大庆长垣扶余致密油水平井测井解释
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摘要
对大庆长垣扶余致密油藏水平井、导眼井或邻井测井和取心资料分析,搞清了水平井与直井的测井响应特征和差异,建立了井眼轨迹与地层几何关系确定方法和步骤。在"七性"参数评价成果基础上,总结了水平井甜点段、射孔位置划分原则和方法。通过对扶余油层已试20口水平井产能影响因素分析,优选水平段长度、有效孔隙度、含油饱和度、脆性指数和砂体厚度等参数,采用类比法建立了水平井产能预测模型。研究成果对水平井射孔位置、压裂段确定等工程设计提供了重要依据,对大庆长垣扶余致密油增储上产具有重要意义。
How to use horizontal well LWD and Wireline logging data to determine the relationship between horizontal well borehole trajectory and stratum, calculate reservoir parameters, preferably select sweet spot section for fracturing, etc., has become an urgent problem to be solved in Fuyu tight reservoir of Daqing Changyuan oilfield. Through the analysis of the logging and coring data of horizontal well, pilot well or adjacent well, the logging response characteristics and differences of horizontal well and straight well were determined, and the methods and workflow of obtaining the relationship between borehole trajectory and stratum were established. Based on the evaluation results of "seven characters " parameters, the principle and method of evaluating the dessert section and perforation position of horizontal well were summarized. Moreover, based on the test data of 20 horizontal wells in the study area, the factors affecting the capacity were analyzed, the parameters such as horizontal section length, effective porosity, oil saturation, brittle index and sand body thickness were optimized, and the productivity prediction model of horizontal well was established by analogy method. The research results provide an important basis for engineering design such as perforation position and fracturing section determination of horizontal well, which was of great significance to reserve and production increment of Fuyu tight oil in Daqing Changyuan oilfield.
How to use horizontal well LWD and Wireline logging data to determine the relationship between horizontal well borehole trajectory and stratum, calculate reservoir parameters, preferably select sweet spot section for fracturing, etc., has become an urgent problem to be solved in Fuyu tight reservoir of Daqing Changyuan oilfield. Through the analysis of the logging and coring data of horizontal well, pilot well or adjacent well, the logging response characteristics and differences of horizontal well and straight well were determined, and the methods and workflow of obtaining the relationship between borehole trajectory and stratum were established. Based on the evaluation results of "seven characters " parameters, the principle and method of evaluating the dessert section and perforation position of horizontal well were summarized. Moreover, based on the test data of 20 horizontal wells in the study area, the factors affecting the capacity were analyzed, the parameters such as horizontal section length, effective porosity, oil saturation, brittle index and sand body thickness were optimized, and the productivity prediction model of horizontal well was established by analogy method. The research results provide an important basis for engineering design such as perforation position and fracturing section determination of horizontal well, which was of great significance to reserve and production increment of Fuyu tight oil in Daqing Changyuan oilfield.
引文
[1] 崔宝文,林铁锋,董万百,等.松辽盆地北部致密油水平井技术及勘探实践 [J].大庆石油地质与开发,2014,33(5):16-22.
[2] 尹洪军,杨春城,唐鹏飞,等.大庆长垣YP1超长水平井分段压裂优化设计 [J].特种油气藏,2014,21(5):68-71.
[3] 孙建孟,张鹏云,冯春珍,等.LS油田水平井地层评价方法研究 [J].测井技术,2016,40(6):675-682.
[4] 李谦,李庆合,马建英,等.水平井测井评价技术在大港油田的应用 [J].测井技术,2008,32(5):455-459.
[5] 周灿灿,王昌学.水平井测井解释技术综述 [J].地球物理学进展,2006,21(1):152-160.
[6] 汪中浩,罗少成,陈冬,等.水平井地层电阻率各向异性研究及应用 [J].石油物探,2006,45(5):546-552.
[7] 司马立强,李杨.随钻地层评价技术面临的问题、现状与展望 [J].测井技术,2012,36(1):8-13.
[8] 唐钦锡.水平井地质导向技术在苏里格气田开发中的应用:以苏10和苏53区块为例 [J].石油与天然气地质,2013,34(3):388-393.
[9] 许杰,董宁,朱成宏,等.致密砂岩地震预测在水平井眼轨迹设计中的应用 [J].石油与天然气地质,2012,33(6):909-913.
[10] 王晓莲,郑建东,章华兵,等.长垣南地区扶余致密油层物性下限确定及分类 [J].大庆石油地质与开发,2015,34(6):148-153.
[11] 刘启国,蒋艳芳,张烈辉.低渗透气藏水平井产能计算新公式 [J].特种油气藏,2011,18(5):71-74.
[12] 金成志.水平井分段改造示踪剂监测产量评价技术及应用 [J].油气井测试,2015,24(4):38-42.
*非法定计量单位,1ft=12in=0.3048m,下同
[2] 尹洪军,杨春城,唐鹏飞,等.大庆长垣YP1超长水平井分段压裂优化设计 [J].特种油气藏,2014,21(5):68-71.
[3] 孙建孟,张鹏云,冯春珍,等.LS油田水平井地层评价方法研究 [J].测井技术,2016,40(6):675-682.
[4] 李谦,李庆合,马建英,等.水平井测井评价技术在大港油田的应用 [J].测井技术,2008,32(5):455-459.
[5] 周灿灿,王昌学.水平井测井解释技术综述 [J].地球物理学进展,2006,21(1):152-160.
[6] 汪中浩,罗少成,陈冬,等.水平井地层电阻率各向异性研究及应用 [J].石油物探,2006,45(5):546-552.
[7] 司马立强,李杨.随钻地层评价技术面临的问题、现状与展望 [J].测井技术,2012,36(1):8-13.
[8] 唐钦锡.水平井地质导向技术在苏里格气田开发中的应用:以苏10和苏53区块为例 [J].石油与天然气地质,2013,34(3):388-393.
[9] 许杰,董宁,朱成宏,等.致密砂岩地震预测在水平井眼轨迹设计中的应用 [J].石油与天然气地质,2012,33(6):909-913.
[10] 王晓莲,郑建东,章华兵,等.长垣南地区扶余致密油层物性下限确定及分类 [J].大庆石油地质与开发,2015,34(6):148-153.
[11] 刘启国,蒋艳芳,张烈辉.低渗透气藏水平井产能计算新公式 [J].特种油气藏,2011,18(5):71-74.
[12] 金成志.水平井分段改造示踪剂监测产量评价技术及应用 [J].油气井测试,2015,24(4):38-42.
*非法定计量单位,1ft=12in=0.3048m,下同
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