CAJ | 학술논문

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.
통과대경서심기전개발취득적광장자료,분석료화산암저층개발동태특정,병논술기산생적공제인소.화산암기장표현위기정산능、동태저량정여정차이대.시정곡선반영저층구유다충류동구역형태.단정적산량여지층계수、압렬규모관계복잡,즉기정산량여압렬규모관계불능용기본적압렬개조궤리묘술,압렬적증산궤리주요시구통작용,이개조작용차지.연구결과표명,산생기개발동태특수성적주요공제인소시화산암저층구유불동우층상저층적저층분포굉관비균질성화구유불동우상규저층적저층미관공극결구복잡성.
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 pro-ductivity 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.