High-integrity pressure protection system christmas tree
AssigneeCameron International Corporation
InventorDeclan Elliott
Life of this patent
Estimating the term…
Abstract
A high-integrity pressure protection system Christmas tree is provided. In one embodiment, an apparatus includes a Christmas tree, a choke coupled to receive fluid from the Christmas tree, and a high-integrity pressure protection system. The high-integrity pressure protection system includes pressure sensors downstream of the choke, valves upstream of the choke, and a logic solver connected to control operation of the valves of the high-integrity pressure protection system that are upstream of the choke. Further, the valves of the high-integrity pressure protection system that are upstream of the choke include at least two valves of the Christmas tree. Additional systems, devices, and methods are also disclosed.
Claims18
An apparatus comprising:
- a Christmas tree;
- a choke coupled to receive fluid from the Christmas tree;
- and
- a high-integrity pressure protection system including pressure sensors downstream of the choke, valves upstream of the choke, and a logic solver connected to control operation of the valves of the high-integrity pressure protection system that are upstream of the choke, wherein the valves of the high-integrity pressure protection system that are upstream of the choke include at least two valves of the Christmas tree.
An apparatus comprising:
- a distributed high-integrity pressure protection system including:
- a plurality of pressure sensors of the distributed high-integrity pressure protection system, wherein the plurality of pressure sensors is connected to measure pressure downstream of a choke;
- and
- a plurality of valves of the distributed high-integrity pressure protection system, wherein the plurality of valves is connected to control flow upstream of the choke;
- and
- a controller of the distributed high-integrity pressure protection system, wherein the controller is configured to control operation of the plurality of valves upstream of the choke based on the pressure measured by the plurality of pressure sensors downstream of the choke.
A method comprising:
- coupling pressure sensors of a high-integrity pressure protection system to a fluid conduit downstream of a Christmas tree so as to allow monitoring of fluid conduit pressure downstream of the Christmas tree with the pressure sensors of the high-integrity pressure protection system;
- coupling a logic solver of the high-integrity pressure protection system to the pressure sensors of the high-integrity pressure protection system;
- and
- incorporating valves of the Christmas tree as part of the high-integrity pressure protection system by coupling the valves to the logic solver of the high-integrity pressure protection system so as to allow the logic solver of the high-integrity pressure protection system to control operation of the valves based on the monitored fluid conduit pressure downstream of the Christmas tree.
Dependencies are inferred from the claim text.