Cased Hole and Production Log Evaluation
INSTRUCTOR: James Smolen, PhD
DISCIPLINE: Engineering, Formation Evaluation
COURSE LENGTH: 5 Days
AVAILABILITY: Public & In-House
WHO SHOULD ATTEND: Reservoir and production engineers and geologists, cased hole sales engineers, petrophysicists, log analysts and others involved in maximizing recovery, identifying production problems or planning workover operations.
COURSE DESCRIPTION: This comprehensive, up-to-date course covers new and traditional wireline diagnostic techniques for cased wells and emphasizes three major factors. 1.) Evaluation of formation through casing focuses on locating oil, gas and water downhole, determining their saturations and monitoring their movement over time. 2.) Well integrity applies a variety of cement bond logging and casing inspection techniques to confirm zonal isolation and detect mechanical damage, corrosion, scale, perforations. 3.) Water identification and fluid contribution emphasizes techniques to quantify the sources of water, oil and gas production for control of the production profile or as inputs to reservoir modeling. Special consideration is given to the newest logging techniques for highly deviated and horizontal wells.
- Quickly recognize clean gas, oil and salt water zones on Gamma Ray and Sigma logs.
- Calculate fluid saturations from Sigma logs in both clean and shaley intervals.
- Assess cement quality, compute bond index, appreciate the shortcomings of this measurement and select a suitable bond log tool.
- Compute the well flow profile (zonal contributions) from the Spinner and Fluid ID surveys.
- Use temperature log to detect contributing zones and possible channels.
- Overview of cased hole logs
- Formation evaluation
- GR and CNL
- Pulsed neutron sigma and C/O logs
- Resistivity and acoustic
- Well integrity
- Conventional, directional and pad tools
- Pulse echo techniques
- Casing inspection techniques
- Fluid contribution
- Classic PLT approach
- Oxygen activation and PN techniques
- New tools for horizontal wells