西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (1): 147-150.

• 油气化学工程与化工 • Previous Articles     Next Articles

PERFORMANCE EVALUATION AND USAGE OF A NEW SUPRAMOLECULE WITH WATER AND SAND PREVENTION

ZHANG Bo1，2   

  1. 1.School of Petroleum Engineering，China University of Petroleum，Dongying Shandong 257061，China；2.Research Institute of Petroleum Engineering，SINOPEC，Chaoyang Beijing 100101，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-02-20 Published:2011-02-20

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Abstract: Supramolecular solution is made by PVP and PLAPEG2000 (mLA/mPEG=10/1) .The mechanism and properties of water and sand prevention are studied and fieldtest has been finished subsequently.The results are listed as follows:Membranes on the hydrophilic surface of rock are formed，the tensile strength is 3.5MPa，the ultimate elongation is 135%，the Shore hardness is 36，the swelling ratio in distilled water is less than 3%.It has better performance than the other materials used by oilfield now.Sand prevention period is more than 22 months，and water plugging efficiency is more than 30%.

Key words: PVP, PLA PEG 2000, supramolecule, water plugging, sand prevention 