Wells – Processes – Distinct – separate injection and producing wells
Patent
1992-08-06
1994-05-24
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166 50, 166292, 166295, E21B 33138, E21B 4322
Patent
active
053140192
ABSTRACT:
A method for treating a formation having zones of varying permeabilities to improve the sweep efficiency of a drive fluid through the formation. At least one radial, relative horizontal bore is formed from a relative vertical wellbore and extends outward into a high-permeability zone of said formation. A gelant is injected into said formation through the radial bore(s) and flows into the higher-permeability zones of the formation. After the gelant is in place, the wellbore is shut-in to allow the gelant to set to form a flow-blocking gel in the treated zones of formation. Secondary recovery operations are then resumed and the drive fluid (e.g. water) will now flow through the previously unswept (i.e. less-permeable zones) of the formation.
REFERENCES:
patent: 1816260 (1931-07-01), Lee
patent: 4022279 (1977-05-01), Driver
patent: 4160481 (1979-07-01), Turk et al.
patent: 4249604 (1981-02-01), Frazier
patent: 4397360 (1983-08-01), Schmidt
patent: 4402551 (1983-09-01), Wood et al.
patent: 4410216 (1983-10-01), Allen
patent: 4436165 (1984-03-01), Emery
patent: 4444265 (1984-04-01), Schmidt
patent: 4705431 (1987-11-01), Gadelle et al.
patent: 4722397 (1988-02-01), Sydansk et al.
patent: 4928763 (1990-05-01), Falk
Bruckert, "Horizontal Well Improves Oil Recovery From Polymer Flood", Oil and Gas Journal, Dec. 18, 1989, pp. 35-39.
"Well Productivity Increase from Drain Holes as Measured by Model Studies", Petroleum Transactions, AIME, vol. 204, 1955, pp. 30-33.
SPE 12792 (1984).
SPE/DOE 24190 (1992).
SPE/DOE 24192 (1992).
SPE/DOE 24194 (1992).
Hager Jr. George W.
McKillop A. J.
Mobil Oil Corporation
Suchfield George A.
LandOfFree
Method for treating formations 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 for treating formations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for treating formations will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966793