火山岩气藏早期开发特征及其控制因素  

Early-stage development characteristics of volcanic gas reservoirs and its controlling factors

作　　者：庞彦明[1,2] 毕晓明[2] 邵锐[2] 邱红枫[2] 

机构地区：[1]中国地质大学,北京100083 [2]中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《石油学报》2009年第6期882-886,共5页Acta Petrolei Sinica

基　　金：中国石油天然气股份有限公司科技项目"特殊天然气藏开发配套技术研究"(2008B-1102)部分成果

摘　　要：通过大庆徐深气田开发取得的矿场资料,分析了火山岩储层开发动态特征,并论述其产生的控制因素。火山岩气藏表现为气井产能、动态储量井与井差异大。试井曲线反映储层具有多种流动区域形态。单井的产量与地层系数、压裂规模关系复杂,即气井产量与压裂规模关系不能用基本的压裂改造机理描述,压裂的增产机理主要是沟通作用,而改造作用次之。研究结果表明,产生其开发动态特殊性的主要控制因素是火山岩储层具有不同于层状储层的储层分布宏观非均质性和具有不同于常规储层的储层微观孔隙结构复杂性。Based on the field development data of Xushen Gas Field in Daqing area, the special development performances of volcanic gas reservoirs were investigated. The analysis on the controlling factors of the volcanic gas reservoirs demonstrated that the gas productivity and dynamic reserve volume of gas wells in the volcanic gas reservoirs were greatly different. There are many flow regime patterns in the well-testing curves of volcanic formations. The gas productivity of single well has a complex relationship with reser- voir capacity and fracturing scale, which could not be expressed by the primary fracturing concept. The main fracturing mechanism to the volcanic reservoir is channeling, and then is reformation. The main factors for controlling the special performance of volcanic reservoir include the volcanic layer macroscopic heterogeneity different from the layer reservoir and the microscopic pore structure different from the conventional reservoir.

关 键 词：火山岩储层 开发特征 控制因素 宏观非均质性 微观孔隙结构 

分 类 号：TE112.222[石油与天然气工程—油气勘探]