CN111042780A - An integrated horizontal well huff and puff staged water injection intelligent water distribution device and method - Google Patents
An integrated horizontal well huff and puff staged water injection intelligent water distribution device and method Download PDFInfo
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- CN111042780A CN111042780A CN201911316069.4A CN201911316069A CN111042780A CN 111042780 A CN111042780 A CN 111042780A CN 201911316069 A CN201911316069 A CN 201911316069A CN 111042780 A CN111042780 A CN 111042780A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 112
- 238000002347 injection Methods 0.000 title abstract description 53
- 239000007924 injection Substances 0.000 title abstract description 53
- 238000009826 distribution Methods 0.000 title abstract description 27
- 238000000034 method Methods 0.000 title abstract description 21
- 238000004891 communication Methods 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 9
- 238000011161 development Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 12
- 230000033228 biological regulation Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- 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
- 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
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
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Abstract
本发明公开了一种集成式水平井吞吐分段注水智能配水装置及方法，包括外壳及设置于外壳内部的注水通道，所述外壳和注水通道之间的环空内设有控制系统，所述控制系统包括设置在环空上部的无线通信模块和主控单元，环空中下部设有与注水通道连通的流量计入水口，流量计入水口下方的环空内设有涡街流量计，该涡街流量计下方环空内设有与注水通道连通的流量计出水口，在流量计入水口与涡街流量计之间为调节腔体。本发明能够提高水平井分段注水吞吐工艺成功率，提高致密油水平井吞吐开发效果，实现稳油控水。
The invention discloses an integrated horizontal well huff and puff segmented water injection intelligent water distribution device and method, comprising a casing and a water injection channel arranged inside the casing, a control system is arranged in the annular space between the casing and the water injection channel, and the The control system includes a wireless communication module and a main control unit arranged in the upper part of the annulus, the lower part of the annulus is provided with a flow meter water inlet which is connected with the water injection channel, and a vortex flowmeter is arranged in the annulus below the water inlet of the flow meter. There is a flowmeter water outlet connected with the water injection channel in the annular space below the street flowmeter, and a regulating cavity is formed between the flowmeter water inlet and the vortex flowmeter. The invention can improve the success rate of the horizontal well staged water injection huff and puff process, improve the tight oil horizontal well huff and puff development effect, and realize oil stabilization and water control.
Description
Technical Field
The invention belongs to the technical field of oilfield separate layer water injection development, and particularly relates to an integrated horizontal well huff-puff sectional water injection intelligent water distribution device and method.
Background
Some oil field compact oil has the characteristics of strong reservoir heterogeneity, low formation pressure, insufficient natural energy and the like, and the water absorption profile test result shows that the profile contradiction is prominent, the water absorption in intervals is uneven and the like. In order to explore a reasonable energy supplement mode of compact oil, a multi-section separate injection development mode is provided on an oil reservoir, a horizontal well huff-puff multi-section separate injection test is developed, an integrated horizontal well huff-puff sectional water injection intelligent water distribution device is developed, and functions of automatic underground layered flow measurement and regulation, no need of measurement and regulation in the later period, real-time storage of production data (flow, temperature and pressure) and the like are achieved preliminarily.
However, the problem of blockage during the process of lowering the well exists in the field construction process by adopting the existing horizontal well water distributor for handling, and the analysis reason is mainly caused by the fact that the existing water distributor is long in length (1550 mm in the length of the whole machine) and large in outer diameter (114 mm). Particularly, when the water distribution device is long in size and large in outer diameter near a horizontal well deflecting point, the process success rate is low due to the fact that the passing rate of tools is reduced under the influence of curvature radius.
