METHOD OF OPTIMISING PROCESS MODE OF OPERATION OF GAS AND GAS CONDENSATE WELLS Russian patent published in 2017 - IPC E21B44/00 E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry and can be used in development of gas and gas condensate deposits for control of technical condition of wells and rapid change of process mode of their operation. Method includes: reading data from servers of automated control system of technological processes (APCS) using telemetry and telemechanical sensors, loading and storing them in a database, constructing wells and results of investigations of wells, constructing a gas collection system, simulation of formation pressure in zones of wells using hydrodynamic model of a field or approximation models well clusters, which is carried out according to planned and actual extractions of gas (telemetry data), loading obtained results in database, which are used for adaptation of model of system of intra-field collection of gas on actual data of operation, on basis of which are optimised parameters of wells and stubs, providing for execution of preset target conditions and adherence of process limits, and, taking them into account, said parameters are set by manual control or using telemechanics means. APCS is integrated with software system, which includes models of formation system, system of intra-field collection of gas and numerical algorithm for calculating process mode of operation of wells, which determines optimum distribution of extractions from wells. APCS with help of said software system periodically, with sampling interval, which is set taking into account history of operation of field, performs checking of match of actual measured parameters of operation of field with their calculated values. In case of detection of divergence upon comparison of controlled parameters with their calculated values by a value exceeding maximum allowable value, APCS performs control action on field with simultaneous launch of integrated software system. Using same, APCS by iterations brings field to a state, where difference between actual and calculated values of parameters of its operation is within allowable process limits.

EFFECT: high efficiency of industrial safety of operation of gas and gas condensate wells and reduced risk of emergency situations.

1 cl, 1 dwg