Compositions and methods for treatment of well bore tar

Details Compositions and methods for treatment of well bore tar Compositions and methods for treatment of well bore tar

2007-10-16

2010-02-23

Gay, Jennifer H (Department: 3672)

Wells

Processes

Chemical inter-reaction of two or more introduced materials

C166S250010, C166S305100, C166S312000, C175S040000, C175S065000, C134S022190, C208S390000, C507S090000, C507S118000, C507S125000, C507S224000, C507S231000

Reexamination Certificate

active

07665523

ABSTRACT:
Of the many compositions and methods provided herein, one method includes a method comprising: contacting tar resident in a well bore with a treatment fluid comprising a styrene-acrylate polymer; and allowing the styrene-acrylate polymer to interact with the tar to at least partially reduce the tendency of the tar to adhere to a surface. Another method provided herein includes a method for treating tar sand comprising: contacting the tar sand with a treatment fluid comprising an aqueous fluid and a styrene-acrylate polymer, the tar sand comprising tar and sand; and allowing the styrene-acrylate polymers to interact with the tar to at least partially separate the tar from the sand.

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