1. Oil and gas fields exploration and development technological services;
2. Logging data acquisition and interpretation;
3. Formation evaluation and hydrocarbon reservoir modeling;
4. Petroleum engineering technical services (drilling and workover, well completions, formation testing and technical services);
5. Oil fields chemicals, acid fracturing, and down-hole tools;
6. R&D, sales, and technical services for oil field equipments, instruments and meters, logging tools.