Disclosure of Invention
The invention aims to provide an integrated horizontal well huff-puff sectional water injection intelligent water distribution device and method, which solve the problem of blockage during the process of lowering the well by using the existing water distribution device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an integrated horizontal well huff and puff sectional water injection intelligent water distribution device comprises a shell and a water injection channel arranged in the shell, wherein a control system is arranged in an annulus between the shell and the water injection channel, the control system comprises a wireless communication module which is arranged at the upper part of the annulus and is used for realizing parameter setting and data transmission between the intelligent water distribution device and a ground controller in a wireless communication mode, and a main control unit for realizing parameter measurement and storage, flow regulation and control and well closing and pressure building function regulation and control, a flowmeter water inlet which is communicated with the water injection channel is arranged at the middle lower part of the annulus, a vortex shedding flowmeter is arranged in the annulus below the flowmeter water inlet, a flowmeter water outlet which is communicated with the water injection channel is arranged in the annulus below the vortex shedding flowmeter, and a regulation cavity is arranged between the flowmeter water inlet;
the annular space lower part that the radial opposite face in flowmeter water inlet position was equipped with flow control valve, and flow control valve top is equipped with the delivery port with the shell intercommunication, the last transmission shaft that is connected with of flow control valve, the transmission shaft other end is connected with the motor circuit board.
Furthermore, a motor cavity for protecting the direct current motor for controlling the rotation of the transmission shaft, a circuit board cavity for protecting a control circuit for controlling the adjustment action of the direct current motor, monitoring and storing downhole parameters and a transmission cavity for protecting the transmission shaft are arranged on the motor circuit board.
Further, a temperature sensor and a pressure sensor are arranged in the cavity of the circuit board, and the motor circuit board, the wireless communication module, the temperature sensor and the pressure sensor are respectively and electrically connected with the main control unit.
Further, motor circuit board upside is provided with the group battery for main control unit, wireless communication module, motor circuit board and temperature sensor and pressure sensor power supply, the main control unit is connected with the group battery electricity.
During water injection, water quality is injected from a water injection channel, flows through a vortex flow meter through a water inlet of the flow meter, flows out of a water outlet of the flow meter, flows to a flow regulating valve through an annulus, and flows out of a shaft and a stratum through a water outlet, during the water injection, the layered flow, the pressure and the temperature of the stored stratum are monitored in real time through the vortex flow meter, a temperature sensor and a pressure sensor, the layered flow is compared with target injection allocation parameters of each layer section by monitoring the layered flow of the stratum, and the opening degree of the water outlet of the flow meter is adjusted by controlling a motor to adjust the flow regulating valve through a control system, so that the target water injection amount of each layer section is ensured; the formation flow, pressure and temperature are stored and then played back on the ground, so that digital technical support is provided for oilfield development.
Compared with the prior art, the invention has the following beneficial technical effects:
the integrated horizontal well huff-and-puff sectional water injection intelligent water distribution device can monitor and store underground sectional water injection production data (flow, temperature and pressure) in real time, and can reduce the resistivity of the integrated horizontal well huff-and-puff sectional water injection intelligent water distribution device in the process of descending the well and improve the success rate of horizontal well sectional huff-and-puff process construction while automatically measuring and adjusting the layered flow underground, thereby greatly improving the horizontal well huff-and-puff effect. By reducing the outer diameter of the integrated horizontal well sectional water injection intelligent water distribution device, the resistance rate in the process of descending the well is reduced, the success rate of horizontal well sectional water injection process construction is greatly improved, and the water injection effect of the horizontal well is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an integrated horizontal well huff and puff sectional water injection intelligent water distribution device;
fig. 2 is a schematic cross-sectional view of the motor circuit board unit.
