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| Number | Title | Issue Date |
| 8171992 | Method of fracturing a subterranean formation at optimized and pre-determined conditions Prior to a hydraulic fracturing treatment, ΔSGPS for a desired propped fracture length, DPST, may be estimated wherein ΔSGPS=SGprop−SGfluid (SGprop being the specific gravity of the proppant and S... | 05/08/2012 |
| 8167039 | Method of fracturing a subterranean formation at optimized and pre-determined conditions Prior to a hydraulic fracturing treatment, the requisite median diameter of a proppant, dprop, into a fracture of defined length, DPST, may be estimated in accordance with Equation (I): (dprop)2=(A)... | 05/01/2012 |
| 8141632 | Method for hydraulic fracture dimensions determination A numerical model of a polymer-based fracturing fluid displacement from a fracture and a filtrate zone by a formation fluid is provided for calculating a change of a fracturing fluid concentration in a produced fluid and for calculating a change of a polymer concent... | 03/27/2012 |
| 8100177 | Method of logging a well using a thermal neutron absorbing material A method for determining the location and height of a fracture in a subterranean formation using a neutron emitting logging tool. The method includes obtaining a pre-fracture data set, fracturing the formation with a slurry that includes a proppant doped with a high... | 01/24/2012 |
| 8096355 | Analysis of radar ranging data from a down hole radar ranging tool for determining width, height, and length of a subterranean fracture Radar ranging data are collected from a down hole tool at various depths in a fractured well bore, and analyzed to provide a profile of the length of each wing of the fracture as a function of depth. The height of the fracture is determined from the vertical positio... | 01/17/2012 |
| 8082992 | Methods of fluid-controlled geometry stimulation Methods including the steps of selecting a target fracture geometry for a portion of a subterranean formation; selecting a target tip pressure and a target back flow pressure based at least in part on a calculation for the target fracture geometry; selecting a targe... | 12/27/2011 |
| 8051911 | Method of fracturing a subterranean formation at optimized and pre-determined conditions Prior to a hydraulic fracturing treatment, the requisite injection rate for a desired propped fracture length of a fracture may be estimated with knowledge of certain physical properties of the proppant and transport fluid such as fluid viscosity, proppant size and ... | 11/08/2011 |
| 7963325 | Method and system for fracturing subsurface formations during the drilling thereof A method for fracturing a wellbore while drilling a wellbore includes inserting a drill string into a wellbore. A fluid is pumped into at least one of an interior passage in the drill string and an annular space between a wall of the wellbore and the drill string. A... | 06/21/2011 |
| 7946340 | Method and apparatus for orchestration of fracture placement from a centralized well fluid treatment center A method and apparatus for orchestrating multiple fractures at multiple well locations in a region by flowing well treatment fluid from a centralized well treatment fluid center includes the steps of configuring a well treatment fluid center for fracturing multiple ... | 05/24/2011 |
| 7938181 | Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations A method of injecting a treatment fluid into a portion of a subterranean formation, comprising providing a treatment fluid having a viscosity; determining the breakdown pressure of the portion of the subterranean formation; calculating the maximum sustainable flow r... | 05/10/2011 |
| 7753119 | In-situ heavy-oil reservoir evaluation with artificial temperature elevation Many reservoirs of interest include heavy oil. In such reservoirs, partly at normal temperatures, many instruments commonly used for formation evaluation may not be able to distinguish between heavy oil and bound water in the formation. Passive or active heating is ... | 07/13/2010 |
| 7726397 | Methods and compositions for determination of fracture geometry in subterranean formations Disclosed herein is a method comprising disposing in a formation fracture, a proppant and/or a fracturing fluid that comprises a radiation susceptible material that comprises indium and/or vanadium; irradiating the radiation susceptible material with neutrons; measu... | 06/01/2010 |
| 7712526 | Proppant suspension testing devices and methods of use An apparatus for testing a rheological property of a fluid with a particulate includes: (a) a receptacle having a cylindrical side wall enclosed by a bottom wall defining a cavity for receiving a fluid to be tested; (b) an axial support adapted to be positioned in t... | 05/11/2010 |
| 7677306 | Hydraulic fracturing Method and apparatus for estimating a fluid driven fracture volume during hydraulic fracturing treatment of a ground formation. A series of tiltmeters are positioned at spaced apart tiltmeter stations at which tilt changes due to the hydraulic fracturing treatment a... | 03/16/2010 |
| 7669655 | Method of fracturing a subterranean formation at optimized and pre-determined conditions Prior to a hydraulic fracturing treatment, the estimated fracture length may be estimated with knowledge of certain physical properties of the proppant and transport fluid such as fluid viscosity, proppant size and specific gravity of the transport slurry as well as... | 03/02/2010 |
| 7591306 | Enhanced hydrocarbon recovery by steam injection of oil sand formations The present invention involves a method and apparatus for enhanced recovery of petroleum fluids from the subsurface by injection of a steam and hydrocarbon vaporized solvent in contact with the oil sand formation and the heavy oil and bitumen in situ. Multiple propp... | 09/22/2009 |
| 7516787 | Method of developing a subsurface freeze zone using formation fractures A method for lowering the temperature of a portion of a subsurface formation is provided. Preferably, the formation is an oil shale formation. The method includes the step of injecting a cooling fluid under pressure into a wellbore, with the wellbore having been com... | 04/14/2009 |
