Code: CPD-06
Session One: IOGP P1 formats - Storage and exchange of post-survey positioning data.
P1 formats have been published since 1970's, with a series of updates in 1980's, 1990's and 2010's. Further modifications have been released since. Understanding these formats plays a fundamental role in data management and data compliance. Correctly formatted data enables fully automated QA/QC of the contents and the identification of data failing tolerances and thresholds set by clients.
What is the purpose of storing this data? What does this data represent? How is the positioning data used in conjunction with geophysical data?
A general introduction to some geophysical concepts is provided to understand the role positioning data plays in surveying the sub-surface rock formations.
Session 1a: P1 Data header - Mandatory fields
This session will discuss the following topics:
- Storage of geodetic parameters associated with the coordinates contained in the data block.
- Understanding the storage of implicit and explicit geodetic parameters.
- Understand the importance of the header containing the correct details.
Session 1b: P1 Data block - Mandatory fields
This session will discuss the following topics:
- Record identifiers, line names, event numbers and event coordinates.
- Storage of receiver groups associated with a seismic survey.
- Storage of OBN data versus marine towed streamer activities.
Session Two: IOGP P6 formats – Storage and exchange of seismic binning grid data
P6 formats have been published since 1990, with a major new release in 2010's. This format plays a fundamental role in the data management of seismic trace data used to image the sub-surface rock formations.
Session 1c: Pre-survey activities
This session will discuss the following topics:
- How to design a seismic binning grid in relation to the geographic area over which the seismic survey is required to image the sub-surface rock formations.
- What parameters are mandatory to define the seismic binning grid and how are they stored?
- What role does each parameter play in the definition and how does it link to the geophysical objectives of the survey?
- How are the survey perimeters defined? How are the names and what is their purpose?
Session 1d: Post-survey activities
This session will discuss the following topics:
- Once a survey is completed the same format is used to describe what was achieved in the survey with respect to the data captured over what area and fold coverage attained.
- An introduction to seismic binning technique is given to describe how the positioning data (captured in the P1 format) is used to compute fold coverage and how it builds up because of the geometry of the seismic equipment deployed.
- How is the seismic binning grid used during seismic processing? What potential modifications are made to the seismic binning grid and what details need to be captured to reflect any changes between acquisition and processing?
Session times
08:30 – 09:00
Registration
09:00 – 10:30
Session 1a — P1 data header - Mandatory fields
10:45 – 12:15
Session 1b — P1 data block - Mandatory fields
13:15 – 14:45
Session 1c — P6 - pre-survey activities
15:00 – 16:30
Session 1d — P6 - post-survey activities
Who should attend
Geomatics, geoscientists, engineers, data loaders. Appropriate for beginners and more experienced geoscientists alike. No previous knowledge is assumed.
Presenters
Two from: Matthew Edge, Nils Lundstrom, Martin Rayson, Samuel Webb.
Price & includes
RM 1,200 per person. Includes presentation pack, lunch, morning coffee and afternoon tea.
Kuala Lumpur, KLCC area
Code: CPD-07
Positions captured in the P files are of reduced value if they are not associated with an authorized datum related to a recognized coordinate reference system. The sessions presented here describe a high-level definition of the geodetic building blocks required to uniquely define datums and coordinate reference systems used in our activities.
The International Oil and Gas Producers geomatics committee are the custodians of the EPSG.org, which is a database containing an extensive collection of the geodetic objects used to define reference systems and the coordinate operations that convert positioning data from one system to another.
Session one: What are the main geodetic building blocks that comprise the datum and CRS definitions?
This session will discuss the following topics:
- With reference to the EPSG geodetic parameter registry, we will investigate the main object tables it contains using Geo Essentials software package (this will be provided to all attendees).
- How are these objects assembled to create the unique definitions of the coordinate reference systems used in navigation and positioning related activities.
- This will be accompanied by a general overview of the definitions of each of the objects used and their relevant to our positioning activities.
