| 摘要 |
Hydrocarbons can be recovered from a subterranean reservoir by drilling an injection well bore having an outlet in the reservoir and drilling a production well bore spaced apart from the injection well bore and having an inlet in the reservoir. A drilling tool is capable of being inserted into a well bore to drill a web of channels to form a permeable zone in the reservoir. The drilling tool comprises a drill head adapted to drill a web of channels that radiate out from the well bore to form the permeable zone, and a power source to supply power to the drill head.
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