System and method for accessing a well
AssigneeOneSubsea IP UK Limited
InventorsDavid R. June, Venkatesh Bhat, Christopher G. Kocurek
Life of this patent
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Abstract
A system and method for accessing a well, in certain embodiments, includes a production tree, a cap, and a spool including a longitudinal bore configured to receive a tubing hanger. The tubing hanger includes a longitudinal bore configured to transfer product between the spool and the production tree. At least one adjustable fluid barrier is included in the tubing hanger and/or the cap. The adjustable fluid barrier can be used to open and close the longitudinal passage and allow access through the tubing hanger and/or the cap.
Claims72
A system for accessing well, comprising:
- a spool comprising a longitudinal passage;
- a tubing hanger installable and supportable in the spool longitudinal passage and comprising a hanger longitudinal passage through the tubing hanger and an annulus access passage through the tubing hanger;
- and
- fluid barriers within the hanger longitudinal passage and the annulus access passage, the fluid barriers including at least one adjustable barrier within the hanger longitudinal passage to control access to the well and at least two adjustable barriers within the annulus access passage to control access to an annulus below the tubing hanger.
A method for accessing a well, comprising:
- landing a tubing hanger in a spool;
- installing a cap to the spool above the tubing hanger;
- operating an adjustable barrier in the tubing hanger to control access to the well through the tubing hanger from above the tubing hanger;
- and
- operating an adjustable barrier in an annulus access passage in the tubing hanger and a second adjustable barrier in the annulus access passage in the tubing hanger to control access to an annulus below the tubing hanger.
A method for accessing a well, comprising:
- landing a tubing hanger in a spool;
- installing a cap to the spool above the tubing hanger;
- operating an adjustable barrier in the cap to control access to the well through the cap from above the tubing hanger;
- and
- operating an adjustable barrier in an annulus access passage in the tubing hanger and a second adjustable barrier in the annulus access passage in the tubing hanger to control access to an annulus below the tubing hanger.
A method for accessing a well, comprising:
- landing a tubing hanger in a spool;
- installing a cap to the spool above the tubing hanger;
- operating an adjustable barrier in the tubing hanger to control access to the well through the tubing hanger from above the tubing hanger;
- and
- operating an adjustable barrier in an annulus access passage in the cap and a second adjustable barrier in the annulus access passage in the cap to control access to an annulus below the tubing hanger.
A method for accessing a well, comprising:
- landing a tubing hanger in a spool;
- installing a cap to the spool above the tubing hanger;
- operating an adjustable barrier in the cap to control access to the well through the cap from above the tubing hanger;
- and
- operating an adjustable barrier in an annulus access passage in the cap and a second adjustable barrier in the annulus access passage in the cap to control access to an annulus below the tubing hanger.
A method for accessing a well, comprising:
- landing a tubing hanger in a spool;
- operating an adjustable barrier in the tubing hanger to control access to the well through the tubing hanger from above the tubing hanger;
- and
- operating an adjustable barrier in an annulus access passage in the tubing hanger and a second adjustable barrier in the annulus access passage in the tubing hanger to control access to an annulus below the tubing hanger.
Dependencies are inferred from the claim text.