CN109236252A - A kind of injection well downhole flow regulator installation method - Google Patents
A kind of injection well downhole flow regulator installation method Download PDFInfo
- Publication number
- CN109236252A CN109236252A CN201811286029.5A CN201811286029A CN109236252A CN 109236252 A CN109236252 A CN 109236252A CN 201811286029 A CN201811286029 A CN 201811286029A CN 109236252 A CN109236252 A CN 109236252A
- Authority
- CN
- China
- Prior art keywords
- screwed pipe
- flow regulator
- injection well
- plugging
- downhole flow
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a kind of injection well downhole flow regulator installation method, solves the problem of injection well downhole flow regulator structure in the prior art is relative complex, and manufacture and installation are also extremely complex, are not easy to produce, and the cost is relatively high.The present invention includes Step 1: plugging plate to be fixed on to the bottom end of lower screwed pipe, one of plugging block is connected to the bottom end of water distributing core simultaneously, upper seal and lower seal are mounted in water distributing core, water distributing core is inserted into lower screwed pipe until plugging block bottom end fixes another plugging block with the plugging block being mounted in water distributing core from the stretching of the water outlet of plugging plate；Step 2: upper screwed pipe is threadedly coupled with the top of lower screwed pipe.The present invention can simplify installation process, operate in installation process without welding etc., greatly saved manufacture and installation cost.
Description
Technical field
The present invention relates to a kind of installation methods of water injection tool, and in particular to a kind of injection well downhole flow regulator installation method.
Background technique
Mid-late oilfield development forms stratum after producing due to formation oil, and pressure reduction, liquid level can be lower and lower, and pumping is deep
Degree also can be deeper and deeper, when reaching certain depth, some oil fields need to be changed to water injection well.Pumpingh well is improved by filling the water
Then liquid level is extracted out with water-driven oil to oil well with oil well pump.And the thickness and volume of each oil reservoir are different, each layer
Water injection rate is also different, thus installs an injection well downhole flow regulator on each layer, according to the water injection rate that geology design requirement needs injection allocation different,
To produce layering injection well downhole flow regulator.
Existing disclosed layering injection well downhole flow regulator, a kind of water distribution of casing patching well as disclosed in CN201610277227.X
Device can not limit every layer of confluent well, can give simultaneously although the purpose of layering water supply can be realized effectively
Every layer of progress moisturizing, causes water-supplying operation that can not better meet water supply demand.
Moreover, can be realized using other, water distribution quantity is adjusted and the injection well downhole flow regulator of function is cut-off in water distribution, and structure is relative complex, system
It makes and installs extremely complex, be not easy to produce, the cost is relatively high.
Summary of the invention
The technical problems to be solved by the present invention are: injection well downhole flow regulator structure in the prior art is relative complex, manufacture and installation
Also extremely complex, it is not easy to produce, the problem of the cost is relatively high, and it is an object of the present invention to provide a kind of injection well downhole flow regulator installation method, leads to
Reasonable structure design is crossed, simplifies installation process, is operated in installation process without welding etc., greatly saved manufacture and installation
Cost；And the structure energy selectivity after installing gives every layer of progress moisturizing, and every layer of water feed rate and water supply can be effectively controlled
Amount, meets the water supply demand in existing oil field.
The present invention is achieved through the following technical solutions:
A kind of injection well downhole flow regulator installation method, comprising:
Step 1: injection well downhole flow regulator main body is mounted on lower screwed pipe, wherein be provided with outer connection on the side wall of screwed pipe
Hole；Injection well downhole flow regulator main body includes water distributing core, and communication groove, water distribution upper outlet, with underwater outfall, upper seal, lower seal is blocked
Part and plugging plate with water outlet；The closeouts are made of two symmetrical plugging blocks, the tapered structure of plugging block, should
The cone point of plugging block is provided with connector interconnected；
Plugging plate is fixed on to the bottom end of lower screwed pipe, while one of plugging block being connected to the bottom of water distributing core
End, upper seal and lower seal are mounted in water distributing core, and water distributing core is inserted into lower screwed pipe until plugging block bottom end
It is stretched out from the water outlet of plugging plate, another plugging block is fixed with the plugging block being mounted in water distributing core；
Step 2: upper screwed pipe is threadedly coupled with the top of lower screwed pipe.
Further, the adjustable plate with adjustment hole is also equipped on the outer linked hole；The adjustable plate is mounted on waterborne
Between outlet and outer linked hole, and it is fixed on the inner wall of lower screwed pipe.
Further, the adjustment hole is arranged along the circumferential direction of lower screwed pipe (8), and diameter along lower screwed pipe it is circumferential by
It is cumulative to add.
Installation process very simple of the invention has greatly saved manufacture and installation cost without the operation such as welding, imitates
Fruit is very significant.
