CN103175750B - Gel drainage rate testing device and testing method - Google Patents
Gel drainage rate testing device and testing method Download PDFInfo
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- CN103175750B CN103175750B CN201310088759.5A CN201310088759A CN103175750B CN 103175750 B CN103175750 B CN 103175750B CN 201310088759 A CN201310088759 A CN 201310088759A CN 103175750 B CN103175750 B CN 103175750B
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Abstract
The invention relates to a gel drainage rate testing device and a gel drainage rate testing method for testing the gel drainage rate of special gel ZND between simulation devices. With the testing device and the testing method provided by the invention, scientific basis and necessary experimental data are provided for application of the special gel to the oil field and the research on the properties of the special gel. The technical proposal is as follows: a nitrogen bottle pipeline is connected to a low-pressure regulating valve and then connected with an inlet valve; an automatic pressure controller is connected with the inlet valve and a vent valve and connected with a gas container; the gas container is further connected to a left-side mobile indicating liquid tube and a drain valve is mounted below the left-side mobile indicating liquid tube; left and right mobile indicating liquid tubes are connected to the left and right sections of a parallel plate stratum simulator; a measuring cylinder is connected above the right mobile indicating liquid tube and a conduit with a switch is connected below the right mobile indicating liquid tube; the conduit extends into a liquid storage cup which is placed on an electronic scale; and a fixed iron plate is arranged at the rear face of the device and an organic glass plate is arranged at the front face of the same, and the fixed iron plate and the organic glass plate are fixed by screws. The testing device is provided with the transparent organic glass plate so that the process is visual, and gas as a power source so as to accurately control pressure; and the testing device and the testing method are used for testing the drainage of the special gel ZND.
Description
Technical field
The present invention relates to a kind of gel drainage rate proving installation for testing lost circulation material special gel ZND discharge rate size between parallel-plate under normal temperature and pressure and method of testing.
Background technology
Along with the development of petroleum industry, the well number of required drilling well also gets more and more, and drilling depth is also more and more darker, and in drilling process all ubiquity have the situation of leakage to occur.Special in Sichuan eastern Sichuan Basin, leakage situation frequently occur and also partial picture very serious, the difficulty controlled leakage is also very large.Find according to analysis in recent years, the situation of leakage generally betides in the drilling process of each bore.Wherein general leakage accounts for more than 50%, and disposable leak stopping success ratio can reach 70%; Severe circulation loss accounts for 20% ~ 30%, and the leak stopping success ratio of severe circulation loss is not high, generally will through the success of the ability of leak stopping for several times, the situation sometimes also having recurrence occurs, severe mud losses accounts for 10% ~ 20%, and leakage all can cause huge economy, human and material resources to lose to engineering, and greatly extends the duration.
Special gel ZND is the new polymers lost circulation additive of the sub-academician's development in Southwest Petrol University Luoping, for the feature of slit formation, Caves leakage, based on supramolecular chemistry and structural fluid theory, a kind of water-soluble high-molecular material synthesized by introducing specific function group on macromolecular chain.Current special gel ZND obtains application on the circulation problems in part oil field, achieves certain success.For the specific performance, particularly gel of understanding special gel ZND arrange the ability of water in the earth formation, it is a problem merited attention.Do not have special instrument under simulated formation pressure condition, the discharge rate of special gel can be tested at present.
Summary of the invention
The object of the invention is: in order to the discharge rate of scientific evaluation special gel ZND under normal temperature condition, use special gel ZND for oil field and provide the foundation of science and necessary experimental data to its performance research, spy provides a kind of gel drainage rate proving installation and method of testing.
