GEOLOGY to your DESKTOP TM

Chris Jacobson

Talk Topics

• Common historical data and workflows

• Mudlog object coverage for wellsite and operations geology workflows

• Plugging the wellsite geologist into the data pool • automating the pull of LWD/MWD and SDL data• Feeding geological interpretations back to the data pool

Common Historical Wellsite / Operations Geology Dataflow

- Poorly formatted data files

- Requires manual file generation by service company

- Requires manual loading by the geologist

WELLSITE

LAS FILES

ASCII FILES

OPS BASE

Manual input of lithology data into office databases -

Manual entry of formation top picks into office databases -

Restricted sharing of geological information -

COMMON PROBLEMS COMMON DRAWBACKS

US

B K

EY

GEOLOGICAL APPLICATION

EMAIL

WELLSITE LOG

DOCUMENTINTERPRETED LITHOLOGY &

DESCRIPTIONS

OPERATIONAL COMMENTS

GEOLOGICAL APPLICATION

DATA STORE

MAUAL INPUT OF DATA INTO THE

DATA STORE

DELAYED AND LIMITED AVAILABILITY TO OFFICE

APPLICATIONSQA / QC OF OPERATIONS

DATA

The mudLog Object usage for Wellsite / Ops Geology

• Lithology

• Qualifiers

• Lithology Attributes

• Lithology Descriptions

• Formation Tops

• Chronostratigraphy

• Average SDL Data by Geological Interval

FORMATION TOP

WITSML Enabled Wellsite / Operations Geology Dataflow

WELLSITE OPS BASE

INTERPRETED LITHOLOGY &

DESCRIPTIONS

OPERATIONAL COMMENTS

DATA STOREWITSML SEVERSERVICE

COMPANY DATA

WITSML

LOG

OB

JEC

T MU

DLO

G O

BJE

CT M

UDLOG

OBJE

CT

OPS GEOLOGY APPLICATIONS

REAL TIME VIEWERS

MUDLOG OBJECT

GEOLOGICAL MODELS

PETROPHYSICAL APPLICATONS

QA / QC OF OPERATIONS DATA

Summarized Benefits of mudLog Object Usage

• Mudlog object usage accelerates the delivery of geological data to decision making applications

• Automate or semi-automate the update of geological models and prognosed formation tops

• Feed petrophysics tools and workflows as soon as geological information is available

• Report on operational data over a geological interval to determine formation characteristics

• Deliver important operational comments and parameters

• Sharing and integration of geological prognosis, wellsite interpretations and cuttings lithology

• Standardized sharing of geological data eliminates inaccuracy