METHOD FOR PREVENTING INTERSECTION OF SHAFTS DURING MULTIPLE DRILLING OF OIL AND GAS WELLS Russian patent published in 2004 - IPC

FIELD: mining industry.

SUBSTANCE: method includes registration of resilient oscillations coming from vibration of chisel during drilling of well by means of devices, received signal is amplified and then transferred to recording device. Additionally filtering of incoming signal is performed with separation of signal from chisel and numbering of separated signal. Then approaching and moving away of well shafts intersection is determined by comparing received signal to limiting values of signal from chisel. Information about signal from chisel is concurrently transferred onto recording device and notification device.

EFFECT: higher reliability due to control of approaching and moving away of chisel of drilled well relatively to column of well in operation for one plurality of wells and column of well in operation placed on adjacent pluralities of wells, lesser material and laborer costs and easier mounting and maintenance of drilled well.