Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
2000-03-28
2000-11-07
Ogden, Necholus
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510365, 510426, 510504, 166311, 166312, 134 40, C11D 1700, E21B 2100, B08B 700
Patent
active
061437093
ABSTRACT:
Well stimulation and purging compositions for enhancing oil and gas production. The compositions include two base solutions which are typically used in combination with each other in well cleanup, well stimulation and formation purging applications. The first base solution is an anionic surfactant characterized by an aqueous solution of ether sulfate, isopropanol anhydrous, ammonium bisulfide, and either potassium chloride or a clay stabilizer formulation. In treatment of oil and gas wells, the solution is capable of reducing surface tension of well fluids and dissipating and dispersing various solids and minerals by dehydrating the well bore and well formation. The composition flocculates and foams the solids, minerals, water and condensate to the well surface. The second base solution is a cationic surfactant characterized by a homogenous aqueous solution of a coco diamine arnido benzyl chloride type quaternary compound, isopropanol anhydrous, ammonium bisulfide, and potassium chloride or a clay stabilizer formulation, which second base solution aids in extracting condensate from wells and dissipates, disperses and retards bacterial growth and buildup of iron sulfide. The first and second base solutions can be applied individually or in combination to the wells in order to clear the water and condensate and significantly enhance total well production by flocculating the water, condensate, solids, bacteria and minerals in the well fluids and foaming these from the well.
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Harrison John M
Ogden Necholus
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