低孔低渗气层测井识别与评价方法研究  

Research of identifying and evaluating low-porosity and low-permeability gas-layers in well-logging

作　　者：赵俊峰[1] 纪友亮[1] 陈汉林[2] 蔡蓉[2] 

机构地区：[1]同济大学海洋与地球科学学院,上海200092 [2]中国石化集团中原石油勘探局测井公司,河南濮阳457001

出　　处：《海洋石油》2008年第3期96-102,108,共8页Offshore Oil

摘　　要：为有效地识别和精确地评价以低孔低渗、微裂缝发育为特征的气层,用岩心资料对应测井资料,在地质条件约束下,以细分层的"四性"关系研究为基础,提出了用直接识别、交会图、数学、综合分析等方法定性识别气层;在对裂缝深入研究的基础上,建立了储层参数定量解释模型,并分层位建立了气层识别标准。该气层测井评价方案的投入应用,提高了测井对气层的识别能力和定量评价精度,从而为长庆气田的深入勘探与进一步开发提供了科学依据。In order to effectively identify and accurately evaluate the gas-layers characterized by low- porosity, low-permeability and developing microcracks. On the base of four-characteristic relations＇ research and using well-logging data are scaled by core data, methods of direct identification, cross plot, mathematics and comprehensive analyzing are put forward to identify gas-layers qualitatively constrained by geological conditions. Based on research of cracks, quantitative interpretation models of reservoir parameters and identification criterion of gas-layers in different strata are put forward. Since the evaluation method has been put into use, the identification capability and evaluation precision of gas-layers in well-logging are improved, which provides scientific bases for further development of Changqing Gasfield.

关 键 词：气层 低孔低渗 裂缝 定性识别 定量评价 

分 类 号：P631.81[天文地球—地质矿产勘探]