水平井地质导向技术在致密砂岩气藏中的应用及技术难点——以苏里格气田为例  

APPLICATION OF HORIZONTAL-WELL GEOSTEERING TO TIGHT SANDSTONE GAS RESERVOIRS:AN EXAMPLE FROM SULIGE GASFIELD

作　　者：杨国平[1] 张吉[2] 强小龙[1] 徐森[1] 万单夫[2] 赵当妮[1] 刘鹏飞[1] 

机构地区：[1]中国石油长庆油田公司第二采气厂 [2]中国石油长庆油田公司苏里格气田研究中心

出　　处：《天然气勘探与开发》2014年第4期58-62,11-12,共5页Natural Gas Exploration and Development

基　　金：国家科技重大专项(2008ZX05044)"鄂尔多斯盆地大型岩性地层油气藏勘探开发示范工程"

摘　　要：苏里格气田储层致密、薄而分散,储层非均质性强,地质条件复杂,开发难度大。实践证明,水平井是开发苏里格气田的有效手段,但如何确保水平井顺利实施、提高储层钻遇率和实施效果已成为水平井开发的技术难点。为此,以苏里格气田各区块所实施水平井为例,从水平井入靶和水平段地质导向等关键环节入手,梳理了水平井地质导向过程中出现的常见难点问题,总结出相应的技术对策。通过现场的实际应用,效果明显。In Sulige gasfield,most reservoirs are tight,thin and scattered.And they are characterized by strong heterogeneity,complicated geological condition,and difficulty in their development.Experience has proved that horizontal-well drilling is an effective tool.However,how to guarantee a successful drilling or what to increase a drilling ratio become technological difficulties.So,taking one block in Sulige field as an example,we started with some key steps including target-entering in horizontal well and geosteering in horizontal section at first;and then,analyzed systematically many common but difficult problems;at last summed up some countermeasures.It is proven after field application that the effect of horizontal-well drilling is obvious.

关 键 词：鄂尔多斯盆地 苏里格气田 水平井 入靶导向 水平段导向 关键技术 

分 类 号：TE142[石油与天然气工程—油气勘探]