Coal seam in-situ pyrolysis method
An in-situ pyrolysis and coal seam technology, applied in earth-moving drilling, mining fluids, wellbore/well components, etc., can solve problems such as large heat loss, extremely high requirements on wellbore insulation performance, and unsatisfactory implementation effects, and achieve high efficiency. Transformation, efficient extraction of oil and gas resources, and effective control
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[0023] The technical solution of the patent of the present invention will be clearly and completely described below with reference to the drawings of the patent of the present invention. Obviously, the described embodiments are only a part of the embodiments of the patent of the present invention, rather than all the embodiments. Based on the embodiments in the patent of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the patent of the present invention.
[0024] according to Figure 1-2 As shown, the well structure used as an in-situ coal seam pyrolysis method shown in the embodiment is: including setting ignition wells and water injection wells / drainage wells with N holes, N≥3, with the ignition well as the center, N holes The water injection wells / drainage wells are distributed in a regular polygon state, the sidewall of the ignition well is provided with perforations, and ...
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