CN214221110U

CN214221110U - Cable logging bridle

Info

Publication number: CN214221110U
Application number: CN202022794452.5U
Authority: CN
Inventors: 路艳齐; 刘鹤龄; 曹巍
Original assignee: China Institute of Radio Wave Propagation CETC 22 Research Institute
Current assignee: China Institute of Radio Wave Propagation CETC 22 Research Institute
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-17
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a cable logging bridle, including following part: the both ends of safe pulling force stick are connected with top connection and adapter through the screw thread respectively, and the stick is prevented changeing in the installation between top connection and adapter, prevent changeing the stick cover on safe pulling force stick to set up the oilhole on preventing changeing the stick, still the balanced gum cover of ligature between top connection and adapter, seal safe pulling force stick in the cavity between top connection, adapter and balanced gum cover, set up the oil filler point more than two on the top connection. The utility model discloses a cable logging halter, which improves the structural design of the cable-laying part of the halter, so that the halter is simple and convenient to disassemble, assemble, maintain and maintain, and the professional requirement on the user is reduced; the internal and external balance structure of the safety tension rod is optimized, and the bridle head can work safely and reliably in extreme environments such as high temperature and high pressure in a petroleum well.

Description

Cable logging bridle

Technical Field

The utility model relates to an oil logging field, specific cable logging bridle that says so relates to in this field.

Background

The bridle used in the field of petroleum logging can realize the connection of a logging cable and a logging instrument in a cabling mode, including mechanical connection and electrical connection; the bridle head mostly adopts a safety tension rod as a structural weakness, and the safety tension rod can be passively broken when an instrument is blocked so as to protect a logging cable from being damaged; when the bridle head works in high-temperature and high-pressure mud liquid, the safety tension rod is required to be in a pressure balance state, the safety tension rod is prevented from bearing loads generated by internal and external pressure imbalance, and the accuracy of the breaking force of the tension rod is ensured.

The internal and external pressure balance of some existing safety bridle head pull rods depends on filling high-temperature insulating silicone grease in a closed cavity where the pull rod is located. The silicone grease isolates the inner sealing plug from external slurry, so that the insulation between cable cores is ensured. The high-temperature insulating silicone grease has poor fluidity, is difficult to completely fill the closed cavity where the safe tension bar is positioned, and can cause the unbalance of the internal and external pressures of the safe tension bar to influence the safe work of the headstall. The high temperature silicone grease needs to be cleaned and replaced periodically to ensure the insulation between the internal sealing plug cable cores. The silicone grease is located inside the instrument, and when the instrument is cleaned, a plurality of parts need to be disassembled and assembled, so that the process is complex, and the professional requirement is high.

And the tension rod is placed in a sealed balance capsule by some headsets, and the internal and external pressure balance of the safe tension rod is realized by filling high-temperature insulating silicone grease. The halter has the same problems as the halter in the prior art, such as certain potential safety hazard and silicone grease cleanness.

And silicone oil is filled in a sealed cavity where the safety tension rod is positioned, and the balance of the internal pressure and the external pressure of the safety tension rod is realized through a balance piston. The high-temperature silicone oil has good fluidity relative to the insulating silicone grease, and can completely fill the closed cavity in which the safety tension rod is positioned. When the high-temperature silicone oil is conventionally cleaned, only contaminated silicone oil needs to be discharged through the oil hole, and the cleaned high-temperature silicone oil is injected additionally, and more parts do not need to be disassembled and assembled, so that the process is simple and convenient. However, such a headstall pressure balancing structure is relatively complicated.

