CN102838972A - Clay stabilizer special for huff and puff of rocket power compound heat carrier - Google Patents
Clay stabilizer special for huff and puff of rocket power compound heat carrier Download PDFInfo
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- CN102838972A CN102838972A CN2012102922052A CN201210292205A CN102838972A CN 102838972 A CN102838972 A CN 102838972A CN 2012102922052 A CN2012102922052 A CN 2012102922052A CN 201210292205 A CN201210292205 A CN 201210292205A CN 102838972 A CN102838972 A CN 102838972A
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- clay stabilizer
- heat carrier
- clay
- rocket
- huff
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Abstract
The invention discloses a clay stabilizer special for huff and puff of a rocket power compound heat carrier. The clay stabilizer resolves the problem that an existing clay stabilizer is bad in performance in a high temperature environment. The clay stabilizer comprises, by weight, 1.0-1.5% of trimethylamine quaternary ammonium salt, 2-3% of ammonium chloride, 1.0-1.5% of ethyl alcohol, and the balance water. The formula system of the clay stabilizer is good in temperature resistant performance, the clay stabilizer is good in compatibility with steam, the high-temperature component in the rocket power compound heat carrier, and the adaptive stratum temperature can be up to 300 DEG C.
Description
Technical field
The present invention relates to a kind of clay stabilizer in the oil recovery field, oil field, especially a kind of rocket-powered composite heat carrier special-purpose clay stabilizer of handling up.
Background technology
Since two thousand five, Daqing oil field is carried out the rocket-powered composite heat carrier mouthful well surplus the test in place 90 of handling up in caster bed heavy oil block, loudspeaker Sa apricot transitional zone accumulative total, has obtained better economic and social benefit.Because thereby the water vapour in the rocket-powered composite heat carrier causes the reservoir of injury LOW PERMEABILITY RESERVOIR such as sensitive reservoir clay swelling, grain breakage migration easily; Reduce penetrating quality; Clay stabilizer is one of best mode that improves sensitive reservoir clay swelling, grain breakage migration; But existing clay stabilizer formula system and slightly acidic high temperature fluid compatibleness are poor, and anti-swollen effect does not reach corresponding economic and technical norms under the higher environment of temperature, can not effectively prevent the expansion of oil reservoir medium clay soil and the migration of clay particle; Thereby make the rate of permeation of some Middle-Low Permeability Reservoirs further reduce, clay stabilizer injects difficulty.
Summary of the invention
In order to overcome the deficiency in the background technology; The present invention provides a kind of rocket-powered composite heat carrier special-purpose clay stabilizer of handling up; This clay stabilizer is used for sensitive reservoir to be adopted in the rocket-powered composite heat carrier huff and puff oil recovery; It can be controlled sensitive reservoir effectively and meet phenomenons such as the clay swelling of water vapor generation, crushed particles migration, makes in sensitive reservoir, to adopt composite heat carrier huff and puff oil recovery technology more feasible.
The technical scheme that the present invention adopted is: a kind of rocket-powered composite heat carrier special-purpose clay stabilizer of handling up comprises following component according to weight percent:
The Trimethylamine 99 quaternary ammonium salt: 1.0 ~ 1.5%,
Ammonium chloride: 2 ~ 3%,
Ethanol: 1.0 ~ 1.5%,
Surplus is a water.
The preparation method of above-mentioned clay stabilizer: press formula rate and in water, drop into the Trimethylamine 99 quaternary ammonium salt, the limit adds the waterside stirring at low speed, until mixing, adds ammonium chloride, ethanol then in proportion, and stirring at low speed is evenly processed mixing solutions.
During use, the liquid after will mixing at the scene is injected in the different intervals through oil pipe.
Because the positively charged ion around the permanent negative charge of clay particle band need adsorb reaches balance, therefore need to contain in the clay stabilizer and can ionization go out cationic material.Clay stabilizer of the present invention has comprised organic clay stabilizers Trimethylamine 99 quaternary ammonium salt and inorganic clay stabilizers NH
4Cl, its anti-swollen principle: 1. NH
4Cl is that inorganic salts clay stabilizer hydrolysis rate is fast, can produce the positively charged ion that clay particle needs fast, because the movement velocity of inorganic ion and water molecules is suitable, they can get into the clay interbed simultaneously, can the short period of time stablize clay preferably; 2. the Trimethylamine 99 quaternary ammonium salt is that the organic clay stabilizers positive charge density is high; Can form multipoint adsorption with a plurality of electronegative clay particles simultaneously; After the absorption; Form layer protecting film on the surface of clay particle, prevent aquation, expansion, dispersion, the migration of clay particle, and antiacid, alkali, oily ability are all stronger.
