CN113062733A - Segmented horizontal well water control three-dimensional simulation experiment device and experiment method thereof - Google Patents
Segmented horizontal well water control three-dimensional simulation experiment device and experiment method thereof Download PDFInfo
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- CN113062733A CN113062733A CN202110392362.XA CN202110392362A CN113062733A CN 113062733 A CN113062733 A CN 113062733A CN 202110392362 A CN202110392362 A CN 202110392362A CN 113062733 A CN113062733 A CN 113062733A
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- 238000002474 experimental method Methods 0.000 title claims description 24
- 238000004088 simulation Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 15
- 235000020681 well water Nutrition 0.000 title claims description 14
- 239000002349 well water Substances 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000012856 packing Methods 0.000 claims abstract description 11
- 239000000700 radioactive tracer Substances 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 28
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 230000001965 increasing effect Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
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- 239000002699 waste material Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000004401 flow injection analysis Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000670 limiting effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 238000011161 development Methods 0.000 description 4
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- 230000011218 segmentation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000017488 activation-induced cell death of T cell Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum 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
- 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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Abstract
The experimental device mainly comprises a liquid supply system, an annular system, a water control device working system, a central pipe system and a sample collection system. The liquid supply system middle and high discharge capacity variable frequency plunger pump feed liquor end is connected with the liquid storage pot with the pipeline, goes out the liquid end and is connected with the numerical control flowmeter with the pipeline, and pipeline and annular space system feed liquor interface connection for the numerical control flowmeter, the accuse water system parent tube is installed in the annular space system, forms independent production liquid section through packing the baffle, and the center tube module is installed inside the accuse water system parent tube, and the parent tube forms annular space circulation cavity with the center tube is inside, and the center tube play liquid end is connected with sample collection system, forms complete flow system. The invention can effectively simulate the flow limiting effect of a single or a plurality of automatic inflow control devices of the segmented horizontal well under the conditions of different liquid production contributions and different water contents in an oil-water mixing state, thereby verifying the water control effect of the water control device.
Description
Technical Field
The application relates to the technical field of oil and gas field development, in particular to a segmented horizontal well water control three-dimensional simulation experiment device and an experiment method thereof.
Background
With the continuous development of petroleum technology, wells with complex structures such as horizontal wells and multilateral wells become the main mode of oil and gas field exploitation, and the horizontal wells have the advantages of increasing the contact area between a well hole and an oil and gas reservoir, increasing the liquid production capacity, improving the oil displacement efficiency, delaying the gas-water breakthrough time and the like relative to vertical wells. However, due to reservoir physical properties, production pressure difference and toe effect, the liquid production contributions of all positions of the horizontal well in the production process have certain differences, which are mainly shown as unbalanced liquid production along the horizontal section in the production well, and the oil/gas yield is sharply reduced after water breakthrough, thus seriously affecting the productivity exertion and the development comprehensive benefit of the horizontal well. In recent years, the aim of high-efficiency exploitation of horizontal wells is to realize single-well multilayer control, selective production and injection of horizontal wells and multilateral wells, real-time optimization of flow and production profiles of each layer, delay and reduce gas-water ridge advance, finally achieve high-quality oil reservoir management and production management and improve recovery ratio. The best method for achieving the aim is to adopt an Automatic Inflow Controller (AICD) water control technology, the technology is developed on the basis of the inflow controller water control technology, the technology has the characteristics of balanced profile, toe-heel effect elimination, annular flow influence elimination and oil well production life prolonging, and meanwhile, the technology can also divide fluid, limit water output, greatly improve the recovery ratio of an oil well and is suitable for a bottom water oil reservoir with strong heterogeneity. Compared with the intelligent well completion technology, the water control method does not need the control of an optical cable, greatly improves the reliability of the inflow controller, and compared with the traditional water control technology of the inflow controller, the automatic water control technology of the inflow controller strengthens the limitation on the water output after the water is seen in a shaft, further improves the balanced control effect of the liquid production profile of the horizontal well, and is more beneficial to improving the recovery ratio of the horizontal well. The automatic inflow control device is a passive wellbore inflow control device that adjusts the sand surface pressure profile of the horizontal section by creating an additional pressure drop between the annulus and the base pipe through which fluid flows, thereby achieving a relatively uniform production profile.
