Rope socket fixing chuck for optical fiber testing and working method of rope socket fixing chuck

Abstract

The invention belongs to the field of high-pressure oil and gas well optical fiber testing, and relates to a rope socket fixing chuck for optical fiber testing and a working method thereof. Comprising a chuck, the chuck comprises two chuck bodies, a rope socket is clamped between the two chuck bodies, the rope socket is clamped through the two chuck bodies, then the rope socket is fixed, a weighting rod and a test instrument are connected through the rope socket, and then the weighting rod and the test instrument are lifted through the device. The chuck is provided with the adjusting part used for adjusting the distance between the two chuck bodies, the distance between the two chuck bodies is adjusted through the adjusting part so that clamping and loosening of the rope socket can be achieved, and in addition, due to the fact that the distance between the chuck bodies is adjustable, the device can be suitable for rope sockets of different models. According to the device, stable and fixed connection of the weighting rod and the testing instrument can be achieved, the stability of the weighting rod and the testing instrument in the lifting process is improved, the device is convenient to mount and dismount and easy to operate, and rapid lifting and lowering of the weighting rod and the testing instrument are facilitated.

Description

Technical Field

[0001] The invention belongs to the field of high-pressure oil and gas well optical fiber testing, and relates to a rope cap fixing chuck used for optical fiber testing and a working method thereof. Background Art

[0002] When testing high-pressure oil and gas wells with optical fiber, the wellhead is high and difficult to climb. Figure 1 As shown, improper operation may cause the optical fiber to be broken or damaged. The operator needs to carry the test instrument and the weighted rod and climb up the ladder to the highest point to put the instrument and the weighted rod into the test blowout preventer, and then install the blowout preventer cap and lock it. The test instrument and the weighted rod weigh 30kg and are 1.5m long. It is inconvenient for people to carry and climb, which is very dangerous. The personnel need to lift the test instrument and the weighted rod above their heads to put them into the blowout preventer, which is difficult for the personnel to lift.

[0003] If the test instrument and the weight rod are placed into the blowout preventer by hoisting, when the instrument is outside the blowout preventer, the rope will be unstable due to shaking during the hoisting process, and the test instrument and the weight rod are only connected to the rope through the optical fiber rope cap, there is a safety hazard of rope breakage and rope slipping off the rope cap. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rope cap fixing chuck for optical fiber testing and a working method thereof. The present invention improves the stability of the weighted rod and the testing instrument during the lifting process and is convenient to operate.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses a rope cap fixing chuck for optical fiber testing, comprising two chuck bodies, a gap for clamping the rope cap between the two chuck bodies, and adjustment components for adjusting the size of the gap arranged on the two chuck bodies.

[0007] Furthermore, the adjustment component includes a plurality of locking rods, the locking rods are penetrated on the chuck body, and a limit adjustment structure is arranged on the locking rods, and the limit adjustment structure is located on both sides of the chuck body.

[0008] Furthermore, the locking rods are arranged symmetrically about the midpoint of the chuck body.

[0009] Furthermore, a resetting component for resetting the chuck bodies is arranged between the two chuck bodies.

[0010] Furthermore, the reset component includes a plurality of support rods, the support rods are passed through one chuck body and fixed on another chuck body, and a spring is sleeved on the support rods and located between the two chuck bodies.

[0011] Furthermore, each chuck body is provided with at least one chuck lifting ring.

[0012] Furthermore, the chuck lifting rings are arranged symmetrically about the geometric centers of the two chuck bodies.

[0013] Furthermore, a chuck handle is provided on the chuck body.

[0014] Furthermore, the chuck handle is fixedly arranged on one of the chuck bodies.

[0015] Furthermore, a reduced diameter is provided on the rope cap, and the two chuck bodies are clamped on the reduced diameter of the rope cap.

[0016] The present invention also discloses a working method of a rope cap fixing chuck for optical fiber testing, comprising the following steps:

[0017] When lifting the weighted rod and the testing instrument, the rope cap is placed in the gap between the two chuck bodies, and the size of the gap between the two chuck bodies is adjusted by the adjusting component so that the rope cap is clamped by the two chuck bodies;

[0018] After the test is completed and the instrument is taken out of the well, the gap between the two chuck bodies is adjusted by adjusting the adjustment component to increase the gap between the two chuck bodies, and the rope cap is taken out from the gap.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention discloses a rope cap fixing chuck for optical fiber testing, comprising two chuck bodies, a gap for clamping a rope cap between the two chuck bodies, the rope cap is clamped by the two chuck bodies to fix the rope cap, the weighting rod and the testing instrument are connected by the rope cap, and the weighting rod and the testing instrument are lifted by the device. Adjustment components for adjusting the size of the gap are provided on the two chuck bodies, and the spacing between the two chuck bodies is adjusted by the adjustment components to achieve the clamping and loosening of the rope cap. In addition, the device can be applied to rope caps of different models because the spacing between the chuck bodies is adjustable. The device can achieve a stable fixed connection between the weighting rod and the testing instrument, improve the stability of the lifting process of the weighting rod and the testing instrument, and the device is easy to install and remove, simple to operate, and convenient for the rapid lifting and lowering of the weighting rod and the testing instrument.

