Patent application number | Description | Published |
20080289828 | Methods of Limiting Leak Off and Damage In Hydraulic Fractures - Methods for treating a formation penetrated by a wellbore which improves fluid loss control during treatment. In some aspects, the treatments include preparing an aqueous fluid including one or more water inert degradable polymers and an optional viscosifier, injecting the aqueous fluid into the wellbore at a pressure equal to or greater than the formation's fracture initiation pressure, and thereafter injecting into the wellbore a proppant laden fluid at a pressure equal to or greater than the formation's fracture initiation pressure. The water inert degradable polymer may be a polymer such as an emulsion polymer or a latex polymer. Some methods of the invention use a fluid which may have a normalized leak off coefficient (C | 11-27-2008 |
20090205824 | Polymeric Microspheres As Degradable Fluid Loss Additives In Oilfield Applications - Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation. | 08-20-2009 |
20100181065 | Fluid Loss Additive and Breaking Agent - A system includes a hydraulic fracturing fluid including a polymeric constituent and an additive having particles including poly-vinyl acetate in an amount sufficient to control fluid loss. The system includes a formation of interest having a downhole temperature, and the particles including poly-vinyl acetate have a size and/or shape such that the poly-vinyl acetate hydrolyses at the downhole temperature. The particles may have a size and/or shape such that the particles are deformable at the downhole temperature. The poly-vinyl acetate in the particles may be a part of the particle substrate, a coating on the particles, and/or the entire particle may be poly-vinyl acetate. The poly-vinyl acetate may be included in any portion of the hydraulic fracturing fluid, or only the portion of the hydraulic fracturing fluid that is not proppant laden. | 07-22-2010 |
20110028357 | SYSTEM, METHOD AND APPARATUS FOR ENHANCING WELLBORE TREATMENT FLUID FLEXIBILITY - A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process. | 02-03-2011 |
20110036582 | Solid incorporated reversible emulsion for a fracturing fluid - Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a degradable material, introducing the fluid into a wellbore, and allowing the degradable material to degrade. Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a fluid loss additive, introducing the fluid into a wellbore, and allowing the fluid loss additive to degrade. | 02-17-2011 |
20120145376 | System, Method And Apparatus For Enhancing Wellbore Treatment Fluid Flexibility - A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process. | 06-14-2012 |
20120149606 | System, Method And Apparatus For Enhancing Wellbore Treatment Fluid Flexibility - A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process. | 06-14-2012 |
Patent application number | Description | Published |
20090167302 | Time-Lapsed Diffusivity Logging for Monitoring enhanced Oil Recovery - The use of time-lapsed NMR diffusivity measurements in an observation well is disclosed. The observation well is cased in the zone of interest with non-magnetic and non-conductive casing that is invisible to the NMR tool. Second, because NMR measurements have a dead zone in front of the antenna depending on the spatial variation of the fixed magnet strength, for example about 2.7 inches, a distance between the casing and the formation is reduced to less than the dead zone length by drilling the observation well at small deviation of about 5° and running the casing without centralizers. Both the casing and the pad-type NMR tool will follow the low side of the borehole, ensuring the measurement volume of the NMR tool is inside the formation and beyond the annulus. With the appropriate observation well completion, time-lapse diffusivity measurements with pad-type NMR tools can address several shortcomings in the current practice of monitoring EOR processes that rely upon changes in density and hydrogen index (HI). Various uses of NMR imaging in wells cased with non-metallic casing are also disclosed. | 07-02-2009 |
20110308802 | DEGRADABLE MATERIAL FOR DIFFERENT OILFIELD APPLICATIONS - This invention relates to compositions and methods A method of treating a subterranean formation including forming a fluid comprising zein, and introducing the fluid to a subterranean formation. A method of treating a subterranean formation comprising a wellbore, including introducing a tubular to the wellbore wherein the tubular comprises zein. | 12-22-2011 |
