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| Number | Title | Issue Date |
| 8158000 | System and method of separating hydrocarbons A system for separating hydrocarbons from a solid source, the system including a mixer configured to produce a slurry including the solid source and a liquid, and a first separator in fluid communication with the mixer, the first separator configured to separate hyd... | 04/17/2012 |
| 8141714 | Linear motors for shaker motion control Embodiments relate to a vibratory screen separator and methods for using a vibratory screen separator. The vibratory screen separator may have a stationary base, a movable basket, and at least one linear motor for imparting motion to the movable basket, and methods ... | 03/27/2012 |
| 8113358 | Pre-tensioned sifter screen A screen for a gyratory sifter including a frame having a plurality of cross-members and a rigid external extension. Additionally, the screen including a filtering element securably attached to the frame. Also, a method for installing a pre-tensioned screen in a gyr... | 02/14/2012 |
| 8083935 | Cuttings vessels for recycling oil based mud and water A system for recycling a drilling fluid that includes a first cuttings storage vessel, a second cuttings storage vessel, and a module fluidly connected to the first and second cuttings storage vessels, the module having a valve configured to fluidly connect the firs... | 12/27/2011 |
| 8074510 | High pressure screen flow-through testing device A screen test apparatus includes a test cell disposed within a pressure vessel, a piston disposed within the pressure vessel, wherein the piston is in sealing contact with an inner surface of the pressure vessel, and a screen assembly disposed in an end of the test ... | 12/13/2011 |
| 8074509 | Wellbore monitor A system for determining produced drill solids volume including a receiving vessel for receiving drill solids and a pressure vessel coupled to the receiving vessel. The receiving vessel has an isolation valve system to control the flow of drill solids between the re... | 12/13/2011 |
| 8002991 | Dewatering method Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to hou... | 08/23/2011 |
| 7938273 | Magnetic clamping assembly A vibratory separator including a screen having a filter element and a center screen disk. The vibratory separator also including a magnet disposed on top of the center pedestal support, wherein the center screen disk and the magnet are configured to magnetically in... | 05/10/2011 |
| 7900504 | High pressure fracture tester A system for testing a drilling fluid including a vessel having a fluid inlet, a filtrate outlet, a fluid outlet, and at least one permeable media disposed within the vessel. The system further including a base fluid container in fluid communication with the fluid i... | 03/08/2011 |
| 7866482 | Molded end cap for oilfield screens A filter screen to be used in conjunction with a shale shaker in removing solid matter from drilling fluids includes a filter plate having a plurality of perforations, a plurality of hold-down apertures, and a pair of end caps attached to the filter plate, wherein e... | 01/11/2011 |
| 7819255 | Screen for a vibratory separator A shaker apparatus including a basket having an upstream side, a downstream side, and two side walls, at least one wedge guide and one support rail disposed on each side wall, and at least one screen assembly. The support rails and the wedge guides may be configured... | 10/26/2010 |
| 7770665 | Use of cuttings tank for in-transit slurrification A system for preparing a slurry in-transit including a first cuttings storage vessel disposed on a transport vehicle, a module configured to operatively connect to the first cuttings storage vessel, and a fluid supply line in fluid communication with the first cutti... | 08/10/2010 |
| 7753990 | Aerated degasser The present invention provides a system for reducing entrained and dissolved gasses from a well fluid. The system includes a well fluid, at least one process tank into which the well fluid flows, wherein a first process tank comprises a weir arrangement over which t... | 07/13/2010 |
| 7753213 | Composite screen A screen support frame for a shale shaker includes a first end, a second end disposed opposite the first end, a first side disposed substantially perpendicular the first and second ends, a second side disposed opposite the first side and a plurality of transverse ri... | 07/13/2010 |
| 7740068 | Silicate-based wellbore fluid and methods for stabilizing unconsolidated formations A method for treating a subterranean formation penetrated by a wellbore that includes injecting an alkali silicate into the wellbore; injecting a solid micronized silicate-precipitating agent into the wellbore; and allowing the alkali silicate and the solid microniz... | 06/22/2010 |
| 7717177 | Energized fluid for generating self-cleaning filter cake A process for generating and subsequently breaking a filter cake, including dissolving a non-reactive gas in a wellbore fluid to form an energized fluid; pumping the energized fluid into a formation at a downhole pressure, wherein the pumping is at overbalanced cond... | 05/18/2010 |
| 7704299 | Methods of hydrogen sulfide treatment The present invention provides a method of treating a process fluid that includes assembling a modular system, flowing the process fluid through the modular system, the flowing the process fluid through the modular system including degassing the process fluid, neutr... | 04/27/2010 |
| 7517835 | Surfactant-polymer compositions for enhancing the stability of viscoelastic-surfactant based fluid Compositions for increasing the thermal and pressure stability of well fluids viscosified using viscoelastic surfactants, the compositions including an effective amount of an oligomeric or polymeric compound that has a thermally stable backbone structure and at leas... | 04/14/2009 |
| 7478020 | Apparatus for slurry and operation design in cuttings re-injection A system for simulating a wellbore used for cuttings re-injection, that includes functionality to obtain as input to the system at least one wellbore design parameter for the wellbore, at least one operating parameter for the cuttings re-injection, and a slurry desi... | 01/13/2009 |
| 7455783 | Method for centrifugal separation enhancement A method for removing low gravity solids from an oil-based drilling fluid includes directing the drilling fluid into a first inlet of a first line in fluid communication with a centrifuge, injecting steam into the drilling fluid through a second inlet in the first l... | 11/25/2008 |
