System And Method for Removing Noise From Measurement Data
    21.
    发明申请
    System And Method for Removing Noise From Measurement Data 审中-公开
    从测量数据中消除噪声的系统和方法

    公开(公告)号:US20140230538A1

    公开(公告)日:2014-08-21

    申请号:US14241860

    申请日:2012-09-03

    申请人: Peter S. Hegeman

    发明人: Peter S. Hegeman

    IPC分类号: E21B47/06 E21B47/00

    摘要: System and/or methods for removing noise from measurement data are disclosed. For example, pressure measurements may be used to identify a flow regime using the derivative of each of the pressure measurements. A time window may be defined about each pressure measurement and numerous or even all pressure measurements within the time window may be used to calculate the pressure derivative of each pressure measurement. A least-squares method or a least-absolute-deviations method may be used to compute a pressure-derivative curve. The iteratively-reweighted least-squares method may be used to solve least-absolute-deviation problems to compute a pressure-derivative curve with enhanced smoothing.

    摘要翻译: 公开了用于从测量数据中去除噪声的系统和/或方法。 例如,可以使用压力测量来使用每个压力测量的导数来识别流动状态。 可以针对每个压力测量定义时间窗口,并且可以使用时间窗口内的许多或甚至所有压力测量来计算每个压力测量的压力导数。 可以使用最小二乘法或最小绝对偏差法来计算压力 - 微分曲线。 迭代重新加权的最小二乘法可用于解决最小绝对偏差问题,以计算具有增强平滑的压力 - 导数曲线。

    Apparatus to sample heavy oil from a subterranean formation
    22.
    发明授权
    Apparatus to sample heavy oil from a subterranean formation 有权
    从地下地层中取样重质油的装置

    公开(公告)号:US08453732B2

    公开(公告)日:2013-06-04

    申请号:US12754334

    申请日:2010-04-05

    IPC分类号: E21B47/00 E21B49/08

    CPC分类号: E21B49/081 E21B43/24

    摘要: A method of sampling fluid from a subterranean formation includes positioning a first tool having a heater in a borehole so that the heater is adjacent a portion of the subterranean formation; heating with the heater the portion of the subterranean formation; removing the first tool from the borehole; orienting a second tool having a sampling probe in the borehole so that the sampling probe is to contact a portion of the subterranean formation heated by the heater; and obtaining via the sampling probe a fluid sample from the portion of the subterranean formation heated by the heater.

    摘要翻译: 从地下地层采样流体的方法包括将具有加热器的第一工具定位在钻孔中,使得加热器邻近地层的一部分; 用加热器加热地层的一部分; 从钻孔中移除第一个工具; 将具有采样探针的第二工具定向在钻孔中,使得采样探针接触由加热器加热的地下地层的一部分; 以及通过所述采样探针从所述加热器加热的所述地下部分的部分获得流体样品。

    METHODS AND APPARATUS TO DETERMINE PHASE-CHANGE PRESSURES
    23.
    发明申请
    METHODS AND APPARATUS TO DETERMINE PHASE-CHANGE PRESSURES 有权
    确定相变压力的方法和装置

    公开(公告)号:US20110093200A1

    公开(公告)日:2011-04-21

    申请号:US12582243

    申请日:2009-10-20

    IPC分类号: G01V5/04

    摘要: Example methods and apparatus to determine phase-change pressures are disclosed. A disclosed example method includes capturing a fluid in a chamber, pressurizing the fluid at a plurality of pressures, measuring a plurality of transmittances of a signal through the fluid at respective ones of the plurality of pressures, computing a first magnitude of a first subset of the plurality of transmittances, computing a second magnitude of a second subset of the plurality of transmittances, comparing the first and second magnitudes to determine a phase-change pressure for the fluid.

