CN1313703C - Experimental apparatus forb simulating seepage flow - Google Patents
Experimental apparatus forb simulating seepage flow Download PDFInfo
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- CN1313703C CN1313703C CNB2003101213026A CN200310121302A CN1313703C CN 1313703 C CN1313703 C CN 1313703C CN B2003101213026 A CNB2003101213026 A CN B2003101213026A CN 200310121302 A CN200310121302 A CN 200310121302A CN 1313703 C CN1313703 C CN 1313703C
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- stratum reticulare
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Abstract
The present invention relates to an experimental device for simulating seepage flow, which at least comprises a cylindrical high-pressure container, wherein a net equal-pressure plate is arranged in the high-pressure container, and the end face on the lateral side of the net equal-pressure plate is sealed; the net equal-pressure plate comprises a frame net for supporting fluid and providing flow passages for the fluid and a sand prevention net for blocking sand and passing fluid pressure; the sand prevention net is welded on the inner surface of the frame net. The equal-pressure plate which is formed by the combination of the frame net and the sand prevention net is adopted in the present invention, so the manufacture of the equal-pressure plate becomes convenient and is not limited by the size of a seepage flow model, and large-scale equipment is not needed. The utility model has the advantage of simple structure, convenient manufacture and low price. The present invention can quickly provide equal-pressure surfaces for various seepage flow models, and has high practical value.
Description
Technical field
The present invention relates to a kind of seepage experimental apparatus, particularly a kind of can being applied in adopts layer net composition equipressuring plate to make the fluid that flows into this device form the Seepage Flow Simulation Test Unit that each point pressure equates diametrically in the stratum filtration physical simulation experiment device.
Background technology
In the development process of oil gas field, because the complexity of earth formation need be carried out the simulated experiment on multiple relevant stratum.The physical simulation experiment of stratum filtration is exactly one of them.
Seepage simulation test is to flow at the seepage flow that carries out fluid by pore media.Usually, in a lot of flow model in porous media experiments, needing simulation fluid pressure face is isobaris surface, and fluid each point pressure on this isobaris surface is equated everywhere.Isobaris surface can also be used for the isobaris surface that the simulating oil deposit crack forms except that the isobaris surface situation of the external surface of simulation model.
In the existing Seepage Flow Simulation Test Unit, isobaris surface forms by scribing runner on seepage flow equipressuring plate and the contacted surface of simulation model.As shown in Figure 1.The ring equipressuring plate 2 that has been sticked in week on the inwall of the high-pressure bottle 1 of circle, and on the inner surface of this equipressuring plate 2, scribe runner 21.After fluid enters high-pressure bottle 1 by inlet connection 22, fluid longshore current road 21 flows and is evenly distributed on the inner surface of equipressuring plate 2, radially the surface to flow model in porous media forms isobaris surface 3 in high-pressure bottle 1, and on isobaris surface 3, fluid pressure equates (shown in arrow among the figure) everywhere.Figure 2 shows that the partial structurtes schematic diagram of equipressuring plate inner surface.Among the figure, equally distributed runner 21 is engraved on the inner surface of equipressuring plate 2.
Above-mentioned this mode can only be applicable to that the bottom situation is the flow model in porous media of glued shape.The flow model in porous media of glued shape is a kind of enough intensity that has, the flow model in porous media that is not destroyed in experiment.
The tradition equipressuring plate in use is subjected to certain restriction, on the make also exists certain problem.
Because the runner of equipressuring plate is engraved on the surface, therefore, this equipressuring plate uses when side surface contacts with the flow model in porous media surface of solid within it.For the flow model in porous media of being piled up by pourable medium, loose solid particle (sand) can be inserted runner, hinders fluid and flows.
When making this equipressuring plate,, need to adopt the relatively large baffle manufacturing of gauge owing to need on the surface of solids, carve runner.For big flow model in porous media, need employ big lathe, and can't or be difficult to change after making.For example, when needs increase the width of isobaris surface, just need the new runner of processing, and when needs reduce the isobaris surface width, then need tamp the part runner.
In addition, utilize this equipressuring plate to carry out the isobaris surface that seepage flow when experiment can not simulation fracture forms.
Summary of the invention
The objective of the invention is to provides a kind of seepage simulation test device at above-mentioned traditional equipressuring plate existing deficiency in using and making, equipressuring plate in this experimental facilities is the stratum reticulare equipressuring plate that adopts the stratum reticulare combination to make, this stratum reticulare equipressuring plate not only can provide the each point fluid pressure identical isobaris surface for the flow model in porous media of various states, and can carry out the isobaris surface of simulation fracture.
