CN108278095A - A kind of piston reciprocating type exempts to bore plug stage cementing device - Google Patents
A kind of piston reciprocating type exempts to bore plug stage cementing device Download PDFInfo
- Publication number
- CN108278095A CN108278095A CN201810215720.8A CN201810215720A CN108278095A CN 108278095 A CN108278095 A CN 108278095A CN 201810215720 A CN201810215720 A CN 201810215720A CN 108278095 A CN108278095 A CN 108278095A
- Authority
- CN
- China
- Prior art keywords
- piston
- control
- stage cementing
- hydraulic fluid
- fluid chamber
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 210000002445 nipple Anatomy 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000002195 soluble material Substances 0.000 claims description 3
- 208000034656 Contusions Diseases 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 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
- E21B33/13—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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of piston reciprocating types to exempt to bore plug stage cementing device, including top connection, control device, casing nipple, piston bush component, the lower contact set gradually from top to bottom, piston, dynamic sealing between the piston and piston bush component are equipped in piston bush component, it is characterised in that：Hydraulic fluid chamber is equipped in the control device, the piston bush is externally provided with pressure tube, piston upper chamber and piston cavity of resorption are equipped between the piston and piston bush component, the pressure tube is equipped with several channels, it is respectively communicated with hydraulic fluid chamber and piston upper chamber and control sap cavity and piston cavity of resorption, the control device is used to control the hydraulic oil in hydraulic fluid chamber, and the action of piston is driven by pressure tube.The present invention can reduce rubber plug input, without by hydraulic cutter pin switching channels, avoiding uncertain existing for down-hole pressure control cutting pin.Without boring plug after well cementation, realizes tubing string full-bore, reduce operating risk.
Description
Technical field
The present invention relates to a kind of oil gas field well cementation completion downhole tools more particularly to a kind of piston reciprocating type to exempt to bore plug classification
Cementing device.
Background technology
In deep-well, long cementing interval well, Absorption Wells of Low Pressure well cementation completion, conventional cementing technology be difficult to meet geologic requirements and
Ensure cementing quality, it is stage cementing device often to use fraclional well cementing technology, key tool.Common mechanical and hydraulic pressure
Formula stage cementing device needs to beat by hydraulic cutter pin (wherein mechanical stage cementing device will also first put into gravity plug)
Open cycle hole carries out two level well cementation, needs input shut-off plug to be closed by hydraulic cutter pin after completing two level well cementation and recycles
Hole needs to employ later small drilling tool brill except internal structure, and operating risk is high；Drilling-free sizing cementing device glue after completing to cement the well
Plug and attachment fall well automatically, can save small drilling tool for well and drilling machine holding time, reduction operating risk, but there are glue for the prior art
Plug and attachment fall the unsuccessful problem of well, cause utilization rate low.
Invention content
Technical problem to be solved by the present invention lies in providing in view of the deficiency of the prior art, a kind of piston is past
Compound to exempt to bore plug stage cementing device, which can reduce rubber plug input, be opened without passing through hydraulic cutter pin
Channel is closed, without boring plug after well cementation, tubing string full-bore is realized, reduces operating risk.
The technical solution adopted in the present invention is：A kind of piston reciprocating type exempts to bore plug stage cementing device, including from up to
Under the top connection, control device, casing nipple, piston bush component, the lower contact that set gradually, be equipped with and live in piston bush component
Plug, dynamic sealing between the piston and piston bush component, it is characterised in that：Hydraulic fluid chamber is equipped in the control device, it is described
Piston bush is externally provided with pressure tube, and piston upper chamber and piston cavity of resorption, the pressure tube are equipped between the piston and piston bush component
Equipped with several channels, it is respectively communicated with hydraulic fluid chamber and piston upper chamber and hydraulic fluid chamber and piston cavity of resorption, the control device is used
Hydraulic oil in control hydraulic fluid chamber, the action of piston is driven by pressure tube.
