CN105738179A - Manufacturing method of low-cost sandstone artificial rock core for experimental teaching - Google Patents
Manufacturing method of low-cost sandstone artificial rock core for experimental teaching Download PDFInfo
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- CN105738179A CN105738179A CN201610237965.1A CN201610237965A CN105738179A CN 105738179 A CN105738179 A CN 105738179A CN 201610237965 A CN201610237965 A CN 201610237965A CN 105738179 A CN105738179 A CN 105738179A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention provides a manufacturing method of a low-cost sandstone artificial rock core for experimental teaching and relates to the technical field of petroleum engineering.The manufacturing method of the low-cost sandstone artificial rock core comprises the following steps that rock core framework particles different in particle diameter are selected; the framework particles are mixed with a cementing agent, and distilled water is added for even stirring; the mixture is charged into a mold, the mold is arranged in an artificial rock core manufacturing device for pressure exerting, the mixture is taken out and put in a high-temperature drying oven for drying and shape fixing after cementing of the artificial rock core is completed, and cutting is performed after natural cooling is performed to reach normal temperature to obtain a standard test sample, namely the low-cost sandstone artificial rock core.The rock cores different in porosity, permeability and cementation degree are manufactured under the condition that the usage amount of the cementing agent and the diameters of sand grains are changed.The rock cores manufactured by adopting the manufacturing method are similar to natural rock cores in appearance, shape, pore structure, cementation degree and other aspects and can be used for rock core flow experiments.The manufacturing method of the low-cost sandstone artificial rock core for experimental teaching is simple, safe, easy to operate and wide in material source and can be widely applied to general teaching experiments.
Description
Technical field
The present invention relates to the manufacture method of rock core in petroleum works technical field, be the manufacture method of the low cost sandstone artificial core of a kind of experimental teaching.
Background technology
Rock core physical testing simulation experiment is one of scientific research means particularly important in In Oil Field Exploration And Development process, it is usually used in obtaining the basic physical properties parameter of oil reservoir, instruct the problem run in oil reservoir recovery process, be especially favorably improved the study mechanism of the rate of oil and gas recovery.At present, Artificial Core Making method mainly has quartz sand epoxy resin cementitious, quartz sand or glass bead filling and quartz sand aluminum phosphate sintering etc. several, wherein quartz sand aluminum phosphate sintering process makes the poor repeatability of rock core, quartz sand or glass bead filling model are without cement, its aspect such as pore-size, pore structure and natural core difference are relatively big, and the application of both rock cores is restricted；The blowhole size of quartz sand epoxide-resin agglutinated and architectural feature and natural core are close, but the complexity of preparation, mode of operation, and the restriction of raw material sources, making it difficult to it is extended on a large scale in the middle of laboratory test and experimental teaching.
Summary of the invention
In order to overcome the deficiency of background technology, it is an object of the invention to develop the manufacture method of a kind of low cost sandstone artificial core for experimental teaching.This manufacture method is simple, safe, easily operated, material source is extensive；The sandstone reservoir artificial core made not only has pore character and the Penetration Signature of natural core, but also can promote on a large scale.
The technical scheme is that a kind of manufacture method step for the low cost sandstone artificial core of experimental teaching is as follows:
A, selection suitable media are as the material making described artificial core；
B, sand grains particle diameter and cement content are as two principal elements of rock core physical property, by controlling the artificial core of two different permeabilities of factor preparation, porosity；
C, use standard inspection sieve screen the quartz sand of suitable particle diameter as rock matrix, then weigh sand grains and the portland cement of certain mass respectively with balance；
D, sand grains is mixed with portland cement, distilled water is mixed by whipping process into wherein, until three's mix homogeneously, until it reaches do not have obvious moisture to ooze out, and mixture is pinched reality, effect that will not be loose；
E, fill this blend into mould and be placed on rock core preparing device, then apply the pressure 24h of more than 23MPa, make cement and sand grains, moisture fully cementing；
F, taking-up rock sample, and rock sample is placed in high temperature drying case heat drying 4～6h at 108 DEG C；
G, taking-up drying sample, be cut to standard test samples (Φ 25 × 100mm)；
H, the artificial core of standard test samples is used for the test experiments of different physical properties.