- Examples will be provided for local Malaysian and International definitions commonly used in our activities.
Session two: What are the main geodetic building blocks that comprise the coordinate operations?
This session will discuss the following topics:
- Coordinate operations are usually assigned into one of three categories, which are known as conversions, transformations and point motions. Such operations are conducted between a Source CRS and a Target CRS. When they share the same datum the coordinate operation is a conversion and when they differ it is a transformation.
- This session introduces how such coordinate operations are defined, where they are used and why they are used.
- This will be accompanied by a general overview of the object definitions and their relevant to our positioning activities.
- Examples will be provided for local Malaysian and International definitions commonly used in our activities.
Session times
08:30 – 09:00
Registration
09:00 – 10:30
Session 1a — Geodetic building blocks, datums
10:45 – 12:15
Session 1b — Geodetic building blocks, CRS
13:15 – 14:45
Session 1c — Coordinate operations of type conversion
15:00 – 16:30
Session 1d — Coordinate operations of type transformation
Who should attend
Geomatics, geoscientists, engineers, data loaders. Appropriate for beginners and more experienced geoscientists alike. No previous knowledge is assumed.
Presenters
Two from: Matthew Edge, Nils Lundstrom, Martin Rayson, Samuel Webb.
Price & includes
RM 1,200 per person. Includes presentation pack, lunch, morning coffee and afternoon tea.
Kuala Lumpur, KLCC area
Code: CPD-08
Positioning data covers a wide spectrum of activities, including seismic acquisition, geo-hazard surveys, rig moves and more. Regardless of activity, a position is of little value unless it is accompanied by some form of quality indicators.
A collection of points along a line indicates some form of activity took place along that line, for example acquisition from a survey. For a line to be considered acceptable, the points thereon must demonstrate a repeated geometric pattern of where the observations were conducted.
Whilst such QA/QC activities have traditionally been conducted manually, these processes are being replaced by automated functionality to identify discrepancies within the data.
Session 1: Traditional QA/QC activities.
This session will discuss the following topics:
- Definition of a quality assurance workflow describing as a series of steps at which data assessments are performed and tested against a pre-defined set of quality control tolerances.
- Introduction to the common quality control measures used in the assessment of navigation and positioning data.
- Examine the purpose of the QA/QC process: to identify data that does and does not comply with an expected set of business rules.
- How are the usefulness and correctness of the data identified? Against what metrics. for the activities for which it was required.
- Editing data that is non-compliant.
- Examples of line data from both seismic acquisition and hydrographic surveys are illustrated and tested against a set of pre-defined business rules.
- Data formats (P1 and P6) are provided such that the exchange of files between contractor and clients prevents pro
Session 2: Automated QA/QC activities.
This session will discuss the following topics:
- The traditional methods previously described may still form the backbone of many processes. However, the adoption of automated routines will enable data to the assessed independent from an analyst. This session will introduce a series of automated QA/QC routines.
- Scripts are examined for seismic navigation and position data. What tasks do the scripts perform and what information do they return?
- Scripts are examined for seismic binning grids. What tasks do the scripts perform and what information do they return?
- Examine the reports generated from the pre-set tolerance measured used. What needs to be reported, to ensure the data is fit for purpose by the project teams.
Session times
08:30 – 09:00
Registration
09:00 – 10:30
Traditional QA/QC activities: session 1a
10:45 – 12:15
Traditional QA/QC activities: session 1b
13:15 – 14:45
Automated QA/QC processes: session 1c
15:00 – 16:30
Automated QA/QC processes: session 1d
Who should attend
Appropriate for beginners and more experienced geoscientists alike. No previous knowledge is assumed.
Presenters
Two from: Matthew Edge, Nils Lundstrom, Martin Rayson, Samuel Webb.
Price & includes
RM 1,200 per person. Price includes presentation pack, lunch, morning coffee and afternoon tea.
Kuala Lumpur, KLCC area
Content for this session will be available soon.
