Hanger and putting tool for dynamic monitoring of oil field

Abstract

The utility model relates to a hanger and a putting tool for dynamic monitoring of an oil field, and relates to the field of oil field monitoring technology.The hanger and the putting tool for dynamic monitoring of the oil field comprise a hanging module and a putting module, the hanging module comprises a hanger body, a supporting arm and a driving part, and the hanger body is columnar; one end of the hanger body is provided with a threaded inner hole used for fixing a pressure gauge, and the other end of the hanger body is provided with a conical fishing neck. A driving sliding block is connected into the hanger body in a sliding mode in the axial direction, and the multiple supporting arms are distributed in the circumferential direction of the hanger body at intervals. The driving piece is used for driving the end parts of the plurality of supporting arms to rotate and extend out of the accommodating groove; the putting module is used for being matched with the driving piece to drive the multiple supporting arms to rotate and extend out of the containing groove. By optimizing the structural design of the hanger and the releasing tool, the working reliability of the hanger in the using process is improved, and efficient and rapid hanging and releasing of the pressure gauge are guaranteed.

Description

Technical Field

[0001] The present application relates to the field of oilfield monitoring technologies, and in particular, to a hanger and a delivery tool for oilfield dynamic monitoring. Background Art

[0002] In the complex environment of oilfield dynamic monitoring, especially for the high-precision testing requirements of unstable well testing and system well testing, it is crucial to ensure continuous and accurate acquisition of downhole temperature and pressure data. To effectively avoid the well control risks that may be caused by traditional cable transmission methods, tools are needed to hang a storage-type high-precision electronic temperature and pressure gauge in the tubing to continuously monitor and acquire data.

[0003] In the prior art, a hanger is generally used to realize the delivery and hanging of a pressure gauge when hanging a pressure gauge. However, in the prior art, the clearance between the support arm of the hanger and the hanger body is too tight, and the hanger is prone to cause the suspension arm to fail to pop out due to reasons such as sand jamming in the well, resulting in the failure of the pressure gauge suspension. Summary of the Invention

[0004] In order to improve the working reliability of the hanger during use, the present application provides a hanger and a delivery tool for oilfield dynamic monitoring.

[0005] The hanger and the delivery tool for oilfield dynamic monitoring provided by the present application adopt the following technical solutions:

[0006] The hanger and the delivery tool for oilfield dynamic monitoring include:

[0007] A suspension module, the suspension module includes a hanger body, a support arm, and a driving member. The hanger body is columnar. One end of the hanger body is provided with a threaded inner hole for fixing a pressure gauge, and the other end is provided with a conical fishing neck;

[0008] There are multiple support arms. A driving slider is slidably connected along the axial direction inside the hanger body. The multiple support arms are circumferentially spaced apart along the hanger body. The hanger body is provided with a plurality of receiving grooves for receiving the support arms. One end of the support arm is connected to the driving slider, and the other end extends outside the hanger body. A torsion spring is provided at the hinge joint between the support arm and the driving slider. The torsion spring has a tendency to drive the multiple support arms to rotate and contract into the receiving grooves;

[0009] The driving member is used to drive the ends of the multiple support arms to rotate and extend outside the receiving grooves;

[0010] A delivery module, the delivery module is used to cooperate with the driving member to drive the multiple support arms to rotate and extend outside the receiving grooves.

[0011] Optionally, the driving member includes a push rod and a tension spring;

[0012] The hanger body is provided with a first central sliding hole along the axial direction, the push rod is coaxially slidably connected in the first central sliding hole, and one end of the push rod is fixedly connected to the driving slider;

[0013] The tension spring is sleeved on the push rod, one end of the tension spring is fixed to the driving slider, and the other end is fixed to the inside of the hanger body;

[0014] When the tension spring is in a free state, the push rod drives the slider to rotate the ends of the plurality of support arms and extend them outside the receiving groove.

[0015] Optionally, the left side wall of the accommodating groove is configured as an inclined surface, and the end of the supporting arm is rotatably connected to a roller.

