Transcript Document

Well Log Classification
Overview
Well Log Classification and
Cataloging
Well Log Data Repository
PWLS Class Repository
Well Log Catalog
Industry Data
Company Data
Activities Enabled by PWLS
Meta Data
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Classify well logs
Classify well log channels
Query for well logs
Query for well log channels
Classify a Well Log / Channel /
Parameter
• well log  well_log_service_class
– by interpretation of well log header
• channel  company_channel_class
– validate against dictionary
• parameter  company parameter spec.
– validate against dictionary
Genericity of classification
• original acquired data  primarily co. data
– company channel class
– well log service class
• computed data  primarily industry data
– well log curve class
– well log tool class
• processed data  combined approach
Query by technology
• goal: logs of a given technology
• industry classification:well log tool class
• company classification: well log service
class
• catalog: classification by well log service
class
• result: well log data
Query by channel attributes
• goal: channels of a given object, property,
function, ...
• industry classification:well log curve class
• company classification: company channel
class class
• catalog: classification by company channel
class
• result: well log data
Query by propery type
• goal: channels of a given property type
• industry classification: well log curve class
• company classification: company channel
class class
• catalog: classification by company channel
class
• result: well log data
Parameter-Augmented Query
• goal: well logs, subject to parameteric constraints
e. g. total_depth > 33000 ft
• industry classification: param spec (property type)
e. g. Bottom_Depth
• company classification: company parm spec e. g.
BOTTOM_DEPTH
• catalog: parametric classification e. g.
BOTTOM_DEPTH=44000(m)
• result: well log data
Existing Data
Well Log Data Repository
query
engine
Dictionary
Well Log Catalog
15:MDL : xxxxxxxxx
150:CDL : xxxxxxxxx
280:SLD : xxxxxxxxx
440:LDS : xxxxxxxxx
Queries
Well Log Data Repository
Where are my density logs? Dictionary
Well Log Catalog
15:MDL : xxxxxxxxx
150:CDL : xxxxxxxxx
280:SLD : xxxxxxxxx
440:LDS : xxxxxxxxx
Existing Data
PWLS
... density ...
Well Log Data Repository
query
engine
Dictionary
Well Log Catalog
15:MDL : xxxxxxxxx
150:CDL : xxxxxxxxx
280:SLD : xxxxxxxxx
440:LDS : xxxxxxxxx
Industry Data
Density : xxxxxxxxx
Acoustic : xxxxxxxxx
Neutron : xxxxxxxxx
Company Data
15:MDL : xxxxxxxxx : Density
150:CDL : xxxxxxxxx : Density
280:SLD : xxxxxxxxx : Density
440:LDS : xxxxxxxxx : Density