CN104865370A - Dual-purpose gripper for transfusion under ultrasonic load and desorption experiment - Google Patents
Dual-purpose gripper for transfusion under ultrasonic load and desorption experiment Download PDFInfo
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- CN104865370A CN104865370A CN201510195859.7A CN201510195859A CN104865370A CN 104865370 A CN104865370 A CN 104865370A CN 201510195859 A CN201510195859 A CN 201510195859A CN 104865370 A CN104865370 A CN 104865370A
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Abstract
The present invention discloses a dual-purpose gripper for transfusion under ultrasonic load and desorption experiment, and relates to the technical field of rock core clamping. The gripper includes a middle clamping assembly, a plug, a cylinder, a spiral passageway, an ultrasonic transducer and an insulation layer. The middle clamping assembly is located inside the cylinder, and can hold the rock core and provide triaxial stress condition; the plug is used to substitute the middle clamping assembly and can be used as an adsorption and desorption tank; the spiral passageway in the cylinder is for thermostat fluid circulation, and provides constant temperature environment; the ultrasonic transducer is bonded to the outer wall of the cylinder to provide an ultrasound field; and the insulation layer provides better constant temperature effect. The embodiment of the invention can realize experimental conditions of triaxial stress and constant under ultrasonic load, reduce distortion caused by reflection of ultrasonic, separate the ultrasound thermal effect and mechanical vibration effect, and to analyze the effect of ultrasound on the transfusion and desorption on a single-factor basis.
Description
Technical field
The present invention relates to rock core clamping technique field, specifically seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing.
Background technology
In cbm development field, ultrasonic technology has simple to operate, pollution-free, that cost is low feature, thus has specific advantage at environment and reservoir damage angle.In, traditional development technique and the hypotonic feature of China's coal seam reservoirs is incompatible and under the objective background causing per-well production low, the application of ultrasonic technology obtains new attention and exploration.Ultrasound wave has the effect of anatonosis, short desorb to coal seam reservoirs.
The application of current ultrasound wave in cbm development is also in the desk research stage, but existing experiment porch promotes coal-bed methane seepage for research ultrasound wave, the mechanism of action of desorb also exists very large deficiency.One is that core holding unit is placed in water bath, and act on coal body by belonging to propagate ultrasound waves importing core holding unit, ultrasound wave is dredged medium from ripple and entered Bomi dieletric reflection phenomenon especially obviously, causes the ultrasound wave serious distortion acted on coal body; One is that ultrasonic transducer is placed in core holding unit one end, then can not ensure isoperibol, carries out effective Separation Research to ultra sonic machinery yo-yo effect and thermal effect.
Therefore, prior art exists that ultrasound wave distortion is serious, ultra sonic machinery yo-yo effect effectively can not be separated two major defects with thermal effect.The apparatus reduces the problem of ultrasound wave distortion, effectively can be separated ultrasound wave two kinds of action modes, can also Seepage Experiment and adsorption and desorption experiment be carried out simultaneously, greatly save experimental cost.
Summary of the invention
The object of the present invention is to provide seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing, complete the Seepage Experiment under ultrasonic pressing and adsorption and desorption experiment, effective separation ultra sonic machinery yo-yo effect and thermal effect two kinds of action modes, there is the problem of distortion in the ultrasound wave simultaneously reducing to be applied to sample.
