CN104314496B - A kind of injection well special pulling blanking plug - Google Patents
A kind of injection well special pulling blanking plug Download PDFInfo
- Publication number
- CN104314496B CN104314496B CN201410406484.XA CN201410406484A CN104314496B CN 104314496 B CN104314496 B CN 104314496B CN 201410406484 A CN201410406484 A CN 201410406484A CN 104314496 B CN104314496 B CN 104314496B
- Authority
- CN
- China
- Prior art keywords
- blanking plug
- cylinder
- spool
- injection well
- upper shell
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 241000538562 Banjos Species 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 description 12
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
-
- 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
- E21B33/12—Packers; Plugs
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
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)
- Valve Housings (AREA)
- Sliding Valves (AREA)
Abstract
A kind of injection well special pulling blanking plug, it relates to a kind of pulling blanking plug.The present invention is to solve when existing blanking plug occurs blocking, need to replace whole distributor, have a strong impact on oil recovery efficiency, the problem increasing cost for oil production.One end of cylinder of the present invention is connected with one end of upper shell, upset pin is rotatably provided in the middle part of upper shell, torsion spring set is arranged in upper casing, and torsion spring set is positioned at the side of upset pin, pulling head is inserted on torsion spring set, long compression spring sleeve is contained on pulling head, banjo fixing butt jointing is screwed in the other end of upper shell, lower house is arranged on the other end of cylinder, bearing gland lid is contained on lower house, valve rod sequentially passes through bearing gland and lower house is arranged in cylinder, spool is arranged in being connected on the valve rod in cylinder and with cylinder medial wall, described spool is shuttle-type rod-type spool.The present invention is used for oil exploitation.
Description
Technical field
The present invention relates to a kind of pulling blanking plug, be specifically related to a kind of injection well special pulling blanking plug, belong to valve gate technology neck
Territory.
Background technology
The fixing adjusting means that conventional polymer in injection wells device is off in distributor.Because polymer in injection wells device uses
Be the form that conventional blanking plug is fixed together with eccentric flow regulator, therefore conventional blanking plug the most replaceable, the machine of existence
The drawbacks such as serious sheared by tool.Because the viscosity of polymer is most important for the efficiency recovered the oil in injection well, and polymer
Viscosity is mainly affected by the mechanical shear stress of distributor blanking plug again, and shearing force is the least, and it is the least that polymer viscosity reduces.
The situation of the impurity blocking blanking plugs such as sand is often there is due to the blanking plug of underground work.In this case, if made
With traditional blanking plug, it is necessary to replaced by whole distributor, have a strong impact on oil recovery efficiency, increase cost for oil production.
Summary of the invention
When the invention aims to solve the generation blocking of existing blanking plug, need to replace whole distributor, serious shadow
Ring oil recovery efficiency, the problem increasing cost for oil production.And then a kind of injection well special pulling blanking plug is provided.
The technical scheme is that a kind of injection well special pulling blanking plug include banjo fixing butt jointing, pulling head, long stage clip and
Torsion spring set, described blanking plug also includes overturning pin, upper shell, cylinder, spool, valve rod, lower house and bearing gland, cylinder
One end of body is connected with one end of upper shell, and upset pin is rotatably provided in the middle part of upper shell, and torsion spring set is arranged on upper shell
In, and torsion spring set be positioned at upset pin side, pulling head is inserted on torsion spring set, and long compression spring sleeve is contained on pulling head, docking
Joint is screwed in the other end of upper shell, and lower house is arranged on the other end of cylinder, and bearing gland lid is contained on lower house, valve
Bar sequentially passes through bearing gland and lower house is arranged in cylinder, spool be arranged on the valve rod in cylinder and with in cylinder
Sidewall connects, and described spool is shuttle-type rod-type spool.
The present invention compared with prior art has the effect that
1. pulling head is combined by the special blanking plug of the injection well of the present invention with traditional blanking plug so that when blanking plug runner
When there is blocking, it is not necessary to whole distributor is replaced, and only directly need to be replaced in down-hole by pulling and running tool and break down
Blanking plug so that the efficiency of oil recovery is improved, and the cost simultaneously recovered the oil reduces 30-37%.
2. the present invention uses shuttle-type rod-type spool, compared to traditional circular arc spool, and the most less mechanical shear of spool
Cut effect, it is ensured that the concentration of polymer, thus ensure that the effect of polymer displacement of reservoir oil.
3. the present invention has little to polymer machinery shearing force according to shuttle-type bar and can produce at two ends time polymer flows through shuttle-type bar
The feature of raw obvious pressure difference, it is achieved that the blanking plug that low-shearing force, modification scope are big.Simultaneously as underground work
Often there is the situation of the impurity blocking blanking plugs such as sand in blanking plug.In this case, if using traditional blanking plug,
It is accomplished by replacing whole distributor, has a strong impact on oil recovery efficiency, increase cost for oil production.Present invention employs can the skill of pulling
When art makes to occur blocking, only need to change pulling blanking plug just can solve the problem that problem for we, makes oil recovery become more efficient, warp
Ji.
