Permian Basin: After-Closure Analysis for Unconventional Reservoirs and Completion

Speaker: M. Y. Soliman
Speaker M. Y. Soliman
Halliburton Energy Services M. Soliman is Chief Reservoir Engineer with Halliburton at its Houston center. He is also an adjunct professor at the University of Houston. M. Soliman is a Distinguished Member of SPE as well as a licensed professional engineer of the State of Texas. M. Soliman received a ...


Halliburton Energy Services

M. Soliman is Chief Reservoir Engineer with Halliburton at its Houston center. He is also an adjunct professor at the University of Houston. M. Soliman is a Distinguished Member of SPE as well as a licensed professional engineer of the State of Texas.



M. Soliman received a BS in Petroleum Engineering with top honors from Cairo University in 1971. He also earned MS and Ph.D. degrees from Stanford University in 1975 and 1978 respectively.



M. Soliman has written over one hundred and fifty technical papers in fracturing, conformance, well test analysis, diagnostic testing and numerical simulation. He holds sixteen US patents with several pending patents.





Currently he is concentrating on areas of diagnostic testing, re-fracturing and fracturing of unconventional reservoirs. Another important part of his current work involves numerical simulation of fluid flow for hydraulically fractured reservoirs and simulation of conformance processes.




Full Description

Published techniques for after-closure analysis of fracturing data usually assume the presence of a vertical fracture intersecting a vertical well. In addition, these published techniques usually assume that the formation is homogeneous. When the formation is naturally fractured or the well is horizontally intersecting a transverse vertical fracture, those assumptions are obviously violated and the published analysis techniques might not be applicable. Through the use of analytical and numerical solutions and application to actual field data, this paper investigates the analysis of after-closure data for heterogeneous formation, naturally fractured data, CBM, and fractured horizontal well.

This paper briefly reviews the various available techniques for after-closure analysis, pointing out the strengths and weaknesses of each. An analytical solution for injection falloff test for a naturally fractured formation has been developed and is presented. This solution might be used to analyze data for a MiniFrac test in a naturally fractured formation where the fractured has healed. Numerical simulation validated the developed solution for a fracture that has healed. The same numerical simulator was used to expand the solution to a situation where the fracture maintains residual conductivity.

The solution for a MiniFrac test in the case of a transverse fracture is also presented and discussed. Using a numerical simulator, MiniFrac tests are simulated and analyzed for both heterogeneous formations and a fractured horizontal well. Guidelines for analysis of such data have been developed and presented.

Field data are also presented. One case presents a MiniFrac test for a heterogeneous formation. A case for a transverse fracture intersecting a horizontal is also presented and analyzed. A third case for CBM is discussed.

Organizer Steve Guillot

When?

Tue, Nov. 17, 2009
11:30 a.m. - 1 p.m. US/Central

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Where?

Westlake Club
570 Westlake Park Blvd.
Houston, TX 77079
USA

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