In other bridle heads, the safe tension rod is also placed in a sealed balance capsule, and the balance of the internal pressure and the external pressure of the safe tension rod is ensured by filling high-temperature silicone oil in the balance capsule. But its oil filler point is located the instrument inside, and the oiling is inconvenient. In order to ensure the centralizing effect, the radial space between the centralizing shell and the salvaging shell is narrow, mud is difficult to remove, and the mud can be accumulated outside the balance capsule in serious cases, so that the balance of the internal pressure and the external pressure of the safe tension rod is influenced, and potential safety hazards are brought. When the cable is cabled, a plurality of parts still need to be disassembled, and the workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a cable logging bridle of interior outer balanced structure of safe pulling force stick has just been optimized is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme:

in a cable logging headstall, the improvement comprising: the two ends of the safe tension rod are respectively connected with the upper joint and the adapter through threads, an anti-rotation rod is arranged between the upper joint and the adapter, the anti-rotation rod is sleeved on the safe tension rod, oil passing holes are formed in the anti-rotation rod, a balance rubber sleeve is bound between the upper joint and the adapter, the safe tension rod is sealed in a cavity among the upper joint, the adapter and the balance rubber sleeve, more than two oil filling holes are formed in the upper joint and are communicated with the cavity, silicone oil is filled in the cavity, an oil filling screw is arranged on the oil filling hole and is sealed with the oil filling hole through a sealing ring, a sealing plug hole is arranged on the end face of the upper joint in the cavity, a sealing cap is connected with the tail end of the upper joint through threads, a centering ring is arranged at the necking part of the adapter, one end of a salvaging shell is connected with the upper joint through threads, and the other end of the salvaging shell is lapped on the centering ring, and set up more than two mud access holes on salvaging the shell, the one end of sealing plug seat and the front end threaded connection of adapter, the other end and the cable-making steel cylinder threaded connection, arrange the sealing consent and install the sealing plug subassembly on the adjacent terminal surface of sealing plug seat and cable-making steel cylinder, the cable-making awl frame subassembly of logging cable is beaten the cable after through preventing changeing the fix with screw inside the cable-making steel cylinder, set up more than two threaded holes and sealed with the screw on the cable-making steel cylinder, pack the silicone grease in the cable-making steel cylinder intussuseption.

Furthermore, oil passing holes are formed in the upper joint and the adapter, and a center hole is formed in the adapter.

Furthermore, a balance rubber sleeve is bound between the upper joint and the adapter through a high-strength alloy wire, and the balance rubber sleeve is made of high-temperature-resistant and corrosion-resistant fluororubber.

Furthermore, the oil injection screw and the oil injection hole are sealed through an O-shaped sealing ring.

Furthermore, a sealing plug assembly of the upper joint is sealed with the upper joint through an O-shaped sealing ring, and the sealing plug assembly comprises a single-core plug, a copper sleeve and a rubber sleeve.

Furthermore, more than two mud guide grooves are formed in the outer surface of the righting ring, and a cutting seam for cutting the righting ring is formed in one mud guide groove.

Furthermore, a radial sealing O-shaped sealing ring is arranged above the thread connected with the fishing shell at the upper joint, and a copper gasket is arranged between the fishing shell and the upper joint.

Furthermore, the threads at the two ends of the sealing plug seat are respectively provided with an O-shaped sealing ring, and anti-loosening screws are arranged between the sealing plug seat and the adapter and between the sealing plug seat and the cabling steel cylinder.

Furthermore, a radial O-shaped sealing ring is arranged on the anti-rotation screw.

The utility model has the advantages that:

the utility model discloses a cable logging halter, which improves the structural design of the cable-laying part of the halter, so that the halter is simple and convenient to disassemble, assemble, maintain and maintain, and the professional requirement on the user is reduced; the internal and external balance structure of the safety tension rod is optimized, and the bridle head can work safely and reliably in extreme environments such as high temperature and high pressure in a petroleum well.

