### Abstract

The production performances of horizontal drainage wells for the degasification of coal seams have been investigated with the aid of a multi-dimensional, two-phase coal seam degasification model. The model is written in rectangular coordinates and can handle a number of horizontal wells and operates in a one-, two-, or three-dimensional mode. The model accommodates multiple horizontal boreholes originating from a common vertical shaft or horizontal boreholes being drilled from the peripheries of the reservoir. In consideration of relatively thin but large lateral extent of coal seams, flow dynamics around a horizontal borehole is described in elliptical flow geometry. The non-linear system of equations generated by the finite-difference approximation are solved fully implicitly using Newton's iteration.

Original language | English (US) |
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State | Published - Dec 1 1986 |

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### All Science Journal Classification (ASJC) codes

- Engineering(all)

### Cite this

*PRODUCTION PERFORMANCE ANALYSIS OF HORIZONTAL DRAINAGE WELLS FOR THE DEGASIFICATION OF COAL SEAMS.*.

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**PRODUCTION PERFORMANCE ANALYSIS OF HORIZONTAL DRAINAGE WELLS FOR THE DEGASIFICATION OF COAL SEAMS.** / Ertekin, T.; Sung, W.; Schwerer, F. C.

Research output: Contribution to conference › Paper

TY - CONF

T1 - PRODUCTION PERFORMANCE ANALYSIS OF HORIZONTAL DRAINAGE WELLS FOR THE DEGASIFICATION OF COAL SEAMS.

AU - Ertekin, T.

AU - Sung, W.

AU - Schwerer, F. C.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - The production performances of horizontal drainage wells for the degasification of coal seams have been investigated with the aid of a multi-dimensional, two-phase coal seam degasification model. The model is written in rectangular coordinates and can handle a number of horizontal wells and operates in a one-, two-, or three-dimensional mode. The model accommodates multiple horizontal boreholes originating from a common vertical shaft or horizontal boreholes being drilled from the peripheries of the reservoir. In consideration of relatively thin but large lateral extent of coal seams, flow dynamics around a horizontal borehole is described in elliptical flow geometry. The non-linear system of equations generated by the finite-difference approximation are solved fully implicitly using Newton's iteration.

AB - The production performances of horizontal drainage wells for the degasification of coal seams have been investigated with the aid of a multi-dimensional, two-phase coal seam degasification model. The model is written in rectangular coordinates and can handle a number of horizontal wells and operates in a one-, two-, or three-dimensional mode. The model accommodates multiple horizontal boreholes originating from a common vertical shaft or horizontal boreholes being drilled from the peripheries of the reservoir. In consideration of relatively thin but large lateral extent of coal seams, flow dynamics around a horizontal borehole is described in elliptical flow geometry. The non-linear system of equations generated by the finite-difference approximation are solved fully implicitly using Newton's iteration.

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M3 - Paper

AN - SCOPUS:0022880494

ER -