Patent application number | Description | Published |
20100099586 | BORON CROSSLINKERS FOR FRACTURING FLUIDS WITH APPRECIABLY LOWER POLYMER LOADING - Fracturing fluid compositions and methods of fracturing subterranean formations using polyboronic compounds as crosslinking agents are provided. The compositions and methods of the present invention allow for lower polymer loadings because achieving higher fracturing fluid viscosities can be achieved using less polymer than in traditional crosslinked systems. | 04-22-2010 |
20100099913 | METHODS OF MAKING POLYBORONIC COMPOUNDS AND COMPOSITIONS RELATED THERETO - Polyboronic compounds and methods of making them are provided. The polyboronic compounds are useful as crosslinking agents. The polyboronic compounds are produced by contacting a polymeric amine with a trialkylborate in the presence of a solvent so that the resulting molecule has more than one B—N bond. | 04-22-2010 |
20100197966 | METHODS OF MAKING POLYBORONIC COMPOUNDS AND COMPOSITIONS RELATED THERETO - Polyboronic compounds and methods of making them are provided. The polyboronic compounds are useful as crosslinking agents. The polyboronic compounds are produced by contacting a polymeric amine with a trialkylborate in the presence of a solvent so that the resulting molecule has more than one B—N bond. | 08-05-2010 |
20110015100 | Method of Treating Subterranean Formations with Carboxylated Guar Derivatives - The production of hydrocarbons from a subterranean formation is enhanced by use of a well treatment fluid which contains a carboxylated guar which may be prepared by reacting a guar source and a derivatizing agent of the formula X(CH | 01-20-2011 |
20120270760 | Boron Crosslinkers For Fracturing Fluids With Appreciably Lower Polymer Loading - Fracturing fluid compositions and methods of fracturing subterranean formations using polyboronic compounds as crosslinking agents are provided. The compositions and methods of the present invention allow for lower polymer loadings because achieving higher fracturing fluid viscosities can be achieved using less polymer than in traditional crosslinked systems. | 10-25-2012 |
20120310011 | PREPARATION OF BORON CROSSLINKING AGENTS FOR FRACTURING FLUIDS - Methods for making polyaminoboric acid compounds are provided. The polyaminoboric acid compounds are made by reacting a polyamine with boric acid in the presence of a solvent to produce polyaminoboric acid compounds with more than one boron-nitrogen bond. The polyaminoboric acid compounds are useful as crosslinking agents for fracturing fluids. | 12-06-2012 |
20130025867 | METHOD OF SLICKWATER FRACTURING - The present invention relates to a method of slickwater hydraulic fracturing of a subterranean formation comprising introducing into a wellbore an aqueous fracturing fluid comprising a nonionic polymer and polyethylene oxide. | 01-31-2013 |
20130041587 | Using polymer elasticity to scale up the lab characteristics to field application of friction reducers - A method of determining the friction pressure drop gradient of at least one drag-reducing polymer passing through a tubing in an underground well includes determining the pressure drop, velocity and relaxation time of the drag-reducing polymer as it passes through a length of small diameter straight tubing at multiple injection rates in the lab. For each data set, the variables x=(Relaxation Time×Velocity) and y=(Pressure Drop Gradient×Diameter | 02-14-2013 |
20130105154 | WELL TREATMENT AGENTS COATED WITH ALTERNATING LAYERS OF POLYIONIC MATERIALS AND METHODS OF USING THE SAME | 05-02-2013 |
20130220621 | Polyboronic Compounds and Processes of Making and Using the Same - Polyboronic compounds useful as delayed crosslinking agents may be produced by using a polyamine as base scaffold and incorporating boron via reaction with intermediate borates which may be formed in the condensation reaction between boric acid and a diol. A di-aldehyde, such as glyoxal, may be introduced following caustic treatment of the reaction mixture of polyaminoboronate to form the polyboronic compound. | 08-29-2013 |
20130324445 | Microemulsion and Nanoemulsion Breaker Fluids With Organic Peroxides - Incorporating at least oil-soluble organic peroxide into a mixture of an aqueous phase and at least one surfactant creates a breaker fluid that is a microemulsion or a nanoemulsion that can then perform as an internal breaker for reducing the viscosity of aqueous fluids gelled with a polymer, such as a crosslinked polysaccharide. One phase of the breaker fluid is water or water-based, e.g. brine, containing at least one oil-soluble organic peroxide as a non-aqueous internal phase that will, over time and optionally with heat, break the polymer-gelled portion of the gel. The overall breaking using the breaker fluid is slower as compared to introducing the organic peroxide breaker in a non-microemulsified or non-nanoemulsified form. | 12-05-2013 |