20120247777 | METHODS FOR SUPPLYING A CHEMICAL WITHIN A SUBTERRANEAN FORMATION - The method comprises deploying through a well a substantially longitudinal body comprising at least in part a degradable material able to release a chemical; positioning the longitudinal body at a downhole location from the well; and allowing the degradable material to degrade and the chemical to be released. | 10-04-2012 |
20130105162 | COMPOSITIONS AND METHODS FOR IMPROVING THE TOUGHNESS OF SET CEMENTS | 05-02-2013 |
20130109782 | COMPOSITIONS AND METHODS FOR IMPROVING THE TOUGHNESS OF SET CEMENTS | 05-02-2013 |
20130277047 | Downhole Delivery Of Chemicals With A Micro-Tubing System - A technique utilizes micro-tubing to facilitate performance of a well treatment in which the micro-tubing is deployed for cooperation with a larger tubing, such as a coiled tubing positioned in wellbore. The micro-tubing is used to deliver a separated chemical downhole to modify a property of a treatment fluid used in performing a desired well treatment operation at a desired treatment region along the wellbore. A variety of additional components may be combined with the micro-tubing to further facilitate the treatment application. | 10-24-2013 |
Patent application number | Description | Published |
20130153229 | SYSTEM, METHOD AND APPARATUS FOR ENHANCING WELLBORE TREATMENT FLUID FLEXIBILITY - A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process. | 06-20-2013 |
20130261032 | ADDITIVE FOR SUBTERRANEAN TREATMENT - A method of treating a subterranean formation by forming a treatment fluid that contains at least a non-surface active substituted ammonium containing aminoacid derivative. The treatment fluid may then be introduced to the subterranean formation. | 10-03-2013 |
20130312968 | SUBTERRANEAN TREATMENT FLUID COMPOSITION AND METHOD OF TREATMENT - A thickened composition comprising a polymer, a divalent ions source, water and cement is disclosed. Such composition enables fluid loss reduction and higher gel strength. This may be useful for treating a well for example as a fluid spacer or a scavenger; this may also be used a hydraulic fracturing fluid. | 11-28-2013 |
20140290943 | Stabilized Fluids In Well Treatment - Proppant pillar placement in a fracture with a stabilized slurry treatment fluid. A method of placing a proppant pack by injecting a well treatment fluid comprising proppant and a stabilized slurry, and a slurry destabilizing system to consolidate solids from the slurry, and placing the proppant in the fracture in a plurality of proppant clusters forming pillars spaced apart by fluid flow channels from the formation through the fracture toward the wellbore. Also, a system for implementing the method, and the propped fracture system obtained as a result of placing the proppant pack into the fracture according to the method. | 10-02-2014 |
20140345863 | ELECTROMAGNETICALLY ACTIVE SLURRIES AND METHODS - Electromagnetically active slurries comprising stabilized fluids and methods of using the stabilized, electromagnetically active slurries in fluid flow control and detection. Also, methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore, relating to treatment fluids based on the stabilized, electromagnetically active slurries. | 11-27-2014 |
20140374095 | NANOPARTICLE SLURRIES AND METHODS - Fluids comprising elongated nanoparticles and methods of using the fluids in treating a subterranean formation penetrated by a wellbore are disclosed. | 12-25-2014 |
20150075790 | OILFIELD BIOCIDE - A well treatment fluid comprising a 2-oxo-aldehyde having 3 or more carbon atoms is disclosed herein. Methods to prepare and to utilize the fluid, and to inhibit biological degradation of a well treatment fluid, are also disclosed. | 03-19-2015 |
Patent application number | Description | Published |
20140034320 | HIGH SOLIDS CONTENT FLUID HAVING DEGRADABLE OIL - A fluid comprising a plurality of particulates having an Apollonian particle size distribution dispersed in a carrier fluid optionally comprising a surfactant, the particulates, the carrier fluid, or both comprising a degradable oleaginous fluid. Methods to utilize the fluid are also disclosed. | 02-06-2014 |
20150021022 | ENERGIZED SLURRIES AND METHODS - Energized slurries (including foams) comprising an Apollonian particle mixture and at least one additive selected from the group consisting of viscosifiers, gelling agents and rheological agents. Also, methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore, relating to treatment fluids based on the energized slurries. | 01-22-2015 |
20150096750 | HIGH INTERNAL PHASE RATIO INVERT EMULSION - A water-in-oil type emulsion having a dispersed particle volume fraction of greater than about 60 volume percent, based on the based on the total volume of the emulsion. Methods to produce the emulsion, treatment fluids comprising the emulsion, and uses thereof are also disclosed. | 04-09-2015 |