| Patent Number |
Title Of Patent |
Date Issued |
| 7552648 |
Measuring mechanical properties |
June 30, 2009 |
| Methods of determining the mechanical properties of a sample include applying a first pressure condition to a first portion of the sample and applying a second pressure condition to the second portion of the sample, the second pressure condition being different than the first pressure |
| 7550412 |
Compositions and methods for producing guar gum and for using the guar gum in treating a subterr |
June 23, 2009 |
| The invention provides a method for producing guar gum, the method comprising the steps of: (a) sizing husk from guar seed into larger pieces and smaller pieces, (b) washing the larger pieces, (c) soaking the larger pieces, and (d) flaking the larger pieces to obtain guar gum. The in |
| 7550411 |
Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subter |
June 23, 2009 |
| Methods of controlling shale swelling in a subterranean formation comprising introducing a treatment fluid into the subterranean formation, wherein the treatment fluid comprises a base fluid and a polyoxazoline composition. Subterranean treatment fluids comprising a base fluid and a |
| 7549475 |
Systems for actuating a downhole tool |
June 23, 2009 |
| A system for actuating a downhole tool disposed within a work string comprising a support suspending the work string into a well bore, a launching apparatus positioned at a location remote from the work string, a tortuous path connected between the launching apparatus and the work st |
| 7549474 |
Servicing a wellbore with an aqueous based fluid comprising a clay inhibitor |
June 23, 2009 |
| A method of servicing a wellbore in contact with a subterranean formation comprising placing an aqueous composition comprising a mud displacement fluid and a clay inhibitor into the wellbore. An aqueous composition for servicing a wellbore comprising a mud displacement fluid and a clay |
| 7549320 |
Measuring cement properties |
June 23, 2009 |
| A cement sample testing apparatus including a first pressure zone; a second pressure zone; and a pressure control system. The pressure control system can be in fluid communication with the first pressure zone and the second pressure zone, operable to raise the first pressure zone to a |
| 7549319 |
High pressure resonant vibrating-tube densitometer |
June 23, 2009 |
| A method of manufacturing a high pressure vibrating tube densitometer comprising enclosing twin flow tubes within an outer shell, wherein the outer shell comprises portals for the installation or replacement of internal components. A vibrating tube densitometer system for determining |
| 7547665 |
Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods |
June 16, 2009 |
| Treatment fluids are provided that comprise a gelling agent that comprises scleroglucan and/or diutan. |
| 7547664 |
Additives comprising chlorinated carbohydrates |
June 16, 2009 |
| Additives for use in treatment operations, and more particularly, additives that include chlorinated carbohydrates, are provided. An example of an additive is a well fluid additive for use in a subterranean formation that includes a chlorinated carbohydrate. Another example of an add |
| 7547663 |
Invert drilling fluids and methods of drilling boreholes |
June 16, 2009 |
| Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel |
| 7547345 |
High performance powdered metal mixtures for shaped charge liners |
June 16, 2009 |
| A liner (18) for a shaped charge (10) that utilizes a high performance powered metal mixture to achieve improved penetration depths during the perforation of a wellbore is disclosed. The high performance powdered metal mixture includes powdered tungsten and powdered metal binder. The |
| 7544642 |
Zeolite-containing remedial compositions |
June 9, 2009 |
| Methods and compositions for wellbore treating fluids that include zeolite and at least one carrier fluid. |
| 7544641 |
Rapid setting plugging compositions for sealing subterranean formations |
June 9, 2009 |
| Rapid setting plugging compositions comprising oil, clay, magnesium chloride, and magnesium oxide powder are provided for sealing permeable zones in subterranean formations. The permeable zones may be sealed by passing the plugging composition and water to the subterranean formation. |
| 7544640 |
Zeolite-containing treating fluid |
June 9, 2009 |
| Methods and compositions are provided for treating fluids, especially spacer fluids and cement compositions as well as drilling, completion and stimulation fluids including, but not limited to, drilling muds, well cleanup fluids, workover fluids, conformance fluids, gravel pack fluids, |
| 7543660 |
Roller cone drill bit with debris diverter plugs |
June 9, 2009 |
| A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an associated spindle extending inwardly. A respective cone assembly may be rotatably disposed on each spindle. At least one diverter plug may be disposed in a |
| 7543645 |
Method for servicing a well bore using a mixing control system |
June 9, 2009 |
| A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and controlling the mixing system to provide the material mixture to the well bore at approximately |
| 7543642 |
Cement compositions containing flexible, compressible beads and methods of cementing in subterra |
June 9, 2009 |
| Cement compositions comprising flexible, compressible beads, processes for preparing such cement compositions, and methods of cementing in subterranean formations using such cement compositions. One or more flexible, compressible beads are mixed with the cement before pumping the cem |
| 7543635 |
Fracture characterization using reservoir monitoring devices |
June 9, 2009 |
| A system for monitoring a wellbore service treatment, comprising a downhole tool operable to perform the wellbore service treatment; a conveyance connected to the downhole tool for moving the downhole tool in the wellbore, and a plurality of sensors operable to provide one or more we |
