喇萨杏油田表外储层测井分类标准
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摘要
水洗资料表明,在当前开发条件下,喇萨杏油田部分表外储层难以动用。为提高表外储层剩余油的挖潜程度,基于岩心水洗分析、压汞、测井资料等,以长垣Ⅰ类独立表外、Ⅱ类独立表外层为研究对象,研究在当前开发条件下表外储层的动用难易程度。确定当前开发条件的表外储层分类物性、含油性标准,并采用岩心刻度测井技术,分区块、油层组建立不同系列测井分类方法。通过表外单采试验区表明,单井产液强度随射孔厚度中易动用厚度比例的增大而增大,测井解释为难动用的表外层注入百分比较低,注水强度也较低,分类结果和生产动态实际较为吻合。
The washing data show that under the current development conditions some untabulated reservoirs in the Lasaxing oilfield were difficult to develop. In order to improve the recovery rate of residual oil in the untabulated reservoirs based on core washing analysis mercury pressure and log data class I and II independent untabulated reservoirs in Changyuan were taken as the research object to study the difficulty of untabulated reservoir utilization under the current development conditions. Based on the research results the physical and oil-bearing classification standards of the untabulated reservoir of the current development conditions were determined and the different series of log classification methods for different blocks and different oil layers were established by using the technology of "core calibration logging". Based on the single well production data of the untabulated reservoir in test area the liquid production volume of single well increased with the thickness increase of reservoir which was easy to develop. When untabulated reservoir was interpreted as the reservoir which was difficult to develop the percentage of injection was lower the corresponding water injection intensity was also low. The classification results were in good agreement with the actual production dynamics.
The washing data show that under the current development conditions some untabulated reservoirs in the Lasaxing oilfield were difficult to develop. In order to improve the recovery rate of residual oil in the untabulated reservoirs based on core washing analysis mercury pressure and log data class I and II independent untabulated reservoirs in Changyuan were taken as the research object to study the difficulty of untabulated reservoir utilization under the current development conditions. Based on the research results the physical and oil-bearing classification standards of the untabulated reservoir of the current development conditions were determined and the different series of log classification methods for different blocks and different oil layers were established by using the technology of "core calibration logging". Based on the single well production data of the untabulated reservoir in test area the liquid production volume of single well increased with the thickness increase of reservoir which was easy to develop. When untabulated reservoir was interpreted as the reservoir which was difficult to develop the percentage of injection was lower the corresponding water injection intensity was also low. The classification results were in good agreement with the actual production dynamics.
引文
[1] 赵永胜,兰玉波,李强.喇萨杏油田表外储层动用机制分析 [J].大庆石油地质与开发,2001,20(3):30-33.
[2] 王启民.油田表外储层的研究与开发 [J].国外油田工程,1998,13(5):5-8.
[3] 杨学峰,冯肖宇,尚云志.徐家围子地区火山岩储层测井分类方法研究 [J].测井技术,2014,38(5):547-552.
[4] 张宝胜,张淑洁,钟玲.喇萨杏油田各类油层水洗状况 [J].大庆石油地质与开发,2002,21(6):42-43.
[5] 张建龙,刁国新,胡茹文,等.南阳黑龙庙地区低孔低渗储层分类标准研究 [J].石油地质与工程,2009,23(1):22-24.
[6] 张伟,王瑛,冯进,等.珠江口盆地深部低渗透率储层分类评价方法 [J].测井技术,2011,35(2):137-140.
[7] 马立民,林承焰,范梦玮.基于微观孔隙结构分形特征的定量储层分类与评价 [J].石油天然气学报,2012,34(5):15-19.
[8] 孙洪志.难动用储层影响因素及分类标准研究 [D].北京:中国地质大学(北京),2005.
[9] LUCIA F J.Rock-fabric/petrophysical classification of carbonate pore space for reservoir characterization [C]//AAPG Bulletin,1995:1275-1300.
[10] 干孟光.海拉尔盆地乌南地区复杂岩性识别方法、储层分类研究 [D].长春:吉林大学,2010.
[11] 赵翰卿.喇萨杏油田表外储层地质特征研究 [R].大庆:大庆油田勘探开发研究院,1989.
[12] 李卿卿,胡伟,高宇.大庆杏六区中部油藏各类油层水洗状况评价 [J].油气地球物理,2013,11(3):50-53.
[13] 刘义坤,王凤娇,胡超洋,等.薄差储层油水渗流规律研究 [J].特种油气藏,2013,20(5):89-92.
[14] 钟淑敏,刘传平,章华兵.低孔低渗砂泥岩储层分类评价方法 [J].大庆石油地质与开发,2011,30(5):167-170.
[15] 徐慧,林承焰,孙彬,等.低渗透油藏分层动用状况判别方法 [J].西南石油大学学报(自然科学版),2013,35(4):95-100.
*非法定计量单位,1 mD=9.87×10-4 μm2,下同
[2] 王启民.油田表外储层的研究与开发 [J].国外油田工程,1998,13(5):5-8.
[3] 杨学峰,冯肖宇,尚云志.徐家围子地区火山岩储层测井分类方法研究 [J].测井技术,2014,38(5):547-552.
[4] 张宝胜,张淑洁,钟玲.喇萨杏油田各类油层水洗状况 [J].大庆石油地质与开发,2002,21(6):42-43.
[5] 张建龙,刁国新,胡茹文,等.南阳黑龙庙地区低孔低渗储层分类标准研究 [J].石油地质与工程,2009,23(1):22-24.
[6] 张伟,王瑛,冯进,等.珠江口盆地深部低渗透率储层分类评价方法 [J].测井技术,2011,35(2):137-140.
[7] 马立民,林承焰,范梦玮.基于微观孔隙结构分形特征的定量储层分类与评价 [J].石油天然气学报,2012,34(5):15-19.
[8] 孙洪志.难动用储层影响因素及分类标准研究 [D].北京:中国地质大学(北京),2005.
[9] LUCIA F J.Rock-fabric/petrophysical classification of carbonate pore space for reservoir characterization [C]//AAPG Bulletin,1995:1275-1300.
[10] 干孟光.海拉尔盆地乌南地区复杂岩性识别方法、储层分类研究 [D].长春:吉林大学,2010.
[11] 赵翰卿.喇萨杏油田表外储层地质特征研究 [R].大庆:大庆油田勘探开发研究院,1989.
[12] 李卿卿,胡伟,高宇.大庆杏六区中部油藏各类油层水洗状况评价 [J].油气地球物理,2013,11(3):50-53.
[13] 刘义坤,王凤娇,胡超洋,等.薄差储层油水渗流规律研究 [J].特种油气藏,2013,20(5):89-92.
[14] 钟淑敏,刘传平,章华兵.低孔低渗砂泥岩储层分类评价方法 [J].大庆石油地质与开发,2011,30(5):167-170.
[15] 徐慧,林承焰,孙彬,等.低渗透油藏分层动用状况判别方法 [J].西南石油大学学报(自然科学版),2013,35(4):95-100.
*非法定计量单位,1 mD=9.87×10-4 μm2,下同