复杂断块带油环凝析气藏流体相态重构  

Fluid Phase State Reconstruction for Complex Block Gas Condensate Reservoir with Oil Ring

作　　者：何书梅[1] 熊钰 孙丽萍[1] 易继贵[1] 刘计超[1] 杨波[3] 

机构地区：[1]西南石油大学,四川成都610500 [2]科麦奇中国石油有限公司,北京100016 [3]中国石油大港油田公司,天津300280

出　　处：《天然气地球科学》2012年第1期186-189,共4页Natural Gas Geoscience

摘　　要：对于开发初期的凝析气藏,特别是对带油环凝析气藏的开发,在部署开发方案、选择开采方式时,获取准确的地层流体相态特征至关重要。由于各种原因,在气藏开发初期可能未取得代表性PVT样品,影响到气藏开发方案设计和预测的准确性。为获得准确的流体相态特性,立足组分梯度理论和相平衡理论提出了流体相态重构方法,利用纵向上流体组成及特性的差异通过多次流体重构、闪蒸和参数拟合获得准确的流体构成及相态模型。研究成果对带油环凝析气藏初期流体相态确定及开发方案研究具有很好的指导作用。For the early development of gas condensate reservoir, especially the reservoir with oil ring, precise characteristics of formation fluid phase are essential to deploy development plan and select producing method. Yet the,representative PVT samples may not be obtained in the early development period due to various reasons, and this affects the accuracy of design and forecast of gas reservoir development program. Here we introduce the fluid phase reconstruction method to get accurate fluid phase characteristics based on component gradient and phase balance theories. Precise fluid components and its phase model can be obtained by use of multifluid reconstruction,flash and parameters matching on considering fluid composition and characteristics discrepancy in vertical direction. This study is a very good guide on the early fluid phase study and its development plan designing for gas condensate reservoir with oil ring.

关 键 词：凝析气藏 流体相态重构 组分梯度理论 

分 类 号：TE135[石油与天然气工程—油气勘探]