Patent ID: 11972183
Assignee: XECTA INTELLIGENT PRODUCTION SERVICES
Field: Civil engineering (Other fields)
Classification: CPC G  E | IPC E  G

Claim 4:
5. A method of modeling fluid depletion from an unconventional reservoir, comprising:
measuring, via two or more gauges, a tubing head pressure of two or more wells penetrating at least a portion of the unconventional reservoir;
for the two or more wells, determining a bottomhole pressure for the unconventional reservoir based on the tubing head pressure of the two or more wells, one or more fluid properties of a fluid in the unconventional reservoir, and a well production volume for the two or more wells;
for the two or more wells, determining a drainage volume and a reservoir pressure depletion based, at least in part, on the bottomhole pressure for the unconventional reservoir;
for the two or more wells, determining, using an optimization routine, a transient well performance for the unconventional reservoir based, at least in part, on the drainage volume and reservoir pressure depletion;
determining a Productivity Index (PI) for the unconventional reservoir, based, at least in part, on the transient well performance for the two or more wells; and
determining whether to develop a field comprising the unconventional reservoir based, at least in part, on the PI and the bottomhole pressure.