Applications of Weak Gel for In-Depth Profile Modification and Oil Displacement

2003 ◽  
Vol 42 (06) ◽  
Author(s):  
W. Wang ◽  
Y. Gu ◽  
Y. Liu
Keyword(s):  
Depth Profile ◽  
Profile Modification ◽  
Oil Displacement ◽  
Weak Gel

Mechanisms of Dopant Depth Profile Modification During Mass Spectrometric Analysis of Multilayer Structure

2015 ◽  
Vol 60 (6) ◽  
pp. 511-520 ◽  
Author(s):  
A.A. Efremov ◽  
◽  
V.G. Litovchenko ◽  
V.P. Melnik ◽  
O.S. Oberemok ◽  
...  
Keyword(s):  
Depth Profile ◽  
Multilayer Structure ◽  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis ◽  
Profile Modification

Effects of shear fracture on in-depth profile modification of weak gels

2007 ◽  
Vol 4 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Li Xianjie ◽  
Song Xinwang ◽  
Yue Xiang’an ◽  
Hou Jirui ◽  
Fang Lichun ◽  
...  
Keyword(s):  
Depth Profile ◽  
Shear Fracture ◽  
Profile Modification ◽  
Weak Gels

scholarly journals Study on sweep efficiency improvement by in-depth profile modification

2013 ◽  
Vol 78 (6) ◽  
pp. 445-454 ◽  
Author(s):  
Sumihiko Murata ◽  
Akihisa Ashida ◽  
Satoru Takahashi ◽  
Hiroshi Okabe
Keyword(s):  
Depth Profile ◽  
Efficiency Improvement ◽  
Sweep Efficiency ◽  
Profile Modification

A Comparison of Polymer Flooding With In-Depth Profile Modification

2012 ◽  
Vol 51 (05) ◽  
pp. 393-402 ◽  
Author(s):  
Randall Seright ◽  
Guoyin Zhang ◽  
Olatokunbo Akanni ◽  
Dongmei Wang
Keyword(s):  
Depth Profile ◽  
Polymer Flooding ◽  
Profile Modification

Research and Application of Deep Profile Control & Oil Displacement by Polymer Gel - Surfactant in High Salinity Oilfield

2013 ◽  
Vol 318 ◽  
pp. 491-495
Author(s):  
Yue Luo ◽  
Ding Wang ◽  
Lei Bai ◽  
Ke Jian Zha
Keyword(s):  
High Salinity ◽  
Liquid Water Content ◽  
Polymer Gel ◽  
Oil Displacement ◽  
Profile Control ◽  
Displacement Experiments ◽  
Injection Water ◽  
Weak Gel ◽  
Surfactant Composition ◽  
Deep Profile

A polymer gel-surfactant composition profile control technology has been developed, basing on the high salinity, especially high levels of Ca2+, Mg2+ in the injection water of the Hongshanzui oilfield. The construction parameters of deep profile control & oil displacement have been studied by performing core displacement experiments. The results show that the ratio of polymer gel slug and active agents slug is 1:0.3, the best ratio of strong polymer gel, medium polymer gel and weak polymer gel slug is 4:3:3. The way of combination is stronger gel slug + surfactant slug + in strong gel slug + weak gel slug + surfactant slug + strong gel sealing slug. The application effect of this technology in Hongshanzui oilfield is remarkable, the 12 tune flooding group daily oil production rose from 85t to 130t and the liquid water content decreased from 75% to 67%.

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