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[20/04/2009] CASED
HOLE SERVICES
Cased-hole
logging is important for correlation to get precision
depth on well completion. Initial well completion using GRCCL to
corelate with Open Hole GR.
GRCCL - 9053
Gamma Ray and
Collar Logs are used to correlate our depth measurements back to
the original open hole and cased hole logs that were run during
well completion.
The
left curve is GR log which correlated to Open Hole GR to match
the depth. The right curve is CCL curve to record casing collar
depth.
Specifications
|
Dimension |
|
|
|
Tool Length |
118.9 cm |
52.75 in |
|
Diameter |
41 mm
|
1.625 in |
|
Weight |
7.46 kg
|
20 lb |
Offset Parameter
|
Sensor # |
Tipe of
Sensor |
Offset |
|
1 |
Gamma Ray |
114.3 cm
|
45 in |
|
2 |
CCL |
20 cm |
7.9 in |
Operation Parameter
|
Parameter |
|
|
|
Max
Temperature |
85 C
|
185 F |
|
Max Pressure |
281 kg/cm2 |
4000 PSI |
|
Logging Speed |
9 m/min |
30 ft./min |
|
Tool Voltage |
36 VDC |
|
|
Calibrator |
Water Tank |
85 API GR
blanket |
GR NEUTRON - 9073
Cased Neutron Log compare with Open Hole Neutron Log to predict
gas oil water contact after several times production.
Cased hole neutron tool using same tool with Open Hole Neutron
tool; CNT-9073.
CCL
Casing Collar Locator
useful to measure position of Casing collar and perforation
trace. CCL responds to changes in metal metal volume. As the
tool passes a collar, or change in metal volume, lines of
magnetic flux between two opposing permanent magnets are
disturbed. This causes a low frequency voltage or Electro
Magnetic Field (EMF) to be induced in a coil, mounted between
the permanent magnets. Finally the signal is converted by a
voltage-controlled oscillator for recording.
Some times CCL run in
combination with gun to get precision depth perforation.
TEMPERATURE
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all right reserved, copyright (c) Kalrez Petroleum (Seram) Ltd 2009