[0021] The invention discloses a working method of a rope cap fixing chuck for optical fiber testing: when lifting a weighted rod and a testing instrument, the rope cap is placed in the gap between two chuck bodies, and the gap between the two chuck bodies is adjusted by an adjusting component, so that the rope cap is clamped by the two chuck bodies, thereby improving the stability of the lifting process of the weighted rod and the testing instrument. After the instrument is taken out of the well after the test, the gap between the two chuck bodies is adjusted by the adjusting component to increase the gap between the two chuck bodies, and the rope cap is taken out of the gap, and the whole operation process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall structural assembly diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the chuck structure of the present invention;

[0024] Figure 3 A schematic diagram of the chuck structure of the present invention;

[0025] Figure 4 It is a rope cap structure diagram of the present invention;

[0026] Figure 5 This is the general diagram of the test wellhead equipment.

[0027] Among them: 1. Oil and gas well Christmas tree; 2. Test blowout preventer; 3. Climbing ladder; 4. Construction pulley; 5. Sky pulley; 6. Rope cap; 7. Chuck body; 10. Support rod; 11. Locking rod; 12. Chuck lifting ring; 13. Chuck handle; 14. Adjustment component; 15. Limit adjustment structure; 16. Reset component. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0031] See also Figure 1 The present invention discloses a rope cap fixing chuck for optical fiber testing, comprising two chuck bodies 7, a gap for clamping a rope cap 6 between the two chuck bodies 7, the rope cap 6 is clamped by the two chuck bodies 7, and then the rope cap 6 is fixed, the weighting rod and the testing instrument are connected through the rope cap 6, and then the weighting rod and the testing instrument are lifted by the device, such as Figure 2 and Figure 3 The diagram is a schematic diagram of the chuck structure of the present invention. The two chuck bodies 7 are provided with an adjusting component 14 for adjusting the gap size. The adjusting component 14 is used to adjust the distance between the two chuck bodies 7 to achieve the tightening and loosening of the rope cap 6. In addition, since the distance between the chuck bodies 7 is adjustable, the device can be applied to rope caps 6 of different models, such as Figure 4 The structure diagram of the rope cap of the present invention is shown. Before use, firstly increase the gap between the two chuck bodies 7 by the adjusting component 14, clamp the rope cap 6 between the two chuck bodies 7, then decrease the gap between the two chuck bodies 7 by the adjusting component 14, firmly fix the rope cap 6 between the two chuck bodies 7, and then connect the weighting rod and the test instrument by the rope cap 6, and lift and lower the weighting rod and the test instrument. After fixing the test instrument by the chuck on the ground, lift the instrument to the wellhead by the pulley, remove the chuck and safely lower it into the well, install the chuck after the instrument is out of the wellhead, lift the instrument out of the wellhead and safely lower it to the ground, so as to achieve the purpose of safe and efficient operation. The device can realize the stable fixed connection between the weighting rod and the test instrument, improve the stability of the lifting process of the weighting rod and the test instrument, and the device is easy to install and remove, simple to operate, and convenient for the rapid lifting and lowering of the weighting rod and the test instrument.

[0032] Preferred embodiment one:

[0033] See also Figure 1The present invention discloses a rope cap fixing chuck for optical fiber testing, comprising two chuck bodies 7, a gap for clamping a rope cap 6 between the two chuck bodies 7, and an adjusting component 14 for adjusting the size of the gap. The device can realize a stable fixed connection between a weighted rod and a test instrument, improve the stability of the weighted rod and the test instrument during the lifting process, and the device is easy to install and remove, simple to operate, and convenient for the rapid lifting and lowering of the weighted rod and the test instrument.

[0034] Preferred embodiment 2:

[0035] Based on the above embodiment, the adjustment component 14 includes a plurality of locking rods 11, which are inserted into the two chuck bodies 7, and the chuck bodies 7 can slide on the locking rods 11. A limit adjustment structure 15 is provided on the locking rod 11, and the limit adjustment structure 15 is located on both sides of the chuck body 7. By adjusting the limit adjustment structure 15, the distance between the two chuck bodies 7 can be changed, thereby realizing the clamping and loosening of the rope cap 6.

