CN101265803A - Horizontal and uniform acid distribution integrated experimental device and its operation method - Google Patents
Horizontal and uniform acid distribution integrated experimental device and its operation method Download PDFInfo
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- CN101265803A CN101265803A CNA2008101057213A CN200810105721A CN101265803A CN 101265803 A CN101265803 A CN 101265803A CN A2008101057213 A CNA2008101057213 A CN A2008101057213A CN 200810105721 A CN200810105721 A CN 200810105721A CN 101265803 A CN101265803 A CN 101265803A
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Abstract
The invention discloses a comprehensive experimental device for levelly and evenly distributing acid, which belongs to the petroleum exploitation field. The experimental device consists of two sections of oil pipes and a sleeve; the two sections of oil pipes are packed by an expanding packer, and the two sections of oil pipes is covered with a sleeve; a gap is left between the oil pipe and the sleeve; the two sections of oil pipes and the sleeve are respectively provided with a minisize flux control valve; the two sections of oil pipes are respectively provided with a flow meter; the two ends of the sleeve which corresponds to the two sections of oil pipes are respectively provided with a pressure gauge. The operation method includes measuring the liquid pressure at the two ends of the sleeve and the flux in a certain period, then feeding back the measured results to the real products, and choosing corresponding minisize flux control valve combination according to the permeability of the base. The device can simulate the heterogeneity characteristics of the oil reservoir in the real oil field and reasonably distribute the minisize flux control valve on the acid pipe according to the permeability in order to realize the purpose of even acid distribution and even acidification by the level and even acid distribution pipe.
Description
Technical field
The present invention relates to a kind of field of petroleum exploitation cloth acid experimental facilities and method of operating thereof, on average even acid distribution integrated experimental device of particularly a kind of field of petroleum exploitation water and method of operating thereof.
Background technology
In oilfield development process, according to oil field adjustment, transformation, perfect, the needs of taping the latent power, according to production engineering specifications, utilize cover ground and underground equipment, instrument, oil, well are taked various down-holes technical measures, reach to improve and annotate the amount of adopting, improve oil reservoir seepage flow condition and oil, well technology status, improve the purpose of rate of oil production and ultimate recovery.This a series of down-holes construction technology technology is referred to as underground work.
Acidifying is a kind of of underground work, acidifying is a kind of by add acid in oil well, make acid solution radially infiltrate the stratum generally along oil well, thereby expandable pores space under the effect of acid solution, particle obstruction in the dissolving space, eliminate near the harmful effect that the pit shaft in-place permeability is reduced, reach the acid treatment process of effect of increasing production.
When in oil well, carrying out acidizing treatment, generally be to come in oil well, to annotate acid by the micro flow control valve is installed on the cloth acid tube.The micro flow control valve of installing on the cloth acid tube is a kind of replaceable nozzle that is installed on the cloth acid tube, bores the hole of different-diameter on replaceable nozzle, controls the acid solution flow by the aperture of nozzle.
In actual oil field, because oil reservoir has non-homogeneity, its permeability is also inequality, and the micro flow control valve of arranging different apertures according to different permeability needs is to reach the purpose of uniform acid distribution.
But in a single day actual field situation complexity, cloth acid tube are transferred to and just are difficult in the oil field change again, therefore need the good micro flow control valve of mounting arrangements on the cloth acid tube in advance.
Therefore, how to simulate the non-homogeneity characteristics of oil reservoir in the actual oil field, according to the micro flow control valve on its permeability reasonable Arrangement cloth acid tube, comprise the layout density of micro flow control valve and the size in aperture, to reach the purpose that makes horizontal cloth acid tube uniform acid distribution, even acidifying, be a new problem of field of petroleum exploitation.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective that is difficult to simulate the actual conditions of oil reservoir in the actual oil field in the prior art, a kind of horizontal uniform acid distribution integrated experimental device and method of operating thereof are provided, it can simulate the non-homogeneity characteristics of oil reservoir in the actual oil field, according to the micro flow control valve on its permeability reasonable Arrangement cloth acid tube, comprise the layout density of micro flow control valve and the size in aperture, to reach the purpose that makes horizontal cloth acid tube uniform acid distribution, even acidifying.
For addressing the above problem, the present invention adopts following technical scheme:
A kind of horizontal uniform acid distribution integrated experimental device of the present invention, described experimental facilities is made of two sections oil pipes and a sleeve pipe, between described two sections oil pipes by the inflatable packer packing, two sections oil pipes are set with a sleeve pipe outward, leave the gap between oil pipe and the sleeve pipe, be furnished with the micro flow control valve respectively on two sections oil pipes and the sleeve pipe, be separately installed with flow meter on described two sections oil pipes, described sleeve pipe is separately installed with pressure gauge corresponding to the two ends of two sections oil pipes.
Described sleeve pipe is 5-1/2, and " pipe, described oil pipe is 2-7/8 " is managed.
Described micro flow control valve is an installed mesh type miniature flow control valve, and described micro flow control valve is provided with through hole, and upper and lower two end faces of described through hole are equipped with two net sheets respectively.
