Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (4): 1-8.doi: 10.3969/j.issn.1673-8926.2011.04.001

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Status quo of international geophysical exploration technologies and thinking about the development of PetroChina geophysical exploration technologies

DU Jinhu1， XIONG Jinliang2， WANG Xishuang1， WANG Xiwen3， WANG Xuejun4   

  1. 1. PetroChina Exploration & Production Company， Beijing 100007， China； 2. Dagang Oilfield Company, PetroChina， Tianjin 300270， China； 3. Research Institute of Petroleum Exploration & Development-Northwest， PetroChina， Lanzhou 730020， China； 4. BGP Inc. of CNPC， Zhuozhou 072751， China
  • Online:2011-08-20 Published:2011-08-20

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Abstract:

As the rapid progress of computer techniques, the development of international geophysical exploration technologies could be summarized to three main trends. Firstly, the channel capacity of land equipments is 150 000 channels, the capacity of marine equipment is 26 cables, and in the future the equipments would develop to million channels. Secondly, acquisition technique would develop towards wide azimuth, high density, wideband vibroseis and dual-geophone cables techniques. Thirdly, processing technique would develop towards pre-stack depth migration, reverse time migration and full waveform inversion techniques. Since the Eleventh Five-year period, PetroChina always adheres to technical development. Keeping a foothold on four major fields, PetroChina continuously organizes geophysical exploration technical research, and obtained great development in the geophysical exploration technologies. However, compared with international major companies, PetroChina still fall far short of independent innovation abilities in equipment manufacturing, computer hardware capability and key geophysical exploration technologies. In view of current situation of international geophysical exploration technologies and based on the practical situation of each exploratory area of PetroChina, the application and future development of PetroChina geophysical exploration technologies are analyzed, and some advices are proposed.

Key words: fault sealing, lithology joint, shale smear, fuzzymathematics, connectivity probability

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