The present invention realizes with following technical scheme: seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing, and comprise the cylinder body of both ends open, the two ends of cylinder body are movably installed with end cap; One end of cylinder body is provided with seepage flow fixation kit or desorb fixation kit I through end cap; One end of cylinder body is provided with seepage flow movable component or desorb fixation kit II through end cap; The outside surface symmetry of cylinder body is pasted with ultrasonic transducer;
Described seepage flow fixation kit is non-movable piston, and described seepage flow movable component is the movable plunger slided along cylinder body, and the other end end cap of cylinder body is fixed with axial compression pressure chamber, and movable plunger is arranged in cylinder body through axial compression pressure chamber; Non-movable piston and movable plunger and between be provided with rock core, between rock core and movable plunger, be provided with pad; Rock core is wrapped up by packing element, forms ring seal space between packing element and cylinder body, is annular confined pressure chamber; Non-movable piston is provided with gas flow channel and passage I; Movable plunger is provided with passage II and temperature sensor passage; Axial compression pressure chamber is provided with passage III; Cavity is divided into two chambers in left and right in axial compression pressure chamber inside by movable plunger, and passage III is communicated with its lateral compartments;
Described desorb fixation kit I is plug I, and described desorb fixation kit II is plug II
;plug I is provided with gas passage, and plug II is provided with temperature sensor passage.
It is further: the end face that described non-movable piston is relative with movable plunger, and two of pad end faces are all in ring reticulate texture.
Cylinder body is arranged a heat-insulation layer, heat-insulation layer leaves ultrasonic transducer line outlet.
Described end cap is threaded with adopting between cylinder body.
The outside surface of cylinder body is provided with spiral channel; That one end cylinder body of movable plunger is provided with an inflow entrance, that one end cylinder body of fixed piston is provided with a flow export.
Cylinder body and ultrasonic transducer bonded part are circular platform.
Movable plunger is provided with active catch wing, and active catch wing is fixed by the end cap corresponding with it; The radial position that active catch wing is contacting with cylinder body is sealed by O RunddichtringO.
The radial position that described non-movable piston is contacting with cylinder body is sealed by O RunddichtringO.
The invention has the beneficial effects as follows: complete the Seepage Experiment under ultrasonic pressing and adsorption and desorption experiment, be effectively separated ultra sonic machinery yo-yo effect and thermal effect two kinds of action modes; In ultrasonic pressing process, sound wave 90 ° of incident angles can enter cylinder body, decreases and significantly decays owing to reflecting the ultrasound wave caused, reduce the problem of ultrasound wave distortion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is plug I structural representation;
Fig. 3 is plug II structural representation;
Fig. 4 is this cylinder body and ultrasonic transducer bonded part structural representation.
In figure: 1, cylinder body, 2, spiral channel, 3, left end cap, 4, non-movable piston, 5, movable plunger, 6, axial compression pressure chamber, 7, right end cap, 8, active catch wing, 9, pad, 10, packing element, 11, rock core, 12, annular confined pressure chamber, 13, gas flow channel, 14, passage I, 15, passage II, 16, passage III, 17, inflow entrance, 18, flow export, 19, annular groove, 20, temperature sensor, 21, ultrasonic transducer, 22, heat-insulation layer, 23, ultrasonic transducer line outlet, 24, plug I, 25, plug II, 26, gas passage, 27, temperature sensor passage.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
As shown in Figure 1, Seepage Experiment dual-purpose clamper general structure schematic diagram under a kind of ultrasonic pressing, wherein, clamp assemblies comprises non-movable piston 4, movable plunger 5, axial compression pressure chamber 6, active catch wing 8, pad 9, packing element 10, rock core 11.Ensure that gas fully contacts with rock core 11 and circulates.Movable plunger 5 is placed on the right side of cylinder body 1, combines and can provide axle pressure, fixed by right end cap 7 with axial compression pressure chamber 6; Active catch wing 8 mainly plays sealing function; Pad 9 mainly makes up the inadequate defect of sample length; Rock core 11 is clamped by non-movable piston 4, movable plunger 5, is wrapped up by packing element 10, and and between cylinder body, form annular pressure chamber, hoop confined pressure is provided.Non-movable piston 4 right side, movable plunger 5 left side, pad 9 two end faces, all in ring reticulate texture, ensure that gas fully contacts with rock core 11 and circulates.
