C09K8/5086

CURABLE COMPOSITION AND RESIN FOR TREATMENT OF A SUBTERRANEAN FORMATION
20170247607 · 2017-08-31 · ·

Various embodiments disclosed relate to a curable composition and resin for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in a subterranean formation a curable composition. The curable composition can include an epoxy silane monomer, a hardener, and carrier fluid. The curable composition can include an epoxy monomer, an amine silane hardener, and carrier fluid. The method can also include curing the curable composition to form an epoxy silane resin.

Swellable compositions for borehole applications

Compositions that swell on contact with water contain a non-swellable thermoplastic or thermoset polymer and a swellable inorganic compound. In particular, the compositions are suitable for use in subterranean wells such as those used in the oil and gas industry. The polymer may be polypropylene and the inorganic compound may be magnesium oxide.

POWDER COMPRISING HYDROLYZABLE RESIN PARTICLES

A powder comprising hydrolyzable resin particle, containing particles which do not pass through a sieve having an opening size of 500 μm in an amount of 50 mass % or more and having a repose angle of 51° or more. This powder is preferably used as an additive for drilling to enhance the drilling properties of a drilling fluid and improve the retentivity of a fracture extending from a winze.

FAST-HYDROLYZING POLYLACTIDE RESIN COMPOSITIONS

Polylactide resin compositions that exhibit rapid hydrolysis rates and leave small amounts of residuals include a poly(meso-lactide) and a second polylactide. The polylactide resin compositions are useful in applications in which rapid hydrolysis is wanted under mildly to moderately elevated temperatures, such as in certain oil & gas well treatment applications.

DEGRADABLE ALIPHATIC POLYESTER FLUID
20210404287 · 2021-12-30 · ·

Viscous degradable fluids for use in fluid loss control, diversion, gravel packing, fracturing, and acidizing operations, method of preparing the viscous degradable fluids, and methods of using the viscous degradable fluids in subterranean operations are disclosed. At least one aliphatic polyester is dissolved in a solvent comprising triacetin to form a viscous degradable fluid. The viscous degradable fluid can be injected directly into a subterranean formation or mixed with other fluids and/or additives before being injected into the subterranean formation, where it can temporarily block or restrict flow through openings in the formation.

POLYVINYL ALCOHOL-BASED PARTICULATE COMPOSITIONS

Disclosed are particulate compositions comprising particles of a blend of one or more polyvinyl alcohol polymers with one or more aliphatic polyester polymers, wherein such particulate compositions are useful, for example, as plugging agents for treatments applied to a subterranean formation traversed by the borehole of an oil or gas well.

Epoxy-based LCM compositions with controlled viscosity and methods of treating a lost circulation zone of a wellbore

Lost circulation material (LCM) compositions for sealing lost circulation zones in wellbores may include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 micron. The epoxy resin includes at least one of 2,3-epoxypropyl-o-tolyl ether, C12-C14 alkyl glycidyl ether, 1,6-hexanediol diglycidyl ether, butyl glycidyl ether, or cyclohexanedimethanol diglycidyl ether. The epoxy resin can also include bisphenol-A-epichlorohydrin epoxy resin. Methods of treating a lost circulation zone of a wellbore include injecting the LCM compositions into the lost circulation zone and curing the LCM compositions, where the LCM compositions include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 microns.

Solid shale inhibitor additives

Solid shale inhibitor additives and methods of using such additives to, for example, inhibit shale are provided. In some embodiments, such methods include providing an aqueous treatment fluid that includes an aqueous base fluid and a solid shale inhibitor additive, the solid shale inhibitor additive including carrier particles and a treatment composition that includes a shale inhibitor; and introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation.

Methods of altering the wettability of surfaces to enhance hydrocarbon production

A method of reducing water saturation onto surfaces exposed to hydrocarbons during the production of hydrocarbons from subterranean formations by altering the wettability of the surface of the formation with surface modified nanoparticles.

Loss circulation material composition having alkaline nanoparticle based dispersion and water soluble hydrolysable ester

A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion and an ester activator. The alkaline nanosilica dispersion and the ester activator may form a gelled solid after interaction over a contact period. Methods of lost circulation control using the LCM are also provided.