Demin Wang, Chinese petroleum expert (Tangshan, Hebei Province 09 February 1937 –
From Swiss mother
PATENTS (about 40) incomplete list
With Y. Wang, R.J. Zhu, L. Ren, R. Zhong & H.Y. Wang. Crown-shaped separation device for separating oil and water in well. 20140000872 (2014)
With Y. Wang, J. Wan, S.M. Zhang, R.J. Zhu & L. Li. Corrugated settling cup and a multi-cup uniform flux gas anchor. US08453726 (2013) & US20110209866-A1 (2011)
With C. Liu, X.M. Song & S. Yuan. Betaine surfactants and preparation methods and uses thereof. W020121222667 (2011)
With Y. Wang, R.J. Zhu, R. Zhong & H.Y. Wang. A downhole crown-shaped separating device for separating oil and water. CA2828993A1 (2011)
With Z. Peng, H. Wang, Y. Wang, R. Zhong & R. Zhu. Multilayer uniform flow-type coalescence oil-water separator and separation method. CN201010110839 (2010)
With Y. Wang, Y. Chu, J. Zhu & Y. Liang. Method for lowing energy-consumption and increasing output by changing elasticity modulus of pumping rod and special apparatus. CN200710001138 (2007)
With Y. Wang, Y. Chu, J. Zhu & M. Jiang. Method of raising motor efficiency im pumping unit and energy balance device therefor. CN200710000566 (2007)
With Y. Wang, L. Ren, R. Zhu & Z. Han. Method for realizing high-water containing same-well injection-production by multi-cup equi-flow type down-hole oil-water separator. CN2006101170706
Foam drive method. US06439308 (2002) or WO1999051854A1 (1998)
With S. Gao & J. Cheng. Three-component composite displacement system formed from alkali, active agent and polymer and its application in tertiary oil recovery. CN99106075 (2000)
Petroleum carboxylate surfactant, its preparation method and application in tertiary oil recovery. CN99106076 (2000)
Alkyl benzene sulfonate surfactant, its preparation method and application in tertiary oil recovery. CN9910677 (2000)
With X. Han & H. Lu. Screw pump clearance oil producing ground driving device. CN97226624 (1999)
With X. Han & H. Lu. Vehicular plunge pump batch-type water filling installation. CN97226625 (1999)
With X. Han & H. Lu. Pumping unit for tubingless screw pump. CN97229924 (1999)
With X. Han & H. Lu. Layered water filler for screw pump. CN97211746 (1999)
HONOURS
Life Member, International Society of Petroleum Engineers
LINKS
http://patent.ipexl.com/inventor/wang_demin_1.html