CN216176219U - Logging cable unloading cutting device - Google Patents
Logging cable unloading cutting device Download PDFInfo
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- CN216176219U CN216176219U CN202122677673.9U CN202122677673U CN216176219U CN 216176219 U CN216176219 U CN 216176219U CN 202122677673 U CN202122677673 U CN 202122677673U CN 216176219 U CN216176219 U CN 216176219U
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- supporting seat
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- logging cable
- barrel
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Abstract
The utility model relates to a logging cable unloading and cutting device which comprises a base, wherein a supporting seat is welded in the center of the top surface of the base, a central hole of the supporting seat is communicated with a central hole of the base, a hydraulic cutter is installed on the side wall of the supporting seat, the axis of the hydraulic cutter is perpendicular to the axis of the supporting seat, the blade of the hydraulic cutter is aligned to the central hole of the supporting seat, a socket barrel is fixed at the top of the supporting seat, a vertical barrel is inserted in the socket barrel, a tapered hole with a large upper part and a small lower part is formed along the axis of the vertical barrel, a pair of tapered wedges are inserted in the tapered hole, the two tapered wedges form a complete taper with the large upper part and the small lower part after being surrounded, a wedge clamping hole for clamping a logging cable is formed along the axis of the tapered wedges, and vertical seams for the logging cable to pass through are respectively arranged on the side walls of the base, the supporting seat, the socket barrel and the vertical barrel. The tops of the two conical wedges are respectively provided with a semicircular cover and connected to the vertical cylinder through a chain. The device has simple structure, can cut off the cable rapidly under the condition of unloading the load of the crown block, and can ensure the personal safety of operators.
Description
Technical Field
The utility model relates to a wellhead device for well logging, in particular to a well logging cable unloading and cutting device, and belongs to the technical field of well logging auxiliary tools.
Background
In the process of oil gas exploration and development, logging is one of important means for acquiring geological data in oil gas exploration engineering, after drilling is completed, the part above a wellhead flange needs to be detached, a top pulley and a ground pulley are installed at a wellhead, the upper end of a logging cable bypasses the top pulley and the ground pulley and is controlled by a winch to be slowly released underground, and the lower end of the logging cable suspends a logging instrument and then is logged underground, so that stratum related parameters and the like are acquired. During logging, the dead weight of a cable in a well plus the weight of an instrument and the friction generated by the movement of the cable and the instrument in the well can bear the load of 3 to 4 tons as high as normal logging cables.
Due to the complex well condition, once the instrument string is stuck in the well, the logging operation can only be stopped, and the fishing operation of the stuck-releasing logging instrument has to be carried out. A cable jar is generally used in the unfreezing process of the logging instrument, a downward force is applied to an instrument string through vibration generated by the cable jar, the instrument moves downward, the unfreezing is obtained, and the logging cable bears a larger load in the unfreezing process.
In the well logging process, if emergency such as well kick or blowout occurs, the tension on the section of cable from the winch to the top and bottom pulley and then to the position above the wellhead device must be quickly removed, the well logging cable is quickly cut off from the wellhead, the wellhead is quickly closed, and larger accidents are avoided.
At present, a cutter head of the commonly used cable breaker is vertical, and a cable can only be operated at an angle that the cable is parallel to the ground when the cable is broken because the cable must transversely enter between knife edges. And the logging cable is in a vertical state during logging, so that the tool cannot be used. In addition, the logging cable bears a large load during working, huge tension is released at the moment of cutting off, the overhead sheave, the ground sheave and the winch can be impacted by huge load, and the flight at the broken end of the cable is easy to cause injury accidents to personnel and equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a logging cable unloading and cutting device which is simple and light in structure, easy to disassemble and transport, convenient to use, safe and convenient to operate, capable of cutting off a cable rapidly under the condition that overhead pulley load is unloaded, and capable of ensuring the personal safety of operators.
In order to solve the technical problems, the unloading and cutting device for the logging cable comprises a base, the center of the top surface of the base is welded with a supporting seat, the center hole of the supporting seat is communicated with the center hole of the base, the side wall of the supporting seat is provided with a hydraulic cutter, the axis of the hydraulic cutter is vertical to the axis of the supporting seat, the blade of the hydraulic cutter is aligned with the center hole of the supporting seat, the top of the supporting seat is fixed with a bearing and inserting barrel, a vertical cylinder is inserted in the socket cylinder, a tapered hole with a large upper part and a small lower part is arranged along the axis of the vertical cylinder, a pair of tapered wedges are inserted in the tapered hole, the two tapered wedges form a complete taper with a thick upper part and a thin lower part after being surrounded, a wedge clamping hole for clamping a logging cable is arranged along the axis of the tapered wedges, and the side walls of the base, the supporting seat, the socket cylinder and the vertical cylinder are respectively provided with a vertical seam for a logging cable to pass through.