Drawings

Fig. 1 is a schematic structural diagram of a cable logging bridle disclosed in embodiment 1 of the present invention;

fig. 2 is a schematic view of the position of an oil hole in a cable logging bridle disclosed in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a centralizing ring in a cable logging bridle disclosed in embodiment 1 of the present invention;

fig. 4 is the utility model discloses in the cable logging bridle mounting position schematic diagram of jam screw between sealing plug seat and adapter and the packing wire steel cylinder in embodiment 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1, as shown in fig. 1, this embodiment discloses a cable logging bridle, which includes the following components: the both ends of safe pulling force stick 24 are connected with top connection 7 and adapter 4 through the screw thread respectively, and the installation is prevented changeing stick 1 between top connection and adapter, prevents that top connection and adapter from taking place relative rotation, avoids safe pulling force stick to take place rotatory dropout. The anti-rotation rod is sleeved on the safe tension rod, the anti-rotation rod is provided with the oil passing hole, the balance rubber sleeve 25 is bound between the upper joint and the adapter, the safe tension rod is sealed in a cavity among the upper joint, the adapter and the balance rubber sleeve, more than two oil injection holes are arranged on the upper joint, each oil injection hole is communicated with the cavity, and high-temperature-resistant silicon oil can be filled in the cavity through each oil injection hole so as to balance the pressure inside and outside the cavity. And after filling, an oil injection screw 11 is arranged on the oil injection hole, and the oil injection screw and the oil injection hole are sealed through a sealing ring. Each oil filler point all distributes in the bridle outside, fills to annotate and fills and clean silicon oil all very simple and convenient.

The end face of the upper joint in the cavity is provided with a plurality of sealing plug holes and a sealing plug assembly 21, the protective cap 10 is in threaded connection with the tail end of the upper joint, and the necking part of the adapter is provided with the centering ring 2, so that the upper joint and the safe tension rod are centered, the safe tension rod is prevented from being influenced by bending moment, and safety is guaranteed. Salvage shell 6's one end and top connection threaded connection, the other end is taken on righting the ring to set up more than two mud access holes on salvaging the shell, come in and go out smoothly with ensureing that mud, avoid storing up inside salvaging the shell, realize the balance of internal and external pressure simultaneously.

One end of the sealing plug seat 5 is in threaded connection with the front end of the adapter, the other end of the sealing plug seat is in threaded connection with the cable-making steel cylinder 3, a plurality of sealing plug holes are arranged on the end faces of the sealing plug seat adjacent to the cable-making steel cylinder, the sealing plug assembly 26 is installed, and the cable-making conical frame assembly 30 of the logging cable is fixed inside the cable-making steel cylinder through the anti-rotation screws 8 after being cabled, so that the rotation and the axial movement of the cable-making conical frame assembly are prevented. Set up the threaded silicone grease hole of annotating more than two on the packing wire steel cylinder, from annotating the silicone grease hole and annotating insulating silicone grease in to packing wire steel cylinder and sealing up the threaded silicone grease hole with the screw after filling, reduce the mud invasion. The insulating silicone grease can isolate the slurry and the sealing plugs so as to ensure the insulation between the sealing plugs. The components related to cabling in the cabling steel cylinder and the bridle are independent through the sealing plug seat and are located at the tail end and the outer end of the bridle, and convenience in cable cabling or maintenance of the cabling components is improved.

As shown in fig. 2, the oil passing holes 31 are formed in the upper joint, the anti-rotation rod and the adapter, so that all parts of the safety tension rod are completely soaked in the silicone oil, and the balance of internal pressure and external pressure is realized. A central hole is formed in the adapter, so that cables can be conveniently wired.

The balance rubber sleeve is bound between the upper joint and the adapter through a high-strength alloy wire and is made of high-temperature-resistant and corrosion-resistant fluororubber. The oil injection screw and the oil injection hole are sealed through an O-shaped sealing ring. The sealing plug component of the upper joint is sealed with the upper joint through an O-shaped sealing ring, and the sealing plug component comprises a single-core plug, a copper sleeve, a rubber sleeve and the like.

As shown in fig. 3, more than two slurry guide grooves 32 are formed on the outer surface of the centralizing ring to ensure that the slurry can smoothly enter and exit. A slit 33 for cutting the centralizing ring is arranged on one of the mud guiding grooves, so that the centralizing ring is sleeved on the adapter, and only one slit can ensure that the centralizing ring is more firmly attached to the adapter to prevent the centralizing ring from falling into a well.

