塔中Ⅰ号气田东部碳酸盐岩储层的试井特征分析
|
摘要
塔里木盆地塔中Ⅰ号气田东部试验区储层高温高压,流体性质和流动机理复杂;试井曲线具有多样性、复杂性及多解性的特点,试井分析面临巨大的挑战。为此,根据研究区地质特点及有关资料录取情况,采用现代试井分析方法与生产动态分析相结合的非均质气藏动态描述综合技术,将储层划分为视均质、双重孔隙、复合模型以及裂缝、裂缝孔洞模型等5种类型进行试井分析。结果表明:该区储层非均质性较强,平面连通性差;试井特征与稳产能力有着紧密的联系,对不同类型的井,应制订相应的开发技术对策。
The reservoirs in the pilot test zone of the eastern Tazhong-1 Gas Field,Tarim Basin,are under high temperature and high pressure,where the properties of fluids and flowing mechanism are quite complicated.In addition,the well test curves are of multiplicity,complexity and ambiguity,so it is extremely difficult to carry out well test analysis.In view of this,based on the geological features in this study area and the related data,the integrated technology of dynamic description of heterogeneous reservoirs is adopted combined with modern well test analysis and well performance analysis,on this basis,the reservoirs are classified into five models for well test analysis,including a pseudo homogeneous model,a double porosity model,a composite model,a fracture model,and a fractured vuggy model.Results show that(1) the reservoirs in this study area have relatively strong heterogeneity and poor connectivity;(2) due to a close relationship between well testing characteristics and steady well productivity,corresponding technical measures should be made for different types of wells.
The reservoirs in the pilot test zone of the eastern Tazhong-1 Gas Field,Tarim Basin,are under high temperature and high pressure,where the properties of fluids and flowing mechanism are quite complicated.In addition,the well test curves are of multiplicity,complexity and ambiguity,so it is extremely difficult to carry out well test analysis.In view of this,based on the geological features in this study area and the related data,the integrated technology of dynamic description of heterogeneous reservoirs is adopted combined with modern well test analysis and well performance analysis,on this basis,the reservoirs are classified into five models for well test analysis,including a pseudo homogeneous model,a double porosity model,a composite model,a fracture model,and a fractured vuggy model.Results show that(1) the reservoirs in this study area have relatively strong heterogeneity and poor connectivity;(2) due to a close relationship between well testing characteristics and steady well productivity,corresponding technical measures should be made for different types of wells.
引文
[1]邬光辉,黄广建,王振宇,等.塔中奥陶系生物礁地震识别与预测[J].天然气工业,2007,27(4):40-42.
[2]李凌,谭秀成,陈景山,等.塔中北部中下奥陶统鹰山组白云岩特征及成因[J].西南石油大学学报,2007,29(1):34-36.
[3]邬光辉,陈利新,徐志明,等.塔中奥陶系碳酸盐岩油气成藏机理[J].天然气工业,2008,28(6):20-22.
[4]孙贺东,邓兴梁,徐艳梅,等.缝洞型碳酸盐岩气井动态描述技术[C]∥第三届油气田开发大会论文集.成都:出版者不详,2009.
[5]贾永禄,聂仁仕,陈珂,等.考虑二次梯度影响的渗流模型与试井样板曲线[J].西南石油大学学报,2007,29(5):69-71.
[6]庄惠农.气藏动态描述和试井[M].北京:石油工业出版社,2009.
[7]陈俊昌,朱宝峰,鹿贞昆,等.塔中地区碳酸盐岩储层试井曲线类型研究[J].油气井测试,2008,17(4):20-24.
[8]向祖平,张烈辉,陈辉,等.相渗曲线对油水两相流数值试井曲线的影响[J].西南石油大学学报,2007,29(4):74-78.
[2]李凌,谭秀成,陈景山,等.塔中北部中下奥陶统鹰山组白云岩特征及成因[J].西南石油大学学报,2007,29(1):34-36.
[3]邬光辉,陈利新,徐志明,等.塔中奥陶系碳酸盐岩油气成藏机理[J].天然气工业,2008,28(6):20-22.
[4]孙贺东,邓兴梁,徐艳梅,等.缝洞型碳酸盐岩气井动态描述技术[C]∥第三届油气田开发大会论文集.成都:出版者不详,2009.
[5]贾永禄,聂仁仕,陈珂,等.考虑二次梯度影响的渗流模型与试井样板曲线[J].西南石油大学学报,2007,29(5):69-71.
[6]庄惠农.气藏动态描述和试井[M].北京:石油工业出版社,2009.
[7]陈俊昌,朱宝峰,鹿贞昆,等.塔中地区碳酸盐岩储层试井曲线类型研究[J].油气井测试,2008,17(4):20-24.
[8]向祖平,张烈辉,陈辉,等.相渗曲线对油水两相流数值试井曲线的影响[J].西南石油大学学报,2007,29(4):74-78.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心