The purpose of perforation is penetrating the casing tube, cement sheath and a certain depth of the formation and forming unhindered channels for oil and gas flowing into the well casing.
射孔目的就是射穿套管、水泥环和地层内一定的深度，为地层的油气流入至井筒，形成一个顺畅的通道。
The results of theory and experiment are consistent, which can provide a reference to study technology which forecast gas outburst danger by electromagnetic wave penetrating.
实验与理论研究的结果相吻合，从而为利用电磁波透视法预测煤层突出危险性技术的研究奠定了基础。
应用推荐