In two net sheets that the upper and lower end face of described through hole is installed, the Intranet sheet is a screen pack, and external net slice is a diffuser screen, and the order number of screen pack is less than the order number of diffuser screen.
The present invention discloses a kind of method of operating of described horizontal uniform acid distribution integrated experimental device, oil pipe, sleeve pipe, packer, pipeline are connected, corresponding micro flow control valve combination is installed on oil pipe and sleeve pipe, measures sleeve pipe two ends fluid pressure and flow within a certain period of time.Test result is fed back on the actual product,, actual cloth acid tube is selected for use corresponding micro flow control valve combination according to the permeability on stratum.
The present invention selects sleeve pipe and the oil pipe main body as experimental facilities respectively for use, the micro flow control valve is installed respectively on oil pipe and sleeve pipe, by measuring and calculating to pressure on oil pipe and the sleeve pipe and flow, measure the flow in sleeve pipe two ends fluid pressure and the oil pipe within a certain period of time, select micro flow control valve on oil pipe and the sleeve pipe for use different combining form according to pressure and flow, to reach under the different pressure and flow condition, the emitted dose of the micro flow control valve on sleeve pipe and the oil pipe is basic identical, promptly reaches the purpose of balanced cloth acid.
Again above-mentioned test result is fed back on the actual product, the cloth acid tube that is lowered to pit shaft is carried out the layout of micro flow control valve according to experimental result, different pressures and the different permeabilities of flow corresponding to the stratum, permeability according to the stratum, the every technical data of micro flow control valve is measured calculating, select corresponding micro flow control valve combination for use, basic identical with the acid solution flow of each micro flow control valve under the various flows dynamic resistance that guarantees corresponding cloth acid tube, thereby guarantee that the every section acid solution amount of permeating of cloth acid tube that is lowered in the pit shaft is basic identical in oil reservoir, be not subjected to the influence of oil reservoir permeability.
The beneficial effect of technical scheme provided by the invention is: the present invention simulates the non-homogeneity characteristics of oil reservoir in the actual oil field by horizontal uniform acid distribution integrated experimental device, according to the micro flow control valve on its permeability reasonable Arrangement cloth acid tube, comprise the layout density of micro flow control valve and the size in aperture, to reach the purpose that makes horizontal cloth acid tube uniform acid distribution, even acidifying.
Description of drawings
Fig. 1 is a horizontal uniform acid distribution integrated experimental device structural representation of the present invention.
Fig. 2 is an installed mesh type miniature flow control valve structural representation of the present invention.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of horizontal uniform acid distribution integrated experimental device of the present invention, described experimental facilities is made of 1,2 and sleeve pipes 3 of two sections oil pipes, between described two sections oil pipes by inflatable packer 4 packings, two sections oil pipes are set with a sleeve pipe outward, leave between oil pipe and the sleeve pipe on 5, two sections oil pipes in gap and the sleeve pipe and are furnished with micro flow control valve 6 respectively, be separately installed with flow meter 7 on described two sections oil pipes, described sleeve pipe is separately installed with pressure gauge 8 corresponding to the two ends of two sections oil pipes.
The direction of arrow is fluid flow direction among the figure.
Described sleeve pipe is 5-1/2, and " pipe, described oil pipe is 2-7/8 " is managed.
As shown in Figure 2, described micro flow control valve is an installed mesh type miniature flow control valve 6, and described micro flow control valve is provided with through hole 61, and upper and lower two end faces of described through hole are equipped with two net sheets 62,63 respectively.
In two net sheets that the upper and lower end face of described through hole is installed, the Intranet sheet is a screen pack 62, and external net slice is a diffuser screen 63, and the order number of screen pack is less than the order number of diffuser screen.
The method of operating of described horizontal uniform acid distribution integrated experimental device is: oil pipe, sleeve pipe, packer, pipeline are connected, corresponding micro flow control valve combination is installed on oil pipe and sleeve pipe, measures sleeve pipe two ends fluid pressure and flow within a certain period of time.Test result is fed back on the actual product,, actual cloth acid tube is selected for use corresponding micro flow control valve combination according to the permeability on stratum.
The present invention selects sleeve pipe and the oil pipe main body as experimental facilities respectively for use, the micro flow control valve is installed respectively on oil pipe and sleeve pipe, by measuring and calculating to pressure on oil pipe and the sleeve pipe and flow, measure the flow in sleeve pipe two ends fluid pressure and the oil pipe within a certain period of time, select micro flow control valve on oil pipe and the sleeve pipe for use different combining form according to pressure and flow, to reach under the different pressure and flow condition, the emitted dose of the micro flow control valve on sleeve pipe and the oil pipe is basic identical, promptly reaches the purpose of balanced cloth acid.
