Bj Services Company

Neil Johnston

Gino A DiLullo

Philip Rae

Dan Thomas Mueller

Philip James Rae

Phillip J Rae

Daniel J Daulton

Storable cement slurries utilize a carrageenan suspending agent to provide stable slurries under conditions of high pH and calcium ion content. These cement slurries may be utilized for, among other things, cementing applications involving oil and gas wells.

Storable liquid systems for use in cementing oil and gas wells

A drilling fluid additive for controlling solids comprising a carrageenan material, such as iota or kappa carrageenan. The drilling fluid additive may be used with other additives, such as a polyacrylate dispersant. Among other things, the drilling fluid additive may be used to drill deviated or horizontal wells, or wells having large diameter boreholes.

Mud suspension control system

In the method of the invention, a storable hydraulically-active cementitious slurry is made and used to cement within subterranean foundations for oil and gas wells. The slurry is made from hydraulically-active, cementitious material suitable for oil field purposes and can be stored until needed. During storage, the slurry remains liquid. The slurry is activated when needed for cementing. After pumping the activated slurry into the wellbore, the set cement has properties acceptable for well cementing.

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Aberdeenshire, United Kingdom

Neil Johnston