公开(公告)号：US09068438B2

公开(公告)日：2015-06-30

申请号：US13358268

申请日：2012-01-25

申请人： Holger Stibbe ,  Russell Mceacharn ,  James T. Cernosek ,  Anthony D. Self ,  Avigdor Hetz

发明人： Holger Stibbe ,  Russell Mceacharn ,  James T. Cernosek ,  Anthony D. Self ,  Avigdor Hetz

IPC分类号： E21B49/08 ,  E21B49/10

CPC分类号： E21B49/10 ,  E21B49/08 ,  E21B49/081

摘要： Disclosed is a formation testing tool for extracting formation fluid from an earth formation penetrated by a borehole having a drilling fluid. The tool includes: a sample flow element configured to extract formation fluid from the formation in a sample zone; a sample zone seal forming a perimeter defining the sample zone; a contamination removal flow element configured to extract formation fluid contaminated with the drilling fluid from a contamination removal zone in the formation; a contamination removal zone seal forming a perimeter defining the contamination removal zone, which surrounds and excludes the sample zone; and a controller configured to control a sample flow rate in the sample flow element and a contamination removal flow rate in the contamination flow removal element in order to decrease an amount of time required to acquire a sample of the formation fluid having an acceptable amount of contamination.

摘要翻译： 公开了一种用于从具有钻井液的井眼穿透的地层中提取地层流体的地层测试工具。 该工具包括：样品流动元件，构造成在样品区域中从地层中提取地层流体; 形成限定所述样品区的周边的样品区密封件; 污染物去除流动元件，被配置为从地层中的污染物去除区域提取被钻井液污染的地层流体; 污染物去除区域密封件，其形成围绕并排除样品区域的污染物去除区域的周界; 以及控制器，被配置为控制样品流动元件中的样品流量和污染物去除元件中的污染物去除流速，以便减少获取具有可接受量污染物的地层流体样品所需的时间量 。