As an improvement of the utility model, the tops of the two conical wedges are respectively provided with a semicircular cover, the semicircular covers are connected with chains, and the other ends of the chains are fixed on the vertical cylinder.
As a further improvement of the utility model, the periphery of the upper part of the vertical cylinder is provided with an external thread, a vertical cylinder threaded sleeve is screwed on the external thread of the vertical cylinder, the side wall of the vertical cylinder threaded sleeve is provided with a threaded sleeve vertical seam for a logging cable to pass through, and the top of the vertical cylinder threaded sleeve is positioned below the semicircular cover.
As a further improvement of the utility model, the wedge holding holes are respectively fixed with inner liners.
As a further improvement of the utility model, a plurality of radial through holes are uniformly distributed on the circumference of the vertical barrel thread sleeve.
As a further improvement of the utility model, the outer wall of the vertical cylinder is symmetrically welded with a vertical cylinder handle.
As a further improvement of the utility model, the base is circular.
As a further improvement of the utility model, the upper surface of the base is symmetrically provided with base lifting lugs.
As a further improvement of the utility model, an oil port of the hydraulic cutting knife is connected with an oil outlet of the hydraulic manual pump through a high-pressure oil pipe.
Compared with the prior art, the utility model has the following beneficial effects: 1. the logging cable is led out from the crown block and then vertically extends towards the underground, when the logging cable meets the well kick or blowout sign, the base is arranged on a wellhead platform, and the logging cable is embedded into the supporting seat and the central hole of the base from the vertical seam of the base, the vertical seam of the supporting seat and the vertical seam of the socket barrel; then, sleeving and centering the vertical cylinder from the vertical seam of the vertical cylinder, and inserting the lower end of the vertical cylinder into the socket cylinder; and then enclosing two conical wedges on two sides of a logging cable, wherein the logging cable is positioned in a wedge clamping hole, the lower end of each conical wedge is inserted into and knocked tightly by a conical hole of a vertical cylinder, then lowering the logging cable, the conical wedges are clamped tightly in the conical holes of the vertical cylinders, the wedge clamping holes lock the logging cable and bear the weight of a logging instrument and the like below, and at the moment, the hydraulic cutter moves to cut off the logging cable from the lower part of a clamping point. Because the tension on the top pulley, the ground pulley and the winch is released in advance, the logging cable is not subjected to huge impact load when being cut off, and the cable above the logging cable cannot cause injury accidents.
2. The device can realize the operation of cutting off the cable at the wellhead under the condition that the instrument and the cable are still in the well and the cable still has larger load in the well logging construction process, thereby not only ensuring the safety of personnel and equipment, but also greatly improving the timeliness.
3. The tops of the two conical wedges are connected to the vertical cylinder through a chain, so that the conical wedges can be prevented from falling into a well. The spanner is inserted into the radial through hole of the vertical barrel screw sleeve, the vertical barrel screw sleeve is reversely rotated to move upwards, and when the upper end of the vertical barrel screw sleeve abuts against the lower part of the semicircular cover, the conical wedge iron is gradually pulled out of the conical hole of the vertical barrel.
4. The hydraulic manual pump is pressed by hand, pressure oil enters an oil port of the hydraulic cutter through the high-pressure oil pipe, the cutter is driven to act to cut off the logging cable, an operator can operate in a well platform workshop far away from a well mouth, and safety of the operator is guaranteed to the maximum extent.
5. The vertical cylinder handle is arranged to facilitate taking of the vertical cylinder, and the base lifting lug is arranged to facilitate carrying of the base and the supporting seat and the hydraulic cutting knife on the base. The whole device can be disassembled, has simple and light structure, is easy to transport and is more convenient to use.
6. In the actual logging construction, contain high-pressure gas when knowing the construction block stratum, have the risk of kick, blowout, have under emergency when the operation demand of disconnected cable of well head, can assemble this device in advance, place and do not hinder normal operation department for use in the well head. When well kick and blowout occur in the well logging process, after a command of cable breakage is received, the device is rapidly moved to a well mouth, a vertical joint is aligned with the cable and horizontally pushed to the device, so that the well logging cable completely enters a relatively centered position in the device, a tool is used for knocking tightly after a conical wedge iron is inserted, and a winch operator is instructed to transfer the cable to a free state. And all personnel at the well mouth withdraw to a safe position, and cable breaking operators move the hydraulic cylinders to the platform workshop to perform cable pressing and cable breaking operations.
