烃指数图板在渤中M油田的建立与应用
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摘要
气测参数图板法是储集层流体类型识别的一种重要方法,但在实际应用中往往由于油质的影响造成解释精度的下降。为了消除油质的影响,提高储集层流体解释的精度,通过对渤中M油田大量的录井、测井、测试、钻井及生产的数据归纳分析,提出反映储集层流体类型的3个气测烃指数——甲烷指数(COI)、全烃异常指数(TGI)及烃组分指数(DTI),然后依据不同油质分别建立了3个烃指数流体解释图板,可用以有效识别油层、气层及水层,提高了储集层流体的解释符合率。在该油田另外两口井中进行实际验证,平均解释符合率为88.5%,表明该图板的建立对渤中M油田后续的评价及开发工作具有重要意义。
Gas logging parameter chart is an important method to identify reservoir fluid types,but the accuracy of interpretation is often reduced due to the influence of oiliness in practical application.In order to eliminate the influence of oiliness and improve the accuracy of reservoir fluid interpretation,a large number of mud logging,well logging,testing,drilling and production data in Bozhong M Oilfield were summarized and analyzed.Three gas logging hydrocarbon indices reflecting reservoir fluid types,namely methane index(COI),total hydrocarbon anomaly index(TGI)and hydrocarbon component index(DTI),were put forward.Then three hydrocarbon index interpretation charts were established according to different oiliness,which can be used to identify oil,gas and water layers,and improve the coincidence rate of reservoir fluid interpretation.The actual verification in the other two wells shows that the average interpretation coincidence rate is 88.5%,which indicates that the establishment of this chart is of great significance to the follow-up evaluation and development of Bozhong M Oilfield.
Gas logging parameter chart is an important method to identify reservoir fluid types,but the accuracy of interpretation is often reduced due to the influence of oiliness in practical application.In order to eliminate the influence of oiliness and improve the accuracy of reservoir fluid interpretation,a large number of mud logging,well logging,testing,drilling and production data in Bozhong M Oilfield were summarized and analyzed.Three gas logging hydrocarbon indices reflecting reservoir fluid types,namely methane index(COI),total hydrocarbon anomaly index(TGI)and hydrocarbon component index(DTI),were put forward.Then three hydrocarbon index interpretation charts were established according to different oiliness,which can be used to identify oil,gas and water layers,and improve the coincidence rate of reservoir fluid interpretation.The actual verification in the other two wells shows that the average interpretation coincidence rate is 88.5%,which indicates that the establishment of this chart is of great significance to the follow-up evaluation and development of Bozhong M Oilfield.
引文
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[9] 徐德龙,李涛,黄宝华,等. 利用交会图法识别国外M油田岩性与流体类型的研究[J]. 地球物理学进展,2012,27(3):1123-1132. XU Delong,LI Tao,HUANG Baohua,et al. Research on the identification of the lithology and fluid type of foreign M oilfield by using the crossplot method[J]. Progress in Geophysics,2012,27(3):1123-1132.
[2] 胡延忠,吴文明,孟建华. 气测录井烃类比值和烃气指数图板的建立与应用[J]. 录井工程,2009,20(2):11-13. HU Yanzhong,WU Wenming,MENG Jianhua. The chart establishment and application of hydrocarbons ratio and hydrocarbon gas index for gas logging[J]. Mud Logging Engineering,2009,20(2):11-13.
[3] 谭忠健,吴立伟,郭明宇,等. 基于烃组分分析的渤海油田录井储层流体性质解释新方法[J]. 中国海上油气,2016,28(3):37-43. TAN Zhongjian,WU Liwei,GUO Mingyu,et al. A new method of mud logging reservoir fluid property interpretation in Bohai oilfields based on hydrocarbon components analysis[J]. China Offshore Oil and Gas,2016,28(3):37-43.
[4] 方锡贤,程岩,熊玉芹,等. P2井特殊烃组分气测异常显示层探讨[J]. 录井工程,2006,17(1):43-46. FANG Xixian,CHENG Yan,XIONG Yuqin,et al. Discussion on gas logging abnormal show zone with the special hydrocarbon components in P2 well[J]. Mud Logging Engineering,2006,17(1):43-46.
[5] 马猛,谭忠健,谭伟雄,等. 气测交会图板解释方法在渤海X油田的应用研究[J]. 录井工程,2017,28(4):56-60. MA Meng,TAN Zhongjian,TAN Weixiong,et al. Application research of gas measurement crossplot chart interpretation method in Bohai X oillfield[J]. Mud Logging Engineering,2017,28(4):56-60.
[6] 王斌,张达清,谌飞雁,等. 彩南地区气测解释交会图版的研制与应用[J]. 录井工程,2005,16(1):9-12. WANG Bin,ZHANG Daqing,SHEN Feiyan,et al. Development and application of crossplot chart for gas logging interpretation in Cainan area[J]. Mud Logging Engineering,2005,16(1):9-12.
[7] 赵陈,董国富,屈晓阳,等. 气体组分图板法在渤中X构造油气层识别中的应用[J]. 录井工程,2018,29(2):74-78. ZHAO Chen,DONG Guofu,QU Xiaoyang,et al. Application of gas component chart method in identification of hydrocarbon reservoirs in Bozhong X structure[J]. Mud Logging Engineering,2018,29(2):74-78.
[8] 杨卫东,陈亮,李万里,等. 主成分分析法在录井解释图板中的应用[J]. 录井工程,2015,26(3):31-34. YANG Weidong,CHEN Liang,LI Wanli,et al. Application of principal component analysis method in mud logging interpretation chart[J]. Mud Logging Engineering,2015,26(3):31-34.
[9] 徐德龙,李涛,黄宝华,等. 利用交会图法识别国外M油田岩性与流体类型的研究[J]. 地球物理学进展,2012,27(3):1123-1132. XU Delong,LI Tao,HUANG Baohua,et al. Research on the identification of the lithology and fluid type of foreign M oilfield by using the crossplot method[J]. Progress in Geophysics,2012,27(3):1123-1132.