On-demand

10 – Gas Sands

$99.00

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Format

On-demand

Duration

1 hr

Level

Certificate

Yes

Language

English

Access

1 Year 24/7

Publisher

Ross Crain

What you will learn

  • Gas effects and the impact of log scales on gas zone identification
  • Step-by-step procedures for calculations
  • “Computer-ready” mathematics
  • Exercises and worked examples for further study

Description

This quantitative course continues coverage of basic petrophysical analysis with an investigation of the effects of gas on logs, and our mathematical solution to the problem. You will learn that when both density and neutron logs are available on appropriate scales, we can sometimes recognize the presence of gas by an artifact called “gas cross-over”. However, we can have gas with no cross-over and cross-over with no gas, so the technique is far from foolproof. This is where mud logs, production tests, and local knowledge help out. Three examples illustrate the topic.

Prerequisites

  • Crain’s Integrated Petrophysics, Lectures 1 to 9 or equivalent background.
  • Basic understanding of geology and well logging.

Curriculum

  • Compatible Scale Logs for Gas Identification
  • Gas Effect in Sandstones and Shaly Sands
  • Add gas correction to the shale corrected density neutron complex lithology porosity model
  • Exercise 5: Shallow Gas in Clean and Shaly Sands
  • Exercise 6: Gas, Depleted Gas, Tar Sands
  • Exercise 7: Gas in Clean Sand, Shaly Sand, and Gas Shale/Silt

Target Audience

Those who wish to become proficient in petrophysical analysis or who need to manage or make use of petrophysical results will benefit from this course, including:
  • Managers,
  • Geologists,
  • Log analysts,
  • Geophysicists,
  • Reservoir engineers,
  • Completion engineers,
  • Stimulation engineers, and
  • University / Tech school students

Specification: 10 – Gas Sands

Format

On-demand

Duration

1 hr

Level

Certificate

Yes

Language

English

Access

1 Year 24/7

Publisher

Ross Crain

About the Publisher

  • Ross Crain
  • Store Name: Crain's Petrophysical Handbook
  • E. R. (Ross) Crain, P.Eng. is a retired Consulting Petrophysicist and Professional Engineer living in Calgary, Alberta, Canada. In a career that spans 50+ years, he has specialized in integrated petro...   Read More >
  • Read More

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$99.00

2
Add to compare
Format

On-demand

Duration

1 hr

Level

Certificate

Yes

Language

English

Access

1 Year 24/7

Publisher

Ross Crain

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