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US 2006/0142166 A1Published application
Method using particulate chelates to stimulate production of petroleum in carbonate formations
OwnerRonnie Thomasinventor
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Abstract
A method and composition for stimulating petroleum production from carbonate reservoirs by employing chelating agents, such as EDTA, which are in particulate form rather than aqueous solutions of chelating agents. The use of particulate chelants, which are relatively unstable in acidic solutions, results in a stimulation fluid with a very high dissolution capability.
Claims22
A well treatment fluid composition, comprising:
- water and a chelant in particulate form or a salt thereof.
A method of treating a subterranean formation, comprising:
- injecting a well treatment fluid composition comprising a particulate chelant or a salt thereof and water via a wellbore into a subterranean formation.
Dependencies are inferred from the claim text.