Mounted structure through the invention can be realized by moving up and down injection well downhole flow regulator main body with liquid in underwater outfall
Outflow whether, and can effectively adjust the size for going out liquid with underwater outlet stream.The present invention may be implemented by rotating left and right
In water distribution upper outlet whether the outflow of liquid, and it can effectively adjust the size of water distribution upper outlet trickle.
Thus, structure through the invention, can selectivity give every layer of progresss moisturizing, and can be effectively controlled every layer to water speed
Degree and confluent, meet the water supply demand in existing oil field.
Further, the plugging block is flared structure, is connected by bolt with gasket seal between two plugging blocks
It is structure as a whole.
Further, rubber sealant is set on the outer surface of the plugging block, and the plugging plate is threadedly attached in
Lower screwed pipe bottom end.
Compared with prior art, the present invention having the following advantages and benefits:
1, installation process very simple of the present invention has greatly saved manufacture and installation cost without the operation such as welding, imitates
Fruit is very significant；
2, the structure after present invention installation, energy selectivity gives every layer of progress moisturizing, and every layer of water supply can be effectively controlled
Speed and confluent meet the water supply demand in existing oil field.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of closeouts in the present invention.
Label and corresponding parts title in attached drawing:
The upper screwed pipe of 1-, 3- water distributing core, 4- communication groove, 5- upper seal, 6- water distribution upper outlet, 7- lower seal, 8-
Lower screwed pipe, 9- match underwater outfall, the outer linked hole of 10-, 11- adjustable plate, 16- closeouts, 17- plugging plate.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
A kind of injection well downhole flow regulator installation method, as Figure 1-Figure 2, comprising:
Step 1: injection well downhole flow regulator main body is mounted on lower screwed pipe 8；
Step 2: upper screwed pipe 1 is threadedly coupled with the top of lower screwed pipe 8.
Wherein, the specific structure of injection well downhole flow regulator main body is as follows:
The injection well downhole flow regulator main body include with lower screwed pipe 8 coaxial arrangement water distributing core 3, be arranged in water distributing core 3 with
The communication groove 4 that upper screwed pipe 1 is connected to, is arranged in the water distribution upper outlet 6 in water distributing core 3 and being located at below communication groove 4, and setting exists
3 bottom end of water distributing core and be connected to lower screwed pipe 8 with underwater outfall 9, be arranged between water distributing core 3 and lower screwed pipe 8 and
Upper seal 5 between water distribution upper outlet 6 and communication groove 4, setting is water distributing core 3 under between screwed pipe 8 and positioned at matching
Lower seal 7 between underwater outfall 9 and water distribution upper outlet 6, and it is mounted on the closeouts 16 with 9 lower section of underwater outfall.
The closeouts 16 are made of two symmetrical plugging blocks, the tapered structure of plugging block, the taper of the plugging block
Tip is provided with connector interconnected.
In above-mentioned steps one, injection well downhole flow regulator main body is mounted on the detailed process on lower screwed pipe 8 are as follows:
Plugging plate 17 is fixed on to the bottom end of lower screwed pipe 8, while one of plugging block is connected to water distributing core 3
Upper seal 5 and lower seal 7 are mounted in water distributing core 3 by bottom end, and water distributing core 3 is inserted into lower screwed pipe 8 until blocking
Block bottom end is stretched out from the water outlet of plugging plate 17, another plugging block is fixed i.e. with the plugging block being mounted in water distributing core 3
Can, as shown in Figure 2.
It is also equipped with adjustable plate 11 in the present embodiment, is specifically provided that
The adjustable plate 11 with adjustment hole is also equipped on the outer linked hole 10；The adjustable plate 11 be mounted on it is waterborne go out
Between mouth 6 and outer linked hole 10, and it is fixed on the inner wall of lower screwed pipe 8.The adjustment hole is set along the circumferential direction of lower screwed pipe 8
It sets, and diameter is gradually increased along the circumferential direction of lower screwed pipe 8.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, the present embodiment has advanced optimized the structure at 16 position of closeouts,
Specifically it is provided that
The plugging block is flared structure, is connected as one knot by bolt and gasket seal between two plugging blocks
Structure, as shown in Figure 2.
Rubber sealant is set on the outer surface of the plugging block, and the plugging plate 17 is threadedly attached in lower screwed pipe
8 bottom ends.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of injection well downhole flow regulator installation method characterized by comprising
Step 1: injection well downhole flow regulator main body is mounted on lower screwed pipe (8), wherein be provided with outer connection on the side wall of screwed pipe (8)
Hole (10), injection well downhole flow regulator main body include water distributing core (3), communication groove (4), water distribution upper outlet (6), with underwater outfall (9), upper sealing
Part (5), lower seal (7), closeouts (16) and the plugging plate (17) with water outlet；The closeouts (16) are mutually right by two
The plugging block of title is constituted, and the tapered structure of plugging block, the cone point of the plugging block is provided with connector interconnected；
Plugging plate (17) is fixed on to the bottom end of lower screwed pipe (8), while one of plugging block is connected to water distributing core (3)
Bottom end, upper seal (5) and lower seal (7) are mounted on water distributing core (3), water distributing core (3) are inserted into lower screw thread
(8) are managed until plugging block bottom end by another plugging block and is mounted on water distributing core (3) from the stretching of the water outlet of plugging plate (17)
On plugging block fix；
Step 2: upper screwed pipe (1) is threadedly coupled with the top of lower screwed pipe (8).
