SUBSEA SYSTEM AND METHOD FOR PROTECTING EQUIPMENT OF A SUBSEA SYSTEM
First Claim
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1. A subsea system comprising:
- a wellbore within a reservoir;
subsea equipment fluidly connected to the wellbore and downstream of the wellbore, wherein the equipment is rated for a maximum pressure that is (a) less than a maximum reservoir pressure and (b) equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment; and
a barrier fluidly connected to the equipment and configured to control the flow of fluid from the wellbore through the equipment, wherein the barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure.
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Abstract
A subsea system comprises a wellbore within a reservoir, equipment downstream of the wellbore, and a barrier connected to the equipment. The equipment is rated for a maximum pressure that is less than a maximum reservoir pressure and equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment. The barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure.
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Citations
20 Claims
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1. A subsea system comprising:
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a wellbore within a reservoir; subsea equipment fluidly connected to the wellbore and downstream of the wellbore, wherein the equipment is rated for a maximum pressure that is (a) less than a maximum reservoir pressure and (b) equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment; and a barrier fluidly connected to the equipment and configured to control the flow of fluid from the wellbore through the equipment, wherein the barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for protecting equipment of a subsea system, the subsea system comprising a wellbore within a reservoir, equipment downstream of the wellbore, wherein the equipment is rated for a maximum pressure that is less than a maximum reservoir pressure and equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment, and a barrier connected to the equipment, wherein the barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure, the method comprising:
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detecting pressure in the subsea system; and closing the barrier if the pressure detected in the subsea system indicates a pressure differential in the subsea system that is greater than a pressure for which the equipment is rated. - View Dependent Claims (19, 20)
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Specification