CN109826581A - A method of cooperated with special tool and salvages flow controller - Google Patents
A method of cooperated with special tool and salvages flow controller Download PDFInfo
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- CN109826581A CN109826581A CN201910239051.2A CN201910239051A CN109826581A CN 109826581 A CN109826581 A CN 109826581A CN 201910239051 A CN201910239051 A CN 201910239051A CN 109826581 A CN109826581 A CN 109826581A
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- flow controller
- tool string
- spring
- bumper jar
- salvaging
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Abstract
The invention belongs to exploitation of oil-gas field technical fields, more particularly to a kind of method for being cooperated with special tool and salvaging flow controller, including carrying out drifting with conventional tool string, then decentralization fishing socket tool string combination crawl flow controller, upward jarring flow controller is realized by the cooperation of accelerator and spring bumper jar, above mentioned, it completes to salvage if it smoothly can above mention, blind hammer tool string is replaced if it cannot above mention combines downward jarring, to flow controller downlink, then the combination of replacement fishing socket tool string is salvaged until completing again.The adjustment replacement combined by accelerator with the cooperation of spring bumper jar and tool string, to realize the stuck salvaging of a variety of difficult flow controllers, operation is simpler, salvages more efficient.
Description
Technical field
The invention belongs to exploitation of oil-gas field technical fields, cooperate salvaging flow controller with special tool more particularly to a kind of
Method.
Background technique
In oil-gas mining, important component of the underground throttle device as throttling technology during oil-gas mining, but due to well
Lower situation is complicated, underground throttle device go wrong need to salvage when, often since fouling corrosion and flow controller slips damage
Etc. reasons and cause flow controller that can not salvage, this problem be also perplex oil-gas recovery enterprise a significant problem, Hao Duoqi
Industry does not all have the technology and ability that flow controller is salvaged in difficult situation also at present, often wastes because flow controller salvages problem
Plenty of time and financial resources.
Summary of the invention
The present invention provides a kind of methods for being cooperated with special tool and salvaging flow controller, solve downhole card in the prior art
The salvaging problem of dead flow controller.
Specific technical solution cooperates the method for salvaging flow controller with special tool, includes the following steps, (1) uses steel wire
Rope socket+rotary joint+weighted lever+universal joint+bumper jar+gauguste cutter tool string carries out drifting, goes to work when detecting flow controller
Tool string；
(2) decentralization fishing socket tool string combination, wire rope socket+rotary joint+weighted lever+universal joint+bumper jar+accelerator
+ spring bumper jar+fishing socket grabs flow controller；
(3) the upward jarring flow controller of spring bumper jar is used, flow controller salvaging is completed if it smoothly can above propose, if
It can not above mention, carry out next-step operation；
(4) fishing socket pin is cut, acts the tool string combination in step 2, then transfers blind hammer tool string combination, steel wire
Rope socket+universal joint+bumper jar+blind hammer, pounds hit flow controller downwards, to flow controller downlink, repeats step 2, until flow controller can be with
Completion is normally above proposed to salvage；
(5) if occur again during flow controller salvaging above mentions it is stuck can not above mention, repeatedly step (4) and step
(2) it until flow controller unfreezing, completes to salvage.
Further, current blind downward pound of hammer tool string combination hits flow controller in step (4), can not make flow controller downlink
When, act blind hammer tool string combination, replacement tool string combination increases weighted lever, under continuing between wire rope socket and universal joint
It puts to pound downwards and hits flow controller, until flow controller downlink.
Further, after the completion of step 3, if flow controller can not be mentioned above, the combination of fishing socket tool string is played out, is adjusted
The jarring dynamics of spring bumper jar or the spring bumper jar of the bigger jarring dynamics of replacement, until flow controller normally can have been mentioned above
At salvaging, step (4) operation is repeated if still can not above mention.
