Disclosed herewith is a method of providing N-hydroxycarboxamide compound-based metabolic inhibitor composition, which has demonstrated efficacy for inhibiting sulfide production, under anaerobic conditions. This composition is suitable for use in downhole, drilling and exploration application environments and other harsh environment applications, including mining, industrial extraction of metals and sewage treatment, as well as non-harsh environment applications.

A composition for efficient metal chelation includes (i) a primary chelant; (ii) a coordination enhancing additive; and (iii) a solvent. A wellbore servicing fluid includes (i) a primary chelant; (ii) a coordination enhancing additive; and (iii) a solvent.

A composition for efficient metal chelation includes (i) a primary chelant; (ii) a coordination enhancing additive; and (iii) a solvent. A wellbore servicing fluid includes (i) a primary chelant; (ii) a coordination enhancing additive; and (iii) a solvent.

Composition for the removal or inactivation of hydrogen sulfide or soluble sulfide ion other species comprising ionizable sulfur (e.g., mercaptans, thiols, etc.) using compositions containing acrylate and/or derivatives thereof are provided. Methods for the removal or inactivation of hydrogen sulfide or other sulfur species in oilfield sites and other related applications using compositions containing acrylate and/or derivatives thereof are provided.

The invention provides for the use of a copolymer, comprising a) 0.1 to 10 mol-%, based on the weight of the copolymer, of structural units derived from vinylphosphonic acid or of a salt thereof, b) 40 to 80 mol-%, based on the weight of the copolymer, of structural units derived from compounds of the formula (1)

##STR00001## c) 1 to 50 mol-%, based on the weight of the copolymer, of structural units derived from compounds of the formula (5)

##STR00002##  in which X is OH or NR.sup.3R.sup.4, and R.sup.3 and R.sup.4, independently of one another, are H or C.sub.1-C.sub.4-alkyl,
for the inhibition and/or dispersion of inorganic sulphide scales, and for a process for the inhibition and/or dispersion of inorganic sulphide scales, the process comprising adding to water being within an oil or gas containing formation said copolymer.

The invention provides for the use of a copolymer, comprising a) 0.1 to 10 mol-%, based on the weight of the copolymer, of structural units derived from vinylphosphonic acid or of a salt thereof, b) 40 to 80 mol-%, based on the weight of the copolymer, of structural units derived from compounds of the formula (1)

##STR00001## c) 1 to 50 mol-%, based on the weight of the copolymer, of structural units derived from compounds of the formula (5)

##STR00002##  in which X is OH or NR.sup.3R.sup.4, and R.sup.3 and R.sup.4, independently of one another, are H or C.sub.1-C.sub.4-alkyl,
for the inhibition and/or dispersion of inorganic sulphide scales, and for a process for the inhibition and/or dispersion of inorganic sulphide scales, the process comprising adding to water being within an oil or gas containing formation said copolymer.

The present disclosure relates generally to methods of controlling souring in systems, and more specifically to methods of using chlorine oxyanions and inhibitors of (per)chlorate respiration to control souring in a system.

The present disclosure relates generally to methods of controlling souring in systems, and more specifically to methods of using chlorine oxyanions and inhibitors of (per)chlorate respiration to control souring in a system.

Sulfide stress cracking of a metal component may be inhibited by treating the metal component with a mixture comprising at least one organic aldehyde and at least one surfactant. Such metal components may be those suitable for use in a downhole environment, at a well site, in a storage facility, in a transportation infrastructure, in a refinery facility, and any combination thereof where the metal component may be exposed to hydrogen sulfide.

Sulfide stress cracking of a metal component may be inhibited by treating the metal component with a mixture comprising at least one organic aldehyde and at least one surfactant. Such metal components may be those suitable for use in a downhole environment, at a well site, in a storage facility, in a transportation infrastructure, in a refinery facility, and any combination thereof where the metal component may be exposed to hydrogen sulfide.