CN107269246A - A kind of cementing tool - Google Patents
A kind of cementing tool Download PDFInfo
- Publication number
- CN107269246A CN107269246A CN201710673652.5A CN201710673652A CN107269246A CN 107269246 A CN107269246 A CN 107269246A CN 201710673652 A CN201710673652 A CN 201710673652A CN 107269246 A CN107269246 A CN 107269246A
- Authority
- CN
- China
- Prior art keywords
- ring
- central tube
- tube
- pipe
- tubing string
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 6
- 239000011083 cement mortar Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 208000034656 Contusions Diseases 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of cementing tool, including outer barrel and inner cylinder, outer barrel includes external packer of pipe and cementing device, external packer of pipe includes outer tubing string and is set with the fluid cylinder being arranged on outer tube column outer wall, piston, sealing ring is put in engagement sleeves installing on the outer tubing string of fluid cylinder lower end, cement injection circulation port is respectively provided with sealing ring and outer tube vial wall, inner cylinder includes block ring, central tube and sealing cup, sealing cup is spaced apart two up and down, seating cup body dress is arranged on the central tube tube wall between central tube and external packer of pipe fluid cylinder, restrictive ring seal is equipped with the central tube lower end below sealing cup, cement injection circulation port is located at below block ring；Non-return ring and packing element are set gradually from top to bottom in the middle part of outer tubing string.
Description
Technical field
The present invention relates to a kind of cementing tool of oil field welldrilling.
Background technology
At present, generally using plug well cementation mode is stayed at the top of screen casing in oil drilling, leave cement plug after well cementation, it is necessary to
Lower to bore plug, time duration for boring plug is longer, and to easily carrying out wear-out failure to sleeve pipe.
The content of the invention
It is an object of the invention to provide a kind of cementing tool, cement plug is not stayed in well cementation rear sleeve, brill plug work is eliminated
Sequence, so as to save the engineering time；Avoid boring risk of the plug to casing wear.
The object of the present invention is achieved like this, a kind of cementing tool, including outer barrel and inner cylinder, and outer barrel includes the outer packing of pipe
Device and cementing device, external packer of pipe include outer tubing string and are set with fluid cylinder, the piston being arranged on outer tube column outer wall, fluid cylinder
Engagement sleeves installing, which is put, on the outer tubing string at end is respectively provided with cement injection circulation on sealing ring, sealing ring and outer tube vial wall
Hole, inner cylinder includes block ring, central tube and sealing cup, and sealing cup is spaced apart two up and down, sealing cup suit
On central tube tube wall between centrally disposed pipe and external packer of pipe fluid cylinder, restrictive ring seal is equipped with sealing cup
In the central tube lower end of side, cement injection circulation port is located at below block ring；Set gradually from top to bottom in the middle part of outer tubing string only
Winding and packing element.
During present invention work, ground is suppressed rear external packer of pipe fluid cylinder and started working, and promotes non-return ring to force packing element to compress
Distending, blocks annular space between screen casing and sleeve pipe, so as to avoid cement mortar from sinking to screen casing；Continue to suppress unlatching injector cement mortar
Circulation port, sets up the inside and outside circulation canal of sleeve pipe, then starts after cementing, cemented up by suppressing closing cement mortar circulation
Hole, blocks sleeve pipe is inside and outside to connect, it is to avoid cement mortar is flowed backward in sleeve pipe, so as to realize in well cementation rear sleeve without cement plug.Finally
Tripping in proposes inner tube structure after salvaging drilling tool docking central tube top of fish, and construction is completed.Inventive article is simple in construction, construction letter
Just, risk is low, shortens the well cementation time, and protection sleeve pipe is not worn destruction.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is main view semi-section structural representation of the invention.
Embodiment
A kind of cementing tool, as shown in figure 1, including outer barrel and inner cylinder, outer barrel includes external packer of pipe and cementing device, pipe
External packer includes outer tubing string 2 and is set with fluid cylinder 4, the piston 5 being arranged on outer tube column outer wall, the outer tubing string of the lower end of fluid cylinder 4
Upper engagement sleeves installing is put is respectively provided with cement injection circulation port 16 in sealing ring 8, sealing ring 8 and outer tube vial wall；Inner cylinder
Including block ring 7, central tube 3 and sealing cup 6, sealing cup 6 are spaced apart two up and down, 6 sets of installings of sealing cup
Put on the tube wall of central tube 3 between central tube 3 and external packer of pipe fluid cylinder 4, the sealing of block ring 7 is equipped with sealing cup
In the lower end of central tube 3 of 6 lower sections, cement injection circulation port 16 is located at the lower section of block ring 7；Set successively from top to bottom in the middle part of outer tubing string
Put non-return ring 13 and packing element 14.
