The section of coating, and method for creating a hole in an underground formation lateral shaft

摘要

1 / 1 Summary u00e2u20acu0153seu00e3u2021u00e3u0192o coating, and mu00e3u2030todo to create a hole in a side pou00e3u2021o formau00e3u2021u00e3u0192o subterru00e3u201aneau00e2u20acufffd a seu00e3u00a7u00e3u00a3o coating comprises: a body comprising a wall; a window in which the window is an opening in the wall of the body; and a The coverage.On the cover: (a) is composed of a material compu00e3u00b3sito; (b) are located in the superfu00e3u00adcie foreign body; (c) to cover the window; and (d) covers at least a distu00e3u00a2ncia enough alu00e3m of peru00e3u00admetro window, so that the seu00e3u00a7u00e3u00a3o of coating has a classificau00e3u00a7u00e3u00a3 The pressu00e3u00a3o desired at the site of the window.A mu00e3todo to create a hole in a pou00e3u00a7o lateral formau00e3u00a7u00e3u00a3o subterru00e3u00a2nea comprises: introducing a column of coating in a bore of pou00e3u00a7o; in which the column coating comprises at least one seu00e3u00a7u00e3u00a3o coating; drill atravu00e3s of at least one of the coverage poru00e3u00a7u00e3u00a3o The fracture inside the column of coating to expose the window; and forming the hole side pou00e3u00a7o adjacent u00e3u00a0 window showsTA.