In order to achieve the above object.The present invention solves the technical scheme that this technical matters adopts: a kind of gel drainage rate proving installation is made up of nitrogen supply (NS) and control system, stratum simulation system, reservoir system, recording geometry and pressure testing system.Its primary structure overview is: the nitrogen supply (NS) be made up of nitrogen cylinder and low pressure regulating pressure valve, gas container, gas admittance valve and air outlet valve and control system are for package unit provides stable and pressure source that is that continue, assurance device can not cause the failure of experiment in test process because of the instability of pressure, the power section of this part and device.The stratum simulation system be made up of poly (methyl methacrylate) plate, fixing iron plate, screw and nut, the solid matter that can fill, down-hole Different Strata condition is simulated, because the gap between poly (methyl methacrylate) plate and fixing iron plate is can continuously adjustable, so a very high precision can be reached to the simulation of down-hole fracture width.Add and can add solid matter wherein to fill, rough sinuous configuration in stratum can also be simulated.By the reservoir system moving left indicator solution pipe, the indicator solution pipe that moves right forms, special gel ZND and indicator solution can be preserved wherein.The pressure testing system be made up of pressure automatic control instrument, liquid storing cup, electronic balance, can calculate the starting pressure size of special gel ZND.The recording geometry be made up of mobile indicator solution, graduated cylinder and video camera, can, except utilizing the motion conditions of visual inspection special gel ZND in instrument, can also utilize video camera continuously recording to record by motion process, observation analysis repeatedly.
A kind of gel drainage rate proving installation, be made up of nitrogen cylinder, low pressure regulating pressure valve, tensimeter, gas admittance valve, air release, pressure automatic control instrument, gas container, parallel-plate stratum analogue means, graduated cylinder, video camera A, video camera B, left side mobile indicator solution pipe, the mobile indicator solution pipe in right side, liquid storing cup and electronic balance, its architectural feature is: nitrogen cylinder bottleneck pipeline is connected with low pressure regulating pressure valve, low pressure regulating pressure valve is provided with tensimeter, and low pressure regulating pressure valve outlet pipeline connects gas admittance valve; Pressure automatic control instrument left end is connected with gas admittance valve, and right-hand member is connected with air release, and middle part is connected with gas container; Gas container threeway pipeline is connected with pressure automatic control instrument, and the other end of threeway pipeline connects the mobile indicator solution pipe in left side, is provided with tapping valve below the mobile indicator solution pipe in left side; The right side of the mobile indicator solution pipe in left side is connected with parallel-plate stratum analogue means, is connected with the mobile indicator solution pipe in right side on the right side of the analogue means of parallel-plate stratum; Connect graduated cylinder, connecting band switch conduit below the mobile indicator solution pipe in right side above the mobile indicator solution pipe in right side, stretch into below conduit in liquid storing cup, the below of liquid storing cup arranges electronic balance; Be provided with a video camera A in the side of graduated cylinder, record graduated cylinder middle finger shows the change of liquid; A video camera B is installed outside the analogue means of parallel-plate stratum, record special gel ZND motion conditions wherein.In parallel-plate stratum analogue means surrounding, screw is installed to fix.
The method of testing of apparatus of the present invention is: be first placed on horizontal experiment table by above-mentioned proving installation, take off the poly (methyl methacrylate) plate of parallel-plate stratum analogue means, according to the requirement of different experiments, the fixing monolithic part of parallel-plate stratum analogue means is processed, be filled into solid matter, to reach the object simulating dissimilar stratum, in the analogue means of parallel-plate stratum, be full of indicator solution; Then poly (methyl methacrylate) plate is placed on the fixing iron plate of parallel-plate stratum analogue means, installs screw and screw; On the left of the analogue means of parallel-plate stratum, add special gel ZND in mobile indicator solution pipe, on the right side of the analogue means of parallel-plate stratum, add indicator solution in mobile indicator solution pipe; Check that gas admittance valve and air release should be in closed condition, check that the switch of the belt switch conduit on the right side of the analogue means of parallel-plate stratum below mobile indicator solution pipe should be in closed condition, liquid storing cup is placed on electronic balance, electronic balance to be placed on below the mobile indicator solution pipe in right side below belt switch conduit, to open electronic balance switch; Slowly open nitrogen cylinder switch, slowly open gas admittance valve, gas is allowed to enter gas container, after gas container is full of, the special gel ZND that nitrogen can promote on the left of the analogue means of parallel-plate stratum in mobile indicator solution pipe moves in the analogue means of parallel-plate stratum, when special gel ZND starts to enter parallel-plate stratum analogue means, open belt switch conduit below the mobile indicator solution pipe in right side, indicator solution is discharged in liquid storing cup along belt switch conduit; Open video camera A and video camera B; On the right side of the analogue means of parallel-plate stratum, in mobile indicator solution pipe, indicator solution is extruded, and with the change of the liquid level of indicator solution in graduated cylinder, can observe the pace of special gel ZND in the analogue means of parallel-plate stratum and velocity variations rule very intuitively.The volume of the indicator solution in liquid storing cup is exactly the volume that special gel enters parallel-plate stratum analogue means, by its weight of electronic balance precise, then through calculating special gel ZND exact volume; After experiment terminates, open belt switch conduit below the mobile indicator solution pipe in right side, release unnecessary indicator solution; Below opening the mobile indicator solution pipe in left side, tapping valve releases unnecessary special gel ZND; Pull down the poly (methyl methacrylate) plate of parallel-plate stratum analogue means, the fixing iron plate of poly (methyl methacrylate) plate and parallel-plate stratum analogue means is cleaned, again the poly (methyl methacrylate) plate of parallel-plate stratum analogue means is laid back after drying, install screw and screw.
