发明名称 |
CONTROLLED VARIABLE DENSITY FLUID FOR WELLBORE OPERATIONS |
摘要 |
<p>Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.</p> |
申请公布号 |
WO2006012164(A1) |
申请公布日期 |
2006.02.02 |
申请号 |
WO2005US22145 |
申请日期 |
2005.06.22 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
FINCHER, ROGER;WATKINS, LARRY |
分类号 |
C09K8/03;C09K8/50;C09K8/516;E21B21/00;E21B33/13;E21B43/00;(IPC1-7):C09K7/00;E21B43/12;E21B33/138 |
主分类号 |
C09K8/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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