CN108086939A - Y-TOOL bypasses blanking plug - Google Patents
Y-TOOL bypasses blanking plug Download PDFInfo
- Publication number
- CN108086939A CN108086939A CN201711308635.8A CN201711308635A CN108086939A CN 108086939 A CN108086939 A CN 108086939A CN 201711308635 A CN201711308635 A CN 201711308635A CN 108086939 A CN108086939 A CN 108086939A
- Authority
- CN
- China
- Prior art keywords
- nipple
- skeleton pipe
- pipe nipple
- tool
- skeleton
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The invention discloses a kind of Y TOOL to bypass blanking plug,Including taper leather cup,It is inserted into location sealing,Nipple,Skeleton pipe nipple,Connect swivel nut,Extension nipple and O-ring seal,Nipple is connected with the threaded one end of skeleton pipe nipple,The other end of skeleton pipe nipple is connected by connecting the threaded one end of swivel nut and extension nipple,The other end of extension nipple is connected with being inserted into the threaded one end of location sealing,The other end of insertion location sealing is inserted into the seating nipple being connected with the Single port of Y TOOL,Taper leather cup is located on skeleton pipe nipple and in the oil pipe connected with the another port of Y TOOL,The annular space between skeleton pipe nipple and oil pipe to be closed,Skeleton pipe nipple,Extension nipple and insertion location sealing are all tubular structures,Skeleton pipe nipple,A kill-job passage is formd in extension nipple and insertion location sealing.The present invention can reduce security risk but also reduce operating cost.
Description
Technical field
The present invention relates to petrochemical industries, are specifically a kind of Y-TOOL bypass blanking plug.
Background technology
At present, after before the completion again for domestic marine electric pump producing well or well workover circulation canal being needed to carry out kill-job operation
It can carry out the operation of next step.Circulation canal generally for the flow string with sliding sleeve is production tree kill-job flutter valve, oil
Pipe, sliding sleeve, oil jacket annular space, oil pipe four-way, the depth capacity of kill-job Xun Huan is the depth of sliding sleeve, another to deflate for carrying
Valve, reserved crowded anticoagulant passage and cancel the circulation canal of the flow string of electric pump ball-and-seat for production tree kill-job flutter valve, oil pipe,
Electric pump suction inlet, oil jacket annular space, vent valve, oil jacket annular space, oil pipe four-way, the depth capacity of kill-job Xun Huan is electric pump suction inlet
Depth, the maximum length of tubing string cannot be all fully utilized as kill-job passage in both modes, thus opposite to improve kill-job
The proportion of liquid could complete kill-job, thus bring two problems：
1. safety problem.Cause the ratio that hyperbaric well killing fluid depth accounts for entire pit shaft small since kill-job passage is shallow, Er Qiewei
In the top of pit shaft, since swabbing action easily triggers induced flow during lift pipe string, so as to generate security risk.Secondly on
The hyperbaric well killing fluid in portion can sink with the extension of time, and proportion can be reduced after being mixed with low-gravity liquid in pit shaft,
Imbalance of pressure is caused to generate well kick, the risk of blowout.
2. cost issues.Hyperbaric well killing fluid is needed more using kill-job material, and avoids oil gas to greatest extent
The pollution of reservoir needs, using the relatively expensive kill-job material of price, thus to accordingly increase Master Cost, cause operation into
Originally increase.
At present, marine electric pump producing well needs the oil well for carrying out kill-job operation opposite before completion again or workover treatment is carried out
More, there are some potential safety problemss and operating cost due to kill-job circulation canal is shallow to increase.
The content of the invention
In order to overcome above-mentioned deficiency, it is an object of the invention to provide a kind of length that can make full use of flow string to make
Kill-job circulation canal depth maximizes, to reach by the Y-TOOL for the double effects for not only reducing security risk but also reducing operating cost
Logical blanking plug.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
Y-TOOL bypass blanking plug, including taper leather cup, insertion location sealing, nipple, skeleton pipe nipple, connection swivel nut, plus
Long pipe nipple and O-ring seal, the nipple are connected with the threaded one end of skeleton pipe nipple, and the other end of skeleton pipe nipple passes through company
The threaded one end for connecing swivel nut and extension nipple connects, and the other end of extension nipple is connected with being inserted into the threaded one end of location sealing,
The other end of insertion location sealing is inserted into the seating nipple being connected with the Single port of Y-TOOL, and it is fixed that O-ring seal is located at insertion
Between position sealing and seating nipple, the taper leather cup is located on skeleton pipe nipple and positioned at the oil connected with the another port of Y-TOOL
Guan Zhong, the annular space between skeleton pipe nipple and oil pipe to be closed, the bypass passageways of the Y-TOOL being connected with electric pump respectively with oil
Pipe is not connected with seating nipple, and the skeleton pipe nipple, extension nipple and insertion location sealing are all tubular structures, and skeleton pipe nipple adds
A kill-job passage is formd in long pipe nipple and insertion location sealing.
