CN1587960A - Method for producing artificial sandstone for tertiary oil production in oil field - Google Patents
Method for producing artificial sandstone for tertiary oil production in oil field Download PDFInfo
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- CN1587960A CN1587960A CN 200410071929 CN200410071929A CN1587960A CN 1587960 A CN1587960 A CN 1587960A CN 200410071929 CN200410071929 CN 200410071929 CN 200410071929 A CN200410071929 A CN 200410071929A CN 1587960 A CN1587960 A CN 1587960A
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Abstract
The invention relates to an artificial sandstone manufacture method of oil field tertiary oil recovery, basically including the following steps that firstly using aluminium phosphate to cement quartz sand having different particle diameter, which is then to be pressed by sixty t hydraulic press, dried wet core to increase temperature gradient warm up from 150 deg. to 960 deg. Under which the substance needed is produced. Preparation of cementitious agent includes the water is added after match of aluminium hydroxide and phosphoric acid, which is heated on electric furnace to boil then moved away and then heated to boil again, lasting ten minutes. Artificial anisotropic core created by the invention can practically express practical coefficient of permeability of underground rock, simulate practical condition of underground oil layer and do physical simulation experiment of core edge-water encroachment in doors.
Description
Technical field
The invention belongs to and improve the method for making that oil recovery rate is carried out laboratory core drive physical analogue experimental article, particularly relate to a kind of method for making of artificial sandstone for tertiary oil production in oil field.
Background technology
Before the rig-site utilization, must confirm that this technology improves the degree of recovery ratio at present known tertiary oil recovery technology by the laboratory core physical simulation experiment.Improve recovery ratio and generally be greater than 10%, just can enter site test.And the key of laboratory core physical simulation experiment is a rock core.The rock core one that adopts the drilling well sealing core drill to obtain is that volume is too little, does not have representativeness; The 2nd, there is not nonuniformity, fully the truth of simulate formation oil reservoir.So must adopt artificial inhomogeneous rock core, carry out the experiment of laboratory core drive physical analogue.At present domestic each research unit is mostly with the loose sandpipe rock core that adds, or with the synthetic core of epoxy gluing, the real permeability that these rock cores all can not the truly expressed subsurface rock.
Summary of the invention
The present invention provides a kind of method for making with artificial sandstone for tertiary oil production in oil field of the true permeability that can better express subsurface rock for solving the technical matters that exists in the known technology.
It may further comprise the steps substantially for the technical scheme that solves the technical matters that exists in the known technology and take in the present invention: earlier with the silica sand of the glued different-grain diameter of aluminum phosphate, with the compacting of 60 t hydraulic press, the rock core that will wet then oven dry back forms from 150 ℃ of gradient increased temperature to 960 ℃ sintering;
The preparation of aluminum phosphate cementing matter: will be with phosphoric acid: aluminium hydroxide: after the weight ratio of water=100: 21.3: 30 is made into, heats to boiling and take off immediately, and then the boiling 10 minutes of heating.
Advantage and good effect that the present invention has are: the real permeability of the artificial inhomogeneous rock core energy truly expressed subsurface rock that employing the present invention makes.But the truth of simulate formation oil reservoir is carried out the experiment of laboratory core drive physical analogue.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1
1) quartzy sand grains is through screening:
To purchasing next silica sand, sieve with the standard separating sieve, concrete quartzy Grains number is: 30,50,70,100,300 orders.Method for sieving is that if sieve 30 purpose silica sands, then with 30 orders and the combination of 40 purpose standard sieves, the part of continuing to employ was 30 mesh sieves, and did not have the center section of 40 mesh sieves.The silica sand of not crossing 30 mesh sieves does not then re-use, and the part of having crossed 40 mesh sieves is used for sorting 50 order silica sands, and the later silica sand sorting of 50 orders is identical with 30 purpose method for separating.
The solarization of clay choosing after 150 ℃ of oven dry, is worn into fine powder 300 orders below with muller with the clay (kaolin) purchased, and is standby.
2) the aluminum phosphate cementing matter boils
The aluminum phosphate cementing matter prescription:
Phosphoric acid: aluminium hydroxide: water=100: 21.3: 30 (by weight calculating)
By above proportioning, take by weighing phosphoric acid, aluminium hydroxide and water and join in the beaker, be placed on be heated to boiling on the electric furnace after, take off immediately, and then the boiling 10 minutes of heating, add water to above proportioning again and behind ebuillition of heated on the electric furnace, take off, natural cooling is standby.