4. present configuration is simple, with low cost, convenient and practical, flexible operation, be easy to manufacture.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 and present embodiment is described, a kind of injection well special pulling blocking of present embodiment
Device includes banjo fixing butt jointing 1, pulling 2, long stage clip 3 and torsion spring set 4, described blanking plug also include overturn pin 5, upper shell 6,
Cylinder 7, spool 8, valve rod 9, lower house 10 and bearing gland 11, one end of cylinder 7 is connected with one end of upper shell 6,
Upset pin 5 is rotatably provided in the middle part of upper shell 6, and torsion spring set 4 is arranged in upper shell 6, and torsion spring set 4 is positioned at and turns over
Ship and resell on another market 5 side, pulling 2 is inserted on torsion spring set 4, and long stage clip 3 is sleeved in pulling 2, and banjo fixing butt jointing 1 revolves
Being threaded on the other end of housing 6, lower house 10 is arranged on the other end of cylinder 7, and bearing gland 11 lid is contained in lower house 10
On, valve rod 9 sequentially passes through bearing gland 11 and lower house 10 is arranged in cylinder 7, and spool 8 is arranged in cylinder 7
Being connected on interior valve rod 9 and with cylinder 7 medial wall, described spool 8 is shuttle-type rod-type spool.
The shape of cross section of the banjo fixing butt jointing 1 of present embodiment is annulus, and its outside maximum gauge is 22mm.It is easy to existing
Distributor cooperate.
The a diameter of 19.5mm of cylinder 7 of present embodiment.
Present embodiment pulling blanking plug is blanking plug and eccentric flow regulator to be separated design, by butt joint by pulling blanking plug
Dock with eccentric flow regulator.So can ensure that launch-work blanking plug occurs blocking when, can individually carry out blanking plug
Pulling, thus ensure that the efficiency of exploitation, reduce the cost of oil recovery.
The cylinder 7 of present embodiment is provided with rectangular recess near the lateral wall of upper shell 6 side.It is easy to and other component phases
Mutually with the use of, it is ensured that the present invention rotates smoothly.
Detailed description of the invention two: combine Fig. 1 and present embodiment is described, the spool 8 of present embodiment and the medial wall of cylinder 7
Between be threaded connection.It is arranged such, it is simple to dismounting and maintenance.Other composition and annexation and detailed description of the invention one
Identical.
Detailed description of the invention three: combine Fig. 1 and present embodiment is described, the spool 8 of present embodiment include union joint 8-1 and
Multiple shuttle-type block 8-2, multiple shuttle-type block 8-2 are fixedly connected sequentially, and union joint 8-1 is fixedly installed on multiple shuttle-type block 8-2's
One end, described union joint 8-1 and multiple shuttle-type block 8-2 are formed integrally.The quantity of multiple shuttle-type block 8-2 is 4-12, excellent
Selecting quantity is 6,8.It is arranged such, it is simple to keep off the diverse location of two gateways 14 according to shuttle-type block 8-2 and realize
Control to polymer flow rate.Other composition is identical with detailed description of the invention one or two with annexation.
Detailed description of the invention four: combine Fig. 1 and present embodiment is described, passes through between spool 8 and the valve rod 9 of present embodiment
Threaded.It is arranged such, it is simple to dismounting and maintenance.Other composition and annexation and detailed description of the invention one, two or three
Identical.
Detailed description of the invention five: combine Fig. 1 and present embodiment is described, the excircle of the lower house 10 of present embodiment is provided with
Rectangular channel 10-1.It is arranged such, it is simple to be connected with other components on distributor.Other composition and annexation are real with concrete
Execute mode one, two, three or four identical.
Detailed description of the invention six: combining Fig. 1 and present embodiment is described, the blanking plug of present embodiment also includes thrust bearing 12
It is embedded in lower house 10 bottom the most successively with radial bearing 13, thrust bearing 12 and radial bearing 13 and is sleeved on valve
On bar 9.It is arranged such so that whole blanking plug rotates more smooth and easy, flexible.Other composition and annexation are real with concrete
Execute mode one to five identical.
Detailed description of the invention seven: combine Fig. 1 and present embodiment is described, the cylinder 7 of present embodiment is provided with two gateways
14.It is arranged such, it is simple to ensure that the flow of polymer meets the requirements.Other composition and annexation and detailed description of the invention one
Identical to six.
The operation principle of the present invention is:
Pulling 2 and traditional blanking plug are combined by injection well special pulling blanking plug, use existing pulling and running tool i.e.
Can realize and the combination of special pulling blanking plug, and then realize pulling.Then valve is driven by regulation motor inside blanking plug
Bar 9, and then band movable valve plug 8, change joint number (each shuttle-type block 8-2 of the spool multiple shuttle-type block 8-2 between importing and exporting
It is a joint number).And the change of spool joint number, the pressure difference between importing and exporting can be made to change, and then change poly-
The injection rate of compound, spool length between importing and exporting is the longest, and joint number is the most, and the pressure difference between import and export is the biggest, stream
Measure the least.Thus realize the control of polymer flow rate.
Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, those skilled in the art
Other changes can also be done in spirit of the present invention, and be applied in the NM field of the present invention, certainly, these foundations
The change that present invention spirit is done all should be included in scope of the present invention.
Claims (7)
1. an injection well special pulling blanking plug, it includes banjo fixing butt jointing (1), pulling head (2), long stage clip (3) and turns round
Spring set (4), it is characterised in that: described blanking plug also include upset pin (5), upper shell (6), cylinder (7), spool (8),
Valve rod (9), lower house (10) and bearing gland (11), one end of cylinder (7) is connected with one end of upper shell (6),
Upset pin (5) is rotatably provided in the middle part of upper shell (6), and torsion spring set (4) is arranged in upper shell (6), and torsion spring
Set (4) is positioned at the side of upset pin (5), and pulling head (2) is inserted on torsion spring set (4), and long stage clip (3) is sleeved on throwing
Dragging on head (2), banjo fixing butt jointing (1) is screwed in the other end of upper shell (6), and lower house (10) is arranged on cylinder (7)
The other end, bearing gland (11) lid be contained on lower house (10), valve rod (9) sequentially pass through bearing gland (11) and under
Housing (10) is arranged in cylinder (7), and spool (8) is arranged on the valve rod (9) in cylinder (7) and and cylinder
(7) medial wall connects, and described spool (8) is shuttle-type rod-type spool.
A kind of injection well special pulling blanking plug, it is characterised in that: described spool (8) and cylinder
It is threaded connection between the medial wall of body (7).
A kind of injection well special pulling blanking plug, it is characterised in that: described spool (8) includes
Union joint (8-1) and multiple shuttle-type block (8-2), multiple shuttle-type blocks (8-2) are fixedly connected sequentially, and union joint (8-1) is solid
Surely it is arranged on one end of multiple shuttle-type block (8-2), described union joint (8-1) and multiple shuttle-type block (8-2) to be formed integrally.
4. according to injection well special pulling blanking plug a kind of described in claim 1 or 3, it is characterised in that: described spool (8)
And valve rod is threaded connection between (9).
A kind of injection well special pulling blanking plug, it is characterised in that: described lower house (10)
Excircle is provided with rectangular channel (10-1).
6. according to injection well special pulling blanking plug a kind of described in claim 1 or 5, it is characterised in that: described blanking plug also wraps
Include thrust bearing (12) and radial bearing (13), thrust bearing (12) and radial bearing (13) the most embedded
In lower house (10) bottom and be sleeved on valve rod (9).
A kind of injection well special pulling blanking plug, it is characterised in that: described cylinder sets on (7)
There are two gateways (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406484.XA CN104314496B (en) | 2014-08-18 | 2014-08-18 | A kind of injection well special pulling blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406484.XA CN104314496B (en) | 2014-08-18 | 2014-08-18 | A kind of injection well special pulling blanking plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104314496A CN104314496A (en) | 2015-01-28 |
| CN104314496B true CN104314496B (en) | 2016-10-05 |
Family
ID=52369792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410406484.XA Active CN104314496B (en) | 2014-08-18 | 2014-08-18 | A kind of injection well special pulling blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314496B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878029B (en) * | 2020-09-10 | 2022-04-08 | 天津市顺泽采油设备有限公司 | Oil recovery injection allocation operation is with dragging for blanking plug |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408662A (en) * | 1981-07-27 | 1983-10-11 | Sooner Oil Tools, Inc. | Retrievable packer for oil well casing |
| CN201025017Y (en) * | 2007-03-29 | 2008-02-20 | 大庆油田有限责任公司 | Drive convergence injection well eccentric blocker |
| CN201391299Y (en) * | 2009-03-28 | 2010-01-27 | 狄旭庆 | Injected polymer bridge type eccentric injection distribution device |
| CN201747320U (en) * | 2010-08-06 | 2011-02-16 | 董力维 | Polymer-flooding adjustable blanking plug |
| CN103306649A (en) * | 2013-07-02 | 2013-09-18 | 哈尔滨工业大学 | Blocking type electric control continuous adjustable injection allocation device for overflow polymer injection well |
-
2014
- 2014-08-18 CN CN201410406484.XA patent/CN104314496B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408662A (en) * | 1981-07-27 | 1983-10-11 | Sooner Oil Tools, Inc. | Retrievable packer for oil well casing |
| CN201025017Y (en) * | 2007-03-29 | 2008-02-20 | 大庆油田有限责任公司 | Drive convergence injection well eccentric blocker |
| CN201391299Y (en) * | 2009-03-28 | 2010-01-27 | 狄旭庆 | Injected polymer bridge type eccentric injection distribution device |
| CN201747320U (en) * | 2010-08-06 | 2011-02-16 | 董力维 | Polymer-flooding adjustable blanking plug |
| CN103306649A (en) * | 2013-07-02 | 2013-09-18 | 哈尔滨工业大学 | Blocking type electric control continuous adjustable injection allocation device for overflow polymer injection well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104314496A (en) | 2015-01-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |