CN110685677A - Water control simulation experiment device and experiment method for horizontal well of heterogeneous oil reservoir - Google Patents
Water control simulation experiment device and experiment method for horizontal well of heterogeneous oil reservoir Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 238000002474 experimental method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012806 monitoring device Methods 0.000 claims description 70
- 235000019198 oils Nutrition 0.000 claims description 37
- 238000012360 testing method Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 235000019476 oil-water mixture Nutrition 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 66
- 239000003921 oil Substances 0.000 description 21
- 230000008569 process Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
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- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000005514 two-phase flow Effects 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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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
- E21B47/00—Survey of boreholes or wells
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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Abstract
The invention discloses a water control simulation experiment device and an experiment method for horizontal wells with heterogeneous oil reservoirs.
Description
Technical Field
The invention belongs to the technical field of petroleum engineering, and particularly relates to a water control simulation experiment device and an experiment method for a horizontal well with a heterogeneous oil reservoir.
Background
In the process of oil and gas development, in order to increase the oil drainage area of a production zone, a horizontal well is often adopted for development. Due to reservoir heterogeneity, toe effect, fluid characteristic difference and the like, the horizontal well is prone to water breakthrough early, once a water cone breaks through, the water content will rise rapidly, and the oil field development benefit is seriously affected. Due to the existence of cracks, factors such as crack width, oil-water viscosity difference and the like exist in a fractured carbonate reservoir, a fractured reef limestone reservoir and the like, seepage of fluid in the cracks is unbalanced, and water cone breakthrough is easily caused, so that production is influenced; sandstone reservoirs are easy to cause local water breakthrough due to the difference of porosity, permeability and the like, and the sand production risk is increased due to the dragging effect of water while water breakthrough is caused, so that the development effect is seriously influenced.
At present, in the aspect of horizontal well water control experiment devices, an experiment device based on subsection in a shaft is available, an experiment device for simulating comprehensive environments in the shaft and outside the shaft is not available, and the production rule of oil-water two-phase flow in a stratum and the shaft cannot be simulated, so that the horizontal well water control simulation experiment device for the heterogeneous oil reservoir is urgently needed for effectively simulating the production condition of a horizontal well under the conditions of heterogeneous distributed strata of a horizontal section and different water contents of each layer section.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a water control simulation experiment device and an experiment method for a horizontal well with a heterogeneous oil reservoir.
The invention is realized by the following technical scheme:
a water control simulation experiment device for a horizontal well of a heterogeneous oil reservoir comprises a horizontal shaft, a core barrel, a test liquid supply device and a monitoring system;
the horizontal shaft is sealed through flange structures at two sides, a water control pipe column to be tested is arranged in the horizontal shaft, the water control pipe column extends into the horizontal shaft through the flange structure at one side of the horizontal shaft, a plurality of openings are formed in the side wall of the horizontal shaft, the core barrel is communicated with the openings through a flow manifold, particle fillers are filled in the horizontal shaft, and a simulated core for simulating a fractured reservoir and particle fillers for simulating a sandstone reservoir are filled in the core barrel;
the test liquid supply device comprises a test liquid storage tank and a pressurizing pump, the test liquid storage tank is connected with the inlet end of the core barrel through a flow manifold, and the test liquid in the test liquid storage tank is pumped into each core barrel through the pressurizing pump;
the monitoring system comprises a flow monitoring device, a pressure monitoring device and a water content monitoring device, wherein the flow monitoring device comprises a core barrel flow monitoring device arranged at the inlet end of a core barrel and an outlet flow monitoring device arranged at the outlet end of a water control pipe column; the pressure monitoring device comprises a core barrel pressure monitoring device (a core barrel inlet pressure monitoring device and a core barrel outlet pressure monitoring device) arranged at the inlet end and the outlet end of the core barrel, a shaft pressure monitoring device arranged on the wall of the horizontal shaft and an outlet pressure monitoring device arranged at the outlet end of the water control pipe column; the water content monitoring device is arranged at the inlet end of the core barrel and the outlet end of the water control pipe column.
