CN1110750A - High-temp. compound resin sand-fixation agent and its preparation method - Google Patents
High-temp. compound resin sand-fixation agent and its preparation method Download PDFInfo
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- CN1110750A CN1110750A CN 94110354 CN94110354A CN1110750A CN 1110750 A CN1110750 A CN 1110750A CN 94110354 CN94110354 CN 94110354 CN 94110354 A CN94110354 A CN 94110354A CN 1110750 A CN1110750 A CN 1110750A
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Abstract
The refractory sand-fixating agent for reparing sandy oil well in production of viscose petroleum is a black colloidar liquid prepared with alcohol, phenolic resin and high-temp. emulsifier (for example, anticorrosion oil) through mixing in a certain proportion, strirring and dilution, and features good sand fixation effect, low influence to oil penetratability and no pollution. The sand-fixating agent provided by this invention can be solidified either under normal temp. or under high temp., and can be used for the viscose oil well with recovery by huff and buff to attain good sand fination effect.
Description
The present invention relates to a kind of compound resin sand-fixating agent of high temperature that is used for the workover treatment of viscous crude field manufacturing process sand well and preparation method thereof.
At present, the many oil fields of China are viscous crude field oil reservoir short texture particularly, and it is serious to shake out in the oil well production process, sand card tubing string often occurs, sand buries phenomenons such as oil reservoir, has a strong impact on the ordinary production of oil well.It is reported that both at home and abroad the oil field is being used number of chemical sand control technique and sand-fixating agent now, but these sand-fixating agents are failed all to solve and can be solidified at normal temperatures and can bear this key issue of high temperature, the requirement of incompatibility heavy oil wells steam soak.The sand-fixating agent that has then exists solid sand weak effect, period of validity weak point, reservoir permeability is influenced shortcomings such as bigger.
Task of the present invention is to provide compound resin sand-fixating agent of a kind of high temperature and preparation method thereof, and this kind sand-fixating agent was both curable at normal temperatures, can bear 350 ℃ high temperature simultaneously again, and solid sand is effective, and is less to the reservoir permeability influence.
The compound resin sand-fixating agent of high temperature provided by the invention is a kind of black colloid mucus, and viscosity is 100～300mPas in the time of 25 ℃, and its main component is ethanol, phenolic resin and high temperature emulsifier (as antiseptic oil), and three's weight ratio is 0～0.3: 2: 0.8～1.2.
The preparation method and the step of the compound resin sand-fixating agent of this kind high temperature are as follows:
1, under 10～80 ℃ of temperature and normal pressure, ethanol is joined in the phenolic resin solution by a certain percentage, mix on the limit, stir on the limit, the limit dilution;
2, in above-mentioned system, slowly add high temperature emulsifier (as antiseptic oil) by a certain percentage;
3, above-mentioned system is stirred, can obtain that viscosity is the black colloid mucus of 100～300mPas in the time of 25 ℃, that is the alleged compound resin sand-fixating agent of high temperature of the present invention.
Above-mentioned step 2,3 is all carried out under 10～80 ℃ and condition of normal pressure, and the weight ratio of ethanol, phenolic resin and three kinds of raw materials of high temperature emulsifier should be controlled at 0～0.3: in 2: 0.8～1.2 scopes.
The result of use of the compound resin sand-fixating agent of high temperature can be found out from following example:
Get 100 gram oil-sands (sand sample that obtains during oil well sand washing), it is cleaned up with cleaning agent.Get the compound resin sand-fixating agent adding of 20 these high temperature of gram and be cleaned in the clean oil-sand, put into the test tube of bottom perforate after stirring.Then, in test tube, drip the curing agent solution of concentration 10%.When curing agent solution stops to drip after test tube bottom tapping oozes out, wait under the normal temperature and coagulated 24 hours, surveying its intensity is 6MPa, permeability is 750mPas.Should place high-temperature high-pressure reaction kettle by fixed oil-sand, constant temperature is after 6 days under 350 ℃ of temperature, pressure 7MPa condition, and surveying its intensity is 7MPa, and permeability is 750mPas.
Sand-fixating agent provided by the present invention can solidify at normal temperatures, can bear high temperature again, utilizes it can obtain good solid sand effect in the heavy oil wells of cyclic steam stimulation.This kind sand-fixating agent is little to the reservoir permeability influence, and its preparation technology and site construction technology are all comparatively simple, and manufacturing process does not have the three wastes, is suitable for and applies.
