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- W6186987 abstract "This field trial was a cooperative project with MORANCO of Hobbs, New Mexico. The purpose was to investigate and improve water injectivity into the Grayburg formation at their Rice-Hardin waterflood in Lea County. Our laboratory tests with resrevoir cores indicated that certain chemical treatments had the ability to increase injectivity by slightly more than 20%. These treatments were designed to reduce the oil saturation in a region about 8 to 10 feet out from the injection wellbore. Two of the most promising treatments were selected for the field trial. Rice No. 1 injection well was treated with a surfactant solution, and Hardin No. 3 was treated with an aromatic solvent followed by a surfactant solution. Costs of chemicals were approximately $3000 per well. As a result of these treatments, both wells are taking slightly more water at pressures that are 400 psi less than the before-treatment levels. Since the actual improvement in injectivity is on the order of 30 to 40%, the field treatments apparently worked somewhat better than indicated by the laboratory tests. Based on the encouraging results obtained from the trial, we feel that these concepts can be applied to other waterflood projects and may also have potentialmore » in certain enhanced recovery projects where low injectivity is a problem.« less" @default.
- W6186987 created "2016-06-24" @default.
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- W6186987 date "1982-11-01" @default.
- W6186987 modified "2023-09-27" @default.
- W6186987 title "Improvement of water injectivity in the Hobbs (Grayburg-San Andres) field. Final report" @default.
- W6186987 hasPublicationYear "1982" @default.
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