联探并采:非常规油气资源勘探开发持续发展自我救赎之路

Joint exploration and development:A self-salvation road to sustainable development of unconventional oil and gas resources

非常规油气资源要实施大规模工程措施才能获得经济产量,但增加作业成本导致勘探开发利润微薄,加之安全环保要求日益严苛、油气价格低位徘徊,对投资者的信心造成了不小的打击,迫切需要用非常规的思维来指导非常规油气资源的勘探开发活动。为此构想:集成适合多种油气资源勘探开发的研究方法和作业技术,实现多种资源信息一并分析、多种资源作业一同施工、多种资源产出一起采集,把通常认为同井开采多种资源相互干扰降低单井产量的顾虑变成相互利用提高单井产量的动力,即多种油气资源联合勘探、一并开发,简称为联探并采。主要依据是油气资源赋存状况决定了联探并采的必然性,技术发展奠定了联探并采的可行性,目前的能源环境决定了联探并采的艰巨性和长期性。结论认为,尽管面临诸多困难,但上述构想不失为一种可行的选择,其实施效果表现为投入相对减少、产量相对增加、企业利润增加、投资者信心提升、能源综合利用效率提高、能源供给状况得以改善,对企业和国家均利大于弊。

Abstract： Commercial production of unconventional oil and gas resources will not be easily achieved without large-scale engineering measures, let alone the additional operation cost, increasingly stricter requirement for safety and environment, fluctuating low oil and gas prices, etc., defeating the confidence of those investors. Therefore, unconventional measures are urgently needed to guide the exploration and exploitation of unconventional oil and gas resources. Thus, we put forward the concept of joint exploration and development by integrating research methodologies and operating techniques for a variety of oil and gas resources to achieve simultaneous analysis, construc- tion, gathering and exploitation of multiple hydrocarbon sources. In this way, the annoying interference between the produced mixture of hydrocarbon flow resulting in the reduction of single-well flowrate will be possibly turned into a dynamic mutual force to enhance the well＇s flowrate. We also point out that the inevitability of joint exploration and development is determined by the occurrence conditions of oil and gas resources, its feasibility relies on the advancement of technologies, and its arduous and long-term nature is attributed to the current energy market and environment. In spite of various problems and difficulties, we believe that joint exploration and development will be a feasible option to achieve both cost reduction and production ＆ benefit enhancement, boost investors＇ confidence, raise energy comprehensive utilization, and enhance energy supply efficiency. In conclusion, the advantages of joint exploration and development outweigh its disadvantages for both countries and enterprises. Keywords： Unconventional oil and gas resources; Joint exploration and development; Integrated development; Coalbed methane （CBM）; Tight sandstone gas; Shale gas; Tight oil; Economical efficiency; Cost; Benefit