CN108661595A - A kind of oily, well lateral aperture finishing drilling method - Google Patents
A kind of oily, well lateral aperture finishing drilling method Download PDFInfo
- Publication number
- CN108661595A CN108661595A CN201810397914.4A CN201810397914A CN108661595A CN 108661595 A CN108661595 A CN 108661595A CN 201810397914 A CN201810397914 A CN 201810397914A CN 108661595 A CN108661595 A CN 108661595A
- Authority
- CN
- China
- Prior art keywords
- lateral aperture
- screen casing
- tubing string
- sub
- hanger
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000013043 chemical agent Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000007873 sieving Methods 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
A kind of oily, well lateral aperture finishing drilling method, its method is after the completion of oil, well window sidetracking lateral aperture, fracturing sand screen casing (5), hanger (4), back-off sub (2) and tubing string (1) are filled up in tripping in successively, can operate back-off sub (2) by tubing string (1) when filling up fracturing sand screen casing (5) completely into lateral aperture makes it be separated with hanger (4), then puts down tubing string (1) compressing hanger (4) gently and be suspended at casing (3) windowing.The present invention is to use to fill up fracturing sand screen casing (5) merging lateral aperture replacement bore hole finishing drilling or the finishing drillings method such as pressure break back-up sand and chemical agent Reinforcing hole wall, caving in, will not being polluted to stratum for hole wall thus can be controlled, so as to ensure lateral aperture seepage flow effect steady in a long-term.
Description
Technical field
The present invention relates to a kind of oil field well construction technologies, especially be used for oil, well set inwardly opened window Sidetracking it is a kind of oil,
Well lateral aperture finishing drilling method.
Background technology
Before the present invention, when each oil field carries out oil, well set inwardly opened window sidetracking lateral aperture, bore hole finishing drilling is mostly used, or using auxiliary
The finishing drillings method such as pressure break back-up sand and injection chemical agent Reinforcing hole wall.It collapses since conventional bore hole finishing drilling method is unable to control hole wall
It collapses, thus cannot be guaranteed lateral aperture seepage flow effect steady in a long-term；And assist the finishing drillings such as pressure break back-up sand and chemical agent Reinforcing hole wall
Although method can control caving in for hole wall, often centainly polluted caused by construction liquid is to stratum in implementation process, because
This can not also ensure lateral aperture seepage flow effect steady in a long-term.
Invention content
The purpose of the present invention is：Inwardly opened window sidetracking lateral aperture is covered for oil, well, a kind of finishing drilling method is provided, since this method is to adopt
It is placed in lateral aperture with the fracturing sand screen casing that fills up being process by coiled tubing, conventional bore hole finishing drilling is substituted or auxiliary pressure break is filled out
The finishing drillings method such as sand and chemical agent Reinforcing hole wall, therefore caving in, will not being polluted to stratum for hole wall can be controlled, to
It can ensure lateral aperture seepage flow effect steady in a long-term.
The purpose of the present invention is what is realized by following measures：A kind of oily, well lateral aperture finishing drilling method, including fill up
Fracturing sand screen casing, hanger, back-off sub, tubing string and guider, it is characterized in that when oil, well window sidetracking lateral aperture are applied
After work has completed out drilling tool, you can be machined with by tube wall what the coiled tubing of open-work was constituted according to horizontal hole length and aperture assembling
Fracturing sand screen casing is filled up, screen casing top closure, tail end installation hanger and the back-off sub in tubing string lower end are connected；Tripping in
Sequence is to fill up fracturing sand screen casing top and first enters well, is hanger, back-off sub and tubing string successively, when screen casing top is down toward well
Under guider when, the lowering velocity of tubing string can be slowed down, make screen casing top sleeve pipe open a window and lateral aperture in, until
Fracturing sand screen casing is filled up completely into lateral aperture；It is made by oil pipe column operation back-off sub again at this time and fills up fracturing sand screen casing
On hanger be separated, put down tubing string gently again after completely disengaging, so that back-off sub is passed through guider and act on pressure
On hanger, and it is made safely to be suspended at casing sidetracking, it is complete then can to play fuel-displaced tubing string, back-off sub and guider
At construction.
The purpose of the present invention can also be realized by following measures：The screen casing being process by coiled tubing, can be at it
The strainer that uniform winding is made of stainless steel wire on outer tube wall；Meanwhile sieving casing pack fracturing sand.
The present invention is that fracturing sand screen casing merging lateral aperture substitutes conventional bore hole finishing drilling or-auxiliary pressure break is filled out using filling up
The finishing drillings method such as sand and chemical agent Reinforcing hole wall, therefore caving in, will not being polluted to stratum for hole wall can be controlled, to
It can ensure lateral aperture seepage flow effect steady in a long-term.
Description of the drawings
Fig. 1 is the schematic diagram of oil well horizontal hole finishing drilling method.
