Wells – Processes – With indicating – testing – measuring or locating
Patent
1987-07-16
1989-01-17
Suchfield, George A.
Wells
Processes
With indicating, testing, measuring or locating
166299, 166303, 166308, 102313, 102317, 299 13, E21B 43263
Patent
active
047982446
ABSTRACT:
A high energy gas fracturing tool for radially fracturing a rock formation in a well bore consisting of a cylindrical canister that is holed to pass gas and is for housing a stack of propellant modules that are selected to provide a desired burn rate when ignited. Each propellant module mating face is angled from the horizontal between forty-five (45) to seventy-five (75) degrees, and the modules are bonded together with an epoxy resin wherein propellant or explosive particles are mixed, the resin to exhibit burn characteristics similar to those of the propellant stack. The tool, additional to the propellant containing canister, an ignitor rod and explosive device for igniting the propellant stack, mounts a bull head end over a lower end and a reverse thruster assembly that is connected to the canister upper end. The reverse thruster assembly includes a housing with nozzles formed therein that are angled from the vertical to pass gas on propellant deflagration, creating thereby a force against the tool lifting during propellant burning. Above the reverse thruster assembly is arranged a pressure pulse monitor that is battery powered to operate a pressure transducer for sensing pressure pulses at the tool. The monitor to turn on when a sufficient strength of pressure pulse is received, to store pressure pulses sensed over time, with the stored pressure data retrieved when the tool is removed from the well bore. The recorded pressure pulse data is used for determining the dynamic window of the formation, whereat, at a certain pressure over time the formation will be optimally radially fractured. The tool is suspended from the surface on a wire line and includes a collar locator for locating it at a certain level within the well bore.
REFERENCES:
patent: 1758358 (1930-05-01), Ennis
patent: 4064935 (1977-12-01), Mohaupt
patent: 4081031 (1978-03-01), Mohaupt
patent: 4184430 (1980-01-01), Mock
patent: 4279304 (1981-07-01), Harper
patent: 4391337 (1983-07-01), Ford et al.
patent: 4530396 (1985-07-01), Mohaupt
patent: 4537255 (1985-08-01), Regalbuto et al.
S. A. Makowski, R. E. Dockter, K. R. Sites, Midas Probe Model DP-132, Aug. 18, 1986.
Melius Terry L.
Russell M. Reid
Suchfield George A.
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