| 7449431 | Additive for increasing the density of a fluid for casing annulus pressure control A method of controlling the pressure of a casing annulus in a subterranean well that includes injecting into the casing annulus a composition including a base fluid and a polymer coated colloidal solid material. The polymer coated colloidal solid material includes: ... | 11/11/2008 |
| 7440876 | Method and apparatus for drilling waste disposal engineering and operations using a probabilistic approach A method for determining distribution data for a disposal domain parameter to increase assurance in a cuttings injection process, including performing a fracturing simulation using a site specific datum to obtain a fracturing result, determining a probability of cre... | 10/21/2008 |
| 7438142 | Recovery system A process for the recovery of industrial carbon material from a mixture. The mixture may include drilling fluids, drilled solids, and industrial carbon from a mud system. The process may include: separating at least a portion of the drilled solids from the mixture t... | 10/21/2008 |
| 7429327 | Clarifying tank Methods and apparatus for separating solid particles from a fluid. One preferred embodiment includes a tank for settling particles out of the fluid, a conical chamber at the bottom of the tank, an outlet connected to conical chamber, and a conical auger within the c... | 09/30/2008 |
| 7427582 | Internal breaker A wellbore fluid including a peroxide degradable polymer and an encapsulated peroxide source. The peroxide degradable polymer may be a polysaccharide. The peroxide source may include an inorganic peroxide, including zinc and alkaline earth metal peroxides, such as m... | 09/23/2008 |
| 7409994 | Drilling well with drilling fluid of fluid phase and weighting agent An additive that increases the density of fluids used in a wellbore during the construction or repair of oil, gas, injection, water, or geothermal wells comprises In one illustrative embodiment the additive comprises a weighting agent, and more preferably an ultra-f... | 08/12/2008 |
| 7399731 | Electrically conductive non-aqueous wellbore fluid A non-aqueous wellbore fluid comprises a non-aqueous continuous phase with one or more organic salts having the formula ((R1-Q)pX)mZn, one or more oligomeric organic salts based on linked ((R1-Q)pX) | 07/15/2008 |
| 7396052 | Sanitary sealed connector for fluid handling systems and storage devices A sanitary connector apparatus includes first and second tubular members coaxially aligned such that a first member end of the first tubular member is positioned toward a second member end of the second tubular member. First and second sealing components radially ex... | 07/08/2008 |
| 7389882 | Multi-hardness composite screen frame A self-cleaning screen assembly for a vibratory separator is disclosed. The self-cleaning screen assembly includes a peripheral frame having a top mounting surface to which at least one screen cloth is affixed and a bottom mounting surface to which a flow through su... | 06/24/2008 |
| 7387985 | Monovalent cation-containing well fluids A monovalent cation containing well fluid composed of an aqueous brine containing at least 0.6 equivalents per liter of a water soluble monovalent cation salt, is substantially free of divalent cations, and an amount of a starch derivative selected such that the wel... | 06/17/2008 |
| 7380672 | Flow diverter and exhaust blower for vibrating screen separator assembly A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials. ... | 06/03/2008 |
| 7380673 | Flow diverter and exhaust blower for vibrating screen separator assembly A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials. ... | 06/03/2008 |
| 7377336 | Modular pressure control and drilling waste management apparatus for subterranean borehole A modularly segmented apparatus for precise borehole pressure control, removing waste from borehole fluid, and recirculating the cleaned borehole fluid includes a pressure control section, a gas separator section, and a waste management section. In the pressure cont... | 05/27/2008 |
| 7377721 | Methods for using reversible phase oil-based drilling fluid Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil type ... | 05/27/2008 |
| 7370820 | Method and system for harvesting weighting agent fines A method for harvesting weighting agent fines includes milling weighting agent into a plurality of pieces, classifying the pieces based on size to extract those particles having a particle size less than an acceptable maximum diameter, reclassifying the pieces based... | 05/13/2008 |
| 7370568 | Method and apparatus for angularly positioning a shaker separator bed An apparatus for angularly positioning a shaker bed, including a discharge end, includes an air source providing pressurized air, an hydraulic tank in selective communication with the air source and containing a quantity of fluid, at least one bellow in selective fl... | 05/13/2008 |
| 7363937 | Replaceable sleeve insert for a choke assembly A replaceable sleeve insert for a choke assembly is disclosed, wherein the replaceable sleeve insert has a tubular member coaxially and sealingly retained within an upper body section of the choke assembly. The tubular member is also sealed against the bonnet. The t... | 04/29/2008 |
| 7358635 | Magnetic power transmission devices for oilfield applications A method and apparatus relates to incorporating a magnetic coupling for use in oilfield applications. The magnetic coupling is operatively coupled to an oilfield machine to provide a controlled operational speed. The magnetic coupling may be operatively connected to... | 04/15/2008 |
| 7353621 | Cleaning apparatus for vertical separator A cleaning apparatus for a material dryer may include an air source, a pulse nozzle selectively in fluid communication with the air source and located within a section of the solids outlet assembly, and a controller for controlling an air flow from the air source pe... | 04/08/2008 |
| 7343827 | System and process for break detection in porous elements for screening or filtering A method of detecting breaks in a porous element in a material separator is disclosed. A shielding is created in the material separator to form a barrier to RF energy. The shielding is formed with a path through the barrier capable of allowing RF energy and material... | 03/18/2008 |
