SEISMIC DATA ACQUISITION
Seismic data acquisition has been carried out by Geophysical Operation Department with two Seismic Crews. Seismic Crew-1 having 5 M26 HD/623 B P type vibrators enabled GPS system is operated by "Vibroseis" method.

Seismic Crew-1 has been operating in 3D seismic data acquisitions with Sercel-408 UL type recorder and it has 12 receiver lines, 120 receiver channels, totally 1440 active recorder channel system.

In topographic surveys, Leica GPS 530 system is being used and required data quality control and preplanning studies are carried out by EGHAS software.

Seismic Crew-2 is operating with "Dynamite" as an explosive energy source. 13 Heavy-Weight Rigs (Iveco 6x6) Truck Mounted Drills are being used to locate the energy sources.

Sercel SN-388 type recorder is being used by Seismic Crew-2. This crew generally operates 2D and 3D Seismic data acquisitions. For 3D acquisitions, the crew can operate up to 6 receiver lines.

Seismic Crew-2 has been operating with Leica GPS 500 system as topographic instruments, while quality control and preplanning studies are performed by EGHAS software.

To increase the production rate, quality control procedures has been applied strongly by both seismic crews.

Furthermore, seismic field design, topographic quality control, recorder quality control and static analyses have been applied while performing Seismic Data Acquisition Services.

NON-SEISMIC DATA ACQUISITION

Gravimetric and Magnetic Surveys

Non-Seismic Data Acquisition surveys are carried out by one Gravity and Magnetic Acquisition Crew at Geophysical Operations Services.

Seismic Data Processing Systems

2D/3D onshore and offshore data processing have been realized by Focus and Geodepth softwares from Pradigm Company. Also, Thrustline Softwares by Geotomo Company have been used to solve problems in South Eastern Anatolia Thrust Zone.

SEISMIC PROCESS APPLICATIONS

• 2D/3D Conventional Seismic Process,
• Refraction Static (Linear and Non-Linear Tomographic Analysis),
• Signal Process,
• Improvement in Signal to Noise Ratio,
• Multiple Attenuation (RADON/SRMA),
• DMO,
• Pre Stack Time Migration,
• 2D/3D PreStack Depth Migration,
• Post Stack Depth Migration,
• 2D/3D AVO,
• VSP Process,
• Long Offset Seismic Line Process (2D PSTM and PSDM),
• Seismic Modelling.

INTERPRETATION SYSTEMS
For seismic, well and geological interpretations, UNIX based software of Landmark and Schlumberger companies has been used actively on the latest technology hardware. Software in both companies can be used for advanced seismic interpretation, mapping and well and geological data can be interactively used. On the other hand, advanced reservoir modelling and studies related to petrophysics can be carried out.

Except from Unix-based software, PC-based software also has been used commonly for seismic, well and geological interpretations. Furthermore, Geographical Information System (GIS) applications have been applied for any kind of mapping. Digitization paper maps to GIS environment are being realized with the highest quality to compose advanced geological mapping applications. Recently remote sensing analysis has been carried out for surface geology applications and correction of existing geological maps.

GIS AND REMOTE SENSING
Through the goal of carrying out remote sensing studies and producing necessary maps, ESRI products have been used. Also, ARBIS (Exploration Information System) allows the end user to browse or produce their own maps over intranet. Although ARBIS project has been structurally completed in 2005, data entrance is underway.

3D VISUALISATION AND INTERPRETATION CENTER
3D seismic ınterpretation and simulation system was put into operation in May 2005 in order to minimize the risk factor in hydrocarbon exploartion and to carry out integrated and more effective seismic data surveys in the interpretation systems through the goal of raising the discovery success ratio in new oil fields.

High technological hardware and equipments in the center allow users high quality visualization and an opportunity for advanced 3D interpretation in real time. The main purpose of this center is to establish a collaboration with different disciplines (exploration, drilling and production) and create a professional discussion environment for evaluation, quality control and decision making.