MDT电缆地层测试资料在油田高含水开发期的应用

Application of MDT in oilfield development in high water-out period

进入高含水后期开发的油田,由于长期的注水开发和储层的严重非均质性,使得小层压力及水淹状况在纵向上分布不均,寻找高压异常层及确定油层的剩余油潜力是油田开发的难题。MDT电缆地层测试主要测试小层的压力及渗流能力,并通过取样和OFA光学流体分析确定流体性质。通过对这些地层参数资料的分析,研究地层压力的分布状况,找出高压层和研究油层的渗流能力,确定油层的水淹状况及油水同层的液体性质,指导射孔方案的编制等。

As oilfields turn into high water-out period, the pressure of every layer and distribution of water-flooded place are confused by sandstone formation heterogeneity and injected water development. So it is difficult to look for layers with super pressure and potential remaining oil in oilfield development. MDT(Modular Formation Dynamics Tester Tool)mainly tests pressure and seepage ability of layers, and identifies fluid though analysing samples from MDT and OFA (Optical Fluid Analyzer).So MDT can play an important role in oilfield development such as researching distribution of formation pressure, especially in finding layer with super pressure, researching oil sandstone formation, identifying water-flooded sandstone formation, identifying fluid in oil-water formation and directing perforation by analyzing these formation parameters.