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:
Depth and bad hole indicator
Gamma Ray and Rhoma (Matrix density)
Resistivity
Neutron-Density-PEF
HRP computed NMR bins (Higher numbers is bigger pore throats)
T2 distribution from service company
Clay computation from NMR with porosity effective and Clay from open hole
Total and effective porosity infilled with movable and immovable hydrocarbon
Deterministic lithology based on silty shaley sand
Saturation (Total and effective)
Permeability
The tracks from left to right are as follows:
Depth and bad hole indicator
Gamma Ray and Rhoma (Matrix density)
Resistivity
Neutron-Density-PEF
HRP computed NMR bins (Higher numbers is bigger pore throats)
T2 distribution from service company
Clay computation from NMR with porosity effective and Clay from open hole
Total and effective porosity infilled with movable and immovable hydrocarbon
Deterministic lithology based on silty shaley sand
Saturation (Total and effective)
Permeability
The tracks from left to right are as follows:
Depth and bad hole indicator
Gamma Ray and Rhoma (Matrix density)
Raw NMR Echo's
Schlumberger bins with PHIT from HRP analysis overlaid
Schlumberger derived T2 distribution
HRP computed NMR bins (Higher numbers is bigger pore throats)
T2 distribution derived from NMR
Clay computation from NMR with porosity effective and Clay from open hole
Total and effective porosity infilled with movable and immovable hydrocarbon
Deterministic lithology based on silty shaley sand
Saturation (Total and effective)
Permeability computed from both T2 distribution and open hole logs using coates