1
John B Weirich, Ronald G Bland, William W Smith Jr, Volker Krueger, John W Harrell, Hatem N Nasr, Valeri Papanyan: Drilling systems with sensors for determining properties of drilling fluid downhole. Baker Hughes Incorporated, Madan Mossman & Sriram P C, January 23, 2001: US06176323 (272 worldwide citation)

The present invention provides a drilling system for drilling oilfield boreholes or wellbores utilizing a drill string having a drilling assembly conveyed downhole by a tubing (usually a drill pipe or coiled tubing). The drilling assembly includes a bottom hole assembly (BHA) and a drill bit. The bo ...


2
Calvin Joseph Stowe II, Ronald G Bland, Dennis K Clapper, Tao Xiang, Saddock Benaissa: Water-based drilling fluids using latex additives. Baker Hughes Incorporated, Madan Mossman & Sriram P C, March 9, 2004: US06703351 (35 worldwide citation)

A water-based drilling fluid having a polymer latex capable of providing a deformable latex film on at least a portion of a subterranean formation has been discovered to provide reduced drilling fluid pressure invasion when used to drill in shale formations for hydrocarbon recovery operations. A pre ...


3
Ronald G Bland, Lirio Quintero: Pumpable multiple phase compositions for controlled release applications downhole. Baker Hughes Incorporated, Madan Mossman & Sriram P C, October 15, 2002: US06464009 (21 worldwide citation)

Pumpable multiple phase compositions for carrying agents and components downhole and controllably releasing them by breaking the suspensions are described. The multiple phase composition may have an external or third phase, which in turn has a first pumpable emulsion internally. The first pumpable e ...


4
Ronald G Bland, Dennis K Clapper: Non-hydrocarbon invert emulsions for use in well drilling operations. Baker Hughes Incorporated, Charles D Gunter Jr, October 15, 1991: US05057234 (18 worldwide citation)

Brine-in-glycol emulsions are shown for use as well working fluids. The fluids have a glycol external phase and a brine internal phase. The separate phases are emulsified to create an emulsion and weighted with traditional weighting agents. The external phase is soluble or dispersible in sea water w ...


5
Ronald G Bland: Drilling fluids comprising biodegradable heteropolyglycols. Baker Hughes Incorporated, Paula D Morris & Associates P C, April 25, 2000: US06054416 (17 worldwide citation)

A fluid selected form the group consisting of a drilling, a drill-in, and a completion fluid, said fluid comprising a substantially linear heteropolyglycol in an amount effective to perform a function selected from the group consisting of polymer stabilization, shale stabilization, and a combination ...


6
Ronald G Bland, Dennis K Clapper: Hydrocarbon invert emulsions for use in well drilling operations. Baker Hughes Incorporated, Charles D Gunter Jr, August 25, 1992: US05141920 (16 worldwide citation)

Brine-in-glycol emulsions are shown for use as well working fluids. The fluids have a glycol external phase and a brine internal phase. The separate phases are emulsified to create an emulsion and weighted with traditional weighting agents. The external phase is soluble or dispersible in sea water w ...


7
Ronald G Bland, Lirio Quintero: Pumpable multiple phase compositions for controlled release applications downhole. Baker Hughes Incorporated, Madan Mossman & Sriram P C, September 4, 2001: US06284714 (16 worldwide citation)

Pumpable multiple phase compositions for carrying agents and components downhole and controllably releasing them by breaking the suspensions are described. The multiple phase composition may have an external or third phase, which in turn has a first pumpable emulsion internally. The first pumpable e ...


8
Jim J Sheu, Ronald G Bland: Drilling fluid with stabilized browning reaction anionic carbohydrate. Baker Hughes Incorporated, Rosenblatt & Associates, May 5, 1992: US05110484 (14 worldwide citation)

A fluid is provided for the drilling, workover or completion of a subterranean well comprising an aqueous base, the browning reaction product of a carbohydrate, and a cation. Inversion of non-reducing sugars is effected on selected carbohydrates, with the inversion also catalyzing the browning react ...


9
William S Halliday, Dennis K Clapper, Mark R Smalling, Ronald G Bland: Blends of glycol derivatives as gas hydrate inhibitors in water base drilling, drill-in, and completion fluids. Baker Hughes Incorporated, Paula D Morris & Associates P C, December 26, 2000: US06165945 (10 worldwide citation)

A drilling, drill-in, or completion fluid comprising water as a continuous phase, said continuous phase comprising a gas hydrate inhibiting amount of a blend comprising an ethylene glycol derivative and a propylene glycol derivative. The propylene glycol derivative is present in an amount effective ...


10
Jim J Sheu, Ronald G Bland: Drilling fluid with browning reaction anionic carbohydrate. Baker Hughes Incorporated, Rosenblatt & Assoc, April 21, 1992: US05106517 (9 worldwide citation)

A fluid is provided for the drilling, workover or completion of a subterranean well comprising an aqueous base, the browning reaction product of a carbohydrate, and a cation. Inversion of non-reducing sugars is effected on selected carbohydrates, with the invention also catalyzing the browning react ...