Dagang Oilfield Group successfully developed a variety of advanced exploration instruments

Dagang Oilfield Group Company has undergone a significant transformation in the past two years, focusing on both international procurement and independent development of oil exploration equipment. By embracing innovation and technological advancement, the company has successfully created advanced tools such as the HM-MWD wireless LWD inclinometer, the long-range sonic imaging logging tool, and comprehensive logging instruments. These developments have not only reduced the need for costly foreign equipment but also strengthened the technical foundation for petroleum engineering services. Historically, Dagang relied heavily on imported high-tech instruments, which were expensive and had long delivery times. More importantly, the dependency on foreign manufacturers limited control over maintenance and upgrades. To address this challenge, the company focused on enhancing its own R&D capabilities, leveraging both domestic and international scientific resources to develop proprietary high-tech instruments. In the field of directional well technology, the company previously imported 15 sets of MWD wireless drilling and inclination measuring devices, each costing around 6 million yuan. The lead time for these imports was typically about one year. In 2003, a dedicated team was formed to tackle key technical challenges such as vibration resistance, high-temperature performance, and precision. By early 2004, the HM-MWD wireless LWD instrument was developed and deployed in over 100 directional well measurement projects across domestic and international markets. Field tests confirmed that the device offers mature technology, long operational duration, and high efficiency in drilling operations. Another area of focus was the development of a far-detecting sonic imaging logging tool. Previously, the imaging tools used by the company had high accuracy but a limited detection range of only 5 meters, leaving gaps between reservoir analysis and wellbore data. To bridge this gap, Dagang initiated the development of a new tool with a longer detection range. Due to limited internal research capacity, the company collaborated with several domestic institutions and recruited renowned experts as consultants. Through meticulous planning, coordination, and execution, the far-detecting sonic imaging logging tool was successfully developed and passed expert evaluation at the beginning of this year. This tool can detect formations up to 10 meters away from the well axis, providing richer data for evaluating hydrocarbon reserves and reservoir structures. The project has resulted in 2 patents, 4 proprietary technologies, and 12 technical achievements, marking a major milestone in the company’s technological development.

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