ivity.
Fullbore pressure or percussion
actuated tubing-conveyed perfo-
rating systems provide maximum
exibility.
The Schlumberger QUANTUM
PERFPAC System is a one-trip perfo-
rate and gravel-pack system combining
tubing-conveyed-perforating, a gravel-
pack/ STIMPAC treatment and test
tool components into a single trip in
the well. In the QUANTUM PERFPAC
system, multiple technologies are de-
signed to work together to provide not
only robust versatility, but also a solu-
tion to past challenges posed by com-
bining tubing-conveyed-perforating
with sand control operations. The
QUANTUM PERFPAC system solves
the effects of gun shock, both
hydraulic and mechanical, premature
completion-packer-setting caused by
pressure and uid surges, reliable
underbalance pressures and hydraulic
sticking of the perforating packer. The
result is an efcient and reliable com-
pletion system that adds value to the
well completion operation.
QUANTUM PERFPAC Single-Trip System
Drillpipe to surface
Radioactive marker sub
IRIS* dual valve
Gauge carrier
QUANTUM GP packer
GP housing
Safety shear sub
Blank pipe
Production screen
Polished sealbore (PBR)
Perforating packer
Pup joint
Slotted debris sub (LSDS)
Pup joint
Firing head
Auto gun release (SXAR)
High shot density
TCP guns
Large bore flapper
valve (LBFV)
QUANTUM service tool
with POIT module
Run BHA
in the
wellbore
Fire guns,
flow well
Reverse circulate
through IRIS CV
Well stable,
apply S.O.S.
command QUANTUM Completion Systems for Gravel-Pack Applications
15
The QUANTUM PERFPAC system
maximizes formation productivity,
especially for formations sensitive to
uid loss. Gravel-packing can be per-
formed immediately after perforating.
Productivity is improved, because
damage caused by uid loss is mini-
mized. Perforating is done with high-
performance, big-hole perforating
charges that provide up to 21 shots
per foot (spf). The gun is optimally
designed to determine the precise
shot density for each zone.
The innovative SXAR automatic
gun release insulates the system
from mechanical gun shock, and the
QUANTUM PERFPAC system allows
real-time monitoring of surface shot
detection and pressures. Plus, there is
immediate cleanup of perforating and
nearby wellbore damage debris.
The QUANTUM PERFPAC system
provides fast, efcient gravel packing
during sand control operations and
maximum flexibility with fullbore
pressure or percussion actuated TCP
systems. Combined with the IRIS*
dual-valve (IRDV), there is safe and
effective underbalance well control,
plus the QUANTUM packer is pro-
tected from pressure and uid surges.
The QUANTUM PERFPAC system
minimizes completion fluid losses,
especially important with expensive,
damaging, zinc-based fluids, maxi-
mizes gravel-packed completion pro-
ductivity, reduces cost by saving rig
time and eliminates the need for uid
loss pills.
Move downhole,
reset perforating
packer, set
QUANTUM packer
Drop VRX
plug to seat,
mechanically
override
IRIS tool
Establish positions,
pump sand
control treatment
Reverse out
excess slurry
POOH, close
LBFV to isolate
formation