Chemical flooding and controlled pressure pulse fracturing proce

Details Chemical flooding and controlled pressure pulse fracturing proce Chemical flooding and controlled pressure pulse fracturing proce

1986-05-15

1987-08-04

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166245, 166273, 166299, 166308, E21B 4322, E21B 43263

Patent

active

046839518

ABSTRACT:
The effective permeability of subterranean hydrocarbon bearing formations with respect to surfactant and drive fluid injection processes is enhanced by preceding the surfactant fluid injection step with creation of multiple formation fractures using tailored pressure pulses produced by gas generating propellant canisters disposed in the injection well. Fluid injectivity rates are increased by subsequent fracture extensions provided by repeated steps of generating high pressure gas pulses at selected intervals.

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patent: 4085797 (1978-04-01), Trantham et al.
patent: 4274488 (1981-06-01), Hedges et al.
Keough et al, "Applicability of Tailored Pulse Loading for Gas Well Stimulation", SPE 12837, May 13-15, 1984.
Cuderman et al, "A Proppant-Based Technology for Multiple Fracturing Wellbores to Enhance Gas Recovery: Application and Results in Devonian Shale", SPE 12838, May 13-15, 1984.
Hanson et al, "Multiple Fracture Stimulation Using Controlled Pulse Pressurization", SPE 12839, May 13-15, 1984.

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