CN102951875A - Earthquake physical reservoir model, preparation method thereof and application thereof - Google Patents
Earthquake physical reservoir model, preparation method thereof and application thereof Download PDFInfo
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- CN102951875A CN102951875A CN2011102473449A CN201110247344A CN102951875A CN 102951875 A CN102951875 A CN 102951875A CN 2011102473449 A CN2011102473449 A CN 2011102473449A CN 201110247344 A CN201110247344 A CN 201110247344A CN 102951875 A CN102951875 A CN 102951875A
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Abstract
The invention relates to an earthquake physical reservoir model, a preparation method thereof and an application thereof. The model is composed of reduced iron powder, rosin liquid, zinc oxide, barite powder or lime, etc. Property parameters of the model can be adjusted in the following ranges that a propagation speed is 1100 to 2000 m/s, a porosity is 1 to 30 % and an amplitude is 50 to 210. The preparation method comprises: 1, putting various experimental materials of the earthquake physical reservoir model into a stirring apparatus to uniformly stir, and then injecting into a die; 2, pressing tightly and debubbling; and 3, molding and demolding to obtain the finish product. In accordance with different test purposes and requirements, the earthquake physical model can be built by using a similarity principle to simulate actual geological structure; and the earthquake physical model can be used for researches on seismic wave fields and researches for other purposes; moreover the earthquake physical model can provide relatively objective bases for verification of new methods and new theories in oil-gas exploration and development.
Description
Technical field
The present invention relates to the geophysical survey field, particularly relate to a kind of for actual architectonic earthquake physics reservoir model experiment material of seismic wave field research simulation and its preparation method and application.
Background technology
Along with deepening continuously of China's oil-gas exploration and development work, the focus that enlarges oil and gas discovery is extended to complex area gradually.Many geological phenomenons and wave field communication theory are anxious to be treated further to be verified with perfect, and method of exploration also remains to be further developed.
Seismic prospecting is one of method important in the geophysical survey, the elasticity of its rock that is based on, the basic skills of research is with explosive or on-explosive artificial excitation seismic wave, and seismic wave is by underground different medium the time, and is ever-changing owing to the difference of its elastic property and geometric shape.According to hourage and the speed data of the seismic wave that receives, particularly according to parameters such as wave amplitude, frequency and formation velocities, the textural property of seismic prospecting researchist deducibility wave trajectory, medium rock reaches the purpose of exploration.
The physical model simulation technique is one of gordian technique of geophysical research, important " assistant " who is engaged in theoretical question research, it also is the effective means that reduces the geophysical problems multi-solution in the production application, be effective, the most direct method of the complicated seismic wave field feature of research, cast material research is the basis of seismic physical modeling.The 3-D seismics physical model is one of effective means of seismic wave propagation response under the research complex geological condition, and it can correctly simulate the all-wave seismic wave field, effectively identifies the convergence playback quality of diffracted wave and side wave.
The great advantage of seismic physical modeling is its result's verity.It is not subjected to the restriction of method of calculation, assumed condition, in the 3 D complex earthquake simulation, has quick and economic characteristics.Therefore, be subject to the generally attention of domestic and international oil company, university and research institution, the application in oil and gas exploration, exploitation is more and more extensive.Therefore, it has a extensive future.
Selecting or mix can but with the cast material of natural stratum lithology speed analogy and to produce geological structure model true to nature be one of key of seismic physical modeling technology success.For this reason, carry out targetedly the cast material simulation technique research of complicated earth surface and complicated reservoirs, in conjunction with an oil-gas exploration and development difficult problem, carry out the simulation of complicated earth surface and complicated reservoirs and wave field characteristics analysis, exploration has the meaning of important reality to reality.
Recent years is being obtained gratifying achievement aspect the development of geophysical model material and the exploitation, and the method test that adopts Resins, epoxy and silicon rubber to mix goes out the material mixture ratio relational model sample that velocity of longitudinal wave is changed by 1034～2370m/s; Earth exploration science and technology institute of Jilin University finds to sneak into the elasticity wave propagation velocity that thinner or lower velocity colloid can reduce the Resins, epoxy mixing material in Resins, epoxy in experiment, adding cement flour or mineral powder can improve the elasticity wave propagation velocity of Resins, epoxy mixing material, by the control blending ratio, can be with the speed control of the elastic wave of mixing material in 1600～3200m/s scope etc.They are utilizing physical model to carry out the wave field characteristics research of complex dielectrics.
