Preventing plugging by insoluble salts in a...

Details Preventing plugging by insoluble salts in a... Preventing plugging by insoluble salts in a...

E - Fixed Constructions

21

B

166/33

E21B 43/25 (2006.01) C09K 8/528 (2006.01)

Patent

CA 1282685

Docket 860025-A PREVENTING PLUGGING BY INSOLUBLE SALTS IN A HYDROCARBON-BEARING FORMATION AND ASSOCIATED PRODUCTION WELLS Abstract Plugging in fluid passageways of a subterranean hydrocarbon- bearing formation or associated production wells caused by the accu- mulation of insoluble salt precipitates therein which results from an in situ interaction between precipitate precursor ions in an injection water and resident ions already occurring in the formation is prevented by removing the precursor ions from the injection water by a reverse osmosis membrane before injecting the water into the formation. RFB/jaa

547748

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