Methane hydrate production equipment and method
A system for subsea operations and associated methods are disclosed. The system includes a well adapter to be associated with a production or monitoring well where the well adapter can receive a cap for capping the production or monitoring well and can receive a valve package to allow flow of production fluids therethrough, from the production well to the well adapter.
1 . A system for subsea operations, comprising:
a well adapter to be associated with a production or monitoring well, wherein the well adapter is configured to receive a cap for capping the production or monitoring well, is configured to receive a valve package, and is configured to allow flow of production fluids therethrough, from the production well to the valve package.
2 . The system of claim 1 , further comprising:
one or more of an Xmas tree, a lower riser package (LRP), and an emergency disconnect package (EDP) to form the valve package.
3 . The system of claim 1 , further comprising:
access ports in the well adapter to allow communication equipment, downhole pressure transducers (DHPTs), or monitoring equipment to access the production or monitoring well.
4 . The system of claim 1 , further comprising:
a passthrough feature of the well adapter to allow water to flow independent of gas from a methane hydrate layer of the production or monitoring well.
5 . The system of claim 1 , further comprising:
an alignment frame to form part of the well adapter and to comprise controls for operation by a remotely operated vehicle (ROV).
6 . The system of claim 1 , further comprising:
a wellhead coupler to be part of the well adapter and to sit over a wellhead housing of the production or monitoring well; and
dogs within the wellhead coupler to lock against grooves of an outer diameter of the wellhead housing.
7 . The system of claim 1 , further comprising:
a tubing associated with the well adapter, the tubing to be within a casing hanger of the production or monitoring well.
8 . The system of claim 1 , further comprising:
a tubing hanger to be associated with a wellhead housing of the production or monitoring well, the tubing hanger to receive the well adapter that is stabbed connected using an open water intervention riser system (OWIRS).
9 . The system of claim 1 , further comprising:
a tubing hanger to be associated with the well adapter and with a tubing, the tubing to be within a casing hanger of the production or monitoring well.
10 . A well adapter configured to be associated with a production or monitoring well, the well adapter further configured to receive a cap for capping the production or monitoring well and further configured to receive a valve package to allow flow of production fluids therethrough, from the production well to the valve package.
11 . The well adapter of claim 10 , further comprising one or more of:
access ports in the well adapter to allow communication equipment, downhole pressure transducers (DHPTs), or monitoring equipment to access the production or monitoring well;
a passthrough feature of the well adapter to allow water to flow independent of gas from a methane hydrate layer of the production or monitoring well; or
an alignment frame to form part of the well adapter and to comprise controls for operation by a remotely operated vehicle (ROV).
12 . A method for subsea operations, comprising:
enabling a well adapter to be associated with a production or monitoring well; and
associating a cap or a valve package with the well adapter, the cap to allow capping of the production or monitoring well and the valve package to receive a flow of production fluids there through, from the production well and through the well adapter.
13 . The method of claim 12 , further comprising:
enabling the valve package using one or more of an Xmas tree, a lower riser package (LRP), and an emergency disconnect package (EDP).
14 . The method of claim 12 , further comprising:
enabling access ports in the well adapter to allow communication equipment, downhole pressure transducers (DHPTs), or monitoring equipment to access the production or monitoring well.
15 . The method of claim 12 , further comprising:
providing a passthrough feature of the well adapter to allow water to flow independent of gas from a methane hydrate layer of the production or monitoring well.
16 . The method of claim 12 , further comprising:
providing the well adapter with an alignment frame that comprises controls for operation by a remotely operated vehicle (ROV).
17 . The method of claim 12 , further comprising:
enabling a wellhead coupler to be part of the well adapter and to sit over a wellhead housing of the production or monitoring well; and
providing dogs within the wellhead coupler to lock against grooves of an outer diameter of the wellhead housing.
18 . The method of claim 12 , further comprising:
associating a tubing with the well adapter, the tubing to be within a casing hanger of the production or monitoring well.
19 . The method of claim 12 , further comprising:
associating a tubing hanger with a wellhead housing of the production or monitoring well, the tubing hanger to receive the well adapter that is stabbed connected using an open water intervention riser system (OWIRS).
20 . The method of claim 12 , further comprising:
associating a tubing hanger with the well adapter and with a tubing, the tubing to be within a casing hanger of the production or monitoring well.