PROCESS FOR TRAVERSING AND RENDERING OPERATIVE A PRODUCTIVE GAS LAYER

摘要

the invention refers to a process of crossing, by drilling a hole using a drilling fluid, gas, a gas layer and the productive operation thereof.the process according to the invention, consists in that a cadupa tubarea holes drilled, having the bottom being at a distance of 5...10 m layer, drilling is carried on with a side drilling, preferably, smooth on the outside, which is introduced by some cautionary static andrespectively, and that serves to rotary drilling fluid replacement liquid with water, the pressure of the sample water tightly cased and replacement with natural gas for further drilling.equipped, immediately above a drill, with a drilling fluid return valve, consisting of a gaseous medium.originally introduced on the surface and completed as the layer is crossed by the gas under pressure, from this, the drilling taking place, preferably, in a regime of subechilibru,if the conditions allow this regime, digging being stopped as it was when the valve is located below the return pad, gasket being erected on a further distance.so the one that can mount a support on this necklace of feathers and an annular sealing gaskets.still being lowered until the feathers get into a head column to ensure the suspension ring lining and sealing space girl outdoorwhat prevenitoarelor allows disassembly and mounting head of an eruption, after which he perforeaza gasket under a pressure close to that of the gas productive purposes of p