Enforcement of the present invention is provided by the following example.
Embodiment 1: under 20 ℃ and normal pressure, 10 gram ethanol are added dropwise in the 70 gram phenolic resins, the stirring while dripping is until mixing; Under stirring condition, be added dropwise to 28 gram antiseptic oils again, obtaining viscosity after stirring is the black thick liquid nano sand-fixating agent of 150mPas.
Embodiment 2: under 30 ℃ and normal pressure, 40 gram antiseptic oils is added dropwise in the 70 gram phenolic resins, and the stirring while dripping, till mixing, obtaining viscosity is the black thick liquid nano sand-fixating agent of 200mPas.
Embodiment 3: temperature, pressure and operating procedure are all identical with embodiment 1, and the consumption of different is ethanol, phenolic resin and antiseptic oil is respectively 5 grams, 70 grams and 35 grams.
Claims (2)
1, the compound resin sand-fixating agent of a kind of high temperature, it is characterized in that, this kind sand-fixating agent is a kind of black colloid mucus, and viscosity is 100～300mPas in the time of 25 ℃, and the weight ratio of its main component is: ethanol: phenolic resin: high temperature emulsifier (antiseptic oil)=0～0.3: 2: 0.8～1.2.
2, the preparation method of the compound resin sand-fixating agent of a kind of high temperature is characterized in that, this preparation method's step is as follows:
(1) under 10～80 ℃ of temperature and normal pressure, ethanol is joined in the phenolic resin solution by a certain percentage, mix on the limit, stir on the limit, the limit dilution;
(2) in above-mentioned system, slowly add high temperature emulsifier (as antiseptic oil) by a certain percentage;
(3) above-mentioned system is stirred, can obtain the required compound resin sand-fixating agent of black colloid mucus high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110354 CN1110750A (en) | 1994-06-30 | 1994-06-30 | High-temp. compound resin sand-fixation agent and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110354 CN1110750A (en) | 1994-06-30 | 1994-06-30 | High-temp. compound resin sand-fixation agent and its preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1110750A true CN1110750A (en) | 1995-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110354 Pending CN1110750A (en) | 1994-06-30 | 1994-06-30 | High-temp. compound resin sand-fixation agent and its preparation method |
Country Status (1)
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| CN (1) | CN1110750A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069945C (en) * | 1998-09-14 | 2001-08-22 | 中国科学院广州化学研究所 | Heat-resistant packering agent for oil bearing reservoirs |
| CN100371415C (en) * | 2005-12-07 | 2008-02-27 | 赵彧 | Water dispersion composite sand-fixing agent formula |
| CN103788319A (en) * | 2012-11-02 | 2014-05-14 | 中国石油化工股份有限公司 | Preparation process of stratum residue polymer in-situ sand stabilizer |
| CN108659805A (en) * | 2018-06-11 | 2018-10-16 | 中国石油大学(华东) | A kind of emulsion-type low temperature sand-fixating agent and the preparation method and application thereof |
| CN109021951A (en) * | 2017-06-12 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of sand-fixating agent and preparation method thereof that consolidation reaction itself not occurring |
-
1994
- 1994-06-30 CN CN 94110354 patent/CN1110750A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069945C (en) * | 1998-09-14 | 2001-08-22 | 中国科学院广州化学研究所 | Heat-resistant packering agent for oil bearing reservoirs |
| CN100371415C (en) * | 2005-12-07 | 2008-02-27 | 赵彧 | Water dispersion composite sand-fixing agent formula |
| CN103788319A (en) * | 2012-11-02 | 2014-05-14 | 中国石油化工股份有限公司 | Preparation process of stratum residue polymer in-situ sand stabilizer |
| CN109021951A (en) * | 2017-06-12 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of sand-fixating agent and preparation method thereof that consolidation reaction itself not occurring |
| CN109021951B (en) * | 2017-06-12 | 2020-12-01 | 中国石油化工股份有限公司 | Sand consolidation agent free of consolidation reaction and preparation method thereof |
| CN108659805A (en) * | 2018-06-11 | 2018-10-16 | 中国石油大学(华东) | A kind of emulsion-type low temperature sand-fixating agent and the preparation method and application thereof |
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