Cleanup Model Parameterization, Approximation, and Sensitivity
    32.
    发明申请
    Cleanup Model Parameterization, Approximation, and Sensitivity 审中-公开
    清理模型参数化,近似和灵敏度

    公开(公告)号:US20160216404A1

    公开(公告)日:2016-07-28

    申请号:US15005531

    申请日:2016-01-25

    CPC classification number: E21B49/10

    Abstract: Methods and systems for generating and utilizing a proxy model that generates a pumping parameter as a function of contamination. The pumping parameter is descriptive of a pumpout time or volume of fluid to be obtained from a formation by a downhole sampling tool positioned in a wellbore extending into the formation. The contamination is a percentage of the fluid obtained by the downhole sampling tool that is not native to the formation. The proxy model is based on a true model that utilizes true model input parameters that include the pumping parameter, formation parameters descriptive of the formation, and a filtrate parameter descriptive of a drilling fluid utilized to form the wellbore. The output of the true model is the contamination as a function of the pumping parameter. The proxy model utilizes proxy model input parameters each related to one or more of the true model input parameters.

    Abstract translation: 用于生成和利用生成作为污染函数的泵送参数的代理模型的方法和系统。 泵送参数描述了通过定位在延伸到地层中的井眼中的井下采样工具从地层获得的液体的抽出时间或体积。 污染物是由井下取样工具获得的不是地层天然的液体的百分比。 代理模型基于真实模型,其使用真实模型输入参数,其包括泵送参数,描述地层的形成参数以及描述用于形成井眼的钻井液的滤液参数。 真实模型的输出是作为泵送参数的函数的污染物。 代理模型使用代理模型输入参数,每个参数与一个或多个真实模型输入参数相关。

    Packer tool including multiple ports
    33.
    发明授权
    Packer tool including multiple ports 有权
    封隔器工具包括多个端口

    公开(公告)号:US09347299B2

    公开(公告)日:2016-05-24

    申请号:US14136935

    申请日:2013-12-20

    CPC classification number: E21B43/12 E21B33/1243 E21B47/06

    Abstract: A tool to be used within a wellbore including a wall, the wellbore extending through a formation including formation fluid, includes a first packer and a second packer. The first packer includes a packer port to enable formation fluid flow through the first packer, with the second packer spaced from the first packer. The first packer and the second packer are expandable to abut the wellbore wall to form an interval within the wellbore between the first packer and the second packer, in which the tool further includes an interval port in fluid communication with the interval.

    Abstract translation: 在井眼内使用的工具,包括壁,穿过包括地层流体的地层的井筒,包括第一封隔器和第二封隔器。 第一封隔器包括封隔器端口,以使得地层流体能够流过第一封隔器,第二封隔器与第一封隔器隔开。 第一封隔器和第二封隔器可扩张以邻接井眼壁,以在第一封隔器和第二封隔器之间的井筒内形成间隔,其中该工具还包括与该区间流体连通的间隔端口。

    System And Method For Controlled Pumping In A Downhole Sampling Tool
    34.
    发明申请
    System And Method For Controlled Pumping In A Downhole Sampling Tool 有权
    井下采样工具中控制抽水的系统和方法

    公开(公告)号:US20150361791A1

    公开(公告)日:2015-12-17

    申请号:US14301963

    申请日:2014-06-11

    CPC classification number: E21B49/008 E21B49/00 E21B49/08

    Abstract: A downhole tool designed to be disposed in a borehole of a subterranean formation is provided. The downhole tool includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. The downhole tool also includes a sample flowline fluidly coupled to the probe and used to direct fluid through the downhole tool. The downhole tool further includes at least two volume chambers. These volume chambers each include a first side fluidly coupled to the sample flowline, a second side fluidly coupled to the guard flowline, and a piston separating the first side from the second side. The downhole tool is able to control a flow of fluid from a high pressure environment to a low pressure environment via the at least two volume chambers, the sample flowline, and the guard flowline.

