area of pressure differential的意思|示意

It is important to note that the sticking force is a product of the differential pressure between the wellbore and the reservoir and the area that the differential pressure is acting upon.

注意到以下这一点很重要：即卡钻力是井内流体压力与地层压力之差与此压差所作用的面积的乘积。

Because its rigidity are less than the drill collar, less contact area with wall of a well, is also not easy to form differential pressure sticking.

由于其刚性比钻铤少，和井壁接触面积小，也不容易形成压差卡钻。