Study of Shale Gas Debris' Fractal Theory and Rock Drillability
Jianbin Wang, Yan Zhang, Hongfeng Zhou, Hui Min Guo, Hongqing Lu, Qicheng Zhou · 2016
With the developing of shale gas industry, in order to predict rock drillability in drilling time, we should set up the rock drillability profile, which has significant meaning. The article introduces the fractal theory briefly and gives detailed theoretical derivation on fractal dimension D. It has many disadvantages in actual production like short of core and high-cost. In this article, it uses upward shale gas debris to study rock drillability. In view of the FuLing-shale-gas-blocks, this article establishes a relationship between fractal di- mension and drillability of extremum, the model has high fitting degree, which has considerable meaning for the actual production. KEYWORD: Fu-Ling area; Debris; Fractal; Drillability; Fractal dimension