Well treatment pellets

Wells – Processes – Producing foam or gas in well by foaming or gas producing...

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166310, 166311, 166902, 252180, 252181, 507244, 507264, 507902, 507904, 507939, 510445, E21B 3700, E21B 4102, E21B 4322

Patent

active

061352071

ABSTRACT:
Solid, slowly dispersible well treatment composites are provided which have a sufficiently high melting point to prevent melting of the composite in hot weather. The composites have a low solubility and high specific gravity compared to prior art treatment agents; thus the composites readily sink in well fluids and slowly release treatment ingredients over time, depending on the downhole conditions. The composites include a nonylphenol ethoxylate having at least about 50 moles of ethylene oxide per mole of nonylphenol and a fatty acid amide having from 16-20 carbon atoms. Preferably, the composites further include a weighting agent and active ingredients selected from the group consisting of corrosion inhibitors, scale inhibitors, bactericides, scale converters, foaming agents, and mixtures thereof.

REFERENCES:
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Product Information Sheets for Lonza UNIHIB 106, UNIHIB 305LC and UNIHIB 906 (undated).
Product Information Sheets for Baroid BASF Iconel MP-100, Humko Kemamide, BASF Pluradyne C1 1010, C1 1019, Sherex Adogen 570S, Adogen 560, and Jacam WWT 1902C and WSI 3400 (undated).
Product Information Sheet for Lonza Unihib 905 (undated).
Technical Data Sheet for superphosphoric and polyphosphoric acids Technical Grade CAS No. 8017-16-1 (undated).

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