2. a kind of injection well downhole flow regulator installation method according to claim 1, which is characterized in that also pacify on the outer linked hole (10)
Equipped with the adjustable plate (11) with adjustment hole；The adjustable plate (11) is mounted between water distribution upper outlet (6) and outer linked hole (10),
And it is fixed on the inner wall of lower screwed pipe (8).
3. a kind of injection well downhole flow regulator installation method according to claim 2, which is characterized in that the adjustment hole is along lower screwed pipe
(8) circumferential setting, and diameter is gradually increased along the circumferential direction of lower screwed pipe (8).
4. a kind of injection well downhole flow regulator installation method according to claim 1, which is characterized in that the plugging block is tubaeform knot
Structure is connected as one between two plugging blocks by bolt and gasket seal.
5. a kind of injection well downhole flow regulator installation method according to claim 1, which is characterized in that set on the outer surface of the plugging block
Rubber sealant is set, the plugging plate (17) is threadedly attached in lower screwed pipe (8) bottom end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286029.5A CN109236252A (en) | 2018-10-31 | 2018-10-31 | A kind of injection well downhole flow regulator installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286029.5A CN109236252A (en) | 2018-10-31 | 2018-10-31 | A kind of injection well downhole flow regulator installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236252A true CN109236252A (en) | 2019-01-18 |
Family
ID=65079895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286029.5A Pending CN109236252A (en) | 2018-10-31 | 2018-10-31 | A kind of injection well downhole flow regulator installation method |
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| Country | Link |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201574739U (en) * | 2009-12-31 | 2010-09-08 | 贵州航天凯山石油仪器有限公司 | Device for regulating layered waterflooding quantity of hollow well |
| CN103291263A (en) * | 2013-05-24 | 2013-09-11 | 贵州航天凯山石油仪器有限公司 | Method and device for hollow water-distribution flow adjusting |
| CN203655257U (en) * | 2014-01-08 | 2014-06-18 | 肖坤 | Axial cut-off hollow water distribution tubular column |
| CN203822278U (en) * | 2014-05-19 | 2014-09-10 | 中国石油化工股份有限公司 | Casing patch well separated layer water injection device |
| WO2015074126A1 (en) * | 2013-11-22 | 2015-05-28 | Petróleo Brasileiro S.A. - Petrobras | Method for controlling fluid injection rate in deposits and adjustable flow regulator |
| CN105089543A (en) * | 2015-09-02 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal-well water pressure controlling device |
| CN105696987A (en) * | 2016-05-01 | 2016-06-22 | 中国石油化工股份有限公司 | Water distributor for casing patching well |
| CN105756636A (en) * | 2016-05-01 | 2016-07-13 | 徐�明 | Dual-layer injection allocation water distributor for minor-diameter casing pipe patching well |
-
2018
- 2018-10-31 CN CN201811286029.5A patent/CN109236252A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201574739U (en) * | 2009-12-31 | 2010-09-08 | 贵州航天凯山石油仪器有限公司 | Device for regulating layered waterflooding quantity of hollow well |
| CN103291263A (en) * | 2013-05-24 | 2013-09-11 | 贵州航天凯山石油仪器有限公司 | Method and device for hollow water-distribution flow adjusting |
| WO2015074126A1 (en) * | 2013-11-22 | 2015-05-28 | Petróleo Brasileiro S.A. - Petrobras | Method for controlling fluid injection rate in deposits and adjustable flow regulator |
| CN203655257U (en) * | 2014-01-08 | 2014-06-18 | 肖坤 | Axial cut-off hollow water distribution tubular column |
| CN203822278U (en) * | 2014-05-19 | 2014-09-10 | 中国石油化工股份有限公司 | Casing patch well separated layer water injection device |
| CN105089543A (en) * | 2015-09-02 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal-well water pressure controlling device |
| CN105696987A (en) * | 2016-05-01 | 2016-06-22 | 中国石油化工股份有限公司 | Water distributor for casing patching well |
| CN105756636A (en) * | 2016-05-01 | 2016-07-13 | 徐�明 | Dual-layer injection allocation water distributor for minor-diameter casing pipe patching well |
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| PB01 | Publication | ||
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Application publication date: 20190118 |