CN101673482B - Multi-well production interwell pressure jamming-simulation method and device - Google Patents
Multi-well production interwell pressure jamming-simulation method and device Download PDFInfo
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- CN101673482B CN101673482B CN2009101678340A CN200910167834A CN101673482B CN 101673482 B CN101673482 B CN 101673482B CN 2009101678340 A CN2009101678340 A CN 2009101678340A CN 200910167834 A CN200910167834 A CN 200910167834A CN 101673482 B CN101673482 B CN 101673482B
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Abstract
The invention relates to a multi-well production interwell pressure jamming-simulation method and device used in oil-gas field, which can simulate and demonstrate a true stratum multi-well production interwell pressure jamming phenomenon and validate a pressure superposition principle. The technical proposal thereof includes the steps of opening an air storage tank at first; adjusting an air pressure regulator; providing a burden pressure for a simulated stratum; checking the shell of the simulated stratum to lead the shell to be sealed and not to leak air; then opening a water pump to pump water from a water storage tank to a constant pressure water tank; opening a water supply switch to supply water to the simulated stratum when the water level reaches the overflow height until the water level height of a water detecting pipe reaches the height of a constant pressure waterhead; then opening the drainage switch of a simulation production well, recording the pressure drop of each pressure detecting pipe and then closing the drainage switch of the well; selecting the drainage switch of another simulation production well and recording the pressure drop of each pressure detecting pipe; and circulating to analyze the three results, thus being capable of validating the pressure superposition phenomenon. The invention can repeatedly simulate the multi-well oil-gas well production pressure jamming phenomenon, is valid, and has low running cost.
Description
Technical field
The present invention relates to a kind of be used for oil gas field can analog demenstration the technology of pressure interference phenomenon between the many wells producing well of true stratum, specifically be a kind of multi-well production interwell pressure jamming-simulation method and device.
Technical background
The hydrocarbon zone permeation fluid mechanics is the most important profession basis of petroleum engineering, and pressure interference and pressure superposition are wherein important basic concepts.Interference phenomenon refers between well: in same oil reservoir, if there are many wells to produce simultaneously, the then wherein change of arbitrary mouthful of well working system as new brought in well, closing well or replacing oil nozzle or the like, all can cause well bottomhole wellbore pressure and change of production on every side.The pressure superposition principle is expressed as: when arbitrarily the pressure drop of any equals each well and works independently in the stratum in the pressure drop algebraic sum of this point generation.
The method that can simulate pressure interference between many wells producing well at present mainly contains two kinds: one, utilize the water power principle of similitude; Two, adopt computing machine to carry out numerical simulation.Utilize the water power principle of similitude, it is advantageous that analogue means is fairly simple, cost is low, but its major defect is not directly perceived, and can only simulate the steady production condition.Utilize computing machine to carry out numerical simulation, it is advantageous that does not need except that computing machine for its equipment, may simulate various formation conditions repeatedly, its shortcoming is, the external professional numerical simulation software of the general employing of numerical simulation, need the study long period to grasp, and legal professional software cost is also very high.
Summary of the invention
The objective of the invention is to: for the hydrocarbon zone permeation fluid mechanics analog demenstration of pressure interference between many wells of analog demenstration producing well, can many wells of visual pattern analog demenstration production pressure interference phenomenon, checking pressure superposition principle, the spy provides a kind of multi-well production interwell pressure jamming-simulation method and device.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of multi-well production interwell pressure jamming-simulation method, it is characterized in that: at first open the switch of gas-holder 1, regulate air pressure regulator 2 and make that output pressure is 0.11MPa, for simulated formation 10 provides burden pressure, preventing that water from directly flowing through from top, and by simulated formation 10; Reexamine the sealing of simulated formation 10 shells, if gas leakage, the simulated formation 10 shells hold-down bolt of position that leaks gas tightly is until air tight; Opening water pump 12 immediately is extracted into water the constant pressure water tank 3 from reserve tank 13, after constant pressure water tank 3 water levels arrive overflow height, just opening Water supply switch valve 9 supplies water to simulated formation 10, reach the constant voltage head height up to piezometric tube 11 heights of water level, open the cock of water drain 17 of a simulation producing well 18 then, each piezometric tube 11 pressure of observed and recorded fall; Close the cock of water drain 17 of this simulation producing well 18 then, select to open each piezometric tube 11 pressure drop of cock of water drain 17 observed and recordeds of another simulation producing well 18 again; Close the cock of water drain 17 of this simulation producing well 18 then, open the cock of water drain 17 of two simulation producing wells 18 opening just now simultaneously, each piezometric tube 11 pressure drop of observed and recorded; Three results are analyzed, just can verify pressure superposition phenomenon; The interference phenomenon of observing other position wells or more wells only need be opened with it, and each piezometric tube 11 pressure drop of cock of water drain 17 observed and recordeds of corresponding simulating producing well 18 get final product.
