Short radius whipstock system

Details Short radius whipstock system Short radius whipstock system

2007-06-19

2007-06-19

Tsay, Frank S. (Department: 3672)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S117500, C166S055000, C166S050000

Reexamination Certificate

active

10755489

ABSTRACT:
A short radius exit from a window milled in casing is possible using a whipstock with a sloping surface in excess of 3.5° and a window mill whose diameter is reduced to a percentage generally below about 95% of the casing inside diameter in a mono-bore or non-through tubing application. The system provides a greater flexibility in choosing the window location and eliminates having to penetrate adjacent formations as compared to previous techniques using a longer exit radius. The decrease in mill diameter, as compared to previous techniques, limits stresses on the milling equipment to minimize equipment failures during window milling and subsequent drilling of the lateral.

REFERENCES:
patent: 2147585 (1939-02-01), Trotter
patent: 2687282 (1954-08-01), Sanders
patent: 2694549 (1954-11-01), James
patent: 4397360 (1983-08-01), Schmidt
patent: 6102123 (2000-08-01), Bailey et al.
patent: 6332498 (2001-12-01), George
patent: 6405804 (2002-06-01), Ohmer et al.
patent: 685628 (1995-12-01), None
patent: WO 03/08754 (2003-10-01), None

Affiliated with

Also associated with

Rating

Short radius whipstock system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Short radius whipstock system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short radius whipstock system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3856951