Seismic physical model experiment key is to locate suitable analog material.Research for the seismic physical model material, done many work both at home and abroad, summary is got up, and used material all is silicon rubber and Resins, epoxy basically both at home and abroad, they are desirable materials for constructing analog, but have been difficult to be competent at for reservoir simulation.Concerning forming reservoir of oil and gas, rock type is not main at nature, and key is whether have porosity and perviousness.As long as the rock of any rock class has certain porosity and perviousness, all may become reservoir of oil and gas.And the cast material of silicon rubber and the simulation of Resins, epoxy blending means is densification, imporosity and perviousness, does not satisfy the requirement of this respect.
The research that is used at present the reservoir simulation material also is blank, carry out the reservoir simulation investigation of materials and be necessity of improving the seismic physical model experimental ability by way of, also be the needs of seismic prospecting development.
Therefore, along with deepening continuously of China's oil-gas exploration and development work, existing seismic exploration technique has been proposed stern challenge, the oil-gas exploration research of reservoir more and more obtains people's attention.Research and development have certain porosity and perviousness reservoir model material, carry out the research of reservoir physical model, and this also is one of the most scabrous problem in whole earthquake physical simulation techniques.
Chinese patent CN1772809A discloses a kind of " being used for high molecular synthetic material of seismic physical model and preparation method thereof ".Chinese patent 201010503831.2 discloses a kind of " a kind of seismic physical model and its preparation method and application ". but because its selection and preparation method's limitation, the problem of at present prior art existence is:
1, the cast material controlled speed is limited; (1000-3300)
2, existing cast material is densification, imporosity and perviousness.
The object of the invention is, the earthquake physics reservoir model material of the engineering materials synthesizing new of development, by the seismic physical model that utilizes similarity principle to build, the tectonic structure that simulation is actual, kinematics and dynamic characteristic that the Study of Seismic ripple is propagated at the complex area of hydrocarbon-bearing pool reservoir structure.For oil reservoir research provides the main geologic foundation, carry out the fundamental research of oil-field development production and research work, the end result of oil reservoir is described.At present, the Modelling of this model reservoir material is among the exploratory development.
Summary of the invention
In order to overcome the defective of prior art, the invention provides the synthetic earthquake physics reservoir model of a kind of engineering materials, this cast material is by by reduced iron powder, rosin liquid, zinc oxide, the compositions such as ground barium sulfate or lime.The present invention can according to different test objectives and requirement, adopt different admixtures.The present invention studies its physical parameter through certain formula test test, determines suitable reservoir simulation material, produces novel seismic physical model, is used for kinematics and dynamic characteristic that research is propagated at complex area at hydrocarbon reservoirs tectonic earthquake ripple.
One of the present invention's earthquake physics reservoir model is achieved in that
The nature parameters of described earthquake physics reservoir model is adjustable in following scope:
Velocity of propagation is 1100～2000m/s,
Porosity is 1～30%,
Amplitude is 50～210;
The composition of described earthquake physics reservoir model experiment material is counted by weight:
Reduced iron powder: 80-120
Rosin liquid: 25-70
Zinc oxide: 25-110
Ground barium sulfate or lime: 3-40.
In implementation,
Described rosin liquid is the liquid of 25～50% alcohol rosin.
Described reduced iron powder can be the analytical pure reduced iron powder of Tianjin Kermel Chemical Reagent Co., Ltd.'s production;
Described zinc oxide is to be the analytical pure zinc oxide of Shanghai hundred million chemical reagent company limiteds of a specified duration production;
Described ground barium sulfate can be the analytical pure sulfuric acid barium of Xilong Chemical Co., Ltd's production.