In the above technical solution, the water control pipe column includes a water control device, a segment tool, a blind plug, and the like, wherein the water control device may be a viscosity-sensitive flow control valve disclosed in chinese patent application No. 201610239791.2, and the segment tool may be a K341 type expanding packer.
In the technical scheme, the horizontal shaft is a horizontally placed stainless steel pipe, and the inner diameter of the horizontal shaft is 8-1/2 'or 6' which is the size of an open hole completion commonly used in petroleum underground.
In the technical scheme, the particle filler in the horizontal shaft is a particle material such as sand control gravel.
In the technical scheme, the shaft pressure monitoring devices are equidistantly distributed along the outer wall of the horizontal well barrel.
In the above technical scheme, the inlet end of the core barrel is provided with a gate valve.
In the technical scheme, the core barrel adopts transparent sand filling pipes, and the number of the transparent sand filling pipes is 2-4.
In the technical scheme, the simulated rock core adopts rock core materials with different fracture specifications and is used for simulating a fractured reservoir.
In the technical scheme, the particle fillers in the core barrel have different particle sizes and are used for simulating sandstone oil reservoirs with different permeability.
In the above technical solution, the flow monitoring device (including the core barrel flow monitoring device and the outlet flow monitoring device) adopts a digital acquisition device such as a mass flow meter or a volume flow meter.
In the technical scheme, the pressure monitoring device (comprising a core barrel inlet pressure monitoring device, a core barrel outlet pressure monitoring device, a shaft pressure monitoring device and an outlet pressure monitoring device) adopts digital acquisition equipment such as a pressure sensor and the like.
In the technical scheme, the flow manifold consists of a stainless steel pipe and a high-pressure hose and is used for connecting equipment and devices and guiding the fluid for testing.
In the technical scheme, the test liquid is oil, water or an oil-water mixture.
A water control simulation experiment method for horizontal wells of heterogeneous reservoirs comprises the following steps:
a) preparing an oil reservoir model: preparing a rock core according to the requirements of simulated formation type, permeability, porosity and the like, filling the rock core into the transparent sand filling pipe of the rock core barrel, and establishing an oil reservoir model for experiments;
b) install for the experiment accuse water pipe post: installing a water control pipe column for testing into the horizontal shaft, and connecting the overflowing manifold and the monitoring system (comprising a flow monitoring device and a pressure monitoring device);
c) developing a water control simulation experiment: the test fluid that different or the same viscosity fluid or different moisture content fluid were pumped in different core barrel entry ends simulates the horizontal well and adopts the condition:
measuring the flow Q1 and Q2 of the inlet and the outlet of the core barrel by using a core barrel flow monitoring device, and measuring the flow Q3 of the outlet of the water control pipe column by using an outlet flow monitoring device; the pressure F1 and F2 at the inlet and the outlet of the core barrel are measured by a core barrel pressure monitoring device, the pressure F3 at the outlet of the water control column is measured by an outlet pressure monitoring device, and the pressure F4 at each position of the shaft is measured by a shaft pressure monitoring device.
d) Analysis of water control experimental data: analyzing the relation between the pressure of the water control pipe column and the discharge capacity of the produced liquid and the water content of the produced liquid under the conditions of different oil reservoir models, different displacement pressures, different water contents and different oil viscosities according to the collected data:
calculating the stratum loss pressure which is the pressure at the inlet end of the core barrel and the pressure at the outlet end of the core barrel;
the pressure loss at a certain position of the water control pipe column is equal to the pressure of a corresponding pressure measuring point of the horizontal shaft-the pressure at the outlet end of the water control pipe column;
the discharge capacity of the produced liquid is data collected by a flow monitoring system;
the water content of the produced liquid is the data collected by the water content monitoring device at the outlet end of the water control pipe column.
