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US 2009/0266547 A1Published application
Enzyme enhanced oil recovery (EEOR) for near wellbore treatment of oil and gas with greater than 50% barrel of oil equivalent (BOE) gas production
OwnerJohn L. Gray, Allan R. Hartmaninventors
Life of this patent
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Abstract
Disclosed is a system for injecting an enzymatic fluid composition into a gas or gas and oil near-well bore having a wide temperature range. The enzymatic fluid composition is a treatment for reducing oil deposits, asphaltenes, waxes, scale, or other hydrocarbon materials in a gas well or a combination gas/oil well where the production of gas is greater than 50% on a barrel of oil equivalent (BOE) basis.
Claims17
A method of near-well bore treatment for releasing hydrocarbon deposits for wells comprising;
- one or more enzyme treating fluids wherein said enzyme fluid is oleophilic and said treating fluid is injected into said near-well bore of a reservoir wherein said treating fluid contacts restricting hydrocarbon particulates inhibiting the flow of gas and oil to said near-well bore;
- wherein surface attraction between said hydrocarbon particulates and said wellbore is reduced and said hydrocarbon particulates are subsequently or simultaneously released by said enzyme fluid such that flow restriction of said gas and said oil in the near well bore area is minimized.
Dependencies are inferred from the claim text.