1927 wells in the world measured in the first of the log has been 80 years of history, and in this period of the 1980s, logging has undergone earth-shaking changes. Logging technical basis for electricity, sound, nuclear magnetic and other physical principles, the application of advanced electronic technology and information processing technology, collection of information-rich layer, after a large number of computer data processing, the formation conditions and put forward a complete explanation evaluation, then compile accurate geological report。
一、the establishment of coalfield logging system
        The coal field of our country measures well to begin from 1954, having already walked through rains and winds up to now process for 53 years .history changing to compensate potential difference to account to carry on to measure a well record automatically under the usage Su system half at the former Soviet Union expert at that time, adopted electric resistance rate and natural electric potential's two kinds of methods to measure well, because used electricity parameter settle sex, fixed amount explain, measured the well result credibility drive not geology personnel approve, measured well almost bore bores all can test to find out to drill machine to beat the thin dozen coal seam for throwing, but end all needed to fire a gun to take to prove, so measured a well brigade to be called to fire a gun a brigade, because of fire a gun but take ime ratio to measure well time and grow have another, measured well data be called is two lines to add one cannon.Passed by in early days coal field to measure well a worker the work of the hardships creation very after, the coal field measured the function of well data to just cause a coal field geology a worker to value gradually。
        Du Liancheng ,He Guang rang, Liu Ruiping are all expanders in the field。
        50 in the late 20th century in the original coal Secretary for the Ministry of Infrastructure, under the leadership of the geophysical exploration, production coalfield in Shanghai with semi-automatic log-log and logging cable, in Shijiazhuang coalfield coal Factory production logging winch. Logging from staff training, team formation, equipment, R & D and so on was developed very rapidly. In a very tight car indicators for the instrument to the sub-quota for logging to bid farewell to the people gradually with the trio logging。
        Li Dejin, Zeng Mingyue was in the coal had auspices of the Ministry of Coal logging work, in their efforts, in Shijiazhuang coalfield coal Factory set up logging equipment in the workshop began producing semi-automatic log-Light。
        Development should be at the domestic energy needs of coalfield logging was pushed to a very high position, and the provinces of the major coalfield geological exploration companies have set up coalfield logging team. Setting up a team of the central government and local teams belong fragmentation pattern。
        Must be mentioned is that China University of Mining (Beijing School of Mines) is from the 1960 class of 59 students transferred part of Coalfield geophysical professional classes, began training with high academic qualifications coalfield logging (then college teaching and logging All experimental apparatus is the introduction of the Soviet Union); Shaanxi coal also several Prospect School, in 1968 from the train a first batch of geophysical graduates. The two institutions for the cause of China's coalfield logging develop the most of the coalfield logging technology backbone. It is a great pity, in the last century coalfield exploration downturn attack stopped cut costs of the enrollment。
二．Coal logging technology development
        In the early 1960s, the former Soviet Union due to the introduction of the gamma scattering instruments, the gamma source with the corresponding density logging technology into coalfield logging, Coalfield logging technology to the development of a qualitative leap in logging data reliability and has been greatly improved. Coalfield geological data from borehole logging data no longer indispensable, not until today Coalfield logging data is spent drilling holes。
        Coal logging equipment development and production logging Coalfield always accompanied by the development of technology, it has two distinct characteristics: on the one hand with the development of logging technology Coalfield closely linked to the exploration and development, the demand for exploration and development of a logging technology development an important driving force for the other coalfield logging technology workers always pay attention to many domestic and foreign logging latest developments. It should be said that China's oil logging of the rapid development of logging coalfield development has a very far-reaching impact. Many Oil Field in the latest technology will soon be applied in the coalfield logging。
        Coal logging record early transition from semi-automatic to automatic record, the Department of the Shanghai Geological Geological Instrument Factory has provided quantities Galvanometer-point camera recorder, but logging quality photographic record of good or bad we have to wait until after washing out to know, and photographic protocol can not be stored for a long time, the welcome from the scene. Soon be able to overcome the shortcomings of the Weinan production plants electrostatic image recorder (automatic recorder) to replace。
        Logging 53 coalfield history can be divided into two rough times：
1.Coalfield simulated logging era（1954——1985）
        1954 simulated logging in the exploration of China's coalfield areas gradually, one after another electric, acoustic, nuclear and other theories and technologies in coalfield logging, to the late 1970s drilling for Coal Seam evaluation, stratigraphic analysis of the basic allocation of logging methods Qi. In view of the original coal Division of the Department of geophysical equipment R & D and manufacturing attention, has ordered coal Factory Shijiazhuang moved to the workshop production of geophysical products and the nature of geophysical equipment for coal mine close to the Tianjin plant form of geophysical equipment workshop, and then the extension components plant Chengde City, Hebei moved yingshouyingzi, moved in 1969 years Weinan in Shaanxi, a coal Department was the only geophysical equipment R & D and production base。
        During this period, the R & D and production logging Galvanometer four-point static camera automatically synchronize the simulation of electrostatic image recording devices set scattering gamma, natural gamma, resistivity, spontaneous potential four-parameter combination logging IV-portfolio, as well as representatives of the 1,000 m winch for logging equipment, the various provinces and cities more than 200 National Coal Mining Bureau logging and logging team team to meet the domestic needs of coalfield logging equipment, of which four Combined production for the past 20 years has produced more than 1,000 sets. Later, the United States Mt company representatives know that this information on China's coalfield logging market is so huge surprise。
        Department of coal in 1966 to organize personnel to the Shengli Oil Field study, in which logging Niuzhuang research team studying the development of oil production logging tool, but a majority of these scientific and technological personnel Coalfield logging tool developed the backbone. Some people say that the coalfield logging and oil logging quite similar, in fact sown the seeds of time, from the two sides have had frequent contacts, so that the coalfield benefited from the development of logging technology. Coalfield standards especially in the construction of the nuclear scale well get more Xi'an Instrument Factory calibration oil wells departments to help. Later Weinan coalfield nuclear-scale wells will be under the auspices of the Zong-After a number of years completed in 1985。
        Du Liancheng, Lei Yongsheng, Peng Lian-fu, Han Ziwen, Li Baojin, and so is the equipment developed by the main backbone。
We simulated logging era and Vietnam, Albania, Tanzania, and other countries conducted a staff exchange equipment. 70 in the late 20th century after the end of the Cultural Revolution, oil logging technology logging China began to introduce the world's most advanced technology to move closer to the beginning。
2. Coalfield digital logging era（since 1985）
        With the tide of technology introduction, from the beginning of 1985 by the Geological Bureau and the coal plant Weinan Mt companies from the United States introduced a three coalfield logging digital logging equipment (including explanation of the printing software) and manufacturing technologies。
        In 1988 a domestic prototype manufacturing, and through the acceptance. In the original coal geological geophysical the iron beams of the organization, just a few years coalfield logging digital equipment has been popular in the country, simulated logging equipment gradually withdraw from the market。
        Domestic hardware in the smooth conduct At the same time, Coalfield Geology Bureau explain the digestion and software development, today until 10 years later, there are still some units are still using this software was developed。