Specific implementation mode
Oil, well lateral aperture finishing drilling method are：After drilling tool has been completed out in oil, the construction of well window sidetracking lateral aperture, you can root
Be machined with by tube wall that the coiled tubing of open-work constitutes according to horizontal hole length and aperture assembling fills up fracturing sand screen casing 5, and can be
Uniform winding has stainless steel wire strainer to prevent silt blocking on its outer tube wall.5 top closure of screen casing, tail end install hanger 4
And the back-off sub 2 in 1 lower end of tubing string is connected；Tripping in sequence is to fill up 5 top of fracturing sand screen casing and first enters well, is outstanding successively
Hanging device 4, back-off sub 2 and tubing string 1 can slow down tubing string 1 when 5 top of screen casing is down toward the guider 6 of underground
Lowering velocity makes to fill up in the windowing of 5 top sleeve pipe 3 of fracturing sand screen casing and lateral aperture, complete until filling up fracturing sand screen casing 5
Enter lateral aperture entirely；4 phase of hanger that back-off sub 2 makes it and fills up on fracturing sand screen casing 5 is operated by tubing string 1 again at this time
It is detached from, puts down tubing string 1 gently again after completely disengaging, back-off sub 2 is made to act on pressure on hanger 4 by guider 6,
And it is made safely to be suspended at 3 windowing of casing, it then can play fuel-displaced tubing string 1, back-off sub 2 and the completion of guider 6 and apply
Work.
Claims (3)
1. a kind of oil, well lateral aperture finishing drilling method, including fill up fracturing sand screen casing, hanger, back-off sub, tubing string and lead
To device, it is characterized in that：After drilling tool has been completed out in oil, the construction of well window sidetracking lateral aperture, you can according to horizontal hole length
And aperture assembling be machined with that the coiled tubing of open-work constitutes by tube wall fill up fracturing sand screen casing, screen casing top closure, tail end peace
It fills hanger and the back-off sub in tubing string lower end is connected；Tripping in sequence is to fill up fracturing sand screen casing top and first enters well, according to
It is secondary that be hanger, back-off sub and tubing string can slow down when filling up guider of the fracturing sand screen casing top down toward underground
The lowering velocity of tubing string makes to fill up in the sleeve pipe windowing of fracturing sand screen casing top and lateral aperture, until filling up pressure break sand sieve
Pipe is completely into lateral aperture；It is set to be separated with the hanger on screen casing by oil pipe column operation back-off sub again at this time, when complete
It puts down tubing string after total detachment gently again, so that back-off sub is passed through guider and act on pressure on hanger, and make it safely
It is suspended at casing sidetracking, then can play fuel-displaced tubing string, back-off sub and guider and complete construction.
2. a kind of oil according to claim 1, well lateral aperture finishing drilling method, it is characterized in that：By coiled tubing processing
At fill up fracturing sand screen casing, the strainer that also uniform winding is made of stainless steel wire on outer tube wall.
3. a kind of oil according to claim 1 or 2, well lateral aperture finishing drilling method, it is characterized in that：It is processed by coiled tubing
Made of fill up fracturing sand screen casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397914.4A CN108661595A (en) | 2018-04-28 | 2018-04-28 | A kind of oily, well lateral aperture finishing drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397914.4A CN108661595A (en) | 2018-04-28 | 2018-04-28 | A kind of oily, well lateral aperture finishing drilling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661595A true CN108661595A (en) | 2018-10-16 |
Family
ID=63781396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810397914.4A Pending CN108661595A (en) | 2018-04-28 | 2018-04-28 | A kind of oily, well lateral aperture finishing drilling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661595A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403289A (en) * | 2008-11-17 | 2009-04-08 | 中国石油大学(北京) | Gravel pre-filling sand prevention pipe |
| CN101624904A (en) * | 2009-08-14 | 2010-01-13 | 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 | Open hole completion well sand resistant pipe string of sidetracking branch well and inserting type acid cleaning filling inner pipe string thereof |
| CN102704876A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Method and tool for putting well completion pipe down by utilizing drill rod |
| CN103032039A (en) * | 2011-09-30 | 2013-04-10 | 中国石油化工股份有限公司 | Pre-filling sand prevention method of highly-deviated well casing pipe and dedicated sand-filter pipe thereof |
| CN103688015A (en) * | 2010-12-17 | 2014-03-26 | 埃克森美孚上游研究公司 | Wellbore apparatus and methods for multi-zone well completion, production and injection |
| US20150107843A1 (en) * | 2012-04-16 | 2015-04-23 | Halliburton Energy Services, Inc. | Completing Long, Deviated Wells |
| CN106089161A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve and completion tubular column |
| CN107620582A (en) * | 2017-08-08 | 2018-01-23 | 广州海洋地质调查局 | Bilayer sleeve sand control completion technique and double-layer anti-sand completion tubular column |
-
2018
- 2018-04-28 CN CN201810397914.4A patent/CN108661595A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403289A (en) * | 2008-11-17 | 2009-04-08 | 中国石油大学(北京) | Gravel pre-filling sand prevention pipe |
| CN101624904A (en) * | 2009-08-14 | 2010-01-13 | 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 | Open hole completion well sand resistant pipe string of sidetracking branch well and inserting type acid cleaning filling inner pipe string thereof |
| CN103688015A (en) * | 2010-12-17 | 2014-03-26 | 埃克森美孚上游研究公司 | Wellbore apparatus and methods for multi-zone well completion, production and injection |
| CN103032039A (en) * | 2011-09-30 | 2013-04-10 | 中国石油化工股份有限公司 | Pre-filling sand prevention method of highly-deviated well casing pipe and dedicated sand-filter pipe thereof |
| US20150107843A1 (en) * | 2012-04-16 | 2015-04-23 | Halliburton Energy Services, Inc. | Completing Long, Deviated Wells |
| CN102704876A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Method and tool for putting well completion pipe down by utilizing drill rod |
| CN106089161A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve and completion tubular column |
| CN107620582A (en) * | 2017-08-08 | 2018-01-23 | 广州海洋地质调查局 | Bilayer sleeve sand control completion technique and double-layer anti-sand completion tubular column |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181016 |
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| WD01 | Invention patent application deemed withdrawn after publication |