According to the sandstone artificial core that the present invention proposes, including following component, wherein each component calculates with weight/mass percentage composition:
Portland cement 45%～60%；
Common quartz sand 27%～35%；
Distilled water: 13%～20%；
Aforesaid sandstone artificial core, the particle diameter of described sand grains is 0.28mm (60 order)～1.5mm (13 order)；
Further saying, aforesaid sandstone artificial core, described clay mineral is portland cement.
Further saying, aforesaid sandstone artificial core, described water is distilled water, reduces the impact on rock core character of the water intermediate ion；
By technique scheme, a kind of low cost sandstone artificial core for experimental teaching of the present invention and preparation method thereof has the advantage that the portland cement of employing is simple to operation as preparation method and the technique of the artificial core of cement, repeatable all high with success rate, experiment repeatedly obtains the control secondary factors affecting artificial core permeability, the influence factor main by control artificial core sand grains particle diameter and sand ash ratio the two controls core permeability, the artificial core that different experiments requires can be obtained, can also by its substantial amounts of apply to routine experimentation teaching in.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, is below that the preferably case study on implementation of the present invention describes in detail as follows.
Accompanying drawing explanation
Fig. 1 is rock core fixture longitudinal sectional drawing；
Wherein in figure, 1. hexagon socket head cap screw, 2. core sample, 3. rock core fixture, 4. pad, 5. screw, 6. clamp base；
Fig. 2 is rock core fixture horizontal section；
Wherein in figure, 1. hexagon socket head cap screw, 2. core sample, 3. rock core fixture；
Fig. 3 is core sample.
Detailed description of the invention
For further setting forth the present invention thus reaching technological means and effect that predetermined goal of the invention is taked, to sandstone artificial core and preparation method thereof its detailed description of the invention, feature and effect thereof of proposing according to the present invention, describe in detail as after.
Case study on implementation 1
The sandstone artificial core that the present invention relates to, including following component, wherein each component calculates with weight/mass percentage composition,
Portland cement 57%；
Common quartz sand 28%；
Distilled water: 15%；
The preparation method of sandstone artificial core, comprises the steps:
The quartz sand screened with the standard screen of 60 orders is as rock matrix, with cementing agent, distilled water Homogeneous phase mixing；
Fill this blend into mould, apply the pressure 24h of more than 23MPa so that cement is fully cementing with sand grains, moisture；Take out rock sample and be placed in high temperature drying case in 108 DEG C of heating 4～6h；
Take out drying sample and be cut into standard test samples (Φ 25 × 100mm)；
The artificial core made is used for the experiment test of different physical properties.
Case study on implementation 2
The sandstone artificial core of the present invention, including following component, wherein each component calculates with weight/mass percentage composition,
Portland cement 57%；
Common quartz sand 28%；
Distilled water: 15%；
The preparation method of sandstone artificial core, comprises the steps:
The quartz sand screened with the standard screen of 40 orders is as rock matrix, with cementing agent, distilled water Homogeneous phase mixing；
Fill this blend into mould, apply the pressure 24h of more than 23MPa so that cement is fully cementing with sand grains, moisture；Take out rock sample and be placed in high temperature drying case in 108 DEG C of heating 4～6h；
Take out drying sample and be cut into standard test samples (Φ 25 × 100mm)；
The artificial core made is used for the experiment test of different physical properties.
Case study on implementation 3
The sandstone artificial core of the present invention, including following component, wherein each component calculates with weight/mass percentage composition,
Portland cement 57%；
Common quartz sand 28%；
Distilled water: 15%；
The preparation method of sandstone artificial core, comprises the steps:
The quartz sand screened with the standard screen of 20 orders is as rock matrix, with cementing agent, distilled water Homogeneous phase mixing；
Fill this blend into mould, apply the pressure 24h of more than 23MPa so that cement is fully cementing with sand grains, moisture；Take out rock sample and be placed in high temperature drying case in 108 DEG C of heating 4～6h；
Take out drying sample and be cut into standard test samples (Φ 25 × 100mm)；
The artificial core made is used for the experiment test of different physical properties.