    摘要翻译: 公开了用于确定相变压力的示例性方法和装置。 所公开的示例性方法包括捕获腔室中的流体,在多个压力下对流体加压,在多个压力中的相应压力下测量通过流体的信号的多个透射率,计算第一子集的第一子集 所述多个透射率,计算所述多个透射率的第二子集的第二大小,比较所述第一和第二幅度以确定所述流体的相变压力。

    Obtaining and evaluating downhole samples with a coring tool
    24.
    发明授权
    Obtaining and evaluating downhole samples with a coring tool 有权
    使用取芯工具获取和评估井下样品

    公开(公告)号:US07748265B2

    公开(公告)日:2010-07-06

    申请号:US11852390

    申请日:2007-09-10

    IPC分类号: E21B49/00 E21B49/02

    摘要: Samples of hydrocarbon are obtained with a coring tool. An analysis of some thermal or electrical properties of the core samples may be performed downhole. The core samples may also be preserved in containers sealed and/or refrigerated prior to being brought uphole for analysis. The hydrocarbon trapped in the pore space of the core samples may be extracted from the core samples downhole. The extracted hydrocarbon may be preserved in chambers and/or analyzed downhole.

    摘要翻译: 用取芯工具获得碳氢化合物样品。 核心样品的一些热或电性质的分析可以在井下进行。 核心样品也可以保存在密封和/或冷藏的容器中,然后将其放入孔中进行分析。 被捕获在核心样品的孔隙中的烃可以从井下的核心样品中提取出来。 提取的烃可以在室内保存和/或在井下分析。

    Methods and Apparatus to Sample Heavy Oil from a Subteranean Formation
    25.
    发明申请
    Methods and Apparatus to Sample Heavy Oil from a Subteranean Formation 有权
    从亚体组合物中重油的方法和装置

    公开(公告)号:US20080296017A1

    公开(公告)日:2008-12-04

    申请号:US11755039

    申请日:2007-05-30

    CPC分类号: E21B49/081 E21B43/24

    摘要: A method of sampling fluid from a subterranean formation includes positioning a first tool having a heater in a borehole so that the heater is adjacent a portion of the subterranean formation: heating with the heater the portion of the subterranean formation; removing the first tool from the borehole; orienting a second tool having a sampling probe in the borehole so that the sampling probe is to contact a portion of the subterranean formation heater by the heater; and obtaining via the sampling probe a fluid sample from the portion of the subterranean formation heater by the heater.

    摘要翻译: 从地下地层采样流体的方法包括将具有加热器的第一工具定位在钻孔中,使得加热器邻近地下地层的一部分:用加热器加热地下地层的部分; 从钻孔中移除第一个工具; 将具有采样探针的第二工具定向在钻孔中,使得采样探针通过加热器接触地下地层加热器的一部分; 以及通过所述采样探针从所述地下加热器的所述部分通过所述加热器获得流体样品。

    Apparatus and Methods to Remove Impurities at a Sensor in a Downhole Tool
    26.
    发明申请
    Apparatus and Methods to Remove Impurities at a Sensor in a Downhole Tool 有权
    在井下工具中去除传感器杂质的装置和方法

    公开(公告)号:US20080093078A1

    公开(公告)日:2008-04-24

    申请号:US11757476

    申请日:2007-06-04

    IPC分类号: E21B21/00

    CPC分类号: E21B49/08 E21B37/00

    摘要: Apparatus and methods to remove impurities at a sensor in a downhole tool are disclosed. During the testing and/or sampling of formation fluid in a borehole, the downhole tool creates a transient high rate of fluid flow of the formation fluid to remove impurities at the sensor.

    摘要翻译: 公开了在井下工具中的传感器处去除杂质的装置和方法。 在钻孔中地层流体的测试和/或采样期间,井下工具产生地层流体的瞬时高速流体流动以去除传感器处的杂质。

    METHOD AND APPARATUS FOR SAMPLING FORMATION FLUIDS
    27.
    发明申请
    METHOD AND APPARATUS FOR SAMPLING FORMATION FLUIDS 失效
    用于采样形成流体的方法和装置

    公开(公告)号:US20080066536A1

    公开(公告)日:2008-03-20

    申请号:US11851584

    申请日:2007-09-07

    IPC分类号: E21B49/08

    CPC分类号: E21B49/10

    摘要: A method of retrieving a formation fluid from a formation adjacent a borehole wall includes estimating at least one of a permeability of the formation and a viscosity of the formation fluid. A first tool is selected based on the estimation, the first tool being selected from one of a heating and sampling tool, an injection and sampling tool, and a coring tool. An attempt to retrieve a formation fluid sample from the formation is then made with the first tool, and a formation fluid sample is retrieved from the formation. A second retrieval process may then be initiated, in which the second retrieval process includes increasing the mobility of the formation fluid.

