Directional Drilling Services
Resistivity
CPR Propagation Resistivity
Compact Propagation Resistivity provides a fully compensated, Multi-Frequency, Multi-depth Wave Propagation Resistivity measurement. By means of a patented Depth Compensation System, the antenna array is up to 50% shorter than previously existing devices. The CPR propagates a magnetic field into the formation at 2MHz and 400Khz, and measures phase difference-based resistivity at three transmitter-receiver spacings to provide a total of six resistivity curves at six depths of investigation. High vertical resolution compensated data is available in real-time and memory for comprehensive and accurate formation evaluation or geo-steering applications.
The use of Ultima Labs patented Bore-hole Compensation System results in a shorter tool that offers state-of-the-art borehole compensation resulting in an overall shorter tool. CPR’s unique design allows simple replacement of electronic housings, wear sleeves and antenna shield sections when required.
CPR Propagation Resistivity has a number of special features:
- Three transmitter-receiver spacings, two operating frequencies (2MHz and 400KHz) - Six Resistivity Curves.
- Patented Depth Compensation System - Shorter overall tool length.
- Unique design - less expensive to own and maintain with no sacrifice of data quality.
- High vertical resolution - accurate formation evaluation capability.
- Standalone or combinable with EDS MWD system.
Transmark-EDS adheres to a very strict preventive maintenance schedule; clear and unambiguous criteria have been defined to determine acceptance and required maintenance of individual downhole components.
TRIM Induction Resistivity
TRIM is an Orienteer MWD plug-in extension option, offered in outside diameters ranging from 4 ¾” to 9 ½”. It is assembled below the Orienteer directional and gamma probes, providing a quality induction measurement as close to the bit as possible in normal drilling assemblies. The TRIM resistivity measurement matches the industry standard deep-induction wire line measurement in depth of investigation, with a thin bed resolution superior to the equivalent medium induction log. The system employs a data-processing algorithm which provides full shoulder-bed and skin-effect correction. Operating at a frequency of 20 KHz, TRIM has the added advantage of providing deeper readings than high frequency wave propagation tools. The main benefit of this is that TRIM can accurately resolve Rt, as it measures the formation beyond the invasion profile. It is also capable of sensing approaching bed boundaries much sooner during geo-steering operations.
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CPR Sondex
