Patent application number | Description | Published |
20100016182 | METHOD OF TREATING A WELL WITH A GEL STABILIZER - The present invention relates to the use of chalcogen heterocyclic electron donating compounds as thermal decomposition reduction additives for gels used in well treatment fluids such as drilling fluids, fracturing fluids, and well completion and workover fluids. | 01-21-2010 |
20100144560 | METHODS AND COMPOSITIONS FOR REDUCING FLUID LOSS DURING TREATMENT WITH VISCOELASTIC SURFACTANT GELS - Methods and compositions of treating formations using viscoelastic treatment fluids are provided that reduce the amount of fluid loss to the formations due to the lack of polymer backbone in the viscoelastic treatment fluids. The methods and compositions of treating formations include a fluid loss additive that includes a copolymer that includes a hydrophilic monomeric unit and a first anchoring monomeric unit. | 06-10-2010 |
20110028354 | Method of Stimulating Subterranean Formation Using Low pH Fluid Containing a Glycinate Salt - Hydraulic fracturing is conducted by use of a well treatment fluid which contains a guar gum derivative as viscosifying or gelling polymer, an organic zirconate complex of a zirconium metal and an alkanol amine as crosslinking agent and a salt of a hydroxylated glycine as crosslinking delaying agent. The fluid is characterized by a low pH, generally greater than or equal to 3.0 and less than or equal to 5.0. | 02-03-2011 |
20110132604 | METHOD OF USING LIGHTWEIGHT POLYAMIDES IN HYDRAULIC FRACTURING AND SAND CONTROL OPERATIONS - Lightweight polyamide particulates may be used in treatment of subterranean formations, including hydraulic fracturing and sand control methods, such as gravel packing. The polyamide particulates typically have an apparent specific gravity (ASG) between from about 1.05 to about 2.0 and are stable at temperatures up to 500° C. The polyamide particulates may be used in combination with a filler which further serves to increase the strength and temperature stability of the resulting composite. Fracture conductivity may be increased by the placement of the low density polyamide particulates as a partial monolayer. | 06-09-2011 |
20110224111 | BIODEGRADABLE ANIONIC ACID CORROSION INHIBITOR COMPRISING SARCOSINES - An acid treatment composition is provided including an alkyl sarcosinate as corrosion inhibitor and an optional corrosion inhibitor intensifier in an acidic solution. Methods for treating wells with these acid treatment compositions are also provided that help control corrosion of the alloy surfaces used in the wells during the acid treatment. | 09-15-2011 |
20110245114 | WELL SERVICING FLUID - A well servicing fluid formulated with components comprising a friction reducer having at least one polymer unit chosen from acrylamide groups, acrylate groups, sulfo groups, and maleic acid groups; and an anionic surfactant, a cationic surfactant and an aqueous base capable of forming a viscoelastic gel. Methods of making the well servicing fluid and methods of employing the well servicing fluid in a well are also disclosed. | 10-06-2011 |
20120018159 | Polymer Hydration Method - Disclosed is a method of rapidly hydrating a hydratable polymer, which method involves irradiating with radio frequency electromagnetic radiation, a mixture of at least the polymer and an aqueous hydrotreating medium to form a viscosified mixture of at least aqueous hydrotreating medium and hydrated polymer. Related methods of treating a subterranean formation and continuously hydrotreating a subterranean formation are also revealed. | 01-26-2012 |
20120273197 | COMPOSITES FOR CONTROLLED RELEASE OF WELL TREATMENT AGENTS - A well treatment composite which allows for the slow release of one or more well treatment agents into a subterranean formation and/or a wellbore penetrating the formation has a nano-sized calcined porous substrate (adsorbent) of high surface area onto which is applied the well treatment agent. The composites are suitable for use in such well treatment operations as hydraulic fracturing and sand control. | 11-01-2012 |
20130203637 | METHOD OF DELAYING CROSSLINKING IN WELL TREATMENT OPERATION - Crosslinking of a crosslinkable viscosifying agent and a crosslinking agent may be delayed in a well treatment fluid by incorporated within the fluid a glutamic-N,N-diacetic acid salt, such as a glutamic-N,N-diacetic acid sodium salt like tetrasodium glutamate diacetate. The crosslinking agent may be a zirconium containing crosslinking agent like zirconium (IV) acetyl acetonate. The viscosifying agent may be guar or a guar derivative such as carboxyalkyl guars and hydroxyalkylated guars like carboxymethyl guar, hydroxypropyl guar, hydroxyethyl guar, hydroxybutyl guar and carboxymethylhydroxypropyl guar. | 08-08-2013 |