CN207377529U - A kind of continuous oil pipe operation change rail fishing socket - Google Patents
A kind of continuous oil pipe operation change rail fishing socket Download PDFInfo
- Publication number
- CN207377529U CN207377529U CN201721533247.5U CN201721533247U CN207377529U CN 207377529 U CN207377529 U CN 207377529U CN 201721533247 U CN201721533247 U CN 201721533247U CN 207377529 U CN207377529 U CN 207377529U
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- CN
- China
- Prior art keywords
- rail
- fishing socket
- oil pipe
- cylinder
- slips
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of continuous oil pipe operation change rail fishing sockets, including fishing socket body, the fishing socket body upper end is provided with top connection, lower end is provided with salvaging and draws cylinder, include change rail set and slips cylinder two parts in the cavity of fishing socket body, becoming in rail set has change rail spring, becomes rail screw and become rail track, has slips piece in slips cylinder, become among rail set and slips cylinder and run through entire fishing socket with suspension Stud connection, central ports.The utility model can realize that quick fishing obtains well oil pipe in straight well, high angle hole or horizontal well, and take oil pipe out of well head rapidly, it is ensured that pit shaft is unimpeded.
Description
Technical field
The utility model is related to industrial gas oil underground construction technical fields, specifically relate to a kind of coiled tubing
Operation change rail fishing socket.
Background technology
Coiled tubing is the tubing made by low-carbon alloy steel, if tube body is exposed to operation in high sulfur-bearing pit shaft for a long time,
Once generation hydrogen embrittlement can cause oil pipe break accident, the following oil pipe of fracture end all falls into underground, causes serious well control accident, and
And influence the follow-up formation testing well-repairing work of the well.If coiled tubing is answered in tensile stress, the periodic plasticity that dead weight is subject to generate
Become, stress cracking, perforation occurs, also results in coiled tubing fracture failure and falls well.Well oil pipe how will be fallen as early as possible successfully to salvage
Go out well head to depend on using the fishing tool to match with oil pipe.If at present general fishing socket without can unloading device, catch
There are problems that salvaging pipe string can not be played out when carrying motionless in fish head, cause more complicated underground situation, band can unloading device salvaging
Cylinder can realize carry motionless fish after discharge top of fish, rise to salvage pipe string.
For example, a kind of reversible spiral slip socket, disclosure disclosed in China Patent Publication No. CN103225485A
Day is 2013-07-31, is cycled by high pump pressure in realization well and discharges fish.But this kind of reversible fishing socket is complicated, pump note
Discharge capacity pressure has strict demand, and execute-in-place is complicated.Existing fishing socket cannot be realized repeatedly by its own special construction
Repeatedly fishing obtains fish release fish function, and is not easy to hold well oil pipe top of fish, it is impossible to efficiently salvage under well oil pipe processing well
It is unimpeded to recover pit shaft for accident.
The content of the invention
The utility model is intended to the defects of existing for the above-mentioned prior art and deficiency, provides a kind of continuous oil pipe operation
With rail fishing socket is become, the utility model can realize that quick fishing obtains well oil pipe in straight well, high angle hole or horizontal well, and will
Oil pipe takes rapidly well head out of, it is ensured that pit shaft is unimpeded.
The utility model is realized by using following technical proposals：
A kind of continuous oil pipe operation is with rail fishing socket is become, including fishing socket body, it is characterised in that：The fishing socket sheet
Body upper end is provided with top connection, and lower end is provided with salvaging and draws cylinder, includes becoming rail set and slips cylinder in the cavity of fishing socket body
Two parts, becoming in rail set has change rail spring, becomes rail screw and becomes rail track, there is slips piece in slips cylinder, becomes rail set and slips
Run through entire fishing socket with suspension Stud connection, central ports among cylinder, realize and rinse top of fish function.
The change rail screw is evenly distributed on fishing socket both sides, totally two pieces.
The slips piece is three pieces.Slips chip size can be changed according to well oil pipe outer diameter is fallen.
Cylinder is drawn in the salvaging being capable of 360 degree of rotations.
The change rail track is made of long track and short track, is become rail screw and is realized salvaging into short track or long track
Cylinder fishing obtains or discharges oil pipe.
Compared with prior art, what the utility model was reached has the beneficial effect that：
1st, the utility model can be realized in straight well, high angle hole or horizontal well salvages different size coiled tubings.
2nd, the utility model can be in the huge discharge flushing top of fish after estimating position.
3rd, the utility model above carries oil pipe by pushing so that become rail screw enter become rail track grow section or short section so as to
Commutation fishing socket is carried out, realizes and salvages and discharge underground fish.
