发明名称 |
Controlled variable density fluid for wellbore operations |
摘要 |
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.
|
申请公布号 |
US8343894(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20090353587 |
申请日期 |
2009.01.14 |
申请人 |
BAKER HUGHES INCORPORATED;WATKINS LARRY A.;FINCHER ROGER W. |
发明人 |
WATKINS LARRY A.;FINCHER ROGER W. |
分类号 |
B01F17/00;C09K8/03;C09K8/50;C09K8/516;E21B21/00;E21B33/13;E21B43/00 |
主分类号 |
B01F17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|