钻井

Well drilling in a salt formation is a problem in drilling,while accurately establishing the mud density and undersaturation is the key for solving the problem.

盐层钻井是钻井技术中的难题，准确确定钻井液密度及含盐欠饱和度是解决难题的关键。

The field application shows that this technology can solve the contradiction between hole deviation and WOB during fast drilling, the drilling efficiency can be increased very obviously. However, it is to be noted that proper selection of bit type and drilling fluid properties are required for taking full advantages of this technology.

现场应用表明：该技术较好地解决了钻井提速工作中井斜与钻压之间的矛盾，使钻井效率明显提高；为充分发挥该技术的作用，需要选择合适的钻头类型和合理的钻井液性能。

The field application demonstrates that both of the two types of steering vertical drilling tools can effectively solve the contradictory relation between well deviation control and high WOB.

实践表明，两种垂直导向钻井工具都能有效地解决防斜和加大钻压之间的矛盾，变被动防斜为主动防斜，对高陡构造防斜打快、降低钻井成本等方面具有一定的指导意义。

Study and application on reservoir sensitivity of Baimiao gas condensate field ;2. Yangtake gas condensate field exists a suit of composite salt bed in Eogene system,in which interspersing soft mudstones.

羊塔克凝析气田位于塔北隆起羊塔克构造带1号构造东端，下第三系普遍存在一套复合盐岩层，特别是夹在复合盐岩层中的软泥岩、复合盐膏层缩径与井漏并存，造成井眼极不稳定，给钻井施工带来很多复杂和事故，其钻井风险很大，尤其是216mm井眼的电测和下套管作业更是异常困难。

Self-elevating drilling platforms play an important role in the reconnoitering and the exploitation of offshore oil fields. But with the advancement of offshore oil industry, the earlier self-elevating drilling platform cant function well to satisfy the demands of the development of offshore oil reconnoitering and exploitation. They should be upgraded to be able to function as well as possible.

自升式钻井平台在海洋石油勘探开发中发挥着积极的作用，但随着海洋石油工业的发展及海洋勘探技术的不断提高，早期设计建造的自升式钻井平台在许多方面不能适应形势发展的需要，需要进行升级改造，以提高施工能力。

According to the pollutant component in drilling sewage,sensitivity of regional environmental treatment both in abroad and home three processes of treatment can be used,i.e.Pouring back into waste well,pouring back or reinjection after centra-lized treatment and reinjecting after site treatment.

一、钻井废水的产生钻井过程中产生的废水，依据其来源不同，大致可分为以下几种：地面废水主要由井场上面的雨水汇集而成，水量的大小受季节的影响很大。

Horizontal sidetracking technology has been developed so as to make full use of these old wells with shorter drilling cycle and less drilling cost by window opening and sidetracking in these wells.

为了充分利用老井眼的价值，采用侧钻水平井技术开采新的气藏取得了较理想的效果：对老井重新选层开发，充分利用了老井上部井段的套管资源，缩短了钻井周期，大幅节省了钻井费用。

On the basis of sidetracking slim-hole reaming study, the slim-hole reaming tools which are suitable for different formations are developed, and they are further improved and perfected through field test,φ152.4 mm and φ 118 mm reaming tools are developed.

在研究侧钻井小井眼段扩孔技术的基础上，研制出适合不同地层的侧钻井扩孔工具。

Drilling an oil or gas well within a developed field for which an approved land use plan or any environmental document prepared pursuant to NEPA analyzed such drilling as a reasonably foreseeable activity, so long as such plan or document was approved within 5 years prior to the date of spudding the well.

钻探油井或远低于发达领域的核准土地使用计划或任何环境准备的文件根据国家环保局气体分析作为一个合理的可预见的活动，如钻井，只要这样的计划或文件被批准在5年之前对钻井日期。

The gunfire is understood to have damaged a crane on board as well as strafing the legs of the rig and accommodation areas for staff.

据悉，伊朗方面开火袭击损坏了钻井上的一个起重机，并击中钻井的支柱和员工的食宿区。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。