据俄罗斯油气网11月23日瑟克特夫卡尔报道，作为其技术和经济优化方案的一部分，俄罗斯第2大石油公司卢克石油公司（Lukoil）日前在位于西西伯利亚地区的Bayandyskoye油田和Pyakyakhinskoye油田成功进行了可控定向套管钻井作业，取得了令人鼓舞的效果。

俄罗斯科米成为卢克石油公司第一个执行定向可控245毫米套管钻井作业的地区，这种钻井技术具有可提取的井底组件的特色。

在位于西西伯利亚地区的Pyakyakhinskoye油田的一口井中，卢克石油公司使用这种钻井技术达到了俄罗斯全国前所未有的套管钻速每小时50.2米。

在不到2天的时间内完成了整个井段的钻进作业。  

与采用标准钻井技术相比，可控定向套管钻井的平均钻井速度提高了13%。  

为324毫米的表层管道建造一个井段所需的时间减少了两倍多。

在复杂的地质环境中，这种钻井方法可以优化井身结构，并规避常规钻井技术所带来的风险：由于井壁不稳定、膨胀性粘土、煤区和井漏区等原因导致套管卡钻或无法钻到预期深度。

卢克石油公司计划继续在其他合适的油田测试这种可控定向套管钻井技术。

如今，卢克石油公司在西西伯利亚地区担任120个许可证区块的作业者，总面积约为8万平方公里。

据统计，卢克石油公司迄今在西西伯利亚地区已开发79个油田。  

李峻 编译自 俄罗斯油气网

原文如下：

LUKOIL successfully tries out casing drilling

As a part of its technical and economic optimization programme, LUKOIL conducted controlled directional casing drilling at its Bayandyskoye and Pyakyakhinskoye fields, and received encouraging results.

The Republic of Komi became the 1st region where the company performed controlled directional 245 mm casing drilling featuring extractable bottom hole assembly.

At a well of the Pyakyakhinskoye field in West Siberia, LUKOIL reached a nationally unprecedented casing drilling speed of 50.2 metres per hour.

An entire section was drilled in less than 2 days.

The average drilling speed was 13% higher compared to drilling that employs standard technology.

Time needed to construct a section for the 324 mm surface pipe decreased more than twofold.

This method, when employed in complex geological environment, allows to optimize well construction and evade risks that arise from standard drilling techniques: risks of casing sticking or failing to reach projected depth because of unstable walls, expansive clays, coal districts and lost-circulation zones.

LUKOIL plans to continue testing the technology at its other suitable fields.

Nowadays, the company operates at 120 licence blocks in West Siberia, whose combined area amounts to around 80 000 square km.

The company develops 79 fields.