公开(公告)号：US20070209793A1

公开(公告)日：2007-09-13

申请号：US11739536

申请日：2007-04-24

申请人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

发明人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

IPC分类号： E21B49/08

CPC分类号： E21B49/10

摘要： A method for acquiring a sample of a virgin fluid from a subsurface formation penetrated by a wellbore surrounded by a layer of contaminated fluid is disclosed. The method includes abutting a first packer against a wall of the wellbore, and extending at least a portion of a second packer beyond the first packer, wherein the second packer is at least partially disposed in the first packer. An inlet to a first flowline is at least partially defined by the first packer, and an inlet to a second flowline is defined by the second packer. The method further includes drawing one of virgin fluid, contaminated fluid and combinations thereof into the first flowline; and drawing virgin fluid into the second flowline.

摘要翻译： 公开了一种从受污染流体层围绕的井眼渗透的地下地层获取原始流体样品的方法。 该方法包括将第一封隔器抵靠井壁的壁，并将第二封隔器的至少一部分延伸超过第一封隔器，其中第二封隔器至少部分地布置在第一封隔器中。 第一流线的入口至少部分地由第一封隔器限定，并且第二流线的入口由第二封隔器限定。 该方法还包括将初始流体，污染流体及其组合中的一种引入第一流线中; 并将原始流体绘制到第二流线中。

公开(公告)号：US20060076132A1

公开(公告)日：2006-04-13

申请号：US10960403

申请日：2004-10-07

申请人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

发明人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

IPC分类号： E21B49/08

CPC分类号： E21B49/10

摘要： A probe assembly samples fluid from a wellbore penetrating a subsurface formation having a virgin fluid therein beyond a layer of contaminated fluid surrounding the wellbore. The probe assembly includes a probe body extendable from a downhole tool, and a packer carried by the probe body and having a distal surface adapted for sealingly engaging the wellbore. The packer has an outer and inner periphery, with the inner periphery being defined by a bore through the packer. The packer is further equipped with channel(s) formed in the distal surface and arranged to define an annular cleanup intake intermediate the inner and outer peripheries. The passageway(s) extend(s) through the packer for conducting virgin fluid and/or contaminated fluid between the channel(s). A sampling tube is sealingly disposed in the bore of the packer for conducting virgin fluid to a second inlet in the probe body and the downhole tool.

摘要翻译： 探针组件从穿透具有其中的初始流体的地下地层的井孔中流出来自围绕井眼的污染流体层的流体。 探针组件包括可从井下工具延伸的探针主体和由探针主体承载并且具有适于密封地接合井筒的远侧表面的封隔器。 封隔器具有外周和内周边，内周由穿过封隔器的孔限定。 封隔器还配备有形成在远侧表面中的通道，并且布置成限定在内外周边中间的环形净化进口。 通道延伸穿过封隔器，用于在通道之间进行原始流体和/或污染的流体。 采样管密封地设置在封隔器的孔中，用于将初始流体引导到探针主体和井下工具中的第二入口。

公开(公告)号：US20060042793A1

公开(公告)日：2006-03-02

申请号：US10711187

申请日：2004-08-31

申请人： Christopher Del Campo ,  Raymond Nold ,  Noriyuki Matsumoto ,  Mark Milkovisch ,  Hisayo Tauchi ,  Jonathan Brown ,  Ricardo Vasques ,  Kenneth Havlinek

发明人： Christopher Del Campo ,  Raymond Nold ,  Noriyuki Matsumoto ,  Mark Milkovisch ,  Hisayo Tauchi ,  Jonathan Brown ,  Ricardo Vasques ,  Kenneth Havlinek

IPC分类号： E21B29/00

CPC分类号： E21B49/10

摘要： 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.

摘要翻译： 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。