CN106121590A - Radial level boring is windowed filter back flush apparatus - Google Patents
Radial level boring is windowed filter back flush apparatus Download PDFInfo
- Publication number
- CN106121590A CN106121590A CN201610483017.6A CN201610483017A CN106121590A CN 106121590 A CN106121590 A CN 106121590A CN 201610483017 A CN201610483017 A CN 201610483017A CN 106121590 A CN106121590 A CN 106121590A
- Authority
- CN
- China
- Prior art keywords
- inner core
- valve body
- designed
- righting sleeve
- valve
- 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
- 210000002445 nipple Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000638 stimulation 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
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)
- Nozzles (AREA)
Abstract
The present invention relates to radial level drilling technique field, oil field, window filter back flush apparatus particularly to a kind of radial level boring.Threaded with righting sleeve lower end in the valve body upper end of this device, valve body lower end is designed with lower contact, valve inner is mounted with inner core, multiple flowing hole it is evenly equipped with on inner core sidewall, form the sap cavity of annular space between inner tank theca and valve interior wall, inside inner core, be provided with spool, spool lower end be designed to be able to the valve interior wall conical surface match seal cone, valve core upper sleeve is equipped with spring, and spring upper end withstands on inner core upper interior end face.Present invention achieves and just well inwardly opened window filter can be carried out without tripping out tubing string, simple to operate, do not affect normal construction operation, work efficiency is greatly improved, shorten the activity duration, reduce operating cost and the labor intensity of workman.
Description
Technical field:
The present invention relates to radial level drilling technique field, oil field, window filter particularly to a kind of radial level boring
Back flush apparatus.
Background technology:
In petroleum gas field, the application of radial level drilling technique is one to be had efficient recovery or improves single well productivity
Well stimulation.In operation, window opening tool cuts sleeve pipe under high-pressure hydraulic drives and realizes windowing, and microbit connects subsequently
Flexible axle is driven through opening at high-pressure hydraulic transmit the pressure of the drill and moment of torsion and realize stratum is crept into.Final at different layers
On position or same layer position horizontal level different angles, get out the eyelet of certain length, set up gas stream passage, increase draining face
Long-pending, it is achieved volume increase.
No matter operation technique windows or stratum is crept into, be required for high-pressure hydraulic and drive, the window opening tool of down-hole and ground
Layer boring means is easily blocked by impurity and causes tool damage.For ensureing the cleaning of water quality, it is achieved the protection to window opening tool,
Connect a filter of windowing at an upper portion thereof.In reality, owing to tube inner wall exists the silt carried in greasy dirt, rust or water,
Moving down rapidly under high-pressure hydraulic drives, the filter that causes windowing is susceptible to blocking after a period of operation, and ground is pumped
Drastically raising, operation is forced to stop.In production after this situation occurs, solution has been flowline and downhole tool, on ground
After the cleaned filter in face, then oil pipe and instrument are sequentially transferred to shaft bottom.The method needs to trip out tubing string, and the activity duration is long, increases
Add labor intensity and the operating cost of operating personnel.
Summary of the invention:
The technical problem to be solved in the present invention is to provide the boring of a kind of radial level and windows filter back flush apparatus, should
Device achieves and just can be carried out well inwardly opened window filter without tripping out tubing string, simple to operate, does not affect and executes normally
Work industry, is greatly improved work efficiency, shortens the activity duration, reduces operating cost and the labor intensity of workman.Overcome existing
Windowing needs to trip out tubing string after filter blocks and is carried out, and the activity duration is long, increase operating personnel labor intensity and
Operating cost is not enough.
The technical solution used in the present invention is: a kind of radial level boring is windowed filter back flush apparatus, including
Valve body and righting sleeve；Threadeding with righting sleeve lower end in valve body upper end, valve body lower end is designed with lower contact, and valve inner is pacified
Dress is fixed with inner core, inner core sidewall is evenly equipped with multiple flowing hole, forms the sap cavity of annular space between inner tank theca and valve interior wall,
Be provided with spool inside inner core, spool lower end be designed to be able to the valve interior wall conical surface match seal cone, valve core upper sleeve fill
Having spring, spring upper end to withstand on inner core upper interior end face, righting sleeve upper end is designed with top connection, screw thread in the middle part of righting sleeve
Connect and have middle stream pipe nipple, middle stream pipe nipple to be internally formed throttling chamber, throttling chamber main flow by righting bushing core internal with inner core
Road is connected, and middle stream pipe nipple sidewall is symmetrically installed with two ball-and-seats I, and the righting sleeve lining of middle stream pipe nipple upper end is installed
There are shower nozzle, shower nozzle upper end to be designed to nozzle, between shower nozzle outer wall and righting sleeve lining, are symmetrically installed with ball-and-seat II and list
Stream valve III.
The invention has the beneficial effects as follows: well inwardly opened window filter just can be carried out by the present invention without tripping out tubing string,
Simple to operate, do not affect normal construction operation, work efficiency is greatly improved, shorten the activity duration, reduce operating cost and work
The labor intensity of people.
Accompanying drawing illustrates:
The present invention will be further described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention:
The filter back flush apparatus as it is shown in figure 1, a kind of radial level boring is windowed, including valve body 1 and righting sleeve
7；Threadeding with righting sleeve 7 lower end in valve body 1 upper end, valve body 1 lower end is designed with lower contact 17, and valve body 1 is internally installed fixing
Having inner core 6, inner core 6 lower end to be against on valve body 1 conical surface of inboard wall, inner core 6 upper end withstands on righting sleeve 7 lower surface, inner core 6 sidewall
On be evenly equipped with multiple flowing hole 5, form the sap cavity 16 of annular space between inner core 6 outer wall and valve body 1 inwall, inner core 6 is internal is provided with valve
Core 4, spool 4 lower end be designed to be able to valve body 1 conical surface of inboard wall match seal cone 2, spool 4 is set with spring 3, bullet
Spring 3 upper end withstands on inner core 6 upper interior end face, and righting sleeve 7 upper end is designed with top connection 18, and in the middle part of righting sleeve 7, screw thread is even
Being connected to middle stream pipe nipple 14, middle stream pipe nipple 14 is internally formed throttling chamber 13, and throttling chamber 13 is internal with inner core 6 by righting sleeve 7
The sprue 15 of the heart is connected, and middle stream pipe nipple 14 sidewall is symmetrically installed with two ball-and-seats I 8, holding up of middle stream pipe nipple 14 upper end
Being provided with shower nozzle 11 on positive sleeve 7 inwall, shower nozzle 11 upper end is designed to nozzle 10, at shower nozzle 11 outer wall and righting sleeve 7 inwall
Between be symmetrically installed with ball-and-seat II 9 and ball-and-seat III 12.
During use, the top connection 18 of the present invention is connected with filter of windowing, and lower contact 17 connects window opening tool.Normally executing
In man-hour, high-pressure fluid is descending by top connection 18, and segment fluid flow arrives throttling chamber 13 through shower nozzle 11 after nozzle 10 flows through, another
Partial high pressure fluid is descending after flowing through ball-and-seat II 9 and ball-and-seat III 12 arrives throttling chamber 13.Spool 4 is at spring 3 and high-pressure spray
Under the common effect of body so that cone 2 is fitted tightly on valve body 1 conical surface of inboard wall.Then the high-pressure fluid in throttling chamber 13 is difficult
With descending from sprue 15, but translateral ball-and-seat I 8 flows out, and descending arrival window opening tool leads to from the bridge-type of window opening tool
Enter in road, it is achieved casing sidetracking.
When, after strainer screen blocking of windowing, ground pump pressure display drastically raises, and adjusts fluid at well head and suppresses channel, from
Oil jacket annular space squeezes into high-pressure fluid, and fluid enters in window opening tool runner, above backflows through lower contact 17, backs down cone 2, compression
Spring 3, spool 4 moves, after fluid flows through the flowing hole 5 on sap cavity 16 and inner core 6, up by sprue 15, arrives throttling
Chamber 13.Owing to ball-and-seat II 9 and ball-and-seat III 12 are closed, high-pressure fluid, after shower nozzle 11, nozzle 10, forms high-pressure spray, punching
Wash strainer screen of windowing.Tamper leaves filter screen, and ground pump pressure display declines, and persistently suppresses a period of time, and tamper is at oil
Going upward to well head in pipe discharge, de-plugging completes.
It is understood that above with respect to the specific descriptions of the present invention, be merely to illustrate the present invention and be not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still can carry out the present invention
Amendment or equivalent, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
In.
