Other

Coastal Mud, Incorporated

Michael B Faulk

David O Trahan

The composition of matter and application thereof in the present invention relates to the application of a synthetic hydrocarbon compound, a polyalphaolefin liquid, blended in various concentrations with chemical oil and water emulsifiers, thinners and oil and water surface tension reducers, the concentration of polyalphaolefin liquid to that of the remaining portion of the blend being no less than 5%; blending the polyalphaolefin liquid and the emulsifiers in a blending tank containing water base drilling mud; circulating the blend of polyalphaolefin liquid and emulsifier with the water base drilling mud down hole, so that the blend of polyalphaolefin liquid emulsifier and water base drilling mud lubricates the drill string or reduces the differential pressure between the wall of the borehole and the drill string so that the drill string is free to rotate and drilling may be undertaken with less drag or torque. In another application, the polyalphaolefin blended with the emulsifier serves as a spotting fluid in order to unstick drill pipe that has become stuck.

Use of polyalphalolefin in downhole drilling

Composition of matter in the present invention relates to the application of a synthetic hydrocarbon compound, such as a polyalphalolefin, which may be combined with emulsifiers and thinners (functional additives), at a ratio of approximately 9:1, to serve as a downhole lubricant which is non-toxic and presents no destruction to marine life. In addition, the polyalphalolefin may be used at a higher ratio of the polyalphalolefin to functional additives, to function as a spotting fluid for the removal of lodged tools downhole, exhibiting the same non-toxic qualities as when it is utilized as a lubricant.

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Kaplan, LA, United States of America

Michael B Faulk