CN205743800U - A kind of cable release device - Google Patents
A kind of cable release device Download PDFInfo
- Publication number
- CN205743800U CN205743800U CN201620641857.6U CN201620641857U CN205743800U CN 205743800 U CN205743800 U CN 205743800U CN 201620641857 U CN201620641857 U CN 201620641857U CN 205743800 U CN205743800 U CN 205743800U
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- paraffin
- unfreezing
- cable
- sector
- cylinder
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Abstract
This utility model relates to a kind of cable release device, and the periphery of wellhead cable is set with plastic liner, and plastic liner is provided with and axially extends and through bar seam, and the periphery of plastic liner is bonded with paraffin unfreezing cylinder.The internal diameter D1 of plastic liner is 1.25 ~ 1.5 times of wellhead cable outside diameter d.Paraffin unfreezing cylinder is surrounded formed by paraffin unfreezing sector post and paraffin unfreezing sector block, and the central angle alpha of paraffin unfreezing sector post cross section is more than or equal to 180 °, and the central angle of paraffin unfreezing sector block cross section is 360 ° of α.The central angle alpha of paraffin unfreezing sector post cross section is between 180 ° ~ 230 °.The lower section of paraffin unfreezing cylinder connects to have and is connected as a single entity with paraffin unfreezing cylinder and up big and down small paraffin taper guide head.This cable release device can directly proceed with logging operation in the case of not cutting off cable after unfreezing cable, and cable unfreezing.
Description
Technical field
This utility model relates to a kind of oil/gas drilling instrument, particularly relates to a kind of cable release device, belongs to oil gas and bores
Well tool technical field.
Background technology
In oil-gas exploration, development process, well logging is one of important means obtaining geologic information in HYDROCARBON EXPLORATION ENGINEERING,
The a series of activities such as drifting to be carried out, well logging, sidewall coring after finishing drilling, thus obtain stratum relevant parameter etc..At present
Logger mainly, after drilling well is completed, is sent in well with cable by well logging, and logger relies on self gravitation to enter bore hole
In pit shaft, from bottom to top complete logging tasks.
Owing to downhole conditions is complicated, be likely to encounter various problem, such as drilled well bore quality aspect have rate of deviation big,
The problems such as hole enlargement ratio is big, property of drilling fluid aspect has that drilling fluid sand carrying effect is poor, solid concentration is big, filter loss is big etc. and asks
Topic, drilled well bore quality problems, property of drilling fluid problem or wireline logging instrument be some reason such as time of staying length in well
Or multiple reasons, all easily cause logging cable and are stuck on the borehole wall by viscous.
Traditionally, cable is generally used drilling rod punching unfreezing fishing technique to carry out cable unfreezing after card.Drilling rod punching solution
Card fishing process is by being cut off by cable at well head, is gone into the well along cable together with drilling rod by fishing socket, passes through fishing socket
Cable is departed from the borehole wall adhered to, after fishing socket blocks logger, by weak for logging cable end above instrument
Pull at Dian, trip out logging cable, then pull out of hole and take out electric logger.
Drilling rod punching unfreezing fishing has the disadvantage in that (1) need to cut off cable from well head, causes cable loss；(2) salvage
Time is long, wastes time and energy；(3) it is susceptible to come off during card does not lives logger or the salvaging logging instrument that blocks, makes
Secondary is become to fall well；(4) logging tasks does not complete, and needs to repeat logging tasks.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, it is provided that a kind of cable release device, can
So that logging operation can be directly proceeded with after unfreezing cable, and cable unfreezing in the case of not cutting off cable.
For solving above technical problem, a kind of cable release device of the present utility model, including the well connecting logger
Mouth cable, the periphery of described wellhead cable is set with plastic liner, and described plastic liner is provided with and axially extends and through
Bar stitches, and the periphery of described plastic liner is bonded with paraffin unfreezing cylinder.
Relative to prior art, this utility model achieves following beneficial effect: be sleeved on by plastic liner by bar seam
On wellhead cable, then by melted paraffin liquid, paraffin unfreezing cylinder is bonded in plastic liner periphery, treats that paraffin liquid is complete
After cooling and solidifying, being put in well by paraffin unfreezing cylinder, the gap between plastic liner and cable can ensure that paraffin unfreezing
Cylinder is the most descending, and paraffin unfreezing cylinder relies on gravity to come downwards to cable and meets stuck point, owing to the external diameter of paraffin unfreezing cylinder is long-range
In cable, it is when stuck point crossed by paraffin unfreezing cylinder, cable is departed from the borehole wall adhered to and realizes unfreezing, the paraffin solution after unfreezing
Card cylinder continues traveling downwardly to shaft bottom, melts voluntarily under the hot environment in shaft bottom.This release device need not cut off cable, processes
The cable unfreezing time is short, does not results in logger and falls the accident of well, can directly proceed with logging operation and take out after unfreezing
Logging cable drills through well operations, time saving and energy saving and low cost, efficiency height under carrying out.
