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《Journal of Southwest Petroleum Institute》 2003-02
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EXPERIMENTAL STUDY ON LOW FLUORESCENT OR NON-FLUORESCENT INERT FILTRATION REDUCER DJ*.3

WANG Ping*.quan (Southwest Petroleum Institute,Nanchong Sichuan 637001, China).  
In order to meet needs of exploratory well, development well and environmental protection, an inert filtration reducer DJ*.3 which is low fluorescent or non*.fluorescence and low poisonous or non*.poisonous was successfully developed by using straight chain saturation alkane based on the equilibrium principle of dispersion and collection. The efficiency of DJ*.3 in fresh water, positive electricity colloid and high density salt water mud was synthetically evaluated and compared to sulfonated asphalt. Results show that DJ*.3 has many good properties such as filtration reducing, lubrication, anti*.collapsing, covering and plugging, temperature resistance (150 ℃), salt*.resistance (7%NaCl+7%KCOOH) and so on. DJ*.3 has good compatibility with AP*.P1 and KCOOH, and also has good filtration reducing and rheological property in high temperature(150 ℃) and high density(2.0 g/cm 3) mud system. It is a good filtration reducer in positive electricity colloid mud. It is a non*.fluorescence and low poisonous or non*.poisonous additive. Its whole efficacy is better than sulfonated asphalt such as HL*.Ⅱ, SAS. So DJ*.3 is a good succedaneum of sulfonated asphalt.
【Fund】: 中国石油天然气集团公司 (CNPC)“钻井工程实验室预研及运行费”(部18)
【CateGory Index】: TE254.3
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