Wells – Processes – With indicating – testing – measuring or locating
Patent
1980-09-02
1983-01-11
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
73152, 250256, E21B 4700, E21B 4705, G01V 500
Patent
active
RE0311227
ABSTRACT:
A method is disclosed for the in situ examination of earth formations penetrated by a borehole to ascertain the optimum location along the length thereof for instituting well stimulation operations or, where the well is cased, the optimum location for perforating the casing. The method utilizes natural gamma ray logging to determine the optimum locations with the natural gamma ray radiation of the earth formation surrounding the borehole measured and the total measurement then separated into potassium-40, uranium, and thorium energy-band signals. A differential value is derived by subtracting the energy-band signal for either potassium or thorium from the energy-band signal for uranium, with the differential thereafter compared to a energy-level standard having a preselected magnitude. The optimum locations for perforating and/or instituting well stimulation operations will be those zones in which the differential exceeds the preselected energy level standard.
REFERENCES:
patent: 2309835 (1943-02-01), Fearon
patent: 2352433 (1944-06-01), Herzog
patent: 2358574 (1944-09-01), Howell
patent: 2935021 (1960-05-01), Niles
patent: 3016961 (1962-01-01), McKay et al.
patent: 3105149 (1963-09-01), Guitton et al.
patent: 3336476 (1967-08-01), Richardson
patent: 3817328 (1974-06-01), Neuman
patent: 3940610 (1976-02-01), Dennis et al.
patent: 3976878 (1976-08-01), Chevalier et al.
patent: 4071755 (1978-01-01), Supernaw et al.
Fertl Walter H.
Vaello Donald B.
Byron Richard M.
Dresser Industries Inc.
McCollum Patrick H.
Novosad Stephen J.
Suchfield George A.
LandOfFree
Method for ascertaining optimum location for well stimulation an 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 ascertaining optimum location for well stimulation an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for ascertaining optimum location for well stimulation an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-773298