1
Philip D Nguyen, Ronald J Crook, Johnny A Barton, David L Brown: Methods and compositions for forming permeable cement sand screens in well bores. Halliburton Energy Service s, Craig W Roddy, C Clark Dougherty Jr, May 21, 2002: US06390195 (182 worldwide citation)

Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an ...


2
Philip D Nguyen, David L Brown, Steven F Wilson: Methods of preventing well fracture proppant flow-back. Halliburton Energy Services, Robert A Kent, C Clark Dougherty Jr, July 20, 1999: US05924488 (178 worldwide citation)

The present invention provides improved methods of placing proppant in fractures formed in a subterranean zone to prevent the subsequent flow-back of the proppant with fluids produced from the zone. The methods are basically comprised of the steps of depositing a mixture of hardenable resin composit ...


3
John I Stahl, David L Brown, David R Heeschen, Robert L Breeden, Richard E Bessom, Frank E Lambrcht, Mark S Stuglik: Cordless telephone with internal debit and credit memory. Motorola, Juliana Agon, August 11, 1992: US05138650 (176 worldwide citation)

A method of handling a charge authorization in a cordless phone (12) is provided wherein a memory (53) in the cordless phone (12) is credited (634) by a value representing a purchased amount prior to a usage of the cordless phone (12). The usage of the cordless phone is allowed (420) depending on th ...


4
Philip D Nguyen, Joe R Murphey, David L Brown: Well treating methods using particulate blends. Halliburton Company, Robert A Kent, Dennis D Brown, January 17, 1995: US05381864 (145 worldwide citation)

Fracturing, frac-pack, and gravel packing procedures are provided which utilize a treating composition comprising a carrier fluid and a particulate blend. The particulate blend consists essentially of a large particulate material and a small particulate material. The large particulate material consi ...


5
Jiten Chatterji, Roger S Cromwell, Baireddy R Reddy, Bobby J King, Philip D Nguyen, David L Brown: Methods and compositions for forming permeable cement sand screens in well bores. Halliburton Energy Sevices, Craig W Roddy, C Clark Dougherty Jr, March 20, 2001: US06202751 (140 worldwide citation)

Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an inter ...


6
Jiten Chatterji, Roger S Cromwell, Baireddy R Reddy, Bobby J King, Philip D Nguyen, David L Brown: Methods and compositions for forming permeable cement sand screens in well bores. Halliburton Energy Services, Craig W Roddy, April 2, 2002: US06364945 (140 worldwide citation)

Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an inter ...


7
Philip D Nguyen, Joe R Murphey, David L Brown: Well treating methods and devices using particulate blends. Halliburton Company, Robert A Kent, February 20, 1996: US05492178 (125 worldwide citation)

Fracturing, frac-pack, and gravel packing procedures are provided which utilize a treating composition comprising a carrier fluid and a particulate blend. The particulate blend consists essentially of a large particulate material and a small particulate material. The large particulate material consi ...


8
David L Brown, Paul D Marko, Jaime A Borras: Communication system and method using asynchronous and isochronous spectrum for voice and data. Motorola, John G Rauch, Brian M Mancini, Michael C Soldner, January 4, 2000: US06011784 (119 worldwide citation)

In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically allocated for co ...


9
David L Brown, Stelios Patsiokas: Registration and automatic call redirecting for cordless telephone systems. Motorola, M Mansour Ghomeshi, Michael J Buchenhorner, June 22, 1993: US05222123 (104 worldwide citation)

A method for redirecting calls to a cordless telephone wherein the user of the cordless telephone registers a location code at a call redirecting module. The location code informs the call redirecting module to redirect calls, that are directed to a first telephone unit, to a base station which is p ...


10
Philip D Nguyen, Jim D Weaver, David L Brown: Control of particulate flowback in subterranean wells. Halliburton Company, Robert A Kent, March 26, 1996: US05501274 (96 worldwide citation)

The addition of a thermoplastic material in intimate mixture with particulates for fracturing, gravel packing or other formation treatments decreases or substantially eliminates the flowback of particulates whether proppants or formation fines while stabilizing the particulate within the formation. ...