CN100355838C - Hydrophobic oleophilic self-cementing sand and its preparation method - Google Patents
Hydrophobic oleophilic self-cementing sand and its preparation method Download PDFInfo
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- CN100355838C CN100355838C CNB200610044245XA CN200610044245A CN100355838C CN 100355838 C CN100355838 C CN 100355838C CN B200610044245X A CNB200610044245X A CN B200610044245XA CN 200610044245 A CN200610044245 A CN 200610044245A CN 100355838 C CN100355838 C CN 100355838C
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Abstract
The present invention relates to hydrophobic oleophilic self-cementing sand and a preparation method thereof, which belongs to the technical field of petrochemical industry. A hydrophobic oleophilic membrane is covered on the surface of common river sand or quartz sand and is processed by compound finishing agent, and the hydrophobic oleophilic membrane is a protective membrane with hydrophobic oleophilic organic groups. The compound finishing agent is a mixture of 0.5 to 2 portions of organosilicate, fatty acid or soap and at least one component of the following: 5 to 15 portions of water glass, 5 to 15 portions of cement binder, 1 to 5 portions of solidifying agent, 1 to 5 portions of organic binding agent, and all the components are weight portions. The common river sand or the quartz sand and the compound finishing agent can be manufactured into required granules and backup sand with sufficient intensity in a granulator by the present invention, the backup sand can automatically cement in bottom hole environments so as to form a firm hydrophobic oleophilic type artificial borehole wall, and the present invention can attain the purpose of anti-sand, oil increasing and water resistance.
Description
Technical field
The present invention relates to hydrophobic oleophilic self-cementing sand and preparation method thereof, belong to the petrochemical technology field.
Background technology
In drilling well, completion, production and the stimulation treatment process of oil well, water is assembled in the immediate vicinity of wellbore of oil reservoir, cause the bottom water blocking, reduce oil well output, in high-pressure packing sand-control and fracturing process, it is husky that the immediate vicinity of wellbore of oil reservoir is inserted hydrophilic filling again, water blocking and the sand source that becomes sand production have been aggravated, and be hydrophobic lipophilic surface with the placing sand wettability reversal and can tie in the shaft bottom selfing, as pressure break and sand control pack sand, press down water and increase oily purpose to reach pressure break, sand control and selectivity, do not appear in the newspapers.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of hydrophobic oleophilic self-cementing sand and preparation method thereof, pressure break, sand control, selectivity that this hydrophobic oleophilic self-cementing sand is used for the oil field press down well stimulations such as water.
The hydrophobic oleophilic self-cementing sand of invention is to be covered with the hydrophobic oil-wet film at common river sand or quartz sand surface; the hydrophobic oil-wet film is to adopt composite treating agent to handle the protective membrane that contains hydrophobic oleophylic organic group that forms, and composite treating agent is organosilicate, lipid acid or soap of 0.5-2 part and mixing of following at least a component:
Water glass 5-15 part, cement 5-15 part, solidifying agent 1-5 part, organic binder bond 1-5 part.Be weight part, down together.
Above-mentioned solidifying agent is selected metal oxide, Sodium Silicofluoride or phosphoric acid salt for use.
Preferably, composite treating agent is:
Water glass 8-10 part, Sodium Silicofluoride 2-3 part, organic silicic acid sodium or calcium stearate 0.5-1 part, cement 8-10 part.
The hydrophobic oleophilic self-cementing sand preparation method is as follows:
Common river sand or quartz sand are mixed with each component of composite treating agent; stirring is transferred to granulation in the tablets press, and the discharging between 0.3～1.8mm of control particle diameter hangs on the cement flooring; after stirring 20-24 hour; sieve, can sieve out particle diameter and be respectively 0.3～0.6mm, 0.6～0.8mm; 0.8～1.2mm; 1.2 the placing sand of different sizes such as～1.8mm is packed with the inner lining plastic bag woven bag, stacks the use of can dispatching from the factory after 5-8 days.
The present invention makes the placing sand that requires particle and sufficient intensity with common river sand or quartz sand and composite treating agent in tablets press; this placing sand can be glued voluntarily under downhole environment; form solid oleophyllie hydrophobic type artificial borehole wall, the purpose that reaches sand control, increases oil and block water.
The placing sand of present industrial application is hydrophilic, the present invention can carry out the selfing knot in the shaft bottom when having put into practice placing sand is reversed to the hydrophobic lipophilic surface by hydrophilic surface, make the placing sand surface have hydrophobic oleophylic organic group and be difficult to and move with profit.Placing sand of the present invention is applied to the result that 10 mouthfuls of sand proof wells carry out pilot scale at Gudong field shows that it is stifled not only to have removed oil-reservoir water, has suppressed simultaneously to shake out, and the sand controlling result of oil well and oil offtake is risen significantly, moisture obvious decline.This technology is a kind of oil well production increasing novel process of Cheap highly effective.
Embodiment
Embodiment 1:
The common river sand and the composite treating agent of selected granularity are made the placing sand that requires particle and sufficient intensity in tablets press.
1, selecting granularity is that 0.2～1.0mm is through washing, 100 parts in exsiccant river sand (weight part, down together)
2, water glass is 10 parts
3, Sodium Silicofluoride is 2 parts
4, organic silicic acid sodium is 0.5 part
5, cement is 10 parts
Above material stirred is transferred to granulation in the tablets press, and control particle diameter 0.3～1.8mm discharging hangs on the cement flooring, and often stirs.Can sieve out particle diameter after 24 hours is 0.3～0.6mm, 0.6～0.8mm, and 0.8～1.2mm, the placing sand of different sizes such as 1.2～1.8mm is packed with the inner lining plastic bag woven bag, stacks the use of can dispatching from the factory in 5 days.