Compared with prior art, the invention has the beneficial effects as follows: (1) has invented the proving installation of the drainage for special gel ZND originally; (2) instrument adopts visual poly (methyl methacrylate) plate as parallel-plate analogue means, whole process more ocular and clear.(3) adopt gas as power source, its pressure accurately controls, and stable can not generation is fluctuated and cause experiment to have comparatively big error.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of gel drainage rate proving installation of the present invention.
Fig. 2 be proving installation the front elevation of parallel-plate stratum analogue means.
Fig. 3 be proving installation the side view of parallel-plate stratum analogue means.
In figure: 1, nitrogen cylinder, 2, low pressure regulating pressure valve, 3, gas admittance valve, 4, gas container, 5, air release, 6, parallel-plate stratum analogue means, 7, graduated cylinder, 8, video camera A, 9, the mobile indicator solution pipe in right side, 10, belt switch conduit, 11, liquid storing cup, 12, electronic balance, 13, video camera B, 14, the mobile indicator solution pipe in left side, 15, pressure automatic control instrument, 16, tapping valve, 17, screw, 18 tensimeters, 19, threeway pipeline, 20, poly (methyl methacrylate) plate, 21, fixing iron plate.
Embodiment
Below in conjunction with accompanying drawing, this proving installation is described further:
First above-mentioned proving installation is placed on horizontal experiment table, take off the poly (methyl methacrylate) plate 20 of parallel-plate stratum analogue means 6, according to the requirement of different experiments, fixing iron plate 21 part of parallel-plate stratum analogue means 6 is processed, be filled into solid matter, to reach the object simulating dissimilar stratum, in parallel-plate stratum analogue means 6, be full of indicator solution; Then poly (methyl methacrylate) plate 20 is placed on the fixing iron plate 21 of parallel-plate stratum analogue means 6, installs screw 17 and screw; On the left of parallel-plate stratum analogue means 6, add special gel ZND in mobile indicator solution pipe 14, on the right side of parallel-plate stratum analogue means 6, add indicator solution in mobile indicator solution pipe 9; Check that gas admittance valve 3 and air release 5 should be in closed condition, check that the switch of the belt switch conduit 10 on the right side of parallel-plate stratum analogue means 6 below mobile indicator solution pipe 9 should be in closed condition, liquid storing cup 11 is placed on electronic balance 12, electronic balance 12 to be placed on below the mobile indicator solution pipe 9 in right side below belt switch conduit 10, to open electronic balance 12 switch; Slowly open nitrogen cylinder 1 switch, slowly open gas admittance valve 3, gas is allowed to enter gas container 4, after gas container 4 is full of, the special gel ZND that nitrogen can promote on the left of parallel-plate stratum analogue means 6 in mobile indicator solution pipe 14 moves in parallel-plate stratum analogue means 6, when special gel ZND starts to enter parallel-plate stratum analogue means 6, open belt switch conduit 10 below the mobile indicator solution pipe 9 in right side, indicator solution is discharged in liquid storing cup 11 along belt switch conduit 10; Open video camera A8 and video camera B13; On the right side of parallel-plate stratum analogue means 6, in mobile indicator solution pipe 9, indicator solution is extruded, with the change of the liquid level of indicator solution in graduated cylinder 7, the pace of special gel ZND in parallel-plate stratum analogue means 6 and velocity variations rule can be observed very intuitively; The volume of the indicator solution in liquid storing cup 11 is exactly the volume that special gel enters parallel-plate stratum analogue means 6, by its weight of electronic balance 12 precise, then through calculating special gel ZND exact volume; After experiment terminates, open belt switch conduit 10 below the mobile indicator solution pipe 9 in right side, release unnecessary indicator solution; Below opening the mobile indicator solution pipe 14 in left side, tapping valve 16 releases unnecessary special gel ZND; Pull down the poly (methyl methacrylate) plate 20 of parallel-plate stratum analogue means 6, the fixing iron plate 21 of poly (methyl methacrylate) plate 20 and parallel-plate stratum analogue means 6 is cleaned, again the poly (methyl methacrylate) plate 20 of parallel-plate stratum analogue means 6 is laid back after drying, install screw 17 and screw.
