发明名称 |
Light-weight proppant from heat-treated pumice |
摘要 |
A process for forming a strong, low-density proppant, which process includes heating pumice particulates, or shaped agglomerates thereof, so as to form heat-treated pumice particulates, or heat-treated, shaped pumice agglomerates, having an apparent density of 2.4 or less and a crush resistance of no more than 10% fines at 4000 psi. Proppants, and well treatment fluids comprising proppants, meeting these characteristics and processes for treating subterranean formations using fluids which include such proppants are also described. |
申请公布号 |
US8796188(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US200912619828 |
申请日期 |
2009.11.17 |
申请人 |
Baker Hughes Incorporated |
发明人 |
Pisklak Thomas J.;Stevens, Jr. Richard F.;Qu Qi;Morillo Elizabeth G. |
分类号 |
C09K8/528;C09K8/74;B29C67/00;B05D7/00;C09K8/80;C04B26/02;C04B20/10 |
主分类号 |
C09K8/528 |
代理机构 |
McGlinchey Stafford |
代理人 |
McGlinchey Stafford ;Patty, II R. Andrew |
主权项 |
1. A process for forming a proppant, the process comprising
heating an amount of pumice particulates coated with bentonite clay so as to (i) increase its density and maintain or shrink its size relative to the pre-heated pumice particulates and (ii) form an amount of heat-treated, pumice particulates having an apparent density of 2.4 or less, and a crush resistance of no more than 10% fines at 4000 psi; wherein the amount of bentonite clay is in the range of about 50 to 200 wt %, based on the weight of the shaped pumice agglomerates in dry form. |
地址 |
Houston TX US |