CN208294499U - A kind of normal pressure shale gas water drainage gas production device - Google Patents
A kind of normal pressure shale gas water drainage gas production device Download PDFInfo
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- CN208294499U CN208294499U CN201820806015.0U CN201820806015U CN208294499U CN 208294499 U CN208294499 U CN 208294499U CN 201820806015 U CN201820806015 U CN 201820806015U CN 208294499 U CN208294499 U CN 208294499U
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- oil pipe
- solvable ball
- drain
- normal pressure
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Abstract
The utility model discloses a kind of normal pressure shale gas water drainage gas production devices, belong to shale gas operation field.The utility model includes setting gradually from the bottom up: centralizer, screen casing, sensor, filter, motor, protector, liquid-gas separator, pump, power flat cable, oil pipe, solvable ball sliding sleeve, and solvable ball is later period ground investment.Use electric submersible pump drain the utility model early period, depth of setting is deep, and drain is high-efficient；In the drain later period, using solvable ball sliding sleeve, ground puts into solvable ball, realizes that oil pipe takes liquid continuous production.
Description
Technical field
The utility model relates to shale gas operation fields, and in particular to a kind of normal pressure shale gas water drainage gas production device.
Background technique
Normal pressure shale gas well is required to carry out reservoir reconstruction by extensive hydraulic fracturing at present, due to reservoir pressure coefficient
Low, most wells can not achieve self-spray production after open flow drain, need tripping in electric submersible pump or jet pump using oil pipe drain, casing
Gas production, ideal production capacity could be obtained by further decreasing flowing bottomhole pressure (FBHP).It is found by practice, single electric submersible pump or jet stream pump drainage
Gas production tubing string application after will appear gas lock, formation sand production blocking situations such as, not can effectively solve early period production in occur cannot
The problem of self-spray produces.
Utility model content
The purpose of the utility model is to overcome deficiency in the prior art, provide it is a kind of shale gas well liquid loading early period,
After draining to a certain extent, enable the normal pressure shale gas water drainage gas production device of oil pipe self-spray production.
The technical solution of the utility model is: a kind of normal pressure shale gas water drainage gas production device, including casing is being covered with setting
Oil pipe in pipe, the middle part of oil pipe are equipped with the solvable ball sliding sleeve for accommodating solvable ball, and the lower end of oil pipe connects electric submersible pump, electricity
Latent pump, liquid-gas separator, protector, motor, filter, sensor, screen casing, centralizer are sequentially connected from top to bottom, and are arranged
In casing, motor is connect by power flat cable with ground.
Further technical solution, solvable ball are the solvable magnesium-aluminium alloy material of nanometer.
The utility model has the beneficial effects that
1, the utility model depth of setting is deep, and maximum depth of setting reaches 3000 meters, increases drain depth, to greatest extent
Reduce production stream pressure.
2, in the utility model when electric submersible pump drain, lifting rate is controlled by ground frequency-conversion control cabinet, and drain is high-efficient, day
Maximum lifting rate is more than 100 sides, conducive to the quick row of returning of fracturing fluid, reduces fracturing fluid wound of the immersion to shale reservoir for a long time
Evil.In the drain later period, using solvable ball sliding sleeve, opening sliding sleeve is suppressed in ground pitching, links up oil jacket annulus, and it is continuous to realize that oil pipe takes liquid
Production does not need other auxiliary drain facilities.Wherein, solvable ball uses the solvable magnesium-aluminium alloy material of nanometer, and is added to it
His microelement, there is a good mechanical performance and stable rate of dissolution, solvable ball can with return after drain comes into full contact with one
Dissolution in all does not influence later period survey pressure and measure construction with drain discharge tubing string is returned.
3, the utility model construction technology is simple, and operating cost is low.It realizes in shale gas well liquid loading early period, draining to one
After determining degree, oil pipe can reach self-spray production, to extend the self-spray period of gas well, reduce operating cost, finally realize normal pressure
The Efficient Development of shale gas.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model,
Wherein, 1, centralizer, 2, screen casing, 3, sensor, 4, filter, 5, motor, 6, protector, 7, liquid-gas separator,
8, electric submersible pump, 9, power flat cable, 10, oil pipe, 11, solvable ball sliding sleeve.
Specific embodiment
Below by non-limiting embodiment, the utility model is further described, understands the utility model.