Wherein: 1. a wireless communication module; 2. a main control unit; 3. a temperature sensor and a pressure sensor; 4. a flow meter water inlet; 5. adjusting the cavity; 6. a vortex shedding flowmeter; 7. a water outlet of the flowmeter; 8. a battery pack; 9. a motor circuit board unit; 10. a drive shaft; 11. a water outlet; 12. a flow regulating valve; 13. a housing; 14 annular space; 15. a water injection channel; 16. a motor cavity; 17. a transmission cavity; 18. the circuit board cavity.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, the integrated horizontal well huff and puff sectional water injection intelligent water distribution device comprises a shell 13 and a water injection channel 15 arranged inside the shell 13, wherein a control system is arranged in an annulus 14 between the shell 13 and the water injection channel 15, a wireless communication module 1 and a main control unit 2 are arranged at the upper part of the annulus 14, a flowmeter water inlet 4 communicated with the water injection channel 15 is arranged at the middle lower part of the annulus 14, a vortex shedding flowmeter 6 is arranged in the annulus 14 below the flowmeter water inlet 4, and a flowmeter water outlet 7 communicated with the water injection channel 15 is arranged in the annulus 14 below the vortex shedding flowmeter 6. An adjusting cavity 5 is arranged between a flowmeter water inlet 4 and a vortex flowmeter 6, and the size and the length of the water distribution device can be adjusted on the premise of meeting the connection space of each component; a flow regulating valve 12 is arranged at the lower part in an annular space 14 which is opposite to the radial direction of the position of a water inlet 4 of the flowmeter, a water outlet 11 communicated with a shell 13 is arranged above the flow regulating valve 12, the flow regulating valve 12 is connected with a transmission shaft 10, the other end of the transmission shaft 10 is connected with a motor circuit board 9, the cavity of the circuit board 9 is changed into 2 kidney-shaped holes of the device from the original 3 kidney-shaped holes, and the outer diameter of the water distribution device is reduced on the premise of meeting the power supply function; the control system comprises a wireless communication module 1, a battery pack 8, a main control unit 2, a temperature sensor and a pressure sensor 3, wherein a motor circuit board 9, the wireless communication module 1, the temperature sensor and the pressure sensor 3 are respectively electrically connected with the main control unit 2, and the main control unit 2 is electrically connected with the battery pack 8.
The present invention is described in detail below with reference to examples:
the embodiment provides an integrated horizontal well huff and puff segmentation water injection intelligent water distribution device as shown in fig. 1, which comprises a shell 13 and a water injection channel 15 arranged inside the shell 13, wherein a control system is arranged in an annulus 14 between the shell 13 and the water injection channel 15, the upper part of the annulus 14 is provided with a wireless communication module 1 and a main control unit 2, the middle lower part of the annulus is provided with a flowmeter water inlet 4 communicated with the water injection channel 15, a vortex shedding flowmeter 6 is arranged in the annulus 14 below the flowmeter water inlet 4, and a flowmeter water outlet 7 communicated with the water injection channel 15 is arranged in the annulus 14 below the vortex shedding flowmeter 6. Be equipped with between flowmeter water inlet 4 and vortex flowmeter 6 and adjust cavity 5, through carrying out optimal design to vortex flowmeter, increase and adjust cavity 5, reduce vortex flowmeter's whole length under the condition that satisfies vortex flowmeter normal use to reduce adjustable water distribution device's size length under the prerequisite that satisfies each components and parts linkage space.
The lower part in the annular space 14 with flowmeter water inlet 4 position radial opposite is equipped with flow control valve 12, and flow control valve 12 top is equipped with the communicating delivery port 11 with shell 13, flow control valve 12 is connected with transmission shaft 10, and the transmission shaft 10 other end is connected with motor circuit board 9, through the optimization to control circuit, makes control system modularization, reduces control circuit size and occupation space to make motor circuit board 9 cavity change 2 waist type holes of this device into by 3 original waist type holes, under the prerequisite that satisfies the power supply function, reduced water distribution device external diameter.
The control system comprises a wireless communication module 1, a battery pack 8, a main control unit 2, a temperature sensor and a pressure sensor 3, wherein a motor circuit board 9, the wireless communication module 1, the temperature sensor and the pressure sensor 3 are respectively electrically connected with the main control unit 2, and the main control unit 2 is electrically connected with the battery pack 8.
