Baker Hughes, a Ge Compnay, LLC

Shannon E Bryant

Thomas Singh Sodhi

Sumit Bhaduri

Terry D Monroe

Matthew Grady Kellum

Shailesh Shashank Dighe

Antonio Bottiglieri

Gregory D Dean

A method of cementing a wellbore penetrating a subterranean formation, the method comprising: injecting into the wellbore an oil-based fluid; injecting into the wellbore a cement spacer fluid comprising an aqueous carrier, an oil swellable elastomer, and a viscosifier; contacting the oil-based fluid with the cement spacer fluid to swell the oil swellable elastomer in the cement spacer fluid; injecting a cement slurry into the wellbore; and allowing the cement slurry to set.

Methods of cementing a wellbore with the use of an oil swellable elastomer

A method of cementing a wellbore penetrating a subterranean formation comprises: injecting into the wellbore a cement spacer fluid comprising a carrier fluid, a quaternary surfactant, a viscosifier, and a proppant; injecting a cement slurry into the wellbore; and allowing the cement slurry to set.

Cement spacer fluid comprising quaternary surfactant, viscosifier, and proppant

A method of cementing a wellbore penetrating a subterranean formation comprises blending a base cement slurry with one or more liquid additives to provide a cementing composition, the base cement slurry comprising a liquid carrier, a class G cement or a blend of class G and class C cements as defined by the American Petroleum Institute (API) Specification 10A standards (R2015), and silica fume, or fumed silica, or a combination of silica fume and fumed silica, the base cement slurry having a density of about 14 to about 16 ppg; and injecting the cementing composition into the wellbore. The single base cement slurry can be used globally to make cementing compositions having wide ranges of density and temperature stability.

Single blended cement system for use at wide ranges of density and temperatures

A downhole treatment composition comprises a rare earth-containing compound comprising one or more of the following: scandium; yttrium; lanthanum; cerium; praseodymium; neodymium; promethium; samarium; lutetium; europium; gadolinium; terbium; dysprosium; holmium; erbium; thulium; or ytterbium, wherein the downhole treatment composition is a cement slurry, a drilling fluid, or a spacer fluid. Also disclosed are methods of cementing a wellbore, methods of displacing a first fluid, and methods of drilling a wellbore in a subterranean formation using the cement slurry, the spacer fluid, or the drilling fluid.

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Tomball, TX, United States of America

Shannon E Bryant