Page 148 - Practical Well Planning and Drilling Manual

Section 2 revised 11/00/bc 1/17/01 12:04 PM Page 124

[ ] Well Programming
2.1.1

General information:

Country, concession, rig, program issue date, and who it is written by
Drilling reporting requirements
General points on safety and inspection requirements
Offset wells used for input
Statement on shallow gas (e.g., whether considered likely to be pre-
sent or not)

Well identification:

Field, block, permit, location coordinates, platform, conductor/slot
number, well number, and well type (exploration, appraisal, devel-
opment, infill, injector, etc.)

Well objectives:

Priority order of objectives (short text); include well objectives as
well as production or exploration
Planned drilling time breakdown (time/depth curve)
Estimated cost breakdown (cost/depth curve and costs by category)

Potential hazards or problems during drilling operations (not specific to
one hole section):

Note any hazards that remain; how to monitor; recovery procedures
if the potential hazard occurs (could be suspected presence of H S
2
or drilling HPHT for instance)
Concurrent operations (e.g., drilling on a platform while production
or construction work is ongoing) would also be a potential hazard
and must be identified with references to safe working procedures

Well positioning:

Surface coordinates (with reference system) and tolerances
Datum level (lowest astronomical tide, mean sea level, etc.)
Rig floor elevation relative to datum level
Water depth

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