Drill pipe installed large diameter casing cementing apparatus a

Details Drill pipe installed large diameter casing cementing apparatus a Drill pipe installed large diameter casing cementing apparatus a

1976-12-17

1979-01-09

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166120, 166187, 166212, 166362, E21B 2300, E21B 33127, E21B 33129, E21B 3314

Patent

active

041333861

ABSTRACT:
A method is disclosed for the cementing of casing in a well. The method involves lowering the casing into the wellbore, installing a device on a conduit and thereafter lowering the installed device and conduit to a predetermined position within the casing. The device is then actuated and fluid pressure is applied to the device to interlock the device with either the casing or an adapter previously inserted in the casing. Continued fluid pressure distends a seal member to isolate two regions of the casing. A cementing operation is then performed followed by closure of the device. Preferably, the conduit may then be retrieved for reuse.
A device is disclosed for cementing a casing within a wellbore. The device includes a body for occupying a substantial portion of the interior of a region of the casing. The body is connectable to a conduit thereabove and has an external hydraulic seal to pack off the casing. The body also has an interlock system to interlock with the casing to prevent upper movement of the device during subsequent cementing operations. Appropriate valving is also present in the device to enable the proper sequential actuation of the seal, interlock system and cementing accessories.

REFERENCES:
patent: 2662599 (1953-12-01), Baker
patent: 2925865 (1960-02-01), Oliver
patent: 3180419 (1965-04-01), Cochran et al.
patent: 3391740 (1968-07-01), Edwards, Jr.
patent: 3503445 (1970-03-01), Cochrum et al.
patent: 3524503 (1970-08-01), Baker
patent: 3768556 (1973-10-01), Baker
patent: 3948322 (1976-04-01), Baker

Affiliated with

Also associated with

Rating

Drill pipe installed large diameter casing cementing apparatus a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill pipe installed large diameter casing cementing apparatus a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill pipe installed large diameter casing cementing apparatus a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1784773