申请人:Sun Drilling Products Corporation
公开号:US04719021A1
公开(公告)日:1988-01-12
Shale-stabilizing drilling fluids for use in connection with subterranean well drilling operations. The drilling fluids contain polyvalent metal/guanidine complexes, especially aluminum/guanidine complexes, and preferably contain guanidinium ion and aluminate ion accompanied by (a) cationic starches and (b) a glycol selected from the group consisting of polybutylene glycol, polyethylene glycol, polypropylene glycol and mixtures thereof.
页岩稳定钻井液用于与地下井钻探作业有关。 钻井液包含多价金属/胍配合物,特别是铝/胍配合物,并且最好包含胍阳离子和铝酸盐离子,伴随着(a)阳离子淀粉和(b)从聚丁二醇,聚乙二醇,聚丙烯醇和其混合物组成的一种环氧乙烷。