Delineation of gas-bearing area of lithologic gas reservoir in organic beach reef:A case study in Changxing Formation, Yuanba Gas Field
-
摘要: 开展生物礁滩气藏的储层空间展布特征研究,对于该类型气藏的储量计算和高效开发有着重要意义.由于元坝地区长兴组生物礁滩体埋深超过6 000 m,具有横向变化大和非均质性强的特点,简单的储层预测技术方法难以达到定量研究储层空间展布的要求.在沉积相研究的基础上,开展高精度相控储层定量预测,通过相控储层预测技术的应用,精细刻画了生物礁滩的空间展布特征和边界.评价井成功率达到100%,有效储层厚度20~70m.目前已探明长兴组气藏含气面积155.33km2,探明天然气地质储量1 592.53×108m3.Abstract: The delineation of reservoir distribution in organic beach reef is significant for reserve estimation and exploitation.In Yuanba area,the organic beach reef in the Changxing Formation is buried over 6 000 m deep,and is featured by lateral deformation and strong heterogeneity.It is difficult to delineate reservoir distribution quantitatively by simple forecasting method.Based on sedimentary facies,the quantitative forecast of phase-controlled reservoir has been carried out with high accuracy.It describes the distribution feature and limit of organic beach reef.The returned ratio of evaluation wells is 100% and the available reservoir thickness is 20-70 m.The gas-bearing area in the Changxing Formation is 155.33 km2,and the gas-in-place is about 1 592.53×108 m3.
-
[1] 郭旭升,胡东风.川东北礁滩天然气勘探新进展及关键技术[J].天然气工业,2011,31(10):6-11. [2] 郭彤楼.川东北元坝地区长兴组-飞仙关组台地边缘层序地层及其对储层的控制[J].石油学报,2011,32(3):387-394. [3] 郭彤楼.川东北地区飞仙关组鲕滩储层成岩作用:以宣汉-达县及元坝区块为例[J].石油与天然气地质,2010,31(5):620-631. [4] 马永生.碳酸盐岩储层沉积学[M].北京:地质出版社,1999. [5] 马永生.碳酸盐岩微相[M].北京:地质出版社,2006. [6] 王国茹,郭彤楼,付孝悦.川东北元坝地区长兴组台缘礁滩体系内幕构成及时空配置[J].油气地质与采收率,2011,18(4):40-43,53. [7] 郭旭升,郭彤楼,黄仁春,等.普光-元坝大型气田储层发育特征与预测技术[J].中国工程科学,2010,12(10):82-90. [8] 赵帮六,杜小弟.生物礁地质特征与地球物理识别[M].北京:石油工业出版社,2009. [9] 韩敏强,蒲仁海,刘海娟,等.鄂尔多斯盆地延长探区奥陶纪末古地貌恢复与储层预测[J].石油与天然气地质,2011,32(5):760-767. [10] 楼仁兴,董清水,聂辉,等.塔里木盆地巴楚-麦盖提地区志留-泥盆纪岩相古地理特征及其油气勘探前景[J].石油实验地质,2011,33(6):580-586. [11] 王延章,宋国奇,王新征,等.古地貌对不同类型滩坝沉积的控制作用:以东营凹陷东部南坡地区为例[J].油气地质与采收率,2011,18(4):13-16. [12] 帅萍.济阳坳陷古近纪古地貌特点及其对沉积的控制作用[J].油气地质与采收率,2010,17(3):24-26. [13] 王萍,袁向春,李江龙,等.塔河油田4区古地貌对储层分布的影响[J].石油与天然气地质,2011,31(3):382-387. [14] 赵文光,蔡忠贤,邹华耀,等.川东北元坝地区三叠系飞仙关组碳酸盐岩台地演化影响因素分析[J].石油地球物理勘探,2010,45(3):410-413. [15] 段金宝,黄仁春,程胜辉,等.川东北元坝地区长兴期-飞仙关期碳酸盐岩台地沉积体系及演化[J].成都理工大学学报(自然科学版),2008,35(6):663-668. [16] 贾承造.碳酸盐岩油气藏测井评价技术及应用[M].北京:石油工业出版社,2009.
计量
- 文章访问数: 2369
- HTML全文浏览量: 110
- PDF下载量: 1208
- 被引次数: 0