METHOD FOR MEASURING PRESSURE WITH CALIBRATION CONTROL DURING OPERATION OF PERFORATING-EXPLOSIVE DEVICES AND AUTONOMOUS PRESSURE REGISTER FOR REALIZATION OF SAID METHOD

摘要

FIELD: oil extractive industry.;SUBSTANCE: method includes mounting autonomous pressure register on geophysical cable at a distance safe from zone of high-temperature treatment, which is determined for each type of perforating-explosive devices by means of calculation with consideration of fuel mass and charge of explosive substance in it. For operative calibration of pressure sensor, stopping of autonomous pressure register is performed for recording hydrostatic pressure in preplanned points during lowering as well as during raising of autonomous pressure register after operation of perforating-explosive devices. After handling of recorded information by means of system software, values of hydrostatic pressure are compared in points of stopping to calculated values and conclusion about reliability of operation of autonomous pressure register is formed as well as about precision of information recorded during operation of perforating-explosive devices. Construction of autonomous pressure register allows quick and reliable mounting of register on geophysical cable at any given distance from a perforating-explosive device.;EFFECT: higher reliability and precision of registration of quick process of operation of perforating-explosive devices of different types, speeds of which may be a lot different, and of registration of pressure change connected to it in the well with operative control of calibration of pressure sensor under well conditions.;3 cl, 3 dwg, 1 ex