Title:
POLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/078495
Kind Code:
A1
Abstract:
The present invention relates to the technical field of oil field development. Disclosed is a polymer. The polymer contains a sulfonate group, a benzene ring, and an unsaturated double bond at the same time; the molar ratio of the sulfonate group, the benzene ring, and the unsaturated double bond is 3-8:5-20:10-120; and the number average molecular weight of the polymer is 1000-15000 g/mol. The polymer, as a viscosity reducer, has extremely high resistance to high concentrations of calcium and magnesium ions, a good viscosity reduction effect on super heavy oil, and good natural sedimentation and dehydration properties, is resistant to viscosity rebound, has good water solubility, is green and low-carbon, has a simple matching injection process, and is suitable for practical use in oil fields.
Inventors:
WANG GUANGFU (CN)
WANG HAIBO (CN)
LU XI (CN)
FANG JICHAO (CN)
WANG LIANSHENG (CN)
HU YONG (CN)
LI MENGTAO (CN)
TANG PING (CN)
WANG HAIBO (CN)
LU XI (CN)
FANG JICHAO (CN)
WANG LIANSHENG (CN)
HU YONG (CN)
LI MENGTAO (CN)
TANG PING (CN)
Application Number:
PCT/CN2023/123781
Publication Date:
April 18, 2024
Filing Date:
October 10, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
PETROLEUM EXPLORATION & PRODUCTION RES INSTITUTE (CN)
PETROLEUM EXPLORATION & PRODUCTION RES INSTITUTE (CN)
International Classes:
C08F236/04; C08F220/58; C09K8/584; C09K8/588
Foreign References:
| CN104628934A | 2015-05-20 | |||
| CN101759825A | 2010-06-30 | |||
| CN113754838A | 2021-12-07 | |||
| CN114591468A | 2022-06-07 | |||
| JP2004285296A | 2004-10-14 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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