METHOD OF DETECTION OF QUASI-FULL GROUP OF DISTURBANCES OF OPERATING PROPERTIES OF WELLFORMATION SYSTEM Russian patent published in 2001 - IPC

FIELD: production of oil and gas; applicable in prognostication of occurrence and development of disturbances in well-formation system. SUBSTANCE: method includes monitoring of flow area of tubing and carrying capacity of filter, detection of location of absorbing interlayers, water-oil contact within interval of filter, water-gas-oil contact in tubing-casing annular space. In dynamic conditions of well operation, data on parameters of physical state of produced mixture are gathered, and data base on parameters of physical state of produced mixture is made up. Continuous computer analysis of multifactor dependence of parameters of physical state of produced mixture by genetic links is carried out by comparison of running values of parameters of physical state of produced mixture with their initial values. Determined by resulting data is degree of affinity of disturbances to symptoms of technological situations expected in process of well operation. Further on, intensity of development of disturbances is prognosticated and decisions are taken for their elimination. EFFECT: higher efficiency of method due to rationalized search, detection and keeping a close watch on development of quasi-full group of disturbances of operating properties of well-formation system in complex use of data of well survey. 2 dwg, 1 tbl