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Finite element modeling of the shaped charge jet and design of the reusable perforating gun
Petroleum Science ( IF 5.6 ) Pub Date : 2020-06-04 , DOI: 10.1007/s12182-020-00468-4
Zhao Zhang , Wei-Wei Jin

Finite element method is used to study the formations of the penetration jet, the bulge, and the burr in the designed reusable perforating gun. The attached layer of the soft metal on the perforator is studied for the controlling of the bulge height on the casing of the reusable perforating gun. Results indicate that the shaped charge jet is initially formed in the center of the shaped charge liner and then the material of the liner is driven to the centerline of the liner by the detonation wave. The attachment of the soft metal layer to the cartridge of the perforator can be beneficial to control the bulge height. The design on the blind holes on the casing can affect the burr height formed by the collision between the jet and the casing. With the increase in the liner angle, the penetration width on the cement wall of the wellbore is increased.

中文翻译:

聚能射流的有限元建模和可重复使用的射孔枪设计

在设计的可重复使用的射孔枪中,使用有限元方法来研究渗透射流,隆起和毛刺的形成。研究了软金属在射孔器上的附着层,以控制可重复使用的射孔枪壳体上的凸出高度。结果表明,成形的电荷射流最初在成形的装药衬套的中心形成,然后通过爆炸波将衬套的材料驱动到衬套的中心线。将软金属层附接到穿孔器的筒上可以有利于控制凸出高度。机壳上盲孔的设计会影响喷嘴与机壳之间的碰撞所形成的毛刺高度。随着衬管角的增加,在井眼的水泥壁上的穿透宽度增加。
更新日期:2020-06-04
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