Control system and method for downhole sleeve perforating gun

Abstract

The invention discloses a control system and method for a downhole sleeve perforating gun. The control system is provided with a ground signal sending system, a downhole signal receiving system, a downhole signal processing and controlling system, an ignition system and an execution mechanism. The ground signal sending system is used for sending electromagnetic wave signals to the downhole sleeve perforating gun. The downhole signal receiving system is in communication with the signal sending system through electromagnetic waves and used for receiving the electromagnetic wave signals transmitted by the signal sending system. The downhole signal processing and controlling system is used for processing the electromagnetic wave signals to extract a control command. The ignition system is used for detonating a detonating cord. The execution mechanism is used for completing a perforating motion of the downhole sleeve perforating gun. The control command is sent to the downhole sleeve perforating gun in a mode of sending the electromagnetic waves in the ground. After receiving the correct control command, the downhole sleeve perforating gun controls an igniter to detonate the detonating cord to trigger a perforating bullet, and the perforating motion is completed. Operation is easy and reliable. The cost is low. The construction efficiency of fracture acidizing can be improved greatly. Meanwhile putting in any opening tool is not needed, so that downhole complex accidents are avoided at the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field stimulation and transformation, and in particular relates to a downhole casing perforating gun control system and a control method. Background technique [0002] The problem of insufficient domestic oil and gas supply is becoming more and more prominent. The recoverable and easily recoverable reserves of oil are constantly decreasing. Exploration and development are developing towards deep and unconventional hidden oil reservoirs. Fracturing and acidizing stimulation are required in the well process, and fracturing and acidizing stimulation has become the most effective measure to solve interlayer conflicts, improve the production degree of oil layers, and tap the interlayer potential. With the development of technology, existing oil and gas wells usually adopt staged fracturing and acidizing technology, but currently there is no reliable fracturing and acidizing technology that can take...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a downhole casing perforating gun control system and control method, which aims to solve the problems of high cost, high failure rate and difficulty in large-scale application of the remote control intelligent sliding sleeve at present.

Images