庆城页岩油泵入式光纤监测技术实践
Practice of Pump in Optical Fiber Monitoring Technology in Shale Oil Wells of Qingcheng Oilfield
马兵 1徐创朝 1陈强 1李晓燕 1张同伍1
作者信息
- 1. 中国石油长庆油田分公司油气工艺研究院;低渗透油气田开发国家工程重点实验室
- 折叠
摘要
庆城油田页岩油水平井主体采用分段多簇细分切割体积压裂技术,但目前仍存在多簇起裂效率不清晰的问题.为了评价多簇起裂有效性及裂缝延伸规律,开展了水平井泵入式光纤测试技术先导性试验,该技术具有工艺灵活、便捷高效及成本低的独特优势.测试结果表明,水平井分段多簇细分切割体积压裂通过射孔限流+颗粒暂堵方式,能够实现 100%多簇完全起裂,但各簇进砂(液)量差异明显,各簇裂缝延伸不均衡.该项研究初步回答了多簇起裂有效性问题,并验证了水平井套管内泵入式光纤监测技术的可行性,丰富了水平井体积压裂效果评估测试手段,同时为鄂尔多斯盆地页岩油水平井压裂工艺及参数优化提供了重要依据.
Abstract
Staged multi-cluster subdivided volume fracturing technology is adopted in horizontal shale oil wells of the Qingcheng Oilfield,but the multi-cluster fracture initiation efficiency remains unclear.In order to evaluate the multi-cluster fracture initiation effectiveness and fracture propagation law,the first pilot test on pump in optical fiber measuring and testing technology in horizontal well in petroleum industry was carried out.This technology has unique advantages such as flexible process,convenient and efficient operation and low cost.The test results show that the staged multi-cluster subdivided volume fracturing technology of horizontal well can achieve 100%multi-cluster complete fracture initiation through perforation restriction + particle temporary blocking mode,but there are significant differences in the amount of sand and liquid inflow in each cluster,and the propagation of fractures in each cluster is uneven.This study preliminarily answers the effectiveness of multi-cluster fracture initiation that has beset the industry for many years,verifies the feasibility of pump in optical fiber monitoring technology in horizontal well casing,enriches the evaluation and testing methods for horizontal well volume fracturing,and provides an im-portant basis for the fracturing technology and parameter optimization of shale oil horizontal wells in the Ordos Basin.
关键词
页岩油/水平井/体积压裂/起裂效率/光纤监测/压裂工艺/庆城油田Key words
shale oil/horizontal well/volume fracturing/fracture initiation efficiency/optical fiber monito-ring/fracturing technology/Qingcheng oilfield引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据