川西地区二叠系火成岩储层流体性质识别方法
|
摘要
川西地区二叠系火成岩储层岩性复杂,储集空间类型多样,主要为砾间溶孔、粒内溶孔及晶间溶孔,具有高孔低渗的特征,表现为低自然伽马,低补偿密度,低电阻率和高声波时差、高补偿中子"三低两高"的测井响应特征。利用井温异常分析法、泊松比与体积压缩系数重叠法及孔隙度频谱分析法进行流体性质识别,取得了较好的应用效果。经试气资料验证,能满足川西火成岩气藏流体性质识别的需要。
The lithology is complex and the types of storage space are various about the Permian igneous reservoirs in western Sichuan region. The reservoir space is mainly composed of gravel solution pores,intragranular dissolved pores and intergranular dissolved pores,and it has the characteristics of high porosity and low permeability. The logging response of igneous reservoir is characterized by low gamma ray,low compensation density,low resistivity,high acoustic time difference and high compensation neutron. Well temperature anomaly analysis,poisson ratio overlaps with the volume compressibility,and porosity spectrum analysis were used to identify fluid properties,and good application results were obtained. It is proved by gas test data that it can meet the need of identifying the fluid properties of igneous gas reservoirs in western Sichuan.
The lithology is complex and the types of storage space are various about the Permian igneous reservoirs in western Sichuan region. The reservoir space is mainly composed of gravel solution pores,intragranular dissolved pores and intergranular dissolved pores,and it has the characteristics of high porosity and low permeability. The logging response of igneous reservoir is characterized by low gamma ray,low compensation density,low resistivity,high acoustic time difference and high compensation neutron. Well temperature anomaly analysis,poisson ratio overlaps with the volume compressibility,and porosity spectrum analysis were used to identify fluid properties,and good application results were obtained. It is proved by gas test data that it can meet the need of identifying the fluid properties of igneous gas reservoirs in western Sichuan.
引文
[1]文得进,胡松,曾波,等.Fisher判别技术在火成岩流体识别中的应用[J].油气地球物理,2009,7(4):38-41.
[2]付茜.中国火成岩油气勘探开发现状及展望[J].石油钻采工艺,2017,39(1):25-32.
[3]张若祥,王兴志,蓝大樵,等.川西南地区峨眉山玄武岩储层评价[J].天然气勘探与开发,2006,29(1):17-20.
[4]李洪娟,覃豪.基于岩相的酸性火山岩储层流体识别方法研究[J].2016,40(5):578-582.
[5]陈国军,殷晓兰,李静,等.中拐凸起中基性火山岩油藏流体性质识别方法[J].特种油气藏,2017,24(5):131-135.
[6]杨学峰.应用逐步判别法识别酸性火山岩储层流图性质—以徐家围子地区火山岩为例[J].国外测井技术,2017,38(6):25-29.
[2]付茜.中国火成岩油气勘探开发现状及展望[J].石油钻采工艺,2017,39(1):25-32.
[3]张若祥,王兴志,蓝大樵,等.川西南地区峨眉山玄武岩储层评价[J].天然气勘探与开发,2006,29(1):17-20.
[4]李洪娟,覃豪.基于岩相的酸性火山岩储层流体识别方法研究[J].2016,40(5):578-582.
[5]陈国军,殷晓兰,李静,等.中拐凸起中基性火山岩油藏流体性质识别方法[J].特种油气藏,2017,24(5):131-135.
[6]杨学峰.应用逐步判别法识别酸性火山岩储层流图性质—以徐家围子地区火山岩为例[J].国外测井技术,2017,38(6):25-29.