Perforating bullet

A perforating charge, a new type of technology, applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc., can solve the problem of loss, achieve the effect of enhancing the force and reducing the loss of flight
CN101260799AInactive Publication Date: 2008-09-10INST OF APPLIED PHYSICS & COMPUTATIONAL MATHEMATICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF APPLIED PHYSICS & COMPUTATIONAL MATHEMATICS
Publication Date
2008-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the petroleum production field and in particular relates to a novel perforating bullet. The perforating bullet is based on the prior perforating bullet; the bullet is inside provided with a detonation wave reshaper which effectively blocks the transmission of a detonation wave, delays the time for transmitting the detonation wave to the bottom of the reshaper and ensures that the detonation wave in a booster explosive channel can firstly reach a main interface in order that the detonation wave generated in main explosive can effectively act on a shaped charge liner, thereby improving the utilization rate of explosive energy, increasing the speed, quality and kinetic energy of the shooting flow, strengthening perforation capacity so that the perforating depth of the oil well is deeper.
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Description

technical field

[0001] The invention belongs to the field of petroleum production, and in particular relates to a novel perforating bullet. technical background

[0002] Now the oil production in various oil fields is to place a series of perforating bullets from top to bottom in the drilled oil wells (generally 13-16 rounds per meter of length, and the phases are different, such as figure 1 As shown in Figure 1, the metal jet produced by the explosion of perforating charges is used to shoot a series of deep holes on the well wall, after which the oil well begins to produce oil. The higher the energy and the greater the speed of the jet, the deeper the hole will be penetrated, and the higher the oil yield of the oil well will be. Therefore, the link of perforation is very important to oil recovery, and the petroleum department compares it to the last "finishing kick" in the whole process of oil production. Perforation depth has become an important index to evaluate the per...

Claims

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