CN208267830U - A kind of oil field well is just setting electric pump pressurized water injection process pipe string - Google Patents
A kind of oil field well is just setting electric pump pressurized water injection process pipe string Download PDFInfo
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- CN208267830U CN208267830U CN201820677807.2U CN201820677807U CN208267830U CN 208267830 U CN208267830 U CN 208267830U CN 201820677807 U CN201820677807 U CN 201820677807U CN 208267830 U CN208267830 U CN 208267830U
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Abstract
The utility model discloses a kind of oil field wells just to set electric pump pressurized water injection process pipe string, it is hung including double-wellhead production tree tubing hanger and double-wellhead Christmas tree casing, water storage casing connected to it is equipped in the lower section that double-wellhead Christmas tree casing is hung, the lower end of water storage casing is connect by positioning insertion sealing with seal operation cylinder, sequentially connected water-filling oil pipe from top to bottom is equipped in water storage casing, Y-shaped connector and bypass oil pipe, the lower end of bypass oil pipe passes through positioning insertion sealing and protrudes into seal operation cylinder, it bypasses oil pipe and water storage casing is affixed, the safety valve being located in water storage casing is equipped on bypass oil pipe, the electric pump unit just set is connected on Y-shaped connector, water-filling oil pipe is connected to below double-wellhead production tree tubing hanger, hydraulic control sliding sleeve in top is connected on water-filling oil pipe, launching in water-filling oil pipe has lock core blanking plug, lock core blanking plug Between top hydraulic control sliding sleeve and Y-shaped connector.The utility model can be realized downhole pressure increasing water filling.
Description
Technical field
The utility model relates to oil field well process pipe string, especially a kind of oil field well is just setting electric pump pressurized water injection technique
Tubing string.
Background technique
Oil well in process of production, the water injection rate of water injection well whether can reach oil reservoir requirement with fluence, for producing well
Can yield up to standard play particularly important effect.
Currently, Bohai Sea Area offshore oilfield water injection well generallys use two kinds of process pipe strings of seperated layer water injection and commingled water injection, it
Common ground be: water flooding or water source well water are passed through wellhead slurry pump pressurization injection by the tripping in plain tubing in water injection well
Destination layer position.And such water injection technology when injection pressure increase after due to the energy power limit by wellhead equipment, the later period can not infuse
Enter or be unable to reach injection allocation requirement.Therefore make injection allocation stratum energy in debt, waterflooding effect decline seriously affects oilfield producing well production
Amount.
Summary of the invention
The utility model is to solve technical problem present in well-known technique and provide a kind of oil field well and just setting electric pump increasing
Water injection technological string is pressed, which can be realized downhole pressure increasing water filling.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique: a kind of oil well
Under just setting electric pump pressurized water injection process pipe string, including double-wellhead production tree tubing hanger and double-wellhead Christmas tree casing are hung, described
The lower section that double-wellhead Christmas tree casing is hung is equipped with water storage casing connected to it, and the lower end of the water storage casing passes through positioning insertion
Sealing is connect with seal operation cylinder, and sequentially connected water-filling oil pipe, Y-shaped connector and side from top to bottom are equipped in the water storage casing
Oil pipe, the lower end of the bypass oil pipe pass through positioning insertion sealing and protrude into the seal operation cylinder, the bypass oil pipe
It is affixed with the water storage casing, it is equipped with the safety valve being located in the water storage casing on the bypass oil pipe, in the Y-shaped connector
On be connected with the electric pump unit just set, the water-filling oil pipe is connected to below the double-wellhead production tree tubing hanger, described
Hydraulic control sliding sleeve in top is connected on water-filling oil pipe, launching in the water-filling oil pipe has lock core blanking plug, the lock core blanking plug
Between the top hydraulic control sliding sleeve and the Y-shaped connector.
The lower part hydraulic control sliding sleeve being located in the water storage casing, the lower part hydraulic control sliding sleeve are equipped on the bypass oil pipe
Positioned at the top of the safety valve.
The bypass oil pipe is fixed on the inner wall of the water storage casing by hydraulic anchor.
The utility model has the advantages and positive effects of: by using in water storage casing be arranged water-filling oil pipe and with
The structure of its bypass oil pipe and electric pump unit for connecting pressurize in well using electric pump unit when carrying out water injection work, can
After charging the phase, after pressure rise, to continue to increase injection pressure, realize that underground increases in the case where not increasing wellhead equipment
Pressure injection water supplements formation depletion, promotes stratum energy to meet water injection well in oil fields water filling layer position injection allocation requirement；Without changing
Existing completion tubular column structure, is not take up platform existing space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, double-wellhead production tree tubing hanger；2, double-wellhead Christmas tree casing is hung；3, top hydraulic control sliding sleeve；4, Y connects
Head；5, oil pipe is bypassed；6, hydraulic anchor；7, safety valve；8, water storage casing；9, lock core blanking plug；10, water-filling oil pipe；11, electric pump machine
Group；12, lower part hydraulic control sliding sleeve；13, positioning insertion sealing；14, seal operation cylinder.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
Referring to Fig. 1, a kind of oil field well is just setting electric pump pressurized water injection process pipe string, including double-wellhead production tree tubing hanger
1 and double-wellhead Christmas tree casing hang 2, the double-wellhead Christmas tree casing hang 2 lower section be equipped with water storage casing connected to it
8, the lower end of the water storage casing 8 is connect by positioning insertion sealing 13 with seal operation cylinder 14, is set in the water storage casing 8
There are sequentially connected water-filling oil pipe 10, Y-shaped connector 4 and bypass oil pipe 5 from top to bottom, the lower end of the bypass oil pipe 5 passes through described
The seal operation cylinder 14 is protruded into positioning insertion sealing 13, and the bypass oil pipe 5 and the water storage casing 8 are affixed, on the side
Oil pipe 5 is equipped with the safety valve 7 being located in the water storage casing 8, is connected with the electric pump unit just set on the Y-shaped connector 4
11, the water-filling oil pipe 10 is connected to below the double-wellhead production tree tubing hanger 1, is connected on the water-filling oil pipe 10
Top hydraulic control sliding sleeve 3, launching in the water-filling oil pipe 10 has lock core blanking plug 9, and the lock core blanking plug 9 is located at the top
Between hydraulic control sliding sleeve 3 and the Y-shaped connector 4.
