05255741 is referenced by 134 patents and cites 15 patents.

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.

Title
Process and apparatus for completing a well in an unconsolidated formation
Application Number
7/806056
Publication Number
5255741
Application Date
December 11, 1991
Publication Date
October 26, 1993
Inventor
Steve L Alexander
Bakersfield
CA, US
Agent
Michael J Mlotkowski
George W Hager Jr
Alexander J McKillop
Assignee
Mobil Oil Corporation
VA, US
IPC
E21B 43/04
E21B 10/34
E21B 10/32
E21B 7/20
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