Production systems for underwater wells

Details Production systems for underwater wells Production systems for underwater wells

E - Fixed Constructions

21

B

E21B 43/017 (2006.01) E21B 33/035 (2006.01) E21B 33/037 (2006.01)

Patent

CA 2082652

2082652 9118182 PCTABS00008 Flowlines (28 and 30) carry oil or gas from a caisson (10), in or partly in a recess in a sea bed (12), to a land station (32) and an umbilical (36) also passes between the caisson and the land station. The lines (28 and 30) and the umbilical serve a number of Christmas tree assemblies (24) in the caisson, these being distributed around a vertical axis of the caisson and supported by a drilling template (22) in the caisson which has been used in the drilling of a corresponding number of wells. A manifold (26) lying on the axis connects all the Christmas trees to the flowlines (28 and 30).

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