3. A Quick History
Who is Blackstone Analytics anyway?
• Blackstone Analytics, LLC was founded in 2012
• Based in Kerrville, Texas. The heart of the Texas Hill Country.
• Successor of Bolen Consulting, founded in 2000
• Became a Partnership in 2018 (Richard Bolen and Chris Martin)
• Logged over 200 wells in the Delaware and Midland Basins
• Logged the first Rotary Steerable lateral in the Delaware Basin
• Have logged wells in Texas, Louisiana, Mississippi, Oklahoma,
New Mexico, Colorado, and off-shore GOM.
4. Blackstone’s core goal is to provide mudlogging
services that exceed your expectations. We deliver
accurate and detailed mudlogs while also
delivering project enhancing insights to your
directional and geology teams.
• Steering Assistance ensures a watchful eye on
gamma and inclination, even when you are in
meetings or asleep. We serve as an early warning
system for directional services, leading to more
footage in target.
• Relationships are built with all rig personnel,
allowing easy access to nuanced insights of
operations. These are communicated to field
personnel to maximize results.
Our goals
5. Geologist Driven
Blackstone delivers the information you need, allowing you to make accurate
decisions in a timely manner, improving results.
Rig Savvy
• As a small company, everything we do is
custom tailored to you and your needs.
• Our software was selected for maximum
real time insight, allowing us to catch
broken trends or dip changes quickly and
provide insights to directional personnel
immediately.
• Our client is YOU. We act as your
representative on location and ensure your
directives are delivered in person and
accurately.
• With over 30 years of on site experience, we
speak everyone’s job specific language,
fostering free flow of commutation.
• Demanding hiring standards and hands-on
training produces high quality loggers with a
proactive mindset. Usually Graduate level
Geologists.
• As we make our rounds we look for red flags.
Leaks, broken equipment and safety hazards.
• ZERO Lost-Time-Accidents
Different by Design
6. Let’s drill a well… in 6 minutes.
How EXACTLY does Blackstone help your team?
7. Here we see our standard vertical log format.
(All details can be customized as requested)
Working from Left to Right:
ROP and Gamma are paired for easy correlation.
Tops are bold, listing MD, TVD, and Subsea.
Interpretive Lithology follows the character of
gamma curves, providing an accurate
representation of strata.
Sample lithology is delivered in a blocked format
Descriptions are concise, yet insightful.
Red Text Operational Updates are detailed and
helpful when reviewing a well in it’s totality.
Gas curves are scaled for easy reading and
directional data is recorded for every kept survey.
8. It is our responsibility to ensure that company
men, rig crews and directional teams are aware
of upcoming geology events and can plan for
them accordingly.
Blackstone presents expected geology events
during safety meetings and on a continuous
basis during drilling ops.
Preventing a single trip significantly offsets the
cost of our services.
On the log presented, the bit failed and a trip
was unavoidable. On trip events we record
detailed information about the trip; Rig activity,
BHA, Trip Gas, Mud Cut, Flare and any losses or
gains during the trip.
While using this log as correlation in the future,
the trip will catch our eye and we will present
the hazard. Aiding in reduction of trips and down
time on subsequent wells.
9. We’ve successfully drilled into and identified the
top of the Bone Spring Lime. Notice how the
interpretive lithology presents a detailed
representation of the section.
You receive an update via your preferred method
(call/text/email/IM). Can include formation top
information, delta vs prog, ROP, drilling issues, gas
kicks, and any other pertinent information you
request.
Gas volumes have noticeably increased and we’ve
indicated the high gamma shale shows oil cut,
supported by the presence of heavies in the gas
curve.
Blackstone takes this top and projects down to the
directional team’s current landing target depth. If
we see a significant discrepancy, we bring it to your
attention so that you can modify the drilling plan as
needed.
10. We’ve hit the Wolfcamp!
Notice the Interpretive Lithology presenting an
accurate assessment of the transition from bedded
sands to carbonate and carbonaceous shale.
