DRILLING FLUID
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专利名称：DRILLING FLUID
发明人：REID, Paul, Ian,CRASTER, Bernadette,
Teresa,CRAWSHAW, John, Peter,BALSON,
Terence, George
申请号：GB1996001989
申请日：19960814
公开号：WO97/007183P1
公开日：
19970227
专利内容由知识产权出版社提供
摘要：A water-based drilling fluid (WBM) comprises as additive a reaction product of a polyhydroxyalkane and alkylene oxide. The polyhydroxyalkane is desirably based on a monosaccharide, and is preferably sorbitol. The alkylene oxide may comprise ethylene oxide (EO), propylene oxide (PO) and/or butylene oxide (BO). Good results have been obtained with additives including Sorbitol + 18EO, Sorbitol + 9PO, Sorbitol + 4EO + 6BO, Sorbitol + 6EO + 6BO, or Sorbitol + 6BO. Drilling fluids in accordance with the invention have been found in laboratory tests to exhibit improved shale inhibition properties as compared with known polyol containing WBM, particularly in the absence of added potassium ions. This is environmentally advantageous.
申请人：REID, Paul, Ian,CRASTER, Bernadette, Teresa,CRAWSHAW, John,
Peter,BALSON, Terence, George
地址：Rue de Stalle 140 B-1180 Brussels BE,2030 Dow Center Midland, MI 48674 US,24th floor Monenco Place 801 6th Avenue, S.W. Calgary, Alberta T2P 3W2 CA,50, avenue Jean-Jaurès F-92541 Montrouge FR,35 Gainsborough Avenue Eaton Ford St. Neots Huntingdon Cambridge PE19 3RJ GB,30 Swaffham Road Reach Cambridge CB5 0HZ GB,16
Mill Street Gamlingay Sandy Bedfordshire SG19 3JW GB,Buenishofer Strasse 182 CH-8706 Feldmeilen CH
国籍：BE,US,CA,FR,GB,GB,GB,CH
代理机构：AKRAM, K., Mirza
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