Subsea boosting cap system
OwnerPaulo Cezar Silva Pauloinventor
Life of this patent
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Abstract
A subsea boosting cap system is disclosed. The system comprises an anchor assembly capable of attaching to the sea floor. The anchor assembly comprises a pump cavity capable of receiving a removable pump assembly. A valve system is attached to the anchor assembly. The valve system comprises an inlet flow path and an outlet flow path. A boosting cap covers the pump cavity. The boosting cap comprises a first flow path configured to provide fluid communication between the inlet flow path and the removable pump assembly. A second flow path provides fluid communication between the removable pump assembly and the outlet. A crossover flow path provides fluid communication between the inlet flow path and the outlet flow path, the crossover flow path bypassing the pump cavity.
Claims25
An offshore fluid production system, comprising:
- a subsea wellbore at a first position on an ocean floor;
- a subsea boosting cap system positioned in a second position on the ocean floor that is different from the first position, the subsea boosting cap system comprising:
- an anchor assembly capable of attaching to the sea floor, the anchor assembly comprising a pump cavity capable of receiving a removable pump assembly;
- a valve system attached to the anchor assembly, the valve system comprising an inlet flow path and an outlet flow path, the inlet flow path being in fluid communication with the subsea wellbore;
- a boosting cap covering the pump cavity, the boosting cap comprising a first flow path configured to provide fluid communication between an inlet flow path and the removable pump assembly when the removable pump assembly is positioned in the pump cavity, and a second flow path providing fluid communication between the removable pump assembly and the outlet flow path when the removable pump assembly is positioned in the pump cavity;
- and
- a crossover flow path providing fluid communication between the inlet flow path and the outlet flow path, the crossover flow path bypassing the pump cavity, the valve system being capable of directing fluid flow to the first flow path and the crossover flow path;
- and
- a downflow production line in fluid communication with the outlet.
A subsea boosting cap system, comprising:
- an anchor assembly capable of attaching to the sea floor, the anchor assembly comprising a pump cavity capable of receiving a removable pump assembly;
- a valve system attached to the anchor assembly, the valve system comprising an inlet flow path and an outlet flow path, the inlet flow path being capable of fluidly communicating with a subsea wellbore;
- a boosting cap covering the pump cavity, the boosting cap comprising a first flow path configured to provide fluid communication between the inlet flow path and the removable pump assembly when the removable pump assembly is positioned in the pump cavity, and a second flow path providing fluid communication between the removable pump assembly and the outlet when the removable pump assembly is positioned in the pump cavity;
- and
- a crossover flow path providing fluid communication between the inlet flow path and the outlet flow path, the crossover flow path bypassing the pump cavity, the valve system being capable of directing fluid flow to the first flow path and to the crossover flow path.
A method for removing a pump assembly positioned in a pump cavity of a subsea boosting cap system having a crossover flow path that bypasses the pump cavity, the method comprising:
- flowing a production fluid through a boosting cap flow path to a pump assembly;
- stopping the flow of fluid through the pump assembly;
- removing the boosting cap positioned over the pump assembly;
- removing the pump assembly from the pump cavity;
- replacing the boosting cap over the pump cavity;
- and
- flowing the fluid through the crossover flow path while the pump assembly is removed from the pump cavity.
Dependencies are inferred from the claim text.