Halliburton Energy Services, Inc.

Lalit Pandurang Salgaonkar

Mallikarjuna Shroff Rama

Achala Vasudev Danait

Sumit Ramesh Songire

Prerana Umesh Suryawanshi

Chetan Prakash

Enrique Antonio Reyes

Rahul Chandrakant Patil

Ian D Robb

Ravikant S Belakshe

Prajakta Ratnakar Patil

Shoy Chittattukara George

Anant Kanhoba Ghumare

Julio Estuardo Vasquez Estrada

Marisol Mendez

Sarai Santos

Rahul Vilas Mekade

Breaker fluids for removing polyolefin agglomerations from wellbore equipment and subterranean formations. An example breaker fluid includes an acid, at least one oxidizer, a corrosion inhibitor, a surfactant, an asphaltene remover, a sludging inhibitor, and an aqueous base fluid. The breaker fluid is introduced to wellbore equipment and subterranean formations and breaks down polyolefin agglomerations present therein.

Breaker fluids for removal of polyolefin residue

Methods of enhancing well production, including enhancing fluid flow by conductivity enhancement, diversion, and fluid-loss control, are described. The method of enhancing fluid flow includes introducing a fracturing fluid including resin-coated proppant particles into the formation; introducing (i) a thermosetting composition including one or more di- or tricarboxylic acids and one or more epoxidized fatty acid esters or (ii) thermoset particulates comprising an anhydride network of one or more epoxidized fatty acid esters cross-linked with one or more di- or tricarboxylic acids, into the formation; allowing the resin-coated proppant particles and (i) the thermosetting composition or (ii) the thermoset particulates to form a proppant matrix in a fracture; and allowing voids to form in the proppant matrix.

Degradable thermosetting compositions for enhanced well production

Sealant compositions that may be used for creating fluid flow preventing barriers in a subterranean formation. A method may comprise reacting components comprising an oxazoline functionalized polymer and a crosslinking agent in a subterranean formation to create a barrier in the subterranean formation.

Sealant composition for use in subterranean formations

A subterranean treatment fluid may include an invert emulsion including a clarified diutan-based gelled aqueous internal phase and a mineral oil-based external phase, and an acid composition. The acid composition may include at least one acid selected: formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, and combinations thereof, at least one acid-generating compound selected from: an ester; an aliphatic polyester; an ortho ester; a poly(ortho ester); an ortho ether; a poly(ortho ether); a lactide; a poly(lactide); a glycolide; a poly(glycolide); an &#x3b5;-caprolactone; a poly(&#x3b5;-caprolactone); a hydroxybutyrate; a poly(hydroxybutyrate); an anhydride; a poly(anhydride); an aliphatic carbonate; an aliphatic polycarbonate; an amino acid; a poly(amino acid), and combinations thereof, or a combination of the at least one acid and the at least one acid-generating compound. The subterranean treatment fluid may have a density less than water.

Low density oil external emulsion with gelled internal phase as a gravel packing carrier fluid

Various embodiments disclosed related to methods of treating subterranean formations as well as compositions and systems for performing the same. In various embodiments, the present invention provides a method of treating a subterranean formation that includes obtaining or providing a composition including a compound including at least one silylating group and at least one ammonium group. The method also includes placing the composition in a subterranean formation.

Clay stabilization with control of migration of clays and fines

Consolidation compositions comprising a multipodal silane coupling agent comprising at least two silane groups and at least one amino group; a curable resin; and a resin hardening agent. The curable resin is selected from the group consisting of an epoxy resin, an aliphatic epoxy resin, a glycidylamine epoxy resin, and combinations thereof.

Consolidation compositions comprising multipodal silane coupling agents

Treatment fluids employing stabilized heteropolysaccharide-based gels in brines are used as part of gravel packing and combined gravel packing-fracturing operations; a method includes providing a treatment fluid which includes an aqueous brine base, a heteropolysaccharide including one selected from the group consisting of diutan, scleroglucan, and succinoglycan, and a protein present in an amount sufficient to stabilize the heteropolysaccharide and hence minimizing the salting out phenomenon, the method including placing the treatment fluid in a subterranean formation.

Treatment fluids comprising stabilized heteropolysaccharides and related methods

A delayed acid breaker comprising: an inclusion compound comprising: a host molecule of cyclodextrin; and a guest molecule of an acid precursor, wherein the acid precursor hydrolyzes in water to form an acid, and wherein the acid degrades at least a portion of a filtercake located within a subterranean formation. A method of removing a filtercake from a subterranean formation comprising: introducing the delayed acid breaker into the subterranean formation; and allowing the acid precursor to form the acid after a desired amount of time has elapsed since the introduction of the delayed acid breaker into the subterranean formation.

Delayed acid breaker systems for filtercakes

A persulfate compound activated by a strong base is used for low-temperature breaking of fluids viscosified with one or more water-soluble synthetic polymers, wherein the water-soluble synthetic polymers are selected from the group consisting of polyacrylamides, copolymers of polyacrylamide, derivatives of polyacrylamide or of copolymers of polyacrylamide, and any combination thereof. The breaker system can be used in an oilfield or pipeline application where such a synthetic polymer, a multi-chain polysaccharide, or combination thereof may be present in a fluid. It is particularly useful at low temperatures of less than 100&#xb0; F.

Alkaline persulfate for low-temperature breaking of polymer viscosified fluid

A persulfate compound activated by a strong base is used for low-temperature breaking of fluids viscosified with a multi-chain polysaccharide. The breaker system can be used in an oilfield or pipeline application where a multi-chain polysaccharide may be used in a fluid. It is particularly useful at low temperatures of less than 100&#xb0; F. Optionally, the water can be a brine.

Alkaline persulfate for low-temperature breaking of multi-chain polymer viscosified fluid

A method of treating a portion of a well of a well. The method includes the step of forming a treatment fluid comprising: (i) a continuous aqueous phase; (ii) a viscosity increasing agent selected from the group consisting of diutan, clarified diutan, water-soluble derivative of diutan, and any combination thereof, wherein the viscosity-increasing agent is dissolved in the aqueous phase; and (iii) a breaker comprising oxalic acid, wherein the oxalic acid is dissolved in the aqueous phase. The viscosity of the treatment fluid breaks to less than 3.0 cP in less than 72 hours when in a temperature range of 180&#xb0; F. (82.2&#xb0; C.) to 220&#xb0; F. (104.4&#xb0; C.). The method also includes the steps of introducing the treatment fluid into the portion of the well and flowing back from the portion of the well.

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Pune, India

Lalit Pandurang Salgaonkar