A kind of spring accelerator, including top connection, outer cylinder, top cap, spring, mandrel, pressure cap and lower contact；Outer cylinder top is solid
Surely top connection is connected, top cap is arranged in outer cylinder top connection lower part, top cap lower part and is screwed and connect with mandrel top；Spring pocket
It connects on mandrel, the setting of spring upper contact top cap lower part, the setting of spring lower contacts pressure cap top；Pressure cap outer edge is fixed to be connected
It connects in outer cylinder lower end, mandrel is fixedly connected after passing through in the middle part of pressure cap with lower contact.
Connector is put in the course of work on wirerope, the pressure that the spring being arranged in outer cylinder lifts upwards in outer cylinder and pressure cap
It is compressed under power and under pulling force that lower contact, mandrel, top cap are downward, when pressure is more than spring bumper jar given threshold, bullet
Spring bumper jar discharges, and the spring in spring accelerator, to make the steel wire moment tensed relaxation, spring is shaken also by abrupt release
The energy storage release in energy storage and spring accelerator in device is hit, lower ending tool is given with upward jarring force, realizes slips unfreezing.
The utility model has the advantages that it is more flexible to connect tool by the use of universal joint, pass through accelerator and spring bumper jar
With the use of to make stuck slips that can be easier to unfreezing realization by bigger upward jarring force during unfreezing and beat
Fishing, structure combination is also simpler convenient for operation, improves jarring efficiency；Slips Refloatation method through the invention can be completed
More efficient, relatively easy, the implementation easy to spread of method operation is salvaged in the salvaging of 80% or more difficult stuck slips；Spring adds
Fast device structure is simple, effective solution spring bumper jar length of stroke short technical problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spring accelerator of the present invention.
Description of symbols: 1, top connection；2, outer cylinder；3, top cap；4, spring；5, mandrel；6, pressure cap；7, lower contact.
Specific technical solution
Technical scheme mainly passes through accelerator and spring bumper jar and the combined variation of other tools uses,
In conjunction with underground fishing situation, thus it is simpler convenient to realize by different directions jarring flow controller, more efficiently
Complete the salvaging of stuck flow controller.
Embodiment 1 is completed flow controller in Soviet Union's 36-8-3 well and is salvaged.Soviet Union's 36-8-3 well construction relevant parameter, as follows, well type-
Vertical shaft；Flow controller model-RD-56 to be salvaged；Gas production tree type-standard christmas tree salvages depth 2334m, oil pipe specification 27/
8。
Soviet Union's 36-8-3 well flow controller construction note, 10 Pai Bo Lectra October in 2011 launch flow controller success, throw
Put depth 1902m；27 Pai Bo Lectra October in 2011 replaces flow controller success, launches depth 1902m；In June, 2017
Puyang on the 17th is salvaged along Kanggong department to fail, and flow controller is stuck when 1830m is salvaged to 1090m above to be mentioned.May 17 in 2018
Day, flow controller failure is salvaged by Pai Bo Lectra, and 2762m, which encounters flow controller and salvages to 2334m to meet, to be blocked and can not above mention.
According to flow controller construction account of the history analysis, tentatively judging that the well flow controller is job-hoped or is broken for slips causes to throttle
Device ontology and fracture slips piece are stuck on tubing wall, need to carry out unfreezing construction to it.
The basic principle of accelerator and spring bumper jar is in the application: catching flow controller Shi Shangti steel in fishing socket lower end
Silk when quiet pull tool compression acceleration device spring is to 400kg, is folded the unlock of folded spring locking mechanism moment in spring bumper jar, is pressed at this time
The accelerator spring abrupt release of contracting, the impact force for improving 3 times of acceleration or more to increase folded spring bumper jar reach deblocking throttling
Device purpose.
Work progress, on June 24th, 2018, Xianyang was illustrious and influential to well progress flow controller fishing, and Specific construction situation is such as
Under:
8:50 construction team reaches well site, holds pre-shift meeting, does safety education and training, arranges construction site, handles and go into operation
License.
9:35 well head installs lubricator pressure testing.
9:40 starts drifting, tool string combination (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*280mm rotation connects
Head+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+Φ 59*230mm gauguste cutter, drifting
It visits to 2423m to flow controller, slowly acts tool string.