    Abstract translation: 提供了设计成设置在地层钻孔中的井下工具。 井下工具包括用于与地下地层接触的探针,以便将流体从或从地下地层中注入流体。 井下工具还包括流体耦合到探针并用于引导流体通过井下工具的样品流线。 所述井下工具还包括至少两个容积室。 这些容积室各自包括流体耦合到样品流线的第一侧,流体连接到防护流线的第二侧和将第一侧与第二侧分开的活塞。 井下工具能够经由至少两个体积室,样品流线和防护流线控制流体从高压环境到低压环境的流动。

    Method for Characterization of Hydrocarbon Reservoirs
    36.
    发明申请
    Method for Characterization of Hydrocarbon Reservoirs 审中-公开
    油气藏特征分析方法

    公开(公告)号:US20150006084A1

    公开(公告)日:2015-01-01

    申请号:US14373019

    申请日:2013-01-17

    Abstract: A methodology that performs fluid sampling within a wellbore traversing a reservoir and fluid analysis on the fluid sample(s) to determine properties (including asphaltene concentration) of the fluid sample(s). At least one model is used to predict asphaltene concentration as a function of location in the reservoir. The predicted asphaltene concentrations are compared with corresponding concentrations measured by the fluid analysis to identify if the asphaltene of the fluid sample(s) corresponds to a particular asphaltene type (e.g., asphaltene clusters common in heavy oil). If so, a viscosity model is used to derive viscosity of the reservoir fluids as a function of location in the reservoir. The viscosity model allows for gradients in the viscosity of the reservoir fluids as a function of depth. The results of the viscosity model (and/or parts thereof) can be used in reservoir understanding workflows and in reservoir simulation.

    Abstract translation: 在穿过储层的井筒内进行流体取样并在流体样品上进行流体分析以确定流体样品的性质(包括沥青质浓度)的方法。 使用至少一个模型来预测沥青质浓度作为储层中位置的函数。 将预测的沥青质浓度与通过流体分析测量的相应浓度进行比较,以确定流体样品的沥青质是否对应于特定的沥青质类型(例如重油中常见的沥青质簇)。 如果是这样,使用粘度模型来导出储层流体的粘度作为储层中的位置的函数。 粘度模型允许储层流体的粘度梯度作为深度的函数。 粘度模型(和/或其部分)的结果可用于油藏理解工作流程和油藏模拟。

    SYSTEM AND METHOD FOR CONTROLLED PUMPING IN A DOWNHOLE SAMPLING TOOL

    公开(公告)号:US20200248549A1

    公开(公告)日:2020-08-06

    申请号:US16852905

    申请日:2020-04-20

    Abstract: A downhole tool designed to be disposed in a borehole of a subterranean formation is provided. The downhole tool includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. The downhole tool also includes a sample flowline fluidly coupled to the probe and used to direct fluid through the downhole tool. The downhole tool further includes at least two volume chambers. These volume chambers each include a first side fluidly coupled to the sample flowline, a second side fluidly coupled to the guard flowline, and a piston separating the first side from the second side. The downhole tool is able to control a flow of fluid from a high pressure environment to a low pressure environment via the at least two volume chambers, the sample flowline, and the guard flowline.

    System and method for controlled pumping in a downhole sampling tool

    公开(公告)号:US09845673B2

    公开(公告)日:2017-12-19

    申请号:US14301963

    申请日:2014-06-11

    CPC classification number: E21B49/008 E21B49/00 E21B49/08

    Abstract: A downhole tool designed to be disposed in a borehole of a subterranean formation is provided. The downhole tool includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. The downhole tool also includes a sample flowline fluidly coupled to the probe and used to direct fluid through the downhole tool. The downhole tool further includes at least two volume chambers. These volume chambers each include a first side fluidly coupled to the sample flowline, a second side fluidly coupled to the guard flowline, and a piston separating the first side from the second side. The downhole tool is able to control a flow of fluid from a high pressure environment to a low pressure environment via the at least two volume chambers, the sample flowline, and the guard flowline.

Patent Agency Ranking