20140000890 | Fracturing Fluids and Methods For Treating Hydrocarbon-Bearing Formations | 01-02-2014 |
20140000896 | Fracturing Fluids and Methods For Treating Hydrocarbon-Bearing Formations | 01-02-2014 |
20140000897 | Fracturing Fluids and Methods For Treating Hydrocarbon-Bearing Formations | 01-02-2014 |
20140332213 | HYDRAULIC FRACTURING COMPOSITION, METHOD FOR MAKING AND USE OF SAME - A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state and configured to break in response to a breaking condition; a plurality of proppant particles disposed in the superabsorbent polymer prior to release of the plurality of proppant particles from the superabsorbent polymer in response to breaking the superabsorbent polymer; and a fluid to expand the superabsorbent polymer into the expanded state. The hydraulic fracturing composition can be made by contacting a superabsorbent polymer with a fluid to expand the superabsorbent polymer into an expanded state; and disposing a plurality of proppant particles in the superabsorbent polymer to make the hydraulic fracturing composition. A process for disposing a plurality of proppant particles in a fracture comprises: disposing a hydraulic fracturing composition in a downhole environment; forming a fracture in the downhole environment; disposing the hydraulic fracturing composition in the fracture; breaking the superabsorbent polymer after forming the fracture; and releasing the plurality of proppant particles from superabsorbent polymer to dispose the plurality of proppant particles in the fracture. | 11-13-2014 |
20140332214 | HYDRAULIC FRACTURING COMPOSITION, METHOD FOR MAKING AND USE OF SAME - A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state; a plurality of proppant particles disposed in the superabsorbent polymer; an additive comprising a surfactant, a viscose polymer, or a combination thereof, and a fluid to expand the superabsorbent polymer into the expanded state. A process for disposing a plurality of proppant particles in a fracture comprises: disposing a hydraulic fracturing composition in a downhole environment; forming a fracture; disposing the hydraulic fracturing composition in the fracture; breaking the superabsorbent polymer after forming the fracture; and releasing the plurality of proppant particles from superabsorbent polymer. The process also comprises injecting a proppant-free fluid and a proppant-containing fluid in an alternating order into a subterranean formation. | 11-13-2014 |
20150041139 | Well Treatment Fluids and Methods - A well treatment fluid includes an aqueous-based fluid, a crosslinked CMHEC polymer, and a crosslinker. The CMHEC polymer exhibits a DS of 0.2 to 0.6 and a MS of 2.0 to 2.5. The well treatment fluid exhibits a viscosity of at least about 100 cP. A well treatment method includes crosslinking a CMHEC polymer in an aqueous-based fluid at a pH of at least about 6. The crosslinking increases a viscosity of the well treatment fluid to at least about 100 cP. A well is treated with the well treatment fluid at a temperature of at least about 200° F. Another well treatment method includes forming a well treatment fluid from produced water that has a TDS content of at least about 150,000 ppm. The crosslinking increases a viscosity of the well treatment fluid to at least about 100 cP. | 02-12-2015 |
20150053409 | Delayed Viscosity Well Treatment Methods and Fluids - A well treatment method includes forming a well treatment fluid by combining ingredients including a polymer, a crosslinker, an acidifying substance, and a base fluid. Crosslinking increases viscosity of the fluid during a development time. A pH decrease is controlled during the development time using the acidifying substance. The method also includes delaying the development time of the viscosity increase by controlling the pH decrease. A well treatment method includes forming a well treatment fluid by combining ingredients including a hydratable polymer, a crosslinker, an acidifying substance, and a base fluid. The method includes delaying development time of a viscosity increase by controlling a pH decrease without adding further acidifying substance after combining the polymer, crosslinker, acidifying substance, and base fluid. A well treatment fluid formulated with ingredients include a base fluid, a polymer, a crosslinker, and an acidifying substance. The acidifying substance is configured to delay development time. | 02-26-2015 |