Fluide de forage à base d'huile d'hydrocarbures synthétiques

Bohrflüssigkeit aus synthetischen Kohlenstoffen auf Öl-Basis

Oil based synthetic hydrocarbon drilling fluid

Abstract

The present invention relates to an improved continuous phase for an oil based drilling fluid and specifically a synthetic hydrocarbon continuous phase which is non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocarbons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C 2 to C 14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. In the drilling fluid compositions, suitable emulsifiers, wetting agents, viscosifiers, weight materials and fluid loss additives are utilized in conjunction with water and/or a brine phase for the desired rheological properties.

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Patent Citations (4)

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    EP-0325466-A2July 26, 1989Coastal Mud Inc.The use of polyalphaolefin in downhole drilling
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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    CN-103224771-AJuly 31, 2013中国石油化工股份有限公司, 中国石化集团胜利石油管理局钻井工程技术公司High temperature-resistance and high density synthetic base drilling fluid
    CN-103224771-BSeptember 28, 2016中国石油化工股份有限公司, 中国石化集团胜利石油管理局钻井工程技术公司一种抗高温高密度合成基钻井液
    WO-2012054369-A2April 26, 2012Shell Internationale Research Maatschappij B.V., Shell Oil CompanyFluide de forage
    WO-2012054369-A3June 28, 2012Shell Internationale Research Maatschappij B.V., Shell Oil CompanyA drilling fluid