APA 2017 data pack

Kadme, Cama GeoScience, Sxicom and Rocktype present an extensive data package for the 2017 Awards in Predefined Areas (APA) of the Norwegian continental shelf. The pack, designed to guide licensing decisions for the 2017 APA round and beyond, has a particular focus on the the Barents Sea. It includes:

  • Merged and matched 2D and 3D seismic data from all 3 APA areas
  • Petrophysical well interpretation of 100 Barents Sea wells
  • QEMSCAN analysis of 1000 Barents Sea core samples
Barents Sea 2D and 3D seismic coverage

Barents Sea 2D and 3D seismic coverage

QEMSCAN of 1000 Barents Sea samples

Rocktype is performing the largest ever QEMSCAN survey by scanning 1000 samples from 11 Barents Sea wells. This survey showcases the new high-volume QEMSCAN 50 service from Rocktype. This fast, low-cost service enables clients to get precise mineralogy and porosity throughout all cored intervals in these wells. 

Sampling

We have sampled at 0.5m or 1m  spacing from all available core. This provides a continuous mineralogy record to match directly to the well log.  

Modal mineralogy from QEMSCAN 50

Modal mineralogy from QEMSCAN 50

 
11 Barents Sea wells
 
 
Well Formations Samples
7119/9-1 Stø 73
7120/1-2 Kolmule, Kolje, Knurr, Fruholmen 50
7120/6-3S Kolmule 31
7120/10-2 Knurr 17
7120/12-2 Fuglen, Stø, Nordmela, Ørret 289
7128/4-1 Røye, Isbjørn, Ørn, Soldogg 171
7219/8-1S Hekkingen, Stø 58
7220/7-3S Stø, Nordmela 70
7224/7-1 Stø, Nordmela, Tubåen, Kobbe 97
7226/11-1 Hekkingen, Tubåen, Fruholmen, Kobbe, Havert, Ulv, Ørn 238
7228/7-1S Stø, Nordmela 57
Note: This list is preliminary. The final list of scanned samples will be published in June.
 

High resolution QEMSCAN petrography

From the samples scanned at 50 μm, we will select 50 representative samples to be scanned in high resolution as QEMSCAN 4. These high resolution scans enable detailed study to texture, pore lining phases and mineral association.

 

High resolution mineral map of coarse-grained sandstone

 

High quality seismic data with maximum coverage

3D view of a 3D survey as it intersects a wellbore.

3D view of a 3D survey as it intersects a wellbore.

  • Released 2D and 3D seismic datasets matched for maximum coverage and quality
  • 3D surveys merged into 25m x 25m grid where applicable
  • Original geometry used on stranded 3Ds and 2D lines
  • 2D lines used to tie the stranded 3Ds
  • 2D lines spliced where applicable
  • Velocity data provided as a 1000m x 1000m grid every 100ms
  • New velocity model combined with check shots using DUG depth conversion to deliver depth-converted seismic data
Before processing data is showing spikes.

Before processing data is showing spikes.

After processing the data is harmonised.

After processing the data is harmonised.

Seismic clean-up and quality control

  • Scan 3D data trace headers for consistency
  • Compare navigation in trace headers with navigation file
  • Check for data spikes
  • Check for seismic anomalies
 

Petrophysical interpretation of 100 Barents Sea wells

The experts at Cama Geoscience will interpret well data from 100 Barents Sea exploration wells.

  • Petrophysical (CPl) interpretation of 100 exploration wells
  • Mud log and mud gas data
  • Logs, Vcl, ø, Sw, check shot and deviation
  • Detailed salinity (Rw) maps
  • Calculated porosity is calibrated to measured core porosity
  • Interpreted NPD tops
  • Well data will be matches to corresponding QEMSCAN analysis data
Well logs
 

Data delivery – speedy online access

Kadme Whereoil

The initial data set will be provided on disk, with updates provided online through the Kadme Whereoil platform. The delivery includes:

  • Public APA 2017 datasets for the Barents Sea, followed by updates with the Norwegian Sea and North Sea
  • Interpreted petrophysical datasets in Petrel and DUG format; seismic, well data and velocity models
  • QEMSCAN 50 mineral map images and tabular mineralogy from 1000 samples
  • High resolution QEMSCAN 4 mineral map images from 50 samples 

Project partners

Well interpretation expertise from the most experienced interpreters on the Norwegian Continental Shelf

Well interpretation expertise from the most experienced interpreters on the Norwegian Continental Shelf

Knowledge and data management specialists. and creator of the Whereoil platform.

Knowledge and data management specialists. and creator of the Whereoil platform.

 
QEMSCAN petrography experts. Specialists in high volume, fast turn-around projects

QEMSCAN petrography experts. Specialists in high volume, fast turn-around projects

Experts of supergrid technology drawing on expertise gained in an industry center of excellence

Experts of supergrid technology drawing on expertise gained in an industry center of excellence

 
 

We are grateful to Statoil for advice with devising a sampling programme from five key Barents Sea wells and their permission to make the resultant QEMSCAN data available through our APA 2017 multiclient study.  We hope this 800 sample dataset will provide great insights to Barents Shelf explorers as they enter the APA 2017 round and beyond.

 
 

See further details at the Kadme APA 2017 page.