pushed to compress the hook spring 43, the hook body 41 is separated from the hook body 42, and the first seat 31 and the second seat 32 can be separated.

Further, the end of the first seat 31 is provided with a connecting groove 44, the hook body 41 is arranged in the connecting groove 44, and the hook body 42 can be attached to the side wall of the connecting groove 44. As shown in fig. 2, the hook spring 43 pushes the hook body 41 to move, so that the hook body 41 is engaged with the hook body 42, and the hook body 42 is attached to the side wall of the connecting groove 44, so that the first seat 31 and the second seat 32 can be connected more firmly.

In an embodiment of the present invention, as shown in fig. 4 to 6, a first seat 31 is connected to a first end of the conveying pipe 10, and a second seat 32 is connected to a second end of the conveying pipe 10, so that the conveying pipes 10 can be installed one by one at a construction site, and the conveying pipes 10 can be connected in series as required. The second seat 32 and the delivery pipe 10 may be integrally formed.

In one embodiment of the invention, the sleeve 50 is connected to the delivery tube 10 by a connection mechanism 20 to facilitate assembly in the field. The structure of the connection between the sleeve 50 and the delivery pipe 10 through the connection mechanism 20 is similar to the structure of the connection between two adjacent delivery pipes 10 through the connection mechanism 20, and will not be described in detail herein.

As shown in fig. 1 and 4, the conveying pipe 10 is an arc-shaped bent pipe 100, which facilitates the well logging conveying device to turn at the turning section of the well on one hand, and can reduce the contact of the conveying pipe 10 with the well wall on the other hand, thereby reducing friction and resistance, and facilitating the well logging conveying device to be driven to move downwards in the well when the top of the well logging conveying device is knocked by the wellhead.

In one embodiment of the present invention, as shown in fig. 7 to 9, a side wall of the sleeve 50 is provided with a wellhead 51, the sleeve 50 is connected with a tile 52 for closing the wellhead 51, the tile 52 is connected with a tile driving mechanism 53, and the tile driving mechanism 53 can drive the tile 52 to move relative to the wellhead 51. During the process of descending, the tile 52 seals the well logging head 51, so that the well logging instrument 60 can be prevented from being damaged; upon reaching the designated interval, the tile drive mechanism 53 drives the tile 52 to move, opening the well logging head 51 and exposing the logging tool 60 to the well for measurement. Tiles 52 may be provided on the interior of the sleeve 50; the tiles 52 may be curved to facilitate engagement with the inner wall of the sleeve 50 to close the well logging port 51. As shown in fig. 9, the sidewall of the sleeve 50 is provided with two well measuring heads 51, and the two well measuring heads 51 are arranged oppositely; the sleeve 50 is connected to two tiles 52 which correspond one-to-one to the wellhead 51.

The manner of movement of the tiles 52 relative to the sleeve 50 is not limited to one, for example: the tiles 52 are movable relative to the sleeve 50 in the axial direction 500 of the sleeve, and the tiles 52 are also rotatable along the inner wall of the sleeve 50. As shown in fig. 7 and 9, the tiles 52 move relative to the sleeve 50 in a manner that moves in an axial direction 500 of the sleeve. Further, the tile driving mechanism 53 includes a motor 531 and a gear 532 connected to the motor 531, and the tile 52 is provided with a tooth slot 521 meshed with the gear 532. The motor 531 rotates the gear 532, and the tile 52 is driven to move along the axial direction 500 of the sleeve by the tooth slot 521. The tile driving mechanism 53 may be connected to only one of the two tiles 52, and the two tiles 52 are connected by a connecting rod 533 to achieve synchronous movement.

As shown in fig. 7, a cable socket 55 is connected to an end of the sleeve 50, and the first housing 31 is connected to the sleeve 50 through the cable socket 55. The cable receptacle 55 is provided with a wiring harness 56, and a logging tool 60 arranged in the sleeve 50 can be connected with the wiring harness 56 for power connection. A cable may be provided in the pipe 10, with the lower end of the cable connected to the cable socket 55 and the upper end of the cable extending to the surface to power the logging tool 60.

