High uptake sulfur solvent systems and methods for making and using same

摘要

Compositions for chemically removing sulfur deposits from reservoir formations, production tubing, flow lines, and other production equipment due to the production of sour gas and/or oil including reaction products of diamines and aldehydes at a mole ratio between about 1:1 and about 1:6, and methods for making and using same.

主权项

1. A composition for chemically removing sulfur from the surface of producing formations and production equipment comprising:
at least one diamine/aldehyde reaction product, where the diamine include the diamines have the general formula H2N—R2—NH2, where R2 is selected from the group consisting of a hydrocarbon group of the general formula —(CH2)n—, where n is an integer having a value between about 3 and about 20, an oxyhydrocarbon group of the general formula —((CH2)m)O)nCH2—, where m is an integer having a value between 1 and 3 and n is an integer having a value between about 1 to about 10, a cyclic hydrocarbon group having between about 6 and about 20 carbon atoms, and mixtures or combinations thereof, where a diamine to aldehyde mole ratio of between about 0.9:1.1 and about 1.1:0.9, and where the composition chemically removes sulfur from formation surfaces and production equipment in contact with fluids and/or gases that deposit sulfur on formation surfaces and production equipment.