Wells – Processes – Graveling or filter forming
Patent
1991-12-11
1993-10-26
Suchfield, George A.
Wells
Processes
Graveling or filter forming
166 51, 175267, E21B 720, E21B 1032, E21B 1034, E21B 4304
Patent
active
052557413
ABSTRACT:
A process and apparatus for forming a hole within an unconsolidated hydrocarbonaceous fluid-bearing formation, installing a slotted liner and gravel packing the liner in a single trip into the formation. The apparatus includes a drill bit for drilling a pilot hole; a housing mounted above the pilot hole drill bit; means for enlarging a pilot hole, the pilot hole -enlarging means pivotally mounted within the housing and capable of pivoting between a retracted position and an expanded position for enlarging a pilot hole to a diameter larger than the pilot hole and sufficient for gravel packing; a slotted liner having a first end and a second end, the first end joined to the apparatus above the housing; and a drive assembly joined to the second end of the slotted liner.
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Foam Gravel Packing pp. 10-13 SPE Production Engineering Feb. 1990.
Hager Jr. George W.
McKillop Alexander J.
Mlotkowski Michael J.
Mobil Oil Corporation
Suchfield George A.
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