Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2007-06-19
2007-06-19
Suchfield, George (Department: 3676)
Wells
Processes
Cementing, plugging or consolidating
C166S300000, C166S304000, C166S305100, C166S307000, C166S308200, C166S308400, C166S310000, C166S312000, C507S265000, C507S266000, C507S267000, C507S905000, C507S928000, C507S929000, C507S932000, C507S933000
Reexamination Certificate
active
10985458
ABSTRACT:
A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a blend of lactic acid ester, such as ethyl lactate, and a fatty acid ester, such as methyl soyate. The fluid system may be further in the form of a microemulsion that is formed by combining a blend with one or more emulsifiers, an alcohol, and water. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.
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Berry Sandra L.
Cawiezel Kay E.
BJ Services Company
Jones John Wilson
Jones & Smith, LLP
Suchfield George
LandOfFree
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