发明名称 METHOD FOR DETERMINATION OF PARAMETERS FOR WELL BOTTOMHOLE AND BOTTOMHOLE AREA
摘要 FIELD: oil and gas industry.SUBSTANCE: invention is related to the area of wells completion and testing in oil industry and intended for calculation of parameters for the well bottomhole and bottomhole area. The method where in process of string movement in the well pressure is measured by two sensors, at that one sensor is installed over the packer while the second one is installed below the packer. According to results of pressure measurement fluid density is determined and then flowing bottomhole pressure is determined on the basis of fluid density, gravity constant, preset rate of drilling string motion, cross-sectional area of the drilling string, formation pressure, and productivity index of the well.EFFECT: potential determination of parameters for the well bottomhole and bottomhole area during round-trip operations with further calculation of liquid influx/reflux at the bottomhole and calculation of skin factor, permeability or thickness of the reservoir.13 cl, 5 dwg
申请公布号 RU2535324(C2) 申请公布日期 2014.12.10
申请号 RU20120155806 申请日期 2012.12.24
申请人 SCHLUMBERGER TECHNOLOGY B.V. 发明人 THEUVENY BERTRAND
分类号 E21B47/06 主分类号 E21B47/06
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