发明名称 |
ULTRA HIGH VISCOSITY PILL AND METHODS FOR USE WITH AN OIL-BASED DRILLING SYSTEM |
摘要 |
A fluid pressure transmission pill (FPTP) having an ultra-high viscosity for use in association with hydrocarbon drilling and exploration operations, particularly, managed pressure drilling (MPD) operations, is described. The ultra-high viscosity pill is a weighted pill composition that includes a hydrocarbon fluid, a thixotropic viscosifying agent, one or more activators, an emulsifier/wetting agent, a fluid loss control additive, and a weighting material. In accordance with selected aspects of the described pill, the ratio of the amount of the thixotropic viscosifying agent to the activator is a ratio of about 7 : 1, and the weighting material is a barium-containing solid-phase material. Also described are methods of use of such FPTP products in subterranean operations, such as well killing operations during managed pressure drilling. |
申请公布号 |
WO2011006076(A1) |
申请公布日期 |
2011.01.13 |
申请号 |
WO2010US41542 |
申请日期 |
2010.07.09 |
申请人 |
TEXAS UNITED CHEMICAL COMPANY, LLC;DOBSON, JR., JAMES W.;TRESCO, KIMBERLY O.;GEERDES, BENJAMIN K. |
发明人 |
DOBSON, JR., JAMES W.;TRESCO, KIMBERLY O.;GEERDES, BENJAMIN K. |
分类号 |
C09K8/14;C09K8/32 |
主分类号 |
C09K8/14 |
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