Wells – Processes – Producing the well
Patent
1990-04-16
1991-07-23
Dang, Hoang C.
Wells
Processes
Producing the well
166 68, 1661175, 166105, 166370, E21B 4312
Patent
active
050335502
ABSTRACT:
Apparatus and method for the production of methane gas from coalbed methane wells. The apparatus includes a production string having spaced side pocket mandrels supporting gas lift valves and defining with a well casing an annulus in the well running continuously without a packer from a coalbed seam to the wellhead and a lift gas injection line extending through the annulus along the production tubing string and connected into the side pocket mandrel for injecting lift gas into the production tubing string to produce well fluids and lift gas in the tubing string while simultaneously producing coalbed methane gas up the annulus. The method of the invention includes the steps of injecting lift gas through a lift gas injection line to a gas lift valve in a well production tubing string and producing well fluids along with lift gas up the tubing string while producing coalbed methane gas up the annulus.
REFERENCES:
patent: 425624 (1890-04-01), O'Neil
patent: 443513 (1890-12-01), Geiser
patent: 528449 (1894-10-01), Staley
patent: 1547197 (1925-07-01), Arbon
patent: 2080624 (1937-05-01), McMahon
patent: 3050121 (1962-08-01), Garrett et al.
patent: 3116781 (1964-01-01), Rugeley et al.
patent: 3373816 (1968-03-01), Cochran
patent: 3731742 (1973-05-01), Sizer et al.
patent: 4171016 (1979-10-01), Kempton
patent: 4579511 (1986-04-01), Burns
patent: 4682656 (1987-07-01), Waters
patent: 4711306 (1987-12-01), Bobo
patent: 4791990 (1988-12-01), Amani
The article entitled, "Venturi Jet Tool Unloads Gas Wells", World Oil, Nov. 1979, p. 79.
Coats E. Alan
Johnson Kenneth J.
Dang Hoang C.
Otis Engineering Corporation
LandOfFree
Well production method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well production method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well production method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-426779