In the technical scheme, the fluid for testing is crude oil, hydraulic oil or diesel oil, and the flow range of the liquid in the testing process is 0-4000L/min.
The invention has the advantages and beneficial effects that: the simulation method combines the simulation of the water control process in the shaft with the simulation of the stratum outside the shaft, can simulate the output condition of the water control process under the condition of different water contents of underground fractured reservoirs or sandstone reservoirs in heterogeneous distribution, is used for simulating the production dynamics of the horizontal well and evaluating the yield increasing effect of the water control technology, and thus guides the high-efficiency development of the horizontal well.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1. a horizontal wellbore; 1-1, flange; 1-2, a particulate filler; 2. a wellbore pressure monitoring device; 3. a core barrel; 4. a core barrel pressure monitoring device; 5. a core barrel flow monitoring device; 6. a gate valve; 7. a flow manifold; 7-1, an inlet; 8. a water control pipe column; 8-1, an outlet pressure monitoring device; 8-2 and an outlet flow monitoring device.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
Examples
Fig. 1 is a water control simulation experiment device for a horizontal well of a heterogeneous oil reservoir, which comprises a horizontal shaft 1, a core barrel 3, a test fluid supply device (not shown in the figure) and a monitoring system;
the horizontal shaft 1 is 8-1/2 'and 6' in the size of open hole well completion commonly used in petroleum underground, two sides of the horizontal shaft are sealed by a flange 1-1 structure, a water control pipe column 8 to be tested is arranged in the horizontal shaft, the water control pipe column extends into the horizontal shaft through the flange structure on one side of the horizontal shaft, a plurality of openings are formed in the side wall of the horizontal shaft, the core barrel adopts transparent sand filling pipes, the number of the core barrel is 2-4, the core barrel is communicated with the openings through a flow manifold 7, the horizontal shaft is filled with particle fillers 1-2, the core barrel is filled with a simulation core for simulating a fractured reservoir and particle fillers for simulating a sandstone reservoir, and the particle fillers adopt particle materials such as sand control gravel;
the test liquid supply device comprises a test liquid storage tank and a pressurizing pump, the test liquid storage tank is connected with the inlet end of the core barrel through a flow manifold 7, and the test liquid in the test liquid storage tank is pumped into each core barrel through the pressurizing pump;
the monitoring system comprises a flow monitoring device, a pressure monitoring device and a water content monitoring device, wherein the flow monitoring device comprises a core barrel flow monitoring device 5 arranged at the inlet end of a core barrel and an outlet flow monitoring device 8-1 arranged at the outlet end of a water control pipe column; the flow monitoring device adopts digital acquisition equipment such as a mass flowmeter or a volume flowmeter; the pressure monitoring device comprises a core barrel pressure monitoring device 4 (a core barrel inlet pressure monitoring device and a core barrel outlet pressure monitoring device) arranged at the inlet end and the outlet end of the core barrel, a shaft pressure monitoring device 2 arranged on the wall of the horizontal shaft and an outlet pressure monitoring device 8-1 arranged at the outlet end of the water control pipe column; the pressure monitoring device adopts digital acquisition equipment such as a pressure sensor and the like, and the moisture content monitoring device is arranged at the inlet end of the core barrel and the outlet end of the water control pipe column.
The water control simulation experiment method for the horizontal well with the heterogeneous oil reservoir can be carried out by utilizing the water control simulation experiment device for the horizontal well with the heterogeneous oil reservoir, and comprises the following steps:
a) preparing an oil reservoir model: preparing a rock core according to the requirements of the simulated formation type, permeability, porosity and the like, filling the rock core into the transparent sand filling pipe of the rock core barrel 3, and establishing an oil reservoir model for experiments;
b) install for the experiment accuse water pipe post: installing a test water control pipe column into the horizontal shaft 1, and connecting the overflow manifold 7 and data acquisition equipment;
c) developing a water control simulation experiment: pumping test fluids with different or same water contents into the inlet ends of different core barrels 3 to simulate the production condition of a horizontal well, and collecting data of the shaft pressure monitoring system 2, the core barrel pressure monitoring device 4, the core barrel flow monitoring device 5 and the like by adopting a digital collecting terminal;
d) analysis of water control experimental data: and analyzing the relation between the pressure of the water control pipe column and the discharge capacity of the produced liquid under the conditions of different oil reservoir models, different displacement pressures, different water contents and different oil viscosities according to the acquired data.
