An artificial intelligence knowledge base (expert system) has been developed to assist oilfield personnel in analyzing for bacterial involvement in water-related field problems. The expert system also advises on the probability that bacterial contamination is involved in corrosion and can make biocide recommendations for several common bacteria-mediated field problems. The new expert system, Oilfield Microbiology Assistance System (OMAS), is a floppy-disc-based computer program that runs on most IBM and IBM - compatible personal computers. On-line help is included with the program diskette. The expert system was developed using INSIGHT 2+ software and is distributed to company personnel in a "read-only" format. The expert system covers situations encountered in the oilfield environment but can be tailored for other specific applications.

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