According to the above technical scheme, the piston bush component include from top to bottom sequentially connected upper seal support, pressure-bearing set, open
Hole set, bottom sealing socket, the upper seal support are connected with casing nipple, and bottom sealing socket is connect with lower contact, and the pressure-bearing is covered and lived
Piston upper chamber and piston cavity of resorption are equipped between plug.
According to the above technical scheme, it is equipped with radial aperture on trepanning set and piston.
According to the above technical scheme, the control device includes control set, pressure sensor, control circuit, reversal valve, driving
Mechanism, the control circuit control commutation valve events, and the hydraulic oil controlled in driving mechanisms control hydraulic fluid chamber enters piston
Epicoele or piston cavity of resorption.
According to the above technical scheme, two level obturating plug is equipped in top connection, by being connect inside screw thread and top connection, described two
Grade obturating plug uses split structure or monolithic construction.
According to the above technical scheme, the two level obturating plug uses split structure, including connector sleeve and secondary seal seat, described
It is connect inside connector sleeve and top connection, the secondary seal seat is made of can dissolve material.
According to the above technical scheme, it is equipped with fixed ring between lower contact and piston bush, is equipped with outside level-one and fills in fixed ring.
According to the above technical scheme, the fixed ring is made of can dissolve material.
According to the above technical scheme, a part or entirety and fixed ring for two level obturating plug is made of soluble material, is led to
Soluble media is crossed to be dissolved.
It is obtained by the present invention to have the beneficial effect that：
1, the present invention by the pressure signal that ground is sent it is not necessary that by hydraulic cutter pin switching channels, it is dynamic to control piston
Make, avoids down-hole pressure control and cut uncertainty existing for pin.
2, reduce the input of gravity plug.
3, it removes rubber plug by modes such as dissolvings and is fixedly connected with mechanism, realize full-bore, avoid brill plug risk.
Description of the drawings
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the structural schematic diagram filled in level-one in the present invention.
Fig. 3 is the structural schematic diagram of two level bruising plug in the present invention.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
Exempt to bore plug stage cementing device as shown in Figure 1, present embodiments providing a kind of piston reciprocating type, including from top to bottom
Top connection 1, control device, casing nipple 7, piston bush component, the lower contact 17 set gradually is equipped in piston bush component and lives
Plug 11 is equipped with two level obturating plug in top connection 1, and by being connect inside screw thread and top connection, the two level obturating plug is using split type
Structure or monolithic construction.Dynamic sealing between the piston 11 and piston bush component, the control device is interior to be equipped with hydraulic fluid chamber
18, the piston bush is externally provided with pressure tube 9, and piston upper chamber 19 and piston upper chamber 20 are equipped between the piston 11 and piston bush,
The pressure tube 9 is equipped with several channels, is respectively communicated under hydraulic fluid chamber 18 and piston upper chamber 19 and hydraulic fluid chamber 18 and piston
Chamber 20, the control device are used to control the hydraulic oil in hydraulic fluid chamber 18, and the action of piston 11 is driven by pressure tube 9.Its
In, control device is connect by pipe fitting 8, pressure tube 9 with piston bush component.
The piston bush component include from top to bottom sequentially connected upper seal support 10, pressure-bearing set 12, trepanning set 13, under it is close
Seal seat 14, the upper seal support 10 is connected with casing nipple 7, and bottom sealing socket 14 is connect with lower contact 17, the pressure-bearing cover 12 and
Piston upper chamber 19 and piston cavity of resorption 20 are equipped between piston 11.It is equipped with radial aperture 21 on trepanning set 13, is set on piston 11
There is radial aperture 22.
The control device includes control set 5, pressure sensor 4, control circuit, reversal valve, driving mechanism 6, the control
Circuit control processed commutates valve events, and control the hydraulic oil that driving mechanism 6 controls in hydraulic fluid chamber 18 enter piston upper chamber 19 or
Piston cavity of resorption 20.Wherein, pressure sensor 4 is installed in the upper end of hydraulic fluid chamber 18, and pressure sensor 4, which receives, comes from ground installation
The fluid pressure signal of output, control circuit analysis output control signal, controls driving mechanism and reversal valve controls hydraulic fluid chamber
Hydraulic oil in 18 drives piston 11 to act by pressure tube 9.
