The subject invention provides compositions comprising solvents and surfactants, as well as their use in improving oil and/or gas production. In some embodiments, the compositions comprise chemical or synthetic solvents and/or surfactants. In other embodiments, the compositions comprise biological components, such as microorganisms and/or their growth by-products. The subject invention can be used to dissolve, disperse and/or emulsify paraffin precipitates and/or deposits; prevent and/or inhibit paraffin deposition; remove rust deposits and prevent corrosion associated therewith; inhibit bacterial growth and/or biofilm formation; and to enhance oil recovery.

A composite particle comprises a core, a shielding layer deposited on the core, and further comprises an interlayer region formed at an interface of the shielding layer and the core, the interlayer region having a reactivity less than that of the core, and the shielding layer having a reactivity less than that of the interlayer region, a metallic layer not identical to the shielding layer and deposited on the shielding layer, the metallic layer having a reactivity less than that of the core, and optionally, an adhesion metal layer deposited on the metallic layer, wherein the composite particles have a corrosion rate of about 0.1 to about 450 mg/cm.sup.2/hour using an aqueous 3 wt % KCl solution at 200° F. An article comprises composite particles, wherein has a corrosion rates of about 0.1 to about 450 mg/cm.sup.2/hour using an aqueous 3 wt % KCl solution at 200° F.

Formation treatment compositions may include a surfactant and an aqueous acid solution or mixture. The surfactant may include one or more of C.sub.6-C.sub.20-fluoroalkylsulfonate, C.sub.6-C.sub.20-alkylarylsulfonate, C.sub.6-C.sub.20-alkylcycloalkylsulfonate, C.sub.6-C.sub.20-arylsulfate, C.sub.6-C.sub.20-alkylphosphonate, C.sub.6-C.sub.20-arylphosphonate, C.sub.6-C.sub.20-alkylpolyetherphosphate, C.sub.6-C.sub.20-alkylpolyetherphosphonate, C.sub.6-C.sub.20-alkylcarboxylate, C.sub.6-C.sub.20-arylcarboxylate, and polyoxyethyleneamine. In the formation treatment compositions, the surfactant may be configured to partially or fully adsorb on a carbonate formation to accelerate the partial dissolution of the formation. Methods of treating a formation may include introducing the formation treatment composition into a wellbore such that that the formation treatment composition contacts the formation.

A composition useful as corrosion inhibitor formulation for application in heavy brine systems, comprising at least one amidoamine; at least one sulfur synergist; at least one phosphate ester. In a preferred embodiment, the composition comprises additionally formulation bonding surfactant; and/or at least one solvent system.

A composition useful as corrosion inhibitor formulation for application in heavy brine systems, comprising at least one imidazoline; at least one sulfur synergist; at least one phosphate ester. In a preferred embodiment, the composition comprises additionally formulation bonding surfactant; and/or at least one solvent system.

Fatty amine compositions made from a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives are disclosed. In another aspect, fatty amidoamines made by reacting a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with an aminoalkyl-substituted tertiary amine are disclosed. The fatty amines or amidoamines are advantageously sulfonated, sulfitated, oxidized, or reduced. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin.

A corrosion inhibiting composition which is a liquid carrier in which is dissolved or dispersed a corrosion inhibitor compound comprising at least one moiety (A) which is an aliphatic, aromatic or mixed aliphatic/aromatic structure containing one or more hetero atoms which are nitrogen, oxygen, phosphorus or sulphur, and also at least one moiety (B) which contains one or more polymerisable groups containing double or triple bonded carbon, with the moieties (A) and (B) directly or indirectly covalently connected together.

Methods for making a low-density gel or composite in a wellbore are provided. An exemplary method includes injecting a sealer component including a low-density material into the wellbore, allowing the sealer component to float to the top of an oil column, injecting an activator component including another low-density material into the wellbore, allowing the activator component to float to the top of the oil column and contact the sealer component, and contacting the sealer component and the activator component to form a gel.

Compositions inhibit corrosion in various commercial settings, such as in a refinery and/or in an oil and gas application. The compositions include at least one fatty acid and at least two amphipathic molecules selected from the group consisting of dodecenyl succinic acid, dimer fatty acid and benzalkonium chloride.

Various embodiments disclosed relate to acidizing compositions and methods of using the same for treatment of subterranean formations, wherein the acidizing compositions comprise an acid; and a compound having a structure chosen from: Formula (I, II), wherein R.sup.1 at each occurrence is independently chosen from —H and substituted or unsubstituted (C.sub.1-C.sub.30)hydrocarbyl, R2 at each occurrence is independently chosen from —CN, CONR.sup.A.sub.2, and —COOR.sup.A, wherein R.sup.A at each occurrence is independently chosen from —H and substituted or unsubstituted (C.sub.1-C.sub.30)hydrocarbyl, R.sup.3 at each occurrence is independently chosen from substituted or unsubstituted (C.sub.1-C.sub.30)hydrocarbyl, a substituted or unsubstituted (C.sub.1-C.sub.10)heterocyclyl, and a (Ci-C3o)hydrocarbyl substituted by a substituted or unsubstituted (C.sub.1-C.sub.10)heterocyclyl and interrupted by 0, 1, 2, or 3 groups independently chosen from -0-, —S—, and substituted or unsubstituted —NH—, and M is a Michael-addition donor.

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