METHOD FOR MAPPING IZOBAR LINES FOR OIL AND GAS CONDENSATE FIELDS Russian patent published in 2017 - IPC E21B47/06 E21B49/00 G01V99/00 

FIELD: oil and gas industry.

SUBSTANCE: use results of hydrodynamic studies and production data for all wells that is entered to the relevant databases. In addition to them, the means of the telemetry systems of group of gas wells in real time are produced with a given sampling interval of measurement: the wellhead pressure P_u.i, wellhead temperature T_u.i, gas flow rate Q_i, and recorded to the database of the production control system (APCS or Information Management System). For all these data, the system daily determines the daily average values of the measured parameters and also records them to the database, and also daily using the average daily values of the parameters P_u.i., T_u.i, Q_i and wells design data, calculates the values of the bottomhole pressure P_b.c and formation pressure P_f.c which are also recorded to APCS or IMS database. According to the issued command for izobar mapping the production control system using the above-mentioned data stored in its database produces an izobar map for any date indicated in the task in the automatic mode.

EFFECT: use of the invention increases efficiency and accuracy of izobar mapping with the reduction of process labour intensity due to the maximum automation of all its operations.

1 cl