• Nicholas Harvey

NMR Processing


HRP has included in the advanced log analysis module the ability to process NMR T2 distributions from any and all vendors. T2 data from core can also be processed.

The problems solved are as follows:

  • Ability to independently process NMR data to produce a pore throat distribution

  • Ability to create an NMR derived porosity independently

  • Ability to integrate with the open hole and core evaluation

The value to the end user is as follows:

  • Can be performed on an iPad in addition to Windows desktop and tablet. This will allow the professional to build an interpretation collaboratively in a conference room, at the core laboratory or at the well site.

  • From the raw data can produce results straight away. No waiting on service company results.

  • Insights into the data can be gleaned immediate on receipt of the data.

A some examples of the processing are shown in the figures below.

The tracks from left to right are as follows:

  1. Depth and bad hole indicator

  2. Gamma Ray and Rhoma (Matrix density)

  3. Resistivity

  4. Neutron-Density-PEF

  5. HRP computed NMR bins (Higher numbers is bigger pore throats)

  6. T2 distribution from service company

  7. Clay computation from NMR with porosity effective and Clay from open hole

  8. Total and effective porosity infilled with movable and immovable hydrocarbon

  9. Deterministic lithology based on silty shaley sand

  10. Saturation (Total and effective)

  11. Permeability

The tracks from left to right are as follows:

  1. Depth and bad hole indicator

  2. Gamma Ray and Rhoma (Matrix density)

  3. Resistivity

  4. Neutron-Density-PEF

  5. HRP computed NMR bins (Higher numbers is bigger pore throats)

  6. T2 distribution from service company

  7. Clay computation from NMR with porosity effective and Clay from open hole

  8. Total and effective porosity infilled with movable and immovable hydrocarbon

  9. Deterministic lithology based on silty shaley sand

  10. Saturation (Total and effective)

  11. Permeability

The tracks from left to right are as follows:

  1. Depth and bad hole indicator

  2. Gamma Ray and Rhoma (Matrix density)

  3. Raw NMR Echo's

  4. Schlumberger bins with PHIT from HRP analysis overlaid

  5. Schlumberger derived T2 distribution

  6. HRP computed NMR bins (Higher numbers is bigger pore throats)

  7. T2 distribution derived from NMR

  8. Clay computation from NMR with porosity effective and Clay from open hole

  9. Total and effective porosity infilled with movable and immovable hydrocarbon

  10. Deterministic lithology based on silty shaley sand

  11. Saturation (Total and effective)

  12. Permeability computed from both T2 distribution and open hole logs using coates


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