Minimizing formation damage under adverse conditions during gravel pack operations
Patent
·
OSTI ID:6114103
A method is described for minimizing formation damage caused by intrusive fluids prior to a gravel packing operation in loosely consolidated formations penetrated by at least one well comprising: (a) filling the casing of the well with an underbalanced completion fluid; (b) placing within the well a removable packer capable of isolating the space between the casing and the formation from the downhole well pressure; (c) setting through the packer a first tubing suitable for perforating and stabilizing the flow of fluids into the well; (d) perforating the casing; (e) introducing a blocking agent into the formation via the perforations which agent upon solidification is sufficient to minimize formation damage by avoiding the introduction of formation fluids where the agent is a gel; (f) causing the blocking agent to solidify while forming a solidified plug within the well and a solid mass within the adjacent washed out portion of the formation; (g) removing the first tubing from the well; (h) placing within the well a second tubing having a slotted portion therein sufficient to allow gravel packing of the well and the formation; (i) removing the solidified plug from the wellbore along with solidified gel from the washed-out portion of the formation; and (j) placing a gravel pack within the well and the washed-out portion of the formation via the second tubing which consolidates the formation.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4811789
- OSTI ID:
- 6114103
- Country of Publication:
- United States
- Language:
- English
Similar Records
Minimizing formation damage during gravel pack operations
Concentric gravel pack with crossover tool and method of gravel packing
Brine completion and workover fluids. Part 2. Applications, calculations, and engineering guidelines
Patent
·
Tue May 12 00:00:00 EDT 1987
·
OSTI ID:6437706
Concentric gravel pack with crossover tool and method of gravel packing
Patent
·
Tue Aug 30 00:00:00 EDT 1977
·
OSTI ID:5239494
Brine completion and workover fluids. Part 2. Applications, calculations, and engineering guidelines
Journal Article
·
Thu Sep 01 00:00:00 EDT 1983
· Pet. Eng. Int.; (United States)
·
OSTI ID:6931029