Research and Application of Floaters Produced from Water Treatment in Oilfield SZ36-1 as Profile Control Agent

Abstract:

Composition and structural characteristics of floaters were detected and forming reasons were analysed through modern reservoir engineering theory, equipment analysis and physical simulation.Experiments on flowing characteristics, fluid diversion effect and driving effect were carried out. The results show that floaters are formed by huge amounts of tiny bubble absorbing crude oil and suspended solids in floating progress which make their density lower than water. Disposed floaters have better adaptability and can block off high-permeability. Furthermore, profile control effect turns better as particle concentration and permeability ratio increases. However,floater particles have selectivity to permeability ratio. When permeability ratio is not less than 8, profile control agent may damage low-permeability layers and cause succeeding water passing through high-permeability layers. Therefore, only when floaters adapt well to permeability ratio can we get better profile control effect.

• Periodical: Advanced Materials Research (Volumes 724-725)
• Pages: 1171-1175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.724-725.1171
• Online since: August 2013
• Authors: Li Wei Niu, Xiang Guo Lu, Wei Li, Sheng Wang Yuan
• Keywords: Floater, Offshore Oilfield, Permeability Ratio, Profile Control Agent, Shunt Index

References

[1] Lin Zhao, Zhiwen Li, Yan Cheng. Oilfield Chemistry(2005).(In Chinese)

[2] Xu Li, Hongming Tang, Yigang Liu. Offshore Oil(2010). (In Chinese)

[3] Xuebin Hu, Weidong Deng, Wen Xiao. Oilfield Chemistry(2004). (In Chinese)

[4] Feng Luo, Baoyun Zhang, Xiangguo Lu. Oil Drilling & Production Technology(2008). (In Chinese)

[5] Guofu Chen, Jianbo Hu, Xiangguo Lu, etc. Oilfield Chemistry(2010). (In Chinese)

[6] Xiangguo Lu, Zhenhuan Gao, Wenhua Yan. Petroleum Geology & Oilfield Development in Daqing(1994). (In Chinese)

[7] Jintian Shi, Shijin Zhang, Jichen Jing. Jiangsu Chemistry(2003). (In Chinese)

[8] Xiaohu Guan, Jianhua Chen, Lidong Liao. Oil Field Equipment(2003). (In Chinese)

[9] Jinlong Tang, Xinyong Du, Zhiyong Hao, etc.Drilling & Production Technology(2004).(In Chinese)