CN109441389A - A kind of dual-grip reversible coiled tubing fish fishing device - Google Patents
A kind of dual-grip reversible coiled tubing fish fishing device Download PDFInfo
- Publication number
- CN109441389A CN109441389A CN201910005719.7A CN201910005719A CN109441389A CN 109441389 A CN109441389 A CN 109441389A CN 201910005719 A CN201910005719 A CN 201910005719A CN 109441389 A CN109441389 A CN 109441389A
- Authority
- CN
- China
- Prior art keywords
- internal slip
- sheath
- nipple
- central axis
- piston
- 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.)
- Granted
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 27
- 230000002441 reversible effect Effects 0.000 title claims abstract description 14
- 210000002445 nipple Anatomy 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 241001540526 Leptonotus elevatus Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 241000935974 Paralichthys dentatus Species 0.000 description 1
- 240000005546 Piper methysticum Species 0.000 description 1
- 235000016787 Piper methysticum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of dual-grip reversible coiled tubing fish fishing device, including nipple, nipple are connected with central axis upper end, and one end of piston is equipped with nipple, and the other end is equipped with spring pocket；Piston bush is housed on the piston of nipple side, A sheath is housed on the spring pocket of piston bush side；Compressed spring A is housed between piston bush and piston, compressed spring B and spring block are housed between spring pocket and A sheath；The spring pocket other end is equipped with internal slip sliding block, and the internal slip sliding block other end is equipped with internal slip and internal slip seat；B sheath is housed, the B sheath other side is provided with impeller shaft, and the impeller shaft other end is threadedly coupled with column type junk mill on the central axis of the internal slip seat other side；Top connection is housed on the outside of nipple, the top connection other end is equipped with outer cylinder, and outer barrel has screw type slips, and the outer cylinder other end is threadedly coupled with guide shoe, the present invention guarantees the stationarity and reliability during salvaging by inside and outside two kinds of slips synergy, improves operating efficiency.
Description
Technical field
The present invention relates to underground continuous oil pipe fish fishing operation field, in particular to a kind of dual-grip reversible is continuously oily
Pipe fish fishing device.
Background technique
Coiled tubing is known as " omnipotent working rig ", in operation process, is broken the situation Shi Youfa in production string
Raw, this can not only cause job failure, influence being normally carried out for production of hydrocarbons, and will cause great warp under serious situation
Ji loss.But it is directed to coiled tubing fish operating condition, dedicated coiled tubing fish fishing tool just starts in recent years
Report.And because coiled tubing wall thickness is relatively thin, the isostructural particularity of welding bar existing for inner wall beats most of tubing strings
Vatman's skill and tool are restricted in the construction process, therefore conventional fishing tool is poorly suited for use in coiled tubing and falls
Fish is salvaged.
Summary of the invention
To overcome above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide a kind of dual-grip reversible coiled tubings
Fish fishing device, the righting of fishing tool collection, removing, flushing, the reversible fishing integrated are adaptable, and by inside and outside
Two kinds of slips synergy come guarantee salvage during stationarity and reliability, improve operating efficiency.
To achieve the goals above, the technical solution adopted by the present invention is that:
On a kind of dual-grip reversible coiled tubing fish fishing device, including nipple 1, nipple 1 and central axis 21
End is connected, and piston 4, spring pocket 8, internal slip sliding block 18, internal slip 9, internal slip seat are successively equipped on the central axis 21
17 and B sheath 10；
One end of piston 4 is equipped with nipple 1, and the other end is equipped with spring pocket 8；Piston is housed on the piston 4 of 1 side of nipple
2 are covered, A sheath 5 is housed on the spring pocket 8 of 2 side of piston bush；Compressed spring A3, spring pocket 8 are housed between piston bush 2 and piston 4
Compressed spring B6 and spring block 7 are housed between A sheath 5；8 other end of spring pocket is equipped with internal slip sliding block 18, and internal slip is sliding
18 other end of block is equipped with internal slip 9 and internal slip seat 17；
B sheath 10 is housed, 10 other side of B sheath is provided with impeller on the central axis 21 of 17 other side of internal slip seat
Axis 12,12 other end of impeller shaft are threadedly coupled with column type junk mill 14；Top connection 23 is housed, top connection 23 is another on the outside of nipple 1
End is equipped with outer cylinder 20, has screw type slips 19 inside outer cylinder 20,20 other end of outer cylinder is threadedly coupled with guide shoe 15.
