A digital electronic detonator detonation control system and method for perforation

Abstract

The invention provides a digital electronic detonator detonation control system for perforation and a method for the system. The system includes a control device and a perforating device, and the perforating device includes a perforating gun, multiple electronic detonators, and multiple perforating devices. The electronic detonator includes an explosion part and a code control part; the control device is used to set and check the detonation data and output the detonation information to the code control part, and the code control part checks the detonation information and controls the explosion part Detonation; the system has strict detonation control and higher detonation safety; and through multi-clock calibration, the electronic detonator is consistent with the clock information of the processing terminal, avoiding clock drift caused by the environment, so as to ensure high-quality completion of detonation operations; the system also The use of a perforating gun with a reinforced structure can effectively prevent the perforating gun from bursting and excessive plastic deformation during use, avoiding well jamming accidents, thereby effectively ensuring the development of perforating operations.

Description

technical field [0001] The invention relates to the technical field of perforation blasting, in particular to a digital electronic detonator detonation control system and method for perforation. Background technique [0002] Unconventional oil and gas reservoirs such as shale gas and tight oil and gas are adsorbed or dissociated in organic-rich mudstone interlayers, and are very rich in reserves in my country. In its development, the combination of cable multi-stage cluster perforation and bridge plug is currently the most widely used development method at home and abroad. The pipe string is transported through the cable, and multiple electric detonators and bridge plugs are sequentially ignited, set and multi-stage The hierarchical control perforation penetrates the casing and the formation, providing a prerequisite for staged fracturing. [0003] The patent application document CN201821444203.X and the patent application document CN201410513842.7 respectively provide an o...

AI Technical Summary

Problems solved by technology

However, the above-mentioned technologies cannot automatically identify digital IDs, have no detonation codes or are not connected to the National Industrial Electronic Detonator Center

The patent application document CN201810553208.4 provides an electronic detonator for oil and gas wells, which realizes precise control of the downhole electronic detonator by sending codes through ground control. Due to the uniqueness of the downhole electronic detonator control code, this technology cannot achieve multi-level control and is not applicable in unconventional oil and gas development

At the same time, due to the huge energy generated by the explosion of shaped energy perforating charges, it is easy to cause conventional perforating guns to burst or excessive plastic deformation, resulting in accidents such as well jamming, which seriously delays the progress of mining projects and causes large financial losses

[0004] Based on the above, it is hoped to propose a more reliable perforating gun detonation control system to solve the inconvenience caused by the above problems

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