[0036] The locking rods 11 are arranged symmetrically about the midpoint of the chuck body 7 .

[0037] Preferred embodiment three:

[0038] See also Figure 1 Different from the second embodiment, this embodiment provides another preferred embodiment, the adjustment component 14 includes a plurality of locking rods 11, the ends of the locking rods 11 are fixed on one chuck body 7, and the locking rods 11 are movably inserted into the other chuck body 7. A limited adjustment structure 15 is provided on the locking rod 11, and the inserted chuck body 7 is located between the limited adjustment structure 15 and the other chuck body 7, see Figure 3 By adjusting the limit adjustment structure 15 , the distance between the two chuck bodies 7 can be changed, thereby achieving the clamping and loosening of the rope cap 6 .

[0039] Preferably, the limit adjustment structure 15 can be one of the following structures:

[0040] A nut is sleeved on the locking rod 11, and the nut and the locking rod 11 are matched with each other through threads;

[0041] A latch is provided on the locking rod 11 , and a plurality of through holes for the latch are provided on the locking rod 11 , so as to match different rope caps 6 , and the chuck body 7 is limited by the latch.

[0042] Preferred embodiment four:

[0043] Based on the above embodiment, a resetting component 16 for resetting the chuck body 7 is provided between the two chuck bodies 7 . The resetting component 16 is used for quickly resetting the rope cap 6 after it is taken out from between the two chuck bodies 7 .

[0044] The reset component 16 includes a plurality of support rods 10, which are passed through one chuck body 7 and fixed to another chuck body 7. A spring is sleeved on the support rods 10 and is located between the two chuck bodies 7. When the rope cap 6 is taken out from between the two chuck bodies 7, the chuck bodies 7 can be reset by the spring.

[0045] Preferred embodiment five:

[0046] Different from the fourth embodiment, this embodiment provides another preferred embodiment, in which a reset component 16 for resetting the chuck body 7 is arranged between the two chuck bodies 7 , and the reset component 16 is used for quickly resetting the rope cap 6 after it is taken out from between the two chuck bodies 7 .

[0047] The reset component 16 comprises a plurality of springs, both ends of which are respectively fixed on the two chuck bodies 7, and the springs are always in a tension state. When the rope cap 6 is taken out from between the two chuck bodies 7, the chuck bodies 7 can be reset by the springs.

[0048] Preferred embodiment six:

[0049] Based on the above embodiment, at least one chuck lifting ring 12 is provided on each chuck body 7. The rope is fixedly connected to the chuck lifting ring 12 to facilitate the lifting of the chuck.

[0050] The chuck lifting ring 12 is disposed on the chuck body 7 , and the chuck lifting ring 12 is symmetrically arranged about the geometric center of the two chuck bodies 7 , which is beneficial to maintaining the stability of the chuck and the entire device.

[0051] Preferred embodiment seven:

[0052] Based on the above embodiment, a chuck handle 13 is provided on the chuck body 7 to facilitate carrying of the chuck.

[0053] The chuck handle 13 is fixedly arranged on one of the chuck bodies 7 .

[0054] Preferably, see Figure 4 A reduced diameter is provided on the rope cap 6, and two chuck bodies 7 are clamped on the reduced diameter of the rope cap 6, so that the rope cap 6 is stably fixed on the chuck.

[0055] Based on the above structure, the present invention discloses a working method of a rope cap fixing chuck for optical fiber testing, comprising the following steps:

[0056] When lifting the weighted rod and the testing instrument, the rope cap 6 is placed in the gap between the two chuck bodies 7, and the gap between the two chuck bodies 7 is adjusted by the adjusting component 14 so that the rope cap 6 is clamped by the two chuck bodies 7;

[0057] After the test is completed and the instrument is taken out of the well, the gap between the two chuck bodies 7 is adjusted by the adjusting component 14 to increase the gap between the two chuck bodies 7, and the rope cap 6 is taken out from the gap.

[0058] In another feasible embodiment of the present invention, the following is adaptively modified according to circumstances. This embodiment discloses a working method of a rope cap fixing chuck for optical fiber testing: when lifting the weight rod and the test instrument, the rope cap 6 is placed in the gap between the two chuck bodies 7, and the size of the gap between the two chuck bodies 7 is adjusted by the adjusting component 14, so that the rope cap 6 is clamped by the two chuck bodies 7, thereby improving the stability of the lifting process of the weight rod and the test instrument. After the test is completed and the instrument is taken out of the well, the size of the gap between the two chuck bodies 7 is adjusted by the adjusting component 14, so that the gap between the two chuck bodies 7 is increased, and the rope cap 6 is taken out of the gap. The whole operation process is simple and convenient.