The radial position that non-movable piston 4, active catch wing 8 are contacting with cylinder body 1 seals by O RunddichtringO, and non-movable piston 4 is fixed by left end cap 3, and left end cap 3 and cylinder body 1 are threaded connection; Active catch wing 8 is fixed by right end cap 7, and right end cap 7 is same with cylinder body 1 to be threaded connection, and ensure that the security of experiment.Left end cap 3 and right end cap 7 are all detachable, are all stripped out by middle clamp assemblies.
Movable plunger 5 and axial compression pressure chamber 6 are combined as axial compression compression system, and axial compression pressure chamber 6 is fixed in right end cap by gear wing.Movable plunger 5 is each passed through axial compression pressure chamber 6, right end cap 7 and active catch wing 8, cavity is divided into two chambers in left and right by the gear wing on movable plunger 5, pressurized fluid enters right chamber promotion movable plunger 5 by passage III 16 and is moved to the left, thus produces axial compression to rock core 11.
Forming ring seal space between packing element 10 and cylinder body 1, is annular confined pressure chamber 12, injects pressurized fluid by the passage I 14 of non-movable piston 4 inside to annular confined pressure chamber, thus pressure is passed to rock core generation confined pressure by extruding packing element.Movable plunger 5, axial compression pressure chamber 6, packing element 10, confined pressure pressure chamber 12 form the fluid passage of experimental gas flow channel and confined pressure booster cavity jointly.Active catch wing 8 has Seepage Experiment gas flow pass and annular groove 19, and annular groove is provided with O RunddichtringO.Axial compression pressure chamber 6 has the passage III that pressurized fluid flows into, and fitted shaft pressure pressure chamber and movable plunger, can realize the experiment condition of triaxial stress field.
Concrete operations are: clamping rock core, first pass through passage I 14 to annular confined pressure pressure chamber 12 input tape hydraulic fluid, given confined pressure force value, ensure that core sample does not damage; Then in axial compression pressure chamber 6, inject pressurized fluid by passage III 16, change pressure limit step by step.
Non-movable piston 4 is provided with gas flow channel 13, and movable plunger 5 is provided with gas flow pass II 15, and gas flow channel 13 is connected with gas bottle, provides stable gaseous tension; Passage II 15 is connected with gas meter, detects percolation flow velocity.Also be provided with temperature sensor 20 in movable plunger 5 and settle passage, temperature sensor 20 is connected with data acquisition module.Wherein, temperature sensor 20 probe is put near rock core 11 right side, ultrasound wave can be loaded under non-constant temperature, temperature changing regularity near monitoring rock core, then on the basis closing ultrasonic pressing, regulate described temperature changing regularity by constant-temperature circulating device, the single thermal effect of analog ultrasonic wave is on the impact of seepage flow.
Rock core clamp assemblies is mainly rock core 11 Seepage Experiment and provides condition of triaxial stress, is taken out by all parts, replaces with plug I 24 and plug II 25, can be used as coal adsorption-desorption tank to use, saved cost, as shown in Figure 2, plug II 25 structure as shown in Figure 3 for plug I 24 structure.Plug I 24 is fixed by left end cap 3 equally, and plug II 25 is fixed by right end cap 7.Plug I 24 is provided with gas passage 26, is connected with compensating cylinder; Plug II 25 is provided with temperature sensor and arranges passage 27, connects temperature sensor.Temperature sensor can monitor temperature changing regularity in ultrasonic pressing process under non-constant temperature, and then utilize isoperibol analog ultrasonic wave temperature effect on the impact of methane desorbing gas on the basis closing ultrasonic wave field, thus ultrasonic heat effect is separated.
