JPT, September 2014 Copyright 2014, Society of Petroleum Engineers. Reprinted from the Journal of Petroleum Technology with permission.

1. TECHNOLOGY APPLICATIONS
Chris Carpenter, JPT Technology Editor
Fracture-Analysis Service
Baker Hughes introduced its Stage-
Watch fracture-analysis service to col-lect
the sound reservoir data needed to
guide future drilling, perforating, frac-turing,
and completion programs. The
data enable proper planning for future
wells, effective refracturing strategies,
and data-driven completion designs
that increase production and ultimate
recovery. To obtain these data, pres-sure
and temperature gauges are insert-ed
into purpose-built sleeves, which are
deployed as part of the casing string
(Fig. 7). The StageWatch system was
designed to allow flexibility of sleeve
placement so that data could be captured
from multiple zones in the wellbore
without modifying the existing casing
program. To retrieve the gauges after the
job is completed, a bottomhole assem-bly
(BHA) comprising a circulation sub,
a recovery basket, and a shifting tool is
run downhole on coiled tubing. The dogs
on the shifting tool engage the sleeve
Fig. 7—Baker Hughes’ StageWatch fracture-analysis service allows flexible
sleeve placement.
and shift it open, releasing the gauges
into the annulus. The gauges are caught
in the basket, and the BHA is pulled
out of the hole to the next sleeve. The
BHA collects all of the memory gauges
in a single trip, providing an efficient
retrieval process. These data are then
interpreted by an engineer to provide
data administration and fracture, pro-duction,
and reservoir characterization,
enabling more-­effective
future fractur-ing
programs. JPT
◗◗For additional information, visit
www.bakerhughes.com.
Copyright 2014, Society of Petroleum Engineers. Reprinted from the Journal of Petroleum Technology with permission.
26 JPT • SEPTEMBER 2014