[0016] Optionally, the delivery module includes a delivery tube, a delivery claw, a push rod and a control member;

[0017] The delivery claws are provided in plurality, the delivery claws are hinged to the delivery tube, the end of the delivery claw is provided as a straight hook matched with the fishing neck of the hanger body, and a slip spring is provided in the delivery tube, and the slip spring is used to drive the delivery claw to open;

[0018] A second central sliding hole is coaxially opened inside the delivery tube along the axis, the second central sliding hole has the same diameter as the first sliding hole, and the push rod is coaxially slidably connected in the sliding hole.

[0019] The control member is used for controlling the push rod to slide in the second central sliding hole.

[0020] Optionally, the control component includes a programmable motor, a transmission sleeve and a reset spring, one end of the push rod is fixedly connected to a disc for driving the delivery claw to clamp, the reset spring is sleeved on the push rod, the transmission sleeve and the end of the push rod are coaxially fixedly connected, one end of the reset spring is tightly pressed against the disc, and the other end is tightly pressed against the transmission sleeve, a drive rod is fixedly connected to the output shaft of the programmable motor, and a groove matching the drive rod is provided at the end of the transmission sleeve;

[0021] When the driving rod is in the groove, the return spring drives the top rod to slide to the left, and the delivery claw opens;

[0022] When the driving rod is not located in the groove, the return spring is in a compressed state, and at this time, the delivery claw is squeezed by the disc and is in a clamped state.

[0023] Optionally, one end of the delivery claw facing away from the delivery tube is coaxially fixedly connected with an alignment sleeve, and a conical bell mouth is provided inside the alignment sleeve.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By optimizing the structural design of the hanger, especially the rotational telescopic mechanism of the support arm, one end of the support arm is slidably connected to the inside of the hanger body through a driving slider, and the other end abuts against the inclined surface of the receiving groove through a roller. The above structure enhances the flexibility and reliability of the telescopic movement of the support arm, greatly reducing the problem that the support arm cannot pop out due to sand particle jamming, thereby improving the working reliability of the hanger during use and ensuring the efficient and rapid suspension and delivery of the pressure gauge.

[0026] 2. The delivery module in this application cooperates with automated control means such as a programmable motor to achieve precise delivery of the pressure gauge. During delivery, the delivery claw can accurately lock the hanger and stably release it, thereby improving the operation accuracy and detection accuracy of the pressure gauge suspension work. Description of the Drawings

[0027] Figure 1 is a longitudinal sectional view of the delivery module and the suspension module in the grasping state of the embodiment of the present application;

[0028] Figure 2 is an overall structural schematic diagram of the delivery module and the suspension module in the grasping state of the embodiment of the present application.

[0029] Description of the Reference Numerals: 1. Hanger body; 11. Internal threaded hole; 12. Fishing neck; 13. Driving slider; 14. First central sliding hole; 2. Support arm; 21. Torsion spring; 22. Roller; 3. Driving member; 31. Push rod; 32. Pulling spring; 4. Delivery cylinder; 41. Slip spring; 42. Delivery claw; 421. Alignment sleeve; 43. Thumb rod; 431. Disc; 44. Second central sliding hole; 5. Control member; 51. Programmable motor; 511. Driving rod; 52. Transmission sleeve; 53. Return spring. Detailed Description of the Embodiment

[0030] The following will further describe the present application in detail Figure 1-2 in conjunction with the attached

[0031] The embodiment of the present application discloses a hanger and a delivery tool for oilfield dynamic monitoring. Referring to Figure 1 and Figure 2 , the hanger and the delivery tool for oilfield dynamic monitoring include a suspension module and a delivery module.

[0032] The suspension module is used to suspend a high-precision electronic temperature and pressure gauge in the oil pipe. The suspension module includes a hanger body 1, a support arm 2, and a driving member 3.

[0033] The hanger body 1 is designed as a column, with an internal threaded hole 11 at one end for fixing the pressure gauge; the other end is a conical fishing neck 12 for easy grasping during recovery. A driving slider 13 is slidably connected along the axial direction inside the hanger body 1, and a plurality of receiving grooves are provided for receiving the support arm 2.

[0034] There are two support arms 2, which are circumferentially and spaced apart along the suspension body 1. One end of the support arm 2 is hinged to the driving slider 13, and the other end extends outside the suspension body 1. A torsion spring 21 is provided at the hinge, so that the support arm 2 naturally contracts into the receiving groove when not subjected to external force. The left side wall of the receiving groove is set as an inclined surface, and a roller 22 is rotatably connected to the end of the support arm 2.

