The newly developed logging instrument of Daqing O

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Recently, Daqing Oilfield has made a new breakthrough in logging tools for production and reservoir evaluation of thin and poor reservoirs. Daqing drilling & logging company has successfully developed high-resolution density logging tools and obtained practical national patents, which provides the necessary technical support for the continuous and stable production of 40million tons of Daqing Oilfield

Daqing oil field is the largest oil field in China. After 51 years of exploration and development, the exploration and development of oil and gas reserves in thin and poor layers has become one of the main objects for Daqing oil field to increase production and tap potential. Density logging tool is an instrument that can calculate the formation density by measuring the natural gamma ray intensity in open hole well, analyze the formation structure and find out the thin oil and gas layer. With the complexity of the underground conditions of the oil field and the continuous updating and development of technology, Daqing drilling & logging company found that the resolution of the existing density logging tools could not meet the needs of fine geological evaluation of the oil field reservoir. The technical experts of the logging company upgraded the original dual source spacing to long, medium and short three source spacing, and obtained more detailed formation information by shortening the source spacing, supplemented by modern digital signal processing technology and mechanical structure optimization design, The layering ability of the instrument is effectively improved. After five years of research and development, the new graphene flame-retardant EPS material was the first to be produced in China. It adopted the industrialization test of 18 carbon fiber composite fan blades developed by SaiFeng company and ceramic matrix composite turbine components developed by General Electric Company of the United States. Daqing drilling company finally successfully developed a high-resolution density logging tool at the end of 2010 and obtained a practical national patent at the beginning of 2011

according to the technical personnel of Daqing drilling & logging company, the successful development of the high-resolution density logging tool not only provides necessary support for the stable production of crude oil in Daqing Oilfield, but also provides necessary help for the exploration and development of thin interbedded oil and gas in other oilfields in China. It has a broad prospect of using the oil delivery valve of the electronic universal testing machine as a shunt flow regulating valve

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