As improvement of the present utility model, the internal diameter D1 of described plastic liner is 1.25 ~ 1.5 times of wellhead cable outside diameter d.
Both can ensure that plastic liner movement smooth and easy on cable, the overall dimensions of plastic liner can have been reduced again as far as possible.
As improvement of the present utility model, described paraffin unfreezing cylinder is kept off by paraffin unfreezing sector post and paraffin unfreezing sector
Block surrounds and forms, and the central angle alpha of described paraffin unfreezing sector post cross section is more than or equal to 180 °, described paraffin unfreezing sector block
The central angle of cross section is 360 ° of-α.First wrapping in outside plastic liner by paraffin unfreezing sector post, the big half cycle of plastic liner is wrapped
Cover, by melted paraffin liquid, the internal perisporium of paraffin unfreezing sector post is bonded in plastic liner periphery, treats that paraffin liquid is the coldest
But after solidification, then paraffin unfreezing sector block is also wrapped in plastic liner periphery and is spliced into completely with paraffin unfreezing sector post
Cylinder, by melted paraffin liquid, the internal perisporium of paraffin unfreezing sector block is bonded in plastic liner periphery, and passes through
The end face in opposite directions of paraffin unfreezing sector post and paraffin unfreezing sector block is bonded in and is integrated by melted paraffin liquid.
As improvement of the present utility model, the central angle alpha of described paraffin unfreezing sector post cross section 180 ° ~ 230 ° it
Between.The bore openings making paraffin unfreezing sector post is easy to plastic liner and is embedded, and reduces again the body of paraffin unfreezing sector block
Long-pending.
As improvement of the present utility model, at the bar seam of described plastic liner, post the adhesive tape closed, and bar seam face
In the middle part of the inner peripheral wall of described paraffin unfreezing sector post.180 ° are rotated so that it is towards paraffin solution after being closed with adhesive tape by bar seam
In the middle part of the inner peripheral wall of the fan-shaped post of card, the paraffin liquid melted can be avoided to leak into plastic liner inner chamber, prevent from affecting plastic liner
The smoothness slided on cable, make the plastic liner being exposed at paraffin unfreezing sector post sector notch is complete light simultaneously
Sliding tube wall, it is simple to next step paraffin unfreezing sector block bonding.
As improvement of the present utility model, 0.5 ~ 0.7 times that outer diameter D 2 is borehole diameter of described paraffin unfreezing cylinder, institute
Length L stating paraffin unfreezing cylinder is 1 ~ 2 meter.Guarantee that paraffin unfreezing cylinder has suitable deadweight, it is ensured that the reliability of unfreezing.
As improvement of the present utility model, the two ends up and down of described plastic liner are respectively beyond described paraffin unfreezing cylinder
End face 40 ~ 60mm.It is possible to prevent the paraffin liquid melted to leak into the inner chamber of plastic liner from upper port.
As improvement of the present utility model, the lower section of described paraffin unfreezing cylinder connects to have and is linked as one with paraffin unfreezing cylinder
Body and up big and down small paraffin taper guide head.Up big and down small paraffin taper guide head easily facilitates under paraffin unfreezing cylinder
Sliding, can easily cross the adhesive spots of the protruding point on the borehole wall and cable and the borehole wall, make cable unfreezing relatively reliable.
As improvement of the present utility model, described paraffin taper guide head is by paraffin guide head sector post and paraffin guide head
Fan-shaped block surrounds and forms, the central angle of described paraffin guide head sector post cross section and described paraffin unfreezing sector post cross section
Central angle is equal and same phase, the central angle of described paraffin guide head sector block cross section keeps off with described paraffin unfreezing sector
The central angle of block cross section is equal and same phase.Paraffin guide head sector post have with paraffin unfreezing sector post as angular aperture
Degree and phase place, it is simple to snap in plastic liner and be easy to the surrounding with bonding of paraffin guide head sector block.
Accompanying drawing explanation
Being described in further detail this utility model with detailed description of the invention below in conjunction with the accompanying drawings, accompanying drawing only provides ginseng
Examine and use is described, being not used to limit this utility model.
Fig. 1 is the structural representation of this utility model cable the first embodiment of release device.
Fig. 2 is paraffin unfreezing sector post and the assembling relationship figure of plastic liner in Fig. 1.
Fig. 3 is the axonometric chart of paraffin unfreezing sector block in Fig. 1.
Fig. 4 is the structural representation of this utility model cable release device the second embodiment.
In figure: 1. wellhead cable；2. plastic liner；3. paraffin unfreezing cylinder；3a. paraffin unfreezing sector post；3b. paraffin solution
The fan-shaped block of card；4. paraffin taper guide head；4a. paraffin guide head sector post；4b. paraffin guide head sector block.