As shown in fig. 1, during water injection, water is injected from a water injection channel 15, flows through a vortex flowmeter 6 through a flowmeter water inlet 4, flows out from a flowmeter water outlet 11, flows to a flow regulating valve 12 through an intelligent water distribution device annular 14 flow channel, and flows out to a shaft and a stratum through the water outlet 11. In the water injection process, monitored flow parameters are fed back to the control circuit in real time through wireless induction of components such as a vortex flowmeter, pressure and temperature, and compared with set flow target parameters, so that the control circuit controls the motor to control the opening of a valve port of the flow regulating valve through the transmission system, and the water injection amount of each layer section is ensured to be consistent with the target injection allocation amount. Thereby ensuring the required water injection amount of each layer section. The layered flow, pressure, temperature and the like of the stored stratum are monitored in real time, and the digital technical support is provided for oilfield development through subsequent ground playback. In the process of going down to the well, the upper end and the lower end of the integrated horizontal well huff-puff sectional water injection intelligent water distribution device are connected with an oil pipe short circuit and an underground tool string to form an oil pipe string.
On the basis of the former water distribution device, the vortex shedding flowmeter is optimally designed, and the internal adjusting cavity 5 is shortened on the premise of meeting the normal use of the vortex shedding flowmeter, so that the length of the integrated horizontal well huff and puff sectional water injection intelligent water distribution device is shortened from 1550mm to 1335mm at present. Through the optimization to the control circuit, make control system modularization, reduce control circuit size and occupation space to after motor circuit board 9 optimal design, reduce to 2 waist type holes by original 3 waist type holes, the water distribution device external diameter is reduced to present 110mm by original 114 mm. 2 wells are tested on site, the tool passing rate in the construction process is greatly improved compared with the prior art, and the process success rate is effectively improved.
In conclusion, the integrated horizontal well huff and puff sectional water injection intelligent water distribution device can monitor and store underground sectional water injection production data (flow, temperature and pressure) and layered flow underground automatic measurement and adjustment in real time, and meanwhile, the resistivity of the integrated horizontal well huff and puff sectional water injection intelligent water distribution device in the process of descending the well is reduced, the success rate of horizontal well sectional huff and puff process construction is improved, and therefore the horizontal well huff and puff effect is greatly improved.
The above embodiments are not described in detail, and the methods and structures are not part of the common general knowledge in the industry. The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (5)
1. An integrated horizontal well huff and puff sectional water injection intelligent water distribution device is characterized by comprising a shell (13) and a water injection channel (15) arranged inside the shell (13), wherein a control system is arranged in an annulus (14) between the shell (13) and the water injection channel (15), the control system comprises a wireless communication module (1) arranged at the upper part of the annulus (14) and used for realizing parameter setting and data transmission between the intelligent water distribution device and a ground controller in a wireless communication mode and a main control unit (2) used for realizing parameter measurement and storage, flow regulation and control and well shut-in pressure-out function regulation and control, a flowmeter water inlet (4) communicated with the water injection channel (15) is arranged at the middle lower part of the annulus (14), a vortex flowmeter (6) is arranged in the annulus (14) below the flowmeter water inlet (4), a flowmeter water outlet (7) communicated with the water injection channel (15) is arranged in the annulus (14) below the vortex flowmeter (6), an adjusting cavity (5) is arranged between the flowmeter water inlet (4) and the vortex flowmeter (6);
the annular space (14) lower part that the radial opposite face in position of flowmeter water inlet (4) place is equipped with flow control valve (12), and flow control valve (12) top is equipped with delivery port (11) with shell (13) intercommunication, be connected with transmission shaft (10) on flow control valve (12), the transmission shaft (10) other end is connected with motor circuit board (9).
2. The intelligent water distribution device for the integrated horizontal well huff and puff segmented water injection according to claim 1, wherein a motor cavity (16) for protecting a direct current motor controlling the rotation of the transmission shaft (10), a circuit board cavity (17) for protecting a control circuit controlling the adjustment of the direct current motor and monitoring and storing downhole parameters, and a transmission cavity (18) for protecting and placing the transmission shaft are arranged on the motor circuit board (9).
