Control systems and methods for active controlled bottomhole...

Details Control systems and methods for active controlled bottomhole... Control systems and methods for active controlled bottomhole...

2007-02-13

2007-02-13

Tsay, Frank (Department: 3672)

Boring or penetrating the earth

Processes

C175S107000, C175S324000

Reexamination Certificate

active

10936858

ABSTRACT:
Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pressure below or downhole of the device. In embodiments, a control unit controls the APD Device to provide a selected pressure differential at a wellbore bottom, adjacent a casing shoe, in an intermediate wellbore location, or in a casing. In one arrangement, the control system is pre-set at the surface such that the APD Device provides a substantially constant pressure differential. In other arrangements, the control system measures one or more parameters (e.g., wellbore pressure, formation parameters, BHA parameters, etc.) and adjusts an operating parameter of the APD Device to provide a desired pressure differential. Devices such as an adjustable bypass can be used to control the APD Device.

REFERENCES:
patent: 2812723 (1957-11-01), Coberly
patent: 2946565 (1960-07-01), Williams
patent: 3595075 (1971-07-01), Dower
patent: 3603409 (1971-09-01), Watkins
patent: 3677353 (1972-07-01), Baker
patent: 3815673 (1974-06-01), Bruce et al.
patent: 3958651 (1976-05-01), Young
patent: 4022285 (1977-05-01), Frank
patent: 4049066 (1977-09-01), Richey
patent: 4063602 (1977-12-01), Howell et al.
patent: 4091881 (1978-05-01), Maus
patent: 4099583 (1978-07-01), Maus
patent: 4108257 (1978-08-01), Sizer
patent: 4134461 (1979-01-01), Blomsma
patent: 4137975 (1979-02-01), Pennock
patent: 4149603 (1979-04-01), Arnold
patent: 4210208 (1980-07-01), Shanks
patent: 4223747 (1980-09-01), Marais
patent: 4240513 (1980-12-01), Castel et al.
patent: 4291772 (1981-09-01), Beynet
patent: 4368787 (1983-01-01), Messenger
patent: 4436166 (1984-03-01), Hayatdavoudi et al.
patent: 4440239 (1984-04-01), Evans
patent: 4534426 (1985-08-01), Hooper
patent: 4613003 (1986-09-01), Ruhle
patent: 4630691 (1986-12-01), Hooper
patent: 4744426 (1988-05-01), Reed
patent: 4813495 (1989-03-01), Leach
patent: 5150757 (1992-09-01), Nunley
patent: 5168932 (1992-12-01), Worrall et al.
patent: 5355967 (1994-10-01), Mueller et al.
patent: 5651420 (1997-07-01), Tibbitts et al.
patent: 5775443 (1998-07-01), Lott
patent: 6142236 (2000-11-01), Brammer et al.
patent: 6216799 (2001-04-01), Gonzalez
patent: 6276455 (2001-08-01), Gonzalez
patent: 6374925 (2002-04-01), Elkins et al.
patent: 6415877 (2002-07-01), Fincher et al.
patent: 6527513 (2003-03-01), Van Drentham-Susman et al.
patent: 6668943 (2003-12-01), Maus et al.
patent: 6719071 (2004-04-01), Moyes
patent: 6896075 (2005-05-01), Haugen et al.
patent: 7090023 (2006-08-01), Haugen et al.
patent: 2003/0146001 (2003-08-01), Hosie et al.
patent: 0290250 (1988-09-01), None
patent: WO 00/50731 (2000-08-01), None
patent: WO 02/14649 (2002-02-01), None
patent: WO 03/023182 (2003-03-01), None
New Tool Addresses ECD Problem, William Furlow, Offshore, pp. 88, 89, Jun. 2002.
Technologies Manage Well Pressures, Don M. Hannegan, Ron Divine, The American Oil & Gas Reporter, Sep. 2001.
Continuous Circulation Drilling, L.J. Ayling, Maris Int'l Ltd.; J.W. Jenner, Maris Int'l Ltd., H. elkins, Varco Drilling Equipment, this paper prepared for presentaion at the 2002 Offshore Technology Conference, Houston, Texas May 6-9, 2002.

Affiliated with

Also associated with

Rating

Control systems and methods for active controlled bottomhole... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control systems and methods for active controlled bottomhole..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control systems and methods for active controlled bottomhole... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3892069