Patent ID: 9551211
Date: 2017-01-24
CPC Classifications: B63B,E21B

Claim:
1. A method for appraising a deepwater well comprising: producing a first quantity of hydrocarbon from an undersea reservoir to a floating vessel at a rate of less than 1000 barrels of oil per day while measuring pressure changes in the undersea reservoir, wherein the first quantity of hydrocarbon is less than 10,000 barrels of oil; offloading the first quantity of hydrocarbon from the floating vessel; producing a second quantity of hydrocarbon from the undersea reservoir to the floating vessel at a rate of less than 1000 barrels of oil per day while measuring pressure changes in the undersea reservoir; and estimating reservoir parameters based upon the measured pressure changes while producing the first and second quantities of hydrocarbon, wherein the reservoir parameters comprise reservoir volumes in place, connectivity, and aquifer strength.