Shui Lingling, Li Ganzuo, Shen Qiang, Ji Dongmei, Sun Zhiwei, Dai Guoliang. Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface[J]. Chinese Journal of Chemical Physics , 2004, 17(2): 201-205. doi: 10.1088/1674-0068/17/2/201-205
Citation: Shui Lingling, Li Ganzuo, Shen Qiang, Ji Dongmei, Sun Zhiwei, Dai Guoliang. Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface[J]. Chinese Journal of Chemical Physics , 2004, 17(2): 201-205. doi: 10.1088/1674-0068/17/2/201-205

Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface

doi: 10.1088/1674-0068/17/2/201-205
Funds:  Project supported by the National Microgravity Laboratory,Institution of Mechanics,Chinese Academy of Sciences.
  • Received Date: 2003-03-05
  • In order to research the flooding efficiency of flooding systems and wettability on the simulant rock surface,the orthogonal-test-design method was used to determine the optimal formula for the crude oil from the Chunliang zone of Shengli oil field by transient interfacial tension(IFT). The results indicate that two optimal formulas are naturally mixed carboxylate SDC-V(0.35%,0.36%),nonionic surfactant FBB(0.06%,0.07%),Alkaline NaHCO3 / Na2CO3 weight ratio of(0.8%,1.2%)and HPAM(0.05%,0.15%),and in the coreflood experiment,their oil recovery are(14.6%,16.7%)OOIP respectively. The contact angles have been determined for the two optimal formula systems and their components on the simulant rock surface,which points out the relationship between the flooding efficiency and contact angle is showed identification,that is,the more oil recovery the less contact angle. It will be useful to the application research of microgravity.
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Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface

doi: 10.1088/1674-0068/17/2/201-205
Funds:  Project supported by the National Microgravity Laboratory,Institution of Mechanics,Chinese Academy of Sciences.

Abstract: In order to research the flooding efficiency of flooding systems and wettability on the simulant rock surface,the orthogonal-test-design method was used to determine the optimal formula for the crude oil from the Chunliang zone of Shengli oil field by transient interfacial tension(IFT). The results indicate that two optimal formulas are naturally mixed carboxylate SDC-V(0.35%,0.36%),nonionic surfactant FBB(0.06%,0.07%),Alkaline NaHCO3 / Na2CO3 weight ratio of(0.8%,1.2%)and HPAM(0.05%,0.15%),and in the coreflood experiment,their oil recovery are(14.6%,16.7%)OOIP respectively. The contact angles have been determined for the two optimal formula systems and their components on the simulant rock surface,which points out the relationship between the flooding efficiency and contact angle is showed identification,that is,the more oil recovery the less contact angle. It will be useful to the application research of microgravity.

Shui Lingling, Li Ganzuo, Shen Qiang, Ji Dongmei, Sun Zhiwei, Dai Guoliang. Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface[J]. Chinese Journal of Chemical Physics , 2004, 17(2): 201-205. doi: 10.1088/1674-0068/17/2/201-205
Citation: Shui Lingling, Li Ganzuo, Shen Qiang, Ji Dongmei, Sun Zhiwei, Dai Guoliang. Flooding Efficiency of Flooding Systems and Wettability Study on the Simulant Rock Surface[J]. Chinese Journal of Chemical Physics , 2004, 17(2): 201-205. doi: 10.1088/1674-0068/17/2/201-205

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