Detailed description of the invention
As shown in Figure 1 to Figure 3, cable release device of the present utility model includes the wellhead cable 1 connecting logger, well
The periphery of mouth cable 1 is set with plastic liner 2, and plastic liner 2 is provided with and axially extends and through bar seam, plastic liner 2
Periphery be bonded with paraffin unfreezing cylinder 3.
By bar seam, plastic liner 2 is sleeved on wellhead cable 1, then by melted paraffin liquid by paraffin unfreezing circle
Post 3 is bonded in plastic liner 2 periphery, after paraffin liquid cools and solidifies completely, puts in well by paraffin unfreezing cylinder 3, plastics
Gap between bushing pipe 2 and cable can ensure that paraffin unfreezing cylinder 3 is the most descending, and paraffin unfreezing cylinder 3 relies on gravity descending
Meet stuck point to cable, owing to the external diameter of paraffin unfreezing cylinder 3 is much larger than cable, be when stuck point crossed by paraffin unfreezing cylinder 3, will
Cable departs from the borehole wall adhered to and realizes unfreezing, and the paraffin unfreezing cylinder 3 after unfreezing continues traveling downwardly to shaft bottom, at the high temperature ring in shaft bottom
Melt voluntarily under border.This release device need not cut off cable, processes the cable unfreezing time short, does not results in logger and falls well
Accident, logging operation can be directly proceeded with after unfreezing and take out under logging cable is carried out and drill through well operations, time saving and energy saving and
Low cost, efficiency are high.
By means of the elasticity of plastic liner 2, bar seam is opened and snaps in cable, after cable snaps in, bar seam elastic return, relatively
Little seam width is conducive to keeping the integrity of bushing pipe, and the combination with paraffin unfreezing cylinder 3 is more reliable, and slides more smooth and easy.
The internal diameter D1 of plastic liner 2 is 1.25 ~ 1.5 times of wellhead cable outside diameter d.Both can ensure that plastic liner 2 was at electricity
On cable, movement is smooth and easy, can reduce again the overall dimensions of plastic liner 2 as far as possible.
Paraffin unfreezing cylinder 3 is surrounded formed by paraffin unfreezing sector post 3a and paraffin unfreezing sector block 3b, paraffin unfreezing
The central angle alpha of fan-shaped post 3a cross section is more than or equal to 180 °, and the central angle of paraffin unfreezing sector block 3b cross section is 360 ° of-α.
First wrapping in outside plastic liner 2 by paraffin unfreezing sector post 3a, the big half cycle of plastic liner 2 is wrapped by, by melted paraffin liquid
The internal perisporium of paraffin unfreezing sector post 3a is bonded in plastic liner 2 periphery, after paraffin liquid cools and solidifies completely, then by paraffin
Unfreezing sector block 3b also wraps in plastic liner 2 periphery and is spliced into complete cylinder with paraffin unfreezing sector post 3a, passes through
The internal perisporium of paraffin unfreezing sector block 3b is bonded in plastic liner 2 periphery by melted paraffin liquid, and by melted stone
The end face in opposite directions of paraffin unfreezing sector post 3a and paraffin unfreezing sector block 3b is bonded in and is integrated by wax liquid.
The central angle alpha of paraffin unfreezing sector post 3a cross section is between 180 ° ~ 230 °.Make paraffin unfreezing sector post 3a's
Bore openings is easy to plastic liner 2 and is embedded, and reduces again the volume of paraffin unfreezing sector block 3b.
Post the adhesive tape closed at the bar seam of plastic liner 2, and bar seam is towards the inner circle of paraffin unfreezing sector post 3a
In the middle part of perisporium.180 ° are rotated so that it is in the middle part of the inner peripheral wall of paraffin unfreezing sector post 3a after being closed with adhesive tape by bar seam, can
To avoid the paraffin liquid melted to leak into plastic liner 2 inner chamber, prevent from affecting the smoothness that plastic liner 2 slides on cable, with
Time to make the plastic liner 2 being exposed at paraffin unfreezing sector post 3a sector notch be the most smooth tube wall, it is simple to next step
Paraffin unfreezing sector block 3b's is bonding.
0.5 ~ 0.7 times that outer diameter D 2 is borehole diameter of paraffin unfreezing cylinder 3, length L of paraffin unfreezing cylinder 3 is 1 ~ 2
Rice.There is suitable deadweight and overall dimensions, can the most freely walk, and can easily cross at shrinkage cavity and hole deviation is sent out
The well section of changing, it is ensured that the reliability of unfreezing.
The two ends up and down of plastic liner 2 are respectively beyond the end face 40 ~ 60mm of paraffin unfreezing cylinder 3.It is possible to prevent to melt
Paraffin liquid leaks into the inner chamber of plastic liner 2 from upper port.
