Aberdeen, UK

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AFES AGM + Technical Talk: 14th October 2021

October 14, 2021 @ 6:30 pm - 7:30 pm

AFES Annual General Meeting.

AFES are delighted to offer their first physical event for over a year:

The 2021 Annual General Meeting & Technical Talk

Please join us for the evening and enjoy one of the first face to face events after the pandemic

The AGM will comprise of a brief overview of the past year:

  • AFES events of the past year
  • Work with Universities & Students
  • Financial Summary
  • AFES Committee Movements
  • Technical talk will follow the AGM – refer to next slide
  • The event is FREE to attend

Hosting the event at The Crown Plaza, Aberdeen Airport at 18:30, Thursday 14th October.

  • Light refreshments and nibbles provided
  • Hotel bar available
  • Free parking available

Due to the ongoing limits to gatherings, we need to know attendee numbers so we can manage our venue booking.  Please kindly inform us if you intend to join us by emailing secretary@afes.org.uk at least 24hrs prior to the event

Slide Pack: 14-Oct-21 AGM Announcements

Technical Talk:

Lifting The Lid On Depth – Catastrophy or Opportunity?

Depth is the most fundamental measurement acquired – all well and field data is referenced to depth.  We have two main sources of well depth, the Drillers Depth (LWD) and wireline depth. Drillers Depth (DD) is the cumulative length of pipe run in hole.  It remains the well reference depth in well records, final well report, casing and completion reports.  Wireline depth is measured by the length of an elastic cable with a logging sonde on the end being run in hole and out again – simple!

We take the depths provided and apply it in our reservoir models. However, we know Driller’s depth is shallow to true depth, and we know wireline depth has uncertainties.  So why do we ignore these inconvenient facts to our primary reference value?


Russell Gray has worked in core and log petrophysics for over 30 years. He is currently senior advisor for data acquisition at TotalEnergies in Pau. Previously he was a Petrophysicist at Total E&P UK and Scott Pickfords and technical advisor with Core Laboratories




October 14, 2021
6:30 pm - 7:30 pm


Crowne Plaza, Dyce Airport