Embodiment 2:
The quartz sand and the composite treating agent of selected granularity are made the placing sand that requires particle and sufficient intensity in tablets press.
1, granularity is that 0.2～1.0mm is through washing, 100 parts of exsiccant quartz sands (weight part, down together)
2, water glass is 15 parts
3, Sodium Silicofluoride is 2.5 parts
4, calcium stearate is 0.8 part
5, cement is 10 parts.
Above material stirred be transferred to granulation in the tablets press; control particle diameter 0.3～1.8mm discharging; on the cement flooring, hang; and often stir, can sieve out particle diameter after 24 hours is 0.4～0.6mm, 0.6～0.8mm; 0.8～1.2mm; 1.2 the placing sand of different sizes such as～1.8mm is packed with the inner lining plastic bag woven bag, stacks the use of can dispatching from the factory in 6 days.
Claims (1)
1. the preparation method of hydrophobic oleophilic self-cementing sand, it is characterized in that being covered with the hydrophobic oil-wet film at common river sand or quartz sand surface, the hydrophobic oil-wet film is to adopt composite treating agent to handle the protective membrane that contains hydrophobic oleophylic organic group that forms, described composite treating agent is: water glass 8-10 part, Sodium Silicofluoride 2-3 part, organic silicic acid sodium or calcium stearate 0.5-1 part, cement 8-10 part;
Preparation process is as follows:
Common river sand or quartz sand are mixed with each component of composite treating agent; stirring is transferred to granulation in the tablets press, and control particle diameter 0.4～1.2mm discharging hangs on the cement flooring; stir 20-24 hour; sieve, can sieve out 0.3～0.6mm, 0.6～0.8mm; 0.8～1.2mm; 1.2 the placing sand of～1.8mm particle diameter is packed with the inner lining plastic bag woven bag, stacks the use of can dispatching from the factory after 5-8 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610044245XA CN100355838C (en) | 2006-05-24 | 2006-05-24 | Hydrophobic oleophilic self-cementing sand and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610044245XA CN100355838C (en) | 2006-05-24 | 2006-05-24 | Hydrophobic oleophilic self-cementing sand and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1884397A CN1884397A (en) | 2006-12-27 |
| CN100355838C true CN100355838C (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200610044245XA Expired - Fee Related CN100355838C (en) | 2006-05-24 | 2006-05-24 | Hydrophobic oleophilic self-cementing sand and its preparation method |
Country Status (1)
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| CN (1) | CN100355838C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372889B (en) * | 2008-09-04 | 2012-10-24 | 安东石油技术（集团）有限公司 | Novel horizontal well sand preventing well completion structure |
| CN102199422B (en) * | 2010-03-26 | 2013-07-10 | 北京仁创科技集团有限公司 | Fracturing propping agent, preparation method thereof, and deep well fracturing method |
| CN104230298B (en) * | 2013-06-24 | 2016-01-13 | 中国石油大学(北京) | The preparation method of artificial reservoir model |
| CN106380012A (en) * | 2016-11-02 | 2017-02-08 | 张家港市双盈印染有限公司 | Printing and dyeing sewage and waste material treatment system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101009A (en) * | 1987-03-30 | 1988-09-21 | 徐功姚 | Hydrophobic powder for building and production method thereof |
| CN1058982A (en) * | 1990-08-13 | 1992-02-26 | 徐家宁 | High effective hydrophobe and production method thereof |
| CN1060863A (en) * | 1991-08-22 | 1992-05-06 | 代灵 | Building hydrophobic powder and production method thereof |
| CN1070212A (en) * | 1992-08-11 | 1993-03-24 | 刘卫林 | Synthetic hydrophobing agent and manufacture method thereof |
| WO2001023703A1 (en) * | 1999-09-24 | 2001-04-05 | Akzo Nobel N.V. | A method of improving the permeability of an underground petroleum-containing formation |
| CN1366127A (en) * | 2001-01-18 | 2002-08-28 | 孙杰 | Selective water-plugging technology for preventing sand in oil well |
-
2006
- 2006-05-24 CN CNB200610044245XA patent/CN100355838C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101009A (en) * | 1987-03-30 | 1988-09-21 | 徐功姚 | Hydrophobic powder for building and production method thereof |
| CN1058982A (en) * | 1990-08-13 | 1992-02-26 | 徐家宁 | High effective hydrophobe and production method thereof |
| CN1060863A (en) * | 1991-08-22 | 1992-05-06 | 代灵 | Building hydrophobic powder and production method thereof |
| CN1070212A (en) * | 1992-08-11 | 1993-03-24 | 刘卫林 | Synthetic hydrophobing agent and manufacture method thereof |
| WO2001023703A1 (en) * | 1999-09-24 | 2001-04-05 | Akzo Nobel N.V. | A method of improving the permeability of an underground petroleum-containing formation |
| CN1366127A (en) * | 2001-01-18 | 2002-08-28 | 孙杰 | Selective water-plugging technology for preventing sand in oil well |
Non-Patent Citations (3)
| Title |
|---|
| 大庆油田疏水缔合聚合物-碱-表面活性剂三元复合驱提高采收率研究 罗平亚等.大庆石油地质与开发，第20卷第6期 2001 * |
| 油井防砂的新填料—螯合型钛酸酯偶联剂 李其霆.石油钻采工艺，第6期 1983 * |
| 疏水缔合物在渤海绥中油田油砂上的静态吸附等温线测定 周长静等.海洋石油，第25卷第4期 2005 * |
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| CN1884397A (en) | 2006-12-27 |
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