中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

3780 records (took 0.056 seconds)

    CONTROL OF MANAGED PRESSURE DRILLING
    192.
    发明申请
    CONTROL OF MANAGED PRESSURE DRILLING 审中-公开
    管理压力钻井控制

    公开(公告)号：WO2014087370A1

    公开(公告)日：2014-06-12

    申请号：PCT/IB2013/060672

    申请日：2013-12-05

    Applicant: SCHLUMBERGER TECHNOLOGY B.V. ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： HAVRE, Kjetil ,  JOHNSON, Ashley Bernard ,  RINGER, Maurice ,  ALDRED, Walter David

    IPC: E21B21/08 ,  E21B4/06

    CPC classification number: E21B21/08 ,  E21B21/062 ,  E21B21/16 ,  E21B43/122 ,  E21B2021/005 ,  E21B2021/006 ,  G05B11/42

    Abstract: Method for controlling bottomhole pressure in a borehole during managed pressure drilling. In the drilling procedure fluid is circulated down a drillstring and and to surface through an annulus between the drillstring and an inner-wall of the borehole. A compressor/pump is used to inject gas into the returning drilling fluid at a gas injection point. The method comprises receiving a target bottomhole pressure;determining actual bottomhole pressure during the procedure;and adjusting a variable as directed by a feedback controller,which operates to reduce the difference between the target pressure and the measured pressure. The manipulated variable may be one or any combination of: (1)pressure of drilling fluid at the entry of the fluid into the drillstring, (2) the flow rate of drilling fluid out of the drillstring into the annulus, (3)pressure of the gas exiting from the compressor, and (4) the injection rate of the gas.

    Abstract translation: 在管理压力钻井期间控制井眼井底压力的方法。 在钻井过程中，流体沿着钻柱循环并且穿过钻柱和钻孔的内壁之间的环形区域循环。 压缩机/泵用于在气体注入点将气体注入回流钻井液中。 该方法包括接收目标井底压力;在过程期间确定实际井底压力;以及如反馈控制器所指示的那样调整变量，该反馈控制器用于减小目标压力和所测量的压力之间的差异。 操纵变量可以是以下一种或任意组合：（1）钻井液在进入钻柱时的压力，（2）钻井液从钻柱进入环空的流量，（3）压力 从压缩机排出的气体，和（4）气体的喷射速率。

    METHODS FOR IN-SITU BOREHOLE SEISMIC SURVEYS USING DOWNHOLE SOURCES
    195.
    发明申请
    METHODS FOR IN-SITU BOREHOLE SEISMIC SURVEYS USING DOWNHOLE SOURCES 审中-公开
    使用卧室源的井下地震测量方法

    公开(公告)号：WO2014066441A1

    公开(公告)日：2014-05-01

    申请号：PCT/US2013/066259

    申请日：2013-10-23

    Applicant: SCHLUMBERGER TECHNOLOGY B.V. ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER CANADA LIMITED ,  SCHLUMBERGER HOLDINGS LIMITED ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： LE CALVEZ, Joel Herve ,  TAYLOR, Stewart Thomas

    IPC: G01V1/40 ,  G01V1/28

    CPC classification number: G01V1/44

    Abstract: Methods for in-situ reservoir investigation by borehole seismic methods are provided using receiver(s) and a downhole source. The downhole source may be a microseismic event, and may be located relative to the receiver(s) in any configuration. The downhole source may also be a controlled source that is positioned in a reverse vertical seismic profile (RVSP) geometry with respect to the receiver(s). The methods may involve locating the receiver(s) in a first well (which may have any orientation, including vertical or horizontal), and locating the source in a monitoring well (which may have any orientation, including vertical or horizontal), such that the source in the monitoring well is positioned at a greater depth in the formation than the receivers in the first well.

    Abstract translation: 通过井眼地震方法进行原位油藏勘探的方法是使用接收器和井下源提供的。 井下源可以是微震事件，并且可以以任何配置相对于接收器定位。 井下源还可以是相对于接收器位于相反垂直地震剖面（RVSP）几何形状的受控源。 所述方法可以包括将接收器定位在第一井（其可以具有任何取向，包括垂直或水平），以及将源定位在监测井中（其可以具有任何取向，包括垂直或水平），使得 监测井中的源位于地层中比第一井中的接收器更深的深度。

    SYSTEMS AND METHODS FOR COLLECTING ONE OR MORE MEASURMENTS AND/OR SAMPLES
    196.
    发明申请
    SYSTEMS AND METHODS FOR COLLECTING ONE OR MORE MEASURMENTS AND/OR SAMPLES 审中-公开
    用于收集一个或多个测量和/或样本的系统和方法

    公开(公告)号：WO2014066126A2

    公开(公告)日：2014-05-01

    申请号：PCT/US2013/065366

    申请日：2013-10-17

    Applicant: SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V. ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： SLAPAL, Miroslav ,  POP, Julian ,  PESSIN, Jean-Louis ,  YELDELL, Stephen ,  HERNANDEZ-MARTI, Ramon

    CPC classification number: G01V3/30 ,  E21B47/122 ,  E21B49/088 ,  E21B49/10

    Abstract: A system and method collects one or more measurements within a borehole formed in a subsurface reservoir. The system and method provides a first downhole component having an expandable element and a first port formed in a layer of the expandable element. A wireless transceiver is connected to the first downhole component, wherein the wireless transceiver is adapted to transmit one or more wireless signals within the borehole. A first wireless sensor located at the first port and remotely with respect to the wireless transceiver, wherein the first wireless sensor is configure to receive the one or more wireless signals and collect at least one measurement within the borehole or perform at least one task related to the borehole or subsurface reservoir about the borehole.

