An inhibitor injection spool is provided. The spool includes a segment of pipeline configured to convey crude oil and to couple with a pipeline system conveying crude oil. The spool also includes a valve on a top side or an underside of the segment of pipeline such that an interior of the segment of pipeline is selectively accessible from an exterior of the segment of pipeline. A solid corrosion inhibitor is configured to traverse an interior of the valve and such that it is positioned within the interior of the segment of pipeline such that at least a portion of the solid corrosion inhibitor fluidly contacts the crude oil traversing the segment of pipeline. Two mesh screens are coupled to the interior of the segment of pipeline such that crude oil traversing the segment of pipeline may not bypass either the first or second mesh screens.

An oxide coating composition and a process for enhancing adhesion between a metal conducting layer and an in organic material or polymeric resin material using the oxide coating composition. The process includes the steps of applying the oxide coating composition to the metal conducting layer and bonding the inorganic material or polymeric resin material to the metal conducting layer. The oxide coating composition comprises (a) an alkali; (b) an oxidizing agent; (c) an acid; and (d) a corrosion inhibitor comprising a nitrogen heterocyclic compound;

An aqueous synthetic acid composition for use in oil industry activities comprises lysine and hydrogen chloride in a molar ratio ranging from 1:3 to 1:12.5, preferably from more than 1:5 to 1:8.5. The composition can also further comprise a metal iodide or iodate; an alcohol or derivative thereof. The composition demonstrates advantageous properties over known synthetic acids at temperatures above 90° C. The composition is useful in various oil and gas industry operations. Preferred embodiments of the composition provide substantial advantages in matrix acidizing by increasing the effectiveness of wormholing as compared to conventional mineral acids such as HC1.

An aqueous synthetic acid composition for use in oil industry activities comprises lysine and hydrogen chloride in a molar ratio ranging from 1:3 to 1:12.5, preferably from more than 1:5 to 1:8.5. The composition can also further comprise a metal iodide or iodate; an alcohol or derivative thereof. The composition demonstrates advantageous properties over known synthetic acids at temperatures above 90° C. The composition is useful in various oil and gas industry operations. Preferred embodiments of the composition provide substantial advantages in matrix acidizing by increasing the effectiveness of wormholing as compared to conventional mineral acids such as HC1.

A composition for inhibiting corrosion and/or removing hydrocarbonaceous deposits in oil and gas applications is provided. The composition comprises an iron sulfide dissolver, an organic solvent, and a corrosion inhibitor.

A composition for inhibiting corrosion and/or removing hydrocarbonaceous deposits in oil and gas applications is provided. The composition comprises an iron sulfide dissolver, an organic solvent, and a corrosion inhibitor.

Provided herein is a reductive solution for preventing rouge formation on stainless steel, said solution comprising complexing anions, Fe.sup.2+, and, optionally, one or more pH modifiers. Further provided are methods for manufacturing said solution, methods for prevention of rouge formation on stainless steel surfaces, and related uses of the aforementioned reductive solution.

Provided herein is a reductive solution for preventing rouge formation on stainless steel, said solution comprising complexing anions, Fe.sup.2+, and, optionally, one or more pH modifiers. Further provided are methods for manufacturing said solution, methods for prevention of rouge formation on stainless steel surfaces, and related uses of the aforementioned reductive solution.

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.

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.