| 7542864 |
System and method for measuring material added to a vessel under a vacuum |
June 2, 2009 |
| The present invention relates generally to weight measurement methods and systems, and more specifically, to weight measurement methods and systems for material in a dynamic vacuum material transfer or other system utilizing differential conveying fluid pressure. The invention determines |
| 7541318 |
On-the-fly preparation of proppant and its use in subterranean operations |
June 2, 2009 |
| The present invention relates to methods for making proppants on-the-fly during subterranean treatment operations. Some embodiments of the present invention provide methods of preparing proppant on-the-fly comprising providing discrete amounts of a resin mixture that comprises a resinous |
| 7541316 |
Wellbore treatment fluids having improved thermal stability |
June 2, 2009 |
| Aqueous wellbore treatment fluids having improved thermal stability are provided. The wellbore treatment fluids comprise at least one polysaccharide and an effective amount of at least one polyacrylamide to maintain its stability at a temperature greater than about 250.degree. F. A f |
| 7537656 |
Cement compositions comprising biodegradable monomers for retarding the setting thereof |
May 26, 2009 |
| Cement compositions may comprise one or more secondary amines substituted with a carboxyl group or salts thereof (e.g., 3-hydroxy N,N'-iminodisuccinic acid) for retarding the setting of such compositions. The inclusion of such materials in cement compositions may be highly beneficial |
| 7537054 |
Cement compositions comprising high aspect ratio materials and methods of use in subterranean fo |
May 26, 2009 |
| The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions that include high aspect ratio materials, and methods for using such cement compositions in subterranean formations. An example of a method of the present invention |
| 7534746 |
Metallic soaps of modified tall oil acids |
May 19, 2009 |
| A method and product is disclosed which provides emulsion stability and filtration control to invert emulsion drilling fluids. The product comprises a blend of a carboxylic acid terminated polyamide with distilled and processed tall oil fatty acids and/or distilled and processed tall |
| 7534745 |
Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic aci |
May 19, 2009 |
| The present invention relates to emulsion compositions and associated methods. More particularly, the present invention relates to gelled invert emulsion compositions and their associated methods of use and preparation. In one embodiment, the present invention provides a method of tr |
| 7534744 |
Method and composition for preventing or treating lost circulation |
May 19, 2009 |
| An improved composition and method is provided for preventing or alleviating lost circulation during the drilling of wellbores in subterranean formations, and particularly during the drilling of oil and gas wells. The method is suited for horizontal and directional wells as well as m |
| 7534743 |
Invert drilling fluids and methods of drilling boreholes |
May 19, 2009 |
| Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel |
| 7533729 |
Reverse cementing float equipment |
May 19, 2009 |
| A regulating valve assembly for regulating fluid flow through a passage, the assembly having: a back-flow valve comprising a seat and a closure element, wherein the closure element engages with the seat in a closed configuration and disengages from the seat in an open configuration; a |
| 7533728 |
Ball operated back pressure valve |
May 19, 2009 |
| A method for selectively closing a downhole one way check valve, the method having the following steps: attaching the valve to a casing; locking the valve in an open configuration; running the casing and the valve into the wellbore; reverse circulating a composition down an annulus d |
| 7533722 |
Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
May 19, 2009 |
| A surge chamber assembly (70) for use in a wellbore includes a housing (80) having one or more openings (112), a surge chamber (100) and a combustion chamber (98). The openings (112) provide fluid communication between the exterior (82) of the housing (80) and the surge chamber (100) |
| 7531484 |
Methods and solutions for removing HEC-based CFLA from a subterranean formation |
May 12, 2009 |
| The current invention provides a novel downhole maleic acid solution suitable for restoring fluid permeability to subterranean formations that were previously treated with chemical fluid loss control agents based on hydroxyethyl cellulose polymer. The current invention also provides |
| 7530396 |
Self repairing cement compositions and methods of using same |
May 12, 2009 |
| A method of servicing a wellbore comprising placing a cement composition comprising a cementitious material, water, and an elastomeric material comprising a bonding polar group into a wellbore, and allowing the cement composition to set to form a set cement, wherein the elastomeric mater |
| 7530395 |
Methods of using wellbore servicing compositions |
May 12, 2009 |
| A method of servicing a wellbore comprising placing in the wellbore a composition comprising a calcium aluminate cement and at least one gelation inhibitor, and allowing the composition to set. A method of servicing a wellbore comprising adjusting the thickening time of calcium alumi |
| 7530394 |
Cement compositions for low temperature applications |
May 12, 2009 |
| A method of servicing a wellbore comprising placing in the wellbore a cement composition comprising light-burned magnesium oxide, water and an alkaline metal chloride, and allowing the composition to set. A method of cementing comprising preparing a cement composition comprising a li |
| 7528095 |
Methods and compositions for improving the thermal stability of aqueous polymeric wellbore treat |
May 5, 2009 |
