Removing fracture fluid via chemical blowing agents
Patent
·
OSTI ID:5847920
A method is described for enhancing removal of fracture fluid from a formation or reservoir comprising: (a) placing into a fracturing fluid a chemical blowing agent in an amount sufficient upon decomposition of the agent to create gas sufficient to remove the fracture fluid from the formation where the chemical blowing agent is a member selected from the group consisting of dinitrosopentamethylenetetramine, sodium hydrogen carbonate and p-toluene sulfonyl hydrazide, azodicarbonamide, and p,p-oxybis (benzenesulfonyl hydrazide); (b) fracturing the formation and causing the chemical blowing agent to decompose after completion of the fracturing; and (c) completing the fracturing and decomposing the chemical blowing agent thereby liberating gas in an amount sufficient to remove the fracture fluid from the formation's matrix which enhances production of the fracture fluid from the formation.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4832123
- OSTI ID:
- 5847920
- Country of Publication:
- United States
- Language:
- English
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