公开(公告)号：US5498596A

公开(公告)日：1996-03-12

申请号：US128186

申请日：1993-09-29

申请人： Henry Ashjian ,  Larry C. Peel ,  Thomas J. Sheerin ,  Robert S. Williamson

发明人： Henry Ashjian ,  Larry C. Peel ,  Thomas J. Sheerin ,  Robert S. Williamson

IPC分类号： E21B21/00 ,  C07C9/14 ,  C07C9/22 ,  C07C11/21 ,  C09K8/04 ,  C09K8/34 ,  C09K7/00 ,  C09K7/06

CPC分类号： C09K8/34 ,  Y10S507/905

摘要： Well fluids such as drilling muds, especially useful in offshore drilling, are formulated with a hydrocarbon oil blend of a low viscosity poly alpha-olefin (PAO) such as a low molecular weight oligomer of decene together with a C.sub.10 to C.sub.18 paraffinic hydrocarbon of petroleum origin and a C.sub.10 to C.sub.18 olefin such as dodecene-1 or tetradecene-1. The fluids exhibit good biodegradability and are non-toxic to marine organisms; they also meet viscosity and pour points specifications for formulation into oil based muds.

摘要翻译： 诸如钻井泥浆的井液，特别适用于海上钻井，是用低粘度聚α-烯烃（PAO）的烃油混合物配制的，例如低分子量低聚物的癸烯与C10至C18链烷烃的石油 起始物和C10至C18烯烃如十二烯-1或十四碳烯-1。 液体表现出良好的生物降解性，对海洋生物无毒; 它们也符合粘度和倾点规格，用于配制成油基泥浆。