公开(公告)号：US20110088949A1

公开(公告)日：2011-04-21

申请号：US12990980

申请日：2009-05-06

申请人： Youxiang (Jullan) Zuo ,  Dingan (Dan) Zhang ,  Dong Chengli ,  Oliver C. Mullins ,  Michael O'Keefe

发明人： Youxiang (Jullan) Zuo ,  Dingan (Dan) Zhang ,  Dong Chengli ,  Oliver C. Mullins ,  Michael O'Keefe

IPC分类号： E21B21/08 ,  G01V9/00 ,  G06F19/00

CPC分类号： E21B49/10 ,  E21B49/08

摘要： A method and system for characterizing formation fluids contaminated with drilling mud that compensates for the presence of such drilling mud. The operations that characterize formation fluids contaminated with drilling mud can be carried out in real-time. The operations also characterize a wide array of fluid properties of petroleum samples contaminated with drilling mud in a manner that compensates for the presence of drilling mud. The operations characterize the viscosity and density of petroleum samples contaminated with drilling mud at formation conditions in a manner that compensates for differences between formation conditions and flowline measurement conditions. The operations also derive live fluid density unaffected by contamination of mud filtrate based on a scaling coefficient dependent on measured gas-oil ratio of the formation fluid. This scale factor accounts for excess volume created during mixing processes, which increases the accuracy of characterizations for high gas-oil ratio samples, especially gas condensate.

摘要翻译： 用于表征钻井泥浆污染的地层流体的方法和系统，其补偿这种钻井泥浆的存在。 表征钻井泥土污染地层流体的作业可以实时进行。 这些操作还以补偿钻井泥浆的存在的方式表征了用钻井泥浆污染的石油样品的各种流体性质。 该操作表征了在形成条件下以钻井泥浆污染的石油样品的粘度和密度，以补偿地层条件和流线测量条件之间的差异。 这些操作还基于取决于地层流体的瓦斯 - 油比的测量系数，导出不受泥浆滤液污染影响的活体密度。 该比例因子考虑到在混合过程中产生的过剩体积，这增加了高瓦斯油比样品，特别是气体凝析油的表征的准确性。

公开(公告)号：US08805617B2

公开(公告)日：2014-08-12

申请号：US12990980

申请日：2009-05-06

申请人： Youxiang (Jullan) Zuo ,  Dingan (Dan) Zhang ,  Dong Chengli ,  Oliver C. Mullins ,  Michael O'Keefe

发明人： Youxiang (Jullan) Zuo ,  Dingan (Dan) Zhang ,  Dong Chengli ,  Oliver C. Mullins ,  Michael O'Keefe

IPC分类号： G01V1/00

CPC分类号： E21B49/10 ,  E21B49/08

摘要： A method and system for characterizing formation fluids contaminated with drilling mud that compensates for the presence of such drilling mud. The operations that characterize formation fluids contaminated with drilling mud can be carried out in real-time. The operations also characterize a wide array of fluid properties of petroleum samples contaminated with drilling mud in a manner that compensates for the presence of drilling mud. The operations characterize the viscosity and density of petroleum samples contaminated with drilling mud at formation conditions in a manner that compensates for differences between formation conditions and flowline measurement conditions. The operations also derive live fluid density unaffected by contamination of mud filtrate based on a scaling coefficient dependent on measured gas-oil ratio of the formation fluid. This scale factor accounts for excess volume created during mixing processes, which increases the accuracy of characterizations for high gas-oil ratio samples, especially gas condensate.

摘要翻译： 用于表征钻井泥浆污染的地层流体的方法和系统，其补偿这种钻井泥浆的存在。 表征钻井泥土污染地层流体的作业可以实时进行。 这些操作还以补偿钻井泥浆的存在的方式表征了用钻井泥浆污染的石油样品的各种流体性质。 该操作表征了在形成条件下以钻井泥浆污染的石油样品的粘度和密度，以补偿地层条件和流线测量条件之间的差异。 这些操作还基于取决于地层流体的瓦斯 - 油比的测量系数，导出不受泥浆滤液污染影响的活体密度。 该比例因子考虑到在混合过程中产生的过剩体积，这增加了高瓦斯油比样品，特别是气体凝析油的表征的准确性。