Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2008-07-01
2008-07-01
Suchfield, George (Department: 3676)
Wells
Processes
Cementing, plugging or consolidating
C166S304000, C166S308300, C166S308400, C166S312000, C507S265000, C507S267000, C507S905000, C507S928000, C507S929000
Reexamination Certificate
active
07392844
ABSTRACT:
A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a fatty acid ester, such as methyl soyate. The fluid system may further contain a lactic acid ester, such as ethyl lactate, and/or a nonionic surfactant. 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
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