In the present embodiment, it in order to facilitate the cleaning of tubing string, is equipped on the bypass oil pipe 5 and is located at the water storage casing
Lower part hydraulic control sliding sleeve 12 in 8, the lower part hydraulic control sliding sleeve 12 are located at the top of the safety valve 7.For the ease of bypassing oil pipe
Fixation, the bypass oil pipe 5 is fixed on the inner wall of the water storage casing 8 by hydraulic anchor 6.
Working principle of the utility model is:
When water filling, double-wellhead production tree oil pipe flutter valve is opened, opens top hydraulic control sliding sleeve 3, closes lower part hydraulic control sliding sleeve 12,
It injects water to flow by water-filling oil pipe 10, be flowed out from the apopore of top hydraulic control sliding sleeve 3, into water storage casing 8.In water storage casing
Water in 8 flows into Y-shaped connector 4 after the pressurization of electric pump unit 11, injects oil reservoir by bypass oil pipe 5.
When carrying out cleaning operation, lock core blanking plug 9 is pulled out first, open lower part hydraulic control sliding sleeve 12, close top
Then hydraulic control sliding sleeve 3 opens double-wellhead Christmas tree casing flutter valve, detergent remover is injected by water storage casing 8, and it is sliding to flow into lower part hydraulic control
Set 12 flows into water-filling oil pipe 10 by bypass oil pipe 5 and Y-shaped connector 4, flows out by oil pipe flutter valve.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
Under ambit, many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (3)
1. a kind of oil field well is just setting electric pump pressurized water injection process pipe string, which is characterized in that including double-wellhead production tree tubing hanger
It is hung with double-wellhead Christmas tree casing, is equipped with water storage casing connected to it, institute in the lower section that the double-wellhead Christmas tree casing is hung
The lower end for stating water storage casing is connect by positioning insertion sealing with seal operation cylinder, is equipped with from top to bottom in the water storage casing
Sequentially connected water-filling oil pipe, Y-shaped connector and bypass oil pipe, the lower end of the bypass oil pipe pass through positioning insertion sealing and protrude into
The seal operation cylinder, the bypass oil pipe and the water storage casing are affixed, are equipped on the bypass oil pipe and are located at the storage
Safety valve in jacket pipe, is connected with the electric pump unit just set on the Y-shaped connector, and the water-filling oil pipe is connected to the twin-well
Below mouth production tree tubing hanger, it is connected with hydraulic control sliding sleeve in top on the water-filling oil pipe, is launched in the water-filling oil pipe
There is lock core blanking plug, the lock core blanking plug is between the top hydraulic control sliding sleeve and the Y-shaped connector.
2. oil field well according to claim 1 is just setting electric pump pressurized water injection process pipe string, which is characterized in that on the side
Oil pipe is equipped with the lower part hydraulic control sliding sleeve being located in the water storage casing, and the lower part hydraulic control sliding sleeve is located at the safety valve
Top.
3. oil field well according to claim 1 is just setting electric pump pressurized water injection process pipe string, which is characterized in that the bypass
Oil pipe is fixed on the inner wall of the water storage casing by hydraulic anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677807.2U CN208267830U (en) | 2018-05-08 | 2018-05-08 | A kind of oil field well is just setting electric pump pressurized water injection process pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677807.2U CN208267830U (en) | 2018-05-08 | 2018-05-08 | A kind of oil field well is just setting electric pump pressurized water injection process pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267830U true CN208267830U (en) | 2018-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820677807.2U Active CN208267830U (en) | 2018-05-08 | 2018-05-08 | A kind of oil field well is just setting electric pump pressurized water injection process pipe string |
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| CN (1) | CN208267830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379538A (en) * | 2020-03-18 | 2020-07-07 | 中国海洋石油集团有限公司 | Method for verifying opening degree of underground hydraulic control sliding sleeve suitable for intelligent well completion |
-
2018
- 2018-05-08 CN CN201820677807.2U patent/CN208267830U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379538A (en) * | 2020-03-18 | 2020-07-07 | 中国海洋石油集团有限公司 | Method for verifying opening degree of underground hydraulic control sliding sleeve suitable for intelligent well completion |
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