| Property |
Unit |
Definition |
| Added |
No Unit |
The time this particular datapoint was added. Compare Changed. |
| Additional Data |
No Unit |
Some additional data. What it means is often determined by Measurement type. |
| Analytic Quality |
No Unit |
0-6: 0 is poor quality, 6 is very good quality. |
| Ankerite |
% |
Part Ankerite. |
| Axial Pressure |
MPa |
No Definition |
| Calcite |
% |
Part Calcite. |
| Changed |
No Unit |
The time this datapoint was last changed. Compare Added. |
| Chert |
% |
Part Chert. |
| Chlorite |
% |
Part Chloride. |
| Compressional Velocity |
m/s |
The change over time of displacement in the same direction as the density wave. Symbol VP. Compare Shear Velocity. |
| Confined Pressure |
MPa |
PC. The environmental pressure on our piece of rock. Compare Pore Pressure. |
| Description |
No Unit |
A textual descriptions of the sample, maybe accompanied by photos. |
| Dolomite |
% |
Part Dolomite. |
| Dry Density |
g/(cm3) |
The density of the dry sample, i.e. without any pore fluid. Compare Grain Density and Saturated Density. |
| Fluid Type |
No Unit |
The fluid used to fill the pore space.:
| -1 |
: |
Not defined |
| 0 |
: |
Gas/Air |
| 1 |
: |
Water |
| 10 |
: |
Other |
| 11 |
: |
C12H24 Hydrocarbon |
| 12 |
: |
CO2 Gas |
| 2 |
: |
NaCl Brine |
| 3 |
: |
KCl Brine |
| 4 |
: |
Brine Mixture |
| 5 |
: |
Oil (Black) Light |
| 6 |
: |
Oil (Black) Heavy |
| 7 |
: |
Live Oil (Gas Sat.) |
| 8 |
: |
Refined Oil Product |
| 9 |
: |
Glycerine(/Water) |
|
| Grain Density |
g/(cm3) |
The average density of the grains that compose the rock. Compare Dry Density and Saturated Density. |
| Illite |
% |
Part Illite. |
| Kaolinite |
% |
Part Kaolinite. |
| Measurement Type |
No Unit |
| 1 |
: |
VP only, unknown direction |
| 10 |
: |
Unknown, occurs in DSDP rock samples |
| 11 |
: |
Unknown, occurs in DSDP rock samples |
| 2 |
: |
VP, vertical propagation |
| 3 |
: |
VP + one VS, unknown direction |
| 4 |
: |
VP + one VS, vertical propagation |
| 5 |
: |
VP + two VS, vertical propagation |
| 52 |
: |
Vertical and Horizontal VP and VS |
| 6 |
: |
VP + one VS, horizontal propagation |
|
| Mica |
% |
Part Mica. |
| Other category - 1. Name |
No Unit |
First additional data point: what |
| Other category - 1. Percent |
No Unit |
First additional data point: percentage or value |
| Other category - 2. Name |
No Unit |
Second additional data point: what |
| Other category - 2. Percent |
No Unit |
Second additional data point: percentage or value |
| Permeability |
md |
How much of a fluid of unit viscosity can flow through one unit length of rock under one unit applied pressure (hydraulic gradient). In short: how easy is it for a fluid to go through the rock. This definition can be taken to derive a unit in your favorite unit system (we use SI). Please note that Permeability is not the same as Porosity. The shape and connectivity of the pores have a big influence. |
| Plagioclase |
% |
Part Plagioclase. |
| Pore Pressure |
% |
PP. The pressure of the fluid in the pores. Compare Confined Pressure. |
| Porosity |
parts |
How big a part of the volume of the sample is fluid- or gas filled. However, definitions may vary for specific applications. For some usages, isolated pores may be considered part of the rock. Other complications arise regarding nonremovable fluid (oil/water) content. A porosity measure in the literature is meaningless without an exact definition what porosity we are talking about. |
| Potassium Feldspar |
% |
Part Potassium Feldspar. |
| Pyrite |
% |
Part Pyrite. |
| Quartz |
% |
Part Quartz. |
| Reference |
No Unit |
The reference: Where do we have the data from. |
| Sample ID |
No Unit |
A very short description of the sample. Compare Sample Name. |
| Sample Name |
No Unit |
A longer form of Sample ID. |
| Sample Type |
No Unit |
| AC |
: |
Coal: Anthracite |
| AD |
: |
Andesite |
| AN |
: |
Anhydrite |
| BC |
: |
Coal: Bituminous |
| BR |
: |
Breccia |
| BT |
: |
Basalt |
| CC |
: |
Coal: Unspecified |
| CG |
: |
Conglomerate |
| CH |
: |
Chert |
| CL |
: |
Clay |
| CLST |
: |
Claystone |
| DO |
: |
Dolomite |
| DOLS |
: |
Dolomitic Limestone |
| FDSS |
: |
Arkosic (Feldspathic) Sandstone |
| GN |
: |
Gneiss |
| GP |
: |
Gypsum |
| GR |
: |
Granite |
| HA |
: |
Salt (Halite) |
| LC |
: |
Coal: Lignite |
| LF |
: |
Lithic Fragments |
| LS |
: |
Limestone |
| LSCL |
: |
Calcareous Claystone |
| LSSH |
: |
Calcareous Shale |
| LSSHSS |
: |
Limy Clay-Rich or Shaly Sand (Calcareous) |
| LSSLST |
: |
Limy Siltstone |
| LSSS |
: |
Calcareous Sandstone (Shaly Limestone) |
| MB |
: |
Marble |
| QTZA |
: |
Quartz Arenite |
| QZ |
: |
Quartzite |
| RH |
: |
Rhyolite |
| RS |
: |
Rock Salt |
| SC |
: |
Schist |
| SH |
: |
Shale |
| SHLS |
: |
Argillaceous Limestone (Shaly Limestone) |
| SHSS |
: |
Argillaceous (Shaly) Sandstone |
| SL |
: |
Slate |
| SLST |
: |
Siltstone |
| SS |
: |
Sandstone |
| SSDO |
: |
Sandy Dolomite |
| SSLS |
: |
Sandy Limestone |
| SSSH |
: |
Sandy Shale (Sandy Claystone) |
| TF |
: |
Tuff |
| XX |
: |
Non Rock |
|
| Saturated Density |
g/(cm3) |
The density of the rock, saturated with fluid. Compare Grain Density and Dry Density. |
| Saturation |
% |
How much of the porespace is saturated. |
| Shear Velocity |
m/s |
The velocity of the shear wave. The shear wave is displacement that occurs perpendicular to the direction of the density wave.Symbol VS. Compare Compressional Velocity. |
| Siderite |
% |
Part Siderite. |
| Smectite |
% |
Part Smectite. |
| Some Other Data? |
No Unit |
Some other data. Look at measurement type to know what it represents. |
| Temperature |
'C |
Temperature when the measurement was taken. |
| Total Carbonate |
% |
Total amount of Carbonates in sample. |
| Total Clay |
% |
Total amount of Clay in sample. |
| Total Feldspar |
% |
Total amount of Feldspar in sample. |
| Unreliable Data |
No Unit |
The reason why the data might be unreliable:
| -1 |
: |
Not defined |
| 0 |
: |
Pp is bigger than Pc |
|