Such as Fig. 1, the utility model is a kind of normal pressure shale gas water drainage gas production device, including casing and is arranged in casing
Oil pipe 10, the middle part of oil pipe 10 are equipped with the solvable ball sliding sleeve 11 for accommodating solvable ball, and 10 lower end of oil pipe connects electric submersible pump 8,
8 lower end of electric submersible pump connects liquid-gas separator 7,7 lower end connection protector 6 of liquid-gas separator, and 6 lower end of protector connects motor 5, electricity
5 lower end of machine connects filter 4, and 4 lower end of filter connects sensor 3, and 3 lower end of sensor connects screen casing 2, the connection of 2 lower end of screen casing
Centralizer 1, power flat cable 9 are pierced by from motor 5 up to christmas tree is pierced by ground, and for the power supply of motor 5, power flat cable 9 connects
It is connected to sensor 3, acquire 3 signal of sensor and is delivered to ground.
The electric submersible pump liquid discharging gas producing stage: enter between oil pipe 10 and casing from the gas-liquid mixture of output in shale reservoir
Oil jacket annulus, gas, which enters after oil jacket annulus, passes through filter 4 into inside device by primary filtration by 2 aperture of screen casing
The impurity such as drop, bridge plug clast are filtered, then by 7 gas-liquid separation of liquid-gas separator, production fluid reaches in ground by the lifting of electric submersible pump 8
Face, shale gas enter ground gas production process by oil jacket annulus；When electric submersible pump drain, lifting rate passes through the control of ground frequency-conversion control cabinet
System, drain is high-efficient, day maximum lifting rate be more than 100 sides, conducive to the quick row of returning of fracturing fluid, reduction fracturing fluid long-time immersion
Injury to shale reservoir.
The self-spray liquid discharging gas producing stage: putting into solvable ball from ground in oil pipe, after ball falls into solvable ball sliding sleeve 11, ground
Clear water suppresses 5-7MPa, opens solvable ball sliding sleeve 11, ditch oil pipe 10 and oil jacket annulus channel, closes casing, gas-liquid mixture
Enter 10 self-spray drain of oil pipe production by the annular channel on solvable ball sliding sleeve 11, gas-liquid mixture reaches ground, into ground
Surface current journey.
Wherein, solvable ball uses the solvable magnesium-aluminium alloy material of nanometer, and is added to other microelements, there is good machine
Tool performance and stable rate of dissolution, solvable ball can with return the dissolution in one week after drain comes into full contact with, with returning drain discharge
Tubing string does not influence later period survey pressure and measure construction.
In conclusion the utility model construction technology is simple, operating cost is low.
Claims (2)
1. a kind of normal pressure shale gas water drainage gas production device, including casing and the oil pipe being arranged in casing, which is characterized in that described
The middle part of oil pipe is equipped with the solvable ball sliding sleeve for accommodating solvable ball, and the lower end of oil pipe connects electric submersible pump, electric submersible pump, the separation of liquid gas
Device, protector, motor, filter, sensor, screen casing, centralizer are sequentially connected from top to bottom, and are arranged in casing, motor
It is connect by power flat cable with ground.
2. a kind of normal pressure shale gas water drainage gas production device according to claim 1, which is characterized in that the solvable ball is to receive
The solvable magnesium-aluminium alloy material of rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820806015.0U CN208294499U (en) | 2018-05-29 | 2018-05-29 | A kind of normal pressure shale gas water drainage gas production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820806015.0U CN208294499U (en) | 2018-05-29 | 2018-05-29 | A kind of normal pressure shale gas water drainage gas production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294499U true CN208294499U (en) | 2018-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820806015.0U Active CN208294499U (en) | 2018-05-29 | 2018-05-29 | A kind of normal pressure shale gas water drainage gas production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939402A (en) * | 2020-01-19 | 2020-03-31 | 中国石油化工股份有限公司 | Jet pump tubular column with intubate bridging plug |
| CN111779469A (en) * | 2020-01-07 | 2020-10-16 | 中国石油化工股份有限公司 | Horizontal well crawler perforating system and method |
-
2018
- 2018-05-29 CN CN201820806015.0U patent/CN208294499U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779469A (en) * | 2020-01-07 | 2020-10-16 | 中国石油化工股份有限公司 | Horizontal well crawler perforating system and method |
| CN110939402A (en) * | 2020-01-19 | 2020-03-31 | 中国石油化工股份有限公司 | Jet pump tubular column with intubate bridging plug |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191113 Address after: 100000 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Oil and gas China Petroleum Chemical Co in East China branch Patentee after: China Petrochemical Co., Ltd. Address before: 408400 Sinopec building, 10 media center, Chongqing South Road, Nanchuan District, Chongqing Patentee before: Pan Jia |