Method and apparatus for transporting unprocessed well streams
AssigneesDen Norske Stats Oljeselskap A.S., ABB Atom AB
InventorIstavan Bencze
Life of this patent
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Abstract
System for the transport of an unprocessed well stream comprising a multiphase, multicomponent mixture over long distances from one or several subsea wells A to a terminal F. The well stream, which is transported in one or several pipelines (10), running via at least one well A and to the terminal F, is supplied transport pressure by means of one or several fluid driven pumps (26) in the vicinity of the wells and/or fluid driven pipeline pumps (27) along the pipelines.
Claims23
A system for the transport of unprocessed well streams comprising at least a single phase, multicomponent mixture from at least one subsea well to a distant fixed terminal comprising:
- (a) at least one fluid driven pump for transporting the well stream, and
- (b) means for pumping the well stream through at least one pipeline running via at least one well to the terminal disposed between the well and the terminal;
- at least one of said fluid driven pumps having a driving portion connected to a drive fluid supply line and an outlet portion discharged into the sea.
A method for the transport of unprocessed well streams comprising a multiphase, multicomponent mixture from a subsea well in a first field having a first pressure to a terminal comprising:
- (a) providing at least one fluid driven pump for transporting the well stream;
- (b) pumping the well stream through at least one pipeline running via at least one well to the terminal;
- and
- (c) driving at least one of the fluid driven pumps by energy from a pipeline stream from a second field having a pressure higher than said first field pressure.
A system for the transport of unprocessed well streams comprising at least a single phase, multicomponent mixture from at least one subsea well in a first field having a first pressure to a distant fixed terminal comprising:
- (a) at least one fluid driven pump for transporting the well stream;
- and
- (b) means for pumping the well stream through at least one pipeline running via at least one well to the terminal disposed between the well and the terminal;
- at least one of the fluid driven pumps having a driving portion connected to a pipeline stream from a second field having a pressure higher than said first field pressure.
A method for the transport of unprocessed well streams comprising a multiphase, multicomponent mixture from a subsea well to a terminal comprising:
- (a) providing at least one fluid driven pump for transporting the well stream;
- (b) pumping the well stream through at least one pipeline running via at least one well to the terminal;
- (c) connecting a driving portion of the fluid driven pump to a drive fluid supply line;
- and
- (d) discharging an outlet portion of the fluid driven pump into the sea.
A method for the transport of unprocessed well streams comprising a multiphase, multicomponent mixture from a first subsea well having a first pressure to a terminal comprising:
- (a) providing at least one fluid driven pump for transporting the well stream;
- (b) pumping the well stream through at least one pipeline running via at least a first well to the terminal;
- and
- (c) driving at least one of the fluid driven pumps by energy from a well stream from a second well having a pressure higher than said first well pressure.
A system for the transport of unprocessed well streams comprising at least a single phase, multicomponent mixture from at least a first subsea well having a first pressure to a distant fixed terminal comprising:
- (a) at least one fluid driven pump for transporting the well stream;
- and
- (b) means for pumping the well stream through at least one pipeline running via at least a first well to the terminal disposed between the well and the terminal;
- at least one of the fluid driven pumps having a driving portion connected to a well stream from a second well having a pressure higher than said first well pressure.
Dependencies are inferred from the claim text.