A method of servicing a wellbore comprising providing a composition comprising a mutual solvent precursor, an acid precursor, and an aqueous fluid, and contacting the composition with oil wet solids in the wellbore. A method of servicing a wellbore comprising introducing an oil-based fluid into a wellbore, wherein the oil-based fluid forms oil wet solids in the wellbore, contacting the oil wet solids in the wellbore with a composition comprising a mutual solvent precursor; an acid precursor and an aqueous fluid, and allowing the oil wet solids to become water wet. A method of servicing a well bore comprising contacting a composition comprising a formate ester with oil wet solids in the well bore under conditions wherein the formate ester hydrolyzes to release formic acid, wherein the formic acid catalyzes the hydrolysis of additional formate ester, and wherein all or a portion of the formate ester converts at least a portion of the oil- wet solids to water- wet solids.

Compositions and methods for the removal of oil-based filtercakes

A method comprising contacting a zwitterionic surfactant, co-surfactant, and water to form a microemulsifier, and contacting the microemulsifier with an oleaginous fluid under low shear conditions to form a microemulsion. A method comprising introducing a first wellbore servicing fluid comprising at least one oleaginous fluid into a wellbore, wherein the first wellbore servicing fluid forms oil-wet solids and/or oil-wet surfaces in the wellbore, and contacting the oil-wet solids and/or oil-wet surfaces in the wellbore with a second wellbore servicing fluid comprising a zwitterionic surfactant, a co-surfactant, and a brine to form a microemulsion.

Microemulsifiers and methods of making and using same

1.

Methods have been developed for the more or less quantitative study of the surface precipitation reaction as it occurs in Arbacia egg protoplasm.




2.

Various salts retard or inhibit the first stage of the reaction.




3.

The relative effectiveness of the alkaline cations in retarding or inhibiting the reaction is shown by the following series, NH4 〉Na 〉 K 〉Li.




4.

Magnesium has a more powerful retarding action than any of the above-mentioned cations.




5.

Although calcium is essential for the reaction, higher concentrations of calcium ion have exactly the same effect as other cations in retarding or inhibiting it.




6.

The sulphocyanate ion has a greater effect on the reaction than the chloride ion.




7.

Various theoretical possibilities are disscussed. The behavior of the reaction toward cations and anions of neutral salts is similar to that of a basic catalysis in homogeneous systems. It is pointed out that there is good evidence that the effective catalyst of the reaction is a lipase.

Anton Skrabal

Papers

On the kinetics of acid and basic catalysis