Services in along-hole depth  determination for drill pipe and wireline.

 

Including: requirements assessment, program design, service quality assurance and control, depth determination, depth recalculation, corrections, uncertainty calculation, supplier audit and training.

Drilling program – Driller's depth and LWD depth determination using Driller's Way-point Depth (pat.pend.) method

Wireline program – Depth determination processes and procedure

Data review – Depth data QC-QC, Depth data analysis

 

Along-hole depth determination – Wireline measured depth, Drill pipe measured depth, Uncertainty determination, Depth correlation

Corrections – Coefficients, Correction models, Calculations, Stick&Pull (stick-and-slip), Creep, Wireline initial Permanent Deformation (IPD)

Uncertainty - model determination, parameter selection and quantification, uncertainty determination, True Along-hole (TAH) depth

Data review – Depth data QC-QC, Depth data analysis

Geological – Top horizon, FWL contact depth data, Static services along-hole depth accuracy, Recalculation

Cased hole – Program review for depth measurement optimization

Operator – Depth data requirements

 

Depth data supplier – Process and procedure audit, Quality assurance and quality control

Regulatory authority – compliance audit

Operations and logging for non-loggers



E-line for new loggers

Depth for data users

Depth for logging crews

Well site training QC

 

Along-hole depth is the most fundamental subsurface measurement made in wellbores. Along-hole Depth provides background and theory, practical hints and step-by-step guide for this measurement using in oil & gas and geothermal wells. Topics include depth determination methods, wireline and driller’s depth measurements, calibration, corrections, uncertainty determination and practical steps to providing consistent and auditable along-hole measurements. It includes insights into the differences between measurements and what can be done to explain and mitigate these. It also looks at the expected impact of API RP-78. Along-hole Depth is for drillers, wireline and LWD engineers, slickline operators and mud loggers as well as geologists, reservoir engineers, geomodellers, formation evaluation specialists, mud loggers, core analysts, cased hole service providers, production specialists, well data QA-QC personnel, students: basically anyone who deals with subsurface data and services.

Published by ICT Europe S.A. For more information and purchases please refer to LuLu.

Wireline Depth Determination Rev 4.0 (WDDrev4.0) is the last of the publications on wireline depth determination. Finalized in 2014, it was used as the basis for Along-hole Depth that now includes a greater amount of material and updated examples. It includes the basic calculations deployed in www.wirelinedepth.com where wireline depth calculation and correction are available. For basic wireline depth determination, WDDrev4.0 can be downloaded from www.wirelinedepth.com

 

Along-hole depth is the most fundamental subsurface measurement made in wellbores. Along-hole Depth provides background and theory, practical hints and step-by-step guide for this measurement using in oil & gas and geothermal wells. Topics include depth determination methods, wireline and driller’s depth measurements, calibration, corrections, uncertainty determination and practical steps to providing consistent and auditable along-hole measurements. It includes insights into the differences between measurements and what can be done to explain and mitigate these. It also looks at the expected impact of API RP-78. Along-hole Depth is for drillers, wireline and LWD engineers, slickline operators and mud loggers as well as geologists, reservoir engineers, geomodellers, formation evaluation specialists, mud loggers, core analysts, cased hole service providers, production specialists, well data QA-QC personnel, students: basically anyone who deals with subsurface data and services.