The top of the impeller shaft 12 is in turbine leaf sheet.
The nipple 1 is connected through a screw thread with 21 upper end of central axis, there is pressurizing port 22 on front side of central axis 21.
The internal slip seat 17 and central axis 21 is positioned by shoulder, and there is runner 16 in 21 bottom end of central axis.
It is connected between the B sheath 10 and impeller shaft 12 by bearing group 11, central axis 21, B sheath 10, impeller shaft 12
Between have cavity.
Spiral slips 19 is housed, the wide buttless thread and inner face outside spiral slips 19 grab fishing inside the outer cylinder 20
Tooth is left hand thread, and the gap matched with outer cylinder 20 is larger, and spiral card watt 19 can be made to have certain stroke in outer cylinder 20
It can swell and reduce.
Beneficial effects of the present invention:
The tool for fishing coiled tubings of the hydraulic-driven at work, will be on the oil pipe that salvaged under tool to predetermined needs
Side, when continuing decentralization tool, guide shoe is by inclined fish righting, and impeller shaft drives column type junk mill to deformation under hydraulic-driven
Fish fish head carries out milling, so that tool can smoothly enter into inside fish.After internal slip is all introduced into inside fish,
Piston is pushed by the pressurizing port on central axis, drives internal slip sliding block that internal slip opening is close to fish inner wall.Upper
During mentioning, spiral slips on outer cylinder because the vertical section of wide buttless thread is tapered slope, slips with heavy fish to
The conelet end motion of cone, fish weight is cured kilocalorie and obtains also tightlier at this time.Interior external slips synergy improves the reliable of salvaging
Property, salvaging efficiency is so effectively increased, secondary salvaging is avoided.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is internal slip structural schematic diagram of the invention.
The position Fig. 3 spiral kava structure schematic diagram of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Dual-grip reversible coiled tubing fish fishing tool as shown in Figure 1:, mainly by nipple 1, piston 4, compression
Spring A3, compressed spring B 6, internal slip 9, impeller shaft 12, column type junk mill 14, guide shoe 15, spiral slips 19, outer cylinder 20, center
Axis 21, top connection 23 are constituted.
Nipple 1 is connected through a screw thread with 21 upper end of central axis, there is pressurizing port 22 on front side of central axis 21.On central axis 21 according to
It is secondary to be equipped with piston 4, spring pocket 8, internal slip sliding block 18, internal slip 9 (as shown in Figure 2), internal slip seat 17 and B sheath 10；
Internal slip seat 17 and central axis 21 are positioned by shoulder, and there is runner 16 in 21 bottom end of central axis.
A compressed spring 3 and piston bush 2 are housed on piston 4；
B compressed spring 6,6 other end connecting spring block 7 of B compressed spring, 6 peripheral hardware of B compressed spring are housed on spring pocket 8
It is equipped with A sheath 5.
It is connected between B sheath 10 and impeller shaft 12 by bearing group 11.12 upper end of impeller shaft is in turbine leaf sheet, impeller shaft
12 are threadedly coupled with column type junk mill 14, and central axis 21, B sheath 10 have cavity between impeller shaft 12,
Top connection 23 is housed, tool consists of inside and outside two parts, and is threadedly coupled with top connection 23 with outer cylinder 20 on the outside of nipple 1.
Spiral slips 19 is housed, the fishing tooth of grabbing of the wide buttless thread and inner face outside spiral slips 19 is left hand thread inside outer cylinder 20
(as shown in Figure 3), the gap matched with outer cylinder 20 is larger, and spiral card watt 19 can be enable to have certain stroke swollen in outer cylinder 20
Big and diminution.
20 other end of outer cylinder is threadedly coupled with guide shoe 15, and guide shoe 15 can replace different model.
