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1/11/2014
Slides excerpted from my upcoming class in Colombus, Ohio on Fracturing.
(There are some slides left out, so the slides may not "flow" from one to the
next).
The word “stage” is used to mean two different things. This
confuses everybody, and it has been this way for at least a
quarter-century.

FRAC REPORTS
• If you work for
an oil company,
you may deal
with frac reports.
• These
documents may
look
complicated, but
don’t despair!

I’ll use “fluid stage” and “perf zone stage.” There is no
standard terminology.
Fluid Stages within
Perf Zone Stage 3
Stage 1: Acid
Stage 2: Pad
Stage 3: 100 Mesh Sand
Stage 4: 70/40 Sand
Stage 5: Flush

Perf Zone Stage 3

Fluid Stage within
Perf Zone Stage 2
Stage 1: Acid
Stage 2: Pad
Stage 3: 100 Mesh Sand
Stage 4: 70/40 Sand
Stage 5: Flush

Perf Zone Stage 2

Fluid Stages within
Perf Zone Stage 1
Stage 1: Acid
Stage 2: Pad
Stage 3: 100 Mesh Sand
Stage 4: 70/40 Sand
Stage 5: Flush

Perf Zone Stage 1

Example reports courtesy of Doug Custer, Cimarex Energy

STAGES

DATA

FRAC REPORT
• Pump schedule is one of the most basic pieces of data
• Stages here are the small “fluid” stages within a larger
“perf zone” stage

PUMP SCHEDULE (for a single perf zone stage)

FRAC REPORT
DATA

FRAC REPORTS

At “toe” of well.

VOLUMES SUMMARY (for all perf zone stages in a
particular well)

FRAC REPORT
Slickwater: water with a little polymer added, but the polymer is not cross-linked to
viscosify it. The main frac fluid in this case. Creates the fracture and carries the sand in.
HCl: Hydrochloric acid. Pumped before pumping the slickwater. Removes debris
from perforation tunnels to improve connection to reservoir.

1

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Deciphering frac job reports

  • 1. 1/11/2014 Slides excerpted from my upcoming class in Colombus, Ohio on Fracturing. (There are some slides left out, so the slides may not "flow" from one to the next). The word “stage” is used to mean two different things. This confuses everybody, and it has been this way for at least a quarter-century. FRAC REPORTS • If you work for an oil company, you may deal with frac reports. • These documents may look complicated, but don’t despair! I’ll use “fluid stage” and “perf zone stage.” There is no standard terminology. Fluid Stages within Perf Zone Stage 3 Stage 1: Acid Stage 2: Pad Stage 3: 100 Mesh Sand Stage 4: 70/40 Sand Stage 5: Flush Perf Zone Stage 3 Fluid Stage within Perf Zone Stage 2 Stage 1: Acid Stage 2: Pad Stage 3: 100 Mesh Sand Stage 4: 70/40 Sand Stage 5: Flush Perf Zone Stage 2 Fluid Stages within Perf Zone Stage 1 Stage 1: Acid Stage 2: Pad Stage 3: 100 Mesh Sand Stage 4: 70/40 Sand Stage 5: Flush Perf Zone Stage 1 Example reports courtesy of Doug Custer, Cimarex Energy STAGES DATA FRAC REPORT • Pump schedule is one of the most basic pieces of data • Stages here are the small “fluid” stages within a larger “perf zone” stage PUMP SCHEDULE (for a single perf zone stage) FRAC REPORT DATA FRAC REPORTS At “toe” of well. VOLUMES SUMMARY (for all perf zone stages in a particular well) FRAC REPORT Slickwater: water with a little polymer added, but the polymer is not cross-linked to viscosify it. The main frac fluid in this case. Creates the fracture and carries the sand in. HCl: Hydrochloric acid. Pumped before pumping the slickwater. Removes debris from perforation tunnels to improve connection to reservoir. 1