ASSEMBLY AND METHOD FOR PRODUCTION OF GAS OR GAS AND CONDENSATE/OIL
First Claim
1. Underwater placed assembly for production of gas, or gas and condensate/oil, from subsea, gaseous reservoir, wherein at least one production well is provided from the seabed to a production zone and at least one water injection well is provided from the seabed to an injection zone, wherein the assembly comprises:
- a pressure increasing device connected to the outlet from the production well in order to increase the pressure in a production flow from the production well, and a water turbine connected to and driving the pressure increasing device, said water turbine has an inlet for water with a high hydrostatic pressure according to the location of the water turbine and an outlet connected to the inlet of the water injection well, the water turbine driven by and withdrawing at least a part of the hydrostatic energy from the water thus delivered with a lower pressure to the water injection well, so that water thus delivered to the water injection well has a lower pressure than the hydrostatic pressure at the inlet of the water injection well.
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Accused Products
Abstract
An underwater placed assembly produces gas or gas and oil/condensate from a subsea gaseous reservoir, where at least one production well is provided from the seabed to a production zone and at least one water injection well is provided from the seabed to an injection zone. The assembly includes: a pressure increasing device connected to the outlet of the production well in order to increase the pressure in a production flow from the production well, and a water turbine that is connected to and driving the pressure increasing device.
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Citations
10 Claims
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1. Underwater placed assembly for production of gas, or gas and condensate/oil, from subsea, gaseous reservoir, wherein at least one production well is provided from the seabed to a production zone and at least one water injection well is provided from the seabed to an injection zone, wherein the assembly comprises:
a pressure increasing device connected to the outlet from the production well in order to increase the pressure in a production flow from the production well, and a water turbine connected to and driving the pressure increasing device, said water turbine has an inlet for water with a high hydrostatic pressure according to the location of the water turbine and an outlet connected to the inlet of the water injection well, the water turbine driven by and withdrawing at least a part of the hydrostatic energy from the water thus delivered with a lower pressure to the water injection well, so that water thus delivered to the water injection well has a lower pressure than the hydrostatic pressure at the inlet of the water injection well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification