CN106437577A - Inverse well flushing settlement switch - Google Patents
Inverse well flushing settlement switch Download PDFInfo
- Publication number
- CN106437577A CN106437577A CN201610903935.XA CN201610903935A CN106437577A CN 106437577 A CN106437577 A CN 106437577A CN 201610903935 A CN201610903935 A CN 201610903935A CN 106437577 A CN106437577 A CN 106437577A
- Authority
- CN
- China
- Prior art keywords
- well
- valve
- flushing
- sedimentation
- pipe nipple
- 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
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 89
- 238000004062 sedimentation Methods 0.000 claims description 49
- 210000002445 nipple Anatomy 0.000 claims description 46
- 239000000956 alloy Substances 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 229910000676 Si alloy Inorganic materials 0.000 claims 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 41
- 238000002347 injection Methods 0.000 abstract description 34
- 239000007924 injection Substances 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002332 oil field water Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004576 sand 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Check Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to an inverse well flushing settlement switch, belongs to the technical field of special tools for water injection of oilfield water wells and particularly relates to a liquid-solid separation device for inverse well flushing treatment of a water well pipe column water injection process. The inverse well flushing settlement switch comprises a well flushing valve, a well flushing short section and a settlement pipe which are sequentially in threaded connection, the well flushing short section is a cylinder, a counterbored hole and an obliquely-upward liquid incoming hole communicated with the counterbored hole are formed in the upper portion of the well flushing short section, an axial settlement through hole communicated with an inner cavity of a valve drum of the well flushing valve is formed in a well flushing short section body, and a screwed plug is mounted at the bottom of the settlement pipe. When the inverse well flushing settlement switch is in use, the lower end of the well flushing valve is connected with the settlement through hole formed by communicating the well flushing short section with a water injection pipe column on the upper portion of the well flushing short section, settling substances in the water injection pipe column are settled into the settlement pipe connected with the lower portion of the well flushing short section to avoid the settling substances being accumulated on a ball seat of the well flushing valve, so that the problems that the well flushing valve is untight in sealing and the water injection pipe column leaks are solved effectively.
Description
Technical field
The present invention relates to a kind of anti-flushing well sedimentation switch, belong to the specific purpose tool technical field of oil field water well water filling, specifically relate to
And arrive liquid, the solid separation device that tubular column of water well water injection technology anti-flushing well is processed.
Background technology
In water injection well in oil fields production process, needing supporting well washing switch, well washing switch includes ball seat and matched steel
Ball, well washing switch is arranged on water injection string bottommost.During normal water filling, steel ball falls on ball seat, closes water injection string bottom and leads to
Road, implements pressurized water injection.When water injection well just notes production, water under high pressure can carry substantial amounts of impurity sedimentation to water injection string bottommost
On switch and form settling section, anti-flushing well treatment process need to be taked.Anti-flushing well treatment process is to inject water under high pressure through oil jacket annular space,
Open the steel ball of water injection pipe bottommost well washing switch, rinse the precipitum in water injection string and well-flushing instrument, and precipitum is taken
Take in ground flow and discharge.The major defect existing is：One is because water injection cycle is long, and precipitum is deposited in the above water filling of steel ball
In tubing string, anti-flushing well injection pressure need to be promoted, cause water injection string to produce bigger pressure reduction, fragile oil pipe and set with oil jacket annular space
Pipe, and stratum is damaged；Two is that precipitum is deposited on the ball seat of well washing switch, causes steel ball to set not tight, water injection pipe
Post is missed, and causes water filling layer to bury water injection string because of pressure reduction greatly anti-discharge sand, affects the normal of well and produces and plugging effect.
CN203035134 discloses a kind of forward and reverse flushing oil pump, belongs to oil production equipment field.Forward and reverse well-flushing is pumped
Pump, including upper box cupling, assembly for plunger, standing valve assembly, work pump barrel, lower box cupling and urceolus, below upper box cupling, external screw thread connects
Urceolus, internal thread connection work pump barrel below upper box cupling, assembly for plunger passes through upper box cupling and is connected with upper box cupling, working barrel jacket casing
Outside assembly for plunger, being connected with standing valve assembly by lower box cupling below work pump barrel, work pump barrel is provided with well washing hole, work
Making there is gap between pump barrel, lower box cupling, standing valve assembly and urceolus, it is structurally characterized in that, when assembly for plunger proposition work pump barrel
When outer, form a fluid passage between work pump barrel, righting cylinder, lower box cupling, standing valve assembly and urceolus, can be used for positive backwash
Well.Equally exist the problems referred to above.
