侧钻

The design features of Model A and Model B double bend downhole drill motor for horizontal hole sidetracking is analyzed by the energy method.

采用能量法分析了A、B两种型号侧钻水平井双弯壳体动力钻具的结构特性，给出了钻具弯曲变形与井壁压力、钻头造斜力、井眼几何尺寸的关系，讨论了在直井眼内的下入问题。

According to the eight casing window sidetracking horizontal wells' conditions in Liaohe Oilfield, the main technical measures are given to improve the milling efficiency, which have important effects on improvements of casing milling technologies.

在分析段铣作业存在问题的基础上，对套管段铣工艺技术的有关计算方法作了简要介绍，结合辽河油田 8口套管开窗侧钻水平井的施工情况，给出了提高段铣效率的主要技术措

After sidetracking,reaming to slim-hole can remove formed polluted zone,decrease invasion depth of drilling fluid and reduce reservoir damage.

侧钻后对小井眼进行扩孔，可以去掉钻井过程中形成的污染带，降低钻井液侵入油层的深度，减少对油层的损害。

Drilling sidetracking short radius horizontal wells is an important measure to develop old oilfields and enhance recovery.

马宝金 ，吴航舟，王新明侧钻水平井是开发油田老区剩余油、提高原油采收率的主要措施之一。

Usage of is wider and wider. On the basis of developing history of CT, the paper describes the advantages and disadvantages of CTD,CT drilling rig system, underbalanced CTD and through tubing sidetracking technique of CT.

在概述连续软管发展史的基础上，叙述了连续软管钻井的优缺点、连续软管钻机系统、欠平衡连续软管钻井及连续软管过油管侧钻技术，介绍了国外石油公司利用连续软管钻井的先进经验。

Sidetracking ; horizontal well ; friction force ; analysis ; tools ; verification strength

侧钻；水平井；摩擦力；分析；工具；强度校核

Branches ; sidetracking ; branch drilling technology ; horizontal well

20分支；悬空侧钻；分支井钻井技术；水平井

Shut-down wells and low efficient wells are used for old-well sidetracking , its conditions include 3 factors, such as reservoir, wellbore and its technical economy.

利用停关、低效井实施老井侧钻，其条件包括油藏、井身及技术经济等3个方面。

At the moment, the slim hole sidetracking horizontal well has been applied successfully in more than 35 wells and save drilling cost 0.1 billion, accumulating oil is more than 120 thousand tons, this improve JiDong oil field whole economic effect.

目前，冀东油田小井眼侧钻水平井已成功应用了35口井，节约钻井投资1亿多元，累计产油12万吨，提高了冀东油田的整体经济效益。

Land ; oil and gas reservoir ; horizontal well ; multilateral well ; sidetracking

陆地；油气藏；水平井；分支井；侧钻

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。