Case study on implementation 4
The sandstone artificial core of the present invention, including following component, wherein each component calculates with weight/mass percentage composition,
Portland cement 57%；
Common quartz sand 28%；
Distilled water: 15%；
The preparation method of sandstone artificial core, comprises the steps:
The quartz sand screened with the standard screen of 13 orders is as rock matrix, with cementing agent, distilled water Homogeneous phase mixing；
Fill this blend into mould, apply the pressure 24h of more than 23MPa so that cement is fully cementing with sand grains, moisture；Take out rock sample and be placed in high temperature drying case in 108 DEG C of heating 4～6h；
Take out drying sample and be cut into standard test samples (Φ 25 × 100mm)；
The artificial core made is used for the experiment test of different physical properties.
The artificial core experimental result of each embodiment is as shown in the table:
The artificial core of each embodiment is as shown in Figure 3.
Claims (4)
1. the manufacture method for the low cost sandstone artificial core of experimental teaching, it is characterised in that its formula includes following component by mass percentage: portland cement 45%～60%, common quartz sand 27%～35%, distilled water 13%～20%.
2. the manufacture method of a kind of low cost sandstone artificial core for experimental teaching according to claim 1, it is characterised in that manufacturing process comprises the following steps:
(1) first quartz sand standard inspection sieve is screened, then weigh quartz sand and portland cement with balance respectively；
(2) in mixing quartz sand with silicate process, add distilled water, and stir to three's Homogeneous phase mixing；
(3) fill this blend into mould and be placed on rock core preparing device, then apply the pressure 24h of 23MPa, make cement and quartz sand, distilled water cementing completely；
(4) rock sample is taken out it is placed in high temperature drying case at 108 DEG C heat drying 4～6h；
(5) it is 25mm, the long test specimen for 100mm that drying sample cuts into diameter.
3. the manufacture method of a kind of low cost sandstone artificial core for experimental teaching according to claim 1, it is characterised in that the particle diameter of described quartz sand is 0.28mm～1.5mm.
4. the manufacture method of a kind of low cost sandstone artificial core for experimental teaching according to claim 1, it is characterised in that described portland cement be numbered 300 Portland cement.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404496A (en) * | 2016-12-12 | 2017-02-15 | 西南石油大学 | Physical simulation artificial core model for horizontal well chemical flooding and preparation method thereof |
| CN106501054A (en) * | 2016-12-12 | 2017-03-15 | 西南石油大学 | A kind of mould for preparing artificial side's rock core and the preparation method of square rock core |
| CN106596223A (en) * | 2016-12-12 | 2017-04-26 | 西南石油大学 | Production method of rock core for compact gravel rock oil displacement |
| CN106769329A (en) * | 2017-02-10 | 2017-05-31 | 西南石油大学 | A kind of sand homogenizing device for preparing artificial homogeneous long core |
| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN108414312A (en) * | 2018-02-14 | 2018-08-17 | 中国石油大学(北京) | A kind of artificial core and preparation method thereof |
| CN108568889A (en) * | 2017-03-14 | 2018-09-25 | 中国石油化工股份有限公司 | A kind of preparation method of artificial cap rock |
| CN109187133A (en) * | 2018-09-18 | 2019-01-11 | 中国石油大学(华东) | The preparation method of preset microscopic damage artificial core |
| CN109357921A (en) * | 2018-10-10 | 2019-02-19 | 成都理工大学 | A kind of fracture hole oil reservoir Artificial Core Making method that parameter is controllable |
| CN109443877A (en) * | 2018-12-16 | 2019-03-08 | 东北石油大学 | A kind of thick oil steam drive high temperature high voltage resistant rock core preparation method |