Again above-mentioned test result is fed back on the actual product, the cloth acid tube that is lowered to pit shaft is carried out the layout of micro flow control valve according to experimental result, different pressures and the different permeabilities of flow corresponding to the stratum, permeability according to the stratum, the every technical data of micro flow control valve is measured calculating, select corresponding micro flow control valve combination for use, basic identical with the acid solution flow of each micro flow control valve under the various flows dynamic resistance that guarantees corresponding cloth acid tube, thereby guarantee that the every section acid solution amount of permeating of cloth acid tube that is lowered in the pit shaft is basic identical in oil reservoir, be not subjected to the influence of oil reservoir permeability.
The present invention simulates the non-homogeneity characteristics of oil reservoir in the actual oil field by horizontal uniform acid distribution integrated experimental device, according to the micro flow control valve on its permeability reasonable Arrangement cloth acid tube, comprise the layout density of micro flow control valve and the size in aperture, to reach the purpose that makes horizontal cloth acid tube uniform acid distribution, even acidifying.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1, a kind of horizontal uniform acid distribution integrated experimental device, it is characterized in that: described experimental facilities is made of two sections oil pipes and a sleeve pipe, between described two sections oil pipes by the inflatable packer packing, two sections oil pipes are set with a sleeve pipe outward, leave the gap between oil pipe and the sleeve pipe, be furnished with the micro flow control valve respectively on two sections oil pipes and the sleeve pipe, be separately installed with flow meter on described two sections oil pipes, described sleeve pipe is separately installed with pressure gauge corresponding to the two ends of two sections oil pipes.
2, horizontal uniform acid distribution integrated experimental device as claimed in claim 1 is characterized in that: described sleeve pipe is 5-1/2, and " pipe, described oil pipe is 2-7/8 " is managed.
3, horizontal uniform acid distribution integrated experimental device as claimed in claim 2, it is characterized in that: described micro flow control valve is an installed mesh type miniature flow control valve, described micro flow control valve is provided with through hole, and upper and lower two end faces of described through hole are equipped with two net sheets respectively.
4, horizontal uniform acid distribution integrated experimental device as claimed in claim 3 is characterized in that: in two net sheets that the upper and lower end face of described through hole is installed, the Intranet sheet is a screen pack, and external net slice is a diffuser screen, and the order number of screen pack is less than the order number of diffuser screen.
5, a kind of method of operating of the arbitrary described horizontal uniform acid distribution integrated experimental device as claim 1-4, it is characterized in that: oil pipe, sleeve pipe, packer, pipeline are connected, corresponding micro flow control valve is installed on oil pipe and sleeve pipe, is measured sleeve pipe two ends fluid pressure and at flow.Test result is fed back on the actual product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101057213A CN101265803B (en) | 2008-04-30 | 2008-04-30 | Horizontal and uniform acid distribution integrated experimental device and its operation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101057213A CN101265803B (en) | 2008-04-30 | 2008-04-30 | Horizontal and uniform acid distribution integrated experimental device and its operation method |
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| CN101265803A true CN101265803A (en) | 2008-09-17 |
| CN101265803B CN101265803B (en) | 2011-06-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476459B (en) * | 2009-01-16 | 2012-01-04 | 长安大学 | Experimental device and method for simulating real oil well acidation |
| CN110905495A (en) * | 2019-11-26 | 2020-03-24 | 青海九0六工程勘察设计院 | Method for judging critical water flow rate of stratum blockage |
| CN111734352A (en) * | 2020-07-17 | 2020-10-02 | 西南石油大学 | Acid distributing effect is effectual even acid distributing device |
-
2008
- 2008-04-30 CN CN2008101057213A patent/CN101265803B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476459B (en) * | 2009-01-16 | 2012-01-04 | 长安大学 | Experimental device and method for simulating real oil well acidation |
| CN110905495A (en) * | 2019-11-26 | 2020-03-24 | 青海九0六工程勘察设计院 | Method for judging critical water flow rate of stratum blockage |
| CN110905495B (en) * | 2019-11-26 | 2021-05-25 | 青海九0六工程勘察设计院 | Method for judging critical water flow rate of stratum blockage |
| CN111734352A (en) * | 2020-07-17 | 2020-10-02 | 西南石油大学 | Acid distributing effect is effectual even acid distributing device |
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| Publication number | Publication date |
|---|---|
| CN101265803B (en) | 2011-06-29 |
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Assignee: JILIN DONGXIN PETROLEUM ENGINEERING TECHNOLOGY CO., LTD. Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2012990000369 Denomination of invention: Horizontal and uniform acid distribution integrated experimental device and its operation method Granted publication date: 20110629 License type: Exclusive License Open date: 20080917 Record date: 20120531 |
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Effective date of registration: 20210425 Address after: 101400 room 205, cultural service center, building 1, courtyard 5, qingxiuyuan street, Jingjia Road, Yanqi Town, Huairou District, Beijing Patentee after: Anton Institute of Geological Engineering Technology (Beijing) Co.,Ltd. Address before: 100102, No. 8 Tsui Xi Road, East Lake, Beijing, Chaoyang District Patentee before: Anton Bailin Oilfield Technologies (Beijing) Co.,Ltd. |