3) glue sand is mixed
The rock core component prescription of different permeabilities:
Quartzy Grains number: 30 50 70 100 300 clay aluminum phosphate glue penetration rate (μ m
2)
Composition weight g:5 5 20 35 45 30 20 0.2
5 15 25 25 30 30 20 0.35
10 20 25 25 30 30 20 0.7
15 25 25 25 20 30 20 1.0
30 25 25 15 15 30 20 2.0
40 25 25 10 10 25 15 3.0
50 30 20 10 10 25 15 5.0
By above prescription, take by weighing silica sand, clay, the phosphoric acid aluminium glue of different meshes, and put into an enamel tray, stir with putty knife is manual, sieve with 10 purpose screen clothes, put into enamel tray, with the diaphragm seal of north material, standby.
4) high temperature furnace preheating: in the compacting rock core, high temperature furnace is adjusted to 150 ℃ of preheatings.
5) model compacting
With the glue sand layering that the is mixed mould of packing into, add cover plate.Send into 60 tons of pressing machinees, the starting pressure machine makes the pressing machine pointer be stabilized in 50 tons and locates 3 minutes, and release is taken out.Promptly obtain heterogeneous core.
6) model oven dry
With the wet rock core of compression moulding, the constant temperature oven of putting into 120 ℃ was dried 24 hours, will remain on this temperature before the high temperature furnace of packing into, in case make moist always.
7) high temperature sintering
The rock core of drying forming is packed in the high temperature furnace, since 150 ℃ of intensifications, is 40 ℃/hour at 700 ℃ with interior heating gradient, 700-900 ℃ is 20 ℃/hour with interior heating gradient, 900-960 ℃ is 10 ℃/hour with interior heating gradient, when being warming up to 960 ℃, keeps constant temperature 4 hours.The high temperature furnace cooling process is identical with the heating gradient program, when temperature is reduced to 500 ℃, can lower the temperature naturally, does not need to continue control.The temperature of high temperature furnace is reduced to below 150 ℃, and rock core can be come out of the stove.
Can make the core permeability scope: 0.01～5 μ m
2
Rock core specification: cylinder rock core, 1 inch diameter, long 3～10cm; The multilayer heterogeneous core, long 40cm is (wide * high=4 * 4 or 4～1cm); The three-dimensional non-homogeneous model in big plane (25cm * 25cm * 5cm).The density of sandstone (rock core) is 2.53g/cm
3
Claims (1)
1. the method for making of an artificial sandstone for tertiary oil production in oil field, it may further comprise the steps substantially: be the silica sand of using the glued different-grain diameter of aluminum phosphate earlier, with the compacting of 60 t hydraulic press, the rock core that will wet then oven dry back forms from 150 ℃ of gradient increased temperature to 960 ℃ sintering again;
The preparation of aluminum phosphate cementing matter: will be with phosphoric acid: aluminium hydroxide: after the weight ratio of water=100: 21.3: 30 is made into, heats to boiling and take off immediately, and then the boiling 10 minutes of heating.
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| CN 200410071929 CN1587960A (en) | 2004-09-13 | 2004-09-13 | Method for producing artificial sandstone for tertiary oil production in oil field |
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| CN 200410071929 CN1587960A (en) | 2004-09-13 | 2004-09-13 | Method for producing artificial sandstone for tertiary oil production in oil field |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304830C (en) * | 2005-03-30 | 2007-03-14 | 大庆石油学院 | Process for making quartz sand epoxy resin cementitious non-homogeneous model |
| CN101435331A (en) * | 2008-12-05 | 2009-05-20 | 中国石化股份胜利油田分公司地质科学研究院 | Method for making cracking rock core |
| CN101798921A (en) * | 2010-02-21 | 2010-08-11 | 大庆油田有限责任公司 | Corestone manufacture method |
| CN101250999B (en) * | 2008-04-16 | 2011-06-15 | 中国地质大学（武汉） | Terra-imitating borehole and manufacture method thereof |
| CN101957278B (en) * | 2009-07-20 | 2012-05-30 | 中国石油天然气股份有限公司 | Preparation method of drill cutting rock core containing acid liquid indicator |
| CN101435330B (en) * | 2008-11-24 | 2012-07-04 | 中国石油集团长城钻探工程有限公司 | Method for manufacturing artificial rock core target |
| CN102749275A (en) * | 2012-06-04 | 2012-10-24 | 东北石油大学 | Visualized artificial core model and preparation method thereof |
| CN103135127A (en) * | 2011-12-05 | 2013-06-05 | 中国石油天然气股份有限公司 | Compact sandstone physical model and manufacturing method thereof |
