Environmentally safe lubricated well fluid method of making a we

Details Environmentally safe lubricated well fluid method of making a we Environmentally safe lubricated well fluid method of making a we

1995-06-07

1997-08-19

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

507135, 507252, 507256, C09K 702

Patent

active

056588607

ABSTRACT:
A well fluid emusion having a water phase and an oil phase of a sulfurized alcohol and a naturally occuring fat, oil or derivatives thereof. Also disclosed is a method of lubricating drilling equipment used in conjunction with the drilling, completion or workover of a subterranean well. The method includes introducing the above emulsified well fluid into the well for circulation through and out of the well, and further includes contacting the surface of the drilling equipment with the emulsified well fluid to provide an interface between the equipment surface and the water phase. Suitable naturally occurring fats and oils may be obtained from the following animal oils and fats: butter, lard, tallow, grease, herring, menhaden, pilchard and sardine; and from the following vegetable oils and fats: castor, coconut, coffee, corn, cottonseed, jojoba, linseed, liticica, olive, palm, palm kernel, peanut, rapeseed, safflower, soya, sunflower, tall and tung.

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