Wells – Processes – Separating material entering well
Reexamination Certificate
2006-12-04
2010-12-21
Stephenson, Daniel P (Department: 3676)
Wells
Processes
Separating material entering well
C166S266000, C166S306000, C166S370000
Reexamination Certificate
active
07854261
ABSTRACT:
A method and apparatus of separating, in a production well, water from a water- and hydrocarbon-containing production flow emanating from at least one surrounding production formation; and also of injecting, in the production well, a resulting water-containing liquid into at least one surrounding disposal formation, whilst a resulting hydrocarbon-containing liquid is produced out of the production well. The water-containing liquid is separated from the production flow by using at least one water separation device being exposed to a pressure difference (P1-P2) that sucks water from the production flow and through the water separation device. Said water-containing liquid is thus provided. The water separation device may, for example, comprise at least one hydrophilic and water-permeable material. The pressure difference (P1-P2) may be provided through suitable adjustment of a gas pressure (P3) in a first gas column at a downstream side of the water separation device. The gas within the gas column may be supplied from a gas source at the surface, a gas source in a subsurface formation and/or gas being separated from the well flow.
REFERENCES:
patent: 4241787 (1980-12-01), Price
patent: 4296810 (1981-10-01), Price
patent: 4805697 (1989-02-01), Fouillout et al.
patent: 5296153 (1994-03-01), Peachey
patent: 5913363 (1999-06-01), Paplinski
patent: 6092599 (2000-07-01), Berry et al.
patent: 6691781 (2004-02-01), Grant et al.
patent: 6755251 (2004-06-01), Thomas et al.
patent: 2002/0189807 (2002-12-01), Emanuele et al.
patent: 2003/0047310 (2003-03-01), Thomas et al.
patent: 2003/0080061 (2003-05-01), Underdown et al.
patent: 2006/0037746 (2006-02-01), Wright et al.
patent: 94/13930 (1994-06-01), None
patent: 01/65064 (2001-09-01), None
International Search Report for parent application PCT/NO2006/000456, having a mailing date of Mar. 19, 2007.
Hegre Thor Martin
Woie Rune
Andrus Sceales Starke & Sawall LLP
Shore-Tec Consult AS
Stephenson Daniel P
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