Claims (1)
1. radial level boring is windowed a filter back flush apparatus, including valve body (1) and righting sleeve (7)；Its feature
Being: threaded with righting sleeve (7) lower end in valve body (1) upper end, valve body (1) lower end is designed with lower contact (17), valve body (1)
The internally installed inner core (6) that is fixed with, inner core (6) sidewall is evenly equipped with multiple flowing hole (5), and inner core (6) outer wall is interior with valve body (1)
Forming the sap cavity (16) of annular space between wall, inner core (6) is internal is provided with spool (4), and spool (4) lower end is designed to be able to and valve body
(1) conical surface of inboard wall match seal cone (2), spool (4) is set with spring (3), spring (3) upper end withstands on inner core (6)
On upper interior end face, righting sleeve (7) upper end is designed with top connection (18), and righting sleeve (7) middle part is threaded has middle stream short
Joint (14), middle stream pipe nipple (14) is internally formed throttling chamber (13), and throttling chamber (13) is internal with inner core (6) by righting sleeve (7)
The sprue (15) at center is connected, and middle stream pipe nipple (14) sidewall is symmetrically installed with two ball-and-seats I (8), middle stream pipe nipple
(14) being provided with shower nozzle (11) on righting sleeve (7) inwall of upper end, shower nozzle (11) upper end is designed to nozzle (10), at shower nozzle
(11) ball-and-seat II (9) and ball-and-seat III (12) it are symmetrically installed with between outer wall and righting sleeve (7) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483017.6A CN106121590B (en) | 2016-06-28 | 2016-06-28 | Radial level drilling windowing filter back flush apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483017.6A CN106121590B (en) | 2016-06-28 | 2016-06-28 | Radial level drilling windowing filter back flush apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121590A true CN106121590A (en) | 2016-11-16 |
| CN106121590B CN106121590B (en) | 2018-05-01 |
Family
ID=57265793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483017.6A Active CN106121590B (en) | 2016-06-28 | 2016-06-28 | Radial level drilling windowing filter back flush apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121590B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729877A (en) * | 2018-05-23 | 2018-11-02 | 中国石油大学(华东) | Radially horizontal well commutation pipe nipple underground cleaning device |
| US11421494B1 (en) | 2021-03-29 | 2022-08-23 | Saudi Arabian Oil Company | Filter tools and methods of filtering a drilling fluid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069285A (en) * | 1988-12-14 | 1991-12-03 | Nuckols Thomas E | Dual wall well development tool |
| US6158512A (en) * | 1997-10-27 | 2000-12-12 | Testtech Services As | Method and apparatus for the removal of sand in an underwater well |
| CN1928318A (en) * | 2006-09-28 | 2007-03-14 | 大庆油田有限责任公司 | Stainless steel seepage scale removal blowdown backwash fine filter for flooding well |
| CN102373902A (en) * | 2011-11-10 | 2012-03-14 | 西安瑞捷生物科技有限公司 | Novel jet flow well flushing device |
| CN204804772U (en) * | 2015-07-21 | 2015-11-25 | 中国石油化工股份有限公司 | Automatic sand removing device of bottom single current valve |
-
2016
- 2016-06-28 CN CN201610483017.6A patent/CN106121590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069285A (en) * | 1988-12-14 | 1991-12-03 | Nuckols Thomas E | Dual wall well development tool |
| US6158512A (en) * | 1997-10-27 | 2000-12-12 | Testtech Services As | Method and apparatus for the removal of sand in an underwater well |
| CN1928318A (en) * | 2006-09-28 | 2007-03-14 | 大庆油田有限责任公司 | Stainless steel seepage scale removal blowdown backwash fine filter for flooding well |
| CN102373902A (en) * | 2011-11-10 | 2012-03-14 | 西安瑞捷生物科技有限公司 | Novel jet flow well flushing device |
| CN204804772U (en) * | 2015-07-21 | 2015-11-25 | 中国石油化工股份有限公司 | Automatic sand removing device of bottom single current valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729877A (en) * | 2018-05-23 | 2018-11-02 | 中国石油大学(华东) | Radially horizontal well commutation pipe nipple underground cleaning device |
| CN108729877B (en) * | 2018-05-23 | 2020-04-21 | 中国石油大学(华东) | Radial horizontal well reversing short section underground cleaning device |
| US11421494B1 (en) | 2021-03-29 | 2022-08-23 | Saudi Arabian Oil Company | Filter tools and methods of filtering a drilling fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106121590B (en) | 2018-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201023 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |