40～300 mm 1.5% F.S Software-controlled JJY-3D 3-Arm Caliper Probe
Description
The 3-Arm Caliper probe records a single continuous borehole
diameter log by means of three mechanically coupled arms in contact
with the borehole wall.Also equipped with liquid level detection
electrode, Measure the depth of the liquid level in the
borehole.Liquid level depth and caliper is the important parameters
of hydrological survey well logging information.
Operating Conditions:Uncased；Borehole Fluid:Dry, Water or Mud
Features & Benefits
1. Opening and closing of the motor-driver caliper arms is by
surface command, allowing the probe to run into the borehole with
the arms retracted.
2. Easy exchangeable caliper arm lengths and wear tips
Applications
Rock integrity evaluation
Fracture and cavity localization
Borehole diameter measurement
Borehole volume calculation before borehole completion, cementation
Often used in the implementation of environmental correction
equations for other logs
Parameter
1. Measurement Mode:Three mechanically coupled arms in contact
2. Measurement Range:40～ 300 mm
3. Measurement Accuracy:1.5% F.S
4. Opening Mode:Software-controlled；Motor as transact organ
5. Environmental: Temperature≦85℃；Pressure≤20MPa
6. FD-3019 Composite interface(Special Order)
7. Signal:Bipolar Codes
Related Products
JJY-3D 3-Arm Caliper
JJY-2D(X - Y ) Borehole Geometry
JJY-1D Caliper(600mm-3000mm)