Drawings
The utility model will be described in further detail with reference to the following drawings and detailed description, which are provided for reference and illustration purposes only and are not intended to limit the utility model.
Fig. 1 is a front view of the lower part of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a front view of the upper portion of the present invention.
Fig. 5 is an enlarged left view of fig. 4.
Fig. 6 is a top view of fig. 4 with the chain removed.
Fig. 7 is a working state diagram of the present invention.
In the figure: 1. a base; 1a, a base perps; 1b, lifting lugs on the base; 2. a supporting seat; 2a, supporting seat vertical seams; 3. a hydraulic cutter; 4. a socket barrel; 4a, vertically sewing the socket cylinder; 5. a vertical cylinder; 5a, vertical cylinder vertical seams; 5b, a vertical cylinder handle; 6. a vertical barrel thread sleeve; 6a, vertically sewing thread sleeves; 7. a conical wedge; 7a, a semicircular cover; 7b, a wedge clamping hole; 8. and a chain.
Detailed Description
As shown in fig. 1 to 7, the logging cable unloading and cutting device of the utility model comprises a base, wherein a supporting seat is welded at the center of the top surface of the base, the center hole of the supporting seat is communicated with the center hole of the base, a hydraulic cutter is installed on the side wall of the supporting seat, the axis of the hydraulic cutter is perpendicular to the axis of the supporting seat, the blade of the hydraulic cutter is aligned with the center hole of the supporting seat, and an oil port of the hydraulic cutter is connected with an oil outlet of a hydraulic manual pump through a high-pressure oil pipe.
The top of the supporting seat is fixed with a socket barrel, a vertical barrel is inserted in the socket barrel, a tapered hole with a large top and a small bottom is arranged along the axis of the vertical barrel, a pair of tapered wedges are inserted in the tapered hole, the two tapered wedges form a complete taper with a thick top and a thin bottom after being surrounded, a wedge clamping hole for clamping a logging cable is arranged along the axis of the tapered wedges, and vertical seams for the logging cable to pass through are respectively arranged on the side walls of the base, the supporting seat, the socket barrel and the vertical barrel.
The tops of the two conical wedges are respectively provided with a semicircular cover, the semicircular covers are connected with chains, and the other ends of the chains are fixed on the vertical cylinder. And the wedge iron clamping holes are respectively fixed with a lining.
The periphery of the upper part of the vertical cylinder is provided with external threads, a vertical cylinder threaded sleeve is screwed on the external threads of the vertical cylinder, the side wall of the vertical cylinder threaded sleeve is provided with a threaded sleeve vertical seam for a logging cable to pass through, and a plurality of radial through holes are uniformly distributed on the circumference of the vertical cylinder threaded sleeve; the top of the vertical barrel thread sleeve is positioned below the semicircular cover.
The base is circular, and the outer wall symmetry welding of vertical cylinder has the vertical cylinder handle. The upper surface of the base is symmetrically provided with base lifting lugs.
The logging cable is led out from the crown block and then vertically extends towards the underground, when the logging cable meets the well kick or blowout sign, the base is arranged on a wellhead platform, and the logging cable is embedded into the supporting seat and the central hole of the base from the vertical seam of the base, the vertical seam of the supporting seat and the vertical seam of the socket barrel; then, sleeving and centering the vertical cylinder from the vertical seam of the vertical cylinder, and inserting the lower end of the vertical cylinder into the socket cylinder; and then enclosing two conical wedges on two sides of a logging cable, wherein the logging cable is positioned in a wedge clamping hole, the lower end of each conical wedge is inserted into and knocked tightly by a conical hole of a vertical cylinder, then lowering the logging cable, the conical wedges are clamped tightly in the conical holes of the vertical cylinders, the wedge clamping holes lock the logging cable and bear the weight of a logging instrument and the like below, and at the moment, the hydraulic cutter moves to cut off the logging cable from the lower part of a clamping point. Because the tension on the top pulley, the ground pulley and the winch is released in advance, the logging cable is not subjected to huge impact load when being cut off, and the cable above the logging cable cannot cause injury accidents.
The spanner is inserted into the radial through hole of the vertical barrel screw sleeve, the vertical barrel screw sleeve is reversely rotated to move upwards, and when the upper end of the vertical barrel screw sleeve abuts against the lower part of the semicircular cover, the conical wedge iron is gradually pulled out of the conical hole of the vertical barrel.