Because the salinity of liquid in the oil jacket annular space of water injection well is higher, if be typically all added with bactericide, antisludging agent etc. by
The annular protective liquid of dry chemical material composition, formation temperature is typically between 70 DEG C～110 DEG C, and water injection well sleeve pipe and water injection pipe
The material of post is different, and electrochemical reaction easily occurs in the annular protective liquid possess electrolyte characteristics, cause water injection well sleeve pipe with
Water injection string generation electrochemical corrosion, shortens the water injection well production cycle.
Content of the invention
It is an object of the present invention to provide a kind of anti-flushing well sedimentation switch, the well washing switch overcoming above-mentioned prior art to exist is opened
Difficulty, fragile oil pipe and sleeve pipe, well washing switch steel ball sets defect not tight, water injection string leakage.
Another purpose of the object of the invention is to overcome because of water injection well sleeve pipe and water injection string generation electrochemical corrosion, causes raw
Product cycle short defect.
The anti-flushing well sedimentation switch of the present invention is including flushing valve, well-flushing pipe nipple, sedimentation pipe, flushing valve, well-flushing pipe nipple, heavy
Fall pipe is threaded successively, and described well-flushing pipe nipple is cylinder, and well-flushing pipe nipple top is provided with counterbore and connects with its counterbore
The inlet opening tilting upward, well-flushing nipple body is provided with the axially sedimentation through hole of the valve cylinder inner space with flushing valve；Sedimentation
Plug is installed bottom pipe.
Described flushing valve includes valve cylinder, valve cover, valve ball, valve ball seat, and valve ball seat is fixed on by connecting short section
In the cavity of valve cover, on the valve ball seat that valve ball is placed in the cavity of valve cover, the tube wall of valve cover is evenly distributed with
The external diameter of some fluid holes tilting upward, valve cover and connecting short section, less than the internal diameter of valve cylinder, forms annular space sedimentation chamber；Valve cylinder
It is all connected with well-flushing short-section thread with connecting short section；Described well-flushing pipe nipple is cylinder, well-flushing pipe nipple top be provided with counterbore and
The inlet opening tilting upward connecting with its counterbore, the annular space sedimentation that well-flushing nipple body is provided with between valve cylinder and valve cover
The axially sedimentation through hole of chamber connection.
Well-flushing pipe nipple top is provided with counterbore and the inlet opening tilting upward connecting with its counterbore is preferably 3；Well-flushing is short
Abridged edition body is provided with the axially sedimentation through hole connecting with the annular space sedimentation chamber between valve cylinder and valve cover and is preferably 3.
It is evenly distributed with 3 fluid holes tilting upward on the tube wall of valve cover.
Described sedimentation pipe lower end is connected with anti-corrosion pipe nipple by box cupling, and plug is arranged on the bottom of anti-corrosion pipe nipple.
Described anti-corrosion pipe nipple is by urceolus, and cloudy guarantor's alloy hoop, pressure ring composition, urceolus upper end does not has interior shoulder, cloudy guarantor's alloy
Ring is placed in the cavity of urceolus, is fixed by pressure ring.
Described cloudy alloy hoop of protecting is mg-si master alloy material.
The present invention connects well-flushing pipe nipple in flushing valve lower end, and well-flushing pipe nipple arranges the sedimentation connecting with its top water injection string
Precipitum in water injection string is deposited in the sedimentation pipe that well-flushing pipe nipple bottom connects, it is to avoid precipitum is deposited in be washed by through hole
On the ball seat of well valve, effectively solve flushing valve and set problem not tight, water injection string leakage；Meanwhile, by sedimentation pipe lower end
Anti-corrosion pipe nipple is installed, slows down water injection string corrosion, extend the water injection well production cycle.
Brief description
Fig. 1 is present configuration view；
Fig. 2 is 1-1 view of the present invention；
Fig. 3 is 6-6 view of the present invention.
Detailed description of the invention
From Fig. 1, Fig. 2, Fig. 3, the anti-flushing well sedimentation of the present invention switchs, including flushing valve the 1st, well-flushing pipe nipple the 2nd, sedimentation pipe
3, flushing valve the 1st, well-flushing pipe nipple the 2nd, sedimentation pipe 3 is threaded successively, and described well-flushing pipe nipple 2 is cylinder, well-flushing pipe nipple 2 top
Being provided with counterbore 201 and the inlet opening 202 tilting upward connecting with its counterbore 201, well-flushing pipe nipple 2 body is provided with and flushing valve
The axially sedimentation through hole 203 of valve cylinder 101 inner space of 1；Plug 6 is installed bottom sedimentation pipe 3.