At present, the water control completion technology is still in a continuous perfecting stage, particularly a horizontal well water control three-dimensional physical model, the existing experimental device cannot simulate the water control capacity under the comprehensive environment of an annulus, a base pipe and a central pipe, and cannot comprehensively evaluate the comprehensive water control effect of a single or multiple automatic inflow control devices through the output contribution of each section, so that a sectional horizontal well water control three-dimensional simulation experimental device is urgently needed for effectively simulating the water control effect of a horizontal well under different sections and different water contents.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a segmented horizontal well water control three-dimensional simulation experiment device and an experiment method thereof.
The utility model provides a three-dimensional simulation experiment device of segmentation horizontal well accuse water each subassembly characterized in that includes:
the liquid supply system comprises a high-displacement variable-frequency plunger pump, a liquid storage tank, a numerical control flowmeter and a pressure sensor; the high-displacement variable-frequency plunger pump is used for supplying liquid to the experimental device; the pressure sensor is arranged outside the annular liquid inlet, and the other end of the pressure sensor is connected with a computer; the liquid storage tank is used for storing experimental fluid; the flow control valve is used for setting each section of flow, and can realize constant flow injection.
The annular system comprises an organic glass annular pipe, a liquid inlet interface, a packing baffle and an annular pipe base; the packing baffle is fixed inside the glass fiber reinforced plastic annular tube through screws and can be detached; the liquid inlet interface is connected with a liquid supply system; the annular pipe base is installed at the bottom of the annular pipe, fixed with the annular pipe through screws and used for carrying the whole module.
The water control device working system comprises an intelligent releasable tracer, a base pipe, an intelligent releasable tracer installation groove and an automatic inflow control device; the base pipe is arranged in an organic glass annular pipe; the automatic inflow control device is arranged on the outer side of the base pipe and can change the number according to the experiment requirement. The intelligent releasable tracer is installed in a special groove on the outer side of the base pipe and can be increased and decreased in quantity according to experiment requirements.
The central pipe system comprises a central pipe, a single-flow ring, a flow nozzle and a pipeline interface; the central tube is arranged inside the base tube; the flow nozzle is arranged outside the central tube and is the only channel for the fluid to flow into the central tube.
The sample collection system comprises a liquid inlet valve, a collection container and a waste liquid storage tank; the valve is arranged at the outlet end of the annular tube.
The utility model provides a three-dimensional simulation experiment device of segmentation horizontal well accuse water which comprises:
the liquid inlet end of a high-displacement variable-frequency plunger pump in the liquid supply system is connected with the liquid storage tank through a pipeline, the liquid outlet end of the high-displacement variable-frequency plunger pump is connected with a numerical control flowmeter through a pipeline, and the numerical control flowmeter is connected with a liquid inlet interface of the annular system through a pipeline; the base pipe of the water control system is arranged in the annular system, and an independent liquid production section is formed by a packing baffle; the central pipe module is installed inside the base pipe of the water control system, an annular circulation chamber is formed between the base pipe and the inside of the central pipe, the liquid outlet end of the central pipe is connected with the sample collection system, a complete flow system is formed, and the production process of a simulated horizontal well can be realized.
In the technical scheme, the experimental fluid is an oil phase, a water phase or an oil-water mixed phase with different proportions.
In the technical scheme, the intelligent releasable tracer is oil-soluble and water-soluble releasable tracers.
In the above technical scheme, the numerical control flow meter adopts digital acquisition equipment such as a mass flow meter or a volume flow meter.
In the technical scheme, the pipeline consists of a stainless steel pipe and a high-pressure hose and is used for connecting equipment and devices.
The segmented horizontal well water control three-dimensional simulation experiment method is characterized by comprising the following steps:
step 1), installing a water control working system for experiments, installing an automatic inflow control device and an intelligent releasable tracer according to the design of an experimental scheme, installing the water control working system into the annular pipe, and installing the pipeline.
Step 2), adding experimental fluid into the liquid storage tank;
step 3), closing a valve in the sample collection module to enable the annular tube to be in a closed state;
and step 4), opening the numerical control flowmeter 1, the numerical control flowmeter 2, the numerical control flowmeter 3, the numerical control flowmeter 4 and the numerical control flowmeter 5 in the liquid supply module.
And 5), opening a high-displacement variable-frequency plunger pump in the liquid supply module, injecting liquid into the annular tube until the test fluid is completely filled in all the tube volumes, and then closing the annular tube.
And 6), standing for 24 hours after the high-displacement variable-frequency plunger pump is closed, keeping the state of the step 3) by the experimental device, and intelligently releasing the tracer to fully contact with experimental fluid to release tracer clusters.
And 7), opening a valve of the sample collection module, opening the high-displacement variable-frequency plunger pump, monitoring the change of the pressure sensor, and continuously sampling nearby a liquid storage tank of the sample collection module at the sampling frequency of 30 seconds/time.
And 8) detecting the effective chemical components and substance concentration of the intelligent releasable tracer in the sample, and explaining the oil-water yield distribution of each section through the concentration distribution of the tracer.
And 9) evaluating the water control and oil increasing effects of the automatic inflow control device on the horizontal well through the oil-water yield contribution of each section obtained in the step 8).
The invention has the following benefits:
the invention can effectively simulate the three-dimensional simulation flow of fluid in the annulus, the water control base pipe and the central pipe of the horizontal well, simulate the water control effect of a single or a plurality of automatic inflow control devices under the conditions of different liquid production contributions of each section of the horizontal well and different water contents of oil phase and water phase, can be used for simulating the production dynamic of the horizontal well and the design of the optimization scheme of the water control well completion, and indicates the high-efficiency development of the horizontal well.
Drawings
FIG. 1 is a front view of the complete device of the present invention.
FIG. 2 is a schematic top view of a system for operating a water control device according to the present invention.
The above figures are illustrated by the various reference numerals:
1. a liquid supply and storage tank; 2 high-displacement variable-frequency plunger pump; 3. a central tube flow nozzle; 4. an automatic inflow control device; 5. a numerical control flowmeter; 6. a pressure sensor; 7. a liquid inlet of the annular pipe; 8. an annular tube; 9. a liquid outlet valve; 10. an annular tube base; 11. an intelligent releasable tracer; 12. a base pipe; 13. a central tube; 14. a packing baffle; 15. sampling point valves; 16. a collection liquid container; 17. a waste liquid storage tank.
Detailed Description
The present invention is described in detail below with reference to the following embodiments and the attached drawings, and it should be noted that the embodiment is only an implementation method of the present invention for specific situations, and is not intended to limit the present invention in any way, and any simple modification, change and other changes made according to the technical spirit of the present invention are within the protection scope of the present invention.
Examples 1,
The utility model provides a three-dimensional simulation experiment device of segmentation horizontal well accuse water each subassembly characterized in that includes:
the liquid supply system comprises a high-displacement variable-frequency plunger pump, a liquid storage tank, a numerical control flowmeter and a pressure sensor; the high-displacement variable-frequency plunger pump is used for supplying liquid to the experimental device; the pressure sensor is arranged outside the annular liquid inlet, and the other end of the pressure sensor is connected with a computer; the liquid storage tank is used for storing experimental fluid; the flow control valve is used for setting each section of flow, and can realize constant flow injection.
The annular system comprises an organic glass annular pipe, a liquid inlet interface, a packing baffle and an annular pipe base; the packing baffle is fixed inside the glass fiber reinforced plastic annular tube through screws and can be detached; the liquid inlet interface is connected with a liquid supply system; the annular pipe base is installed at the bottom of the annular pipe, fixed with the annular pipe through screws and used for carrying the whole module.
The water control device working system comprises an intelligent releasable tracer, a base pipe, an intelligent releasable tracer installation groove and an automatic inflow control device; the base pipe is arranged in an organic glass annular pipe; the automatic inflow control device is arranged on the outer side of the base pipe and can change the number according to the experiment requirement. The intelligent releasable tracer is installed in a special groove on the outer side of the base pipe and can be increased and decreased in quantity according to experiment requirements.
The central pipe system comprises a central pipe, a single-flow ring, a flow nozzle and a pipeline interface; the central tube is arranged inside the base tube; the flow nozzle is arranged outside the central tube and is the only channel for the fluid to flow into the central tube.
The sample collection system comprises a liquid inlet valve, a collection container and a waste liquid storage tank; the valve is arranged at the outlet end of the annular tube.
The utility model provides a three-dimensional simulation experiment device of segmentation horizontal well accuse water which comprises:
the liquid inlet end of a high-displacement variable-frequency plunger pump in the liquid supply system is connected with the liquid storage tank through a pipeline, the liquid outlet end of the high-displacement variable-frequency plunger pump is connected with a numerical control flowmeter through a pipeline, and the numerical control flowmeter is connected with a liquid inlet interface of the annular system through a pipeline; the base pipe of the water control system is arranged in the annular system, and an independent liquid production section is formed by a packing baffle; the central pipe module is installed inside the base pipe of the water control system, an annular circulation chamber is formed between the base pipe and the inside of the central pipe, the liquid outlet end of the central pipe is connected with the sample collection system, a complete flow system is formed, and the production process of a simulated horizontal well can be realized.
