Halliburton Company

Halliburton Energy Services, Inc.

Jerry D Childs

Lance Everett Brothers

D Chad Brenneis

Daniel L Bour

David L Sutton

Donald W Lindsey

Barry B Ekstrand

Slaton E Fry

Roosevelt Love

Susan M Turkett

John F Burkhalter

Fred L Sabins

Mary J Taylor

Freddie L Sabins

Patty L Totten

Jan Pieter Vijn

Joseph R Murphey

Wendell D Riley

Zacharias Xenakis

The present invention provides methods of cementing subterranean zones using cement compositions comprising calcium aluminate, fly ash, sodium polyphosphate and water.

Light weight high temperature well cement compositions and methods

The present invention provides light weight high temperature well cement compositions and methods. The compositions are basically comprised of calcium aluminate, ASTM class F fly ash and water.

Cement compositions and methods for high temperature wells containing carbon dioxide

The present invention provides light weight high temperature well cement compositions and methods. The compositions are basically comprised of calcium phosphate cement, water, a foaming agent, a foam stabilizer and a gas present in an amount sufficient to form a foam having a density in the range from about 11.5 to about 15 pounds per gallon.

The present invention provides methods of cementing the junction of multi-lateral wells whereby the set cement can withstand impacts and shocks without shattering. A cement slurry composition which sets into a high strength impact resistant solid mass is utilized comprised of a styrene/butadiene aqueous latex, a latex stabilizer, hydraulic cement and appropriate cementing additives.

Cementing multi-lateral wells

A composition for and method of performing primary cementing operations is disclosed. The method comprises the use of a water slurry of a thixotropic cementing composition which rapidly develops sufficient static gel strength to reduce if not eliminate annular gas migration.

Composition and method for cementing a well

Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from the group consisting of surfactants of the formula R--(OR').sub.n --OSO.sub.3.sup.- X.sup.+.

Foamed well cementing compositions and methods

Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from the group consisting of surfactants of the formula R--(OR').sub.n --OSO.sup.-.sub.3 X.sup.+.

Chloride-free set accelerated cement compositions and methods of using the compositions for cementing conduits in well bores are provided. The compositions are comprised of hydraulic cement, sufficient water to form a pumpable slurry and a chloride-free set accelerator selected from trihydroxybenzoic acid, disodium dihydroxybenzenedisulfonate or derivatives of such compounds.

Chloride-free set accelerated cement compositions and methods

Cementing compositions having improved fluid loss capabilities for use in oil, gas, water and other well cementing operations are disclosed. Such compositions are comprised of water, hydraulic cement and a fluid-loss additive comprising a graft polymer comprised of a backbone of lignin, lignite, derivatized cellulose and various synthetic polymers selected from the group consisting of polyvinyl alcohol, polyethylene oxide, polypropylene oxide and polyethyleneimine. The grafted pendant groups comprise at least one member selected from the group of homopolymers, copolymers and terpolymers of 2-acrylamido-2-methylpropanesulfonic acid, acrylonitrile, N,N-dimethylacrylamide, acrylic acid, N,N-dialkylaminoethylmethacrylate and their salts. The backbone comprises from about 5 to about 95 percent by weight of the graft polymer, and the pendant groups can comprise from about 5 to about 95 percent by weight of the graft polymer.

Method of reducing fluid loss in cement compositions which may contain

Set delayed cement compositions capable of being retained in pumpable fluid states for long time periods and then activated to set into hard masses and methods of using such compositions for cementing zones at remote locations are provided. The compositions are comprised of hydraulic cement, water, one or more hydratable gel forming materials and one or more methylenephosphonic acid derivative set delaying agents.

Set delayed cement compositions and methods of using the same

Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength development after placement across the zone or zones are provided. The cement compositions are comprised of hydraulic cement, sufficient water to form a pumpable slurry, one or more set retarders and a delayed retarder neutralizer comprised of one or more titanium chelates. Methods of cementing utilizing the compositions are also provided.

Set retarded cement compositions and well cementing methods

A thixotropic cement composition comprising water, hydraulic cement, a titanium chelate and a crosslinkable agent and methods of using same to combat migration of formation fluids in oil, gas and water wells are provided.

Method of using thixotropic cements for combating gas migration problems

Thixotropic cement composition comprising water, hydraulic cement, titanium chelates, and crosslinkable agents and methods of using same for sealing or cementing subterranean zones penetrated by a borehole are provided.

Growing community of inventors

Duncan, OK, United States of America

Jerry D Childs