The surface of cylinder body 1 is provided with spiral channel 2, for constant temperature fluid provides circulation passage, spiral channel 2 is provided with inflow entrance 17 and flow export 18 at two ends, left and right respectively, can be connected with constant temperature circulating system respectively, raw material and the power of constant temperature circulating are constantly provided to spiral channel inside by closed constant temperature oven and ebullator, the constant temperature fluid influent stream that continues to flow goes out, and ensures that cylinder body 1 inside keeps isoperibol, in order to simulate described thermal effect condition seepage flow, adsorption-desorption rule.Isoperibol not only simulates prime stratum temperature, can also offset in time the thermal effect in ultrasonic pressing process, thus only inquire into ultrasound wave to the impact of gas flow, coal-seam gas desorb from mechanical vibration angle, realizes being separated of mechanical vibration and thermal effect.For ensureing isoperibol further, arranging heat-insulation layer 21 at outermost layer, to reduce heat loss, playing better constant temperature effect.Heat-insulation layer 21 leaves ultrasonic transducer line outlet 23, is connected with outside ultrasonic generator for it.
In addition, in ultrasonic pressing process, constantly the heat that ultrasound wave produces is taken away in time by constant temperature circulating system, cylinder body 1 internal temperature constant can be kept, thus offset the impact of ultrasonic heat effect, ensure that observed seepage flow, adsorption-desorption rule is the impact of ultra sonic machinery effect of vibration, thus realize ultra sonic machinery yo-yo effect is separated observation object with thermal effect.
As shown in Figure 1 and Figure 4, cylinder body 1 outer wall bonding is close to by ultrasonic transducer 21, is circular platform, for ultrasonic transducer 21 tight bond at cylinder body and ultrasonic transducer bonded part.In ultrasonic pressing process, sound wave 90 ° of incident angles can enter cylinder body 1, decreases and significantly decays owing to reflecting the ultrasound wave caused, reduce the problem of ultrasound wave distortion.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all make on basis of the present invention any amendment, equivalent to replace and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. seepage flow, the dual-purpose clamper of desorption experiment under ultrasonic pressing, it is characterized in that: the cylinder body (1) comprising both ends open, the two ends of cylinder body (1) are movably installed with end cap; One end of cylinder body (1) is provided with seepage flow fixation kit or desorb fixation kit I through end cap; One end of cylinder body (1) is provided with seepage flow movable component or desorb fixation kit II through end cap; The outside surface symmetry of cylinder body (1) is pasted with ultrasonic transducer (21);
Described seepage flow fixation kit is non-movable piston (4), described seepage flow movable component is the movable plunger (5) slided along cylinder body, the other end end cap of cylinder body is fixed with axial compression pressure chamber (6), and movable plunger (5) is arranged in cylinder body through axial compression pressure chamber (6); Non-movable piston (4) and movable plunger (5) and between be provided with rock core (11), between rock core (11) and movable plunger (5), be provided with pad (9); Rock core (11) is wrapped up by packing element (10), and forming ring seal space between packing element (10) and cylinder body (1), is annular confined pressure chamber (12); Non-movable piston (4) is provided with gas flow channel (13) and passage I (14); Movable plunger (5) is provided with passage II (15) and temperature sensor passage; Axial compression pressure chamber (6) is provided with passage III (16); Cavity is divided into two chambers in left and right in axial compression pressure chamber (6) inside by movable plunger (5), and passage III (16) is communicated with its lateral compartments;
Described desorb fixation kit I is plug I (24), and described desorb fixation kit II is plug II (25)
;plug I is provided with gas passage (26), and plug II is provided with temperature sensor passage (27).
2. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, it is characterized in that: the end face that described non-movable piston (4) is relative with movable plunger (5), and two end faces of pad (9) are all in ring reticulate texture.
3. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, it is characterized in that: cylinder body (1) is arranged a heat-insulation layer (22), heat-insulation layer (22) leaves ultrasonic transducer line outlet (23).
4. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, is characterized in that: described end cap is threaded with adopting between cylinder body.
5. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, is characterized in that: the outside surface of cylinder body (1) is provided with spiral channel (2); That one end cylinder body of movable plunger (5) is provided with an inflow entrance (17), that one end cylinder body of fixed piston is provided with a flow export (18).
6. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, is characterized in that: cylinder body and ultrasonic transducer bonded part are circular platform.
7. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, it is characterized in that: movable plunger (5) is provided with active catch wing (8), active catch wing (8) is fixed by the end cap corresponding with it; The radial position that active catch wing (8) is contacting with cylinder body (1) is sealed by O RunddichtringO.
