TDR1-127减速涡轮钻具在塔河油田超深井的试验研究

Test of reduction turbodrill TDR1-127 at ultra-deep wells in Tahe Oilfield

谭春飞 王甲昌 郑卫建 夏柏如

TAN Chunfei WANG Jiachang ZHENG Weijian XIA Bairu

中国地质大学工程技术学院，北京　100083 中国石油大学石油工程教育部重点实验室，北京　102249 中原石油勘探局钻井工程技术研究院，河南濮阳　457001

School of Engineering and Technology in China University of Geosciences, Beijing 100083, China MOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing 102249, China Drilling Engineering Technology Research Institute, Zhongyuan Petroleum Exploration Bureau, Puyang 457001, China

为提高塔河油田超深井小井眼钻进速度，缩短钻井周期，设计并试制了一种具有金属密封的TDR1-127减速涡轮钻具，并在TH12509小井眼井中进行了试验，试验井段的钻速与同井相邻地层转盘钻井方式的钻速相比提高了80%以上，与邻井转盘钻井方式钻进相同地层的钻速相比提高了55%以上。理论与试验结果表明，TDR1-127减速涡轮钻具结构设计合理，工作寿命长，能够满足塔河油田超深井小井眼复合钻井需要，可进一步推广应用。

In order to increase the slim hole drilling speed at ultra-deep wells in Tahe Oilfield ultra-deep, the reduction turbodrill 127 which has metal surface sealed structure is designed and successfully trial-produced. It has been tested through composite drilling in TH12509 slim-hole well. As a result the average drilling speed of the tested hole section increases more than 80% as compared to that of the same well in adjacent strata and more than 55% comparing with that of the adjacent well in the same strata in condition of turntable drilling. It is indicated that the structure of reduction turbodrill TDR1-127 is reasonable, which has long service life and meets the reqirements of slim-hole composite drilling at ultra-deep wells in Tahe Oilfield.