Title:
FRACTURE CAVE-TYPE RESERVOIR OIL/WATER SELECTIVE SELF-EXPANDING RUBBER PLUGGING AGENT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/171812
Kind Code:
A1
Abstract:
A fracture cave-type reservoir oil/water selective self-expanding rubber plugging agent, a preparation method therefor, and an application thereof. The plugging agent comprises the following raw materials, in parts by weight: 100 parts of nitrile rubber, 50-110 parts of a water-absorbing resin, 5-15 parts of an oil-swelling resin, 15-30 parts of a reinforcing agent, 0.5-2 parts of a softening agent, 2-5 parts of an accelerant, 3-6 parts of zinc oxide, and 0.5-3.5 parts of a vulcanising agent. The plugging agent can be applied to high-temperature high-salt high-mineralisation fracture cave-type carbonate rock reservoir deep plugging.
Inventors:
LI ZAIFENG (CN)
LI LIANG (CN)
ZHANG XIAO (CN)
WANG JIANHAI (CN)
CHEN KANG (CN)
ZHOU XIAOYAN (CN)
REN BO (CN)
GUO NA (CN)
WU YAJUN (CN)
MA SHUFEN (CN)
LIU GUANGYAN (CN)
LI LIANG (CN)
ZHANG XIAO (CN)
WANG JIANHAI (CN)
CHEN KANG (CN)
ZHOU XIAOYAN (CN)
REN BO (CN)
GUO NA (CN)
WU YAJUN (CN)
MA SHUFEN (CN)
LIU GUANGYAN (CN)
Application Number:
PCT/CN2018/082860
Publication Date:
September 27, 2018
Filing Date:
April 12, 2018
Export Citation:
Assignee:
QINGDAO UNIV OF SCIENCE AND TECHNOLOGY (CN)
NORTHWEST BRANCH COMPANY TECH RESEARCH INSTITUTE OF PETROLEUM ENGINEERING SINOPEC (CN)
NORTHWEST BRANCH COMPANY TECH RESEARCH INSTITUTE OF PETROLEUM ENGINEERING SINOPEC (CN)
International Classes:
C09K8/42; C09K8/58; E21B33/12
Foreign References:
| CN105801930A | 2016-07-27 | |||
| CN104105838A | 2014-10-15 | |||
| CN102410022A | 2012-04-11 | |||
| CN102844401A | 2012-12-26 | |||
| CN103570985A | 2014-02-12 | |||
| US20090084550A1 | 2009-04-02 |
Attorney, Agent or Firm:
QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)
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