[0035] The driving member 3 includes a push rod 31 and a tension spring 32. The push rod 31 is coaxially and slidably connected in the first central sliding hole 14 of the suspension body 1, and one end is fixedly connected to the driving slider 13. The tension spring 32 is sleeved on the push rod 31, one end is fixed to the driving slider 13, and the other end is fixed inside the suspension body 1. When the tension spring 32 is in a free state, the push rod 31 causes the support arm 2 to extend outside the receiving groove through the driving slider 13 to form a stable support structure.

[0036] The dropping module is used to drop the suspension module together with the pressure gauge to a specified position in the oil pipe. The dropping module includes a dropping cylinder 4, dropping claws 42, a push rod 43 and a control member 5.

[0037] A slip spring 41 is provided inside the dropping cylinder 4 to drive the dropping claws 42 to open. There are two dropping claws 42, which are hinged to the dropping cylinder 4, and the end thereof is designed as a straight hook for cooperating with the fishing neck 12 of the suspension body 1. The push rod 43 is coaxially and slidably connected in the second central sliding hole 44 in the dropping cylinder 4, and one end is fixedly connected with a disc 431 for squeezing the dropping claws 42 to clamp them. A centering sleeve 421 is coaxially and fixedly connected to the end of the dropping claw 42 away from the dropping cylinder 4, and a tapered flared opening is formed inside the centering sleeve 421. The centering sleeve 421 is used to guide the fishing neck 12 of the suspension body 1 into the centering sleeve 421, so as to fix the fishing neck 12 through the dropping claws 42.

[0038] The control member 5 includes a programmable motor 51, a transmission sleeve 52 and a return spring 53. The programmable motor 51 cooperates with the transmission sleeve 52 through a driving rod 511 to control the sliding of the push rod 43. The return spring 53 is sleeved on the push rod 43, one end abuts against the disc 431, and the other end abuts against the transmission sleeve 52. The transmission sleeve 52 is coaxially and fixedly connected to the push rod 43, and a groove for cooperating with the driving rod 511 of the programmable motor 51 is provided at the end thereof.

[0039] When the driving rod 511 is located in the groove, the return spring 53 drives the push rod 43 to slide to the left, and the dropping claws 42 open; when the driving rod 511 is not located in the groove, the return spring 53 is in a compressed state, and the dropping claws 42 are in a clamped state under the extrusion of the disc 431.

[0040] The implementation principle of the suspension device and the dropping tool for oilfield dynamic monitoring in the embodiment of the present application is as follows: The working process of the dropping module and the suspension module when suspending the pressure gauge is as follows:

[0041] Suspension module preparation: Fix the pressure gauge through the internal thread. The hanger body 1 maintains its columnar shape, and the support arm 2 contracts into the accommodation groove under the action of the torsion spring 21, making the whole hanger compact and facilitating the delivery.

[0042] Operation of the delivery module: The delivery claw 42 remains open under the action of the slip spring 41, and its straight hook part is aligned with the fishing neck 12 of the hanger body 1. The delivery cylinder 4 drives the ejector rod 43 to slide through the control member 5, so that the disc 431 pushes the delivery claw 42 to clamp the fishing neck 12 of the hanger body 1. At this time, the delivery claw 42 is firmly connected to the hanger body 1, and the whole hanger and pressure gauge assembly are ready to be delivered into the well.

