1
Joseph George Savins: Hydraulic fracturing technique. Mobil Oil Corporation, C A Huggett, Henry L Ehrlich, January 10, 1978: US04067389 (97 worldwide citation)

This specification discloses a technique of hydraulically fracturing a subterranean formation wherein there is used a fracturing fluid comprised of an aqueous solution of an interaction product of a polysaccharide and a galactomannan.


2
Mike Webre, Vernon Bouligny, Donald Mosing: Pipe gripping apparatus. Frank s Casing Crew & Rental Tools, Henry L Ehrlich, Matthews Joseph Shaddox & Mason P L L C, December 15, 1998: US05848647 (80 worldwide citation)

A pipe gripping apparatus for angularly adapting to misaligned pipe on one or more pipe strings, said apparatus comprising: a housing having internal, opposing, downwardly curved surfaces therein and forming a longitudinal opening for passing a portion of at least one tubing string therethrough; a p ...


3
William L Medlin: Hydraulic fracturing method for creating horizontal fractures. Mobil Oil Corporation, C A Huggett, Henry L Ehrlich, June 29, 1976: US03965982 (78 worldwide citation)

This specification discloses a method of creating a horizontally disposed fracture in a subterranean formation that is penetrated by a wellbore. Two packers are set in the wellbore against the formation to be fractured to define with the wellbore and intermediate the packers a fracture treatment zon ...


4
Samuel P Hawkins: Non-metallic centralizer for casing. Frank s International, Henry L Ehrlich, Matthews Joseph Shaddox & Mason P L L C, June 1, 1999: US05908072 (52 worldwide citation)

A non-metallic centralizer for casing having a tubular, plastic sleeve adapted to fit closely about a joint of casing, said sleeve having a plurality of blades extending substantially longitudinally along an outer surface of said sleeve. The non-metallic centralizer having strength characteristics c ...


5
John L Fitch: Well completion technique for sand control. Mobil Oil Corporation, C A Huggett, Henry L Ehrlich, October 5, 1976: US03983941 (41 worldwide citation)

This specification discloses a method of completing a cased well that penetrates a subterranean formation to control the production of sand from the formation. The well is provided with perforation tunnels that extend through the casing and communicate with the formation. Removable plugs are formed ...


6
Malcolm G Coone: Anti-rotational cementing apparatus. Davis Lynch, Henry L Ehrlich, Matthews Joseph Shaodox Mason, December 1, 1998: US05842517 (36 worldwide citation)

The apparatus of the present invention is a mechanism for use in cementing a casing string in a well bore comprising a float collar connectable to the casing string, a cement plug engagable to the float collar, and a wiper plug engagable to the cement plug, each element utilizing inclined plane J-sl ...


7
Vernon J Bouligny: Power tong gripping ring mechanism. Frank s Casing Crew and Rental Tools, Henry L Ehrlich, Matthews Joseph Shaddox & Mason P L L C, December 8, 1998: US05845549 (36 worldwide citation)

A multi-sectioned, bidirectional gripping ring for a closed-head power tong is disclosed of the inventive gripping ring have an open position in which a pipe may be placed within or removed from the gripping ring and a closed position in which the gripping ring completely encircles the pipe. The inv ...


8
Joseph U Messenger: Technique for controlling lost circulation employing improved soft plug. Mobil Oil Corporation, C A Huggett, Henry L Ehrlich, November 13, 1979: US04173999 (32 worldwide citation)

This specification discloses a method of controlling the loss of drilling fluid into a lost circulation zone of a subterranean earth formation penetrated by a well. A nonaqueous slurry of a hydratable material and an oleophilic clay is introduced into the well and mixed in the vicinity of the lost c ...


9
J S Hogan: Method and apparatus for cleaning a gas. Henry L Ehrlich, Winstead Sechrest & Minick, May 21, 2002: US06391100 (30 worldwide citation)

A system and method of cleansing a gas of undesired particulate, aromas, and gases of the type utilizing a liquid to wet a gas stream is provided. The gas scrubber of the present invention including: a container having a bottom wall and a top wall interconnected by a side wall and containing a liqui ...


10
J S Hogan: Method and apparatus for cleaning a gas. Henry L Ehrlich, Winstead Sechrest & Minick PC, November 26, 2002: US06485548 (27 worldwide citation)

A system and method of scrubbing gas utilizing a liquid to wet a gas stream is provided. The scrubber comprises a container containing a liquid; a tube having a tube inlet opened exterior of the container connected via a throat to a tube outlet allowing a gas to flow from exterior the container into ...