Earthquake physics reservoir model of the present invention can prepare according to the following steps:
1, the various experiment material compositions of described earthquake physics reservoir model are put into mixing tool, then stir, rear injection mould stirs;
2, compacting, de-bubble are processed;
3, make described earthquake physics reservoir model after moulding, the demoulding.
The present invention's two is preparation methods of a kind of earthquake physics reservoir model, and the preparation of described synthetic earthquake physics reservoir model is carried out according to the following steps:
1, the various experiment material compositions of described earthquake physics reservoir model are put into mixing tool, then stir, rear injection mould stirs;
2, compacting, de-bubble are processed;
3, make described earthquake physics reservoir model after moulding, the demoulding.
The present invention's three kinematics that to be earthquake physics reservoir models propagate at complex area at the Study of Seismic ripple and the application in the dynamic characteristic.
In concrete the application, describedly be applied as kinematics and the dynamic characteristic that simulation actual tectonic structure, reservoir of oil and gas, Study of Seismic ripple are propagated at complex area, and correctly simulate the all-wave seismic wave field, effectively identify the convergence playback quality of diffracted wave and side wave.
The effect of invention
Synthesize earthquake physics reservoir model experiment material by of the present invention with engineering materials, the seismic physical model that utilizes similarity principle to build, the tectonic structure that simulation is actual, be used for seismic wave field research, stratum---lithology model research, seam---hole reservoir model research, crosshole seismic physical Model Study and other orders, kinematics and dynamic characteristic that the Study of Seismic ripple is propagated at complex area, while also provides more objective foundation for the checking of method new in the oil-gas exploration and development and new theory, for oil reservoir research provides the main geologic foundation, carry out the fundamental research of oil-field development production and research work, describe the end result of oil reservoir.
Description of drawings
Fig. 1 is the speed V areal map of different reservoir material model of the present invention;
Fig. 2 is the amplitude A areal map of friction-motion speed reservoir material model of the present invention;
Fig. 3 is the graph of a relation of the different speed V of the present invention and curing time T
Fig. 4 is the process flow diagram of model preparation of the present invention.
Embodiment
Below in conjunction with specific embodiment, embodiments of the present invention are described in detail as follows.
Embodiment 1-4
1, the various experiment material compositions of described earthquake physics reservoir model are put into mixing tool, also can add an amount of jointing compound, then stir, rear injection mould stirs;
2, compacting, de-bubble are processed;
3, after moulding, the demoulding, perhaps make described earthquake physics reservoir model through engraving.
4, curing in the mold 28～30 days at normal temperatures, form removal, model is made.
The composition of the experiment material of embodiment 1-4 and the model property that makes see Table 1 and accompanying drawing 1-3.
Table 1
Physical simulation of seismic exploration physical test process is: use the ultrasonic excitation seismic wave, seismic wave is by the variation of physical model elastic properties of materials character and geometric shape, come the elastic property of the different rock medium of simulate formation and the variation of geometric shape, according to the hourage and the speed data that receive ripple, infer wave trajectory and dielectric structure, and according to parameters such as wave amplitude, frequency and formation velocities, infer the character of rock, reach the purpose of exploration.
Fluid in the blowhole and the elastic property that changes rock thereof produce certain impact.The quantitative examination rock elastic property with the feature of contained change of fluid for understanding petrophysical property in depth, particularly significant to oil-gas field development.The elastic property of rock is not only relevant with contained fluid properties, and is subjected to the impact of the oneself factors such as rock property, porosity and rock physical environment of living in.For the physical property of testing the reservoir material with describe the problem, in research process, in reservoir material model sample, select 4 samples, the weight of material, volume etc. are tested, draw the parameters (seeing the test table look-up 1 of reservoir material property parameter) such as density, porosity of sample.Table 1 is the physical parameter of four rock samples in the invention one.Visible sample contains hole in the table, and the size of hole has close relationship with the material of sample and its compactness extent, and it depends on the manufacture craft of prescription and the sample of material.
Understanding and understanding to reservoir characteristics, pore fluid state etc. are the keys of Oil/Gas Reservoir Assessment and oil and gas development.The material of research and development has hole and certain velocity range, just can carry out the research of the model experiment of reservoir hydrocarbons, for scientific basis, supplying method theoretical basis and experimental basis are sought in the gas-bearing property prediction.