| CN110702477A (en) * | 2019-09-29 | 2020-01-17 | 东北石油大学 | Preparation method of inorganic/organic compound composite cemented artificial rock core |
| CN111122572A (en) * | 2019-12-30 | 2020-05-08 | 中国地质大学（武汉） | Method for analyzing development degree of inner seam of quartz particle |
| CN111610081A (en) * | 2020-05-09 | 2020-09-01 | 中国科学院地质与地球物理研究所 | Artificial rock core and manufacturing method thereof |
| CN112857935A (en) * | 2021-01-22 | 2021-05-28 | 上海大学 | Preparation method of large-grade-difference heterogeneous nonmagnetic core |
| CN112857934A (en) * | 2021-01-22 | 2021-05-28 | 上海大学 | Preparation method of high-permeability homogeneous nonmagnetic core |
| CN114935486A (en) * | 2022-06-06 | 2022-08-23 | 陕西科技大学 | Heterogeneous core material based on corn straw core and preparation method thereof |
| CN117776663A (en) * | 2024-01-02 | 2024-03-29 | 成都理工大学 | Preparation method and application of oil-containing artificial zeolite sandstone |
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Cited By (20)
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|---|---|---|---|---|
| CN106501054B (en) * | 2016-12-12 | 2023-08-11 | 西南石油大学 | Mould for preparing artificial square rock core and preparation method of square rock core |
| CN106501054A (en) * | 2016-12-12 | 2017-03-15 | 西南石油大学 | A kind of mould for preparing artificial side's rock core and the preparation method of square rock core |
| CN106596223A (en) * | 2016-12-12 | 2017-04-26 | 西南石油大学 | Production method of rock core for compact gravel rock oil displacement |
| CN106404496A (en) * | 2016-12-12 | 2017-02-15 | 西南石油大学 | Physical simulation artificial core model for horizontal well chemical flooding and preparation method thereof |
| CN106596223B (en) * | 2016-12-12 | 2020-04-21 | 西南石油大学 | Preparation method of rock core for dense conglomerate oil displacement |
| CN106769329A (en) * | 2017-02-10 | 2017-05-31 | 西南石油大学 | A kind of sand homogenizing device for preparing artificial homogeneous long core |
| CN108568889A (en) * | 2017-03-14 | 2018-09-25 | 中国石油化工股份有限公司 | A kind of preparation method of artificial cap rock |
| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN108414312A (en) * | 2018-02-14 | 2018-08-17 | 中国石油大学(北京) | A kind of artificial core and preparation method thereof |
| CN109187133A (en) * | 2018-09-18 | 2019-01-11 | 中国石油大学(华东) | The preparation method of preset microscopic damage artificial core |
| CN109357921A (en) * | 2018-10-10 | 2019-02-19 | 成都理工大学 | A kind of fracture hole oil reservoir Artificial Core Making method that parameter is controllable |
| CN109443877A (en) * | 2018-12-16 | 2019-03-08 | 东北石油大学 | A kind of thick oil steam drive high temperature high voltage resistant rock core preparation method |
| CN110702477A (en) * | 2019-09-29 | 2020-01-17 | 东北石油大学 | Preparation method of inorganic/organic compound composite cemented artificial rock core |
| CN111122572A (en) * | 2019-12-30 | 2020-05-08 | 中国地质大学（武汉） | Method for analyzing development degree of inner seam of quartz particle |
| CN111610081A (en) * | 2020-05-09 | 2020-09-01 | 中国科学院地质与地球物理研究所 | Artificial rock core and manufacturing method thereof |
| CN111610081B (en) * | 2020-05-09 | 2021-08-24 | 中国科学院地质与地球物理研究所 | Artificial rock core and manufacturing method thereof |
| CN112857935A (en) * | 2021-01-22 | 2021-05-28 | 上海大学 | Preparation method of large-grade-difference heterogeneous nonmagnetic core |
| CN112857934A (en) * | 2021-01-22 | 2021-05-28 | 上海大学 | Preparation method of high-permeability homogeneous nonmagnetic core |
| CN114935486A (en) * | 2022-06-06 | 2022-08-23 | 陕西科技大学 | Heterogeneous core material based on corn straw core and preparation method thereof |
| CN117776663A (en) * | 2024-01-02 | 2024-03-29 | 成都理工大学 | Preparation method and application of oil-containing artificial zeolite sandstone |
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Application publication date: 20160706 |