Scramjet self-adaptive perforation fluctuation fracturing synergy system

Abstract

The invention particularly relates to a scramjet self-adaptive perforation fluctuation fracturing synergy system. The system is characterized by comprising a scramjet perforation system tubular column, a scramjet series charging module, scramjet self-adaptive energy-releasing perforating bullets, a scramjet energy-continuing charging module, a scramjet perforation system bullet carrier and a detonating cord, wherein the scramjet self-adaptive energy-releasing perforating bullets are installed in the scramjet perforating system bullet carrier, the scramjet series charging module is buckled at the opening position of a shaped charge liner of the scramjet self-adaptive energy-releasing perforating bullets, the scramjet energy-continuing charging module is fixed to the portion, around the scramjet self-adaptive energy-releasing perforating bullets, of the scramjet perforating system bullet carrier, the detonating cord is connected with all the scramjet self-adaptive energy-releasing perforating bullets, and the scramjet series charging module, the scramjet self-adaptive energy-releasing perforating bullets, the scramjet energy-continuing charging module, the scramjet perforating systembullet carrier and the detonating cord are combined into a whole and then loaded into the scramjet perforating system tubular column. Compared with a perforation technology of the same type, the system has an obvious stratum fracturing conduction effect.

Description

technical field [0001] The invention belongs to the technical field of oil and gas exploration and development, and in particular relates to a super-combustion self-adaptive perforation wave fracturing synergistic system. Background technique [0002] At present, oil and gas perforation technology is mainly divided into active perforating charge technology, composite perforation technology, split composite perforation technology and integrated composite perforation technology. [0003] Active Perforating Charge Technology [0004] Active energy perforating charge technology, also known as self-reactive liner perforating charge technology, is a development direction of energy-concentrated perforating technology. The main feature of this technology is that the liner used inside the perforating charge The drug column can react by itself during detonation. Under the action of high temperature and high pressure, the drug-shaped cover can not only form perforation, but also have ...

AI Technical Summary

Problems solved by technology

But there are several disadvantages in this technical scheme, the first is that the work efficiency is low

The longitudinal distance between the fracturing agent and the perforation hole is large, and the pressure generated by the secondary deflagration of the fracturing agent is difficult to directly act on the formation channel, and the work efficiency is low

The second is that there are many charges and high energy, and there is a risk of sleeve damage

However, this technology has the following disadvantages. First, during the lowering process of the perforating device, the inner wall of the casing sometimes scratches the jacketed grain, which may easily cause premature deflagration of the grain and cause downhole accidents.

Second, the direct impact and erosion of high-pressure gas on the wellbore will also cause a certain degree of damage to the wellbore and formation

The disadvantages are that the perforation tunnel reconstruction ability is weak, the pressure load continuity is poor, the deflagration reaction is incomplete, and the degree of formation fracturing stimulation is limited.

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