METHOD OF WELL DRILLING Russian patent published in 2016 - IPC E21B43/00 E21B7/04 E21B17/02 E21B35/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to production of oil from collector coupled with possible emergency situations, due to unexpected cases of penetration of formations with abnormally high formation pressure. One of possible variants of elimination of emergency situations include drilling of a directional well for connection with barrel environments on selected depth. Method involves drilling of the first well. In the same well the pipes are installed are cemented. In the upper part of the well is installed a blowout preventor or lubricator. At the specified distance from the first well a second well is drilled adjacent to the section of the first well for implementation of the second well in working contact with the first well. Well pipes are installed and cemented in the second well. In upper part of the second well installed is a blowout preventor or lubricator. After that, drilling inside the first or second well is continued into the collector. Well, which is not drilled into the manifold is filled with fully or partially fluid medium. Drilling tool is placed in the same well and well then is closed so as to allow access into this well. Drilling tool remaining in the well is provided with possibility of establishing a connection with another well.

EFFECT: high efficiency of elimination of emergency fountain due to minimisation of time.

11 cl, 7 dwg