[Techlog Exercises] Petrophysics Workflow Printing

Techlog Petrophysics Workflow Printing

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[Techlog Exercises] 3 Computing volume of shale, porosity and saturation using Quanti.

 Computing volume of shale, porosity and saturation using Quanti

Steps: 

- Filter on Dataset

- Invoking the bad hole flag method 
- Select zones 
- Manual input of the parameters 
- Apply type, Automatic launch and Cascade mode 
- Saving the output 
- Computing volume of shale using the Gamma ray method 
- Graphical adjustment of the parameters 
- Using the histogram for end points setting 
- Computing volume of shale using the neutron-density method 
- Using the density-neutron cross-plot to tune the parameters/end points 
- Calculating a final volume of shale 
- Saving the Quanti workflow and parameter table 
- Computing total porosity using the density-neutron method 
- Saturation calculation using Archie’s method 
- Using the wheel to adjust the Rw value 
- Saving Quanti workflow and parameters
- Multi well Quanti 
- Monte Carlo

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[Techlog Exercises] 2 GRAPHICS DISPLAYING LOGS IN A DEPTH PLOT,CROSS PLOT,HISTOGRAM

In this part of the Tutorials, we introduce a non exhaustive list of the basic graphical options available in Techlog. This module is named TECHPLOT

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[Techlog Exercises] 1 QC Field – Data Preparation Tutorial.

QC Field – Data Preparation Tutorial

in this file :

Exercise 1: Harmonisation of dataset names
Exercise 2: Management of Families
Exercise 3: Management of the units of one or more variables
Preferred process .
Check and (re-)assign units for a single variable: .
Exercise 3.1
Exercise 3.2
Exercise 4: Convert units
Exercise 5: Management of Aliases .
Exercise 6: Build a harmonized dataset in each well
Exercise 7: Copying variables to other datasets
Exercise 8: Copying of variables from dataset to dataset in multi-well mode
Exercise 9: Normalisation .
First step: Data focus .
Second step: Well group definition.
Third step: Crenel Variable .
Fourth step: Refine .
Fifth step: Normalisation. .

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[Techlog Exercises] 1 PETROPHYSICAL GROUPS, PETROPHYSICAL LOGS AND PC ANALYSIS

PETROPHYSICAL GROUPS, PETROPHYSICAL LOGS AND PC ANALYSIS

In this tutorial, we introduce a non exhaustive list of the options available in Techcore module. The work flow that will be presented here is as follow:
- Create a new project and import all data needed (numeric and alpha numeric data, zonation, pictures, aso)
- Check the validity and coherency of the data
- Creation of petrophysical log by interval of representativity and by kriging
- Determine petrophysical groups using as many parameters as you want but at least Phi, K and Pc vs Sw data. Hyperbolic tangent parameters can be used also.
- Define saturation functions for each PG, using different methods: try hyperbolic tangents, Buckley-Leverett, and if these methods are not satisfying, try WWJ
- When satisfied with your saturation model, propagate PG classification to first core data, then to the entire zone of interest using correlation with another classification or log responses

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[Techlog Tutorials] 7Using a Python script to create Well Properties Date.

Using a Python script to create Well Properties Date:

In this tutorial it is assumed that the requisite Python script (wellPropertyZonePositions_v12.py) already exists; this tutorial does not cover the creation of a Python script.

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[Techlog Tutorials] 6 K.mod© – modelling/repair of core and/or log data.

K.mod© – modelling/repair of core and/or log data

The main objective when using K.mod© is to create a network model to predict the values of a desired formation property (e.g. permeability), or the values of a desired logging curve, from a combination of input log data. In the first case, the objective would be to predict the formation property outside cored intervals whilst in the second case the objective would be to create modeled curve data to infill a target curve over just those intervals in which the target data were affected by e.g. bad hole conditions.
 K.mod is a “Multilayer Perceptron” (MLP) type of neural network. It operates on the principle of back-propagation of errors to modify the choice of nodal weight factors for each node in a chosen layered design.

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[Techlog Tutorials] 5 IPSOM© – Characterization of Core/Log data Date.

IPSOM© – Characterization of Core/Log data Date:


The Self Organizing Map (SOM) is a tool for classifying multivariate data samples according to the “patterns” (or multivariate responses) to be found within the data. As such, the method proposes an “unsupervised” classification of a set of input data.

