PERFORATION CHANNELS IN THE CASED WELL DEVELOPMENT METHOD Russian patent published in 2019 - IPC E21B43/112 E21B7/08 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the field of oil and gas wells multi-hole construction and repair, in particular, to given path perforation channels controlled system development methods under depression on the layer conditions. Disclosed is perforation channels in the cased well development method. During the equipment lowering along the assembly and the casing entire length, establishing the wired communication line by embedding and dropping cable sections into the equipment and interconnecting them on the inductive remote connector, installed in the substitute above the downhole motor, as well as the tip, installed in the inserted reference electromechanical blocker lower part. In the case of using a pipe-cable hanger, a casing with the diverter and the electrohydraulic-type clamp is lowered on the pipe string, and the arrangement is lowered on the cable suspension. After the diverter orientation in the given azimuthal direction from the mouth, performing its controlled locking with the retainer, controlled by the casing electric pump via the wired line through the temporarily established remote transformer. When starting a downhole motor, blocking its reactive moment. Perforation channel drilling is carried out with the assembly rotation by the downhole motor reactive moment with its movable joint blocker partial unblocking by the motor, in the upper part equipped with the clutch-brake and the rotating current collector, and the assembly deepening direction change is carried out via the wire line. In case of the hose-cable suspension using, the inserted blocker is performed with the bypass flushing channel and is lowered together with the casing, which is provided with a lock, and the diverter orientation in this case is carried out by the assembly and the housing controlled rotation with the downhole motor reactive torque with the closed lock and the blocker movable joint temporary unlocking.

EFFECT: enabling increase in the method efficiency in difficult geological and technological conditions due to the downhole equipment improved controllability and manageability.

1 cl, 6 dwg