(a) No tubing string shall be placed in service or continue to be used unless such tubing string has the necessary strength and pressure integrity and is otherwise suitable for its intended use.
(b) In the event of prolonged operations such as milling, fishing, jarring, or washing over that could damage the casing, the casing shall be pressure-tested, calipered, or otherwise evaluated every 30 days and the results submitted to the District Manager.
(c) When the tree is installed, you must equip wells to monitor for casing pressure according to the following chart: ------------------------------------------------------------------------
(1) fixed platform the wellhead, all annuli (A, B, C, D,
wells, etc., annuli).(2) subsea wells, the tubing head, the production casing
annulus (A annulus).(3) hybrid * wells, the surface wellhead, all annuli at the surface
(A and B riser annuli).
If the production casing
below the mudline and
the production casing
riser above the mudline
are pressure isolated
from each other,
provisions must be made
to monitor the
production casing below
the mudline for casing
pressure.------------------------------------------------------------------------* Characterized as a well drilled with a subsea wellhead and completed
with a surface casing head, a surface tubing head, a surface tubing
hanger, and a surface christmas tree.
(d) Wellhead, tree, and related equipment shall have a pressure rating greater than the shut-in tubing pressure and shall be designed, installed, used, maintained, and tested so as to achieve and maintain pressure control. New wells completed as flowing or gas-lift wells shall be equipped with a minimum of one master valve and one surface safety valve, installed above the master valve, in the vertical run of the tree.
(e) Subsurface safety equipment shall be installed, maintained, and tested in compliance with Sec. 250.801 of this part. [76 FR 64462, Oct. 18, 2011. Redesignated at 77 FR 50894, Aug. 22, 2012]
Casing Pressure Management