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  Oil well sonic logging/measuring tool hardware design

  Sonic logging data capture/analysis sofware design

  Oilfield servic robot development

The main work of the Hardware Development Group is to design tools that are capable of enduring the severe high pressure and high temperature environments in oilfields and oil wells, and to transfer developed technologies to the manufacturing department. These include;
- Acoustic/mechanistic modeling of oil well interior environment including gauges and formations
- CAD/CAE aided mechanistic design/modeling
- Electrical circuit design (power, data communication, sensor/oil pressure drive, etc.)
- Performance evaluation of basic technologies (such as sensor) and logging systems
- Environmental testing such as temperature, pressure and oscillation
- Performance Evaluation of products in the field

The responsibility of the Software Development Group is to develop software to capture and analyze data from sonic tools developed by SPL. Development work is performed on MAXIS (Windows) and GeoFrame systems (Unit/Linux) using the latest workstations and PCs.

The MAXIS System controls the logging tool inserted into the well hole to a depth of thousands of meters, transfers measurements to the ground by telemetry, and processes data in real time. The MAXIS system enables customers to study formations in real time. The captured data is sent to the analysis center more detailed analysis and evaluation activities to be performed later using GeoFrame.

In sonic analysis, to evaluate P wave and S wave speeds, fractures that pass through the oil well, and formation penetration, signal processing is performed on waveform data based on acoustical physics. By analyzing dispersant waves, it becomes possible to obtain more information about the surrounding environment, such as anisotropy, nonhomogeneity and stress from formations. We are now working to visualize more distant formations in high resolution by analyzing waveform data received from multiple sensors. With the increase in data volume and consequent advances in analysis technologies, the role of software is growing more and more important.

Dipole Shear Sonic Imager (DSI)

Dipole Shear Sonic Imager combines dipole-based technology with the latest monopole developments into one system, providing the best method available today for obtaining borehole compressional, shear and Stoneley slownesses (Slowness is the reciprocal of velocity and corresponds to the interval transit time measured by standard sonic tools).

Slim Cement Mapping Tool (SCMT)

Slim cement Mapping Tool measures the amplitudes and transit times of sound waves traveling between the transmitter and receivers from which information can be obtained for evaluating the quality of cement behind the casing.

Hitoshi Tashiro
Sonic/Automation Descipline Manager
Mr. Sunaga
Shinichi Sunaga
Software Engineer
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