[CCoE Notice] Thesis Defense: Investigation of Well Management on Hydrocarbon Recovery in Reservoirs with Pressure Dependent Permeability

[Grayson, Audrey A]

PETROLEUM ENGINEERING MASTER’S THESIS DEFENSE

Investigation of Well Management on Hydrocarbon Recovery in Reservoirs with Pressure Dependent Permeability
Yan Song
Date: Monday, Aug 7, 2017

Location: ERP 9, room 124
Time: 10:30 am – 12:30 pm

Committee Chair:Dr. Christine Ehlig-Economides

Committee Members:
Dr. Dimitrios G. Hatzignatiou
Dr. Miguel Saldana


Production rate and pressure transient data recorded in multiple transverse fracture horizontal wells (MTFHWs) suggested that well productivity is lost when wells are produced with excessive pressure drawdown. Pressure dependent permeability (PDP) may be a reason for this behavior. Some models suggested that the pressure dependent permeability can result in productivity reversal. These models implied there is an optimum flowing pressure point can lead to the maximum flow rate. The objective of this study is to discover how to quantify the inputs required to manage the well production.
We learned that our simulation model can reproduce productivity reversal behavior. We established that successive buildups must be acquired under different flowing pressure and they distinctly depend on whether the pressure dependent permeability is mainly in the fractures or in the SRV.  Finally, we concluded that a rigorous model applies pressure dependent permeability phenomenon in space and time does not confirm the well management practices proposed in the literature.


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