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Services > Wireline
Logging Services >Auxiliary Services |
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Auxiliary
Services |
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Auxiliary
Services
- Tension Temperature and Rm Sensor Sub
- Caliper Log
- Pipe Conveyance System
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Tension
Temperature and Rm Sensor Sub
This sensor sub monitors the tension/compression
forces on the downhole tool string while logging,
and provides a better knowledge of the force
on the cablehead tensile bar when the tool is
sticking. In addition, the sub provides information
about forces on the logging string during pipe-conveyed
or coiled tubing operations. It is compatible
with all the standard tools.
Applications
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- Cablehead tension/compression forces
- Borehole temperature
- Mud resistivity
- Wireline, pipe-conveyed, or coiled-tubing-conveyed
operations
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Caliper
Log
The Caliper Log is a continuous profile
of the borehole wall showing variations
in borehole diameter. Caliper Logs can be
recorded using 4 arm tools. The measurements
and their average accurately define the
hole shape and size, especially in deviated
and elliptically shaped holes.
Single sensor calipers measure one diameter
of the hole and are combinable with virtually
all other open hole logging tools.
Applications |
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- Determine borehole profile for cement
volume calculations
- Provide information on build-up of mudcake
adjacent to permeable zones
- Determine hole size for fluid flow calculations,
particularly in irregular boreholes
- Locate packer seats in open hole
- Locate breaks in parted tubing or casing
- Locate gas lift mandrels, landing nipples,
and other restrictions in tubular goods
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Pipe
conveyance system
High-angle, extended reach, and horizontal
drilling technologies have created new requirements
for the conveyance of wireline logging tools.
Even in straight-hole drilling, difficult
hole conditions such as washouts, bridges,
key seats, dog legs, etc., present obstacles
to standard wireline methods.
CNLC offers pipe-conveyed logging equipment
to acquire fast,
reliable wireline data in both open and cased
holes. |
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Pipe-Conveyed
Logging (PCL)
PCL is suitable for well conditions such as
washouts, bridges, and high angles. The tools
are attached to the drill pipe for tripping
in and out of the well while the downhole
wireline connection is made by means of a
side entry sub. Repetitive PCL wet connections
can be made for multiple-zone servicing.
Advantages |
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- Tool protection options
- Fast rig up/down
- Logs in/out of well
- All logging combinations available
- Mud circulation through the drill pipe
- Multiple wet connections without tripping
tools
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