    Abstract translation: 系统和方法收集在地下储层中形成的钻孔内的一个或多个测量结果。 该系统和方法提供了具有可膨胀元件和形成在可膨胀元件的层中的第一端口的第一井下部件。 无线收发器连接到第一井下部件，其中无线收发器适于在钻孔内传输一个或多个无线信号。 第一无线传感器，位于所述第一端口并且相对于所述无线收发器远程，其中，所述第一无线传感器被配置为接收所述一个或多个无线信号并且收集所述钻孔内的至少一个测量或执行与以下相关的至少一个任务： 钻孔周围的井眼或地下储层。

    ALPHA PROCESSING TO IMPROVE ACCURACY AND PRECISION OF ELEMENTAL CONCENTRATIONS FROM GAMMA-RAY SPECTROSCOPY
    198.
    发明申请
    ALPHA PROCESSING TO IMPROVE ACCURACY AND PRECISION OF ELEMENTAL CONCENTRATIONS FROM GAMMA-RAY SPECTROSCOPY 审中-公开
    ALPHA处理提高从伽马射线光谱的元素浓度的精度和精度

    公开(公告)号：WO2014059267A1

    公开(公告)日：2014-04-17

    申请号：PCT/US2013/064527

    申请日：2013-10-11

    Applicant: SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V. ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： STOLLER, Christian ,  GRAU, James A. ,  BERHEIDE, Markus

    IPC: G01V5/00

    CPC classification number: G01V5/08 ,  E21B49/00 ,  G01N33/24

    Abstract: A method for improving precision of measurement of material composition of formations determined by gamma ray spectral an analysis includes determining an accurate value of an amount of a selected by analyzing a spectrum of gamma rays detected from the formations using a technique that directly relates the gamma ray spectrum to the amount of the material. A precise value of the amount of the material is determined by analyzing the spectrum of detected gamma rays that indirectly relates the gamma ray spectrum to the amount of the material. A function relating the accurate value to the precise value over a selected axial interval along the wellbore is determined. The function is applied to the accurate value at at least one selected axial position along the wellbore to determine an accurate and precise value of the amount of the material.

    Abstract translation: 用于提高由伽马射线光谱确定的地层的材料组成的测量精度的方法包括通过使用直接关联伽马射线的技术来分析从地层中检测到的伽马射线的频谱来确定所选择的量的精确值 光谱到材料的量。 通过分析间接地将伽马射线谱与材料的量相关联的检测到的伽马射线的光谱来确定材料量的精确值。 确定沿着井眼将精确值与选定的轴向间隔上的精确值相关联的函数。 该功能应用于沿着井筒的至少一个选定的轴向位置处的精确值，以确定材料量的准确和精确的值。

    NULL SPACE PROJECTION FOR SOURCELESS GAIN STABILIZATION IN DOWNHOLE GAMMA RAY SPECTROSCOPY
    199.
    发明申请
    NULL SPACE PROJECTION FOR SOURCELESS GAIN STABILIZATION IN DOWNHOLE GAMMA RAY SPECTROSCOPY 审中-公开
    空间投影在空间伽马射线光谱中的无源增益稳定

    公开(公告)号：WO2014055852A1

    公开(公告)日：2014-04-10

    申请号：PCT/US2013/063439

    申请日：2013-10-04

    Applicant: SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V. ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： SLOAN, William Robert

    IPC: G01V5/04

    CPC classification number: G01T7/005

    Abstract: A method for gain control of a radiation detector includes measuring standard gamma ray spectra for known concentrations of selected radioactive materials found in earth formations. A standards matrix is calculated from the standard gamma ray spectra. A singular value decomposition is computed from a matrix related to measurements of gamma ray spectra of formations and the standards matrix. A radiation detector gain is computed from a minimum ratio of null space with respect to data value space of a subsurface formation measurement related matrix and the standards matrix. Gain of the radiation detector is adjusted based on the computed radiation detector gain.

    Abstract translation: 用于放射线检测器的增益控制的方法包括测量在地层中发现的已知浓度的选定放射性物质的标准伽马射线谱。 从标准伽马射线谱计算标准矩阵。 从与地层和标准矩阵的伽马射线光谱的测量相关的矩阵计算奇异值分解。 相对于地下地层测量相关矩阵和标准矩阵的数据值空间的零空间的最小比率计算辐射探测器增益。 基于计算出的辐射检测器增益来调整辐射探测器的增益。

Patent Agency Ranking