海拉尔油田高应力储层测试压裂分析-《油气井测试》

文章信息/Info

Title:: Test fracturing analysis of high stress reservoirs in Hailar Oilfield

作者:: 何琛1; 2; 蒋建方1; 2; 张明慧3; 吴浩兵3; 金玲1; 2; 冯章语1; 2; 1.中国石油大学非常规油气科学技术研究院北京 102249
2.中国石油大学石油工程教育部重点实验室北京 102249
3.中国石油大庆油田有限责任公司采油工程研究院黑龙江大庆 163453

Author(s):: HE Chen1; 2; JIANG Jianfang1; 2; ZHANG Minghui3; WU Haobing3; JIN Ling1; 2; FENG Zhangyu1; 2; 1.Institute of Unconventional Oil and Gas Science and Technology, China University of Petroleum (Beijing), Beijing 102249, China
2.MOE Key Laboratory of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
3.Research Institute of Oil Production Engineering, PetroChina Daqing Oilfield, Daqing, Heilongjiang 163453, China

Keywords:: Hailar Oilfield; small fracturing; high stop pump pressure; high stress gradient; sand ratio; sand blocking rate; application effect

摘要:: 随着储层改造深入，施工工况愈加复杂，高停泵压力梯度、高闭合应力、低砂比严重制约了储层评价与开发效果。为进一步优化主压裂设计，提高大庆海拉尔油田南屯组储层压裂砂比、降低砂堵率，采用FracproPT2011压裂软件，对该区高应力储层15口井进行小型测试压裂解释与分析，结合对地层特征的认识，完成了南屯组高应力储层15口井的主压裂施工设计优化与实施。优化后的主压裂施工参数说明，南屯组储层平均砂比由原来的7%提高到136%，最高砂比由137%提高到254%，砂堵率由40%降低到133%，提高了压裂施工效果。海拉尔油田南屯组高应力储层小型测试压裂分析提升了主压裂施工优化设计与矿场实施效果，对类似致密岩、砂砾岩等高停泵压力、高应力储层的作业具有一定指导意义。

Abstract:: With the deepening of reservoir reform, the construction conditions are more and more complicated. The high pressure gradient when pump stopping, high closed stress and low sand ratio severely restrict the evaluation and development of reservoirs. The small test fracturing interpretation and analysis of 15 wells in the high stress reservoir were carried out with FracproPT2011 fracturing software to optimize the main fracturing design and improve the reservoir fracturing sand ratio and reduce the sand blocking rate of the Nantun formation in Daqing Hailar Oilfield. Based on the analysis and understanding of the characteristics of the strata, the design and implementation of the main fracturing construction of 15 wells in the highstress reservoir of the Nantun formation were completed. The optimized main fracturing construction parameters show that the average sand ratio of the Nantun formation reservoir increased from 7% to 136%, the highest sand ratio increased from 137% to 254%, the sand blocking rate decreased from 40% to 133%. The effect of fracturing construction is improved. This paper has certain guiding significance for the operation of highstop pump pressure and highstress reservoirs in tight rock and glutenite formation.