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THE STANDARDS

Introduction

The Standards located in the basement of the Physical Measurements Center are used as references to characterize new logging tool prototypes or to re-characterize older tools when major hardware changes occur in their design. These “Master” standards are then used to characterize secondary standards, like the small aluminum and magnesium blocks used in the local workshops of service companies to standardize logging tools.

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A logging calibration center like the one in Artigueloutan is the first link in the data quality-assurance chain, which generally comprises three main steps:

  • Calibration with Master standards, large enough to be considered as infinite for the logging tool. They are the master references for the entire quality chain.

  • Normalization using smaller secondary standards. These operations take place in the local operational workshops, every two weeks on average.

  • "Before and after" survey verifications are performed on the rig site each time the tools are run in hole, to make sure that the tools  are still working properly. The jigs used for these verifications are light and mobile.

etape_intro_.png

 

In the oil industry, these three steps are called “Master calibration”, “Workshop calibration” and “Before and after survey calibration”.

TEP ASD Master standards are characterized using state-of-the-art measurements from an accredited calibration laboratory. The Physical Measurements Center could apply for accreditation and become a certification center. TEP ASD will be accredited by ISO 17025, ISO 10012 and/or COFRAC.

 

1. ROCK STANDARDS

2. FLUID STANDARDS

3. ALUMINUM & COMPOSITE STANDARDS

4. SAND PACK STANDARDS

5. CASINGS & COMPLETION SLEEVES

 

The following tables summarize the different technical parameters of the standards such as hole diameters, rat hole diameters,  formation water salinity, the main lithologies in the tanks, etc. Each cell represents a tank location. The XY location of the cell reflects the basement map. 

 

tableau_conclusion_standards.png