证明是成功的水平井射孔的设计和技术

• 作 者: J.B.Weirich T.E.ZalesldJr. P.M.Mulcahy 潘迎德
• 出 处: 油气井测试
• 发表日期: 1989年04期
• 关键词: 射孔 水平井 完井 水平井完井 延伸距离 最佳产量 作业设备 转弯半径 封隔器 射孔弹

用于水平井完井的作业设备,需要考虑其特殊结构,这些问题在垂直井完井中一般是没有的。虽然油管传输射孔最适合高斜井、长间距,但对水平井的设计还需要考虑其它因素:小转弯半径、长测量深度,以及产层的延伸距离。从而使得下入和取出射孔枪、获得负压、引爆射孔弹等所需的机械装置复杂化。选择孔眼的几何特征和射孔定向以适应油藏性质也是完井设计中不可缺少的一个方面。正确地使用射孔设备将获得最佳产量。

For horizontal well completion work equipment, its special structure needs to be considered, and these problems are not usually found in vertical well completion. Although the tubing transfer perforation is best suited for high sloping wells and long spans, other factors need to be considered in horizontal well design: small turning radii, long measuring depths, and the extended reach of the pay zone. Thus complicating the mechanical mechanisms needed to penetrate and remove perforating guns, obtain negative pressure, detonate perforations and the like. Choosing the geometry of the perforations and perforation orientation to suit the nature of the reservoir is also an indispensable aspect of completion design. Proper use of perforating equipment will yield the best yield.