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US 5,969,240 AGranted
Methods for determining irreducible water resistivity and estimating oil well reserves
AssigneeCommonwealth Scientific and Industrial Research Organisation
InventorsPeter John Eadington, Mark Lisk, Francis William Krieger
Life of this patent
Estimating the term…
Abstract
A method for determining the resistivity of water in an oil well site that includes rock that is capable of water entrapment, includes the steps of: (a) retrieving a sample of the rock; (b) identifying any entrapped water in the sample; and (c) determining the resistivity of the entrapped water. The so determined resistivity then enables oil reserves to be calculated in the well site.
Claims12
A method for determining the resistivity of water in an oil well site that includes rock that is capable of water entrapment, including the steps of:
- (a) retrieving a sample of the rock;
- (b) identifying any entrapped water in the sample, the entrapped water being irreducible water entrapped as intracrystalline or intragranular inclusions in the sample;
- (c) determining the resistivity of the entrapped water.
Dependencies are inferred from the claim text.