加拿大M致密砂岩气藏高效开发技术

High-Efficient Development Technologies for the M Tight Sandstone Gas Reservoir in Canada

王平 沈海超

WANG Ping SHEN Haichao

中国石化集团国际石油勘探开发有限公司，北京 100029

Sinopec International Petroleum Exploration and Production Corporation, Beijing, 100029, China

针对低气价下加拿大M致密砂岩气藏如何实现经济高效开发的问题，开展了开发层系划分、钻井完井施工参数优化、优快钻井完井施工及压后返排和井工厂开发等方面的技术攻关，形成了地质工程一体化的巨厚砂岩储层开发层系划分技术、机器学习大数据分析钻井完井施工参数匹配技术、水平井低成本优快钻井技术、闷井返排技术及井工厂立体开发技术等关键技术。现场应用后，M致密砂岩气藏钻井完井施工效率大幅提升，钻井完井成本显著降低，单井产能显著提升，实现了效率增、成本降的良好局面。M致密砂岩气藏的成功开发，为我国非常规气藏高效开发提供了技术借鉴。

In order to realize the economical and high-efficient development of the M tight sandstone gas reservoir in Canada, technical studies and innovations about layer subdivision, optimization of operation parameters during drilling and completion, optimal and fast drilling, post-frac flowback, and multi-well pad development were conducted. In this way, the key technologies integrated geology and engineering were formed, including a layer subdivision technology of a super thick sandstone reservoir, a match technology of operation parameters during drilling and completion by machine learning and big data analysis, optimal and fast drilling of horizontal wells with low costs, well-soaking flowback, as well as 3D multi-well pad development, etc. After field application, these technologies sharply increased the drilling and completion efficiency with evident decreased development costs. Further, the single well witnessed a remarkable increase in productivity, and achieved significantly increased efficiency and reduced costs. The successful development of the M tight sandstone gas reservoir has provided a technical reference for high-efficient development of unconventional reservoirs in China.

https://doi.org/10.11911/syztjs.2021123