Igneous rock stratum in Daqing is the world-class difficult drilling formation. The rock drilled in the stratum have high drillability value and poor adaptability with drill bit. Evaluating rock drillability distribution rule before strata has been opened has practical significance to guidance of drilling construction. The paper is based on the random fractal theory. Rock drillability of rock debris sampling points are calculated by debris fractal dimension explanation model. Strata rock drillability prediction model between wells is established by fractal interpolation theory. The rock drillability distribution rule between wells can been evaluated through the combination of the two models. Through application,the method can effectively represent the rock drillability fractal distribution rule,predict accurately and meet the engineering accuracy.
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毕雪亮,赵英楠,王玉芳,等. 徐深气田火成岩储层岩石可钻性分布规律研究[J]. 科学技术与工程, 2011, (33): . bixueliang, zhaoyingnan, dujieyu, et al. The Research Of Rock Drillability Distribution Rule of Igneous Reservoirs in XuShen Gas Field[J]. Science Technology and Engineering,2011,(33).