The working process of the invention is as follows:
when a water control process experiment is carried out, a water control pipe column to be tested is installed into a horizontal shaft 1, granular materials such as sand-prevention gravel are filled in the horizontal shaft 1 and used for simulating a water control pipe column structure in the shaft, different simulation rock cores, granular materials and the like are arranged in a core barrel 3 according to experiment requirements and used for simulating different stratums, an inlet 7-1 of an experiment device is connected with an outlet of a test pump, test fluids with different or same water contents are pumped into inlet ends of different core barrels 3, the test fluids are crude oil, hydraulic oil or diesel oil, and the liquid flow range in the test process is 0-4000L/min. The gate valve 6 is used for adjusting the exploitation and closing state of the layer simulated by each core barrel 3, the core barrel pressure monitoring device 4 is used for collecting the pressure change of the testing fluid after the testing fluid passes through the core barrel 3 and is filled with materials, the core barrel flow monitoring device 5 is used for collecting the discharge capacity of the testing fluid passing through the core barrel 3, the fluids of different core barrels 3 enter the horizontal shaft 1 through the overflow manifold 7, the shaft pressure monitoring system 2 is used for collecting the pressure change of each position of the horizontal shaft 1 under the comprehensive action of simulating the stratum, the filling materials in the shaft and the water control pipe column, and the data collected by the core barrel pressure monitoring device 4, the core barrel flow monitoring device 5 and the shaft pressure monitoring system 2 are collected and processed by the data receiving terminal and are used for evaluating the production dynamic and yield increasing effect of a certain water control process under the specific stratum environment.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (10)
1. The utility model provides a simulation experiment device of water accuse of horizontal well of heterogeneous oil reservoir which characterized in that: the device comprises a horizontal shaft, a core barrel, a test liquid supply device and a monitoring system;
the horizontal shaft is sealed through flange structures at two sides, a water control pipe column to be tested is arranged in the horizontal shaft, the water control pipe column extends into the horizontal shaft through the flange structure at one side of the horizontal shaft, a plurality of openings are formed in the side wall of the horizontal shaft, the core barrel is communicated with the openings through a flow manifold, particle fillers are filled in the horizontal shaft, and a simulated core for simulating a fractured reservoir and particle fillers for simulating a sandstone reservoir are filled in the core barrel;
the test liquid supply device comprises a test liquid storage tank and a pressurizing pump, the test liquid storage tank is connected with the inlet end of the core barrel through a flow manifold, and the test liquid in the test liquid storage tank is pumped into each core barrel through the pressurizing pump;
the monitoring system comprises a flow monitoring device, a pressure monitoring device and a water content monitoring device, wherein the flow monitoring device comprises a core barrel flow monitoring device arranged at the inlet end of a core barrel and an outlet flow monitoring device arranged at the outlet end of a water control pipe column; the pressure monitoring device comprises a core barrel pressure monitoring device arranged at the inlet end and the outlet end of the core barrel, a shaft pressure monitoring device arranged on the wall of the horizontal shaft and an outlet pressure monitoring device arranged at the outlet end of the water control pipe column; the water content monitoring device is arranged at the inlet end of the core barrel and the outlet end of the water control pipe column.
2. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the water control pipe column comprises a water control device, a sectional tool and a blind plug.
3. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the particle filler in the horizontal shaft is sand-prevention gravel.
4. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: and the shaft pressure monitoring devices are equidistantly distributed along the outer wall of the horizontal well barrel.
5. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: and a gate valve is arranged at the inlet end of the core barrel.
6. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the core barrel adopts transparent sand filling pipes, and the number of the transparent sand filling pipes is 2-4.
7. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the flow monitoring device adopts a mass flow meter or a volume flow meter; the pressure monitoring device adopts a pressure sensor.
8. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the flow manifold consists of a stainless steel pipe and a high-pressure hose and is used for connecting equipment and devices and guiding the flow of the fluid for testing.
9. The water control simulation experiment device for the horizontal well of the heterogeneous oil reservoir according to claim 1, which is characterized in that: the test liquid is oil, water or oil-water mixture.
10. A water control simulation experiment method for a horizontal well of a heterogeneous oil reservoir is characterized by comprising the following steps:
a) preparing an oil reservoir model: preparing a rock core according to the requirements of simulated formation type, permeability, porosity and the like, filling the rock core into the transparent sand filling pipe of the rock core barrel, and establishing an oil reservoir model for experiments;
b) install for the experiment accuse water pipe post: installing a test water control pipe column into the horizontal shaft, and connecting the overflowing manifold and the monitoring system;
c) developing a water control simulation experiment: pumping oil liquid with different or same viscosity or oil liquid with different water content into the inlet ends of different core barrels to simulate the production condition of the horizontal well for test;
d) analysis of water control experimental data: and analyzing the relation between the pressure of the water control pipe column and the discharge capacity of the produced liquid and the water content of the produced liquid under the conditions of different oil reservoir models, different displacement pressures, different water contents and different oil viscosities according to the collected data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411934A (en) * | 2020-03-29 | 2020-07-14 | 中国石油大学(华东) | Horizontal well sand-water cooperative output and control and exploitation well completion multifunctional experimental system and experimental method thereof |
| CN112483056A (en) * | 2020-12-10 | 2021-03-12 | 西南石油大学 | Device and method for predicting construction effect of continuous packer particle water control and oil increase site |
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| CN102704923A (en) * | 2012-06-05 | 2012-10-03 | 中国石油化工股份有限公司 | Underground physical simulation test device for horizontal well |
| CN203981385U (en) * | 2014-06-09 | 2014-12-03 | 中国石油化工股份有限公司 | For carry out the device of simulation test for tune stream water-control sieve tube |
| CN105239981A (en) * | 2015-10-27 | 2016-01-13 | 中国石油大学(北京) | Heavy oil thermal recovery horizontal well section spatially variable-mass flow simulation experiment device |
| CN106522934A (en) * | 2016-12-12 | 2017-03-22 | 中国石油大学(北京) | Physical simulation experimental device and method for development of complex fractured oil reservoir horizontal well |
| US20190317005A1 (en) * | 2018-04-11 | 2019-10-17 | Alchemy Sciences, Inc. | Test method to simulate shale oil recovery |
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2019
- 2019-10-21 CN CN201911001858.9A patent/CN110685677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102704923A (en) * | 2012-06-05 | 2012-10-03 | 中国石油化工股份有限公司 | Underground physical simulation test device for horizontal well |
| CN203981385U (en) * | 2014-06-09 | 2014-12-03 | 中国石油化工股份有限公司 | For carry out the device of simulation test for tune stream water-control sieve tube |
| CN105239981A (en) * | 2015-10-27 | 2016-01-13 | 中国石油大学(北京) | Heavy oil thermal recovery horizontal well section spatially variable-mass flow simulation experiment device |
| CN106522934A (en) * | 2016-12-12 | 2017-03-22 | 中国石油大学(北京) | Physical simulation experimental device and method for development of complex fractured oil reservoir horizontal well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111411934A (en) * | 2020-03-29 | 2020-07-14 | 中国石油大学(华东) | Horizontal well sand-water cooperative output and control and exploitation well completion multifunctional experimental system and experimental method thereof |
| CN112483056A (en) * | 2020-12-10 | 2021-03-12 | 西南石油大学 | Device and method for predicting construction effect of continuous packer particle water control and oil increase site |
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