Recent progress and evaluation of ASP flooding for EOR in Daqing oil field

2010 ◽  
Author(s):  
Gao Shutang ◽  
Gao Qiang
Keyword(s):  
Recent Progress ◽  
Oil Field ◽  
Asp Flooding ◽  
Daqing Oil Field

The Application of Surfactin Biosurfactant as Surfactant Coupler in ASP Flooding in Daqing Oil Field

2009 ◽  
Author(s):  
Dawei Wang ◽  
Yuguang Zhang ◽  
Yongjian Liu ◽  
Chunlei Hao ◽  
Menghua Guo
Keyword(s):  
Oil Field ◽  
Asp Flooding ◽  
Daqing Oil Field

Commercial test of ASP Flooding in Daqing Oil Field

2008 ◽  
Author(s):  
Jiecheng Cheng ◽  
Dianping Xu ◽  
Bai Wenguang
Keyword(s):  
Oil Field ◽  
Commercial Test ◽  
Asp Flooding ◽  
Daqing Oil Field

Comparison of Strong-Alkali and Weak-Alkali ASP-Flooding Field Tests in Daqing Oil Field

2018 ◽  
Vol 33 (02) ◽  
pp. 353-362 ◽  
Author(s):  
Hu Guo ◽  
Yiqiang Li ◽  
Fuyong Wang ◽  
Yuanyuan Gu
Keyword(s):  
Field Tests ◽  
Oil Field ◽  
Asp Flooding ◽  
Daqing Oil Field

An Alkaline Bio-Surfactant Polymer Flooding Pilots in Daqing Oil Field

1999 ◽  
Author(s):  
Wang Demin ◽  
Cheng Jiecheng ◽  
Li Qun ◽  
Li Lizhong ◽  
Zhao Changjiu
Keyword(s):  
Polymer Flooding ◽  
Oil Field ◽  
Daqing Oil Field

scholarly journals Analysis of the Energy Return on Investment (EROI) of the Huge Daqing Oil Field in China

2011 ◽  
Vol 3 (12) ◽  
pp. 2323-2338 ◽  
Author(s):  
Yan Hu ◽  
Lianyong Feng ◽  
Charles C.S. Hall ◽  
Dong Tian
Keyword(s):  
Return On Investment ◽  
Oil Field ◽  
Energy Return On Investment ◽  
Daqing Oil Field

The Mechanism of PCP Wells' Tubing and Rod Wear Issue in Polymer Flooding in Daqing Oil Field

2008 ◽  
Author(s):  
He Liu ◽  
Pei Xiaohan ◽  
Peng Baiqi ◽  
Hou Yu ◽  
Wang Yumei ◽  
...  
Keyword(s):  
Polymer Flooding ◽  
Oil Field ◽  
Daqing Oil Field

Review of Practical Experience by Polymer Flooding at Daqing

2009 ◽  
Vol 12 (03) ◽  
pp. 470-476 ◽  
Author(s):  
Dongmei Wang ◽  
Huanzhong Dong ◽  
Changsen Lv ◽  
Xiaofei Fu ◽  
Jun Nie
Keyword(s):  
Oil Production ◽  
Polymer Flooding ◽  
Oil Field ◽  
High Permeability ◽  
Sweep Efficiency ◽  
Molecular Weights ◽  
Well Spacing ◽  
Polymer Flood ◽  
Daqing Oil Field ◽  
Water Cut

Summary This paper describes successful practices applied during polymer flooding at Daqing that will be of considerable value to future chemical floods, both in China and elsewhere. On the basis of laboratory findings, new concepts have been developed that expand conventional ideas concerning favorable conditions for mobility improvement by polymer flooding. Particular advances integrate reservoir-engineering approaches and technology that is basic for successful application of polymer flooding. These include the following:Proper consideration must be given to the permeability contrast among the oil zones and to interwell continuity, involving the optimum combination of oil strata during flooding and well-pattern design, respectively;Higher polymer molecular weights, a broader range of polymer molecular weights, and higher polymer concentrations are desirable in the injected slugs;The entire polymer-flooding process should be characterized in five stages--with its dynamic behavior distinguished by water-cut changes; -Additional techniques should be considered, such as dynamic monitoring using well logging, well testing, and tracers; effective techniques are also needed for surface mixing, injection facilities, oil production, and produced-water treatment; andContinuous innovation must be a priority during polymer flooding. Introduction China's Daqing oil field entered its ultrahigh-water-cut period after 30 years of exploitation. Just before large-scale polymer-flooding application, the average water-cut was more than 90%. The Daqing oil-field is a large river-delta/lacustrine facies, multilayered with complex geologic conditions and heterogeneous sandstone in an inland basin. After 30 years of waterflooding, many channels and high-permeability streaks were identified in this oil field (Wang and Qian 2002). Laboratory research began in the 1960s, investigating the potential of enhanced-oil-recovery (EOR) processes in the Daqing oil field. After a single-injector polymer flood with a small well spacing of 75 m in 1972, polymer flooding was set on pilot test. During the late 1980s, a pilot project in central Daqing was expanded to a multiwell pattern with larger well spacing. Favorable results from these tests--along with extensive research and engineering from the mid-1980s through the 1990s--confirmed that polymer flooding was the preferred method to improve areal- and vertical-sweep efficiency at Daqing and to provide mobility control (Wang et al. 2002, Wang and Liu 2004). Consequently, the world's largest polymer flood was implemented at Daqing, beginning in 1996. By 2007, 22.3% of total production from the Daqing oil field was attributed to polymer flooding. Polymer flooding boosted the ultimate recovery for the field to more than 50% of original oil in place (OOIP)--10 to 12% OOIP more than from waterflooding. At the end of 2007, oil production from polymer flooding at the Daqing oil field was more than 10 million tons (73 million bbl) per year (sustained for 6 years). The focus of this paper is on polymer flooding, in which sweep efficiency is improved by reducing the water/oil mobility ratio in the reservoir. This paper is not concerned with the use of chemical gel treatments, which attempt to block water flow through fractures and high-permeability strata. Applications of chemical gel treatments in China have been covered elsewhere (Liu et al. 2006).

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