Wells – Processes – Cementing – plugging or consolidating
Patent
1991-06-27
1993-01-12
Novosad, Stephen J.
Wells
Processes
Cementing, plugging or consolidating
166127, 166133, 166138, 166191, 166387, E21B 2306, E21B 33124, E21B 33138
Patent
active
051782197
ABSTRACT:
A method and apparatus for performing a block squeeze cementing job. The invention provides for perforating the wellbore above and below the desired well formation on a single wireline trip and setting a lower packer on a wireline above the lower perforations. A stinger is positioned in the lower packer, and secondary packer elements on an upper packer are set above the upper perforations. Cementing of the lower perforations is carried out through the lower packer. The secondary packer elements are unset, and the stinger is repositioned adjacent to the upper perforations. Primary packer elements on the upper packer are then set, and the cementing of the upper perforations is carried out through the upper packer and stinger. Setting of the secondary packer elements requires only vertical movement of the tubing string and no rotation. Both cementing steps are carried out on a single tubing trip. The upper packer is retrievable, and the lower packer is of a drillable type. Hydraulic slips may be provided on the upper packer to prevent movement thereof during either cementing operation.
REFERENCES:
patent: 859304 (1907-07-01), Larken et al.
patent: 1248882 (1917-12-01), Mack
patent: 1956694 (1934-05-01), Parrish
patent: 2618340 (1952-11-01), Lynd
patent: 3012611 (1961-12-01), Haines
patent: 3119450 (1964-01-01), Evans
patent: 3163225 (1964-12-01), Perkins
patent: 3189096 (1965-06-01), Phenix
patent: 3339637 (1967-09-01), Holden
patent: 3409085 (1968-11-01), Oliver
patent: 3584684 (1971-06-01), Anderson et al.
patent: 3695352 (1972-10-01), McGill
patent: 4151875 (1979-05-01), Sullaway
patent: 4545431 (1985-10-01), Fore
patent: 4567944 (1986-02-01), Zunkel et al.
patent: 4569396 (1986-02-01), Brisco
patent: 4590995 (1986-05-01), Evans
patent: 4627491 (1966-12-01), Zunkel
patent: 4928762 (1990-05-01), Manke
Halliburton Services Sales & Service Catalog No. 43, published in 1985, pp. 2561-2565; and 2409-2411.
Paper entitled Tool Combinations Part 4 (undated but admitted to be prior art).
Caskey Kenneth D.
Striech Steven G.
Duzan James R.
Halliburton Company
Kennedy Neal R.
Novosad Stephen J.
LandOfFree
Method and apparatus for performing a block squeeze cementing jo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for performing a block squeeze cementing jo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing a block squeeze cementing jo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1214093