    摘要翻译: 从邻近钻孔壁的地层中回收地层流体的方法包括估计地层的渗透性和地层流体的粘度中的至少一个。 基于估计选择第一工具,第一工具从加热和取样工具,注射和取样工具以及取芯工具中选择一个。 然后使用第一工具来从地层中取出地层流体样品,并从地层中取出地层流体样品。 然后可以启动第二检索过程,其中第二检索过程包括增加地层流体的流动性。

    Optical fluid analysis signal refinement
    28.
    发明授权
    Optical fluid analysis signal refinement 有权
    光学流体分析信号精细化

    公开(公告)号:US06992768B2

    公开(公告)日:2006-01-31

    申请号:US10249968

    申请日:2003-05-22

    IPC分类号: G01J3/46

    摘要: A method for refining fluid sample data includes obtaining optical density data for a fluid sample in at least two color channels and at least one fluid component channel and determining a color-absorption function from the optical density data for the fluid sample in the at least two color channels. The method also includes calculating a portion of the optical density caused by color absorptions in each of the at least one fluid component channels, and de-coloring the optical density data in each of the at least one fluid component channels by removing the portion of the optical density data caused by color absorption.

    摘要翻译: 用于精炼流体样本数据的方法包括:获得至少两个颜色通道中的流体样本的光密度数据和至少一个流体分量通道,并根据来自至少两个中的流体样本的光密度数据确定颜色吸收函数 颜色通道。 所述方法还包括计算由所述至少一个流体分量通道中的每一个中的颜色吸收引起的光密度的一部分,以及通过去除所述至少一个流体分量通道中的每一个的所述至少一个流体分量通道中的所述光密度数据 由颜色吸收引起的光密度数据。

    Obtaining and evaluating downhole samples with a coring tool
    29.
    发明授权
    Obtaining and evaluating downhole samples with a coring tool 有权
    使用取芯工具获取和评估井下样品

    公开(公告)号:US08621920B2

    公开(公告)日:2014-01-07

    申请号:US12782398

    申请日:2010-05-18

    IPC分类号: E21B49/00

    摘要: Samples of hydrocarbon are obtained with a coring tool. An analysis of some thermal or electrical properties of the core samples may be performed downhole. The core samples may also be preserved in containers sealed and/or refrigerated prior to being brought uphole for analysis. The hydrocarbon trapped in the pore space of the core samples may be extracted from the core samples downhole. The extracted hydrocarbon may be preserved in chambers and/or analyzed downhole.

    摘要翻译: 用取芯工具获得碳氢化合物样品。 核心样品的一些热或电性质的分析可以在井下进行。 核心样品也可以保存在密封和/或冷藏的容器中,然后将其放入孔中进行分析。 被捕获在核心样品的孔隙中的烃可以从井下的核心样品中提取出来。 提取的烃可以在室内保存和/或在井下分析。

    Thickness-independent computation of horizontal and vertical permeability
    30.
    发明授权
    Thickness-independent computation of horizontal and vertical permeability 有权
    水平和垂直渗透率的厚度独立计算

    公开(公告)号:US08473214B2

    公开(公告)日:2013-06-25

    申请号:US12758398

    申请日:2010-04-12

    CPC分类号: E21B49/008

    摘要: A method for determining permeability of a reservoir using a packer-probe formation testing tool. The elements of the method include generating, using a dual packer tool module, fluid flows from the reservoir into a wellbore, obtaining pressure data associated with the fluid flows using an observation probe tool module, wherein the packer-probe formation testing tool comprises the dual packer module and the observation probe tool module, identifying a portion of the pressure data corresponding to a spherical flow regime, determining horizontal permeability based on the portion of the pressure data, and displaying an output generated using the horizontal permeability.

    摘要翻译: 一种使用封隔器探针形成测试工具确定储层的渗透性的方法。 该方法的要素包括使用双封隔器工具模块来产生从贮存器进入井眼的流体流,使用观察探针工具模块获得与流体流动相关联的压力数据,其中封隔器探针形成测试工具包括双重封闭器 封隔器模块和观察探针工具模块,识别对应于球形流动状态的压力数据的一部分,基于压力数据的部分确定水平磁导率,以及显示使用水平磁导率产生的输出。