论文部分内容阅读
丛式油井的斜向井和受地质条件或地面某种情况的限制而钻的斜井,其井身可分为三种类型: 1.接近地面的井段为竖直井身,以下的井身逐渐偏斜、弯曲,到井底逐渐弯曲成水平横向井段,整个并身构成弯井。 2.接近地面的井段为竖直井身,以下井段逐渐偏斜,钻头沿既定方位钻进,直至
Inclined wells in cluster wells and inclined wells drilled to a certain extent under geological conditions or ground conditions can be divided into three types: 1. The section close to the ground is a vertical wellbore, and the following wellbore Gradually skewed, curved, to the bottom of the well gradually curved horizontal horizontal well section, the entire merger constitutes a well. 2. The section of well close to the ground is a vertical wellbore. The following section of the well is gradually deflected and the drill bit is drilled in a given orientation until