It should be noted that the Y-TOOL, is a kind of appellation general in field of petroleum exploitation, TOOL here refers to
Be exactly three-way connection, Y-TOOL is exactly skew T, and concrete structure is a straight tube, and the both ends of straight tube are connecting pin, in straight tube
Tube wall on connected a bypass pipe, in oil exploration equipment manufacture field, one lifts Y-TOOL, is all very familiar with, non-normal open
With, but " skew T " this component names are seldom used, therefore " Y-TOOL " this component names are also retained in patent name.
Further, retainer ring and fixing sleeve are further included, one section of tube wall of the skeleton pipe nipple thickeies, in skeleton pipe nipple
Outer surface forms a step, and retainer ring is interspersed on skeleton pipe nipple and is supported at step, and the taper leather cup is interspersed in bone
The periphery of frame pipe nipple is simultaneously located on retainer ring, and fixing sleeve is sleeved on skeleton pipe nipple holds out against fixation, the taper by taper leather cup
Leather cup, retainer ring and fixing sleeve form a seal assembly.
Further, the seal assembly is equipped with more than two, in two neighboring seal assembly, in seal assembly above
Retainer ring be supported on the fixing sleeve in following seal assembly, the nipple is by consolidating in uppermost seal assembly
Fixed set holds out against fixation.
Further, the O-ring seal is equipped with two or more.
The beneficial effects of the present invention are：
Due to this patent bypass each component of blanking plug be connected through a screw thread can with disassembly and assembly, scene according to actual conditions into
Row combination, ensures being smoothed out for operation；
Since skeleton pipe nipple, extension nipple and insertion location sealing are all tubular structures, skeleton pipe nipple, extension nipple and insertion are fixed
A kill-job passage is formd in the sealing of position, can make full use of the length of flow string maximizes kill-job circulation canal depth,
To reach the double effects for not only reducing security risk but also reducing operating cost；
Due to the use of more than two O-ring seals, sealing effect is substantially increased；
Due to the shape using taper leather cup, the reliability of sealing is improved under pressure, and can be according to pressure-resistant rank
The quantity of taper leather cup is selected, raising bypass blanking plug is pressure-resistant and leakproofness；
Insertion location sealing can be installed in place in advance, not influence the normal work of other process, save the peace of blanking plug
The activity duration is filled, after use without fishing, rises out, is convenient to use together with flow string；
Since one section of tube wall of skeleton pipe nipple thickeies, intensity height is improved, can be shaken when decentralization is not in place using steel wire operation
Hitting makes it be sent into place, without damaging blanking plug.
Description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural diagram of the present invention.
In figure：1st, nipple；2nd, skeleton pipe nipple；3rd, fixing sleeve；4th, taper leather cup；5th, retainer ring；6th, swivel nut is connected；
7th, extension nipple；8th, it is inserted into location sealing；9th, O-ring seal；10th, kill-job passage；11st, step；A、Y-TOOL；B, seating nipple；
C, oil pipe；D, the bypass passageways for the Y-TOOL being connected with electric pump.
Specific embodiment
As shown in Figure 1, Y-TOOL bypasses blanking plug, including nipple 1, skeleton pipe nipple 2, fixing sleeve 3, taper leather cup
4th, retainer ring 5, connection swivel nut 6, extension nipple 7, insertion location sealing 8 and O-ring seal 9, the O-ring seal 9 are equipped with two
More than a.The nipple 1 is connected with the threaded one end of skeleton pipe nipple 2, and the other end of skeleton pipe nipple 2 is by connecting swivel nut 6
It is connected with the threaded one end of extension nipple 7, the other end of extension nipple 7 is connected with being inserted into the threaded one end of location sealing 8, is inserted into
The other end of location sealing 8 is inserted into the seating nipple B being connected with the Single port of Y-TOOL A, and it is fixed that O-ring seal 9 is located at insertion
Between 8 and seating nipple B of position sealing, the taper leather cup 4 is located on skeleton pipe nipple 2 and is located at and connected with the another port of Y-TOOL
Oil pipe C in, to by between skeleton pipe nipple 2 and oil pipe C annular space close, the bypass passageways D for the Y-TOOL being connected with electric pump
It is not connected with oil pipe C and seating nipple B respectively, the skeleton pipe nipple 2, extension nipple 7 and insertion location sealing 8 are all tubulose knots
Structure, skeleton pipe nipple 2, extension nipple 7 and insertion location sealing 8 in form a kill-job passage 10.The one of the skeleton pipe nipple 2
Duan Guanbi thickeies, and forms a step 11 in the outer surface of skeleton pipe nipple 2, retainer ring 5 is interspersed on skeleton pipe nipple 2 and is supported on
At step 11, the taper leather cup 4 is interspersed in the periphery of skeleton pipe nipple 2 and is located on retainer ring 5, and fixing sleeve 3 is sleeved on skeleton
Taper leather cup 4 is held out against into fixation on pipe nipple 2, the taper leather cup 4, retainer ring 5 and fixing sleeve 3 form a seal assembly.