Fig. 1 is the synthetic earthquake physics reservoir model experiment material velocity diagrams of different proportioning engineering materialss, velocity range 1100～the 2000m/s of expression reservoir model experiment material, the test of reason analog physical is the cast material by different speed, simulate formation rock elasticity structure, make physical model, carry out physical simulation of seismic exploration.
Fig. 2 represents the amplitude of the speed of different rock samples, and the size of amplitude is physical model elastic properties of materials character is passed through in expression with the ultrasonic excitation seismic wave ability, the quality of illustrative material experimental performance.The amplitude range 50-210 of friction-motion speed reservoir material of the present invention, the expression material has the ultrasonic excitation seismic wave by the ability of physical model elastic properties of materials character, and illustrative material can be used for model investigation.
Fig. 3 represents the velocity variations of cast material curing time, and the stability of cast material speed is described.The size of speed represents the stability of cast material speed and the relation of time.The hydration and hardening of cement is a long-term ongoing process, and the model sample is along with the intensification of each clinker mineral extent of hydration in the cement granules, and gelinite constantly increases, and pore constantly reduces.The hydration and hardening of cement generally in 28d tempo very fast, tempo is slower behind the 28d.Fig. 3 is the relativity of model sample preserving period and speed, is not difficult to find out the changes in contrast of model sample preserving period and speed from figure, and the time in the speed of model sample and preserving period increases and strengthens, and speed is substantially steady after 30---30 days.
Claims (9)
1. earthquake physics reservoir model is characterized in that:
The nature parameters of described earthquake physics reservoir model is adjustable in following scope:
Velocity of propagation is 1100～2000m/s,
Porosity is 1～30%,
Amplitude is 50～210;
The composition of described earthquake physics reservoir model experiment material is counted by weight:
Reduced iron powder: 80-120
Rosin liquid: 25-70
Zinc oxide: 25-110
Ground barium sulfate or lime: 3-40.
2. earthquake physics reservoir model as claimed in claim 1 is characterized in that:
Described rosin liquid is the liquid of 25～50% alcohol rosin.
3. earthquake physics reservoir model as claimed in claim 2 is characterized in that:
Described reduced iron powder is the reduced iron powder that Tianjin Kermel Chemical Reagent Co., Ltd. produces.
4. earthquake physics reservoir model as claimed in claim 3 is characterized in that:
The zinc oxide of described zinc oxide for producing for Shanghai hundred million chemical reagent company limiteds of a specified duration.
5. earthquake physics reservoir model as claimed in claim 4 is characterized in that:
Described ground barium sulfate is the barium sulfate that Xilong Chemical Co., Ltd produces.
6. such as the described earthquake physics of one of claim 1～5 reservoir model, it is characterized in that:
Described earthquake physics reservoir model prepares according to the following steps:
1, the various experiment material compositions of described earthquake physics reservoir model are put into mixing tool, then stir, rear injection mould stirs;
2, compacting, de-bubble are processed;
3, make described earthquake physics reservoir model after moulding, the demoulding.
7. such as the preparation method of the earthquake physics reservoir model of one of claim 1～6, it is characterized in that:
The preparation of described synthetic earthquake physics reservoir model is carried out according to the following steps:
1, the various experiment material compositions of described earthquake physics reservoir model are put into mixing tool, then stir, rear injection mould stirs;
2, compacting, de-bubble are processed;
3, make described earthquake physics reservoir model after moulding, the demoulding.
8. the kinematics of propagating at complex area at the Study of Seismic ripple such as the earthquake physics reservoir model of one of claim 1～6 and the application in the dynamic characteristic.