Fishing socket under 10:30, tool string combination (from top to bottom): Φ 38*180mm wire rope socket Φ 38*280mm rotation connects
Head+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+38*1160mm accelerator+Φ 38*
1230mm spring bumper jar+Φ 38*480mm fishing socket, successfully arrests flow controller at 2423m.Use spring bumper jar jarring
No. more than 40 times flow controller does not move, then cuts fishing socket pin, acts tool string and replaces tool.
Flow controller is pounded under 12:00 under blind hammer, tool string combines (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*
The blind hammer of 1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+Φ 38*100mm.Under pound rear flow controller
2533 meters are fallen to from 2423, slowly acts tool string, continues to salvage.
Fishing socket under 13:20, tool string combine (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*280mm rotation
Connector+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+38*1160mm accelerator+Φ
38*1230mm spring bumper jar+Φ 38*480mm fishing socket, successfully arrests flow controller at 2533m, above mention wirerope still without
It is mentioned in method.Flow controller, to downslide, is had no on flow controller under the action of tool string gravity using hitting more than 50 times on spring bumper jar
Mobile, flow controller is snapped down to the fracture of 2563m fishing socket pin, acts tool string and replaces fishing socket pin.
15:30 increases spring bumper jar dynamics, continues lower fishing socket, and tool string combines (from top to bottom): Φ 38*180mm
Wire rope socket+Φ 38*280mm rotary joint+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm shake
Device+38*1160mm accelerator+Φ 38*1230mm spring bumper jar+Φ 38*480mm fishing socket is hit, is successfully arrested at 2563m
Flow controller is saved, multiple flow controller success unfreezing is above hit.And flow controller is above slowly mentioned to well head.Flow controller is salvaged successfully.17:00 is received
Construction tool is picked up, construction site is restored.Construction terminates.
Flow controller salvage come after it can be seen that, flow controller slips job-hopping, inside flower box cupling it is severely deformed, here it is cause
The well flow controller salvages difficult reason.
Embodiment 2,36-22-16H1 well construction correlation basic parameter of reviving: well type-vertical shaft；Flow controller model-to be salvaged
Y255-70B；Gas production tree type-standard christmas tree salvages depth 1280m, oil pipe specification 3 1/2.
Construction Gereral Situation over the years: on January 10th, 2017, the happy Puyang Y255-70B of launching in Shaanxi Huifeng is along the success of health flow controller；
On January 11st, 2017, Shaanxi Huifeng is happy to salvage flow controller failure, and former flow controller falls, and visits to 3025 meters and fails to visit to flow controller,
Tool string test resistance is big, and tool string out could be played by above mentioning tension 200KG or more, fail constructing, and directly launches new section
Device is flowed to 1454 meters, there are 2 flow controllers in pit shaft.Flow controller failure is salvaged along health on January 23rd, 2018, Puyang, and 1790 meters are grabbed
Firmly flow controller jarring flow controller is walked upwards, is above mentioned to 640 meters and being hampered, and is above mentioned to 180KG or so, and steel wire breaks de- from rope socket, is received
Pick up tool.January 28 fishing tool conspire to create function after, catch flow controller at 650 meters, until 550 meters above mention chance card, make repeated attempts nothing
Fruit is abandoned constructing because the time is later, salvages failure；Flow controller failure, flow controller card are salvaged in Beijing on April 16th, 2018
It can not be salvaged at 1280 meters.
Use Refloatation method fishing process of the present invention:
9:30 reaches well site, holds pre-shift meeting, does safety education and training, arranges construction site, handles the license that goes into operation.
10:10 shaft mouth anti-blowout pipe pressure testing.
10:20 starts drifting, and tool string combines (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*280mm rotation
Connector+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+Φ 59*230mm gauguste cutter leads to
Well is visited to 243m to flow controller, slowly acts tool string.
Fishing socket under 10:50, tool string combine (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*280mm rotation
Connector+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+38*1160mm accelerator+Φ
38*1230mm spring bumper jar+Φ 38*480mm fishing socket, successfully arrests flow controller at 243m.Time throttling more than upward jarring
Device does not move, cuts fishing socket pin, acts tool string and replaces tool.