Described flushing valve 1 includes that valve cylinder the 101st, valve cover the 102nd, valve ball the 103rd, valve ball seat 104 forms, valve ball seat
104 are fixed in the cavity of valve cover 102 by connecting short section 105, and valve ball 103 is placed in the valve in the cavity of valve cover 102
On ball seat 104, the tube wall of valve cover 102 is evenly distributed with some fluid holes 106 tilting upward, valve cover 102 be connected
The external diameter of pipe nipple 105, less than the internal diameter of valve cylinder 101, forms annular space sedimentation chamber；Valve cylinder 101 and connecting short section 105 are all short with well-flushing
Save 2 threaded；Described well-flushing pipe nipple 2 is cylinder, and well-flushing pipe nipple 2 top is provided with counterbore 201 and connects with its counterbore 201
The inlet opening 202 tilting upward, well-flushing pipe nipple 2 body is provided with the annular space sedimentation chamber between valve cylinder 101 and valve cover 102
The axially sedimentation through hole 203 of connection.
As in figure 2 it is shown, described well-flushing pipe nipple 2 top is provided with counterbore 201 and tilting upward of connecting with its counterbore 201
Inlet opening 202 is preferably 3；The annular space sedimentation chamber that well-flushing pipe nipple 2 body is provided with between valve cylinder 101 and valve cover 102 is even
Logical axially sedimentation through hole 203 is preferably 3.
As it is shown on figure 3, be evenly distributed with 3 fluid holes tilting upward 106 on the tube wall of preferred valve cover 102.
Described sedimentation pipe 3 lower end is connected with anti-corrosion pipe nipple 5 by box cupling 4, and plug 6 is arranged on the bottom of anti-corrosion pipe nipple 5.
Described anti-corrosion pipe nipple 5 is made up of urceolus the 501st, cloudy alloy hoop the 502nd, pressure ring 503 of protecting, and urceolus upper end does not has interior
Shoulder, cloudy alloy hoop 502 of protecting is placed in the cavity of urceolus 501, is fixed by pressure ring 503.
Described cloudy alloy hoop 502 of protecting is mg-si master alloy material.
During anti-flushing well work, water under high pressure enters oil jacket annular space, the inlet opening 202 being tilted upward by well-flushing sedimentation pipe nipple 2
Enter counterbore 201, then by the center-aisle of connecting short section 105, back down valve ball 103 and enter valve cover 101, be tilted towards through it
On fluid hole 106 enter into oil pipe, carry precipitum in oil pipe and instrument and reach in ground flow and discharge.
When just noting production, the water under high pressure in oil pipe makes valve ball 103 fall on valve ball seat 104, forms enclosed switch, all
There is valve ball cover 102 on your ball 103, prevent precipitum from falling on valve ball 103, meanwhile, the axle by well-flushing pipe nipple 2 for the precipitum
Enter sedimentation pipe 3 to sedimentation through hole 203, equipped with plug bottom sedimentation pipe 3, bear high pressure simultaneously, it is to avoid precipitum is deposited in all
Around your ball 103, effectively solve flushing valve and set problem not tight, water injection string leakage.
Claims (7)
1. anti-flushing well sedimentation switch, including flushing valve (1), well-flushing pipe nipple (2), sedimentation pipe (3), is characterized in that：Flushing valve (1),
Well-flushing pipe nipple (2), sedimentation pipe (3) are threaded successively, and described well-flushing pipe nipple (2) is cylinder, and well-flushing pipe nipple (2) top sets
Have counterbore (201) and the inlet opening (202) tilting upward connecting with its counterbore (201), well-flushing pipe nipple (2) body be provided with
Axially sedimentation through hole (203) of valve cylinder (101) inner space of flushing valve (1)；Sedimentation pipe (3) bottom is provided with plug (6).
2. anti-flushing well according to claim 1 sedimentation switch, is characterized in that：Described flushing valve (1) includes valve cylinder
(101), valve cover (102), valve ball (103), valve ball seat (104), valve ball seat (104) is fixed by connecting short section (105)
In the cavity of valve cover (102), on the valve ball seat (104) that valve ball (103) is placed in the cavity of valve cover (102), all
It is evenly distributed with some fluid holes (106) tilting upward, valve cover (102) and connecting short section on the tube wall of your cover (102)
(105) external diameter, less than the internal diameter of valve cylinder (101), forms annular space sedimentation chamber；Valve cylinder (101) and connecting short section (105) all with wash
Well pipe nipple (2) is threaded；Described well-flushing pipe nipple (2) is cylinder, well-flushing pipe nipple (2) top be provided with counterbore (201) and with
The inlet opening (202) that what its counterbore (201) connected tilt upward, well-flushing pipe nipple (2) body is provided with and valve cylinder (101) and valve
Axially sedimentation through hole (203) of the annular space sedimentation chamber connection between cover (102).
3. anti-flushing well according to claim 2 sedimentation switch, is characterized in that：Well-flushing pipe nipple (2) top is provided with counterbore (201)
With the inlet opening (202) tilting upward connecting with its counterbore (201) is preferably 3；Well-flushing pipe nipple (2) body is provided with and valve
Axially sedimentation through hole (203) of the annular space sedimentation chamber connection between cylinder (101) and valve cover (102) is preferably 3.
