DP19小井眼欠平衡水平井井眼轨迹控制技术  

Hole trajectory control technology for underbalanced drilling of DP-19 slim-hole horizontal well

作　　者：崔海林[1] 曹树生[1] 杨春旭[1] 唐洪林[1] 孙连坡[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院,山东东营257017

出　　处：《石油钻采工艺》2010年第3期18-22,共5页Oil Drilling & Production Technology

基　　金：国家重大专项"低渗油气田高效开发钻井技术"(编号:2008ZX05022);中国石化集团重点科技攻关项目"长水平段水平井钻井技术研究"(编号:P07049)的部分研究成果

摘　　要：在简述DP19井储层地质情况、井身结构和井身轨迹剖面的基础上,对井眼轨迹控制技术难点进行了分析,阐述了DP19井小井眼欠平衡长水平段水平井井眼轨迹控制技术,总结了小井眼欠平衡长水平段水平井钻井施工经验和认识,为提高大牛地低渗低压气田整体开发效益积累了宝贵经验,同时也为非均质储层长水平段水平井的轨迹控制提供了新的工程技术手段和有效途径。Based on introducing the geology,casing program and well path,this paper analyzes the the challenges of hole trajectory in details,elaborates the trajectory control technology for underbalanced drilling of DP-19 slim-hole horizontal well with long horizontal section,sums up experience and recognitions in drilling of slim-hole horizontal wells with long horizontal section,providing valuable experience for enhancing the overall development performance of the low-permeability and low-pressure gasfield in Daniudi area.It also provides new and efficient techniques for trajectory control of long horizontal-section wells in anisotropic reservoir.

关 键 词：小井眼 欠平衡 氮气泡沫 长水平段 水平井 轨迹控制 

分 类 号：TE243[石油与天然气工程—油气井工程]