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Product Specification Sheetstop arrow

Production Logging Tools

Nan Gall Energy Systems produces Cased Hole Production Logging Tools for both Memory and SRO (Surface Read Out) operations, together with all the Surface Hardware and Software required to produce API logs ready for analysis.

The "downhole" standard Production Logging Tool string is rated to a temperature of 175 degrees C and a pressure of 16Kpsi and is available in both 1 3/8" and 1 11/16" versions. (*)

The Logging Tools interface with either a "downhole" memory module for slick line operations or a "downhole" Telemetry module for "electric line" applications.

The downhole memory module is available in various data memory size options. The downhole telemetry module interfaces with a Personal Computer via a small surface interface box.

Nan Gall Energy Systems provides its own proprietary software (Unilog) with each tool string to allow easy data processing, analysis and presentation.

The "downhole" logging tools include;

  • Pressure & Temperature Tools (Quartz or Strain)
  • "External" Temperature
  • Casing Collar Locator
  • Gamma Ray
  • Fluid Identification
  • Flowmeters
    o Fixed Bore (various sizes and configurations)
    o Full Bore (various sizes and configurations)
    o "In Line" (various sizes)

together with standard accessories such as centralisers and "knuckle joints."

The surface "Depth Logger" module, which is operated in conjunction with the downhole memory production logging tool string has been fully certified as an "intrinsically safe" product (Ex) allowing it to be safely operated in wellhead areas designated as "hazardous." The module can also be used to monitor tension on the slickline. Tension values are logged to memory in conjunction with the depth data and alarms can be set to identify potential "downhole" problems if tension thresholds are triggered (line going "slack" or "tight.")

(* A special tool string is available which is rated to 200 degrees C. Please contact us for details.)

PRODUCT SPECIFICATION SHEETS

Memory & Control Module Click to viewtop arrow
Telemetry Module Click to viewtop arrow
Casing Collar Locator (CCL) Click to viewtop arrow
Combined CCL / Temperature Tool Click to viewtop arrow
Gamma Ray Click to viewtop arrow
Combined CCL/Gamma Ray Click to viewtop arrow
External Temperature Click to viewtop arrow
Quartz Pressure & Temperature Click to viewtop arrow
Silicon Sapphire Pressure & Temperature Click to viewtop arrow
Combined External Temp, Pressure & Flowmeter Click to viewtop arrow
Flowmeter/Spinner (various sizes available) Click to viewtop arrow
In-line Flowmeter/Spinner (various sizes available) Click to viewtop arrow
Full Bore Flowmeter (various sizes available) Click to viewtop arrow
Fluid Identification (Gradiomanometer) Click to viewtop arrow
Fluid Identification (Fluid Capacitance) Click to viewtop arrow
Centraliser (slip-over) Click to viewtop arrow
Centraliser (in-line) Click to viewtop arrow
Shock Absorber Click to viewtop arrow
Surface Depth & Tension Logging Module Click to viewtop arrow
Real Time Surface Read Out Interface Module Click to viewtop arrow
Depth Logger Shaft Encoder Click to viewtop arrow
Tension Devices (Bolt and Shackle) Click to viewtop arrow
Fluid Density (Radioactive) Click to viewtop arrow
Fluid Density (Tuned)- VFD Click to viewtop arrow

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