METHODS AND COMPOSITIONS FOR USE IN OIL AND/OR GAS WELLS

摘要

Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.

主权项

1. A method of treating an oil and/or gas well having a wellbore, comprising:
injecting a fluid comprising an emulsion or microemulsion into the wellbore, wherein the emulsion or microemulsion comprises: water; an alcohol; a solvent comprising a terpene; and a surfactant, wherein the surfactant has a structure as in Formula I: wherein each of R7, R8, R9, R10, and R11 are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, and —CH═CHAr, provided at least one of R7, R8, R9, R10, and R11 is —CH═CHAr; Ar is an aryl group; R12 is hydrogen or alkyl; n is 1-100; and each m is independently 1 or 2.