公开(公告)号：US20070256826A1

公开(公告)日：2007-11-08

申请号：US11749778

申请日：2007-05-17

申请人： Tomaso Ceccarelli ,  John Whitsitt ,  Steven Henderson

发明人： Tomaso Ceccarelli ,  John Whitsitt ,  Steven Henderson

IPC分类号： E21B43/116

CPC分类号： E21B43/08 ,  E21B43/045 ,  E21B43/117

摘要： An assembly is disclosed which is usable with the well which comprises a base pipe having a plurality of apertures where each of the apertures contains a screen insert. The assembly also includes a plurality of perforating charges which are mounted to the outer surface of the base pipe in proximity to the screen inserts. In one embodiment, the perforating charges are conical shaped charges, while in another embodiment, the perforating charges are linear shaped charges. An assembly according to the present invention may be utilized to perforate and gravel pack one or more of downhole zones in a single trip downhole. Utilization of linear perforating charges avoids killing the well and prevents formation damage by kill-pills or kill-fluids. An assembly in accordance with the present invention thus reduces drilling time and costs and allows for total flexibility for the distance between stacked intervals.

摘要翻译： 公开了一种可用于井的组件，其包括具有多个孔的基管，其中每个孔包含筛网插入件。 该组件还包括多个穿孔电荷，其安装在接近屏幕插入件的基管的外表面上。 在一个实施例中，穿孔电荷是圆锥形电荷，而在另一个实施例中，穿孔电荷是线性电荷。 根据本发明的组件可以用于在单次行进井下打孔和砾石包装一个或多个井下区域。 线性穿孔装置的利用避免了杀死井并防止杀死药片或杀伤液体的地层损伤。 因此，根据本发明的组件因此减少了钻井时间和成本，并且允许堆叠间隔之间的距离的全部灵活性。