Title:
CLAY STABILIZER FOR OIL FIELD
Document Type and Number:
WIPO Patent Application WO/2018/086106
Kind Code:
A1
Abstract:
Disclosed in the present invention is a clay stabilizer for an oil field. The clay stabilizer for an oil field comprises the following components in percentages by mass: 3% to 12% of ammonium chloride, 15% to 25% of small cationic surfactant, 3% to 10% of isopropyl alcohol, 1% to 5% of inorganic salt, and 60% to 70%deionized water. The clay stabilizer for an oil field has the advantages: the binding agent in the present invention has good weather resistance and acid and alkali resistance, is water-soluble, is easy to be applied on site, is colorless and tasteless, is non-toxic and harmless, and has stable nature; the invention has a better anti-swelling effect and better anti-swelling durability than other types of clay stabilizer used in the same block, and is especially suitable for low-permeability reservoirs.
Inventors:
ZHANG JIANHUA (CN)
GU JISHENG (CN)
GU JISHENG (CN)
Application Number:
PCT/CN2016/105662
Publication Date:
May 17, 2018
Filing Date:
November 14, 2016
Export Citation:
Assignee:
JIANGSU HUAAN SCIENT RESEARCH DEVICES CO LTD (CN)
International Classes:
C09K8/575; C09K8/60
Foreign References:
| CN104371687A | 2015-02-25 | |||
| CN105950130A | 2016-09-21 | |||
| CN104531127A | 2015-04-22 |
Attorney, Agent or Firm:
BEIJING YIGE INTELLECTUAL PROPERTY AGENT LTD (GENERAL PARTNERSHIP) (CN)
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