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    • 10. 发明申请
    • APPARATUS AND METHOD FOR FORMATION EVALUATION
    • 装置和形成评估方法
    • US20060042793A1
    • 2006-03-02
    • US10711187
    • 2004-08-31
    • Christopher Del CampoRaymond NoldNoriyuki MatsumotoMark MilkovischHisayo TauchiJonathan BrownRicardo VasquesKenneth Havlinek
    • Christopher Del CampoRaymond NoldNoriyuki MatsumotoMark MilkovischHisayo TauchiJonathan BrownRicardo VasquesKenneth Havlinek
    • E21B29/00
    • E21B49/10
    • Techniques for reduced contamination formation evaluation are provided. The techniques relate to drawing fluid into a downhole tool positionable in a wellbore penetrating a subterranean formation having a virgin fluid and a contaminated fluid therein. Fluid is drawn into at least two inlets for receiving the fluids from the formation. At least one evaluation flowline is fluidly connected to at least one of the inlets for passage of the virgin fluid into the downhole tool. At least one cleanup flowline is fluidly connected to the inlets for passage of the contaminated fluid into the downhole tool. At least one fluid circuit is fluidly connected to the evaluation flowline and/or cleanup flowlines for selectively drawing fluid therein. At least one fluid connector is provided for selectively establishing a fluid connection between the flowlines. At least one sensor is provided for measuring downhole parameters in one of the flowlines. Fluid may be selectively pumped through the flowlines to reduce the contamination in the evaluation flowline.
    • 提供了减少污染物形成评估的技术。 这些技术涉及将流体引入井下工具中,井下工具可定位在渗透具有原始流体和其中的污染流体的地下地层的井眼中。 流体被吸入至少两个用于从地层接收流体的入口。 至少一个评估流线与至少一个入口流体连接,以将原始流体通入井下工具。 至少一个净化流线流体地连接到入口,以将污染的流体通入井下工具。 至少一个流体回路流体地连接到评估流线和/或清理流线,用于选择性地在其中抽取流体。 提供至少一个流体连接器用于选择性地在流线之间建立流体连接。 提供至少一个传感器用于测量其中一条流线中的井下参数。 流体可以选择性地泵送通过流线,以减少评估流线中的污染。