CoilComm Monitoring Service - Halliburton

Boots & Coots
CoilComm SM Monitoring Service
Coiled Tubing Communication Real-Time Monitoring for Challenging Wellbores
The Boots & Coots and Pinnacle CoilComm SM monitoring service
provides real-time fiber optic monitoring, including StimWatch®
injection analysis and FlowWatch SM production profiling service.
The CoilComm monitoring service offers rigless capabilities for
fiber-optic cable inside coiled tubing to more efficiently,
economically and accurately deploy monitoring solutions for
a host of applications, including deployment in technically
challenging reservoirs. CoilComm monitoring capabilities
include distributed fiber sensing technologies such as distributed
temperature sensing (DTS) and distributed acoustic sensing
(DAS), and can also be combined with other measurements
like logging tools, pressure sensors and shifting tools.
The CoilComm monitoring service is part of Halliburton’s
FiberWatch® services and fiber-based products, comprising a
portfolio of fiber-optic sensing measurement systems, acquisition
and visualization platforms for a wide range of downhole conditions
and applications, including high-pressure wells, extended reach
horizontals, cyclic steam stimulation (CSS), and steam-assisted
gravity drainage (SAGD) wells. Owing to its conveyance in coiled
tubing, CoilComm service represents a long-sought solution for
obtaining real-time analysis in high-pressure horizontal wells that
are outside the effective realm of conventional production logging
tools (PLT), in thermal enhanced oil recovery (EOR) wells, and for
stimulation monitoring of acid jobs and re-frac wells.
We combine our expertise to provide better solutions for our customers
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The CoilComm monitoring service provides operators a viable
solution with a number of distinctive advantages:
• Rigless coiled-tubing conveyance represents a more
effective and less expensive solution for generating
extremely precise fiber-optic measurements in highly
deviated wellbores with bottomhole temperatures approaching
350°–500°F (175°–260°C), depending of the type of well
• Delivers real-time distributed-temperature measurements in
dynamic downhole conditions
• Provides a cost-effective alternative to traditional PLTs
• Coiled-tubing sizes can be adapted to deliver project-specific
conveyance for virtually any well type, including cased holes,
open holes and both horizontal and vertical wellbores
• For SAGD projects, the capacity to pinpoint steam
breakthrough enhances reservoir management by helping
assure complete steam saturation and distribution across the
entire lateral
The difference is in the delivery
With the uniquely engineered CoilComm monitoring service,
the optical fiber can be installed inside various coiled-tubing
sizes depending on wellbore requirements. More conventional
deployment methods can require permanent, casing-conveyed, or
tractor-in conveyance, which can be expensive, limited, and risky.
Deploying fiber-optic sensing technologies in coiled tubing is a
much more efficient and economical method for continuous
real-time monitoring of horizontal well conditions.
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When real-time monitoring is required as part of the overall
reservoir management strategy, the CoilComm service provides
ideal conveyance for the Halliburton StimWatch® DTS service.
In a distributed-temperature survey, the optical fiber serves as
the sensing element, and when combined with coiled-tubing
conveyance, enables the operator to continually monitor wellbore
temperature across the entire lateral. Unlike traditional deployment,
coiled tubing-conveyed DTS measurements clear the way for
injection or production profiling as the fluid enters and exits
the wellbore.
The advantages of coiled tubing-conveyed fiber-optic
measurement systems are particularly apparent for production
profiling in high-temperature horizontal wells. Typical PLTs have
been unable to obtain production logs in high-temperature
reservoirs. What’s more, conveying conventional logging tools
on either coiled tubing or tractors is not only expensive, but can
produce suspect results, especially in multiphase flow regimes.
By using highly efficient DTS and DAS coiled-tubing conveyance
monitoring, operators have been able to acquire extremely precise
measurements in horizontal wellbores while in the process
eliminating the risks and costs of well intervention for logging.
Designed for versatility
The CoilComm monitoring service adds a new dimension to
FiberWatch fiber optic sensing systems, which have evolved into
widely accepted alternatives to injection tracer surveys, coiled
tubing production logging, and other prevailing evaluation
techniques. The FiberWatch sensing systems are designed to
provide measurements in a wide variety of real-time monitoring
applications and downhole well conditions.
The advantages of CoilComm conveyance service are especially
pronounced when used in steam applications, particularly
in identifying steam breakthrough in horizontal profiles.
Used in tandem with the FiberWatch service wellbore cool-down
procedure, CoilComm service gives operators a clear picture of
where the steam is being distributed inside the lateral, as shown
in the lower right graph. Conventional monitoring techniques
would show an isothermal value from the toe of the well to the
WELL INTERVENTION
Shut-in interval showing gas entry into the borehole as it slowly
builds pressure in the casing
To learn more about the CoilComm monitoring service and its capacity to deliver
efficient and economic downhole measurements in challenging wellbores, contact your nearest
Boots & Coots or Pinnacle representative, or email boots-coots@halliburton.com
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Steam Breakthrough Monitoring
An actual well plot sequentially showing a geothermal cool-down
test to identify steam breakthrough that conventional monitoring
techniques would otherwise miss. The dark blue line depicts stable
temperature from about midperforation to surface, while the dark
pink line shows the injected water moving down hole. Once the
injection has stabilized, the pink line represents the point where
injection ceases and thermal recovery begins. The light blue line
targets the steam-entry point at around 900 ft (274 m), after which
the temperature climbed 50°F (10°C) at the heat zone and five
minutes later had masked over a 200-ft (61-m) area.
surface, but were unable to distinguish between exceptional
full-lateral steam distribution and the presence of a breakthrough
at some point in the horizontal. To quantify steam saturation
and distribution, CoilComm service deploys the FiberWatch
cool-down process that involves injecting cold water in the
wellbore to precisely target the suspected breakthrough.
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