CN104975824B - The oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well - Google Patents
The oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well Download PDFInfo
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- CN104975824B CN104975824B CN201510387019.0A CN201510387019A CN104975824B CN 104975824 B CN104975824 B CN 104975824B CN 201510387019 A CN201510387019 A CN 201510387019A CN 104975824 B CN104975824 B CN 104975824B
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- tubing
- oil
- oil pipe
- pipe
- minor diameter
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Abstract
The present invention is the oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well, in the casing leakage well for the problems such as can be used for part long well section, water layer containing high pressure, leak source imbedibility extreme difference.The present invention is to be sealed between sleeve pipe and oil pipe above the following oil reservoir of sleeve pipe leak source using packer card, is recovered the oil or using hollow rod installation rod-type oil-well pump using minor diameter tubing installation minor diameter tubing pump in oil pipe.The present invention is using oil pipe and the minor diameter tubing dual tubing oil recovery tubing string that either oil pipe and hollow rod are formed, the set damage of the problems such as using minor diameter tubing either hollow rod as fluid course, the effectively long well section of the improvement small no bad break of casing diameter variable, water layer containing high pressure, leak source imbedibility extreme difference, set blind hole.Administration way is simple, and input cost is low, and the term of validity is long, does not easily cause heavy repair task, can solve the set leakage problem of random length.Most of casing leakage well yield, remarkable in economical benefits can be recovered.
Description
Technical field
The present invention is the down-hole oil production tubing string of petroleum industry producing well, the oil production method of particularly a kind of casing leakage well and
Its dual tubing oil recovery tubing string.The present invention can be used for the sleeve pipe of the problems such as part long well section, water layer containing high pressure, leak source imbedibility extreme difference
In absorption well, make to recover oil well output in production process of the above-mentioned oil well after completion, slow down the rising of oil well comprehensive water cut.
Background technology
The oil-gas field development middle and later periods, set damage, set leakage situation are on the rise as caused by a variety of causes, cause well water to increase
High, production decline, the serious sustainable and stable development for restricting old filed.There is half or so in set damage, set blind hole for oil pumping according to statistics
Well, and all increasing every year.
Conventional improvement set damage, the technology of set leakage or means have following several at present：
1st, packer band tubing string card leakage technique：It is simple to operate, expense is low, but the term of validity is short, and leak source shakes out, and easily causes big
Repair, carry on as before and recovered the oil using former well oil pipe, can not well-flushing, survey liquid level because card leaks；
2nd, casing salvaging：It is not suitable with long well section and is corresponding with the operation of high pressure water layer, costly, repairing is tired again after failure
It is difficult；
3rd, small casing is cemented the well：The term of validity is grown, but duty cycle is long, costly, well depth is not easy to cement the well, after set is broken again again
Repairing is difficult；
4th, cement leak-stopping technique：Sometimes operation pressure is higher, and cement mortar is difficult to continuously squeeze into target zone, easily causes overhaul；
Leak source imbedibility extreme difference, Yue ≤0.1m3/ min, conventional blocking agent can not squeeze into leak source position.
The difficult point occurred in governance process is leaked in set for more than, conventional meanses can not meet to administer to be required, therefore, is ground
Make it is a kind of it is simple to operate, expense is low, the term of validity is long, the improvement set leakage that is not easy to turn overhaul, casing damaged well flow string very
It is necessary.
The content of the invention
The purpose of the present invention is the difficult point for overcoming conventional meanses to administer set blind hole, there is provided a kind of oil recovery side of casing leakage well
Method and its dual tubing oil recovery tubing string, recover the oil in casing leakage well, can be widely used in small casing diameter variable, set without bad break damage,
Cover in blind hole, solve the difficulty that casing leakage is brought to production, recover the production of set blind hole, increase economic efficiency.
The present invention technical solution be：
A kind of oil production method of casing leakage well, used between the sleeve pipe and oil pipe above the following oil reservoir of sleeve pipe leak source
Packer card seals, and is recovered the oil or using hollow rod installation rod-type using minor diameter tubing installation minor diameter tubing pump in oil pipe
Oil-well pump.
Include oil pipe and oil well pump, packer set for a kind of dual tubing oil recovery tubing string of the oil production method of casing leakage well
Between oil pipe and sleeve pipe, above the oil reservoir below sleeve pipe leak source, tripping in minor diameter tubing and minor diameter tubular type in oil pipe
Pump, oil pipe are suspended on well head by lower tubing head, and minor diameter tubing is connected with the pump barrel of minor diameter tubing pump and by upper oil pipe
Head suspension is in well head.
Include oil pipe and oil well pump, packer set for a kind of dual tubing oil recovery tubing string of the oil production method of casing leakage well
Between oil pipe and sleeve pipe, above the oil reservoir below sleeve pipe leak source, tripping in hollow rod and rod-type pumping unit in oil pipe,
The support set of rod-type pumping unit is fixed on oil pipe, and hollow rod is as fluid course.