Examples 2,
The experimental method for evaluating the water control effect of the single-phase fluid flowing in from different layer sections in the sectional horizontal well by using the simulation experimental device comprises the following steps:
the example of the simulation experiment device designed according to the present invention shown in fig. 1 simulating 5 intervals of fluid inflow into the wellbore section is taken, but the present invention is not limited to simulating 5 intervals of fluid inflow.
Step 1), installing a water control working system for experiments, installing an automatic inflow control device and an intelligent releasable tracer according to the design of an experimental scheme, installing the water control working system into the annular pipe, and installing the pipeline.
Step 2), adding experimental fluid into the liquid storage tank;
step 3), closing a valve in the sample collection module to enable the annular tube to be in a closed state;
and step 4), opening the numerical control flowmeter 1, the numerical control flowmeter 2, the numerical control flowmeter 3, the numerical control flowmeter 4 and the numerical control flowmeter 5 in the liquid supply module.
And 5), opening a high-displacement variable-frequency plunger pump in the liquid supply module, injecting liquid into the annular tube until the test fluid is completely filled in all the tube volumes, and then closing the annular tube.
And 6), standing for 24 hours after the high-displacement variable-frequency plunger pump is closed, keeping the state of the step 3) by the experimental device, and intelligently releasing the tracer to fully contact with experimental fluid to release the tracer.
And 7), opening a valve of the sample collection module, opening the high-displacement variable-frequency plunger pump, monitoring the change of the pressure sensor, and continuously sampling nearby a liquid storage tank of the sample collection module at the sampling frequency of 30 seconds/time.
And 8) detecting the effective chemical components and substance concentration of the intelligent releasable tracer in the sample, and explaining the oil-water yield distribution of each section through the concentration distribution of the tracer.
And 9) evaluating the water control and oil increasing effects of the automatic inflow control device on the horizontal well through the oil-water yield contribution of each section obtained in the step 8).
Examples 3,
The experimental method for evaluating the water control effect of the oil-water mixed fluid flowing from different intervals in the segmented horizontal well by using the simulation experimental device comprises the following steps:
the example of the simulation experiment device designed according to the present invention shown in fig. 1 simulating 5 intervals of fluid flowing into the wellbore section is taken, but the present invention is not limited to simulating 5 intervals of fluid flowing into the wellbore section.
Step 1), installing a water control working system for experiments, installing an automatic inflow control device and an intelligent releasable tracer according to the design of an experimental scheme, installing the water control working system into the annular pipe, and installing the pipeline.
Step 2), adding experimental fluid into the liquid storage tank;
step 3), closing a valve in the sample collection module to enable the annular tube to be in a closed state;
and step 4), opening the numerical control flowmeter 1, the numerical control flowmeter 2, the numerical control flowmeter 3, the numerical control flowmeter 4 and the numerical control flowmeter 5 in the liquid supply module.
And 5), opening a high-displacement variable-frequency plunger pump in the liquid supply module, injecting liquid into the annular tube until the test fluid is completely filled in all the tube volumes, and then closing the annular tube.
And 6), standing for 24 hours after the high-displacement variable-frequency plunger pump is closed, keeping the state of the step 3) by the experimental device, and intelligently releasing the tracer to fully contact with experimental fluid to release the tracer.
And 7), opening a valve of the sample collection module, opening the high-displacement variable-frequency plunger pump, monitoring the change of the pressure sensor, and continuously sampling nearby a liquid storage tank of the sample collection module at the sampling frequency of 30 seconds/time.
And 8) detecting the effective chemical components and substance concentration of the intelligent releasable tracer in the sample, and explaining the oil-water yield distribution of each section through the concentration distribution of the tracer.
And 9) evaluating the water control and oil increasing effects of the automatic inflow control device on the horizontal well through the oil-water yield contribution of each section obtained in the step 8).