| Methods of improving the thermal stability of an aqueous wellbore treatment fluid are provided. The wellbore treatment fluid comprises at least one polysaccharide and an effective amount of at least one polyacrylamide to maintain its stability at a temperature greater than about 250. |
| 7527104 |
Selectively activated float equipment |
May 5, 2009 |
| A valve for a well pipe, the valve having the following parts: a valve collar connectable to the well pipe; an index piston coaxially positioned within the valve collar for longitudinal translation within the valve collar between closed, flow-open, and locked-open configurations; a d |
| 7527098 |
Methods of increasing the thickening times of phosphate-based cementitious compositions in high- |
May 5, 2009 |
| A wellbore may be cemented by preparing a cementitious composition comprising water, a metal oxide or hydroxide compound, a phosphate compound, a borate compound, and a sugar, followed by displacing the cementitious composition into the wellbore. The metal oxide or hydroxide compound |
| 7525264 |
Shunt regulation apparatus, systems, and methods |
April 28, 2009 |
| In some embodiments, an apparatus and a system, as well as a method and an article, may include receiving shunt current in one or more conductors according to a sensed component of power distributed by the conductors through one or more transformers coupled to the conductors and determin |
| 7524369 |
Low-density cement compositions, density-reducing additives, and methods of use |
April 28, 2009 |
| Methods of using density-reducing additives comprising low-density particulates in subterranean cementing operations are provided. In one embodiment, the present invention provides a method of cementing comprising: providing a cement composition comprising a cement component, a base |
| 7523787 |
Reverse out valve for well treatment operations |
April 28, 2009 |
| A reverse out valve (100) comprises an outer housing (120) and a mandrel (144) that form a bypass region (130) therebetween. The mandrel (144) includes a central flow path (164) with a valve seat (152) positioned therein and first and second side wall ports (148, 150). A valve element |
| 7523784 |
Method of using humic acid grafted fluid loss control additives in cementing operations |
April 28, 2009 |
| Exemplary embodiments of the cement compositions comprise water, a cement, and a fluid loss control additive, the fluid loss control additive comprising a graft copolymer. The graft copolymer comprises a backbone and at least four grafted monomers selected from the group consisting of |
| 7521399 |
Drilling fluids containing biodegradable organophilic clay |
April 21, 2009 |
| Drilling fluids are provided that comprise an organophilic clay treated with a quaternary ammonium surfactant having an amide linkage. The quaternary ammonium surfactant may comprise a compound generally represented by the following formula: ##STR00001## where M.sup.- is an anion su |
| 7520327 |
Methods and materials for subterranean fluid forming barriers in materials surrounding wells |
April 21, 2009 |
| Disclosed is a method and material for forming a fluid barrier in the material surrounding a wellbore. The method involves temporarily opening a fracture extending from the wellbore and then depositing particulates in the fracture which will swell when exposed to the fluid. The particles |
| 7517836 |
Defoaming methods and compositions |
April 14, 2009 |
| Embodiments of the present invention are directed to defoaming methods and compositions for well treatment fluids. An exemplary embodiment of the present invention provides a method of defoaming a well treatment fluid, comprising combining a defoaming composition with the well treatment |
| 7516802 |
Assembly and method for determining thermal properties of a formation and forming a liner |
April 14, 2009 |
| The present invention relates to methods and apparatus for making in situ thermal property determinations utilizing a heat source employed in wellbore stabilization procedures, well drilling, or well perforating, for example. In particular, using a heat source, such as a laser driller, |
| 7516788 |
Methods of marking a zone of a wellbore for localizing the source of produced particulate |
April 14, 2009 |
| A method of localizing the source of a particulate produced with a fluid through a wellbore is provided, the method comprising the steps of: (A) providing marking composition comprising at least one marker that: (i) is capable of binding with a particulate; and (ii) has a detectable prop |
| 7511823 |
Fiber optic sensor |
March 31, 2009 |
| An apparatus, system and method are provided for measuring state properties without requiring an internal or proximate power supply. The apparatus provides a sensing device that is responsive to fluctuations in a state property that are encountered within the test zone. Due to the fl |
| 7510609 |
Low-density cement compositions, density-reducing additives, and methods of use |
March 31, 2009 |
| Density-reducing additives comprising low-density particulates, and cement compositions comprising such additives, are provided. In one embodiment, the present invention provides a cement composition comprising: a cement component; a density-reducing additive comprising particulates that |
| 7510027 |
Borehole drilling control system, method and apparatus |
March 31, 2009 |
| One embodiment includes an apparatus comprising a steerable well bore drilling tool having a main tool body. The steerable well bore drilling tool includes an inertial measurement unit to output a measurement used to determine an azimuthal deviation and inclination of the steerable well |
| 7510017 |
Sealing and communicating in wells |
March 31, 2009 |
| A device includes a main body adapted to couple between a first element of a working string and a second element of the working string. A seal is provided about the main body and is adapted to substantially sealingly engage a wall of the wellbore. An conductor is carried by the main body |
