Wells – Processes – Placing or shifting well part
Patent
1986-09-17
1989-08-29
Novosad, Stephen J.
Wells
Processes
Placing or shifting well part
166158, 166236, 166278, 166387, E21B 4308
Patent
active
048608319
ABSTRACT:
Device combinations and methods for wellbore operations for simplifying production methods and workover operations and for production from a failed secondary zone. Using a commercially available prior art coil tubing unit, a coil tubing string is run into an already-in-place production tubing string. The coil tubing string has a commercially available prior art sand control device at the bottom, a portion of blank pipe and a commercially available prior art releasable hydraulic running and release tool ("hrart"). A commercially available prior art small washpipe is connected to the hrart. Wash fluid flows through the hrart, to the wash pipe, and then out of the washpipe thereby washing the sand control device into place in filter media at the perforated production zone. An isolation packer or packers are set between the production tubing and coil tubing string. The coil tubing string and the upper portion of the running tool with the washpipe attached to it are then disconnected from the remainder of the hrart and removed so that production can begin. Use of a commercially available prior art prepacked double screen sand control filter assembly at the bottom of the coil tubing string partially or wholly encases or isolates the washpipe from formation sands and from solids in the fluids in the wellbore, thereby reducing or eliminating the problems associated with washpipes stuck in screen assemblies. When a secondary production zone has failed, a system according to the present invention can be washed into place through the production tubing into filter media placed at the secondary zone level and new production can be commenced without the need for an expensive and time-consuming fishing operation. To abandon one zone and produce from another using a typical workover procedure can cost as much as ten times more than the use of the system of the present invention.
REFERENCES:
patent: 50967 (1865-11-01), St. John
patent: 58953 (1866-10-01), Osgood
patent: 83901 (1868-11-01), Armstrong
patent: 963549 (1910-07-01), Harmon
patent: 1974664 (1934-09-01), Patten
patent: 2216037 (1940-09-01), Layne
patent: 2321318 (1943-06-01), Reistle
patent: 2356769 (1944-08-01), Layne
patent: 2513944 (1950-07-01), Kessler
patent: 3145778 (1964-08-01), Grekel
patent: 3362475 (1968-01-01), Huitt
patent: 3587740 (1971-06-01), Gerwick
patent: 3791447 (1974-02-01), Smith et al.
patent: 4549608 (1985-10-01), Stowe
patent: 4550778 (1985-11-01), Sullivan
patent: 4552215 (1985-11-01), Almond
patent: 4552216 (1985-11-01), Wilson
patent: 4553595 (1985-11-01), Huang
patent: 4606408 (1986-08-01), Zunkel
patent: 4627496 (1986-12-01), Ashford et al.
patent: 4681163 (1987-07-01), Guidry et al.
patent: 4682657 (1987-07-01), Crawford
patent: 4694901 (1987-09-01), Skinner
N-Situ Technology, Section 3, Baker Sand Control, 1984-1985 Catalog, pp. 23-50, 55-56.
Introduction to Oil Well Service and Workover, published by the University of Texas, p. 23, 1971.
Workover Well Control, by Adams, pp. 4-11.
Well Improvement Specialists B. K. Series, Double Walled Sand Filter.
Rebound, Composite Catalog of Oil Field Equipment and Service, 37th Revision 1986-1987 in 4 volumes, Coiled Tubing Units.
Bowen, Composite Catalog of Oil Field Equipment and Service, 37th Revision 1986-1987 in 4 volumes, Bowen Continuous String Coiled Tubing Units.
Halliburton Services Sales and Service Catalog, 1970-1971, pp. 130-136.
Casing Hardware and Oilfield Service Tools, Dowell, 1982-1983 Composite Catalog, pp. 2520-2523.
Melius Terry Lee
Novosad Stephen J.
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