Multistage pulses enhanced perforation equpment in use for oil and gas well

A technology of oil and gas wells and pulses, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems of delaying precious time for oil production, limited space for perforating guns, and limited fracturing effects, etc., and achieves extended Effective loading time, saving manpower and construction equipment costs, and improving the effect of seam making ability

Active Publication Date: 2007-02-21
物华能源科技有限公司
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Problems solved by technology

But this technology is carried out after some time after perforation, and this can delay the valuable time of a large amount of oil exploitations, and the second construction that carries out also can take considerable manpower and material resources, so does not obtain a large amount of popularization; The perforating technology is to load a certain amount of gunpowder in the perforating gun. While perforating, the perforating bullet ignites the gunpowder, and the high-energy gas generated by the gu

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  • Multistage pulses enhanced perforation equpment in use for oil and gas well
  • Multistage pulses enhanced perforation equpment in use for oil and gas well
  • Multistage pulses enhanced perforation equpment in use for oil and gas well

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] according to figure 1 As shown, the construction pipe string carried out by the preferred embodiment of the present invention mainly includes a sand-proof impact detonator 1, a synergistic perforating gun 2, a synergistic gun tail 3 and a connecting piece 4, a booster tube 5, and a partition delay Igniter 6, ignition powder column 7, secondary synergistic propellant powder 8, tertiary synergistic propellant powder 9, wire connector 31, sealing plug 33. The anti-sand percussion detonator 1 is a standard product, which can be any kind of percussion detonator used in the tubing transmission perforation with sand prevention function used in various oilfields, and the pressure detonator can also be used in deviated wells. The enhanced perforating gun 2 is a standard product, which can be any type of enhanced perforation with blind...

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Abstract

The present invention discloses a multi-stage pulse synergistic perforating system for oil-gas well. Said system is characterized by that on the basis of adopting detonator for resisting sand impact and synergistic perforating gun said invention utilizes synergistic gun tail, connecting component and threaded connecting component to make second-stage synergistic gunpowder with higher combustion velocity and third-stage synergistic gunpowder with lower combustion velocity be added into the construction pipe string, and the adopted partition board time-delay fire lighter can light the next-stage synergistic gunpowder after a period of time after the last-stage perforating gun is perforated so as to form several gunpowder pressure pulses to fracture formation and make the fracture be continuously extended. Besides, the proppants in two synergistic gunpowders can be fed into the formation fracture together with high-temperature high-pressure gas so as to prevent the formation fracture from being closed.

Description

technical field [0001] The invention belongs to the field of perforating operations of oil and gas wells, and mainly relates to a perforating device for exploiting oil and gas, in particular to a perforating device integrating deep penetration synergistic perforation, high-energy gas fracturing and hydraulic fracturing . technical background [0002] In order to increase the production of oil and gas wells, many methods have been adopted in actual production. In the early 1990s, my country introduced the high-energy gas fracturing technology from the former Soviet Union, and later, the synergistic perforation technology developed in my country. These two technologies have their own advantages. High-energy gas fracturing is to use high-energy gas fracturing bombs to fracturing the formation after perforation, in order to achieve the purpose of eliminating the perforation compaction zone and communicating formation fractures. But this technology is ...

Claims

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Application Information

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IPC IPC(8): E21B43/116
Inventor 周曌赵开良张锋魏永刚
Owner 物华能源科技有限公司
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