Flow controller is pounded under 12:40 under blind hammer, tool string combines (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*
The blind hammer of 1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+Φ 38*100mm.Under pound rear flow controller
253 meters are fallen to from 243, slowly acts tool string, replaces fishing socket.
Fishing socket under 13:50, tool string combine (from top to bottom): Φ 38*180mm wire rope socket+Φ 38*280mm rotation
Connector+Φ 38*1200mm weighted lever+Φ 38*300mm universal joint+Φ 38*1560mm bumper jar+38*1160mm accelerator+Φ
38*1230mm spring bumper jar+Φ 38*480mm fishing socket, fails to arrest flow controller in 253m.Flow controller comes downwards to always
512m, which goes out, arrests flow controller.Flow controller is stuck, above proposes motionless, the upward multiple flow controller unfreezing of jarring, each oil during above mentioning
Tube coupling hoop has serious meet to block, and each hoop needs jarring that could repeatedly pass through.
15:20 flow controller is salvaged successfully, and construction site is restored.Construction terminates.
Reap out after flow controller it has been observed that flow controller can not salvage the reason is that.It unseals pin to loosen, protrudes and block from ontology
On tubing wall, construction is caused repeatedly to fail to salvage successfully.
Connect tool by the use of universal joint more flexible, by accelerator and spring bumper jar with the use of from
And make stuck slips that can be easier to unfreezing by bigger upward jarring force during unfreezing and realize salvaging, structure group
It closes also simpler convenient for operation, raising jarring efficiency；Slips Refloatation method through the invention can complete 80% or more and doubt
More efficient, relatively easy, the implementation easy to spread of method operation is salvaged in the salvaging of difficult stuck slips.
As shown in Figure 1, the invention further relates to a kind of spring accelerator, including top connection 1, outer cylinder 2, top cap 3, spring 4, core
Axis 5, pressure cap 6 and lower contact 7；2 top of outer cylinder is fixedly connected with top connection 1, and top cap 3 is arranged in 2 inside top connection of outer cylinder, 1 lower part,
3 lower part of top cap is screwed with 5 top of mandrel and connect；Spring 4 is socketed on mandrel 5, and 4 upper contact top cap of spring, 3 lower part is set
It sets, the setting of 4 lower contacts pressure cap of spring, 6 top；6 outer edge of pressure cap is fixedly connected on 2 lower end of outer cylinder, and mandrel 5 passes through in pressure cap 6
It is fixedly connected behind portion with lower contact 7.To realize that steel wire above mentions, spring 4 is compressed upwards by outer cylinder 2 and pressure cap 6, and lower contact
7, mandrel 5, top cap 3 can give 4 one downward power of spring under the action of lower springs bumper jar, and spring 4 is realized in cooperation
Compression.
Connector 1 is put in the course of work on wirerope, it is in outer cylinder 2 and pressure cap 6 upward that spring 4 in outer cylinder 2 is set
It is compressed under pressure and under pulling force that lower contact 7, mandrel 5, top cap 3 are downward, when pressure is more than spring bumper jar given threshold
When, spring bumper jar discharges, and the spring 4 in spring accelerator is also by abrupt release, thus make the steel wire moment tensed relaxation, it will
Energy storage release in energy storage and spring accelerator in spring bumper jar gives lower ending tool with upward jarring force, realizes card
Disintegrate card.
Claims (4)
1. a kind of cooperate the method for salvaging flow controller with special tool, it is characterised in that: include the following steps,
(1) drifting is carried out using wire rope socket+rotary joint+weighted lever+universal joint+bumper jar+gauguste cutter tool string, works as detection
Act tool string to flow controller；
(2) decentralization fishing socket tool string combination, wire rope socket+rotary joint+weighted lever+universal joint+bumper jar+accelerator+bullet
Spring bumper jar+fishing socket grabs flow controller；
(3) the upward jarring flow controller of spring bumper jar is used, flow controller salvaging is completed if it smoothly can above propose, if can not
It above mentions, carries out next-step operation；
(4) fishing socket pin is cut, acts the tool string combination in step 2, then transfers blind hammer tool string combination, wire rope socket
+ universal joint+bumper jar+blind hammer, pounds hit flow controller downwards, to flow controller downlink, step 2 is repeated, until flow controller can be normal
Completion is above proposed to salvage；
(5) if occur again during flow controller salvaging above mentions it is stuck can not above mention, repeatedly step (4) and step (2) be directly
To flow controller unfreezing, complete to salvage.