The objective of the invention is to be achieved through the following technical solutions:
A kind of seepage simulation test device which comprises at least columniform high-pressure bottle.Be provided with the equipressuring plate that is used to produce the fluid isobaris surface in the high-pressure bottle, this equipressuring plate is the layer net equipressuring plate of lateral end panel sealing.Layer net equipressuring plate comprises and is used to support and the skeleton stratum reticulare of runner is provided and is used for grade sand and transmits the sand control stratum reticulare of fluid pressure for fluid.The sand control stratum reticulare welds on the inner surface of the described skeleton stratum reticulare that is laid in.The lateral end panel of layer net equipressuring plate seals by welding or bonding or welding and bonding both combination.
Layer net equipressuring plate can be made circle or rectangular flat shape as required, also rectangular flat shape layer net equipressuring plate can be carried out head and the tail and connect and make cylindricly, perhaps directly each layer net volume is made as cylindrical shape and welds and make cylindrical layer net equipressuring plate.
Layer net equipressuring plate can be welded on the inwall of high-pressure bottle, also can directly be placed in the high-pressure bottle, and its position can be middle part, top and bottom.
After fluid enters high-pressure bottle, will evenly flow by the space of skeleton stratum reticulare, and by the surface formation isobaris surface of sand control stratum reticulare to flow model in porous media.When flow model in porous media adopted pourable medium to pile up, the sand control stratum reticulare can play the sand block effect, thereby the space clogging with the skeleton stratum reticulare can not take place.
Isobaris surface for can simulation fracture forming also is provided with outer sand control stratum reticulare on layer net equipressuring plate, this skin sand control stratum reticulare welding is laid on the external surface of described skeleton stratum reticulare.So just can make the plate-like layers net equipressuring plate with two-sided sand control screens, the layer net equipressuring plate of this two-sided sand control screens can be placed directly in the flow model in porous media as the crack.When simulation fracture seepage flow, can inject fluid by the end face of plate-like layers net equipressuring plate and form isobaris surface.
By above technical scheme as can be seen, the present invention makes the manufacturing of equipressuring plate very convenient, and is not subjected to the restriction of flow model in porous media size owing to adopted skeleton stratum reticulare and sand control stratum reticulare to make up the equipressuring plate of making, and does not need to employ main equipment.When changing pressure, only need change corresponding stratum reticulare, and need not the oversize time.The present invention is simple in structure, and is easy to make, and low price can provide isobaris surface rapidly for various flow models in porous media, has higher utility.
Description of drawings
Fig. 1 forms the schematic diagram of isobaris surface for equipressuring plate in the existing flow model in porous media experimental facilities;
Fig. 2 is the structural representation of equipressuring plate upper runner in the existing flow model in porous media experimental facilities;
Fig. 3 is the structural representation of an embodiment provided by the present invention;
Fig. 4 is a stratum reticulare equipressuring plate cross-sectional view among Fig. 3 embodiment;
Fig. 5 is the structural representation of another embodiment provided by the present invention;
Fig. 6 is a stratum reticulare equipressuring plate cross-sectional view among Fig. 5 embodiment;
Fig. 7 is the structural representation of another embodiment provided by the present invention.
The specific embodiment
Below, also the present invention is described in further detail in conjunction with the accompanying drawings by three embodiment.
Embodiment one
Figure 3 shows that the structural representation of a preferred embodiment provided by the present invention.Among the figure, be provided with a layer net equipressuring plate in the inside of high-pressure bottle 1, this layer net equipressuring plate is enclosed to form cylindric.Layer net equipressuring plate comprise be used to support and for fluid provide runner skeleton stratum reticulare 4, be used for sand block and transmit the sand control stratum reticulare 6 of fluid pressure and the transition stratum reticulare 5 that sand control stratum reticulare 6 is evenly supported.Two-layer transition stratum reticulare 5 stacks are laid on the inner surface that is fixed on skeleton stratum reticulare 4, and sand control stratum reticulare 6 then is fixed on the surface of transition stratum reticulare 5.Be fixed together by resistance welding between above-mentioned each stratum reticulare.
In above-mentioned the setting, skeleton stratum reticulare 4 is 50 microns than thick and aperture, is the skeleton of whole layer net equipressuring plate, also provides runner for fluid simultaneously.Sand control stratum reticulare 6 is 10 microns than thin and aperture, can effectively stop the sand grains of flow model in porous media.
The transition stratum reticulare 5 that is arranged between skeleton stratum reticulare 4 and the sand control stratum reticulare 6 has the 6 uniform supporting roles of sand control stratum reticulare, prevents that its stress is excessive and destroys.
