“人工油气藏”理论、技术及实践

发布时间：2018-03-25 19:20

本文选题：致密油气　切入点：页岩油气　出处：《石油勘探与开发》2017年01期

【摘要】：低渗透、致密油气及页岩油气在全球能源格局中占据愈发重要的地位,面临动用难度大、产量递减快、采收率低、开采成本高等亟需解决难题。为此提出"人工油气藏"开发新概念、新理念及技术方法新体系。提出以"甜点区"为基本单元,对渗透性差的油气区采取压裂、注入与采出一体化方式,形成一个"人工油气藏",以提高采收率并进行规模经济开发。通过井群开发、压裂造缝和针对性流体介质注入,改变地下流体渗流环境和补充地层能量,在"甜点区"单元内形成"人造高渗透区"与"重构渗流场",建立了"人工油气藏"地质、开发、生产、管理和决策综合信息管理系统,实现低渗透、致密油气与页岩油气大规模、有效益、可持续开发。创建了基于大数据的三维地震地质"甜点区"评价技术、井群大平台开发技术、体积改造人工智能造缝技术、渗吸置换与能量补充开采技术、基于云计算的"人工油气藏"智能管理技术,构建智慧油气田。在国内5大致密油气、页岩气区开展235井次先导性试验,致密油压采效果比以往常规技术提高2倍,页岩气实现商业开发,展示出良好应用前景。
[Abstract]:Low permeability, tight oil and gas and shale oil and gas play an increasingly important role in the global energy pattern. This paper puts forward a new concept, new concept and new technical method system of "artificial oil and gas reservoir" development, and puts forward that taking "dessert area" as the basic unit, taking "dessert area" as the basic unit, fracturing the oil and gas area with poor permeability. By integrating injection and production, a "artificial reservoir" is formed in order to increase oil recovery and carry out economies of scale development. Through well group development, fracturing and fracturing, and targeted fluid injection, Changing the seepage environment of underground fluid and replenishing formation energy, forming "artificial high permeability zone" and "reconstructing seepage field" in "dessert area" unit, establishing "artificial oil and gas reservoir" geology, development and production, A comprehensive information management system for management and decision-making is developed to achieve large-scale, cost-effective and sustainable development of low permeability, dense oil and gas and shale oil and gas. A three-dimensional evaluation technology of seismic geology "dessert area" based on big data is established. Well group large platform development technology, volume transformation artificial intelligence fracturing technology, permeation replacement and energy supplementary exploitation technology, "artificial reservoir" intelligent management technology based on cloud computing to construct intelligent oil and gas field. 235 pilot tests were carried out in shale gas area, and the effect of tight oil pressure recovery was 2 times higher than that of conventional technology. The commercial exploitation of shale gas showed a good application prospect.
【作者单位】：中国石油勘探开发研究院;中国石油勘探开发研究院廊坊分院;
【基金】：国家重点基础研究发展计划(973)项目(2014CB239000)
【分类号】：TE3

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