Laboratory Rock Characterization

Roberto Suarez-Rivera

Director of Schlumberger Innovation Center

Salt Lake City - Utah

March 21st, 2013

“Rocks matter”

Sc

hlu

mb

erg

er P

rivate

Q

Presentation Highlights

• Sampling strategy

• Rock characterization

• High-resolution measurements

• Propagation of properties to other scales

Sc

hlu

mb

erg

er P

rivate

Q

Sampling strategy

?

?

OK OK

OK

Sc

hlu

mb

erg

er P

rivate

Q

Sampling strategy

Rock Properties

Sc

hlu

mb

erg

er P

rivate

Q

Rock characterization

Sc

hlu

mb

erg

er P

rivate

Q

Rock characterization

Sc

hlu

mb

erg

er P

rivate

Q

Quantitative Geology

Thermal profiler for

thermal conductivity

Strength profiler for

unconfined strength

Sc

hlu

mb

erg

er P

rivate

Q

Example: Thermal Conductivity,

Unconfined Strength and CT-Number Thermal

Conductivity Unconfined Strength CT

Number

Core-HRA TC, UCS

Thermal Conductivity

Unconfined Strength

CT Number

Sc

hlu

mb

erg

er P

rivate

Q

Example: X-Ray Fluorescence - Elemental

Composition Measurements

Elements Measured: Mg, Al, Si, P, S , Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Zr, Mo, Ag, Cd, Sn, Sb, W, Hg, Pb, Bi, Th, U, and Le

● Lower Confidence ● Highest confidence

Sc

hlu

mb

erg

er P

rivate

Q

Example: Ionic Ca++ Salt Content Measurements

Index # Color

1 Brown

2 Light Blue

3 Green

4 Yellow

5 Red

6 Black

HRA classification based on XRF data

Ionic Ca++ salt profile

Si content

Sc

hlu

mb

erg

er P

rivate

Q

Distribution of XRF Elements in Core-HRA Classes

Index # Color

1 Brown

2 Light Blue

3 Green

4 Yellow

5 Red

6 Black

Sc

hlu

mb

erg

er P

rivate

Q

Relationship with geology

Sc

hlu

mb

erg

er P

rivate

Q

Quantitative geology and digital core

Texture Composition

Sc

hlu

mb

erg

er P

rivate

Q

Propagation of properties to other scales

Sc

hlu

mb

erg

er P

rivate

Q

Thank you