In the experiment, fluid enters high-pressure bottle 1 via inlet connection 22 and the uniform flow passage that hole constituted by skeleton stratum reticulare 4 distributes, and the hole by sand control stratum reticulare 6 radially forms isobaris surface 3 (shown in arrow among the figure) to flow model in porous media.
Figure 4 shows that the cross-sectional view of stratum reticulare equipressuring plate in the present embodiment.Among the figure, skeleton stratum reticulare 4 is welded on the inwall of high-pressure bottle 1.The end face of upper and lower two sides of layer net equipressuring plate forms sealant 7 by welding, prevent sand from selvage along the slit that enters skeleton stratum reticulare 4 obstruction of skeleton stratum reticulare 4 being influenced isobaric effect.
Embodiment two
As shown in Figure 5.Present embodiment is that the tabular stratum reticulare equipressuring plate 8 with two-sided sand control stratum reticulare provided by the present invention is placed on simulation fracture in the flow model in porous media in the high-pressure bottle 1.The shape of this tabular stratum reticulare equipressuring plate 8 can be determined flexibly according to the experiment situation, be can be made into rectangle or other shape.
In experiment, fluid can enter from the end, bottom side of tabular stratum reticulare equipressuring plate 8 form isobaris surface tabular stratum reticulare equipressuring plate 8 cross-section structure as shown in Figure 6.In the present embodiment, skeleton stratum reticulare 4 is as the intermediate layer, and its inner surface lays one deck transition stratum reticulare 5, one deck sand control stratum reticulare 6 successively, lays outer transition stratum reticulare 51 of one deck and the outer sand control stratum reticulare 61 of one deck successively at its external surface.Identical with the foregoing description one, be fixed together by resistance welding between all stratum reticulares.In the present embodiment, transition stratum reticulare 5 also can be made bilayer makes sand control stratum reticulare 6 stressed even, prevents that sand control screens is damaged, and it can make independently banded.
Owing to have two-sided sand control stratum reticulare, so the tabular stratum reticulare equipressuring plate 8 of present embodiment can not be welded on the inwall of high-pressure bottle 1, can be placed in the flow model in porous media as the crack, also can be placed on flexibly on the flow model in porous media limit.
Embodiment three
Present embodiment is that layer net equipressuring plate is made circular tabular, and is placed on circular high-pressure bottle bottom, and its concrete structure as shown in Figure 7.Among the figure, place circular tabular layer net equipressuring plate at high-pressure bottle 1 inner bottom part, this circle tabular layer net equipressuring plate comprise be used to support and for fluid provide runner skeleton stratum reticulare 4, be used for sand block and transmit the sand control stratum reticulare 6 of fluid pressure and the transition stratum reticulare 5 that sand control stratum reticulare 6 is evenly supported.Transition stratum reticulare 5 is embedded between skeleton stratum reticulare 4 and the sand control stratum reticulare 6.
In the experiment, fluid enters high-pressure bottle 1 via inlet connection 23 and the uniform flow passage that hole constituted by skeleton stratum reticulare 4 distributes, and the hole by transition net 5, sand control stratum reticulare 6 axially forms isobaris surface to flow model in porous media along high-pressure bottle 1.
This experiment also can be with the anti-top of putting at high-pressure bottle 1 of circular tabular layer net equipressuring plate.
Among above-mentioned three embodiment, all be fixed together between each stratum reticulare by resistance welding.Owing to adopt welding procedure, make the sound construction between the stratum reticulare and do not have the problem of aging of contact.All stratum reticulares can adopt metal material to make mesh grid or dull and stereotyped net or sintering net.Also available other materials is made.
The pore diameter range of skeleton stratum reticulare is the 50-3000 micron.The pore diameter range of transition stratum reticulare is the 20-1000 micron.The pore diameter range of sand control stratum reticulare is the 10-1000 micron.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1, a kind of seepage simulation test device, which comprises at least columniform high-pressure bottle, be provided with the equipressuring plate that is used to produce the fluid isobaris surface in this high-pressure bottle, it is characterized in that: described equipressuring plate is the layer net equipressuring plate of lateral end panel sealing, and this layer net equipressuring plate comprises and is used to support and the skeleton stratum reticulare of runner is provided and is used for grade sand and transmits the sand control stratum reticulare of fluid pressure for fluid; Described sand control stratum reticulare welds on the inner surface of the described skeleton stratum reticulare that is laid in.
2, seepage simulation test device according to claim 1 is characterized in that: described layer net equipressuring plate is a tabular or cylindric, and its lateral end panel seals by welding or bonding or welding and bonding both combination.