The present invention has following significant effect：The present invention is using oil pipe and minor diameter tubing either oil pipe and hollow takes out
The dual tubing oil recovery tubing string that beam hanger is formed, using minor diameter tubing either hollow rod as fluid course, effectively administer set
The set damage of the problems such as long well section of the small no bad break of pipe reducing, water layer containing high pressure, leak source imbedibility extreme difference, set blind hole.The present invention's
Oil pipe is suspended on well head by embodiment one by lower tubing head, and minor diameter tubing is connected and led to the pump barrel of minor diameter tubing pump
Cross tubing head and be suspended on well head.Well-flushing can be realized and survey the operation of liquid level, packer no longer influenceed by alternate load and
Failure, card envelope effect is good, the term of validity is longer.Using in hollow rod tripping in oil pipe, it constructs simple embodiments of the invention two
Single, input cost is low.If hollow rod proposed, clean-out service can also be implemented.The support set of rod-type pumping unit can also
Enough it is fixed on the oil pipe below packer, longer using the term of validity if support set is fixed on the lower section of packer, cutting ferrule leakage
Effect it is more preferable, even if above packer oil pipe leakage, can also recover the oil.Reliable working performance of the present invention, administration way letter
Single, input cost is low, and the term of validity is long, does not easily cause heavy repair task, can solve the set leakage problem of random length.It can recover big
Part tubular misses well yield, remarkable in economical benefits, has good application value.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the structural representation of the embodiment of the present invention two.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing, not limited the scope of the invention, all designs using the present invention are thought
The improvement that rood goes out belongs to the protection category of the present invention.
A kind of oil production method of casing leakage well, used between the sleeve pipe and oil pipe above the following oil reservoir of sleeve pipe leak source
Packer card seals, and is recovered the oil or using hollow rod installation rod-type using minor diameter tubing installation minor diameter tubing pump in oil pipe
Oil-well pump.
Embodiment one
Referring to Fig. 1, include oil pipe 2, packer 5 for a kind of dual tubing oil recovery tubing string of the oil production method of casing leakage well
It is enclosed between oil pipe 2 and sleeve pipe 1, above the oil reservoir below sleeve pipe leak source, tripping in minor diameter tubing 4 and small straight in oil pipe 2
Footpath tubing pump 3, oil pipe 2 are suspended on well head by lower tubing head 7, and minor diameter tubing 4 is connected simultaneously with the pump barrel of minor diameter tubing pump 3
Well head is suspended on by upper tubing head 6, it is possible to achieve well-flushing and the operation for surveying liquid level, packer 5 is no longer by the shadow of alternate load
Ring and fail, card envelope effect is good, term of validity length.The interior latus rectum of lower tubing head 7 is more than the interior latus rectum of upper tubing head 6, upper tubing head 6
It is threadedly coupled with lower tubing head 7.The diameter of oil pipe 2 is 89mm；The diameter of minor diameter tubing 4 is 60.3mm.Minor diameter tubing 4
The maximum outside diameter of tubing coupling is 70mm, and the both ends of the tubing coupling both ends and minor diameter tubing pump 3 are equipped with 45 ° of chamferings.
Embodiment two
Referring to Fig. 2, include oil pipe 2, packer 5 for a kind of dual tubing oil recovery tubing string of the oil production method of casing leakage well
It is enclosed between oil pipe 2 and sleeve pipe 1, above the oil reservoir below sleeve pipe leak source, tripping in hollow rod 8 and rod-type in oil pipe 2
Oil well pump 9, the support set of rod-type pumping unit 9 are fixed on oil pipe 2.The support set of rod-type pumping unit 9 can also be fixed on packing
Longer using the term of validity if support set is fixed on the lower section of packer 5 on the oil pipe 2 of the lower section of device 5, the effect of cutting ferrule leakage is more
It is good, even if the oil pipe 2 of the top of packer 5 is missed, can also recover the oil.The diameter of hollow rod 8 is 36mm；The diameter of oil pipe 2
It is 89mm, hollow rod 8 is used as fluid course.
Claims (4)
1. a kind of dual tubing oil recovery tubing string of casing leakage well, including oil pipe（2）, it is characterized in that, on the following oil reservoir of sleeve pipe leak source
The sleeve pipe of side（1）With oil pipe（2）Between use packer（5）Card envelope, oil pipe（2）It is interior that minor diameter pipe is installed using minor diameter tubing
Formula pump recovers the oil；Packer（5）It is setting in oil pipe（2）With sleeve pipe（1）Between, above the oil reservoir below sleeve pipe leak source, oil pipe
（2）Middle tripping in minor diameter tubing（4）With minor diameter tubing pump（3）, oil pipe（2）Pass through lower tubing head（7）Well head is suspended on, it is small
Diameter oil pipe（4）With minor diameter tubing pump（3）Pump barrel connect and pass through upper tubing head（6）It is suspended on well head；The lower oil pipe
Head（7）Interior latus rectum be more than upper tubing head（6）Interior latus rectum, upper tubing head（6）With lower tubing head（7）Threaded connection；The oil
Pipe（2）Diameter be 89mm；Minor diameter tubing（4）Diameter be 60.3mm.