3. The integrated horizontal well huff and puff sectional water injection intelligent water distribution device according to claim 2, wherein a temperature sensor and a pressure sensor (3) are arranged in the circuit board cavity (17), and the motor circuit board (9), the wireless communication module (1), the temperature sensor and the pressure sensor (3) are respectively and electrically connected with the main control unit (2).
4. The integrated horizontal well throughput segmented water injection intelligent water distribution device is characterized in that a battery pack (8) for supplying power to a main control unit (2), a wireless communication module (1), a motor circuit board (9), a temperature sensor and a pressure sensor (3) is arranged on the upper side of the motor circuit board (9), and the main control unit (2) is electrically connected with the battery pack (8).
5. An integrated horizontal well throughput segmented water injection intelligent water distribution method is characterized in that during water injection, water is injected from a water injection channel (15), flows through a vortex flowmeter (6) through a flowmeter water inlet (4), flows out from a flowmeter water outlet (7), flows to a flow control valve (12) through an annular space (14), flows to a shaft and a stratum through a water outlet (11), and adjusts the opening degree of the water outlet (11) through adjusting the flow control valve (12) so as to ensure the target water injection amount of each layer section, and during the water injection process, the flow rate, the pressure and the temperature of the stratum layer are monitored and stored in real time through the vortex flowmeter (6), a temperature sensor and a pressure sensor (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911316069.4A CN111042780A (en) | 2019-12-19 | 2019-12-19 | An integrated horizontal well huff and puff staged water injection intelligent water distribution device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911316069.4A CN111042780A (en) | 2019-12-19 | 2019-12-19 | An integrated horizontal well huff and puff staged water injection intelligent water distribution device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201902305U (en) * | 2010-12-07 | 2011-07-20 | 上海三电贝洱汽车空调有限公司 | Electric component of electric compressor |
| CN205936555U (en) * | 2016-07-28 | 2017-02-08 | 中国石油天然气股份有限公司 | Intelligent sectional water injection process pipe column for horizontal well huff and puff |
| US20170314377A1 (en) * | 2016-04-29 | 2017-11-02 | Petrochina Company Limited | Method for Enhancing Oil Recovery in Huff-Puff Oil Production of Tight Oil from a Fractured Horizontal Well |
| CN209603954U (en) * | 2018-11-27 | 2019-11-08 | 中国石油天然气股份有限公司 | Horizontal well cable-passing intelligent water distributor and horizontal well underground segmented water injection pipe column |
| CN211874462U (en) * | 2019-12-19 | 2020-11-06 | 中国石油天然气股份有限公司 | Integrated horizontal well huff-puff segmented water injection intelligent water distribution device |
-
2019
- 2019-12-19 CN CN201911316069.4A patent/CN111042780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201902305U (en) * | 2010-12-07 | 2011-07-20 | 上海三电贝洱汽车空调有限公司 | Electric component of electric compressor |
| US20170314377A1 (en) * | 2016-04-29 | 2017-11-02 | Petrochina Company Limited | Method for Enhancing Oil Recovery in Huff-Puff Oil Production of Tight Oil from a Fractured Horizontal Well |
| CN205936555U (en) * | 2016-07-28 | 2017-02-08 | 中国石油天然气股份有限公司 | Intelligent sectional water injection process pipe column for horizontal well huff and puff |
| CN209603954U (en) * | 2018-11-27 | 2019-11-08 | 中国石油天然气股份有限公司 | Horizontal well cable-passing intelligent water distributor and horizontal well underground segmented water injection pipe column |
| CN211874462U (en) * | 2019-12-19 | 2020-11-06 | 中国石油天然气股份有限公司 | Integrated horizontal well huff-puff segmented water injection intelligent water distribution device |
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Application publication date: 20200421 |