| 摘要 |
Methods and devices for restoring control of at an offshore oil well (2) following an uncontrolled fluid release after an explosion include lowering through a riser (60) of successive flow restricting inserts (50, 52, 54, or 56) into the oil well (2) to gradually reduce the uncontrolled fluid release. Flow restricting inserts (50, 52, 54, or 56) may be inserted in parallel or in series with each other. Following attachment of the riser (60) to the oil well (2), provisions are made to restore oil production from the well. Flow restricting inserts (50, 52, 54, or 56) may further be used to adjust flow resistance from the oil well (2) in order to optimize oil production. Passages between the riser (60) and the flow restricting inserts (50, 52, 54, or 56) may also be used to form a gas lift in order to maximize production of oil from the oil well (2). |