9. the application of earthquake physics reservoir model as claimed in claim 8 is characterized in that:
Describedly be applied as kinematics and the dynamic characteristic that simulation actual tectonic structure, Study of Seismic ripple are propagated at complex area, and correctly simulate the all-wave seismic wave field, effectively identify the convergence playback quality of diffracted wave and side wave.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076390A (en) * | 2013-03-29 | 2014-10-01 | 中国石油天然气股份有限公司 | Complex tectonic earthquake physical model manufacturing method |
| CN104230298A (en) * | 2013-06-24 | 2014-12-24 | 中国石油大学 | Preparation method of man-made reservoir physical model, and special cementing agent for man-made reservoir physical model |
| CN105489099A (en) * | 2016-01-22 | 2016-04-13 | 中国石油天然气集团公司 | Fracture reservoir seismic physical model and preparation method thereof |
| CN105967562A (en) * | 2016-05-18 | 2016-09-28 | 重庆大学 | Hard rock similar model test material and preparation method thereof |
| CN106842303A (en) * | 2016-12-30 | 2017-06-13 | 中国石油天然气股份有限公司 | Gas saturation determines method and device |
| CN109095847A (en) * | 2018-08-14 | 2018-12-28 | 中冶建筑研究总院（深圳）有限公司 | A kind of method soft or hard rock compound rock stratum analog material and soft or hard rock is prepared using the analog material |
| CN110819066A (en) * | 2018-08-13 | 2020-02-21 | 中国石油化工股份有限公司 | Seismic physical model material, seismic physical model and preparation method thereof |
| CN112442254A (en) * | 2019-08-30 | 2021-03-05 | 中国石油化工股份有限公司 | Composition for preparing seismic physical model, seismic physical model and preparation and construction methods |
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| CN1772809A (en) * | 2005-11-10 | 2006-05-17 | 同济大学 | Polymer material for seismic physical model and its prepn |
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| CN1772809A (en) * | 2005-11-10 | 2006-05-17 | 同济大学 | Polymer material for seismic physical model and its prepn |
Non-Patent Citations (1)
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| 王汉鹏等: "新型地质力学模型试验相似材料的研制", 《岩石力学与工程学报》, vol. 25, no. 9, 30 September 2006 (2006-09-30), pages 1842 - 1847 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076390A (en) * | 2013-03-29 | 2014-10-01 | 中国石油天然气股份有限公司 | Complex tectonic earthquake physical model manufacturing method |
| CN104230298A (en) * | 2013-06-24 | 2014-12-24 | 中国石油大学 | Preparation method of man-made reservoir physical model, and special cementing agent for man-made reservoir physical model |
| CN105489099A (en) * | 2016-01-22 | 2016-04-13 | 中国石油天然气集团公司 | Fracture reservoir seismic physical model and preparation method thereof |
| CN105489099B (en) * | 2016-01-22 | 2018-03-06 | 中国石油天然气股份有限公司 | A kind of fracture reservoir seismic physical model and preparation method thereof |
| CN105967562A (en) * | 2016-05-18 | 2016-09-28 | 重庆大学 | Hard rock similar model test material and preparation method thereof |
| CN106842303A (en) * | 2016-12-30 | 2017-06-13 | 中国石油天然气股份有限公司 | Gas saturation determines method and device |
| CN106842303B (en) * | 2016-12-30 | 2019-07-05 | 中国石油天然气股份有限公司 | Gas saturation determines method and device |
| CN110819066A (en) * | 2018-08-13 | 2020-02-21 | 中国石油化工股份有限公司 | Seismic physical model material, seismic physical model and preparation method thereof |
| CN110819066B (en) * | 2018-08-13 | 2022-09-06 | 中国石油化工股份有限公司 | Seismic physical model material, seismic physical model and preparation method thereof |
| CN109095847A (en) * | 2018-08-14 | 2018-12-28 | 中冶建筑研究总院（深圳）有限公司 | A kind of method soft or hard rock compound rock stratum analog material and soft or hard rock is prepared using the analog material |
| CN112442254A (en) * | 2019-08-30 | 2021-03-05 | 中国石油化工股份有限公司 | Composition for preparing seismic physical model, seismic physical model and preparation and construction methods |
| CN112442254B (en) * | 2019-08-30 | 2023-12-05 | 中国石油化工股份有限公司 | Composition for preparing earthquake physical model, earthquake physical model and preparation and construction methods |
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