The sands show signs of hydrocarbon loading, as
indicated by the Porosity, Florescence, Cut Strength
and Show Grading spheres in the upper central
section of the log.
Flare height and duration is noted in red, allowing
quick comparison to offset wells.
Gas is very active, with significant spikes labeled to
identify their origin.
U.S.G – Units Survey Gas
U.C.G – Units Connection Gas
U.O.B.G. – Units Off Bottom Gas
11. Let’s take a quick look at the lateral log layout.
Essentially, it’s the vertical log layout, flipped on it’s side with a large
lithology track in the center.
Gamma/ROP/Tops/Mechanical Data/Mud Data are in the uppermost
track.
Centered in the Horizontal Log is the customizable lithology track, with
corresponding TVD, Subsea and MD of the represented section. The well
bore is represented by the Red Line and is derived from entering survey
data. Scale adjustment allows us a “big picture” view during curve ops,
while allowing us to zoom in once landed to focus on fine details of the
target.
Each layer of the lithology track is hand drawn, allowing us to interpret
lithology based on gamma and cuttings, providing an accurate
representation of the section. This aids in our correlations and target
tracking.
Below the lithology track are descriptions, caught samples, survey data,
and gas readings.
12. Here you’ll see the correlation between
gamma readings and how we’ve drawn
layers to match, providing clarity, accuracy,
and the ability to assist in directional
operations.
Green lines (for the purposes of this
document) highlight gamma signatures
and the corresponding lithology change.
As we enter the target laterally, we have a
full target gamma signature to utilize in
correlation.
13. We’ve cut the target and now have a gamma
profile we can use for correlation as we
progress.
We now know that upon landing this target’s
apparent thickness is 9.6 ft, Center of target is
42 counts API, with top and bottom of target
reading ~50 counts.
We would note that the shale above the target
reads low 80’s and shale below the target
reads 90+ counts.
All of this information would be recorded on a
white board in the logging office and then
passed along to the operations geologist,
directional assets and company men.
Pason alarms will be set at 52 counts.
14. Smooth sailing.
A slight increase in gamma counts let
us know our slight up-dip may be
coming to an end, so we confer with
directional and flatten inclination.
We cruise along and see gamma
return to center of target readings.
You get an update that everything is
running great and trends are holding.
15. Shortly after a trip, we encounter a fairly
steep up-dip. 60 counts indicate that we
were already low in the target.
As soon as gamma broke over 70 counts we
alerted the operations geologist and
directional team.
We’ve compared our gamma data and
determined we are in the shale below target.
After verifying our correlation with the ops
geo and geosteer, we visit with the
directional team to discuss exactly where we
are, how much ground needs to be made up
and any lithology related challenges they
may face as they correct course.
Mirrored gamma eventually confirms our
findings and we are back in target 200 ft
later with minimal dogleg.
16. We’ve reached TD!
Upon TD you receive an update on the change in
the rig’s status.
You’ll notice our detailed rig activity report in red
text listing cement volume data, gas data for
every circulating cycle and bit projection survey
data.
A concise “After Action Report” is provided that
provides a quick reference of trips, geo hazards,
the depth and intensity of significant gas events,
drilling fluid loss information, fault crossing
depths, etc.
When drilling near this location in the future, we
print and distribute this AAR so that everyone is
aware of past hazards and actively planning to
mitigate or prepare for them.
17. Liam Kaltenback, Senior Operations Geologist,
Centennial Resource Development, Inc.
Joe Woodske, Operations Geology Manager,
Centennial Resource Development, Inc.
“I strongly recommend Richard Bolen and Blackstone
Analytics to any Operations Geologist who values expertise,
hard work, preparedness and communication.”
“Blackstone Analytics personnel consistently deliver a high
quality product and are very professional. I would recommend
Blackstone for any of your mudlogging needs.”
Ops Geo Recommendations
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