Title:

Decline Curve Analysis in a Naturally Fractured Reservoir with a Finite-Conductivity Fault

Authors:

HÈctor Pulido, Fernando Samaniego, Jes?s Rivera and Rodolfo Camacho

Conference:

Stanford Geothermal Workshop

Year:

2003

Session:

Reservoir Engineering

Language:

English

File Size:

314KB

View File:

Abstract:

An analytical solution for constant producing pressure conditions for a well near a nonintersecting finite-conductivity fault, of infinite length in a naturally fractured reservoir, is presented. The solutions for the dimensionless flow rate are based on a model presented by Abaszadeh and Cinco-Ley. In this work the model was extended to include constant producing pressure in infinite systems. Flow along and across the fault plane is considered. It is demonstrated that a graph of for long times produces a straight line with slope -1/4, it is proportional to . Type curves in terms of fault conductivity and diffusivity ratios are presented. Finally, a field pressure-buildup test and production history data from a faulted reservoir that exhibit characteristics predicted by the analytical model are analyzed. The results show that the initial decline could be a key factor in deciding when to change or abandon a well, and for a practical viewpoint, given an initial value to the flow rate, it is important to know the time required to deplete the system composed by the naturally fractured reservoir and the finite conductivity fault.


ec2-13-58-151-231.us-east-2.compute.amazonaws.com, you have accessed 0 records today.

Press the Back button in your browser, or search again.

Copyright 2003, Stanford Geothermal Program: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.


Attend the nwxt Stanford Geothermal Workshop, click here for details.

Accessed by: ec2-13-58-151-231.us-east-2.compute.amazonaws.com (13.58.151.231)
Accessed: Wednesday 24th of April 2024 07:20:59 AM