As shown in Figure 4, the lower section of paraffin unfreezing cylinder 3 connects has and is connected as a single entity and up big and down small with paraffin unfreezing cylinder 3
Paraffin taper guide head 4.Up big and down small paraffin taper guide head 4 easily facilitates paraffin unfreezing cylinder 3 and glides, can be light
Cross the adhesive spots of the protruding point on the borehole wall and cable and the borehole wall, make cable unfreezing relatively reliable.
Paraffin taper guide head 4 is surrounded formed by paraffin guide head sector post 4a and paraffin guide head sector block 4b, stone
The central angle of wax guide head sector post 4a cross section is equal with the central angle of paraffin unfreezing sector post 3a cross section and same phase, stone
The central angle of wax guide head sector block 4b cross section is equal with the central angle of paraffin unfreezing sector block 3b cross section and homophase
Position.Paraffin guide head sector post 4a have with paraffin unfreezing sector post 3a as opening angle and phase place, it is simple to snap in plastics
Bushing pipe 2 and be easy to the surrounding with bonding of paraffin guide head sector block 4b.
The foregoing is only the preferable possible embodiments of this utility model, non-therefore limit to patent of the present utility model
Protection domain.In addition to the implementation, this utility model can also have other embodiments.All employing equivalents or equivalence become
Change the technical scheme of formation, all fall within the protection domain of this utility model requirement.This utility model is special without the technology described
Levy and can pass through or use prior art to realize, do not repeat them here.
Claims (9)
1. a cable release device, including the wellhead cable connecting logger, it is characterised in that: outside described wellhead cable
Being set with plastic liner week, described plastic liner is provided with and axially extends and through bar seam, the periphery of described plastic liner
It is bonded with paraffin unfreezing cylinder.
Cable release device the most according to claim 1, it is characterised in that: the internal diameter D1 of described plastic liner is well head electricity
1.25 ~ 1.5 times of cable outside diameter d.
Cable release device the most according to claim 1, it is characterised in that: described paraffin unfreezing cylinder is fanned by paraffin unfreezing
Shape post and paraffin unfreezing sector block surround and form, and the central angle alpha of described paraffin unfreezing sector post cross section is more than or equal to 180 °,
The central angle of described paraffin unfreezing sector block cross section is 360 ° of-α.
Cable release device the most according to claim 3, it is characterised in that: the circle of described paraffin unfreezing sector post cross section
Heart angle α is between 180 ° ~ 230 °.
Cable release device the most according to claim 3, it is characterised in that: post it at the bar seam of described plastic liner
The adhesive tape closed, and bar seam is towards in the middle part of the inner peripheral wall of described paraffin unfreezing sector post.
Cable release device the most according to claim 1, it is characterised in that: the outer diameter D 2 of described paraffin unfreezing cylinder is well
0.5 ~ 0.7 times of eye diameter, length L of described paraffin unfreezing cylinder is 1 ~ 2 meter.
Cable release device the most according to claim 1, it is characterised in that: the two ends up and down of described plastic liner surpass respectively
Go out the end face 40 ~ 60mm of described paraffin unfreezing cylinder.
Cable release device the most according to any one of claim 1 to 7, it is characterised in that: described paraffin unfreezing cylinder
Lower section connect and have and be connected as a single entity with paraffin unfreezing cylinder and up big and down small paraffin taper guide head.
Cable release device the most according to claim 8, it is characterised in that: described paraffin taper guide head is guided by paraffin
The fan-shaped post of head and paraffin guide head sector block surround and form, and the central angle of described paraffin guide head sector post cross section is with described
The central angle of paraffin unfreezing sector post cross section is equal and same phase, the central angle of described paraffin guide head sector block cross section
And same phase equal with the central angle of described paraffin unfreezing sector block cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641857.6U CN205743800U (en) | 2016-06-27 | 2016-06-27 | A kind of cable release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641857.6U CN205743800U (en) | 2016-06-27 | 2016-06-27 | A kind of cable release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205743800U true CN205743800U (en) | 2016-11-30 |
Family
ID=57383661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620641857.6U Active CN205743800U (en) | 2016-06-27 | 2016-06-27 | A kind of cable release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205743800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927178A (en) * | 2016-06-27 | 2016-09-07 | 中石化石油工程技术服务有限公司 | Cable freeing device and freeing method |
-
2016
- 2016-06-27 CN CN201620641857.6U patent/CN205743800U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927178A (en) * | 2016-06-27 | 2016-09-07 | 中石化石油工程技术服务有限公司 | Cable freeing device and freeing method |
| CN105927178B (en) * | 2016-06-27 | 2018-07-06 | 中石化石油工程技术服务有限公司 | A kind of cable releasing method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |