在下入表层套管且注水泥之前，方井同样接受从井眼内返出的、必须被泵回到地表泥浆设备中的泥浆。
Prior to setting surface casing, the cellar also takes mud returns from the well, which are pumped back to the surface mud equipment.
安装在套管柱底部附近的一个部件，在初次注水泥作业期间水泥塞坐放于其上。
A component installed near the bottom of the casing string on which the cement plugs land during the primary cementing operation.
最后得出结论——振动注水所产生的脉动压力不会对套管、水泥环及地层造成损坏。
Finally, the conclusion is that the pulse pressure caused by vibrated water injection can not damage to casing pipe, cement sheath and formation.
多级注水泥用于长套管柱，以降低泵压并降低作用于地层的压力。
Multistage cementing is used for long casing strings to reduce pump pressures and to reduce pressure on the formations.
利用注水泥装置实现局部井段双层组合套管注水泥工艺，达到增加套管抗外挤强度的效果。
Using cementing equipments, the dual casing cementing technology in local intervals has been achieved to meet the requirements of the improvements of casing collapse resistance.
一种套管井测井方法，用于评价套管外注水泥作业。最常用的是水泥胶结测井。
A well log runs in a cased hole to evaluate the cement job behind the casing. The cement-bond log is the most common.
一种套管井测井方法，用于评价套管外注水泥作业。最常用的是水泥胶结测井。
A well log runs in a cased hole to evaluate the cement job behind the casing. The cement-bond log is the most common.
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