[0059] Embodiment eight:

[0060] A working method of a rope cap fixing chuck for optical fiber testing:

[0061] First, the gap between the two chuck bodies 7 is enlarged by adjusting the component 14, and the reduced diameter of the rope cap 6 is clamped between the two chuck bodies 7;

[0062] Then, the opening of the two chuck bodies 7 is adjusted and reduced by the adjusting component 14, and the rope cap 6 is firmly fixed between the two chuck bodies 7;

[0063] After the ground personnel connect the chuck lifting ring 12 with a rope, they lift the chuck and the instrument to the top of the test lubricant preventer 2 through the rope and the sky pulley 5 of the oil and gas tree, and pass it to the operator at the wellhead. The operator lowers the instrument into the test lubricant preventer 2. Figure 5 FIG. 1 is a simulation diagram of on-site construction of an optical fiber testing experiment using the present invention;

[0064] After installing the construction pulley 4, remove the chuck, put on the blowout preventer pressure cap and lower the instrument into the well;

[0065] When the instrument is out of the well after the test, the wellhead operator clamps the rope cap 6 with the chuck, and the ground personnel then lift the instrument out of the wellhead through the sky pulley 5 provided with the oil and gas tree and slowly lower it to the ground.

[0066] The present invention can achieve the following: after the instrument is fixed on the ground by a chuck, the instrument is lifted to the wellhead by a pulley, the chuck is removed and safely lowered into the well, the chuck is installed after the instrument is out of the wellhead, and the instrument is lifted out of the wellhead and safely lowered to the ground, thereby achieving the effect of safe and efficient operation.

[0067] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A cord cap fixing chuck for optical fiber testing, characterized in that: It comprises two chuck bodies (7), a gap for clamping a rope cap (6) is provided between the two chuck bodies (7), and an adjustment component (14) for adjusting the size of the gap is arranged on the two chuck bodies (7).

2. A cord cap fixing chuck for optical fiber testing as claimed in claim 1, characterized in that: The adjustment component (14) comprises a plurality of locking rods (11), wherein the locking rods (11) are inserted into the chuck body (7), and a limit adjustment structure (15) is arranged on the locking rods (11), and the limit adjustment structure (15) is located on both sides of the chuck body (7).

3. A rope cap fixing chuck for optical fiber testing as claimed in claim 2, characterized in that: The locking rod (11) is arranged symmetrically about the midpoint of the chuck body (7).

4. A cord cap fixing chuck for optical fiber testing as claimed in claim 3, characterized in that: A resetting component (16) for resetting the chuck body (7) is arranged between the two chuck bodies (7).

5. A cord cap fixing chuck for optical fiber testing as claimed in claim 4, characterized in that: The reset component (16) comprises a plurality of support rods (10), wherein the support rods (10) are passed through one chuck body (7) and fixed on another chuck body (7), and a spring is sleeved on the support rods (10), and the spring is located between the two chuck bodies (7).

6. A cord cap fixing chuck for optical fiber testing as claimed in claim 5, characterized in that: Each chuck body (7) is provided with at least one chuck lifting ring (12).

7. A cord cap fixing chuck for optical fiber testing as claimed in claim 6, characterized in that: The chuck lifting ring (12) is arranged symmetrically about the geometric center of the two chuck bodies (7).

8. A rope cap fixing chuck for optical fiber testing as claimed in claim 7, characterized in that: The chuck body (7) is provided with a chuck handle (13).

9. A rope cap fixing chuck for optical fiber testing as claimed in claim 8, characterized in that: The chuck handle (13) is fixedly arranged on one of the chuck bodies (7).

10. A method for operating the rope cap fixing chuck for optical fiber testing as claimed in claim 1, characterized in that: The following steps are involved: When lifting the weighted rod and the testing instrument, the rope cap (6) is placed in the gap between the two chuck bodies (7), and the size of the gap between the two chuck bodies (7) is adjusted by the adjusting component (14) so ​​that the rope cap (6) is clamped by the two chuck bodies (7); After the test is completed and the instrument is taken out of the well, the gap between the two chuck bodies (7) is adjusted by means of an adjusting component (14) so ​​that the gap between the two chuck bodies (7) is increased, and the rope cap (6) is taken out of the gap.

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