| 摘要 |
A method for enhancing the productive capacity of a primary wellbore (2) containing a conduit string (5) such as casing comprising removing at least a partial section (20) of the casing to provide an aperture (21) therein, setting tubing (22) carrying a guide surface (25) in the vicinity of the aperture (21) and drilling a lateral wellbore (34) at an angle to the primary wellbore (2) using a coiled tubing conveyed drilling assembly (30).
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