CN105464615A - Parallel double-pipe packer for deepwater oil well - Google Patents
Parallel double-pipe packer for deepwater oil well Download PDFInfo
- Publication number
- CN105464615A CN105464615A CN201511030216.3A CN201511030216A CN105464615A CN 105464615 A CN105464615 A CN 105464615A CN 201511030216 A CN201511030216 A CN 201511030216A CN 105464615 A CN105464615 A CN 105464615A
- Authority
- CN
- China
- Prior art keywords
- pipe
- hydraulic pressure
- pressure washing
- washing pipe
- 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.)
- Granted
Links
- 239000003129 oil well Substances 0.000 title abstract 5
- 238000005406 washing Methods 0.000 claims abstract description 33
- 238000012856 packing Methods 0.000 claims description 24
- 238000010008 shearing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
- E21B33/1265—Packers; Plugs with fluid-pressure-operated elastic cup or skirt with mechanical slips
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the field of petroleum exploration and development, and particularly relates to a parallel double-pipe packer for a deepwater oil well. The parallel double-pipe packer for the deepwater oil well comprises an upper connector, and two holes are formed in the upper connector and are in threaded connection with a hydraulic washing pipe and an auxiliary pipe respectively; the parallel double-pipe packer for the deepwater oil well further comprises a rubber barrel, two pipe column holes are formed in the rubber barrel, and the hydraulic washing pipe and the auxiliary pipe are correspondingly sleeved with the pipe column holes respectively. Compared with the prior art, the parallel double-pipe packer for the deepwater oil well has the advantages that by adopting an improved rubber barrel structure, the inner diameter of pipe columns are maximized to allow multiple sets of cable bundles to simultaneously pass, and meanwhile the circulation area is increased, so that the oil production amount per unit time is increased; a double-slip structure is adopted, the structure is compact, the well completion need of a deepwater long well section can be met, multi-layer double-pipe oil production is achieved, and deblocking is convenient and can be achieved by directly lifting the upper connector.
Description
Technical field
The invention belongs to oil exploration and development fields, be specifically related to a kind of deepwater wells parallel double tube packer.
Background technology
Intelligent Well Completion integrates the state-of-the-art completion technique in the world that down-hole dynamic monitoring and Optimizing manufacture control automatically, is with a wide range of applications.Intelligent well completion dual tubing packing is core component and the critical equipment of intelligent completion system, and its effect is mainly packing oil jacket annular space and provides the passage lanes measuring the umbilical such as cable (optical cable and cable), hydraulic control lines, control cables.At present, there is following defect in dual tubing packing: one, and existing dual tubing packing packing element is only an annular empty set, can not accomplish the maximum using confined space, makes tubing string internal diameter reach maximum; Two, existing dual tubing packing complex structure, slips sets and deblocking inconvenience.The defect of current dual tubing packing, can not realize deep water long well section completion and many group cable bundles pass through simultaneously, cannot improve circulation area and the oil production in the unit interval, can not provide best service for the exploitation of deepwater wells.
Summary of the invention
For overcoming the defect existed in prior art, the invention provides a kind of deepwater wells parallel double tube packer, it solve the needs that existing packer cannot meet deep water long well section intelligent well completion, achieve deep water long well section completion, multilayer dual tubing oil recovery, the problem that many group cable bundles pass through.
For achieving the above object, the present invention adopts following scheme:
Deepwater wells parallel double tube packer, comprising: top connection, described top connection has two holes, is connected respectively with hydraulic pressure washing pipe, auxiliary gas thread; Wherein, also comprise packing element, packing element is provided with two tubing string holes, and hydraulic pressure washing pipe and auxiliary pipe are inserted in two tubing string holes respectively correspondence.
Compared with prior art, the present invention has following beneficial effect:
1, adopt improvement packing element structure, tubing string internal diameter is maximized, many group cable bundles can be realized and pass through simultaneously, increase circulation area simultaneously, thus improve the oil production in the unit interval.
2, adopt dual-grip structure, compact conformation, can meet deep water long well section completion needs, realize multilayer dual tubing oil recovery, and deblocking is convenient, puts on joint and can realize deblocking directly.
Accompanying drawing explanation
Fig. 1 is deepwater wells parallel double tube packer construction schematic diagram;
Fig. 2 is packing element structural representation;
In figure: 1, top connection, 2, hydraulic pressure washing pipe, 3, upper slips cover, 4, upper slips, 5, upper cone, 6, packing element, 7, hydraulic pressure internal member, 8, hydraulic sleeve, 9, lock ring, 10, pressure transmission hole, 11, lower cone, 12, lower slips, 13, lower slips cover, 14, separate seal ring, 15, auxiliary pipe, 16, lower contact, 17, shear nut, 18, shear pin.
