苏里格气田压裂水平井裂缝参数优化——以苏53区块为例  

OPTIMIZE PARAMETERS OF FRACTURED HORIZONTAL WELLS IN SULIGE GASFIELD: CASE STUDY OF SU53 BLOCK

作　　者：叶成林 

机构地区：[1]中国石油集团长城钻探苏里格气田项目部

出　　处：《天然气勘探与开发》2014年第2期53-55,11,共3页Natural Gas Exploration and Development

基　　金：国家重大专项"大型油气田及煤层气开发"(项目编号:2011ZX05058)

摘　　要：苏里格气田属于典型的致密砂岩气藏,后期压裂改造是目前苏53区块水平井提高开发效果的有效手段之一.针对苏里格地区地质条件复杂,压裂水平井裂缝参数设计研究少的现状,以苏53区块开发经验和丰富的动静态资料为基础,利用数值模拟方法,对苏53区块压裂水平井裂缝参数进行了优化.结果表明,苏里格气田压裂水平井裂缝长度为200～300 m,导流能力保持在30～40 mD· cm之间时,在裂缝与水平段垂直的情况下,1000m水平段分4～6段压裂为最优方案.Sulige gasfield is a typical tight sandstone gas reservoir. At present, for some horizontal wells in Su53 block, fracturing in later stage can be one of the most effective means to improve their development effect. Target-ed the complex geological conditions and the less-studied fracture-parameter design of fractured horizontal wells, an optimization of fracture parameters was carried out by numerical simulation based on past development experiences and abundant dynamic and static data. Results show the optimal design of staged fracturing with 4~6 stages for 1000 m horizontal section under the condition that fractures are perpendicular to horizontal section when the fracture length ranging from 200 m to 300 m and the conductivity keeping around 30~40 mD·cm.

关 键 词：导流能力 裂缝参数 水平井 苏53区块 苏里格 致密砂岩气藏 

分 类 号：TE377[石油与天然气工程—油气田开发工程]