公开(公告)号：WO2014093423A2

公开(公告)日：2014-06-19

申请号：PCT/US2013/074260

申请日：2013-12-11

Applicant: CLEARWATER INTERNATIONAL, LLC

Inventor： SANTRA, Ashok ,  SEYMOUR, Brian ,  PARTCH, Ilia Kim

CPC classification number: C09K8/48 ,  C04B28/02 ,  C04B2103/0062 ,  C09K8/035 ,  C09K8/40 ,  C09K8/424 ,  E21B33/14 ,  Y02W30/94 ,  C04B14/26 ,  C04B14/30 ,  C04B14/308 ,  C04B14/368 ,  C04B18/146 ,  C04B24/2676 ,  C04B2103/408 ,  C04B2103/46 ,  C04B2103/50

Abstract: A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a particulate weighted elastomeric composition system including at least one higher density weighting agent and at least one elastomer, where the higher density weighting agents have a density of at least 5.0 g/cm 3 and conventional weighting agents, to produce compositions having a desired high density, while retaining other fluid properties such as pumpability, gas tight sealing, low tendency to segregate, and reduced high temperature cement strength retrogression.

Abstract translation: 公开了用于地下井的钻井液，隔离液和胶结组合物及其制备方法，其中所述组合物包含颗粒状加重弹性体组合物体系，所述颗粒状加重弹性体组合物体系包含至少一种更高密度的增重剂 和至少一种弹性体，其中较高密度的增重剂具有至少5.0g / cm 3的密度和常规增重剂，以产生具有所需高密度的组合物，同时保持其它流体性质，例如 作为泵送性，气密性，低偏析倾向性，以及降低高温水泥强度退化。