Seismic Processing Workstation

(SPW)

ENGINEERING PACKAGE

SPW Engineering system is the complete SPW library of tools and steps in a smaller package. SPW Engineering is capable of handling up to 120 channels per record with a maximum of 50,000 traces per dataset.SPW Engineering includes the complete 2-D and 3-D processing suite. 

SPW offers an extensive processing library of algorithms backed by many years of use in the processing of high resolution seismic.

The SPW Engineering system is a Windows 95/98/NT ® processing system that includes the following

Components:

FlowChart - An interactive processing flow builder with built in support for spreadsheet display and editing of auxiliary data such as geometry, velocity picks, FK filters, mutes.

Executor - A multi-threaded, multi-CPU program for executing the flows built in the FlowChart module.

SeisViewer - A full featured, user definable seismic display and montage product. Plots using standard PC print/plot drivers avoiding expensive Unix solutions.

Tape Utility - A high performance tape analysis, copy, and reformat utility program. Provides tools for decoding data formats and handling problem tapes.

FlowChart

• Interactive Graphic User Interface

• Build and Edit Processing Flows

• Parameter Entry Dialogs

• Spreadsheet Data Interface

Client for Executor Server

The SPW Flowchart allows you to graphically build your processing streams. All of the flowchart steps are maintained in a floating list. Building a flow is a simple process of dragging and dropping the steps onto a flowchart window. The linking tool lets you define the data links between processes by drawing the connection. To enter the parameters for a processing step, you double click with the left mouse button. To open a spreadsheet of the seismic data headers or any of the auxiliary data files, you double click on the data step with the right mouse button. The spreadsheet window allows full editing and display of all of the datatypes. The auxiliary data types can also be customized by modifying a few parameters in the data step dialog.

Floating list of Processing steps available

Screen showing the FlowChart screen (on the left) and Processing Lists

Executor

• Seismic Execution Server

• Client-Server model

• Multi-CPU Enabled

Designed for Expansion

The SPW Executor is a background process with a simple console window interface. Despite the simple appearance of the interface, this is the heart of the SPW system.

The Executor runs like a daemon process. When it sees a compiled flow output by the Flowchart in the local directory, the Executor reads the flow and automatically saturates all of the CPU's on the system with threads to process the data.

The Executor can run on the same system as the Flowchart and the other SPW components or it can run on a high end server system. For large processing jobs, a 2 or 4 CPU Windows NT server system is highly recommended. Each of the processing steps for the Executor is a separate DLL which enables simple updates and expansion of the processing library. One Executor running on a server system can service multiple users on inexpensive desktop PCs.

Screen showing the Executor Daemon processing requests

SeisViewer

Seismic Data Display

Unlimited Annotation

Montage Capabilities

Plotting & BMP file Export

Interactive Picking & Editing

Drawing Tools

Does your current seismic montage tool allow you to access the actual seismic data and change the AGC?

SeisViewer Will!!!

Save Time - Building on over ten years of experience working with interactive processing, Parallel Geoscience Corporation designed the SeisViewer to meet the demanding display and plotting needs of interpreters and processors. Designed from the beginning to allow you total control in the layout of your final display, SeisViewer also allows you to use default templates for rapid construction of normal seismic presentations. The point and click user interface allows you to rapidly build complex seismic displays on your desktop or laptop personal computer. Output can be directed to any printing or plotting device which uses a standard PC system print driver as well as to BMP files. Since SeisViewer works off the actual seismic data, not a bitmap, you can quickly and easily modify your display.

 

Screen from SeisViewer showign Seismic section and header display on interactive canvas

Save Money - With SeisViewer you can do your display, plotting and montage work on inexpensive PC's. Since you can output directly to any printing or plotting device which uses a standard PC system print driver, there is no need for expensive Unix plot drivers. Unix display and plotting problems are now history. You can also output standard bitmap image files (BMP format) at high resolutions for importing into drafting and drawing programs. Don't try this with your CGM+ files, only expensive seismic specific programs can handle this special format. Use SeisViewer and take advantage of the multitude of inexpensive and extremely powerful PC drafting and drawing programs.

SPW Tape Utility

Tape & FIle Copy

Verification of Copies

SEG Disk & Tape Formats

Interactive Tape Control

Interactive Tape Analysis

Analysis - Unknown or problem tapes can be quickly and easily analyzed. Data can be displayed in ASCII, EBCDIC, Integer, Floating Point, or hex formats for finding and resolving problems. Decoded SEG formats may be displayed as well.

Copy - Powerful operations such as tape-to-tape copies, tape-to-disk-to-tape copies, and simultaneous multiple tape outputs can be performed with point-and-click ease. These advanced features save time, minimize wear and tear on media, and prolong equipment life. Copies may be verified on a bit by bit basis to ensure absolute accuracy. A console monitor reports progress and errors. You can output a listing file showing contents and any problems encountered, which may be delivered to your customer.

Control - With the interactive tape positioning capability, you can skip over bad records or files. You always know the current position on the tape and can skip tape files and blocks with a single click of the mouse.

Reformat - You can read all standard SEG formats and even perform VibroSeis correlation as part of a reformat or demultiplex. The data reformatting easily handles most nonstandard seismic tape formats using the customization features. You can simply subset a 3-D dataset by range limiting your output. The solution tmost nonstandard tape formats is but a few simple mouse clicks away.

Screen of the Tape Utility control panel

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