8. seepage flow, the dual-purpose clamper of desorption experiment under a kind of ultrasonic pressing according to claim 1, is characterized in that: the radial position that described non-movable piston (4) is contacting with cylinder body (1) is sealed by O RunddichtringO.
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| CN201510195859.7A CN104865370B (en) | 2015-04-22 | 2015-04-22 | Seepage flow, desorption experiment Two-purpose paper clip holder under a kind of ultrasonic pressing |
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| CN201510195859.7A CN104865370B (en) | 2015-04-22 | 2015-04-22 | Seepage flow, desorption experiment Two-purpose paper clip holder under a kind of ultrasonic pressing |
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| CN104865370B CN104865370B (en) | 2016-06-15 |
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Cited By (11)
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| CN105510143A (en) * | 2016-01-16 | 2016-04-20 | 黑龙江科技大学 | Experimental device for coal mass in-situ mechanical properties and gas hydrate saturation monitoring device and method based on same |
| CN106950040A (en) * | 2015-12-09 | 2017-07-14 | 通用电气公司 | Method and system for checking wind turbine blade |
| CN107559001A (en) * | 2017-09-13 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of artificial ground formation damage evaluating system |
| CN108387499A (en) * | 2018-02-08 | 2018-08-10 | 成都理工大学 | A kind of lithologic subsurface original position multi-parameter anisotropy measurement device |
| CN108535447A (en) * | 2017-03-01 | 2018-09-14 | 中国石油天然气股份有限公司 | Core parameters measuring device |
| CN108760886A (en) * | 2018-07-27 | 2018-11-06 | 国家海洋局第海洋研究所 | One kind can water coincidence core parameters,acoustic test platform |
| CN110346449A (en) * | 2019-05-24 | 2019-10-18 | 南通市中京机械有限公司 | Sound wave clamper |
| CN110530772A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal sample large compressive strain and carbon dioxide displacement coal bed methane one experimental rig |
| CN110529107A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal seam strain, seepage flow, displacement and jet stream integrated experiment device and method |
| CN110530773A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Gas flow and jet stream experimental rig |
| CN112627786A (en) * | 2020-12-14 | 2021-04-09 | 浙江海洋大学 | Ultra-low permeability oil reservoir CO2Displacement process experimental method and device |
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| CN105510143A (en) * | 2016-01-16 | 2016-04-20 | 黑龙江科技大学 | Experimental device for coal mass in-situ mechanical properties and gas hydrate saturation monitoring device and method based on same |
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| CN107559001A (en) * | 2017-09-13 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of artificial ground formation damage evaluating system |
| CN108387499B (en) * | 2018-02-08 | 2020-05-22 | 成都理工大学 | Rock underground in-situ multi-parameter anisotropy measuring device |
| CN108387499A (en) * | 2018-02-08 | 2018-08-10 | 成都理工大学 | A kind of lithologic subsurface original position multi-parameter anisotropy measurement device |
| CN108760886A (en) * | 2018-07-27 | 2018-11-06 | 国家海洋局第海洋研究所 | One kind can water coincidence core parameters,acoustic test platform |
| CN110346449A (en) * | 2019-05-24 | 2019-10-18 | 南通市中京机械有限公司 | Sound wave clamper |
| CN110529107A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal seam strain, seepage flow, displacement and jet stream integrated experiment device and method |
| CN110530773A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Gas flow and jet stream experimental rig |
| CN110530772A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal sample large compressive strain and carbon dioxide displacement coal bed methane one experimental rig |
| CN110530773B (en) * | 2019-09-02 | 2020-06-09 | 重庆大学 | Gas seepage and jet flow test device |
| CN112627786A (en) * | 2020-12-14 | 2021-04-09 | 浙江海洋大学 | Ultra-low permeability oil reservoir CO2Displacement process experimental method and device |
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Granted publication date: 20160615 |