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US 6,629,565 B2Granted
Abandonment and retrieval apparatus and method
AssigneeSmith International, Inc.
InventorDanny H. Harrell
Life of this patent
Estimating the term…
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AssigneeSmith International, Inc.
InventorDanny H. Harrell
Estimating the term…
A well abandonment process for cutting and retrieving an offshore well casing, the process comprising: making a trip to the well wherein all of the following steps are performed, the steps comprising: pulling a seal assembly from the wellhead, cutting the casing, griping the casing, and retrieving the seal assembly and cut casing. An apparatus for cutting and retrieving an offshore well casing, the apparatus comprising: a seal assembly retrieval tool for releasing a seal assembly of the well casing, wherein the seal assembly retrieval tool is connectable to a drill string for suspension from the drill string; a first bumper jar in mechanical communication with the seal assembly retrieval tool; a spear in mechanical communication with the first bumper jar, wherein the spear is engageable with the well casing; a second bumper jar in mechanical communication with the spear; a mud motor in mechanical communication with the second bumper jar; and a casing cutter in mechanical communication with the mud motor, wherein the casing cutter is driven by the mud motor to cut the well casing.
A well abandonment process for cutting and retrieving an offshore well casing, the process comprising:
An apparatus for cutting and retrieving an offshore well casing, said apparatus comprising:
An apparatus for cutting and retrieving an offshore well casing, said apparatus comprising:
Dependencies are inferred from the claim text.