Viscous oil recovery using high electrical conductive layers

Details Viscous oil recovery using high electrical conductive layers Viscous oil recovery using high electrical conductive layers

1983-06-30

1988-03-15

Novosad, Stephen J.

Wells

Processes

Electric current or electrical wave energy through earth for...

166302, E21B 4324

Patent

active

047306718

ABSTRACT:
A selectively electrically insulated, cemented and perforated tubular electrode provides a more effective system for electrically heating formations comprised of interbedded high and low electrical conductivity layers. The tubular electrode is located opposite the formation and is exteriorly insulated at an upper part of the formation and perhaps in low part of the formation. A central part of the tubular electrode is left free of electrical insulation. The tubular electrode is cemented in place and perforated at vertically spaced apart points into oil-bearing layers of the formation. The electrode may be a part of a casing string and the casing string specially designed to reduce alternating current hysteresis losses and current losses to the overburden.

REFERENCES:
patent: 3547193 (1970-12-01), Gill
patent: 3946809 (1976-03-01), Hagedorn
patent: 4084639 (1978-04-01), Todd
patent: 4196329 (1980-04-01), Rowland et al.
patent: 4401162 (1983-08-01), Osborne

Affiliated with

Also associated with

Rating

Viscous oil recovery using high electrical conductive layers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Viscous oil recovery using high electrical conductive layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous oil recovery using high electrical conductive layers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1921560