In the present embodiment, the two level obturating plug uses split structure, including connector sleeve 2 and secondary seal seat 3, the company
It is connected through a screw thread inside female connector 2 and top connection 1.Fixed ring 15 is equipped between lower contact 17 and bottom sealing socket 14, in fixation
It is equipped with outside level-one in ring 15 and fills in 16.Wherein, the secondary seal seat 3 and fixed ring 15 are made of soluble material, can be passed through
Soluble media is dissolved, and can also be bored except extremely close to casing inner diameter.
The present invention is connected on solid completion tubular string, and G.I.H precalculated position as required；Level-one cementing is completed to make
After industry, 23 are filled in out of well head input level-one, replacement, 23 downlinks of the interior plug of level-one are compound with plug 16 outside level-one after in place, fall to one
Grade obturating plug and bruising；It replaces into precalculated position below insulating liquid to the present invention；Ground sends fluid pressure signal, controls on piston
Row is opened two level cementing channel (radial aperture 21 is connected to radial aperture 22)；After completing two level cementing job, from well head
Two level bruising plug 24 is put into, is replaced, two level bruising plug 24 comes downwards to secondary seal seat 3 and bruising；Ground sends fluid pressure letter
Number, it controls descent of piston, closes two level cementing channel (radial aperture 21 and radial aperture 22 are staggered, and lose connection)；From ground
Face-pumping enters dissolving medium, and secondary seal seat 3 and fixed ring 15 are dissolved；Plug is swept, makes pit shaft internal diameter close to casing inner diameter.
Claims (9)
1. a kind of piston reciprocating type exempt from bore plug stage cementing device, including set gradually from top to bottom top connection, control device,
Casing nipple, piston bush component, lower contact are equipped with piston in piston bush component, are moved between the piston and piston bush component
Sealing, it is characterised in that：Be equipped with hydraulic fluid chamber in the control device, the piston bush is externally provided with pressure tube, the piston with
Piston upper chamber and piston cavity of resorption are equipped between piston bush component, the pressure tube is equipped with several channels, is respectively communicated with hydraulic fluid chamber
With piston upper chamber and hydraulic fluid chamber and piston cavity of resorption, the control device is used to control the hydraulic oil in hydraulic fluid chamber, pass through
Pressure tube drives the action of piston.
2. stage cementing device according to claim 1, it is characterised in that：The piston bush component include from top to bottom according to
Upper seal support, pressure-bearing set, trepanning set, the bottom sealing socket of secondary connection, the upper seal support are connected with casing nipple, bottom sealing socket with
Lower contact connects, and piston upper chamber and piston cavity of resorption are equipped between the pressure-bearing set and piston.
3. stage cementing device according to claim 2, it is characterised in that：Radial open is equipped on trepanning set and piston
Hole.
4. stage cementing device according to claim 1 or 2, it is characterised in that：The control device includes control set, pressure
Force snesor, control circuit, reversal valve, driving mechanism, the control circuit control commutation valve events, and control driving mechanism control
Hydraulic oil in hydraulic fluid chamber processed enters piston upper chamber or piston cavity of resorption.
5. stage cementing device according to claim 1 or 2, it is characterised in that：It is equipped with two level obturating plug in top connection, leads to
It crosses inside screw thread and top connection and connect, the two level obturating plug uses split structure or monolithic construction.
6. stage cementing device according to claim 5, it is characterised in that：The two level obturating plug uses split structure,
It including connector sleeve and secondary seal seat, is connect inside the connector sleeve and top connection, the secondary seal seat is using dissolvable material
Matter is made.
7. stage cementing device according to claim 1 or 2, it is characterised in that：It is equipped between lower contact and piston bush
Fixed ring is equipped with outside level-one in fixed ring and fills in.
8. stage cementing device according to claim 7, it is characterised in that：The fixed ring is using the material system of can dissolve
At.