Detailed description of the invention
As shown in Figure 1, deepwater wells parallel double tube packer, comprising: top connection 1, hydraulic pressure washing pipe 2, upper slips cover 3, upper slips 4, upper cone 5, packing element 6, hydraulic pressure internal member 7, hydraulic sleeve 8, lock ring 9, lower cone 11, lower slips 12, lower slips cover 13, solution seal ring 14, auxiliary pipe 15, lower contact 16, shearing nut 17 and shear pin 18; Wherein:
In described top connection, 1 has two holes, and be threaded with hydraulic pressure washing pipe 2, auxiliary pipe 15 respectively, hydraulic pressure washing pipe 2 is provided with pressure transmission hole 10, and hydraulic pressure washing pipe 2 lower end is provided with annular groove;
Described upper slips cover 5 is nested on hydraulic pressure washing pipe 2 and auxiliary pipe 15, and is threaded with top connection 1;
Described upper cone 5 is provided with two through holes, and two through holes respectively correspondence are inserted in hydraulic pressure washing pipe 2 and auxiliary pipe 15; Upper slips 4 is located between upper cone 5 and upper slips cover 3;
As shown in Figure 2, packing element 6 is provided with two tubing string holes, and hydraulic pressure washing pipe 2 and auxiliary pipe 15 are inserted in two tubing string holes respectively correspondence;
Described lock ring 9 inside is provided with saw-tooth thread, and lock ring 9 is threaded with hydraulic pressure internal member 7, and the hydraulic sleeve internals 7 that lock ring 9 is housed are nested into hydraulic pressure washing pipe 2 with on auxiliary pipe 15, and hydraulic sleeve 8 is nested in hydraulic sleeve internals 7.
Described lower cone 11 end face is provided with two through holes, and two through holes respectively correspondence are inserted in hydraulic pressure washing pipe 2 with on auxiliary pipe 15; Lower slips 12 is placed in lower slips cover 13, and lower slips 12, lower slips cover 13 are nested into hydraulic pressure washing pipe 2 in the lump with on auxiliary pipe 15, and lower slips 12 is propped up by lower cone 11;
Described solution seal ring 14 is nested in the groove of setting on hydraulic pressure washing pipe 2;
Described lower contact 16 is provided with two through holes, and two through holes respectively correspondence are inserted in hydraulic pressure washing pipe 2 with on auxiliary pipe 15, and upper end is threaded with lower slips cover 13.
Described shearing nut 17 is nested on hydraulic pressure washing pipe 2, is threaded with lower contact lower end, and shearing nut 17 is equipped with the shear pin 18 required for deblocking, can according to the shear force of deblocking power size setting shear pin 18.
As shown in Figure 2, deepwater wells parallel double tube packer adopts and improves packing element structure, the structure of packing element 6 is directly make a call to two tubing string holes on packing element, make two endowels can be each passed through tubing string hole, when setting, requisite space is little, can increase dual string diameter, when being more conducive to deepwater wells exploitation, realize dual tubing oil recovery, the needs that many group bunchs of cables pass through simultaneously.
Deepwater wells parallel double tube packer adopts dual-grip structure, and the power can born from lower tubular column on packer is different is impacted, and oil pipe can be avoided to produce bending, working environment severe under adapting to deepwater wells.Arrange in lower cone 11 lower end and shear nut 17 and shear pin 18, make it when deblocking, only need to put on joint 1 and can complete deblocking.Overall construction design is compact, and it is convenient to set with deblocking, convenient operation.
When setting, suppress in oil pipe, liquid is entered by pressure transmission hole 10, makes lock ring 9 and hydraulic sleeve internals 7 upward sliding, and promote packing element 6, upper cone 5 moves upward, and upper slips 4 is opened and sets, and lock ring 9 and hydraulic sleeve 8 are locked, and then packing element 6 sets and reaches packing object; The hydraulic pressure entered by pressure transmission mouth 10, makes hydraulic sleeve 8 slide downward simultaneously, promotes lower cone 11 and moves downward, make lower slips 12 open to reach and set object.
During deblocking, oil pipe connects in top connection 1 to be carried, hydraulic pressure washing pipe 2 moves upward together, upper slips cover 3, upper cone 5, packing element 6, hydraulic pressure internal member 7, hydraulic sleeve 8, lower cone 11, lower slips cover 13, lower contact 16, to shear nut 17 geo-stationary motionless, deblocking pin 18 is cut off under the effect of shearing nut 17 and hydraulic pressure washing pipe 2, shear nut 17, lower contact 16 and lower slips cover 13 to move down, lower slips 12 deblocking, lower cone 11, hydraulic sleeve 8, hydraulic sleeve internals 7 move down together, packing element 6 deblocking, upper cone 5 moves down, upper slips 4 deblocking.Solution seal ring 14 can be blocked each of lower slips more than 12 and move down, and deblocking process completes.
