构造滤波分析技术在火烧山油田H2层裂缝预测中的应用

THE APPLCATION OF THE ANALYSIS-OF-STRUCTURAL-FILTERING TECHNOLOGY IN PREDICTION OF H2 FRACTURE IN OF HUOSHAOSHAN OIL FIELD

新疆准噶尔东部火烧山油田长轴近似南北向的背斜构造。油藏储集层基质孔渗低,而裂缝却十分发育,裂缝主要受构造应力控制,同时岩性也起相当作用。裂缝多发于在细粉砂岩之中,裂缝发育对于极低渗透油藏储集层流动能力贡献很大,要充分发挥油藏储集层裂缝在开发中积极作用而尽量减小其负面影响。如果在注采井网优化调整,以及在增产措施实施之前就能对裂缝有较为准确的预测,就会大大提高开发效果。构造滤波分析技术是预测裂缝发育区域的有效技术之一。本文应用构造滤波分析技术对火烧山油田H2层油藏储集层裂缝进行了精细分析研究,有效利用与规避裂缝,提高注采对应与增产措施的有效性。

Axis of Huoshaoshan oil field in eastern Junggar xinjiang is an approximate north-south anticline.Matrix of reservoir is with low porosity and permeability but fractures are well developed,cracks are mainly controled by the tectonic stress,but lithology also plays a considerable role.Multiple cracks are in the fine sand which plays more and more active role in the development of reservoir layer,at the same time its negative effects should be minimized.If we can have a more accurate forecast to cracks in advance,development results will be improved greatly.Analysis of structural filtering is one of predicting structural fracture zone effective technolgies.In this paper,using analysis of structural filtering in H2 layer of Huoshaoshan oil field to conduct a detailed analysis,cracks are used and avoided effectively so as to improve the effectiveness of corresponding injection and stimulation measures.