4. anti-flushing well according to claim 2 sedimentation switch, is characterized in that：It is uniformly distributed on the tube wall of valve cover (102)
Have 3 fluid holes tilting upward (106).
5. anti-flushing well according to claim 1 and 2 sedimentation switch, is characterized in that：Described sedimentation pipe (3) lower end is by connecing
Hoop (4) is connected with anti-corrosion pipe nipple (5), and plug (6) is arranged on the bottom of anti-corrosion pipe nipple (5).
6. anti-flushing well according to claim 5 sedimentation switch, is characterized in that：Described anti-corrosion pipe nipple (5) is by urceolus
(501), cloudy guarantor's alloy hoop (502), pressure ring (503) composition, urceolus upper end does not has interior shoulder, outside cloudy guarantor's alloy hoop (502) is placed in
In the cavity of cylinder (501), fixed by pressure ring (503).
7. anti-flushing well according to claim 6 sedimentation switch, is characterized in that：Described cloudy alloy hoop (502) of protecting is magnesium silicon
Alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903935.XA CN106437577B (en) | 2016-10-17 | 2016-10-17 | Reverse flushing well sedimentation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903935.XA CN106437577B (en) | 2016-10-17 | 2016-10-17 | Reverse flushing well sedimentation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437577A true CN106437577A (en) | 2017-02-22 |
| CN106437577B CN106437577B (en) | 2023-11-14 |
Family
ID=58175364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610903935.XA Active CN106437577B (en) | 2016-10-17 | 2016-10-17 | Reverse flushing well sedimentation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437577B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU8405U1 (en) * | 1998-02-03 | 1998-11-16 | Общество с ограниченной ответственностью "Сайма" | IMPLOSION WELL CLEANING DEVICE |
| RU2160825C2 (en) * | 1998-02-03 | 2000-12-20 | Общество с ограниченной ответственностью "Сайма" | Implosive device to clean wells ( versions ) |
| CN101368476A (en) * | 2008-08-29 | 2009-02-18 | 晁建伟 | Injection-production column jacket anti-blocking protection device |
| CN201428428Y (en) * | 2009-06-29 | 2010-03-24 | 吴明涛 | Sand setting type flushing valve |
| CN201786298U (en) * | 2010-08-26 | 2011-04-06 | 吴明涛 | Well flushing valve capable of realizing sand settling |
| CN201963230U (en) * | 2011-03-14 | 2011-09-07 | 仝旭宏 | Water injection well pipe end assembly |
| CN202338239U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Local reverse circulation sand flushing and bailing pump |
| CN104653145A (en) * | 2013-11-25 | 2015-05-27 | 天津大港油田钻采技术开发公司 | Long-rubber-barrel differential pressure type water filling packer capable of washing well |
| CN205089284U (en) * | 2015-11-17 | 2016-03-16 | 中国石油化工股份有限公司 | Water injection string bottom sand setting single current valve |
| CN206190246U (en) * | 2016-10-17 | 2017-05-24 | 中国石油化工股份有限公司 | Reverse well washing subsides switch |
-
2016
- 2016-10-17 CN CN201610903935.XA patent/CN106437577B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU8405U1 (en) * | 1998-02-03 | 1998-11-16 | Общество с ограниченной ответственностью "Сайма" | IMPLOSION WELL CLEANING DEVICE |
| RU2160825C2 (en) * | 1998-02-03 | 2000-12-20 | Общество с ограниченной ответственностью "Сайма" | Implosive device to clean wells ( versions ) |
| CN101368476A (en) * | 2008-08-29 | 2009-02-18 | 晁建伟 | Injection-production column jacket anti-blocking protection device |
| CN201428428Y (en) * | 2009-06-29 | 2010-03-24 | 吴明涛 | Sand setting type flushing valve |
| CN201786298U (en) * | 2010-08-26 | 2011-04-06 | 吴明涛 | Well flushing valve capable of realizing sand settling |
| CN201963230U (en) * | 2011-03-14 | 2011-09-07 | 仝旭宏 | Water injection well pipe end assembly |
| CN202338239U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Local reverse circulation sand flushing and bailing pump |
| CN104653145A (en) * | 2013-11-25 | 2015-05-27 | 天津大港油田钻采技术开发公司 | Long-rubber-barrel differential pressure type water filling packer capable of washing well |
| CN205089284U (en) * | 2015-11-17 | 2016-03-16 | 中国石油化工股份有限公司 | Water injection string bottom sand setting single current valve |
| CN206190246U (en) * | 2016-10-17 | 2017-05-24 | 中国石油化工股份有限公司 | Reverse well washing subsides switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106437577B (en) | 2023-11-14 |
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