论文部分内容阅读
YM7-H4水平井是塔里木油田在英买力部署的一口重点开发井。YM7区块内地质条件复杂,自上而下存在三套不同压力体系的地层,定向钻进的地层属于膏泥岩、石膏层、纯盐层互层的井段,临井在该层位常出现缩径、卡钻、井漏、盐侵等复杂情况。本井在121/4井眼定向造斜,顺利钻穿盐膏层,软泥岩层,在井斜72°的情况下顺利下入103/4“套管。在YM7-H4井的钻进过程中,克服诸多技术难题,成功完成了该井的轨迹控制工作。YM7-H4井的施工经验将指导该区块其他水平井的设计和施工,对英买力区块水平井开发的部署起着举足轻重的作用。
The YM7-H4 horizontal well is a key development well deployed by the Tarim Oilfield in Yingli. YM7 block complex geological conditions, from top to bottom, there are three different pressure system stratigraphy, directional drilling strata belonging to gypsum, gypsum layer, pure salt interbedded wells section, often in this layer of the provisional well Shrinkage, stuck, lost circulation, salt invasion and other complex situations. The well was made obliquely in the 121/4 wellbore and smoothly drilled through the salt-gypsum layer and the slime-mudstone formation and was successfully put into a 103/4 ”casing at a well inclination of 72. Drilling in the YM7-H4 well In the process of overcoming many technical problems and successfully completed the trajectory control of the well.YM7-H4 well construction experience will guide the design and construction of other horizontal wells in the block, the deployment of horizontal wells in Yingli force block deployment since A pivotal role.