摘要
新疆准噶尔盆地J凹陷致密油储层存在"甜点"预测不准、单井产量差异大的问题,影响油田规模效益开发。通过系统分析研究区钻井与地震等大量基础数据,确定了影响"甜点"预测的5个关键属性,并对属性进行分类和RGB颜色融合分析,得到"地质甜点"和"工程甜点"预测结果,进一步融合得到综合"甜点"区,并由此形成了致密油"甜点"多属性融合预测技术。研究区勘探评价井压裂后的生产效果表明,勘探开发评价井压裂效果和综合"甜点"区预测结果吻合程度较高。在此基础上,2017年,在Ⅰ类综合"甜点"区部署2口水平井,压裂改造后效果良好,进一步验证了"甜点"多属性融合预测技术的可靠性。该"甜点"预测技术准确可靠,对致密油后期开发评价及产能建设井位部署具有很强的指导作用。
There are some problems such as inaccurate prediction of “sweets” and large differences in single well production in tight oil reservoirs of J sag in the Junggar Basin, Xinjiang Uygur Autonomous Region, which affect the scale benefit development of the oil fields. Based on the systematic analysis of a large number of drilling and seismic basic data of the study area, 5 key attributes affecting the prediction of “sweets” were determined;the attributes were classified and RGB color fusion analysis was carried out on them, and the “geologic sweet” and “engineering sweet” prediction results were obtained;by means of further fusion, the integrated “sweet zone” was obtained, and the multi-attribute fusion prediction technique for tight oil “sweets” was formed accordingly. The production response after fracturing of exploration appraisal well in the study area shows that the fracturing effect of exploration and development appraisal well is in good agreement with the prediction results of the integrated “sweet zone”. On the basis of which, 2 horizontal wells were drilled in class I integrated “sweet zone” in 2017, and the effect after fracturing stimulation was good, further confirming the reliability of multi-attribute fusion prediction technique for tight oil “sweets”. The “sweet” prediction technique is accurate and reliable, and can play a strong guiding role in the later development evaluation and well allocation for productivity construction of tight oil reservoir.
作者
韩飞鹏
宋光建
吴振坤
沈玺琳
韩飞程
Han Feipeng;Song Guangjian;Wu Zhenkun;Shen Xilin;Han Feicheng(PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;PetroChina Jilin Petrochemical Company, Jilin, Jilin 132000, China;PetroChina Yumen Oilfield Company, Jiuquan, Gansu 735019, China)
出处
《特种油气藏》
CAS
CSCD
北大核心
2019年第1期94-99,共6页
Special Oil & Gas Reservoirs
基金
国家重点基础研究发展("973"计划)项目"陆相致密油高效开发基础研究"(2016ZX05046-004)