Further, there are two the seal assembly is set, in two neighboring seal assembly, holding in seal assembly above
Filler ring is supported on the fixing sleeve in following seal assembly, and the nipple 1 is by the fixation in uppermost seal assembly
Set holds out against fixation.
The characteristics of this patent:Design structure of the present invention is simple, is easily worked, at low cost, and may be reused, and carries
High utilization rate.Instrument has independent inner passage, and normal circulation is not interfered with when closing Y-TOOL electric pump bypass passageways
Passage.The present invention can increase the depth of kill-job circulation canal in the case of without using other equipment instrument, reduce well killing fluid
Proportion improve operation safety and expense, be not take up uphole time can in advance or independent cross-operation, save the activity duration carry
High operation timeliness.The technology by close Y-TOOL electric pumps lead to by-pass increase cycle kill-job passage length, reduce safety wind
The cost of use of material is reduced while dangerous, it is more notable and important particularly with the higher well advantage of reservoir pressure coefficient.
Claims (4)
1. a kind of Y-TOOL bypasses blanking plug, it is characterised in that：Including taper leather cup, insertion location sealing, nipple, skeleton
Pipe nipple, connection swivel nut, extension nipple and O-ring seal, the nipple are connected with the threaded one end of skeleton pipe nipple, and skeleton is short
The other end of section is connected by connecting the threaded one end of swivel nut and extension nipple, the other end and the insertion location sealing of extension nipple
Threaded one end connection, the other end for being inserted into location sealing is inserted into the seating nipple being connected with the Single port of Y-TOOL, O-shaped close
Seal is located between insertion location sealing and seating nipple, and the taper leather cup is located on skeleton pipe nipple and positioned at another with Y-TOOL
In the oil pipe of Single port connection, the annular space between skeleton pipe nipple and oil pipe to be closed, the side for the Y-TOOL being connected with electric pump
Circulation passage does not connect respectively with oil pipe and seating nipple, and the skeleton pipe nipple, extension nipple and insertion location sealing are all tubulose knots
Structure, skeleton pipe nipple, extension nipple and insertion location sealing in form a kill-job passage.
2. Y-TOOL according to claim 1 bypasses blanking plug, it is characterised in that：Retainer ring and fixing sleeve are further included, institute
One section of tube wall for stating skeleton pipe nipple thickeies, and forms a step in the outer surface of skeleton pipe nipple, retainer ring is interspersed in skeleton pipe nipple
It goes up and is supported at step, the taper leather cup is interspersed in the periphery of skeleton pipe nipple and is located on retainer ring, and fixing sleeve is sleeved on
Taper leather cup is held out against into fixation on skeleton pipe nipple, the taper leather cup, retainer ring and fixing sleeve form a seal assembly.
3. Y-TOOL according to claim 2 bypasses blanking plug, it is characterised in that：The seal assembly set there are two with
On, in two neighboring seal assembly, the retainer ring in seal assembly above is supported on the fixing sleeve in following seal assembly
On, the fixing sleeve in uppermost seal assembly is held out against fixation by the nipple.
4. Y-TOOL according to claim 1 bypasses blanking plug, it is characterised in that：The O-ring seal set there are two with
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308635.8A CN108086939B (en) | 2017-12-11 | 2017-12-11 | Inclined three-way bypass blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308635.8A CN108086939B (en) | 2017-12-11 | 2017-12-11 | Inclined three-way bypass blanking plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108086939A true CN108086939A (en) | 2018-05-29 |
| CN108086939B CN108086939B (en) | 2020-09-01 |
Family
ID=62174833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308635.8A Active CN108086939B (en) | 2017-12-11 | 2017-12-11 | Inclined three-way bypass blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086939B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857934U (en) * | 2010-11-11 | 2011-06-08 | 中国石油天然气集团公司 | Special sealing intubation tube for sealing packer |
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN205189810U (en) * | 2015-12-10 | 2016-04-27 | 天津克睿特维科技发展有限公司 | Wellhead sealing device |
| GB2518683B (en) * | 2013-09-30 | 2016-08-10 | Swellfix Bv | Sealing Insert and method |
-
2017
- 2017-12-11 CN CN201711308635.8A patent/CN108086939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857934U (en) * | 2010-11-11 | 2011-06-08 | 中国石油天然气集团公司 | Special sealing intubation tube for sealing packer |
| GB2518683B (en) * | 2013-09-30 | 2016-08-10 | Swellfix Bv | Sealing Insert and method |
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN205189810U (en) * | 2015-12-10 | 2016-04-27 | 天津克睿特维科技发展有限公司 | Wellhead sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108086939B (en) | 2020-09-01 |
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