Operation principle：To behind precalculated position first under Semi-cementing tool connection sleeve pipe, one-level plug is put into, is delayed after bruising
Slowly 4MPa, voltage stabilizing 2min are boosted to, makes external packer of pipe fully swollen envelope, realize that external packer of pipe is permanent under the effect of non-return ring 13
Set；Continue the slow 7MPa that boosts to and open cement injection circulation port, then well-flushing 2 weeks starts well cementation injection cement mortar, isolation
Liquid, replacement plug, displacement fluid, the slow 9MPa that boosts to cuts shear pin after bruising, closes cement injection circulation port 16；Finally
Tripping in fishing spear above carries 5t and proposes completion after central tube.Inventive article counterpart is few, and assembling is simple, and tool length is shorter effectively
Protection central tube enters the deformation of well process.Grey plug is not stayed after well cementation, it is to avoid bore abrasion of the plug to sleeve pipe；Oil reservoir top is cemented the well, effectively
Formation protection avoids oil layer pollution.
Claims (1)
1. a kind of cementing tool, including outer barrel and inner cylinder, outer barrel include external packer of pipe and cementing device, external packer of pipe includes
Outer tubing string and suit are arranged on engagement sleeves installing on fluid cylinder, piston on outer tube column outer wall, the outer tubing string of fluid cylinder lower end and put
Cement injection circulation port is respectively provided with sealing ring, sealing ring and outer tube vial wall, it is characterized in that：Inner cylinder includes block ring,
Central tube and sealing cup, sealing cup are spaced apart two up and down, and it is outer with pipe that seating cup body dress is arranged on central tube
On central tube tube wall between packer fluid cylinder, restrictive ring seal is equipped with the central tube lower end below sealing cup,
Cement injection circulation port is located at below block ring；Non-return ring and packing element are set gradually from top to bottom in the middle part of outer tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673652.5A CN107269246A (en) | 2017-08-09 | 2017-08-09 | A kind of cementing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673652.5A CN107269246A (en) | 2017-08-09 | 2017-08-09 | A kind of cementing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107269246A true CN107269246A (en) | 2017-10-20 |
Family
ID=60077121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710673652.5A Pending CN107269246A (en) | 2017-08-09 | 2017-08-09 | A kind of cementing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269246A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538168A (en) * | 2018-11-15 | 2019-03-29 | 成都百胜野牛科技有限公司 | A kind of fluid separation apparatus and hoistway structure |
| CN110469292A (en) * | 2019-08-05 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of circulation envelope alters method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024972Y (en) * | 2007-05-10 | 2008-02-20 | 辽河石油勘探局 | An external sealer for fixing well pipe |
| CN201310319Y (en) * | 2008-12-16 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Half-way cementing tool without drilling plug |
| CN202125274U (en) * | 2011-07-09 | 2012-01-25 | 胜利油田中胜科技有限责任公司 | External packer of segmental well completion pipe of thermal production horizontal well |
| CN202157780U (en) * | 2011-08-03 | 2012-03-07 | 克拉玛依塔林石油工程技术服务有限责任公司 | Semi-cementing recyclable packer |
| CN203626722U (en) * | 2013-10-22 | 2014-06-04 | 中国石油天然气股份有限公司 | Sealing and isolating type cementing device |
| CN207194862U (en) * | 2017-08-09 | 2018-04-06 | 新疆永升能源有限责任公司 | A kind of cementing tool |
-
2017
- 2017-08-09 CN CN201710673652.5A patent/CN107269246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024972Y (en) * | 2007-05-10 | 2008-02-20 | 辽河石油勘探局 | An external sealer for fixing well pipe |
| CN201310319Y (en) * | 2008-12-16 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Half-way cementing tool without drilling plug |
| CN202125274U (en) * | 2011-07-09 | 2012-01-25 | 胜利油田中胜科技有限责任公司 | External packer of segmental well completion pipe of thermal production horizontal well |
| CN202157780U (en) * | 2011-08-03 | 2012-03-07 | 克拉玛依塔林石油工程技术服务有限责任公司 | Semi-cementing recyclable packer |
| CN203626722U (en) * | 2013-10-22 | 2014-06-04 | 中国石油天然气股份有限公司 | Sealing and isolating type cementing device |
| CN207194862U (en) * | 2017-08-09 | 2018-04-06 | 新疆永升能源有限责任公司 | A kind of cementing tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538168A (en) * | 2018-11-15 | 2019-03-29 | 成都百胜野牛科技有限公司 | A kind of fluid separation apparatus and hoistway structure |
| CN109538168B (en) * | 2018-11-15 | 2021-04-13 | 成都百胜野牛科技有限公司 | Fluid separation device and well structure |
| CN110469292A (en) * | 2019-08-05 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of circulation envelope alters method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |
|
| WD01 | Invention patent application deemed withdrawn after publication |