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首页> 外文期刊>Natural Gas Industry B >Rapid shale gas development accelerated by the progress in key technologies: A case study of the Changning–Weiyuan National Shale Gas Demonstration Zone
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Rapid shale gas development accelerated by the progress in key technologies: A case study of the Changning–Weiyuan National Shale Gas Demonstration Zone

机译：关键技术的进步促进了页岩气的快速发展：以长宁—威远国家页岩气示范区为例

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Shale gas resources in the Lower Silurian Longmaxi, southern Sichuan Basin, are huge, where, the geological setting, unlike that in North America, is quite complicated and ground surface infrastructure is poor. Therefore, adaptable key technologies will be essential to achieve commercial exploitation of shale gas there. In the case study of the Changning–Weiyuan National Shale Gas Demonstration Zone, six series of key techniques were summarized in comprehensive geological evaluation, development optimization, fast and superior drilling of horizontal wells, horizontal-well volumetric fracturing, cluster-well and factory-like operation in well blocks, and highly-efficient and clean exploitation. The above techniques were applied in this field after three rounds of adjustment and optimization, the resulted production rates of shale gas wells were getting higher and higher and the single-well estimated ultimate recovery (EUR) was also rising. Compared with that in the first round, the average EUR of wells in the third round was increased by 128%. In conclusion, the application practices prove that the above series of key techniques with adaptation and flexibility provide a robust technical support for the rapid output of shale gas production in South Sichuan Basin.
机译：四川盆地南部下志留统龙马溪下的页岩气资源巨大，与北美不同，这里的地质环境十分复杂，地表基础设施也很差。因此，适应性关键技术对于在那里实现页岩气的商业开发至关重要。以长宁—威远国家页岩气示范区为例，总结了地质综合评价，开发优化，水平井快速优钻，水平井体积压裂，集束井和工厂化等六项关键技术。例如在油井中作业，以及高效清洁的开采。经过三轮的调整和优化，以上技术在该领域得到了应用，页岩气井的产出率越来越高，单井估计的最终采收率（EUR）也在不断提高。与第一轮相比，第三轮井的平均欧元提高了128％。总之，应用实践证明，以上一系列具有适应性和灵活性的关键技术为川南盆地页岩气生产的快速产出提供了有力的技术支持。

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