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公开(公告)号：US20030176293A1
公开(公告)日：2003-09-18
申请号：US10342800
申请日：2003-01-15
Applicant: Grain Processing Corporation
Inventor： Kevin H. Schilling , Michael Riley , Roger E. McPherson
IPC: C09K007/00
Abstract: Disclosed are drilling fluids that include carboxyalkylated corn hulls in an amount effective to inhibit fluid loss from a wellbore formation. The carboxyalkylated corn hulls are heat stable and surprisingly effective at inhibiting fluid loss. Also disclosed are a drilling apparatus and a drilling process.
Abstract translation: 公开的是包括有效抑制来自井眼地层的流体损失的量的羧烷基化玉米壳的钻井液。 羧烷基化的玉米壳是热稳定的，并且令人惊讶地有效地抑制流体损失。 还公开了钻井设备和钻井过程。
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公开(公告)号：US20030199396A1
公开(公告)日：2003-10-23
申请号：US10336540
申请日：2003-01-03
Applicant: GRAIN PROCESSING CORPORATION
Inventor： Kevin H. Schilling , Michael Riley , David F. Cali
IPC: C09K007/00
Abstract: Disclosed are drilling fluids suitable for use in connection with oil well drilling. The drilling fluids of the invention include in one embodiment a liquid base, an alkyl glucoside, such as methyl glucoside, and a borehole stability agent that includes a maltodextrin, a carboxyalkyl starch, a hemicellulose-containing material, or a mixture of the foregoing. In another embodiment, the drilling fluid includes a liquid base and desugared molasses solids, preferably in combination with an alkyl glucoside and more preferably in further combination with one of the aforementioned borehole stability agents. The drilling fluids of the invention surprisingly have a reduced tendency to swell shale as compared with known drilling fluids. Also disclosed are a drilling apparatus and process. The drilling apparatus includes a drill string, which may be conventional, that is fluidically coupled to a source of drilling fluid, the source of drilling fluid including the drilling fluid of the invention. The process of the invention includes the step of circulating the drilling fluid of the invention through a drill string during borehole drilling.
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