Claims (2)
1. a gel drainage rate proving installation, be made up of nitrogen cylinder, low pressure regulating pressure valve, tensimeter, gas admittance valve, air release, pressure automatic control instrument, gas container, parallel-plate stratum analogue means, graduated cylinder, video camera A, video camera B, left side mobile indicator solution pipe, the mobile indicator solution pipe in right side, liquid storing cup and electronic balance, it is characterized in that: nitrogen cylinder (1) bottleneck pipeline is connected with low pressure regulating pressure valve (2), at the upper setting pressure table (18) of low pressure regulating pressure valve (2), low pressure regulating pressure valve (2) outlet pipeline connects gas admittance valve (3); Pressure automatic control instrument (15) left end is connected with gas admittance valve (3), and right-hand member is connected with air release (5), and middle part is connected with gas container (4); Gas container (4) threeway pipeline (19) is connected with pressure automatic control instrument (15), and the other end of threeway pipeline (19) connects the mobile indicator solution pipe (14) in left side, and tapping valve (16) is installed in mobile indicator solution pipe (14) below, left side; The right side of the mobile indicator solution pipe (14) in left side connects parallel-plate stratum analogue means (6), connects the mobile indicator solution pipe (9) in right side on right side, parallel-plate stratum analogue means (6); Mobile indicator solution pipe (9) top, right side is connected with graduated cylinder (7), the mobile indicator solution pipe (9) below connecting band switch conduit (10) in right side, belt switch conduit (10) below is stretched in liquid storing cup (11), and the below of liquid storing cup (11) arranges electronic balance (12); In the side of graduated cylinder (7), a video camera A(8 is installed); A video camera B(13 is installed outside parallel-plate stratum analogue means (6)); Fix at parallel-plate stratum analogue means (6) surrounding screw (17).
2. the method for testing of a gel drainage rate proving installation as claimed in claim 1, it is characterized in that: first above-mentioned proving installation is placed on horizontal experiment table, take off the poly (methyl methacrylate) plate (20) on parallel-plate stratum analogue means (6), according to the requirement of different experiments, fixing iron plate (21) part on parallel-plate stratum analogue means (6) is processed, be filled into solid matter, to reach the object simulating dissimilar stratum, in parallel-plate stratum analogue means (6), be full of indicator solution; Then poly (methyl methacrylate) plate (20) is placed on the fixing iron plate (21) on parallel-plate stratum analogue means (6), installs screw (17) and screw; In the mobile indicator solution pipe (14) in left side, parallel-plate stratum analogue means (6), add special gel ZND, in the mobile indicator solution pipe (9) in right side, parallel-plate stratum analogue means (6), add indicator solution; Check that gas admittance valve (3) and air release (5) should be in closed condition, check that the switch of the belt switch conduit (10) of mobile indicator solution pipe (9) below, right side, parallel-plate stratum analogue means (6) should be in closed condition, liquid storing cup (11) is placed on electronic balance (12), electronic balance (12) is placed on below the mobile indicator solution pipe (9) below belt switch conduit (10) in right side, opens electronic balance (12) switch; Slowly open nitrogen cylinder (1) switch, slowly open gas admittance valve (3), gas is allowed to enter gas container (4), after gas container (4) is full of, nitrogen can promote the special gel ZND middle motion toward parallel-plate stratum analogue means (6) in the mobile indicator solution pipe (14) in left side, parallel-plate stratum analogue means (6), when special gel ZND starts to enter parallel-plate stratum analogue means (6), open the mobile