2. according to claim 1 cooperate the method for salvaging flow controller with special tool, it is characterised in that: in step (4)
Current blind hammer tool string combination, which is pounded downwards, hits flow controller, when can not make flow controller downlink, acts blind hammer tool string combination, replaces work
Tool string combination, increases weighted lever between wire rope socket and universal joint, continues to transfer, pound hit flow controller downwards, until flow controller
Downlink.
3. according to claim 1 cooperate the method for salvaging flow controller with special tool, it is characterised in that: complete in step 3
Cheng Hou plays out the combination of fishing socket tool string, the jarring dynamics of adjustment spring bumper jar or more if flow controller can not be mentioned above
The spring bumper jar for changing bigger jarring dynamics is salvaged until flow controller normally can above propose completion, if still can not above mention again
Repeat step (4) operation.
4. a kind of spring accelerator, it is characterised in that: including top connection, outer cylinder, top cap, spring, mandrel, pressure cap and lower contact；
Outer cylinder top is fixedly connected with top connection, and top connection lower part is arranged on the inside of outer cylinder in top cap, and top cap lower part and mandrel top screw thread are solid
Fixed connection；Spring is socketed on mandrel, the setting of spring upper contact top cap lower part, the setting of spring lower contacts pressure cap top；Pressure
Cap outer edge is fixedly connected on outer cylinder lower end, and mandrel is fixedly connected after passing through in the middle part of pressure cap with lower contact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910239051.2A CN109826581A (en) | 2019-03-27 | 2019-03-27 | A method of cooperated with special tool and salvages flow controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910239051.2A CN109826581A (en) | 2019-03-27 | 2019-03-27 | A method of cooperated with special tool and salvages flow controller |
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Citations (5)
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|---|---|---|---|---|
| US6109373A (en) * | 1998-11-03 | 2000-08-29 | Boart Longyear International Holdings, Inc. | Cable overshot apparatus |
| CN201778712U (en) * | 2010-04-30 | 2011-03-30 | 中国石油天然气股份有限公司 | Special fishing tool for slip type underground throttler |
| CN103527128A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Fishing tool for natural gas exploitation underground throttler and operation method thereof |
| US20170191329A1 (en) * | 2016-01-04 | 2017-07-06 | Jason Swinford | Drilling jar |
| CN207315282U (en) * | 2017-10-25 | 2018-05-04 | 中国石油集团渤海钻探工程有限公司 | A kind of underground restrictor fishing tool |
-
2019
- 2019-03-27 CN CN201910239051.2A patent/CN109826581A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6109373A (en) * | 1998-11-03 | 2000-08-29 | Boart Longyear International Holdings, Inc. | Cable overshot apparatus |
| CN201778712U (en) * | 2010-04-30 | 2011-03-30 | 中国石油天然气股份有限公司 | Special fishing tool for slip type underground throttler |
| CN103527128A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Fishing tool for natural gas exploitation underground throttler and operation method thereof |
| US20170191329A1 (en) * | 2016-01-04 | 2017-07-06 | Jason Swinford | Drilling jar |
| CN207315282U (en) * | 2017-10-25 | 2018-05-04 | 中国石油集团渤海钻探工程有限公司 | A kind of underground restrictor fishing tool |
Non-Patent Citations (3)
| Title |
|---|
| 中国石油物资装备总公司、江汉机械研究所编: "《连续油管作业技术文集》", 31 January 1998, 北京石油工业出版社 * |
| 董贤勇: "《连续油管基础理论及应用技术》", 31 May 2009, 中国石油大学出版社 * |
| 黄桢 等: "《川渝地区页岩气水平井钻完井技术》", 30 September 2018, 重庆大学出版社 * |
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Application publication date: 20190531 |