| 7472748 | Methods for estimating properties of a subterranean formation and/or a fracture therein Methods that include a method of determining one or more approximate properties of a subterranean formation and/or a fracture therein comprising: obtaining fluid identity data for a plurality of flowback fluid samples; and using a reservoir model, with the fluid ide... | 01/06/2009 |
| 7451812 | Real-time automated heterogeneous proppant placement A system and a method for heterogeneous proppant placement in a fracture (12) in a subterranean formation (18) are disclosed. The system includes a delivery system (10) for delivering proppant and treatment fluid to the fracture (12), a s... | 11/18/2008 |
| 7441598 | Methods of stabilizing unconsolidated subterranean formations Methods of stabilizing unconsolidated portions of a subterranean formation are provided. In one embodiment, the methods comprise: creating or enhancing at least two slots in an unconsolidated portion of a subterranean formation along a well bore, wherein the slots a... | 10/28/2008 |
| 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 |
| 7424911 | Method of estimating fracture geometry, compositions and articles used for the same Disclosed herein is a method of determining the fracture geometry of a subterranean fracture comprising introducing into the fracture a target particle and/or proppant; transmitting into the fracture electromagnetic radiation having a frequency of about 300 megahert... | 09/16/2008 |
| 7392842 | Proppant suspension testing devices and methods of use An apparatus for testing a rheological property of a fluid with a particulate includes: (a) a receptacle having a cylindrical side wall enclosed by a bottom wall defining a cavity for receiving a fluid to be tested; (b) an axial support adapted to be positioned in t... | 07/01/2008 |
| 7377318 | Interpretation and design of hydraulic fracturing treatments Solutions for the propagation of a hydraulic fracture in a permeable elastic rock and driven by injection of a Newtonian fluid. Through scaling, the dependence of the solution on the problem parameters is reduced to a small number of dimensionless parameters. ... | 05/27/2008 |
| 7350590 | Instrumentation for a downhole deployment valve The present generally relates to apparatus and methods for instrumentation associated with a downhole deployment valve or a separate instrumentation sub. In one aspect, a DDV in a casing string is closed in order to isolate an upper section of a wellbore from a lowe... | 04/01/2008 |
| 7350571 | Methods of preparing and using coated particulates The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par... | 04/01/2008 |
| 7347260 | Method for determining tracer concentration in oil and gas production fluids A method for determining the extent of recovery of materials injected or otherwise introduced into oil wells or subsurface formations is practiced using a portable device. The portable device can also be used to determiner the occurrence of a predetermined condition... | 03/25/2008 |
| 7348893 | Borehole communication and measurement system A technique that is usable with a well includes using at least one downhole sensor to establish telemetry within the well. The sensor(s) are used as a permanent sensing device. ... | 03/25/2008 |
| 7340384 | Process for determining the variation in the relative permeability of at least one fluid in a reservoir A method for determining for a reservoir (1) containing fluids (W, O), the variation in the relative permeability (krO, krW) of at least one of the fluids, as a function of the saturation of at least one of the fluids (W, O),) is provided. According to this m... | 03/04/2008 |
| 7337660 | Method and system for reservoir characterization in connection with drilling operations A method for analyzing reservoir fluids in connection with a drilling operation includes determining composition and isotopes of injection fluids injected into a wellbore during a drilling operation and production fluids recovered from the wellbore during the drilli... | 03/04/2008 |
| 7337839 | Fluid loss additive for enhanced fracture clean-up A hydraulic fracturing method is disclosed that includes designing a fracture treatment including a fluid pumping schedule to fracture a subterranean formation according to a design model that accounts for cumulative filter cake thickness, including polymer concentr... | 03/04/2008 |
| 7334635 | Methods for fracturing subterranean wells A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates... | 02/26/2008 |
| 7334636 | Methods of creating high-porosity propped fractures using reticulated foam One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ... | 02/26/2008 |
| 7322422 | Inflatable packer inside an expandable packer and method A completion assembly for use in a well, including at least one inflatable packer; at least one control line and at least one source of pressurized fluid wherein the at least one source of pressurized fluid is in fluid communication with the at least one inflatable ... | 01/29/2008 |
| 7318473 | Methods relating to maintaining the structural integrity of deviated well bores Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic... | 01/15/2008 |
| 7318474 | Methods and compositions for controlling formation fines and reducing proppant flow-back Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ... | 01/15/2008 |
| 7314082 | Methods of improving well bore pressure containment integrity Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeabl... | 01/01/2008 |
| 7311147 | Methods of improving well bore pressure containment integrity Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeabl... | 12/25/2007 |
| 7308936 | Methods of improving well bore pressure containment integrity Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeabl... | 12/18/2007 |
| 7302849 | Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces The invention relates to monitoring of fluid-filled domains in various media including, for example, subterranean formations, construction elements, bones. Claimed are a method for determining characteristic sizes of a fluid-filled crack in a medium and a system for... | 12/04/2007 |
