Volume 32 Issue 2
Mar.  2015
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SHAN Jie, ZHANG Xiwen, YANG Chao, YIN Zequn, LU Jiao. Synthesis and Evaluation of a Highly Calcium Resistant and Strongly Inhibitive Modified Starch[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 19-22. doi: 10.3969/j.issn.1001-5620.2015.02.005
Citation: SHAN Jie, ZHANG Xiwen, YANG Chao, YIN Zequn, LU Jiao. Synthesis and Evaluation of a Highly Calcium Resistant and Strongly Inhibitive Modified Starch[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 19-22. doi: 10.3969/j.issn.1001-5620.2015.02.005
shu

Synthesis and Evaluation of a Highly Calcium Resistant and Strongly Inhibitive Modified Starch

doi: 10.3969/j.issn.1001-5620.2015.02.005

  • Liaoning Shihua University, No. 1 Dandong Lu Xiduan, Wanghua District, Fushun, Liaoning 113001, China

  • Received Date: 2015-01-29
  • Publish Date: 2015-03-31
    Abstract
  • A starch copolymer was developed through draft copolymerization of starch and newly prepared alkene monomer. In laboratory experiments, this starch copolymer (modified starch) showed good filtration control performance in fresh water base mud, saltwater base mud, saturated saltwater base mud, seawater base mud, compound saltwater base mud, and calcium chloride mud. It also showed good stability at high temperature (130℃) and good tolerance to salt and calcium contamination to saturation. Filter loss of a mud treated with this modified starch was decreasing with an increased salt and calcium contamination. Introduction of cationic groups into the molecules of the modified starch rendered it good inhibitive capacity.

     

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