Claims (2)
1. a deepwater wells parallel double tube packer, comprising: top connection, described top connection has two holes, be connected with hydraulic pressure washing pipe, auxiliary gas thread respectively, it is characterized in that, also comprise packing element, packing element is provided with two tubing string holes, and hydraulic pressure washing pipe and auxiliary pipe are inserted in two tubing string holes respectively correspondence.
2. deepwater wells parallel double tube packer according to claim 1, it is characterized in that, also comprise: hydraulic pressure washing pipe, upper slips cover, upper slips, upper cone, hydraulic pressure internal member, hydraulic sleeve, lock ring, lower cone, lower slips, lower slips cover, solution seal ring, auxiliary pipe, lower contact, shearing nut and shear pin; Wherein: hydraulic pressure washing pipe is provided with pressure transmission hole, and hydraulic pressure washing pipe lower end is provided with annular groove; Described upper slips cover is nested on hydraulic pressure washing pipe and auxiliary pipe, and is threaded with top connection; Described upper cone is provided with two through holes, and two through holes respectively correspondence are inserted in hydraulic pressure washing pipe and auxiliary pipe; Upper slips is located between upper cone and upper slips cover; Described lock ring inside is provided with saw-tooth thread, and lock ring is threaded with hydraulic pressure internal member, and the hydraulic sleeve internals that lock ring is housed are nested on hydraulic pressure washing pipe and auxiliary pipe, and hydraulic sleeve is nested in hydraulic sleeve internals; Described lower cone end face is provided with two through holes, and two through holes respectively correspondence are inserted on hydraulic pressure washing pipe and auxiliary pipe; Lower slips is placed in lower slips cover, and lower slips, lower slips cover are nested on hydraulic pressure washing pipe and auxiliary pipe in the lump, and lower slips is propped up by lower cone; Described deblocking ring is nested in groove that hydraulic pressure washing pipe is arranged; Described lower contact is provided with two through holes, and two through holes respectively correspondence are inserted on hydraulic pressure washing pipe and auxiliary pipe, and upper end is threaded with lower slips cover; Described shearing nut is nested on hydraulic pressure washing pipe, is threaded with lower contact lower end, and shearing nut is equipped with the shear pin required for deblocking, can according to the shear force of deblocking power size setting shear pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030216.3A CN105464615B (en) | 2015-12-31 | 2015-12-31 | Deepwater wells parallel double tube packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030216.3A CN105464615B (en) | 2015-12-31 | 2015-12-31 | Deepwater wells parallel double tube packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464615A true CN105464615A (en) | 2016-04-06 |
| CN105464615B CN105464615B (en) | 2019-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511030216.3A Active CN105464615B (en) | 2015-12-31 | 2015-12-31 | Deepwater wells parallel double tube packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464615B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946315A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Parallel double-tube layered fireflood ignition system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3640341A (en) * | 1969-11-06 | 1972-02-08 | Texas Iron Works | Apparatus for completing plural zone oil and gas wells |
| CN203905893U (en) * | 2014-06-19 | 2014-10-29 | 荆州市赛瑞能源技术有限公司 | Hydraulic packer capable of being taken out |
| CN104213867A (en) * | 2013-06-04 | 2014-12-17 | 中国石油化工股份有限公司 | Multifunctional water well packer |
| CN104963652A (en) * | 2015-06-30 | 2015-10-07 | 中国石油集团渤海钻探工程有限公司 | Self-sealing compressed packer |
| CN204754881U (en) * | 2015-06-12 | 2015-11-11 | 中国海洋石油总公司 | Double -barrelled gas well flow string parallels |
| CN205532455U (en) * | 2015-12-31 | 2016-08-31 | 东营市福利德石油科技开发有限责任公司 | Parallel double -barrelled packer of deep water oil well |
-
2015
- 2015-12-31 CN CN201511030216.3A patent/CN105464615B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3640341A (en) * | 1969-11-06 | 1972-02-08 | Texas Iron Works | Apparatus for completing plural zone oil and gas wells |
| CN104213867A (en) * | 2013-06-04 | 2014-12-17 | 中国石油化工股份有限公司 | Multifunctional water well packer |
| CN203905893U (en) * | 2014-06-19 | 2014-10-29 | 荆州市赛瑞能源技术有限公司 | Hydraulic packer capable of being taken out |
| CN204754881U (en) * | 2015-06-12 | 2015-11-11 | 中国海洋石油总公司 | Double -barrelled gas well flow string parallels |
| CN104963652A (en) * | 2015-06-30 | 2015-10-07 | 中国石油集团渤海钻探工程有限公司 | Self-sealing compressed packer |
| CN205532455U (en) * | 2015-12-31 | 2016-08-31 | 东营市福利德石油科技开发有限责任公司 | Parallel double -barrelled packer of deep water oil well |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946315A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Parallel double-tube layered fireflood ignition system |
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| Publication number | Publication date |
|---|---|
| CN105464615B (en) | 2019-01-11 |
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