The present invention has following beneficial effect: the clay stabilizer formula system heat resistance that the present invention relates to is good; Good with the high-temperature component-water vapour compatibility in the rocket-powered composite heat carrier; Adapting to FT can be up to 300 ℃, and pH value accommodation is 5 ~ 7.
Embodiment
Below in conjunction with embodiment the present invention is described further:
Instance 1: the preparation of clay stabilizer:
Is that the ratio of 1.5:3:1.5:94 is prepared the rocket-powered composite heat carrier special-purpose clay stabilizer of handling up with Trimethylamine 99 quaternary ammonium salt, ammonium chloride, second alcohol and water in mass ratio; Be specially: in water, drop into the Trimethylamine 99 quaternary ammonium salt according to the above ratio; The limit adds Trimethylamine 99 quaternary ammonium Yanbian high-speed stirring, until mixing, adds ammonium chloride, ethanol then in proportion; High-speed stirring is evenly processed mixing solutions, is the rocket-powered composite heat carrier special-purpose clay stabilizer of handling up.
Embodiment 2: the experiment of clay stabilizer heat resistance:
Experimental technique is: Trimethylamine 99 quaternary ammonium salt, ammonium chloride, second alcohol and water are pressed mass ratio 1:2:1:96; Prepare the rocket-powered composite heat carrier special-purpose clay stabilizer of handling up; This clay stabilizer is placed 300 ℃ of baking ovens; Heating 48h has or not phenomenons such as deposition, muddiness in the sample of observation adding clay stabilizer.Experimental result sees the following form:
Table 1 heat resistance test experiments result
Can find out that from experimental result the aging liquid of the special-purpose clay stabilizer of rocket-powered composite heat carrier does not have deposition, no turbid phenomenon, heat resistance is good.
Embodiment 3: the performance measurement of the special-purpose clay stabilizer of rocket-powered composite heat carrier:
Experimental technique is: accurately take by weighing 5.000g rock end and pour in the survey tube, under predetermined pressure, measure the rock core height H behind the pressurization 5min
0The survey tube that suppresses rock core is installed on the shale expansion tester main body, regulates setting nut and make rock pillar initial bubble height be shown as 0.00mm; After setting the time-write interval; Slowly pour into by Trimethylamine 99 quaternary ammonium salt, ammonium chloride, ethanol and quality than the special-purpose clay stabilization agent solution of handling up for the rocket-powered composite heat carrier of 1.5:3:1.5:94 preparation; Start registering instrument, record rock core expansion height H after expansion is highly stable
1Calculate rate of expansion: B=[H
1/ H
0] * 100%.Experimental result sees the following form:
From experimental result, can find out, be 73.71% in the anti-swollen rate of the special-purpose clay stabilizer of rocket-powered composite heat carrier after aging of heating, and prevents swollen respond wellly, and common clay stabilizer performance index are poor.
Claims (1)
1. a rocket-powered composite heat carrier special-purpose clay stabilizer of handling up comprises following component according to weight percent:
The Trimethylamine 99 quaternary ammonium salt: 1.0 ~ 1.5%,
Ammonium chloride: 2 ~ 3%,
Ethanol: 1.0 ~ 1.5%,
Surplus is a water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102922052A CN102838972A (en) | 2012-08-17 | 2012-08-17 | Clay stabilizer special for huff and puff of rocket power compound heat carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102922052A CN102838972A (en) | 2012-08-17 | 2012-08-17 | Clay stabilizer special for huff and puff of rocket power compound heat carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102838972A true CN102838972A (en) | 2012-12-26 |
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ID=47366698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102922052A Pending CN102838972A (en) | 2012-08-17 | 2012-08-17 | Clay stabilizer special for huff and puff of rocket power compound heat carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102838972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626017A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Use method for steam injection clay anti-expansion agent accompanied injection of water-sensitive heavy oil well |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717625A (en) * | 2009-11-23 | 2010-06-02 | 大庆石油学院 | Clay stabilizing agent suitable for low-permeability oil pool |
-
2012
- 2012-08-17 CN CN2012102922052A patent/CN102838972A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717625A (en) * | 2009-11-23 | 2010-06-02 | 大庆石油学院 | Clay stabilizing agent suitable for low-permeability oil pool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626017A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Use method for steam injection clay anti-expansion agent accompanied injection of water-sensitive heavy oil well |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121226 |