[Faculty] Fwd: [CSRC-SDSU COLLOQUIUM]: Effect of Well Trajectory on Two-Phase Flow Behavior in Horizontal Wells

[Jose Castillo]

*DATE: * Friday, October 25th, 2013

*TITLE: * Effect of Well Trajectory on Two-Phase Flow Behavior in
Horizontal Wells

*TIME:*  3:30 PM

*LOCATION: * GMCS 214

*SPEAKER:*  Dr. Carlos Torres. University of Tulsa, Oklahoma

Shale gas and oil have become an increasingly important resource of energy
in the United States since the beginning of this century owing to the
revolutionary developments in drilling and completion of horizontal wells.
It is estimated that shale gas will provide 50% of the natural gas
production by 2035. Moreover, the share of liquid rich hydrocarbons
production from shale plays is constantly increasing.****

Shale gas and oil reservoirs ordinarily have insufficient permeability to
allow a significant amount of fluid flow to a wellbore. In order to produce
shale reservoirs, horizontal or derivate wells are drilled and hydraulic
fractures are performed to improve the formation conductivity. Typically
geologist and reservoir engineers design well trajectory based on gas rate
while drilling. As consequence, horizontals are not horizontal, and results
in different trajectories such as toe-up, toe-down and undulations.****

Well trajectory can significantly affect the gas-liquid flow on the pipes,
increasing or decreasing the conditions for critical flow conditions such
as liquid loading, terrain or severe slugging along the well. These
critical flow conditions can generate different operational problems such
as reductions in well production, interment flow, no-flow, mechanical
fatigue along the completion or surface equipment, and run life decrease of
the artificial lift system. In order to evaluate and analyze the horizontal
wells performance, the characterization of two-phase flow behavior is a key
feature.

*HOST:*  Dr. Jose Castillo

For future events, please visit our website at:

http://www.csrc.sdsu.edu/colloquium.html



-- 

Jose E. Castillo  Ph.D.

Director / Professor

Computational Science Research Center

5500 Campanile Dr

San Diego State University

San Diego CA 92182-1245

619 5947205/3430, Fax 619-594-2459

 http://www.csrc.sdsu.edu/mimetic-book/

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