查询词典 drilling stem

It is very important for improving drilling rate, reducing drilling cost and safety drilling to carry out drill stem failure analysis and prevention.

开展油田钻柱失效分析与预防对提高钻井速度、降低钻井成本及井下安全钻进具有重要意义。

Based on the drilling operation of 4 Wells, this article describes the basic characteristic of coalbed methane and technical difficulties in drilling. Some technical keys as borehole quality, fresh Water drilling,fresh water coring, coal-bed methane protection are solved through application of a series of techno1ogical measures such as optimization of rock bit, optimization of drill stem, optimization of drilling parameters and string coring and etc. The experimental performance, especially in fine-grained ...

本文以四口井的施工为例，着重介绍了煤层气井的特点，并指出了钻煤层气井的几个技术难点，通过钻头优选，钻具优选，钻井参数优选，绳索式取心技术等的现场实施和应用，基本解决了井身质量，清水钻井，清水绳索取心，煤层气保护等几个方面的技术难题，文中还介绍了使用中原油田自行设计的中原9508绳索取心工具的取心情况，尤其是在粉煤层地区的取心情况，这将为今后的煤层气开发打下坚实的基础。

Drilling stem is an important part in drilling.

钻柱是钻井过程中的重要工具。

But it needs Drilling Stem Test to get reservoir off-take potential and formation parameters.

但是，要确定储层的产能和地层参数需要通过钻柱测试或缆式中途测试等才能实现。

It is connected to the required position of drilling stem to protect drilling stem without any influence on the drilling tool.

将它连接于所用钻柱的需要部位，保护钻柱，不影响钻具正常工作，一旦在井下工具遇卡可借助于安全接头卸开并退出卡点以上的钻柱，再次下钻时还可对接。

It is connected to the required positoin of drilling stem to protect drilling stem without any influence on the drilling tool.

将它连接于所有钻柱的需要部位，保护钻柱，不影响钻具正常工作，一旦在井下工具遇卡可借助于安全接头卸开并退出卡点以上的钻柱，再次下钻时还可对接。

It is connected to the required position of drilling stem to protect drilling stem without any influence on the drilling tool.

将它连接于所用钻柱的需要部位，保护钻柱、不影响钻具正常工作，一旦在井下工具遇卡可借助于安全接头退出并卸开卡点以上的钻柱，再次下钻时还可对接。

AJ type safety joint is a specialized joint consisting of two parts. The specialized joint takes protective effect for drilling stem in drilling, repairing and test oil engineering, etc.

AJ型安全接头是一种由两件组装起来的专用接头，是钻井，修井，试油等工程中对钻柱起保护作用的一种专用工具。

Visual and microcosmic analyses on the fracture of absorber spline outer canister for oil drilling stem(spline outer canister for short) were performed.

为查明某油田断裂的石油钻柱减震器花键体外筒的断裂原因，对其断口进行了宏观和微观分析，对断裂的花键体外筒材质进行了分析，对钻柱减震器的受力状态和主要结构进行了分析。

Keywords drilling stem mechanics bottomhole assembly beam column

钻柱力学；井底钻具组合；梁柱

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