The hydraulic manual pump is pressed by hand, pressure oil enters an oil port of the hydraulic cutter through the high-pressure oil pipe, the cutter is driven to act to cut off the logging cable, an operator can operate in a well platform workshop far away from a well mouth, and safety of the operator is guaranteed to the maximum extent.
In the actual logging construction, contain high-pressure gas when knowing the construction block stratum, have the risk of kick, blowout, have under emergency when the operation demand of disconnected cable of well head, can assemble this device in advance, place and do not hinder normal operation department for use in the well head. When well kick and blowout occur in the well logging process, after a command of cable breakage is received, the device is rapidly moved to a well mouth, a vertical joint is aligned with the cable and horizontally pushed to the device, so that the well logging cable completely enters a relatively centered position in the device, a tool is used for knocking tightly after a conical wedge iron is inserted, and a winch operator is instructed to transfer the cable to a free state. And all personnel at the well mouth withdraw to a safe position, and cable breaking operators move the hydraulic cylinders to the platform workshop to perform cable pressing and cable breaking operations.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.
Claims (9)
1. The utility model provides a logging cable off-load cutting device, includes the base, its characterized in that: the utility model discloses a well logging cable, including base, supporting seat, socket joint section of thick bamboo and vertical section of thick bamboo, the top surface center welding of base has the supporting seat, the centre bore of supporting seat link up mutually with the centre bore of base, hydraulic pressure cutting knife is installed to the lateral wall of supporting seat, the axis perpendicular to supporting seat's of hydraulic pressure cutting knife axis, the supporting seat centre bore is aimed at to the cutting edge of hydraulic pressure cutting knife, the top of supporting seat is fixed with the socket joint section of thick bamboo, the vertical section of thick bamboo that has inserted in the socket joint section of thick bamboo, be equipped with big-end-up's bell mouth along the axis of vertical section of thick bamboo, the plug-in-spigot joint has a pair of toper drift, and two toper drifts surround the back and constitute thick complete toper of going up down thin, are equipped with the drift centre gripping hole of centre gripping well logging cable along the axis of toper drift, the lateral wall of base, supporting seat, socket joint section of thick bamboo and vertical section of thick bamboo is equipped with the perps that supplies well logging cable to pass through respectively.
2. The wireline unloading cut-off device of claim 1, wherein: the top of each of the two conical wedges is provided with a semicircular cover, each semicircular cover is connected with a chain, and the other end of each chain is fixed on the vertical cylinder.
3. The wireline unloading cut-off device of claim 2, wherein: the periphery of the upper portion of the vertical cylinder is provided with an external thread, the vertical cylinder external thread is screwed with a vertical cylinder barrel, the side wall of the vertical cylinder barrel is provided with a barrel vertical joint for a logging cable to pass through, and the top of the vertical cylinder barrel is located below the semicircular cover.
4. The wireline unloading cut-off device of claim 1, wherein: and the wedge iron clamping holes are respectively and fixedly provided with a lining.
5. The wireline unloading cut-off device of claim 3, wherein: a plurality of radial through holes are uniformly distributed on the circumference of the vertical barrel thread sleeve.
6. The wireline unloading cut-off device of any of claims 1-5, wherein: the outer wall of the vertical cylinder is symmetrically welded with vertical cylinder handles.
7. The wireline unloading cut-off device of any of claims 1-5, wherein: the base is circular.
8. The wireline unloading cut-off device of any of claims 1-5, wherein: the upper surface of the base is symmetrically provided with base lifting lugs.
9. The wireline unloading cut-off device of any of claims 1-5, wherein: and an oil port of the hydraulic cutter is connected with an oil outlet of the hydraulic manual pump through a high-pressure oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122677673.9U CN216176219U (en) | 2021-11-03 | 2021-11-03 | Logging cable unloading cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122677673.9U CN216176219U (en) | 2021-11-03 | 2021-11-03 | Logging cable unloading cutting device |
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| Publication Number | Publication Date |
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| CN216176219U true CN216176219U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122677673.9U Active CN216176219U (en) | 2021-11-03 | 2021-11-03 | Logging cable unloading cutting device |
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| CN (1) | CN216176219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559683A (en) * | 2022-12-08 | 2023-01-03 | 易初机械装备有限公司 | Logging cable sealing suspension system |
-
2021
- 2021-11-03 CN CN202122677673.9U patent/CN216176219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559683A (en) * | 2022-12-08 | 2023-01-03 | 易初机械装备有限公司 | Logging cable sealing suspension system |
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