Page 206 - Practical Well Planning and Drilling Manual

Section 2 revised 11/00/bc 1/17/01 12:04 PM Page 182

[ ] Well Programming
2.4.1

2.4.1 Overview of a Structured Approach

1 2 3 4 5
Summarize all Identify the Determine how Select bit, Compare actu-
relevant offset best two bit to improve on BHA, parame- al vs. expected
data runs in each the previous ters, and proce- performance
interval or for- best bit run dures. Predict and make rec-
mation expected ommendations
performance.

Update the Examine the Look at the Remember After the
BITREX bits hole section dull bit grad- this is an well, com-
database. summary ings. economic pare actual
Update field and mark Determine decision. vs. expected
information the best and likely causes Which com- performance
notes. second best of major dull bination of and CPF.
Examine runs in each features and bit, BHA, If perfor-
mud logs. interval. how to parameters, mance is
Evaluate improve bit and practices below expec-
wireline logs. selection, should give tations,
Update hole BHA, or the lowest explain pos-
section sum- drilling prac- cost per sible reasons.
mary. tices in order foot? Note ideas
to avoid Should a dif- for further
them on the ferent bit improvement
next run. type (e.g., on the next
From all PDC) be well.
records in considered?
the same for- What overall
mation, ROP and dis-
should a tance should
softer forma- be expected
tion bit be from the best
considered? combina-
tion?

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