indicator solution pipe (9) below belt switch conduit (10) in right side, indicator solution is discharged in liquid storing cup (11) along belt switch conduit (10); Open video camera A(8) and video camera B(13); Parallel-plate stratum analogue means (6) the interior indicator solution of the mobile indicator solution pipe (9) in right side is extruded, with the change of the liquid level of graduated cylinder (7) interior indicator solution, the pace of special gel ZND in parallel-plate stratum analogue means (6) and velocity variations rule can be observed very intuitively; The volume of the indicator solution in liquid storing cup (11) is exactly the volume that special gel enters parallel-plate stratum analogue means (6), by its weight of electronic balance (12) precise, then through calculating special gel ZND exact volume; After experiment terminates, open the mobile indicator solution pipe (9) below belt switch conduit (10) in right side, release unnecessary indicator solution; Open the mobile indicator solution pipe (14) below tapping valve (16) in left side and release unnecessary special gel ZND; Pull down the poly (methyl methacrylate) plate (20) on parallel-plate stratum analogue means (6), the fixing iron plate (21) on poly (methyl methacrylate) plate (20) and parallel-plate stratum analogue means (6) is cleaned, again the poly (methyl methacrylate) plate (20) on parallel-plate stratum analogue means (6) is laid back after drying, install screw (17) and screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310088759.5A CN103175750B (en) | 2013-03-20 | 2013-03-20 | Gel drainage rate testing device and testing method |
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| CN201310088759.5A CN103175750B (en) | 2013-03-20 | 2013-03-20 | Gel drainage rate testing device and testing method |
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| CN103175750A CN103175750A (en) | 2013-06-26 |
| CN103175750B true CN103175750B (en) | 2015-04-22 |
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| CN201310088759.5A Expired - Fee Related CN103175750B (en) | 2013-03-20 | 2013-03-20 | Gel drainage rate testing device and testing method |
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| WO2022101464A1 (en) | 2020-11-16 | 2022-05-19 | 4Emme Service Spa | Electromechanical machine for producing sample bodies and method for detecting the current loading state with subsequent monitoring of a pre- or post-compacted steel-reinforced concrete load-bearing structure, in particular a bridge and/or a bridge arch |
| CN113250682B (en) * | 2021-07-08 | 2021-09-14 | 成都理工大学 | Fracture body stratum leakage simulation device |
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| US5112470A (en) * | 1990-12-07 | 1992-05-12 | Stratagene | Electrophoresis apparatus |
| CN102338727A (en) * | 2010-07-28 | 2012-02-01 | 中国科学院大连化学物理研究所 | Device for measuring diffusion performance of soluble gas in hydrogel |
| CN102507871A (en) * | 2011-11-02 | 2012-06-20 | 西南石油大学 | Visual dynamic simulating device for deposition in gas hydrate pipeline |
| CN102590468A (en) * | 2011-11-29 | 2012-07-18 | 中国科学院寒区旱区环境与工程研究所 | Testing system for deep soil freezing/thawing process |
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2013
- 2013-03-20 CN CN201310088759.5A patent/CN103175750B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5112470A (en) * | 1990-12-07 | 1992-05-12 | Stratagene | Electrophoresis apparatus |
| CN102338727A (en) * | 2010-07-28 | 2012-02-01 | 中国科学院大连化学物理研究所 | Device for measuring diffusion performance of soluble gas in hydrogel |
| CN102507871A (en) * | 2011-11-02 | 2012-06-20 | 西南石油大学 | Visual dynamic simulating device for deposition in gas hydrate pipeline |
| CN102590468A (en) * | 2011-11-29 | 2012-07-18 | 中国科学院寒区旱区环境与工程研究所 | Testing system for deep soil freezing/thawing process |
Non-Patent Citations (1)
| Title |
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| 熊继有等.物理法随钻防漏堵漏机制与试验.《中国石油大学学报(自然科学版)》.2009,第33卷(第4期),76-80. * |
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