Research On The Key Technologies Of Oil Logging Interpretation System

"Digital oilfield" is from the concept of "Digital earth" provided by the U.S. former president Gore in 1998. "Digital oilfield" realizes information sharing most, in order to provide more technical support to exploration, development, management and scientific decision-making, so that it can meet oil enterprises'needs of informatization construction. Logging and interpretation system is an important part of "Digital oilfield" information system.Domestic logging and interpretation systems were often out of joint between exploration, development, production, evaluation, etc. That's against information sharing and data sharing. Though overseas systems were maturer than domestic systems, they may like a fish out of water if coping to domestic. That's because they were mainly aimed at foreign oil enterprises. Therefore, it is necessary to execute systemic field analysis in domestic oil field to develop a new generation logging and interpretation system of independent intellectual property rights.First, this thesis uses DADP method to execute a systemic field analysis on oil production field in order to get pertinent domain models, and completes designing field metadata. Then, the thesis studies the key technologies of logging and interpretation system. Mainly includes:structured logging data's distributed database's research, using Adobe PDF intelligent document technology to realize unstructured logging data'storage and man-agement'research, using the information searches technology based on sentence vector space model to realize case similarity searches, the logging and interpretation method library's research and design. Finally, the thesis gives some prototypes of specific logging and interpretation system:"Production Logging Interpretation Support System Platform"."Production Logging Interpretation Support System Platform" is developed by Shaanxi Oil Alliance and domestic petroleum service companies. It uses C/S architecture and is desi-gned by C++language in Microsoft Visual Studio 2008. It realized structured data's distribut-ed storage and accessing, unstructured data's management in intelligent document form and case from and the rapid transition between structural data and unstructured data. In addition, it realized file encryption and decryption, system limits and rights management, etc. In addition, PLISSP realized file encryption and decryption, system limits to rights management, etc. It is a comprehensive logging and interpretation system and its appearances will greatly reduce the cost of producing petroleum enterprise of oil.