The operation principle of the present invention is that:
When salvaging fish, predetermined position will be arrived under tool, that is, above fish to be salvaged.Firstly, will be inclined by guide shoe 15
Fish righting；Secondly, rotating using fluid driven impeller axis 12 with moving column type junk mill 14, milling is carried out to the fish fish head of deformation
Finishing, so that tool can enter inside fish；Finally, fluid passes through center after internal slip 9 fully enters fish inside
Pressurizing port on axis 21 pushes piston 4 and compressed spring A3, and then pushes 17 downlink of internal slip sliding block, and internal slip 9 is pushed away completely
It opens, is tightly attached to the anchor fluke tooth on internal slip 9 on the inner wall to fishing oil pipe 13, complete internal clamping process.
During above mentioning, the specific rotation direction tooth form thread in 19 inside of spiral slips in outer cylinder 20 can be by fish clamping.This
Sample is during salvaging, interior external slips synergy, so that salvaging steady reliable.When salvaging is completed to exit tool, it is only necessary to subtract
The pressure of fluid can withdraw internal slip 9 in small central axis 21, and tool is smoothly exited fish.
Claims (6)
1. a kind of dual-grip reversible coiled tubing fish fishing device, which is characterized in that including nipple (1), nipple (1)
It is connected with central axis (21) upper end, piston (4), spring pocket (8), internal slip sliding block is successively equipped on the central axis (21)
(18), internal slip (9), internal slip seat (17) and B sheath (10)；
One end of piston (4) is equipped with nipple (1), and the other end is equipped with spring pocket (8)；It is equipped on the piston (4) of 1 side of nipple
Piston bush (2) is equipped with A sheath (5) on the spring pocket (8) of piston bush (2) side；Equipped with pressure between piston bush (2) and piston (4)
Contracting spring A (3) is equipped with compressed spring B (6) and spring block (7) between spring pocket (8) and A sheath (5)；Spring pocket (8) is another
End is equipped with internal slip sliding block (18), and internal slip sliding block (18) other end is equipped with internal slip (9) and internal slip seat (17)；
B sheath (10) are housed on the central axis (21) of described internal slip seat (17) other side, B sheath (10) other side is provided with
Impeller shaft (12), impeller shaft (12) other end are threadedly coupled with column type junk mill (14)；Top connection is housed on the outside of nipple (1)
(23), top connection (23) other end is equipped with outer cylinder (20), has screw type slips (19) inside outer cylinder (20), outer cylinder (20) other end
It is threadedly coupled with guide shoe (15).
2. a kind of dual-grip reversible coiled tubing fish fishing device according to claim 1, which is characterized in that described
Impeller shaft (12) top be in turbine leaf sheet.
3. a kind of dual-grip reversible coiled tubing fish fishing device according to claim 1, which is characterized in that described
Nipple (1) be connected through a screw thread with central axis (21) upper end, have pressurizing port (22) on front side of central axis (21).
4. a kind of dual-grip reversible coiled tubing fish fishing device according to claim 1, which is characterized in that described
Internal slip seat (17) and central axis (21) by shoulder positioning, central axis (21) bottom end has runner (16).
5. a kind of dual-grip reversible coiled tubing fish fishing device according to claim 1, which is characterized in that described
B sheath (10) and impeller shaft (12) between connect by bearing group (11), central axis (21), B sheath (10), impeller shaft (12)
Between have cavity.
