苏里格气田薄产层水平井地质导向技术研究  

RESEARCH ON GEOSTEERING TECHNOLOGY OF HORIZONTAL WELLS WITH THIN RESERVOIR IN SULIGE GAS FIELD

作　　者：赵占良[1] 白建文[1] 胡子见[1] 王志峰 孙卫锋[1] 万单夫[1] 

机构地区：[1]中国石油长庆油田分公司苏里格气田研究中心 [2]川庆钻探工程公司长庆录井公司

出　　处：《钻采工艺》2010年第4期10-12,共3页Drilling & Production Technology

基　　金：中国博士后基金项目"深层致密砂岩气藏裂缝宽度变化对应力扰动响应研究"的部分内容(编号:20070411164)

摘　　要：苏里格气田非均质性强、储层较薄,地质条件复杂,上古生界气层单层厚度仅2.0～5.0m左右。因此,水平井高效地质导向方法与技术是苏里格气田薄产层水平井有效开发的关键。根据苏里格气田地质特征,通过充分应用现场录井资料,对岩性粒度、颜色实时观察,对钻时、气测随钻分析对比等手段,总结出适合该区块的"三点法"判断气层,"五点法"水平段地质导向的方法,对气层做出现场准确解释,指导现场做出比较科学的决策,引导钻头在有效储层中钻进,达到提高水平段的气层钻遇率的目的,取得了很好的应用效果。Sulige gas field has the features of strong heterogene-ity,thin reservoir,and complex geological conditions,and its single-layer thickness of the Upper Paleozoic gas reservoir is only 2. 0 ～ 5.0m. So,the geosteering technologies in Sulige gas field are the key to efficiently develop horizontal wells with a thin producing layer. According to geological characteristics of Sulige gas field,and real-time observing the rock size and color,analyzing gas survey data while drilling by using field logging information,the ' three-point method' of estimation gas reservoir and the 'five-point method' of the geosteering technology in horizontal section were summarized to make an accurate interpretation for gas reservoir. The application of these technologies improved the drilling success ratio and obtained satisfactory results.

关 键 词：水平井 地质导向 入窗点 岩性 气测 MWD随钻仪 

分 类 号：TE242[石油与天然气工程—油气井工程]