Daqing Oilfield newly developed logging tool won practical national patent

Recently, a new breakthrough has been made in the well logging and evaluation logging tool for the Dachao oil and gas reservoir in Daqing Oilfield. Daqing Drilling Rig has successfully developed a high-resolution density logging tool and obtained a practical national patent, which is necessary for the sustained and stable production of 40 million tons in Daqing Oilfield. Technical protection.

Daqing Oilfield is the largest oil field in China. After 51 years of exploration and development, the exploration and development of thin-bed oil and gas reserves has become one of the main targets for increasing production and tapping potential in Daqing Oilfield. Density logging instrument is a kind of instrument that can calculate the stratum density by measuring the intensity of natural gamma ray in the open hole, analyze the stratum structure, and find the thin layer of oil and gas. With the complication of the underground conditions of the oilfield and the continuous development and upgrading of technology, Daqing Drilling Exploration Wells found that the existing density logging instrument resolution cannot meet the needs of the geological evaluation of the oil reservoir, and the logging company’s technical experts will replace the original The source distance is upgraded to long, medium, and short source distances, and more detailed formation information is obtained by shortening the source distance, supplemented by modern digital signal processing technology and mechanical structure optimization design, which effectively improves the delamination capability of the instrument. After five years of research, research and development, and testing, Daqing Drilling finally successfully developed a high-resolution density logging tool at the end of 2010, and obtained a practical national patent in early 2011.

According to the technical personnel of Daqing Drilling Exploration Well, the successful development of the R&D high-density logging tool not only provides the necessary support for the stable production of crude oil in Daqing Oilfield, but also can provide necessary assistance for oil and gas exploration and development of thin interbeds in other oil fields in China. Broad application prospects.