Copyright 2006 POSC Fluid Properties John Bobbitt Mar 23, 2006.

© Copyright 2006 POSC

Fluid Properties

John BobbittMar 23, 2006


Background

• ExxonMobil implemented an XML schema solution for uniformly transferring fluid property lab reports.

• In 2004, ExxonMobil asked POSC to evolve their work into industry standards.

• Last autumn, we adapted the XML material within the WITSML architecture


Generalized Lab Test Model

SampleContext: Who, what, when, where

Sampling info and conditions

Tests HeaderTest metadata, equipment, parameter settings, lab procedure

Result Tables

Sample Results Derived sample properties,

interpretations.

Raw Data

Documents


Apply to Fluid Sample

Fluid Sample

Saturation Test

Constant Composition Expansion Test

Constant Volume Depletion Test

Differential Liberation Test

J Curve Test

Transport Properties Test

Separator Test


Each Test

A Test

Test Steps


Generalized Lab Test Model

Sample

Tests Header

Result Tables

Fluid Properties

Raw Data

Documents

Fluid Sample

The 7 Tests

The Test Steps


Applying Generalized Lab Test Model to Fluid Properties

• Several tests are modelled.• Determine PVT properties, phase curves,

sample constituents/ composition.• General sampling context (wellhead, separator

tank, completion, etc)


Next Step: Form Work Group• Initial version of schema has been developed

– Follows the general lab test pattern– Need subject expert input to ensure that everything is placed

correctly• Refine concepts about the tests

– Need input for definitions and test understanding• Sample implementations

– Positive indications from ExxonMobil to participate and to encourage others to do so

• Can lead to review and publication as add-on to WITSML Production Standards

Copyright 2006 POSC Fluid Properties John Bobbitt Mar 23, 2006.

Documents

Transcript of Copyright 2006 POSC Fluid Properties John Bobbitt Mar 23, 2006.