In one embodiment of the present invention, the end of the sleeve 50 is connected with the ground breaking head 54, the front end of the ground breaking head 54 is tapered, and the end is provided with the spherical surface 541, so that the resistance and the abrasion can be reduced.

Example two

The invention provides a logging conveying method, which adopts the logging conveying device, and as shown in fig. 10, the method comprises the following steps: step S10, installing the logging tool 60 in the sleeve 50; and step S20, arranging the well logging conveying device on a wellhead, and knocking the top of the well logging conveying device to drive the well logging conveying device to move downwards.

In step S10, the tool 60 may be connected to the harness 56 and the lower end of the cable connected to the cable receptacle 55. In step S20, the top of the logging conveyor is knocked to drive the logging conveyor to move downward, the conveying pipes 10 are additionally mounted on the top of the logging conveyor one by one and connected in series as required, and the conveying pipes 10 drive the logging instrument 60 and the cable to move downhole. After the sleeve 50 and the logging tool 60 are conveyed to a specified well section, the power supply can be switched on to perform logging.

By adopting the logging conveying method, the logging conveying device can be driven to move underground in a knocking mode, compared with a coiled tubing horizontal logging truck and an injection port adopted in the prior art, the structure of equipment for knocking is relatively simple, the equipment is simplified, the operation difficulty is reduced, and the technical problems of large conveying equipment, large operation difficulty and high cost existing in logging in the prior art are solved.

After the measurement is finished, the construction vehicle can be connected by using the rope, and the logging conveying device is pulled out of the well. By adopting the well logging conveying method, the use of large-scale equipment such as a well logging truck and the like can be reduced, the transportation and the operation are convenient, and the cost is reduced.

The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. A logging conveyance apparatus, comprising: a plurality of serially arranged conveyance pipes, at least one connection mechanism, and a sleeve for housing a logging tool; the two adjacent conveying pipes are connected through the connecting mechanism, and the sleeve is connected to the lower ends of the conveying pipes;

the two adjacent conveying pipes comprise a first conveying pipe and a second conveying pipe, and the connecting mechanism is connected to the end part of the first conveying pipe; the first side part of the end part of the second conveying pipe is hinged to the connecting mechanism, and the second side part of the end part of the second conveying pipe is connected with the connecting mechanism through a connecting rope.

2. The well logging conveying device according to claim 1, wherein the second conveying pipe is provided with a rope groove, one end of the connecting rope is fixedly connected to the connecting mechanism, and the other end of the connecting rope is telescopically arranged in the rope groove.

3. The well logging conveying device according to claim 1, wherein the connecting mechanism comprises a first seat body and a second seat body, a movable hanging buckle body is arranged at the end part of the first seat body, and the hanging buckle body is connected with a hanging buckle spring; the end part of the second seat body is provided with a hook body matched with the hanging buckle body, and the hanging buckle spring can drive the hanging buckle body to be clamped with the hook body.

4. The well logging conveying device according to claim 3, wherein a connecting groove is formed in an end portion of the first base body, the hook body is arranged in the connecting groove, and the hook body can be attached to a side wall of the connecting groove.

5. The well logging conveyor device of claim 3, wherein the end of the first seat is provided with a plurality of circumferentially distributed hooking bodies.

6. The well logging conveyor apparatus of claim 3 wherein said first seat is connected to a first end of said conveyor pipe and said second seat is connected to a second end of said conveyor pipe.

7. The well logging delivery device of claim 1, wherein the sleeve and the delivery tube are connected by the connection mechanism.

8. The well logging conveyor of claim 1 wherein said conveying pipe is an arcuate bend.

9. The well logging conveyor device according to claim 1, wherein a well logging head is provided on a side wall of the sleeve, tiles for closing the well logging head are connected to the sleeve, and the tiles are connected to a tile driving mechanism capable of driving the tiles to move relative to the well logging head.

10. The well logging conveyor of claim 9 wherein said tiles are movable in the axial direction of said sleeve; the tile driving mechanism comprises a motor and a gear connected with the motor, and the tile is provided with a tooth groove meshed with the gear.

11. The logging conveyor of claim 1 wherein a breaking head is attached to an end of the sleeve.

12. A logging transport method using the logging transport apparatus according to any one of claims 1 to 11, comprising:

step S10, installing a logging tool in the sleeve;