| 摘要 |
A resource is extracted from a subterranean well bore. A drainage well bore is formed in the subterranean coal bed. The drainage well bore has a first cross-sectional diameter, a first end, and a second end. A liner is positioned in the well bore. The liner has a wall including a plurality of apertures and a second cross-sectional diameter that is at least ten percent smaller than the first cross-sectional diameter. A mixture flowing from the second end is collected at the first end. The mixture comprising fluid, a plurality of coal fines, and any resource from the well bore. The well bore is collapsed around the liner after positioning the liner in the well bore.
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