Bongor盆地花岗岩潜山流体性质识别
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摘要
Bongor盆地花岗岩潜山具有岩性复杂、储集类型多样化和非均质强的特点,常规测井资料很难对储层流体性质进行判别,同时,录井资料受到岩性、储层多样性和钻井工程作业的影响,导致气测值和荧光显示准确性降低。本次研究中,通过对试油井各储层段进行筛选、区分,消除井径和钻井条件等影响因素,统计不同流体类型的层段的测井、录井等参数曲线响应特征,对储层段钻速曲线ROP及总烃曲线TG进行筛选和计算,运用钻速曲线和总烃交会图和电阻率总烃交会图制作流体识别图版,有效的识别油层、水层和干层。该方法在Bongor盆地各个潜山油田内流体识别中都取得良好效果。
The basement rocks of Bongor Basin is characterized by complex lithology,diverse reservoir types and strong heterogeneity,it is difficult for conventional logging data to distinguish fluid properties of reservoirs,moreover,mud logging data are affected by lithology and drilling engineering operation,the accuracy of fluorescent and Gas logging are reduced. In this study,through screening and distinguishing each reservoir,we can eliminate the influence factors such as caliper and drilling condition.Calculated the drilling speed curve ROP and total hydrocarbon curve TG of reservoirs,Making use of ROP-TG cross plot and resistivity-TG cross plot to make fluid identification chart to identify oil,water and tight layers. This method has achieved good results in fluid identification of all buried-hills in Bongor Basin.
The basement rocks of Bongor Basin is characterized by complex lithology,diverse reservoir types and strong heterogeneity,it is difficult for conventional logging data to distinguish fluid properties of reservoirs,moreover,mud logging data are affected by lithology and drilling engineering operation,the accuracy of fluorescent and Gas logging are reduced. In this study,through screening and distinguishing each reservoir,we can eliminate the influence factors such as caliper and drilling condition.Calculated the drilling speed curve ROP and total hydrocarbon curve TG of reservoirs,Making use of ROP-TG cross plot and resistivity-TG cross plot to make fluid identification chart to identify oil,water and tight layers. This method has achieved good results in fluid identification of all buried-hills in Bongor Basin.
引文
[1]窦立荣,魏小东,王景春,等.乍得Bongor盆地花岗质基岩潜山储层特征[J].石油学报,2015(8):897-904.
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[6]钱宝娟.兴隆台潜山储层特种及成藏条件研究[J].特种油气藏,2007,14(5):35-37.
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[9]卢毓周,魏斌,李彬.常规测井资料识别裂缝性储层流体类型方法研究[J].地球物理进展,2004,3:173-178.
[10]曾文冲,邱细斌,刘学峰.识别复杂储层流体性质的新途径[J].测井技术,2014,38(1):11-21.
[11]张丽华,潘保芝,单刚,等.火山岩储层流体性质识别[J].石油地球物理勘探,2008,43(6):728-730.
[12]宋红日,梁巧峰,任立忠.中非Bongor盆地烃源岩特种及测井评价[J].大庆石油学院学报,2010,1(34):5-9.
[2]李威,窦立荣,文志刚,等.乍得Bongor盆地潜山油气成因和成藏过程[J].石油学报,2017(11):1253-1261.
[3]宋红日,窦立荣,肖坤,等. Bongor盆地油气成藏地质条件及分布规律初探[J].石油与天然气地质,2009,30(6):762-767.
[4]魏斌,张凤山,卢毓周,等.裂缝性储层流体类型识别技术———以辽河盆地大民屯凹陷中—新元古界潜山储层为例[J].海相油气地质.2003,8(1-2):93-98.
[5]李晓光,刘宝鸡,蔡国刚.辽河坳陷变质岩潜山内幕油藏成因分析[J].特种油气藏,2009 16(4):1-5,12.
[6]钱宝娟.兴隆台潜山储层特种及成藏条件研究[J].特种油气藏,2007,14(5):35-37.
[7]潘保芝.裂缝性火成岩地层测井评价方法与应用[M].北京:石油工业出版社,2003.
[8]綦敦科,吴海波,陈立英.徐家围子火山岩气藏储层测井响应特征[J].测井技术,2002,26(1):52-54.
[9]卢毓周,魏斌,李彬.常规测井资料识别裂缝性储层流体类型方法研究[J].地球物理进展,2004,3:173-178.
[10]曾文冲,邱细斌,刘学峰.识别复杂储层流体性质的新途径[J].测井技术,2014,38(1):11-21.
[11]张丽华,潘保芝,单刚,等.火山岩储层流体性质识别[J].石油地球物理勘探,2008,43(6):728-730.
[12]宋红日,梁巧峰,任立忠.中非Bongor盆地烃源岩特种及测井评价[J].大庆石油学院学报,2010,1(34):5-9.