Method of determining fracture interference in a hydraulically fractured well
AssigneeEnovate Corp.
InventorOscar Mauricio Molina Ortiz
Life of this patent
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Abstract
A method for quantifying frac hits within a few days using a novel pressure-transient analysis technique called differential pressure-transient analysis (DPTA). Unlike pressure transient analysis (PTA) methods, focused on single-well analyses, DPTA evaluates pressure response from two or more wells simultaneously to (1) determine the existence of frac hits, and (2) determine the degree of interference, defined as the ratio of inter-connected to total number of primary fractures from a given well. The output from (2) can be subsequently used to accurately predict oil and/or gas production rates for infill and offset wells.
Claims9
A method of determining fracture interference in a hydraulically fractured well, comprising:
- a. drilling a target well proximate an existing well;
- b. fracturing the target well;
- c. flowing back the target well;
- d. measuring and collecting sensor data at the target well and the existing well;
- and
- e. quantifying a magnitude of interference between the target well and the existing well by applying an algorithm to the collected sensor data and modeling a quantitative pressure loss at the target well.
Dependencies are inferred from the claim text.