松树林区长6储层差薄油层识别与分类评价
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摘要
结合常规测井、室内分析化验、生产等方面的数据资料,对南泥湾油田松树林区长6储层的储层特征进行了精细描述,研究了储层的四性关系,建立了测井二次解释模型,对储层进行重新识别,并建立了有效储层和差薄油层的识别标准。在研究区长6储层502口井中共筛选出差薄油层280层,采用聚类分析的方法将差薄油层分为3类:Ⅰ类差薄油层占比17.8%,多分布于河道、鼻隆位置,试油效果好;Ⅱ类差薄油层占比56.1%,多分布于河道、鼻翼位置,试油效果次之;Ⅲ类差薄油层占比26.1%,多分布于河道侧翼、鼻翼位置,试油效果最差。
Through the study on the fine description of reservoir characteristics and the relationship between four properties of the reservoir,with the conventional logging data,laboratory analysis and production data,the secondary logging interpretation model is established to re-identify the Chang 6 reservoir,and then the identification standards of effective reservoir and poor and thin pay zonesare established. Through the above research,280 layers of poor and thin pay zones are selected through 502 wells in Chang 6 reservoir in Songshulin district and then are divided into 3 classes by clustering analysis. The results show that the class Ⅰaccounted for 17. 8%,mainly distributed in the river channel and nose position,the output of the well testing is good; class Ⅱ accounted for 56. 1%,mainly distributed in the river channel and the alae of the nose position,the output of the well testing is lower than class I; class Ⅲ accounted for 26. 1%,mainly distributed in the river channel flankand the alae of the nose position,the output of the well testing is bad.
Through the study on the fine description of reservoir characteristics and the relationship between four properties of the reservoir,with the conventional logging data,laboratory analysis and production data,the secondary logging interpretation model is established to re-identify the Chang 6 reservoir,and then the identification standards of effective reservoir and poor and thin pay zonesare established. Through the above research,280 layers of poor and thin pay zones are selected through 502 wells in Chang 6 reservoir in Songshulin district and then are divided into 3 classes by clustering analysis. The results show that the class Ⅰaccounted for 17. 8%,mainly distributed in the river channel and nose position,the output of the well testing is good; class Ⅱ accounted for 56. 1%,mainly distributed in the river channel and the alae of the nose position,the output of the well testing is lower than class I; class Ⅲ accounted for 26. 1%,mainly distributed in the river channel flankand the alae of the nose position,the output of the well testing is bad.
引文
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[19]程启贵,郭少斌,王海红,等.鄂尔多斯盆地中西部长6油层组储层综合评价[J].石油实验地质,2010,32(5):415-419.
[20]王平,常安定,董安国,等.鄂尔多斯盆地东南部长21油层段储层岩石类型聚类分析[J].油气地质与采收率,2012,19(5):39-42.
[2]王安培,刘雪梅,孙雪霞,等.中原油田深层低渗油藏薄差层压裂工艺技术[J].钻采工艺,2012,35(5):70-71.
[3]周祥,张士诚,马新仿,等.薄差层水力压裂控缝高技术研究[J].陕西科技大学学报:自然科学版,2015,33(4):94-99.
[4]王道富.鄂尔多斯盆地特低渗透油田开发[M].北京:石油工业出版社,2007.
[5]王道富,付金华,雷启鸿,等.鄂尔多斯盆地低渗透油气田勘探开发技术与展望[J].岩性油气藏,2007,19(3):126-130.
[6]贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-135.
[7]贺静,冯胜斌,黄静,等.物源对鄂尔多斯盆地中部延长组长6砂岩孔隙发育的控制作用[J].沉积学报,2011,29(1):80-87.
[8]董义龙,王维喜,刘建宏.南泥湾油田油气富集规律初探[J].天然气地球科学,1998(2):26-29.
[9]胡春花,屈红军,苗建宇,等.南泥湾长6油层组沉积微相及含油性研究[J].西北大学学报:自然科学版,2008,38(6):994-1000.
[10]武富礼,李文厚,李玉宏,等.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J].古地理学报,2004,6(3):307-315.
[11]杨华,邓秀芹.构造事件对鄂尔多斯盆地延长组深水砂岩沉积的影响[J].石油勘探与开发,2013,40(5):513-520.
[12]王维喜,曹天军,朱海涛.压汞曲线在特低渗油藏储层分类中的应用[J].重庆科技学院学报,2010,12(3):18-20.
[13]江春明,胡兴中,张晓武,等.冷家油田低阻储层测井二次解释模型研究[J].油气地质与采收率,2006,13(2):59-61.
[14]赵高攀.苏北盆地海安凹陷泰州组油层识别方法研究[J].石油实验地质,2012,34(5):554-558.
[15]李建霆.陇东油田V区Y9储层参数解释模型的建立及应用[J].西安石油大学学报:自然科学版,2013,28(3):16-20.
[16]向英杰,王泽华,吕振虎,等.四性关系研究在储层解释及描述中的应用——以KBM油田西区白垩系储层为例[J].新疆地质,2017,35(3):336-340.
[17]雷俊杰,陈世加,路俊刚.鄂尔多斯盆地黄陵地区长6油气成藏条件与主控因素[J].西安石油大学学报:自然科学版,2017,32(5):7-13.
[18]严龙湘,吉承华,姚景年.应用聚类分析方法对油藏开发分类[J].石油勘探与开发,1985(2):47-56.
[19]程启贵,郭少斌,王海红,等.鄂尔多斯盆地中西部长6油层组储层综合评价[J].石油实验地质,2010,32(5):415-419.
[20]王平,常安定,董安国,等.鄂尔多斯盆地东南部长21油层段储层岩石类型聚类分析[J].油气地质与采收率,2012,19(5):39-42.