Abstract
This paper identifies the need for the development of specialized solutions for pressure transient analysis in coal seams and, subsequently, provides a comprehensive solution package for these reservoirs. The proposed solutions are applicable to radial systems with finite wellbore radius and with either an infinite outer boundary, a constant pressure outer boundary or a closed outer boundary. At the inner boundary constant pressure or constant terminal rate cases can be specified. The single-phase flow formulation for coalbed methane includes non-equilibrium sorption phenomena in the coal matrix and laminar gas transport in the natural fracture network (cleat system). The transport of methane in the coal matrix is described by using spherical elements. The mathematical models which account for unsteady state and pseudosteady state matrix/fissure methane transfer are incorporated to the transport equation.
| Original language | English (US) |
|---|---|
| Pages | 411-423 |
| Number of pages | 13 |
| State | Published - 1990 |
| Event | Proceedings: SPE Annual Technical Conference and Exhibition 1990 - New Orleans, LA, USA Duration: Sep 23 1990 → Sep 26 1990 |
Other
| Other | Proceedings: SPE Annual Technical Conference and Exhibition 1990 |
|---|---|
| City | New Orleans, LA, USA |
| Period | 9/23/90 → 9/26/90 |
All Science Journal Classification (ASJC) codes
- Fuel Technology
- Energy Engineering and Power Technology