Title:
THICKENED OIL ACTIVATING AGENT AND PREPARATION METHOD AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/024476
Kind Code:
A1
Abstract:
Disclosed are a thickened oil activating agent and a preparation method and the use thereof. The thickened oil activating agent is a polymer as shown in a structural formula such as formula (I), where x, y, z, m and n are respectively mass fractions of corresponding chain segments in the polymer, m is 0.75 to 0.85, y is 0.20 to 0.24, and x, z and n are all 0.001 to 0.01; and p is a natural number between 2 to 9. The activating polymer provided in the present invention has the effects of increasing aqueous phase viscosity and reducing the crude oil viscosity at the same time, and can be used as both a flooding agent and a viscosity reducer, thus achieving the aim of one substance acting as two agents. The activating polymer can increase the aqueous phase viscosity, has the function of displacement, can emulsify and disperse the crude oil, and increases the flowability of the mixed phase. Moreover, the dispersed crude oil continues to react with non-contacted crude oil. At the same time, the aqueous phase reacts not only with the mixed oil phase, but also with the new oil, one after another, thereby continually activating more crude oil. The activating polymer of the present invention has a low interfacial tension and a certain oil-washing ability.
Inventors:
ZHANG JIAN (CN)
CHEN WENJUAN (CN)
KANG XIAODONG (CN)
YANG GUANG (CN)
CUI YINGXIAN (CN)
WANG XUDONG (CN)
TANG ENGAO (CN)
CHEN WENJUAN (CN)
KANG XIAODONG (CN)
YANG GUANG (CN)
CUI YINGXIAN (CN)
WANG XUDONG (CN)
TANG ENGAO (CN)
Application Number:
PCT/CN2018/075360
Publication Date:
February 07, 2019
Filing Date:
February 06, 2018
Export Citation:
Assignee:
CHINA NAT OFFSHORE OIL CORP (CN)
CNOOC RES INST CO LTD (CN)
CNOOC RES INST CO LTD (CN)
International Classes:
C08F283/06; C08F216/36; C08F220/34; C08F220/36; C08F220/56; C09K8/588; C09K8/88; E21B43/22
Domestic Patent References:
| WO2011015520A1 | 2011-02-10 |
Foreign References:
| CN107446563A | 2017-12-08 | |||
| CN107383273A | 2017-11-24 | |||
| CN105001849A | 2015-10-28 | |||
| CN105646793A | 2016-06-08 |
Attorney, Agent or Firm:
JEEKAI & PARTNERS (CN)
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