6. a kind of dual-grip reversible coiled tubing fish fishing device according to claim 1, which is characterized in that described
Outer cylinder (20) inside spiral slips (19) are housed, the fishing tooth of grabbing of the external wide buttless thread of spiral slips (19) and inner face is
Left hand thread, the gap matched with outer cylinder (20) is larger, and spiral card watt (19) can be made to have certain stroke in outer cylinder (20)
It can swell and reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005719.7A CN109441389B (en) | 2019-01-03 | 2019-01-03 | Double-slip retractable type continuous oil pipe fish fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005719.7A CN109441389B (en) | 2019-01-03 | 2019-01-03 | Double-slip retractable type continuous oil pipe fish fishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441389A true CN109441389A (en) | 2019-03-08 |
| CN109441389B CN109441389B (en) | 2024-02-27 |
Family
ID=65542431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005719.7A Active CN109441389B (en) | 2019-01-03 | 2019-01-03 | Double-slip retractable type continuous oil pipe fish fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441389B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984897A (en) * | 2019-11-27 | 2020-04-10 | 淮安市井神钻采机具有限公司 | Fishing spear with co-operation of inner slip and outer slip |
| CN112943143A (en) * | 2021-01-12 | 2021-06-11 | 中国石油天然气股份有限公司 | Hydraulic salvaging pipe column and salvaging method for coiled tubing of downhole choke |
| CN113107409A (en) * | 2021-05-13 | 2021-07-13 | 中煤科工集团西安研究院有限公司 | Visual guide type centralizing type drilling tool fishing device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877085A (en) * | 1988-12-27 | 1989-10-31 | Pullig Jr Joe G | Manually operated spear apparatus |
| US20040084191A1 (en) * | 2002-11-01 | 2004-05-06 | Laird Mary L. | Internal coiled tubing connector |
| CN203669809U (en) * | 2014-01-13 | 2014-06-25 | 辽河石油勘探局 | Releasing double-slip overshot |
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN104358538A (en) * | 2014-11-06 | 2015-02-18 | 长江大学 | Special fishing spear for fishing of fishes of continuous oil pipe |
| CN204532203U (en) * | 2015-04-14 | 2015-08-05 | 宝鸡石油机械有限责任公司 | A kind of coiled tubing slip-type fishing socket |
| CN204663449U (en) * | 2015-06-07 | 2015-09-23 | 荆州市赛瑞能源技术有限公司 | A kind of coiled tubing fishing socket of hydraulic pressure release |
| CN107060679A (en) * | 2017-04-25 | 2017-08-18 | 西南石油大学 | A kind of screw rod hydraulic returnable fishing tool |
| CN209308660U (en) * | 2019-01-03 | 2019-08-27 | 西安石油大学 | A kind of dual-grip reversible coiled tubing fish fishing tool |
-
2019
- 2019-01-03 CN CN201910005719.7A patent/CN109441389B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877085A (en) * | 1988-12-27 | 1989-10-31 | Pullig Jr Joe G | Manually operated spear apparatus |
| US20040084191A1 (en) * | 2002-11-01 | 2004-05-06 | Laird Mary L. | Internal coiled tubing connector |
| CN203669809U (en) * | 2014-01-13 | 2014-06-25 | 辽河石油勘探局 | Releasing double-slip overshot |
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN104358538A (en) * | 2014-11-06 | 2015-02-18 | 长江大学 | Special fishing spear for fishing of fishes of continuous oil pipe |
| CN204532203U (en) * | 2015-04-14 | 2015-08-05 | 宝鸡石油机械有限责任公司 | A kind of coiled tubing slip-type fishing socket |
| CN204663449U (en) * | 2015-06-07 | 2015-09-23 | 荆州市赛瑞能源技术有限公司 | A kind of coiled tubing fishing socket of hydraulic pressure release |
| CN107060679A (en) * | 2017-04-25 | 2017-08-18 | 西南石油大学 | A kind of screw rod hydraulic returnable fishing tool |
| CN209308660U (en) * | 2019-01-03 | 2019-08-27 | 西安石油大学 | A kind of dual-grip reversible coiled tubing fish fishing tool |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984897A (en) * | 2019-11-27 | 2020-04-10 | 淮安市井神钻采机具有限公司 | Fishing spear with co-operation of inner slip and outer slip |
| CN110984897B (en) * | 2019-11-27 | 2022-05-17 | 淮安市井神钻采机具有限公司 | Fishing spear with co-operation of inner slip and outer slip |
| CN112943143A (en) * | 2021-01-12 | 2021-06-11 | 中国石油天然气股份有限公司 | Hydraulic salvaging pipe column and salvaging method for coiled tubing of downhole choke |
| CN113107409A (en) * | 2021-05-13 | 2021-07-13 | 中煤科工集团西安研究院有限公司 | Visual guide type centralizing type drilling tool fishing device and method |
| CN113107409B (en) * | 2021-05-13 | 2022-11-15 | 中煤科工集团西安研究院有限公司 | Visual guide type centralizing type drilling tool fishing device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109441389B (en) | 2024-02-27 |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240115 Address after: 710065, No. 18, two East, electronic road, Shaanxi, Xi'an Applicant after: XI'AN SHIYOU University Applicant after: Pingliang Dongcheng Machinery Manufacturing Co.,Ltd. Address before: 710065, No. 18, two East, electronic road, Shaanxi, Xi'an Applicant before: XI'AN SHIYOU University |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |