CN201289478Y - Physical simulation device for visualization of acid liquor flow reaction in acid pressing gap - Google Patents

Physical simulation device for visualization of acid liquor flow reaction in acid pressing gap Download PDF

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Publication number
CN201289478Y
CN201289478Y CNU2008201411364U CN200820141136U CN201289478Y CN 201289478 Y CN201289478 Y CN 201289478Y CN U2008201411364 U CNU2008201411364 U CN U2008201411364U CN 200820141136 U CN200820141136 U CN 200820141136U CN 201289478 Y CN201289478 Y CN 201289478Y
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China
Prior art keywords
acid
outage
slit
inlet opening
bonnet
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Expired - Fee Related
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CNU2008201411364U
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Chinese (zh)
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李小刚
杨兆中
孙健
蒋海
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Southwest Petroleum University
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Southwest Petroleum University
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Abstract

The utility model relates to a visualization physical simulation device of acid fluid flow reaction in acid fracturing slit in the oil field chemical and acid fracturing laboratory and research laboratory. The device can realize the visualization simulation of acid fluid flow reaction in a high-temperature and high-pressure slit, and measure related parameters. The technical scheme is that a convex stainless back cover is inserted in and connected with a concave stainless front frame through screws to from a hexahedron box body; fluid inlet holes and fluid outlet holes are distributed on the front surface of the box body; a rectangular observation window is installed among the fluid inlet holes; a groove where a special glass is installed is formed on the inner side of the observation window; washers are laid on two sides on the inner wall of the front surface of the box body; a rock plate which can react with acid is placed on the other side of each washer; a front slit is formed between the special glass and the rock plate; a back slit is formed between the rock plate and the back cover; fluid inlet holes and fluid outlet holes are formed on the back cover; an image collection equipment is installed on the front of the observation window to record the acid flow reaction process in the slit. The device is used in visualization simulation of acid fluid flow reaction, proppant laying, water-oil displacement, etc.

Description

The visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam
Technical field
The utility model relates to the visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam that is used for oilfield chemistry and acid fracturing laboratory, research department, belongs to the acid fracturing analogue means.
Technical background
Acid fracturing is the important well stimulation of carbonatite hydrocarbon zone.Acid solution flowing reactive process is closely related in the effect of increasing production of acid fracturing and the man-made fracture.Physical simulation is a research acid solution flowing reactive process method commonly used.At present parallel-plate slit arrangement simulation acid solution flowing reactive processes that adopt more.This type of device comprises following a few kind: (1) " clear glass parallel-plate+clear glass parallel-plate " or " transparent resin parallel-plate+transparent resin parallel-plate " analogue means, this type of device can be realized the visual of acid solution flow process well, but can't simulate sour rock reaction, very weak with actual acid solution flowing reactive similar process; (2) " transparency glass plate+reactive rock panel " analogue means, this type of device can be realized the visual of acid solution flowing reactive process under the sour rock reaction conditions, and be very difficult but adjustment, pressure are regulated, seal between plate etc., only can simulate at normal temperatures and pressures; (3) " reactive rock panel+reactive rock panel " analogue means, this type of device can be simulated the acid solution flowing reactive process under the High Temperature High Pressure, but the flowing reactive process is not visible, the important phenomenons such as acid solution fingering that take place in can't observation analysis flowing reactive process.In a word, present acid solution fingering analogue means also can't be realized the acid solution flowing reactive visual Simulation under High Temperature High Pressure and the sour rock reaction conditions simultaneously.
Summary of the invention
The purpose of this utility model is: under high-temperature and high-pressure conditions, observe the situation that acid solution flows and reacts in reactive simulation fracture, and mensuration has related parameter, spy that the visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam is provided.
In order to achieve the above object, the utility model solves technical scheme that this technical matters is taked: the visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam, be made up of bonnet, front baffle, inlet opening, outage, view window, special glass, rock panel, slit, seal, retaining valve and image capture device, its design feature is: inserted spill stainless steel front baffle and be connected to form six casings through screw rod by convex stainless steel bonnet; Vertically be arranged with front inlet opening and front outage about the casing front respectively; Between front inlet opening and front outage, the rectangle view window is installed; The groove that heat resisting and pressure resisting special glass is installed is arranged in the view window inboard; All lay pad in the casing front inside wall left and right sides, the opposite side of pad place length and width be slightly less than the cabinet wall length and width can with the rock panel of acid reaction; Form preceding slit between special glass and the rock panel for the acid solution flowing reactive; Form the back slit between bonnet and the rock panel, bonnet is provided with back side inlet opening, back side outage, and for the usefulness of rock panel heating, pressure fluid turnover back slit, image capture device is installed in the dead ahead of view window.
The A seal of flexibility, acidproof, heatproof is installed between special glass and the view window groove walls; The B seal of flexible close, acidproof, heatproof is installed between four inwalls up and down at rock panel and front baffle; The C seal of flexibility, acidproof, heatproof is installed at the surface of contact of bonnet and front baffle.Front baffle is provided with through hole for positive four jiaos, and rock panel dismounting push rod is installed in through hole; Bonnet is provided with through hole for four jiaos, and bonnet dismounting push rod is installed in through hole.The front inlet opening is connected with the A retaining valve with pipeline; The front outage is connected with the B retaining valve with pipeline; Back side inlet opening is connected with the C retaining valve with pipeline; Back side outage is connected with the D retaining valve with pipeline, flows out from inlet opening inflow, outage to guarantee fluid, and keeps certain back pressure at leakage fluid dram.In front inlet opening and front outage, the temperature and pressure sensor is installed, the fluid temperature (F.T.) and the pressure of slit before being used for detecting; In inlet opening and the back side outage temperature and pressure sensor is installed overleaf, is used for detecting the fluid temperature (F.T.) and the pressure of back slit.Image capture device sees through the process of view window record acid solution flowing reactive.
Compared with prior art, useful effect of the present utility model is:
(1) plug-in type body structure can provide pressure-bearing and fluid-tight ability better.
(2) structure of double aperture slit makes hot fluid pass through heating and the pressurization of back slit to rock panel, thereby the confined pressure and the environment temperature of preceding slit are provided.
(3) lay propping agent in preceding crack, this device can be realized the visual Simulation of sandfrac propping agent process of deployment under the High Temperature High Pressure.
(4) lay formation particle in preceding crack, this device also can be realized the visual Simulation of water displacing oil under the High Temperature High Pressure, polymer flooding or surfactant flooding process.
Description of drawings
Fig. 1 is the Facad structure synoptic diagram of the visual physical simulating device of acid solution flowing reactive in the utility model acid fracturing seam.
Fig. 2 is the structure synoptic diagram of the visual physical simulating device of acid solution flowing reactive in the utility model acid fracturing seam.
Fig. 3 is the A-A cross-sectional view of the visual physical simulating device of acid solution flowing reactive in the utility model acid fracturing seam.
Among the figure: 1. bonnet, 2. front baffle, 3. screw rod, 4. front inlet opening, 5. front outage, 6. view window, 7. special glass, 8. pad, 9. rock panel, 10. before slit, 11. back slits, 12. back side inlet openings, 13. back side outage, 14.A seal, 15.B seal, 16.C seal, 17. rock panel dismounting push rod, 18. bonnets dismounting push rod, 19.A retaining valve, 20.B retaining valve, 21.C retaining valve, 22.D retaining valve, 23. image capture devices.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, the visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam, profile is to be inserted spill stainless steel front baffle 2 and connected six casings that form through screw rod 3 by convex stainless steel bonnet 1, and bonnet 1 seals by C seal 16 flexible, acidproof, heatproof with the surface of contact of front baffle 2; Vertically be arranged with the front outage 5 that does not wait in the front inlet opening 4 that do not wait in the aperture and aperture about the casing front respectively; Between front inlet opening 4 and front outage 5, the positive hollow out of casing is provided with rectangle view window 6; Be provided for placing the groove of heat resisting and pressure resisting special glass 7 in view window 6 inboards, seal by A seal 14 flexible, acidproof, heatproof between special glass 7 and view window 6 groove walls; Lay pad 8 in the casing front inside wall left and right sides, the opposite side of pad 8 place can with the rock panel 9 of acid liquid reaction, rock panel 9 and front baffle 2 seal by flexible B seal 15 close, acidproof, heatproof between four inwalls up and down, form preceding slit 10 between special glass 7 and the rock panel 9, the width adjusting of slit 10 before realizing by the thickness of regulating pad 8 for the acid solution flowing reactive; Front inlet opening 4 by pipeline link to each other with A retaining valve 19, front outage 5 links to each other with B retaining valve 20 by pipeline, with guarantee fluid from inlet opening flow into, outage flows out, and keeps certain back pressure at leakage fluid dram; There is back slit 11 between bonnet 1 and the rock panel 9; Bonnet 1 is provided with back side inlet opening 12, back side outage 13; Back side inlet opening 12 by pipeline link to each other with C retaining valve 21, back side outage 13 links to each other with D retaining valve 22 by pipeline, with guarantee fluid from inlet opening flow into, outage flows out, and keeps certain back pressure at leakage fluid dram.Front baffle 2 positive four jiaos through hole is set, and rock panel dismounting push rod 17 is installed therein, bonnet is provided with through hole for 1 four jiaos, and bonnet dismounting push rod 18 is installed therein; Equal mounting temperature sensor and pressure transducer in front inlet opening 4, front outage 5, back side inlet opening 12, the back side outage 13.
The course of work of the present utility model:
Before the simulation: earlier place special glass, pad, rock panel in the former frame frame successively, and the corresponding surface of contact of good seal, cover bonnet then and lock with screw rod.
In the simulation: acid solution enters preceding slit through A retaining valve, front inlet opening, image capture device sees through the process of the flowing reactive of view window record acid solution in preceding slit, current slit internal pressure is during greater than the conducting pressure of B retaining valve, and acid solution is discharged through front outage, B retaining valve in the seam; Add hot fluid slit after C retaining valve, back side inlet opening enter, to rock panel heating, pressurization, when the pressure in the slit of back during greater than the conducting pressure of D retaining valve, hot fluid is discharged through back side outage, D retaining valve in the seam.
Simulation back: lay down screw rod earlier, rotate bonnet unloading push rod, unload bonnet, rotate rock panel unloading push rod again, unload rock panel.

Claims (5)

1, the visual physical simulating device of acid solution flowing reactive in a kind of acid fracturing seam, form by bonnet, front baffle, inlet opening, outage, view window, special glass, rock panel, slit, seal, retaining valve and image capture device, it is characterized in that: insert spill stainless steel front baffle (2) and be connected to form six casings through screw rod (3) by convex stainless steel bonnet (1); Vertically be arranged with front inlet opening (4) and front outage (5) about the casing front respectively; Between front inlet opening (4) and front outage (5), rectangle view window (6) is installed; The groove that heat resisting and pressure resisting special glass (7) is installed is arranged in view window (6) inboard; All lay pad (8) in the casing front inside wall left and right sides, the opposite side of pad (8) place length and width be slightly less than the cabinet wall length and width can with the rock panel (9) of acid reaction; Form preceding slit (10) between special glass (7) and the rock panel (9) for the acid solution flowing reactive; Form back slit (11) between bonnet (1) and the rock panel (9), bonnet (1) is provided with back side inlet opening (12), back side outage (13), and image capture device (23) is installed in the dead ahead of view window.
2, visual physical simulating device according to claim 1 is characterized in that: the A seal (14) that flexibility, acidproof, heatproof are installed between special glass (7) and view window (6) groove walls; The B seal (15) of flexible close, acidproof, heatproof is installed between four inwalls up and down at rock panel (9) and front baffle (2); The C seal (16) of flexibility, acidproof, heatproof is installed at the surface of contact of bonnet (1) and front baffle (2).
3, visual physical simulating device according to claim 1 is characterized in that: front baffle (2) is provided with through hole for positive four jiaos, and rock panel dismounting push rod (17) is installed in through hole; Bonnet is provided with through hole for (1) four jiao, and bonnet dismounting push rod (18) is installed in through hole.
4, visual physical simulating device according to claim 1 is characterized in that: front inlet opening (4) is connected with A retaining valve (19) with pipeline; Front outage (5) is connected with B retaining valve (20) with pipeline; Back side inlet opening (12) is connected with C retaining valve (21) with pipeline; Back side outage (13) is connected with D retaining valve (22) with pipeline.
5, visual physical simulating device according to claim 1 is characterized in that: in front inlet opening (4) and front outage (5) the temperature and pressure sensor is installed; In inlet opening (12) and the back side outage (13) the temperature and pressure sensor is installed overleaf.
CNU2008201411364U 2008-10-30 2008-10-30 Physical simulation device for visualization of acid liquor flow reaction in acid pressing gap Expired - Fee Related CN201289478Y (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101864949A (en) * 2010-06-18 2010-10-20 西南石油大学 Test device and method for simulating acid etching crack flow guide capability
CN102587886A (en) * 2012-03-20 2012-07-18 西南石油大学 Testing device and testing method for flow conductivity of acid-eroded fractures
CN102590888A (en) * 2012-02-20 2012-07-18 中国石油大学(华东) Experimental device for simulating spreading of propping agent in crack and application thereof
CN102879546A (en) * 2012-09-25 2013-01-16 成都理工大学 Method for testing acidic rock reaction dynamic parameters for simulating flat-plate flow
CN102928556A (en) * 2012-10-29 2013-02-13 西南石油大学 Device and method for large-size visual physical simulation of fingering of acid liquid in acid fracturing crack
CN108519467A (en) * 2018-05-24 2018-09-11 西安石油大学 A kind of transparent parallel crack device, Zan Biezao branches seam analogue experiment installation and simulation experiment method
CN109386275A (en) * 2017-08-07 2019-02-26 中国石油化工股份有限公司 The visual experimental apparatus and experimental method flowed in simulation rock crack
CN110208265A (en) * 2019-06-20 2019-09-06 中国石油大学(华东) Acid-rock reaction list rock beam board slit simulation apparatus and working method
CN114200083A (en) * 2021-12-07 2022-03-18 中海石油(中国)有限公司 Chemical oil displacement full-process physical simulation device and method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101864949A (en) * 2010-06-18 2010-10-20 西南石油大学 Test device and method for simulating acid etching crack flow guide capability
CN101864949B (en) * 2010-06-18 2011-08-10 西南石油大学 Test device and method for simulating acid etching crack flow guide capability
CN102590888B (en) * 2012-02-20 2014-04-16 中国石油大学(华东) Experimental device for simulating spreading of propping agent in crack and application thereof
CN102590888A (en) * 2012-02-20 2012-07-18 中国石油大学(华东) Experimental device for simulating spreading of propping agent in crack and application thereof
CN102587886A (en) * 2012-03-20 2012-07-18 西南石油大学 Testing device and testing method for flow conductivity of acid-eroded fractures
CN102879546A (en) * 2012-09-25 2013-01-16 成都理工大学 Method for testing acidic rock reaction dynamic parameters for simulating flat-plate flow
CN102879546B (en) * 2012-09-25 2014-08-06 成都理工大学 Method for testing acidic rock reaction dynamic parameters for simulating flat-plate flow
CN102928556A (en) * 2012-10-29 2013-02-13 西南石油大学 Device and method for large-size visual physical simulation of fingering of acid liquid in acid fracturing crack
CN109386275A (en) * 2017-08-07 2019-02-26 中国石油化工股份有限公司 The visual experimental apparatus and experimental method flowed in simulation rock crack
CN109386275B (en) * 2017-08-07 2022-02-11 中国石油化工股份有限公司 Visual experiment device and method for simulating flow in rock crack
CN108519467A (en) * 2018-05-24 2018-09-11 西安石油大学 A kind of transparent parallel crack device, Zan Biezao branches seam analogue experiment installation and simulation experiment method
CN108519467B (en) * 2018-05-24 2023-11-03 西安石油大学 Transparent parallel plate crack device, temporary holding manufactured branch crack simulation experiment device and simulation experiment method
CN110208265A (en) * 2019-06-20 2019-09-06 中国石油大学(华东) Acid-rock reaction list rock beam board slit simulation apparatus and working method
CN114200083A (en) * 2021-12-07 2022-03-18 中海石油(中国)有限公司 Chemical oil displacement full-process physical simulation device and method
CN114200083B (en) * 2021-12-07 2024-02-23 中海石油(中国)有限公司 Chemical agent oil displacement whole-flow physical simulation device and method

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Granted publication date: 20090812

Termination date: 20121030