Stephen Paul Graham

US Patent:

20090288833, Nov 26, 2009

Filed:

May 20, 2008

Appl. No.:

12/123957

Inventors:

Stephen A. GRAHAM - Houston TX, US
Philip W. WOODARD - Katy TX, US
Robert F. SHELLEY - Katy TX, US
Jim B. SURJAATMADJA - Duncan OK, US

Assignee:

Halliburton Energy Services, Inc. - Carrollton TX

International Classification:

E21B 43/25

US Classification:

166306, 175 78, 175 61

Abstract:

Systems and methods for multi-lateral wellbore construction and stimulation from cased parent wellbores. Methods and apparatus are provided to facilitate the creation of casing exit openings in the casing of parent wellbores. Methods and systems are provided for azimuthally and longitudinally aligning drilling assemblies through openings in a parent wellbore casing are provided to allow for drilling multiple lateral wellbores extending outwardly from a parent wellbore. A method of stimulating one or more subterranean zones intersected by multiple lateral wellbores extending outwardly from one or more patent wellbores includes the steps of: simultaneously injecting a stimulation fluid into the lateral wellbores; and stimulating the zones intersected by the lateral wellbores in response to the stimulation fluid injecting step.

US Patent:

47147288, Dec 22, 1987

Filed:

Jul 18, 1986

Appl. No.:

6/887846

Inventors:

Stephen L. Graham - Houston TX
David O. Plunkett - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C08F 216
C08F 800
C08F 830

US Classification:

524272

Abstract:

Aqueous dispersions useful in adhesive and coating applications, and a method of preparing the same. The dispersion contains (a) an ethylene interpolymer having an acid number of at least 117, a melt flow of at least 50, and comprising from 15 to 24 percent by weight of the interpolymer of interpolymerized ethylenically unsaturated carboxylic acid, such as acrylic or methacrylic acid, (b) from about 5 to about 2,000 parts by weight per 100 parts of the interpolymer of a rosin tackifier having an acid number of at least about 76 and being compatible and codispersible with the interpolymer, (c) water in an amount sufficient to provide a solids content of the dispersion of from about 10 to about 60 percent, and (d) water soluble alkali in an amount effective to neutralize from 20 to 130 percent of the acid groups in the interpolymer and the tackifier, to disperse at least 99 percent by weight of the interpolymer and the tackifier, and to provide a viscosity of the dispersion which is less than about 1,500 Pa-s. The dispersion is prepared by heating and agitating a mixture of the ingredients sufficiently to disperse at least about 99 weight percent of the interpolymer and the tackifier.