The table in this section describes actions that lessees must take when certain situations occur during casing and cementing activities. ------------------------------------------------------------------------
(a) Have unexpected formation pressures or Submit a revised casing
conditions that warrant revising your program to the District
casing design, Manager for approval.
(b) Need to increase casing setting depths Submit those changes to the
more than 100 feet true vertical depth District Manager for
(TVD) from the approved APD due to approval.
conditions encountered during drilling
operations,(c) Have indication of inadequate cement (1) Run a temperature
job (such as, but not limited to, lost survey; (2) Run a cement
returns, cement channeling, gas cut mud, evaluation log; or (3) Use
or failure of equipment), a combination of these
techniques.(d) Inadequate cement job, Re-cement or take other
remedial actions as
approved by the District
Manager.(e) Primary cement job that did not Isolate those intervals from
isolate abnormal pressure intervals, normal pressures by squeeze
cementing before you
complete; suspend
operations; or abandon the
well, whichever occurs
first.(f) Decide to produce a well that was not Have at least two cemented
originally contemplated for production, casing strings (does not
include liners) in the
well. Note: All producing
wells must have at least
two cemented casing
strings.(g) Want to drill a well without setting Submit geologic data and
conductor casing, information to the District
Manager that demonstrates
the absence of shallow
hydrocarbons or hazards.
This information must
include logging and
drilling fluid-monitoring
from wells previously
drilled within 500 feet of
the proposed well path down
to the next casing point.(h) Need to use less than required cement Submit information to the
for the surface casing during floating District Manager that
drilling operations to provide protection demonstrates the use of
(i) Cement across a permafrost zone, Use cement that sets before
it freezes and has a low
heat of hydration.(j) Leave the annulus opposite a Fill the annulus with a
permafrost zone uncemented, liquid that has a freezing
point below the minimum
permafrost temperature and
minimizes opposite a
corrosion.------------------------------------------------------------------------ [76 FR 64462, Oct. 18, 2011, as amended at 77 FR 50892, Aug. 22, 2012]
Diverter System Requirements