[0043] Delivery and suspension: The delivery module (including the hanger and the pressure gauge) is integrally delivered to the predetermined position in the well. After reaching the position, the programmed control motor 51 drives the drive rod 511 to rotate in the groove, and the return spring 53 drives the ejector rod 43 to slide to the left. At this time, the delivery claw 42 opens, thus releasing the hanger; at the same time, since the ejector rod 43 no longer contacts the push rod 31 in the hanger body 1, the tension spring 32 elongates to release energy, drives the drive slider 13 through the push rod 31, and then makes the support arm 2 extend out of the accommodation groove and support on the well wall to realize the stable suspension of the hanger. The pressure gauge is fixed on the hanger body 1 through the internal threaded hole 11, and starts to continuously monitor the temperature and pressure data in the well.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hanger and a delivery tool for dynamic monitoring of oil fields, characterized in that: include: A suspension module, the suspension module comprising a hanger body (1), a support arm (2) and a drive member (3), the hanger body (1) being columnar, one end of the hanger body (1) being provided with a threaded inner hole (11) for fixing a pressure gauge, and the other end being provided with a conical fishing neck (12); The support arms (2) are provided with a plurality of them, and a driving slider (13) is axially slidably connected inside the hanger body (1), and the plurality of support arms (2) are distributed at intervals along the circumference of the hanger body (1). The hanger body (1) is provided with a plurality of receiving grooves for receiving the support arms (2), one end of the support arm (2) is connected to the driving slider (13), and the other end extends outside the hanger body (1), and a torsion spring (21) is provided at the hinge between the support arm (2) and the driving slider (13), and the torsion spring (21) has a tendency to drive the plurality of support arms (2) to rotate and contract into the receiving groove; The driving member (3) is used to drive the ends of the plurality of support arms (2) to rotate and extend outside the receiving groove; A delivery module is used to cooperate with a driving member (3) to drive the plurality of support arms (2) to rotate and extend outside the receiving groove.

2. The hanger and delivery tool for oilfield dynamic monitoring according to claim 1, characterized in that: The driving member (3) comprises a push rod (31) and a tension spring (32); The hanger body (1) is provided with a first central sliding hole (14) penetrating along the axial direction, the push rod (31) is coaxially slidably connected in the first central sliding hole (14), and one end of the push rod (31) is fixedly connected to the driving slider (13); The tension spring (32) is sleeved on the push rod (31), one end of the tension spring (32) is fixed to the driving slider (13), and the other end is fixed to the inside of the hanger body (1); When the tension spring (32) is in a free state, the push rod (31) drives the slider (13) to rotate the ends of the plurality of support arms (2) to extend outside the receiving groove.

3. The hanger and delivery tool for oilfield dynamic monitoring according to claim 2, characterized in that: The left side wall of the accommodating groove is arranged as an inclined surface, and the end of the supporting arm (2) is rotatably connected to a roller (22).

4. The hanger and delivery tool for dynamic monitoring of oil fields according to any one of claims 1 to 3, characterized in that: The delivery module comprises a delivery tube (4), a delivery claw (42), a push rod (43) and a control member (5); The delivery claw (42) is provided with a plurality of them, the delivery claw (42) is hinged to the delivery tube (4), the end of the delivery claw (42) is arranged as a straight hook that cooperates with the fishing neck (12) of the hanger body (1), and a slip spring (41) is arranged in the delivery tube (4), and the slip spring (41) is used to drive the delivery claw (42) to open; A second central sliding hole (44) is coaxially opened inside the delivery tube (4) along the axis. The second central sliding hole (44) has the same diameter as the first sliding hole. The push rod (43) is coaxially slidably connected in the sliding hole. The control member (5) is used to control the push rod (43) to slide in the second central sliding hole (44).

5. The hanger and delivery tool for oilfield dynamic monitoring according to claim 4, characterized in that: The control member (5) comprises a programmable motor (51), a transmission sleeve (52) and a reset spring (53); one end of the push rod (43) is fixedly connected to a disc (431) for driving the delivery claw (42) to clamp; the reset spring (53) is sleeved on the push rod (43); the transmission sleeve (52) and the end of the push rod (43) are coaxially fixedly connected; one end of the reset spring (53) is tightly pressed against the disc (431) and the other end is tightly pressed against the transmission sleeve (52); a driving rod (511) is fixedly connected to the output shaft of the programmable motor (51); and a groove matching the driving rod (511) is provided at the end of the transmission sleeve (52); When the driving rod (511) is located in the groove, the return spring (53) drives the top rod (43) to slide leftward, and the delivery claw (42) opens; When the driving rod (511) is not located in the groove, the return spring (53) is in a compressed state, and at this time, the delivery claw (42) is squeezed by the disc (431) and is in a clamped state.

6. The hanger and delivery tool for oilfield dynamic monitoring according to claim 5, characterized in that: One end of the delivery claw (42) that is away from the delivery tube (4) is coaxially fixedly connected to an alignment sleeve (421), and a conical bell mouth is provided inside the alignment sleeve (421).

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