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针对G油田GD研究区非均质油藏精细描述及调整挖潜工作,开展非均质油藏单井控制计算储量及剩余油潜力分布研究。分析单井控制计算非均质油藏储量参数,将油层有效厚度、物性和原油性质相同的油层控制在一个单井计算单元内,利用井点面积权衡法确定单井控制含油面积,有效厚度则以每口井所钻遇有效厚度和周围井及边界井权衡确定。从而较好地克服了非均质油砂层边界信息变化及其参数平面和纵向上差异的影响,有效计算出各开发层位单井控制地质储量、技术可采储量、油气产出量和剩余可采储量。文中实例阐述了单井控制计算储量及其剩余可采储量的分析方法,提供出剩余油潜力最大的长611、长613,相对较大的长622、长632、长64和较小的长621、长631开发层位剩余油分布富集具体井位、富集量及其挖潜规模和范围,阐明了油田区块调整和高效开发的主要方向。
Aiming at the fine description, adjustment and tapping potential of heterogeneous reservoirs in the GD research area of G Oilfield, the research on single well control calculated reserves and residual oil potential distribution in heterogeneous reservoirs is carried out. Analysis of single-well control calculation of heterogeneous reservoir reserves parameters, the reservoir effective thickness, physical properties and the nature of crude oil control in a single-well calculation unit, the use of well-point area trade-off method to determine the oil content of single-well control, the effective thickness The effective thickness of each well drilled and the balance between the surrounding well and the boundary well were determined. So as to overcome the influence of variation of boundary information of heterogeneous oil sands layer and the difference between its plane and vertical parameters in heterogeneous oil sands layers and effectively calculate the single well control geological reserves, technologically recoverable reserves, oil and gas output and remaining Recoverable reserves. An example is given to illustrate the analysis of single well control calculated reserves and their remaining recoverable reserves, providing a long 611, a long 613, a relatively long 622, a long 632, a long 64 and a long 621 with the largest remaining oil potential , And the remaining oil distribution in Chang 631 development site enriched the specific well location, enrichment volume and the scale and scope of tapping potential. The main directions for the block adjustment and efficient development of the oilfield are clarified.