Method of opening carbon-bearing beds with production wells for

Details Method of opening carbon-bearing beds with production wells for Method of opening carbon-bearing beds with production wells for

1975-04-22

1977-01-18

Novosad, Stephen J.

Boring or penetrating the earth

Processes

Boring with specific fluid

166254, 175 65, 166285, E21B 2100, E21B 3314, E21B 4704

Patent

active

040034410

ABSTRACT:
Disclosed is a method of opening carbon-bearing beds with production wells for underground gasification wherein a production well is drilled until the top of a bed is opened up. As soon as the drilling tool enters the upper layer of the bed, the drilling is ceased and the depths of both the top and bottom of the bed are determined. Next, the drilling is resumed so as to leave a pillar of the bed at a depth where the possibility of communication between the adjacent wells by means of a fluid is assured through the bulk of the bed. On fitting a string of casing pipes in the well, the drilling of the pillar left between the shoe of the casing pipe string and the bottom of the bed goes on.
Unlike the known methods, the method disclosed assures the possibility of drilling production wells in a single run without unnecessary lowering and lifting operations, and also enables an increase in the spacing of production wells, reducing at the same time the consumption of fluid per well sunk.

REFERENCES:
patent: 1978668 (1934-10-01), Burg
patent: 2158198 (1939-05-01), Prescott
patent: 3172487 (1965-03-01), Klotz
patent: 3331438 (1967-07-01), Slusser
patent: 3380532 (1968-04-01), Cook

Affiliated with

Also associated with

Rating

Method of opening carbon-bearing beds with production wells for 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 of opening carbon-bearing beds with production wells for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of opening carbon-bearing beds with production wells for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-67026