| CN103159453A (en) * | 2013-03-22 | 2013-06-19 | 中国石油化工股份有限公司 | Central permeation simulation core for laboratory experiments and preparation method thereof |
| CN103411804A (en) * | 2013-07-03 | 2013-11-27 | 中国石油天然气股份有限公司 | Heterogeneous cemented rock core model with high-permeability layer and manufacturing method thereof |
| CN103454380A (en) * | 2013-08-15 | 2013-12-18 | 中国石油天然气股份有限公司 | Artificial rock core for evaluating damage of unconsolidated strata and manufacturing method thereof |
| CN104198243A (en) * | 2014-08-29 | 2014-12-10 | 中国石油天然气股份有限公司 | Preparation method of artificial core for simulating hydrate stratum skeleton in frozen soil area |
| CN104977196A (en) * | 2014-04-14 | 2015-10-14 | 中国石油化工股份有限公司 | Standard substance used in measurement of permeability, preparation method and application thereof |
| CN106153423A (en) * | 2016-08-12 | 2016-11-23 | 中国科学院武汉岩土力学研究所 | Mudstone sample, landwaste is utilized to reinvent the device and method of mudstone sample |
| CN108225861A (en) * | 2018-01-15 | 2018-06-29 | 西南石油大学 | A kind of experimental method for being used to fill and present heterogeneous burning into sand model |
| CN112304722A (en) * | 2020-10-20 | 2021-02-02 | 中国矿业大学 | Method for remodeling argillaceous weakly cemented sandstone |
-
2004
- 2004-09-13 CN CN 200410071929 patent/CN1587960A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304830C (en) * | 2005-03-30 | 2007-03-14 | 大庆石油学院 | Process for making quartz sand epoxy resin cementitious non-homogeneous model |
| CN101250999B (en) * | 2008-04-16 | 2011-06-15 | 中国地质大学（武汉） | Terra-imitating borehole and manufacture method thereof |
| CN101435330B (en) * | 2008-11-24 | 2012-07-04 | 中国石油集团长城钻探工程有限公司 | Method for manufacturing artificial rock core target |
| CN101435331A (en) * | 2008-12-05 | 2009-05-20 | 中国石化股份胜利油田分公司地质科学研究院 | Method for making cracking rock core |
| CN101957278B (en) * | 2009-07-20 | 2012-05-30 | 中国石油天然气股份有限公司 | Preparation method of drill cutting rock core containing acid liquid indicator |
| CN101798921A (en) * | 2010-02-21 | 2010-08-11 | 大庆油田有限责任公司 | Corestone manufacture method |
| CN103135127B (en) * | 2011-12-05 | 2016-06-08 | 中国石油天然气股份有限公司 | Compact sandstone physical model and manufacturing method thereof |
| CN103135127A (en) * | 2011-12-05 | 2013-06-05 | 中国石油天然气股份有限公司 | Compact sandstone physical model and manufacturing method thereof |
| CN102749275A (en) * | 2012-06-04 | 2012-10-24 | 东北石油大学 | Visualized artificial core model and preparation method thereof |
| CN102749275B (en) * | 2012-06-04 | 2017-08-15 | 东北石油大学 | A kind of preparation method for visualizing artificial core model |
| CN103159453A (en) * | 2013-03-22 | 2013-06-19 | 中国石油化工股份有限公司 | Central permeation simulation core for laboratory experiments and preparation method thereof |
| CN103411804A (en) * | 2013-07-03 | 2013-11-27 | 中国石油天然气股份有限公司 | Heterogeneous cemented rock core model with high-permeability layer and manufacturing method thereof |
| CN103411804B (en) * | 2013-07-03 | 2015-12-02 | 中国石油天然气股份有限公司 | Heterogeneous cemented rock core model with high-permeability layer and manufacturing method thereof |
| CN103454380A (en) * | 2013-08-15 | 2013-12-18 | 中国石油天然气股份有限公司 | Artificial rock core for evaluating damage of unconsolidated strata and manufacturing method thereof |
| CN104977196A (en) * | 2014-04-14 | 2015-10-14 | 中国石油化工股份有限公司 | Standard substance used in measurement of permeability, preparation method and application thereof |
| CN104198243A (en) * | 2014-08-29 | 2014-12-10 | 中国石油天然气股份有限公司 | Preparation method of artificial core for simulating hydrate stratum skeleton in frozen soil area |
| CN106153423A (en) * | 2016-08-12 | 2016-11-23 | 中国科学院武汉岩土力学研究所 | Mudstone sample, landwaste is utilized to reinvent the device and method of mudstone sample |
| CN106153423B (en) * | 2016-08-12 | 2019-10-25 | 中国科学院武汉岩土力学研究所 | Mudstone sample utilizes the device and method of landwaste remodeling mudstone sample |
| CN108225861A (en) * | 2018-01-15 | 2018-06-29 | 西南石油大学 | A kind of experimental method for being used to fill and present heterogeneous burning into sand model |
| CN108225861B (en) * | 2018-01-15 | 2020-12-08 | 西南石油大学 | Experimental method for filling heterogeneous sand inclusion model |
| CN112304722A (en) * | 2020-10-20 | 2021-02-02 | 中国矿业大学 | Method for remodeling argillaceous weakly cemented sandstone |
| CN112304722B (en) * | 2020-10-20 | 2021-09-21 | 中国矿业大学 | Method for remodeling argillaceous weakly cemented sandstone |
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