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[Techlog Tutorials] 4 Saturation modelling in Techlog.

Saturation modelling involves creating relations (or tables) that express saturation as a function of Capillary Pressure or height, and possible other reservoir properties. This relation is then used to calculate saturations in Static and dynamic reservoir models. Creation of Saturation Models is an integral part of the Petrophysical workflow and an efficient workflow in Techlog is required to avoid time-consuming Excel solutions. This document describes a set of agreed functional requirements.

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[Techlog Tutorials] 3 Data Editing

Index Dataset Creation .

TVD Computation.

Merging Datasets .

Graphical Data Editing .

Smooth, Differentiate, Integrate, Interpolate Curves .

Smooth .

Smooth with missing values .

Median Smooth .

Derivative smoothing .

Linear Interpolation.

Spline .

Integration .

Outliers Cleaning.

Despiking .

Data Editor.

Data View.

Curve creation by calculation..

Copy + Paste .

Link to MS ExcelTM.

Discretizing Quantitative curves .

Creation of an “Array” curve.

Column extraction from an “Array” curve .

Search and Replace functions .

Variable View.

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[Techlog Tutorials] 2 Data preparation – Data clean up

In that tutorial:

DATA CLIPPING

CUTTING/SPLITTING CURVES

SPLICING AND MERGING.

DEPTH SHIFTING
BLOCK SHIFTING

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[Techlog Tutorials] 1 Data Import and Data structure.

Schlumberger Techlog Software Review

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Screenshot of Schlumberger Techlog running on Windows 7 (wikimedia.com)

Techlog is a Schlumberger owned Windows based software platform intended to aggregate all the wellbore information. It allows the user to interpret any log and core data. It addresses the need for a single platform able to support all the wellbore data and interpretation integration workflows, reducing the need for a multitude of highly specialized tools. By bringing the whole workflow into a single platform risk and uncertainty can be assessed throughout the life of the wellbore.





History of TechlogTechlog software was developed in Montpellier (South of France) by a company called Techsia. Techsia were formed in 2000. The first version of Techlog was commercially available in 2002. Techlog was developed to have a familiar modern interface providing easy visualization and interaction of all the data, with a pre-arranged workflow that enabled less experienced users to follow, Techsia made the multi-well interpretation more accessible to all technical experts. In 2009, Schlumberger acquired Techsia and the Techlog platform and they currently support and market Techlog. Techlog offers new functionality in each new release, not only in petrophysical and geological interpretation but also geomechanics interpretation, uncertainty and links to the industry standard platform like Petrel. Techlog also has the new acoustics module which will add much more functionality into the application.


Versions

Techlog 2010.2

The Techlog 2010.2 released November 2010 added GeoFrame ELAN processing algorithms inside Quanti.min and the module was renamed to Quanti.Elan.

Techlog 2011.1

The Techlog 2011.1 released May 2011 and added a new Pore Pressure module.

Techlog 2011.2

The Techlog 2011.2 released January 2012 and added new Wellbore Stability and Acoustics modules.

Quick Informations
Original author(s)	Techsia
Developer(s)	Schlumberger
Initial release	March 3, 2002; 11 years ago
Stable release	2011.2.2 / June 27, 2012; 8 months ago
Development status	Active
Written in	C++/Qt and Python
Operating system	Microsoft Windows (XP SP2 and later)
Platform	x64 and Intel x86 - 32-bit
Size	177.03 MB
Available in	5 languages
License	Proprietary
Website Non-official tutorial site	www.slb.com/Techlog techlog-tutorials.blogspot.com

Software Download informationwe are sorry you can't download the Techlog software from this site,you should buy it or contact schlumberger to get a training version for academic uses only.

Techlog 2011.2 is available for download from the Software Download Center(SDC), within the Support Portal.

To check the software type you are eligible to download (based on country), click here. Users in all locations are able to access patch releases, release documentation and datasets.

More information

For more details, refer to the Techlog documentation page and the Version area within the Software Support Portal.

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                                            Wait for our Techlog tutorials.......comming soon

The first tutorial PDF please wait for the Video 

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References :
schlumberger site
weikipedia.com