And an O-shaped sealing ring for radial sealing is arranged above the thread connected with the fishing shell on the upper joint, so that mud is prevented from invading the thread gap and is convenient to disassemble. In addition, a copper gasket 9 is arranged between the fishing shell and the upper joint to prevent the threads from loosening. And the screw threads at the two ends of the sealing plug seat are respectively provided with an O-shaped sealing ring, so that slurry is prevented from invading the screw threads and the inside of the horse head. As shown in fig. 4, the locking screws 34 are arranged between the sealing plug seat and the adapter and between the sealing plug seat and the cabling steel cylinder to prevent the threads from loosening. A radial O-shaped sealing ring is arranged on the anti-rotating screw to prevent mud from invading the inside of the headstall.

Claims

1. A cable logging bridle is characterized by comprising the following components: the two ends of the safe tension rod are respectively connected with the upper joint and the adapter through threads, an anti-rotation rod is arranged between the upper joint and the adapter, the anti-rotation rod is sleeved on the safe tension rod, oil passing holes are formed in the anti-rotation rod, a balance rubber sleeve is bound between the upper joint and the adapter, the safe tension rod is sealed in a cavity among the upper joint, the adapter and the balance rubber sleeve, more than two oil filling holes are formed in the upper joint and are communicated with the cavity, silicone oil is filled in the cavity, an oil filling screw is arranged on the oil filling hole and is sealed with the oil filling hole through a sealing ring, a sealing plug hole is arranged on the end face of the upper joint in the cavity, a sealing cap is connected with the tail end of the upper joint through threads, a centering ring is arranged at the necking part of the adapter, one end of a salvaging shell is connected with the upper joint through threads, and the other end of the salvaging shell is lapped on the centering ring, and set up more than two mud access holes on salvaging the shell, the one end of sealing plug seat and the front end threaded connection of adapter, the other end and the cable-making steel cylinder threaded connection, arrange the sealing consent and install the sealing plug subassembly on the adjacent terminal surface of sealing plug seat and cable-making steel cylinder, the cable-making awl frame subassembly of logging cable is beaten the cable after through preventing changeing the fix with screw inside the cable-making steel cylinder, set up more than two threaded holes and sealed with the screw on the cable-making steel cylinder, pack the silicone grease in the cable-making steel cylinder intussuseption.

2. The cable logging headstall of claim 1, wherein: the upper joint and the adapter are both provided with oil passing holes, and the adapter is provided with a central hole.

3. The cable logging headstall of claim 1, wherein: the balance rubber sleeve is bound between the upper joint and the adapter through a high-strength alloy wire and is made of high-temperature-resistant and corrosion-resistant fluororubber.

4. The cable logging headstall of claim 1, wherein: the oil injection screw and the oil injection hole are sealed through an O-shaped sealing ring.

5. The cable logging headstall of claim 1, wherein: the sealing plug component of the upper joint is sealed with the upper joint through an O-shaped sealing ring, and the sealing plug component comprises a single-core plug, a copper sleeve and a rubber sleeve.

6. The cable logging headstall of claim 1, wherein: more than two mud guide grooves are formed in the outer surface of the righting ring, and a cutting seam for cutting the righting ring is formed in one mud guide groove.

7. The cable logging headstall of claim 1, wherein: a radial sealing O-shaped sealing ring is arranged above the thread connected with the fishing shell on the upper joint, and a copper gasket is arranged between the fishing shell and the upper joint.

8. The cable logging headstall of claim 1, wherein: and O-shaped sealing rings are respectively arranged at the threads at the two ends of the sealing plug seat, and anti-loosening screws are arranged between the sealing plug seat and the adapter and between the sealing plug seat and the cabling steel cylinder.

9. The cable logging headstall of claim 1, wherein: and a radial O-shaped sealing ring is arranged on the anti-rotation screw.