It is different to observe different viscosities fluid pressure drop drop that water in the reserve tank 13 directly adopts tap water to produce the fluid of flow media or preparation certain viscosity condition as simulated oil.
Partial simulation producing well 18 is changed into the simulation water injection well, just can simulate the pressure distribution situation that different injection production well arrangements is produced.
A kind of device of implementing multi-well production interwell pressure jamming-simulation method is characterized in that: gas-holder 1 is connected with air pressure regulator 2, tracheae line 4, is connected with air admission hole 5 on the simulated formation 10 again; Reserve tank 13 is connected with constant pressure water tank 3 by water pump 12, upper hose 6; Constant pressure water tank 3 usefulness run-down pipes 7 are connected with reserve tank 13; Constant pressure water tank 3 is connected with simulated formation 10 with Water supply switch valve 9 by rising pipe 8; Piezometric tube 11 usefulness liquid level pipelines 15 are connected with simulated formation 10 by pressure tap 14; Simulation producing well 18 places are connected with ajutage 16 and cock of water drain 17; The shell that inner bag 19 simulated stratum 10 comprises.Inner bag 19 inner spaces are filled by the grains of sand.
The invention has the beneficial effects as follows: can repeatedly simulate many wells production of hydrocarbons pressure interference phenomenon repeatedly, checking pressure superposition principle, visual pattern, operating cost is low, can be used for the reservoir engineering field.
Description of drawings
Fig. 1 is pressure interference analogue means structural representation between many wells of the present invention producing well, among the figure:
1. gas-holder, 2. air pressure regulator, 3. constant pressure water tank, 4. tracheae line, 5. air admission hole, 6. upper hose, 7. run-down pipe, 8. rising pipe, 9. Water supply switch valve, 10. simulated formation, 11. piezometric tube, 12. water pumps, 13. reserve tank, 14. pressure taps, 15. liquid level pipelines, 16. ajutage, 17. cocks of water drain, 18. simulation producing wells;
Fig. 2 is the structural representation of pressure interference analogue means simulated formation 10 between many wells of the present invention producing well, among the figure: 10. simulated formation, 14. pressure taps, 18. simulation producing wells, 19. inner bags.
Embodiment
At first the silica sand of cleaning is inserted inner bag 19, put rubber blanket, build loam cake, insert tracheae line 4 from air admission hole 5, open the switch of gas-holder 1, regulate air pressure regulator 2 and make that output pressure is 0.11MPa, for simulated formation 10 provides burden pressure, preventing that water from directly flowing through from top, and by simulated formation 10; Reexamine the sealing of simulated formation 10 shells, if gas leakage, the simulated formation 10 shells hold-down bolt of position that leaks gas tightly is until air tight; Opening water pump 12 immediately is extracted into water the constant pressure water tank 3 from reserve tank 13, after constant pressure water tank 3 water levels arrive overflow height, just opening Water supply switch valve 9 supplies water to simulated formation 10, reach the constant voltage head height up to piezometric tube 11 heights of water level, open the cock of water drain 17 of a simulation producing well 18 then, each piezometric tube 11 pressure of observed and recorded fall, close the cock of water drain 17 of this simulation producing well 18 then, select to open each piezometric tube 11 pressure drop of cock of water drain 17 observed and recordeds of another simulation producing well 18 again, close the cock of water drain 17 of this simulation producing well 18 then, open the cock of water drain 17 of two simulation producing wells 18 opening just now simultaneously, each piezometric tube 11 pressure drop of observed and recorded, three results are analyzed, just can verify pressure superposition phenomenon; The interference phenomenon of observing other position wells or more wells only need be opened with it, and each piezometric tube 11 pressure drop of cock of water drain 17 observed and recordeds of corresponding simulating producing well 18 get final product.
Claims (5)
1. multi-well production interwell pressure jamming-simulation method, it is characterized in that: the switch of at first opening gas-holder (1), regulate air pressure regulator (2) and make that output pressure is 0.11MPa, for simulated formation (10) provides burden pressure, preventing that water from directly flowing through from top, and by simulated formation (10); Reexamine the sealing of simulated formation (10) shell, if gas leakage, simulated formation (10) the shell hold-down bolt of position that leaks gas tightly is until air tight; Opening water pump (12) immediately is extracted into water the constant pressure water tank (3) from reserve tank (13), after constant pressure water tank (3) water level arrives overflow height, just opening Water supply switch valve (9) supplies water to simulated formation (10), reach the constant voltage head height up to piezometric tube (11) height of water level, open the cock of water drain (17) of a simulation producing well (18) then, each piezometric tube of observed and recorded (11) pressure falls; Close the cock of water drain (17) of this simulation producing well (18) then, select to open cock of water drain (17) each piezometric tube of observed and recorded (11) pressure drop of another simulation producing well (18) again; Close the cock of water drain (17) of this simulation producing well (18) then, open the cock of water drain (17) of two simulation producing wells (18) of opening just now simultaneously, each piezometric tube of observed and recorded (11) pressure drop; Three results are analyzed, just can verify pressure superposition phenomenon; The interference phenomenon of observing other position wells or more wells only need be opened with it, and cock of water drain (17) each piezometric tube of observed and recorded (11) pressure drop of corresponding simulating producing well (18) gets final product.
2. multi-well production interwell pressure jamming-simulation method according to claim 1 is characterized in that: it is different to observe different viscosities fluid pressure drop drop that the water in the reserve tank (13) directly adopts tap water to produce the fluid of flow media or preparation certain viscosity condition as simulated oil.
3. multi-well production interwell pressure jamming-simulation method according to claim 1 is characterized in that: partial simulation producing well (18) is changed into the simulation water injection well, just can simulate the pressure distribution situation that different injection production well arrangements is produced.
4. implement the device that the described multi-well production interwell pressure jamming-simulation method of claim 1 uses for one kind, it is characterized in that: gas-holder (1) is connected with air pressure regulator (2), tracheae line (4), is connected with air admission hole (5) on the simulated formation (10) again; Reserve tank (13) is connected with constant pressure water tank (3) by water pump (12), upper hose (6); Constant pressure water tank (3) is connected with reserve tank (13) with run-down pipe (7); Constant pressure water tank (3) is connected with simulated formation (10) with Water supply switch valve (9) by rising pipe (8); Piezometric tube (11) is connected with simulated formation (10) by pressure tap (14) with liquid level pipeline (15); Simulation producing well (18) locates to be connected with ajutage (16) and cock of water drain (17); The shell that inner bag (19) simulated stratum (10) comprises.
5. device according to claim 4 is characterized in that: described inner bag (19) inner space is filled by the grains of sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101678340A CN101673482B (en) | 2009-09-30 | 2009-09-30 | Multi-well production interwell pressure jamming-simulation method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101678340A CN101673482B (en) | 2009-09-30 | 2009-09-30 | Multi-well production interwell pressure jamming-simulation method and device |
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| Publication Number | Publication Date |
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| CN101673482A CN101673482A (en) | 2010-03-17 |
| CN101673482B true CN101673482B (en) | 2011-02-02 |
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| CN2009101678340A Expired - Fee Related CN101673482B (en) | 2009-09-30 | 2009-09-30 | Multi-well production interwell pressure jamming-simulation method and device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102635390B (en) * | 2012-04-23 | 2013-12-18 | 河南理工大学 | Method, device and simulation experiment system for simulating gas pressure propagation during process of drainage production of coal-bed gas well |
| CN106169269A (en) * | 2016-08-19 | 2016-11-30 | 重庆科技学院 | Oil flow production simulation experiment device of wind |
| CN109712498B (en) * | 2019-03-07 | 2021-03-26 | 陕西延长石油（集团）有限责任公司 | Oil gas geological research analogue means |
| CN116696293B (en) * | 2023-04-14 | 2024-04-02 | 常州大学 | Identification method for injection and production well group interference of fractured anticline oil reservoir |
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