| Hua Qing is located within the Hua Qingshan Township, Wuqi County, Shaanxi Provinceand Gansu provinces the Huachi Joe Township, an area of about1670square kilometers, is thelandform of the Loess Plateau. Surface for100~200m thick Quaternary loesscover complex terrain, ravines, Mountain Ridge varies. Cut deeper river valley, showing the barerock. Ground elevation of1350~1660m, the relative elevation310m or so. This is located in theOrdos Basin, southwest of the Iraqi Shan Slope of Yanchang six major developmental delta frontthe underwater distributary channels and gravity flow deposition superimposed large lithologicreservoir.In this paper, the Ordos Basin Hua Qing Chang6reservoir production scale has built twolow permeability blocks for the research objectives, through the analysis of water samples, seewells classified research to determine fractured see wells, and press the cracksscale, crackscauses; combined tracer, water displacement front interference test, water injection profilefractured see the wells to carry out the runoff direction of research, summarize the laws offracture development; carried out to see the wells governance research to develop suitableultra-lowpermeability reservoirs water Blocking Technology requirements and Practice,construction parameters, and the study of the water shutoff indoor test; combined blockproduction status, proposed reasonable well spacing and measures to rehabilitate the strength ofopinion; prevention wells fractured waterflooded technology Policy Research, and to choosecontrast well test. |
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