Methods and Apparatus for Characterization of Petroleum Fluids Contaminated with Drilling Mud
    64.
    发明申请
    Methods and Apparatus for Characterization of Petroleum Fluids Contaminated with Drilling Mud 有权
    用钻井泥浆污染的石油流体的表征方法和装置

    公开(公告)号:US20110088949A1

    公开(公告)日:2011-04-21

    申请号:US12990980

    申请日:2009-05-06

    IPC分类号: E21B21/08 G01V9/00 G06F19/00

    CPC分类号: E21B49/10 E21B49/08

    摘要: A method and system for characterizing formation fluids contaminated with drilling mud that compensates for the presence of such drilling mud. The operations that characterize formation fluids contaminated with drilling mud can be carried out in real-time. The operations also characterize a wide array of fluid properties of petroleum samples contaminated with drilling mud in a manner that compensates for the presence of drilling mud. The operations characterize the viscosity and density of petroleum samples contaminated with drilling mud at formation conditions in a manner that compensates for differences between formation conditions and flowline measurement conditions. The operations also derive live fluid density unaffected by contamination of mud filtrate based on a scaling coefficient dependent on measured gas-oil ratio of the formation fluid. This scale factor accounts for excess volume created during mixing processes, which increases the accuracy of characterizations for high gas-oil ratio samples, especially gas condensate.

    摘要翻译: 用于表征钻井泥浆污染的地层流体的方法和系统,其补偿这种钻井泥浆的存在。 表征钻井泥土污染地层流体的作业可以实时进行。 这些操作还以补偿钻井泥浆的存在的方式表征了用钻井泥浆污染的石油样品的各种流体性质。 该操作表征了在形成条件下以钻井泥浆污染的石油样品的粘度和密度,以补偿地层条件和流线测量条件之间的差异。 这些操作还基于取决于地层流体的瓦斯 - 油比的测量系数,导出不受泥浆滤液污染影响的活体密度。 该比例因子考虑到在混合过程中产生的过剩体积,这增加了高瓦斯油比样品,特别是气体凝析油的表征的准确性。

    Apparatus and methods to analyze downhole fluids using ionized fluid samples
    66.
    发明授权
    Apparatus and methods to analyze downhole fluids using ionized fluid samples 有权
    使用离子流体样品分析井下流体的装置和方法

    公开(公告)号:US07733490B2

    公开(公告)日:2010-06-08

    申请号:US12246107

    申请日:2008-10-06

    IPC分类号: G01N21/00

    摘要: Apparatus and methods to analyze downhole fluids are described herein. A disclosed example method involves obtaining a sample of a downhole fluid, and depressurizing at least a portion of the sample. Additionally, a disclosed example method involves ionizing at least the portion of the sample, and analyzing the ionized portion of the sample to determine a parameter of the downhole fluid.

    摘要翻译: 本文描述了分析井下流体的装置和方法。 所公开的示例性方法包括获得井下流体的样品,并且将至少一部分样品减压。 此外,所公开的示例方法包括至少对样品的一部分进行电离,并分析样品的离子化部分以确定井下流体的参数。

    METHODS AND APPARATUS TO FORM A WELL
    67.
    发明申请
    METHODS AND APPARATUS TO FORM A WELL 有权
    方法和设备形成一个好的

    公开(公告)号:US20090288881A1

    公开(公告)日:2009-11-26

    申请号:US12125181

    申请日:2008-05-22

    IPC分类号: E21B7/04 E21B49/00

    CPC分类号: E21B7/04 E21B47/022

    摘要: Methods and apparatus to form a well are disclosed. An example method involves determining a reservoir fluid map associated with at least a portion of a reservoir. The first fluid map has first fluid composition data associated therewith. The example method also involves measuring a formation fluid and determining a second fluid composition data based on the measurement. The second fluid composition data is compared with the first fluid composition data associated with the reservoir fluid map, and a well trajectory is adjusted based on the comparison.

    摘要翻译: 公开了形成井的方法和装置。 示例性方法包括确定与储存器的至少一部分相关联的储存器流体图。 第一流体图具有与其相关联的第一流体组成数据。 该示例性方法还涉及测量地层流体并且基于测量确定第二流体组成数据。 将第二流体组成数据与与储层流体图相关联的第一流体组成数据进行比较,并且基于该比较来调整井轨迹。

    Method and apparatus for in-situ side-wall core sample analysis
    69.
    发明授权
    Method and apparatus for in-situ side-wall core sample analysis 有权
    用于原位侧壁核心样品分析的方法和装置

    公开(公告)号:US07500388B2

    公开(公告)日:2009-03-10

    申请号:US11304296

    申请日:2005-12-15

    IPC分类号: E21B49/00

    CPC分类号: E21B49/06

    摘要: A wireline-conveyed side-wall core coring tool for acquiring side-wall core from a geological formation for performing in-situ side-wall core analysis. The coring tool has a core analysis unit operable to measure geophysical properties of an acquired side-wall core. The measured geophysical properties may be used to determine the success of the acquisition of side-wall cores by the coring tool. The core analysis unit is operable of performing an in-situ interpretation of measured geophysical property of the side-wall core and transmitting in near real-time the measurements or the interpretation results to surface data acquisition and processing apparatus.

    摘要翻译: 一种有线输送的侧壁芯取芯工具,用于从地质层获取侧壁芯,用于进行原位侧壁芯分析。 取芯工具具有可用于测量获得的侧壁芯的地球物理性质的核心分析单元。 测量的地球物理性质可用于确定取芯工具对侧壁岩芯的获取成功。 核心分析单元可操作地对侧壁核心的测量的地球物理特性进行现场解释,并将测量或解释结果近似实时传输到地面数据采集和处理设备。

    Methods and apparatus for optically measuring fluid compressibility downhole
    70.
    发明授权
    Methods and apparatus for optically measuring fluid compressibility downhole 有权
    光学测量井下流体压缩性的方法和装置

    公开(公告)号:US06474152B1

    公开(公告)日:2002-11-05

    申请号:US09704630

    申请日:2000-11-02

    IPC分类号: E21B4700

    摘要: The compressibility of a formation hydrocarbon sample is determined downhole by using a borehole tool to obtain the sample downhole, and, at two different pressures, subjecting the sample to near infrared illumination and conducting spectral absorption measurement of peaks at and/or around about 6,000 cm−1 and/or at and/or about 5,800 cm−1 (the absorption peaks of methane and crude oil respectively). The compressibility of the sample is determined from the change in the peak areas, the change in pressure, and the measured peak area itself. According to a preferred embodiment of the invention, the pressure is changed at least 2000 pounds per square inch (psi), and preferably 4000 or more psi between measurements.

    摘要翻译: 通过使用钻孔工具在井下获得地层烃样品的压缩性,在井下获得样品,并且在两个不同的压力下,对样品进行近红外照明并进行和/或约约6000cm处的峰的光谱吸收测量 -1和/或在和/或约5,800cm -1(分别为甲烷和原油的吸收峰)。 样品的压缩性由峰面积的变化,压力的变化和测量的峰面积本身确定。 根据本发明的优选实施例,在测量之间,压力改变为至少2000磅/平方英寸(psi),并且优选地改变为4000或更大的psi。