9. stage cementing device according to claim 5, it is characterised in that：The part of two level obturating plug or it is whole and
Fixed ring is made of soluble material, is dissolved by soluble media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215720.8A CN108278095B (en) | 2018-03-15 | 2018-03-15 | Piston reciprocating type drilling-free plug stage cementing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215720.8A CN108278095B (en) | 2018-03-15 | 2018-03-15 | Piston reciprocating type drilling-free plug stage cementing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278095A true CN108278095A (en) | 2018-07-13 |
| CN108278095B CN108278095B (en) | 2024-04-02 |
Family
ID=62809814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810215720.8A Active CN108278095B (en) | 2018-03-15 | 2018-03-15 | Piston reciprocating type drilling-free plug stage cementing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278095B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177565A (en) * | 2020-09-27 | 2021-01-05 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
| CN114109299A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Stage cementing device and method for top cementing |
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|---|---|---|---|---|
| US6497291B1 (en) * | 2000-08-29 | 2002-12-24 | Halliburton Energy Services, Inc. | Float valve assembly and method |
| CN201206452Y (en) * | 2008-03-10 | 2009-03-11 | 周华安 | Oil and gas well sleeve pipe and oil conduit clogging device for preventing blowout |
| CN201236664Y (en) * | 2008-07-04 | 2009-05-13 | 李熠 | Special shaft mouth apparatus of thick oil thermal production well |
| CN101691834A (en) * | 2009-05-20 | 2010-04-07 | 胜利油田利丰稠油技术开发有限公司 | Inner tube-free drillable-retrievable grading cementing well completion technology |
| CN101701513A (en) * | 2009-11-04 | 2010-05-05 | 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 | Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
| CN104088601A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Channeling sealing tool for outer packer of cement paste filled pipe |
| CN104088599A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Expansion bridge blinding method for outer packer of cement paste filled pipe |
| CN206769870U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | Small size is exempted to bore plug completion tool |
| CN208122819U (en) * | 2018-03-15 | 2018-11-20 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of piston reciprocating type exempts to bore plug stage cementing device |
-
2018
- 2018-03-15 CN CN201810215720.8A patent/CN108278095B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497291B1 (en) * | 2000-08-29 | 2002-12-24 | Halliburton Energy Services, Inc. | Float valve assembly and method |
| CN201206452Y (en) * | 2008-03-10 | 2009-03-11 | 周华安 | Oil and gas well sleeve pipe and oil conduit clogging device for preventing blowout |
| CN201236664Y (en) * | 2008-07-04 | 2009-05-13 | 李熠 | Special shaft mouth apparatus of thick oil thermal production well |
| CN101691834A (en) * | 2009-05-20 | 2010-04-07 | 胜利油田利丰稠油技术开发有限公司 | Inner tube-free drillable-retrievable grading cementing well completion technology |
| CN101701513A (en) * | 2009-11-04 | 2010-05-05 | 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 | Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
| CN104088601A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Channeling sealing tool for outer packer of cement paste filled pipe |
| CN104088599A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Expansion bridge blinding method for outer packer of cement paste filled pipe |
| CN206769870U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | Small size is exempted to bore plug completion tool |
| CN208122819U (en) * | 2018-03-15 | 2018-11-20 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of piston reciprocating type exempts to bore plug stage cementing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109299A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Stage cementing device and method for top cementing |
| CN114109299B (en) * | 2020-08-27 | 2024-04-19 | 中国石油化工股份有限公司 | Stage cementing device for top cementing and method thereof |
| CN112177565A (en) * | 2020-09-27 | 2021-01-05 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
| CN112177565B (en) * | 2020-09-27 | 2021-05-14 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108278095B (en) | 2024-04-02 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191227 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Applicant after: PETROLEUM ENGINEERING TECHNOLOGY Research Institute OF HANJIANG OIL FIELD BRANCH SINOPEC Address before: 430035 Hubei city of Wuhan province Gutian two Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Applicant before: PETROLEUM ENGINEERING TECHNOLOGY Research Institute OF HANJIANG OIL FIELD BRANCH SINOPEC |
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