3, seepage simulation test device according to claim 1 is characterized in that: described layer net equipressuring plate also comprises the one or more layers transition stratum reticulare that described sand control stratum reticulare is evenly supported; Described transition stratum reticulare welding is embedded between described skeleton stratum reticulare and sand control stratum reticulare.
4, according to claim 1 or 2 or 3 described seepage simulation test devices, it is characterized in that: the external surface welding of described layer net equipressuring plate is installed in the described high-pressure bottle.
5, seepage simulation test device according to claim 1 is characterized in that: also be provided with outer sand control screens on the described layer net equipressuring plate, this skin sand control stratum reticulare welds on the external surface of the described skeleton stratum reticulare that is laid in.
6, seepage simulation test device according to claim 5 is characterized in that: also weld between described outer sand control stratum reticulare and the skeleton stratum reticulare and be embedded with one or more layers of outer transition stratum reticulare.
7, seepage simulation test device according to claim 1 is characterized in that: described skeleton stratum reticulare is mesh grid or dull and stereotyped net or sintering net, and its aperture is the 50-3000 micron.
8, seepage simulation test device according to claim 1 is characterized in that: described sand control stratum reticulare is mesh grid or dull and stereotyped net or sintering net, and its aperture is the 10-1000 micron.
9, seepage simulation test device according to claim 1 is characterized in that: described transition stratum reticulare is mesh grid or dull and stereotyped net or sintering net, and its aperture is the 20-1000 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101213026A CN1313703C (en) | 2003-12-11 | 2003-12-11 | Experimental apparatus forb simulating seepage flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101213026A CN1313703C (en) | 2003-12-11 | 2003-12-11 | Experimental apparatus forb simulating seepage flow |
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| CN1626771A CN1626771A (en) | 2005-06-15 |
| CN1313703C true CN1313703C (en) | 2007-05-02 |
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| CNB2003101213026A Expired - Fee Related CN1313703C (en) | 2003-12-11 | 2003-12-11 | Experimental apparatus forb simulating seepage flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377130B (en) * | 2008-09-18 | 2012-05-23 | 中国海洋石油总公司 | Experiment well for testing multiple-component induction logging instrument |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308128B (en) * | 2008-07-11 | 2012-07-04 | 同济大学 | Method and device for simulating boundary current influencing seepage flow |
| CN102031965B (en) * | 2010-06-30 | 2013-08-21 | 中国石油大学(北京) | Oil-gas reservoir physical simulation wellbore radius processing method |
| CN101942991A (en) * | 2010-06-30 | 2011-01-12 | 中国石油大学(北京) | Method for modeling predictable physical model for fractured anisotropic oil reservoir water flooding development |
| CN101915089B (en) * | 2010-08-02 | 2014-06-04 | 中国海洋石油总公司 | Liquid feed device for simulating oil deposit flow |
| CN104179493A (en) * | 2013-05-24 | 2014-12-03 | 中国石油化工股份有限公司 | Experimental device for measuring leaking stoppage performance of formation fracture plugging material |
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| US4538452A (en) * | 1983-11-14 | 1985-09-03 | Ontario Research Foundation | Bore-hole hydraulics simulator |
| CN1267782A (en) * | 2000-04-14 | 2000-09-27 | 石油大学(北京) | Physical logging simulator |
| CN2439545Y (en) * | 2000-07-07 | 2001-07-18 | 中国石油天然气总公司中国科学院渗流流体力学研究所 | Equipment for simulating seepage flow under high temp. and high pressure condition |
| CN1425906A (en) * | 2001-12-19 | 2003-06-25 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN2660517Y (en) * | 2003-12-11 | 2004-12-01 | 石油大学(北京) | Layered net isostatic board and seepage simulating testing appts. |
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2003
- 2003-12-11 CN CNB2003101213026A patent/CN1313703C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538452A (en) * | 1983-11-14 | 1985-09-03 | Ontario Research Foundation | Bore-hole hydraulics simulator |
| CN1267782A (en) * | 2000-04-14 | 2000-09-27 | 石油大学(北京) | Physical logging simulator |
| CN2439545Y (en) * | 2000-07-07 | 2001-07-18 | 中国石油天然气总公司中国科学院渗流流体力学研究所 | Equipment for simulating seepage flow under high temp. and high pressure condition |
| CN1425906A (en) * | 2001-12-19 | 2003-06-25 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN2660517Y (en) * | 2003-12-11 | 2004-12-01 | 石油大学(北京) | Layered net isostatic board and seepage simulating testing appts. |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377130B (en) * | 2008-09-18 | 2012-05-23 | 中国海洋石油总公司 | Experiment well for testing multiple-component induction logging instrument |
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| CN1626771A (en) | 2005-06-15 |
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