Analogs for Tight Gas Sands (& other Resources)

Analysts may estimate type wells from analogs, particularly if the analog well is producing in boundary dominated flow. However, according to Rushing et al, there must be judicial selection of an analog field.

Geotechnical	Reservoir	Operational
Geological Age	Temperature & Pressure Conditions	Stimulation Methods
Structural History	Permeability and Porosity Range	Well Spacing
Depositional Environment/ Stratigraphy	PVT & related properties	Well design
Lithology, Sedimentary	CSG Permeability / Permeability Anisotropy Permeability Anisotropy	Production Constraints
Heterogeneity: Faults, natural fractures
Continuity

References:

J. A. Rushing, K. E. Newsham; A. D. Perego, J. T. Comisky, & T. A. Blasingame, Beyond Decline Curves: Life-Cycle Reserves Appraisal Using Integrated Work-Flow Process for Tight Gas Sands. SPE 109836