Whitfill
Don Whitfill, Houston, TX US
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20140262281 | Methods of Designing a Drilling Fluid Having Suspendable Loss Circulation Material - Methods including providing a wellbore in a subterranean formation having at least one pore opening; providing a proposed wellbore operation; providing a proposed treatment fluid; providing proposed FLCM particulates; calculating the suspendability of the proposed FLCM particulates in the proposed treatment fluid as determined by a yield gravity function based on properties of the proposed treatment fluid and properties of the proposed FLCM particulates or as determined by an experimental FLCM function; manipulating at least one of the properties of the proposed treatment fluid, the properties of the proposed FLCM particulates, or the proposed wellbore operation based on the yield gravity function or the experimental FLCM function so as to produce a FLCM-suspension treatment fluid; and introducing the FLCM-suspension treatment fluid into the wellbore in the subterranean formation so as to contact the at least one pore opening. | 09-18-2014 |
Donald Whitfill, Kingwood, TX US
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20090163388 | Variable Density Treatment Fluids - The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles. | 06-25-2009 |
20120196777 | Variable Pressure Weighting Material Particles - Variable pressure weighting material particles that include a hollow, elastically deformable particle which itself comprises a wall and an internal fluid at a pressure of 15 psi to about 100 psi. The variable pressure weighting material particles generally include a hollow, elastically deformable particle that compresses during introduction into a subterranean formation and returns to substantially the same shape when removed from the subterranean formation. | 08-02-2012 |
Donald Whitfill, Houston, TX US
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20140256602 | DRILLING FLUID THAT WHEN MIXED WITH A CEMENT COMPOSITION ENHANCES PHYSICAL PROPERTIES OF THE CEMENT COMPOSITION - According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes with three parts of a cement composition consisting of water and cement, the drilling fluid cement composition mixture develops a compressive strength of at least 1,200 psi. According to another embodiment, a method of using the drilling fluid comprises the steps of: introducing the drilling fluid into at least a portion of a subterranean formation, wherein at least a portion of the drilling fluid is capable of mixing with a cement composition. | 09-11-2014 |
Donald L. Whitfill, Kingwood, TX US
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20090038855 | Variable Density Fluids and Methods of Use in Subterranean Formations - Herein provided are variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid; and a portion of elastic particles, the elastic particles having an isothermal compressibility factor in the range of from about 1.5×10 | 02-12-2009 |
20090137431 | Oilwell sealant compositions comprising alkali swellable latex - Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition can be used in a wellbore and includes an alkali swellable latex and a pH increasing material. The sealant composition can have a pH of from about 7 to about 14. In other embodiments, the pH increasing material includes a base-producing material. The base-producing material can include alkali and alkali earth metal carbonates, alkali and alkali earth metal bicarbonates, alkali and alkali earth metal hydroxides, alkali and alkali earth metal oxides, alkali and alkali earth metal phosphates, alkali and alkali earth metal hydrogen phosphates, alkali and alkaline earth metal sulphides, alkali and alkaline earth metal salts of silicates, alkali and alkaline earth metal salts of aluminates, water soluble or water dispersible organic amines, polymeric amine, amino alcohols, or combinations thereof. | 05-28-2009 |
20090221452 | Lost circulation material formulation and method of use - A lost circulation material and method for well treatment employing the material that is effective at sealing or plugging small fissures and large fractures and has utility over a wide range of temperatures, including high temperatures. The material has an optimized bimodal particle distribution and optionally has a polymer flocculent or water swellable polymer. | 09-03-2009 |
20130112414 | Engineered Methods and Materials for Wellbore Strengthening in Subterranean Operations - A method of wellbore strengthening may include providing a wellbore strengthening fluid comprising a drilling fluid, a particulate, and a fiber; introducing the wellbore strengthening fluid into a wellbore penetrating a subterranean formation; and forming a plug comprising the particulate and the fiber in a void near the wellbore, the plug being capable of maintaining integrity at about 1000 psi or greater overbalance pressure. | 05-09-2013 |
20140038857 | Lost Circulation Material With A Multi-Modal Large Particle Size Distribution - Compositions for lost circulation materials (LCM) and methods for using same in drilling and/or completing wellbores that help solve lost circulation problems in a wide range of fracture sizes, thereby advantageously eliminating the need for a variety of products for lost circulation in a field at any one time. An unexpected synergy and improved reduction in lost circulation is obtained. The invention provides specific LCM components in specific ratios that are analogs to lost circulation fractures and that yield superior performance in preventing or alleviating lost circulation in drilling and cementing boreholes. The invention compositions have a multi-modal particle size distribution (PSD) which provides a higher concentration of component materials in the same range of two or more fracture widths, thus allowing plugging to occur over a wider range than a single mode or narrow PSD. | 02-06-2014 |
20150027707 | ENGINEERED METHODS AND MATERIALS FOR WELLBORE STRENGTHENING IN SUBTERRANEAN OPERATIONS - A method of wellbore strengthening may include providing a wellbore strengthening fluid comprising a drilling fluid, a particulate, and a fiber; introducing the wellbore strengthening fluid into a wellbore penetrating a subterranean formation; and forming a plug comprising the particulate and the fiber in a void near the wellbore, the plug being capable of maintaining integrity at about 1000 psi or greater overbalance pressure. | 01-29-2015 |
Donald L. Whitfill, Houston, TX US
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20120305248 | DRILLING FLUID THAT WHEN MIXED WITH A CEMENT COMPOSITION ENHANCES PHYSICAL PROPERTIES OF THE CEMENT COMPOSITION - According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes with three parts of a cement composition consisting of water and cement, the drilling fluid cement composition mixture develops a compressive strength of at least 1,200 psi. According to another embodiment, a method of using the drilling fluid comprises the steps of: introducing the drilling fluid into at least a portion of a subterranean formation, wherein at least a portion of the drilling fluid is capable of mixing with a cement composition. | 12-06-2012 |
20140155300 | OIL OR GAS TREATMENT FLUID CONTAINING A CHELATE OR COORDINATION COMPLEX THAT SETS - A treatment fluid comprises: a metal oxide, wherein the metal oxide is capable of forming a chelate complex or coordination complex with a ligand, wherein the chelate complex or coordination complex has a setting time of less than 90 minutes at a temperature of 71° F. and a pressure of 1 atmosphere. A method of treating a portion of a subterranean formation comprises: introducing the treatment fluid into the subterranean formation; allowing or causing a chelate complex or coordination complex to form between the metal oxide and a ligand; and allowing or causing the chelate complex or coordination complex to set. | 06-05-2014 |
James Whitfill, Phoenix, AZ US
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20100023857 | INTELLIGENT USER INTERFACE USING ON-SCREEN FORCE FEEDBACK AND METHOD OF USE - Certain embodiments of the present invention provide methods and systems combining user interface features with force feedback techniques in clinical applications. Certain embodiments provide a user interface providing clinical software tools and information access for a picture archiving and communication system. The user interface includes a plurality of regions displayed to represent selectable functionality for an associated plurality of clinical software tools and information. The user interface also includes a cursor movable by a user to select one of the plurality of regions. The user interface further includes a processor configured to determine a location and pattern of movement of the cursor and provide force feedback to the user based on the location and pattern of movement of the cursor to provide a non-visual indication to the user of the location and pattern of movement of the cursor. | 01-28-2010 |