China's largest logging equipment base forms produ

2022-10-19
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Get rid of the trapped situation, China's largest logging equipment base forms productivity

get rid of the trapped situation, China's largest logging equipment base forms productivity

China Construction machinery information

Guide: on August 4, there was a busy scene in the array induction workshop located in the complete equipment industrial chemical room of China Petroleum Group logging Co., Ltd. (hereinafter referred to as logging company) in Xi'an high tech Zone, Technicians are packing three sets of newly released array induction imaging logging tools and sending them to standard wells for testing. This is logging company 7

On August 4, there was a busy scene in the array induction workshop located in the complete equipment industrial chemical room of China Petroleum Logging Co., Ltd. (hereinafter referred to as the logging company) in Xi'an high tech Zone. Technicians were packing three sets of newly offline array induction imaging logging tools and sending them to the standard wells to expand the scope of foreign investment. This is the first batch of instruments produced on the new production line after the logging company moved to the industrialization base in early July. This indicates that the largest industrialization base of logging equipment in Asia has been put into practical application and produced benefits

It is understood that over the years, advanced logging technology and equipment have been mastered by foreign countries, and foreign monopoly and blockade of technology have seriously restricted the development of logging technology in China. Tang Tianzhi, director of the technology center of the logging company and chief expert of major scientific and technological projects of CNPC, said, "foreign monopoly has caused the overall technical level of logging in China to be low, the coincidence rate of oil and gas reservoir interpretation is relatively low, and the role of oil and gas evaluation is not played enough to meet the overall needs of oil and gas evaluation of complex reservoirs."

moreover, the monopoly and blockade of advanced technology have also brought many obstacles to the logging evaluation of oil and gas exploration and development in China. "First of all, the advanced logging technology cannot be introduced in time, which restricts the overall oil and gas evaluation ability and level of our country, especially the effective evaluation of low porosity, low permeability, low resistivity, complex pore structure and complex lithologic reservoirs. Second, even if some foreign logging equipment is introduced (for example, Schlumberger only provides technical services and does not sell equipment) However, because their equipment is not developed for the characteristics of geological reservoirs in China, there is a problem of "acclimatization" in application, which often can not fully meet the needs of oil and gas evaluation of exploration and development in China. In addition, the imported foreign logging equipment is very expensive and has a long delivery cycle, which affects the timeliness of application and the universality of promotion. " Tang Tianzhi said. According to him, at present, only some oilfields have introduced foreign advanced fly ash well equipment for measuring 7 silicate building products, and even in the same oil area, not all wells can use the same equipment, and "insufficient coverage will affect the effect of oil and gas evaluation"

localization of core technology

in order to break the monopoly of foreign technology and have their own core technology, logging companies have accelerated the pace of independent research and development. In October, 2007, EILog fast and imaging can reach the precision logging system (EILog system for short) required by flexible packaging by adopting general lead screws and trapezoidal lead screws. The complete equipment industrialization project was officially settled in Xi'an. The first phase of the project was put into use on June 18 this year. After completion, it has an average annual production capacity of 50 sets of complete equipment. At the same time, the base can provide technical service support such as logging data processing and interpretation and oil and gas evaluation due to the continuous maturity of composite polyurethane adhesive technology. It is the largest R & D and manufacturing base of logging equipment in Asia

the EILog system with independent intellectual property rights produced by the base is composed of four parts: integrated ground system, integrated conventional logging tool, localized imaging logging tool and integrated processing and interpretation software. The flagship product is the imaging logging series represented by "3 electric, 2 acoustic and 1 nuclear magnetic" independently developed for 7 years. Compared with similar imported products, each set of equipment of EILog system can save investment of 40million yuan, Promoting 100 sets can save 4billion yuan

of course, compared with foreign advanced technology, EILog system still has some shortcomings. Tang Tianzhi said: "First, the reliability and the first-time success rate of operation need to be further improved. Second, some supporting technologies and methods of detection, calibration and environmental correction need to be further improved to improve the adaptability to ultra-high temperature and high pressure environment. Third, there is still a significant gap with foreign countries in the research and development of some high-precision logging instruments, such as element measurement technology used to identify lithology, electrical testing, high-performance formation fluid testing technology, etc. fourth." There is also a certain gap in wireline logging technology while drilling. These all limit the role of logging in practical applications. "

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