During meeting for planning operations for scale removal and scale inhibitor squeeze treatment in wells, the possibility of the manifold being partially incrusted with scale raised considering the more critical mixture of water produced. The proposed solution is a method of treatment for removing scale from a manifold. Said method uses the geothermal heating of the exploration reservoir to heat a chemical removal solution (50). Heating is required to ensure the temperature is in a range that is also suitable for conducting the removal reaction, since the distance that the solution travels to the manifold (20) e the low temperature of the underwater environment make the reaction occur inefficiently, as in the case of pre-salt.

During meeting for planning operations for scale removal and scale inhibitor squeeze treatment in wells, the possibility of the manifold being partially incrusted with scale raised considering the more critical mixture of water produced. The proposed solution is a method of treatment for removing scale from a manifold. Said method uses the geothermal heating of the exploration reservoir to heat a chemical removal solution (50). Heating is required to ensure the temperature is in a range that is also suitable for conducting the removal reaction, since the distance that the solution travels to the manifold (20) e the low temperature of the underwater environment make the reaction occur inefficiently, as in the case of pre-salt.

The present disclosure relates, according to some embodiments, to a hydraulic fracturing pump comprising a fluid end assembly, the fluid end assembly comprising a cylinder body configured to receive a respective plunger from a power end; a suction bore configured to house a valve body, a valve seat, and a spring; a suction cap; and a spring retainer, wherein a surface of one or more of the cylinder body, the suction bore, the suction cap, and the spring retaining serves as a cathode, and wherein the fluid end comprises at least one of a plunger anode, a suction cap anode, a spring retainer anode, a valve top anode, a valve seat outer diameter anode, and a valve seat inner diameter anode.

The present disclosure relates, according to some embodiments, to a hydraulic fracturing pump comprising a fluid end assembly, the fluid end assembly comprising a cylinder body configured to receive a respective plunger from a power end; a suction bore configured to house a valve body, a valve seat, and a spring; a suction cap; and a spring retainer, wherein a surface of one or more of the cylinder body, the suction bore, the suction cap, and the spring retaining serves as a cathode, and wherein the fluid end comprises at least one of a plunger anode, a suction cap anode, a spring retainer anode, a valve top anode, a valve seat outer diameter anode, and a valve seat inner diameter anode.

A method for the stimulation of a hydrocarbon-bearing formation, said method comprising the steps of providing a wellbore in need of stimulation; inserting a plug in the wellbore at a location slightly beyond a predetermined location; inserting a perforating tool having an outside surface and a spearhead or breakdown acid composition into the wellbore, wherein said outside surface of said tool is pre-treated prior to downhole insertion with a grease containing a first corrosion inhibitor adapted to eliminate/minimize/reduce the corrosion inflicted upon it by the exposure of the acid for the duration of the fracking or stimulation and wherein said acidic composition comprises a second corrosion inhibitor which reacts with said first corrosion inhibitor to generate a corrosion protective layer onto said surface; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for stimulation; removing the tool from the wellbore; and initiating the fracking of the perforated area using a stimulation fluid. Also disclosed is a corrosion inhibiting compound or composition for use with the acid composition.

A method for the stimulation of a hydrocarbon-bearing formation, said method comprising the steps of providing a wellbore in need of stimulation; inserting a plug in the wellbore at a location slightly beyond a predetermined location; inserting a perforating tool having an outside surface and a spearhead or breakdown acid composition into the wellbore, wherein said outside surface of said tool is pre-treated prior to downhole insertion with a grease containing a first corrosion inhibitor adapted to eliminate/minimize/reduce the corrosion inflicted upon it by the exposure of the acid for the duration of the fracking or stimulation and wherein said acidic composition comprises a second corrosion inhibitor which reacts with said first corrosion inhibitor to generate a corrosion protective layer onto said surface; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for stimulation; removing the tool from the wellbore; and initiating the fracking of the perforated area using a stimulation fluid. Also disclosed is a corrosion inhibiting compound or composition for use with the acid composition.

A novel surfactant composition that comprises of two surfactant components, a solvent, and water. The surfactant composition is added to a fracturing fluid, which is then pumped downhole into a subterranean formation where the novel characteristics of the fracturing fluid lend to improved oil production over the fracturing fluid without the surfactant composition.

The present invention relates to a method for oil and gas well remediation by the creation and use of a bio-derived nano scale complex mixtures, comprising bio-derived solvents and/or surfactants that allows the breaking, dissolving, dispersing and caging of obstructions in oil and gas wells. The charge present on the bio derived nanoscale complex is based on the pH of the well. The invention further reduces the well obstructions to a free-flowing fluid and then encapsulates them in an electrochemical, spherical, globe of protection. The method efficiently removes obstructions from the well to be treated.

The present invention relates to a method for oil and gas well remediation by the creation and use of a bio-derived nano scale complex mixtures, comprising bio-derived solvents and/or surfactants that allows the breaking, dissolving, dispersing and caging of obstructions in oil and gas wells. The charge present on the bio derived nanoscale complex is based on the pH of the well. The invention further reduces the well obstructions to a free-flowing fluid and then encapsulates them in an electrochemical, spherical, globe of protection. The method efficiently removes obstructions from the well to be treated.

Corrosion inhibition compositions and methods useful for inhibiting corrosion are provided. The corrosion inhibition compositions comprise at least one coupling agent and at least one corrosion inhibitor, wherein the at least one coupling agent is at least one of one or more ether amines, one or more ether amine oxides, and at least one combination thereof, and the at least one corrosion inhibitor is at least one selected from one or more thiophosphates, one or more polyphosphate esters, one or more imidazolines, one or more quinolines, one or more alkynols, one or more alkynol derivatives, and at least one combination thereof. The methods for inhibiting corrosion on metal surfaces utilize the disclosed corrosion inhibiting compositions.