4th, the utility model patent principle understands, is skillfully constructed, is simple in structure, is small, is efficient, is adaptable, pacifying
It is complete reliable, suitable for needles of various sizes coiled tubing or cylindrical fish, it can be widely applied to coiled tubing underground fishing operation.
Description of the drawings
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail,
In：
Fig. 1 is the utility model main structure diagram.
In figure mark for：1st, salvage and draw cylinder, 2, slips cylinder, 3, slips piece, 4, Hanging bolt, 5, become rail screw, 6, become
Rail spring, 7, become rail track, 8, become rail set, 9, top connection, 10, central ports.
Specific embodiment
During exploitation of oil-gas field, coiled tubing fracture occurs and falls well or needs to salvage other similar to junk, utilizes
Coiled tubing carrying fishing socket enters well fishing and obtains fish and play out well head rapidly, it is ensured that pit shaft is unimpeded.
The utility model is related to a kind of continuous oil pipe operation with become rail fishing socket, it is described to beat including fishing socket body
Dipper body upper end is provided with top connection 9, and lower end is provided with salvaging and draws cylinder 1, intermediate to be made of change rail set 8 and slips cylinder 2, this
The two suspension stud 4 connects, and becoming in rail set 8 has change rail screw 5, becomes rail spring 6 and become rail track 7, has in slips cylinder 2
Slips piece 3, central ports 10 run through entire fishing socket.
In the present embodiment, the top connection 9 is split structure with salvaging body, can be taken out after disassembling top connection 9
Become rail spring 6 in body, become rail track 7 and slips piece 3.
In the present embodiment, the slips piece 3 can change size according to fish size, and slips piece quantity is 3.
In the present embodiment, the change rail screw 5 is distributed in into two pieces and salvages body both sides.
In the present embodiment, the change rail track 7 is made of short track and long track, become rail screw 5 into short track or
Long track realizes that fishing socket fishing obtains or discharges oil pipe.
In the present embodiment, cylinder 1 is drawn in the salvaging can be with 360 ° of rotations.
In the present embodiment, the central ports 10 run through entire fishing socket, realize and rinse top of fish function.
Claims (5)
1. a kind of continuous oil pipe operation is with rail fishing socket is become, including fishing socket body, it is characterised in that：The fishing socket body
Upper end is provided with top connection（9）, lower end is provided with salvaging and draws cylinder（1）, the cavity of fishing socket body is interior to be included becoming rail set（8）And card
Watt cylinder (2) two parts become rail set（8）Inside have and become rail spring（6）, become rail screw（5）With change rail track（7）, slips cylinder (2)
Inside there is slips piece（3）, become rail set（8）Stud connection, central ports are hung with being used among slips cylinder (2)（10）Through entirely beating
Dipper.
2. a kind of continuous oil pipe operation according to claim 1 change rail fishing socket, it is characterised in that：The change rail spiral shell
Nail（5）Fishing socket both sides are evenly distributed on, totally two pieces.
3. a kind of continuous oil pipe operation according to claim 1 change rail fishing socket, it is characterised in that：The slips piece
（3）For three pieces.
4. a kind of continuous oil pipe operation according to claim 1 change rail fishing socket, it is characterised in that：The salvaging is drawn
Cylinder（1）It being capable of 360 degree of rotations.
5. a kind of continuous oil pipe operation according to claim 1 change rail fishing socket, it is characterised in that：The change rail rail
Road（7）It is made of long track and short track, becomes rail screw（5）Into short track or long track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721533247.5U CN207377529U (en) | 2017-11-16 | 2017-11-16 | A kind of continuous oil pipe operation change rail fishing socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721533247.5U CN207377529U (en) | 2017-11-16 | 2017-11-16 | A kind of continuous oil pipe operation change rail fishing socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207377529U true CN207377529U (en) | 2018-05-18 |
Family
ID=62333251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721533247.5U Active CN207377529U (en) | 2017-11-16 | 2017-11-16 | A kind of continuous oil pipe operation change rail fishing socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207377529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644941A (en) * | 2019-10-12 | 2020-01-03 | 中国石油天然气集团有限公司 | Coiled tubing rotary introduction fisher and coiled tubing rotary introduction fishing method |
-
2017
- 2017-11-16 CN CN201721533247.5U patent/CN207377529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644941A (en) * | 2019-10-12 | 2020-01-03 | 中国石油天然气集团有限公司 | Coiled tubing rotary introduction fisher and coiled tubing rotary introduction fishing method |
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| GR01 | Patent grant |