2. a kind of dual tubing oil recovery tubing string of casing leakage well according to claim 1, it is characterized in that, the minor diameter tubing
（4）The maximum outside diameter of tubing coupling be 70mm, the tubing coupling both ends and minor diameter tubing pump（3）Both ends be equipped with
45 ° of chamferings.
3. a kind of dual tubing oil recovery tubing string of casing leakage well, including oil pipe（2）, it is characterized in that, on the following oil reservoir of sleeve pipe leak source
The sleeve pipe of side（1）With oil pipe（2）Between use packer（5）Card envelope, oil pipe（2）It is interior that rod pumping is installed using hollow rod
Pump recovers the oil；Packer（5）It is setting in oil pipe（2）With sleeve pipe（1）Between, above the oil reservoir below sleeve pipe leak source, oil pipe（2）
Middle tripping in hollow rod（8）And rod-type pumping unit（9）, rod-type pumping unit（9）Support set be fixed on oil pipe（2）On；It is described
Hollow rod（8）Diameter be 36mm；Oil pipe（2）Diameter be 89mm.
4. a kind of dual tubing oil recovery tubing string of casing leakage well according to claim 3, it is characterized in that, the rod-type pumping unit
（9）Support set can also be fixed on packer（5）The oil pipe of lower section（2）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387019.0A CN104975824B (en) | 2015-07-06 | 2015-07-06 | The oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387019.0A CN104975824B (en) | 2015-07-06 | 2015-07-06 | The oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104975824A CN104975824A (en) | 2015-10-14 |
| CN104975824B true CN104975824B (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387019.0A Expired - Fee Related CN104975824B (en) | 2015-07-06 | 2015-07-06 | The oil production method and its dual tubing oil recovery tubing string of a kind of casing leakage well |
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| CN (1) | CN104975824B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113494288B (en) * | 2020-04-08 | 2023-08-22 | 中国石油天然气股份有限公司 | Oil pipe leakage finding method and well repairing method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547873Y (en) * | 2002-02-01 | 2003-04-30 | 李卫忠 | Thickened oil heat-recovery well injetion-recovery disposable tubular column |
| CN2616709Y (en) * | 2002-10-16 | 2004-05-19 | 中国石油天然气股份有限公司吉林油田分公司新大采油厂 | Dual-suction separative-production two-functional deep-well pump for pumping well |
| CN2721868Y (en) * | 2004-06-02 | 2005-08-31 | 中国石油天然气股份有限公司 | Deep-pumping tubular column for extracting oil |
| CN1648405A (en) * | 2004-12-22 | 2005-08-03 | 西南石油学院 | Injecting air boosting oil production and liquid discharging gas producing device and method |
| AR055812A1 (en) * | 2005-06-07 | 2007-09-12 | Ypf Sa | PROVISION AND METHOD OF ALTERNATIVE PUMPING WITH HOLLOW RODS WITHOUT PRODUCTION CHANNEL |
| CN2861551Y (en) * | 2005-12-19 | 2007-01-24 | 赵光奇 | Integral-tube type oil-well pump |
| CN101240792B (en) * | 2007-12-07 | 2010-06-23 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High water-containing rod pumped well oiling type double-passage eccentric wear-proof process |
| CN201835760U (en) * | 2010-07-21 | 2011-05-18 | 王祖明 | Pipe string for solving clogging of pumping well |
| CN103147729B (en) * | 2013-03-21 | 2015-07-08 | 中国石油天然气股份有限公司 | Under pump mechanical mixing medicine doping pipe column of oil well pump |
| CN203201537U (en) * | 2013-05-02 | 2013-09-18 | 中国石油天然气股份有限公司 | Minor-diameter electric-control intelligent pipe column for casing damage oil extracting well |
| CN203603847U (en) * | 2013-09-29 | 2014-05-21 | 付茜 | Tubular column combination for oil reservoir side heavy oil cold production |
| CN204225804U (en) * | 2014-11-13 | 2015-03-25 | 王海 | A kind of novel oil production well lost circulation prevention Flushing tubular column |
| CN204782945U (en) * | 2015-07-06 | 2015-11-18 | 中国石油化工股份有限公司 | Double -barrelled oil production pipe of sleeve pipe absorption well |
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| CN104975824A (en) | 2015-10-14 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Yuanping Inventor after: Jiang Shaobo Inventor after: Dong Yuanjun Inventor after: Li Shufang Inventor after: Zhang Ziyu Inventor after: Wang Changjun Inventor before: Sun Yuanping Inventor before: Zhao Yongqiang Inventor before: Li Shufang Inventor before: Zhang Ziyu Inventor before: Wang Changjun |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20200706 |