Claims (7)
1. A segmented horizontal well water control three-dimensional simulation experiment device and an experiment method thereof are characterized by comprising the following steps:
the system comprises a liquid supply system, an annular system, a water control device working system, a central pipe system and a sample collection system, wherein the liquid inlet end of a high-displacement variable-frequency plunger pump in the liquid supply system is connected with a liquid storage tank through a pipeline, the liquid outlet end of the high-displacement variable-frequency plunger pump is connected with a numerical control flowmeter through a pipeline, and the numerical control flowmeter is connected with a liquid inlet interface of the annular system through a pipeline; the base pipe of the water control system is arranged in the annular system, and an independent liquid production section is formed by a packing baffle; the central pipe module is installed inside the base pipe of the water control system, an annular circulation chamber is formed between the base pipe and the inside of the central pipe, the liquid outlet end of the central pipe is connected with the sample collection system, a complete flow system is formed, and the production process of a simulated horizontal well can be realized.
2. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof according to claim 1, wherein the liquid supply system comprises a high-displacement variable-frequency plunger pump, a liquid storage tank, a numerical control flowmeter and a pressure sensor; the high-displacement variable-frequency plunger pump is used for supplying liquid to the experimental device; the pressure sensor is arranged outside the annular liquid inlet, and the other end of the pressure sensor is connected with a computer; the liquid storage tank is used for storing experimental fluid; the flow control valve is used for setting each section of flow, and can realize constant flow injection.
3. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof according to claim 1, wherein the annulus system comprises an organic glass annulus pipe, a liquid inlet interface, a packing baffle and an annulus pipe base; the packing baffle is fixed inside the glass fiber reinforced plastic annular tube through screws and can be detached; the liquid inlet interface is connected with a liquid supply system; the annular pipe base is installed at the bottom of the annular pipe, fixed with the annular pipe through screws and used for carrying the whole module.
4. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof according to claim 1, wherein the water control device working system comprises an intelligent releasable tracer, a base pipe, an intelligent releasable tracer installation groove and an automatic inflow control device; the base pipe is arranged in an organic glass annular pipe; the automatic inflow control device is arranged on the outer side of the base pipe and can change the number according to the experiment requirement. The intelligent releasable tracer is installed in a special groove on the outer side of the base pipe and can be increased and decreased in quantity according to experiment requirements.
5. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof according to claim 1, wherein the central pipe system comprises a central pipe, a single-flow ring, a flow nozzle and a pipeline interface; the central tube is arranged inside the base tube; the flow nozzle is arranged outside the central tube and is the only channel for the fluid to flow into the central tube.
6. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof according to claim 1, wherein the sample collection system comprises a liquid inlet valve, a collection container and a waste liquid storage tank; the valve is arranged at the outlet end of the annular tube.
7. The segmented horizontal well water control three-dimensional simulation experiment device and the experiment method thereof are characterized in that the experimental device is carried out by the intelligent releasable tracer production profile test experiment device according to any one of claims 1 to 6, the types of the intelligent releasable tracer installed at each segment are different, and the experimental device comprises the following steps:
step 1), installing a water control working system for experiments, installing an automatic inflow control device and an intelligent releasable tracer according to the design of an experimental scheme, installing the water control working system into the annular pipe, and installing the pipeline.
Step 2), adding experimental fluid into the liquid storage tank;
step 3), closing a valve in the sample collection module to enable the annular tube to be in a closed state;
and step 4), opening the numerical control flowmeter 1, the numerical control flowmeter 2, the numerical control flowmeter 3, the numerical control flowmeter 4 and the numerical control flowmeter 5 in the liquid supply module.
And 5), opening a high-displacement variable-frequency plunger pump in the liquid supply module, injecting liquid into the annular tube until the test fluid is completely filled in all the tube volumes, and then closing the annular tube.
And 6), standing for 24 hours after the high-displacement variable-frequency plunger pump is closed, keeping the state of the step 3) by the experimental device, and intelligently releasing the tracer to fully contact with experimental fluid to release the tracer.
And 7), opening a valve of the sample collection module, opening the high-displacement variable-frequency plunger pump, monitoring the change of the pressure sensor, and continuously sampling nearby a liquid storage tank of the sample collection module at the sampling frequency of 30 seconds/time.
And 8) detecting the effective chemical components and substance concentration of the intelligent releasable tracer in the sample, and explaining the oil-water yield distribution of each section through the concentration distribution of the tracer.
And 9) evaluating the water control and oil increasing effects of the automatic inflow control device on the horizontal well through the oil-water yield contribution of each section obtained in the step 8).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113803053A (en) * | 2021-10-14 | 2021-12-17 | 中国石油大学(北京) | Test equipment and experimental system for water control simulation of well completion engineering |
| CN116539300A (en) * | 2023-05-16 | 2023-08-04 | 中国石油大学(北京) | Water control valve performance evaluation method |
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