发明名称 |
SYNERGISTIC ORGANOPHILIC CLAY MIXTURE AS AN ADDITIVE TO OIL-BASED DRILLING FLUIDS |
摘要 |
An organophilic clay mixture having a first organophilic clay that is modified attapulgite clay and/or modified sepiolite clay, together with an organophilic modified bentonite clay, may be used as a rheological additive to improve the ultra-low shear rate viscosity of oil-based or synthetic oil-based drilling fluids (O/SBMs) and to increase the carrying capacity of the oil mud, while reducing the high shear rate readings. The clays are modified by treating them with quaternary amines and/or quaternary ammonium salts. The organophilic clay mixture significantly yields stable gels that are non-progressive compared to each individual organophilic clay used separately. |
申请公布号 |
US2016186034(A1) |
申请公布日期 |
2016.06.30 |
申请号 |
US201514911156 |
申请日期 |
2015.03.10 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
MAINYE WILSON;TEUTSCH MICHAEL BRIAN |
分类号 |
C09K8/32;C09K8/03 |
主分类号 |
C09K8/32 |
代理机构 |
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代理人 |
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主权项 |
1. An organophilic clay mixture comprising:
a first organophilic clay selected from the group consisting of modified attapulgite clay, modified sepiolite clay and combinations thereof, and an organophilic modified bentonite clay;where the clays have been modified by treating them with at least one compound selected from the group consisting of quaternary amines, quaternary ammonium salts, and combinations thereof. |
地址 |
Houston TX US |