SYSTEM AND METHOD FOR ESTIMATING FORMATION CHARACTERISTICS IN A WELL
    1.
    发明申请
    SYSTEM AND METHOD FOR ESTIMATING FORMATION CHARACTERISTICS IN A WELL 审中-公开
    用于估计形成特征的系统和方法

    公开(公告)号:WO2009015252A8

    公开(公告)日:2016-12-15

    申请号:PCT/US2008070959

    申请日:2008-07-24

    发明人: MINH CHANH CAO

    IPC分类号: G01V3/32

    摘要: A technique utilizes the acquisition of data via nuclear magnetic resonance at multiple depths of investigation in a well region. The acquired data is processed to estimate variable fluid mixture densities at different radial depths. The variable fluid mixture densities and a radial response from a density tool, for example, can be used to calculate an effective fluid mixture density and used to interpret density logs. Other logs such as neutron log, induction resistivity log, and dielectric permittivity log can be combined with NMR. For these tools a corresponding effective formation property can be calculated and used to determine other formation characteristics, such as total porosity, total density, dielectric permittivity, electric resistivity, and formation characteristics derivable from these.

    摘要翻译: 一种技术利用在井区域的多个调查深度通过核磁共振获取数据。 处理所获取的数据以估计不同径向深度处的可变流体混合物密度。 例如,可以使用来自密度工具的可变流体混合物密度和径向响应来计算有效的流体混合物密度并用于解释密度测井。 其他原子如中子对数,感应电阻率对数和介电常数对数可与NMR结合。 对于这些工具,可以计算相应的有效形成性质并用于确定其它形成特征,例如总孔隙率,总密度,介电常数,电阻率和可从其得到的形成特征。

    ANALYZING RESERVOIR USING FLUID ANALYSIS
    4.
    发明申请
    ANALYZING RESERVOIR USING FLUID ANALYSIS 审中-公开
    使用流体分析的分析储层

    公开(公告)号:WO2016093842A1

    公开(公告)日:2016-06-16

    申请号:PCT/US2014/069794

    申请日:2014-12-11

    IPC分类号: G01V9/00 E21B49/00 E21B49/08

    摘要: Various implementations directed to analyzing a reservoir using fluid analysis are provided. In one implementation, a method may include determining mud gas logging (MGL) data based on drilling mud associated with a wellbore traversing a reservoir of interest. The method may also include determining first downhole fluid analysis (DFA) data based on a first reservoir fluid sample obtained at a first measurement station in the wellbore. The method may further include determining predicted DFA data for the wellbore based on the first DFA data. The method may additionally include determining second DFA data based on a second reservoir fluid sample obtained at a second measurement station in the wellbore. The method may further include analyzing the reservoir based on a comparison of the MGL data and a comparison of the second DFA data to the predicted DFA data.

    摘要翻译: 提供了用于使用流体分析来分析储层的各种实施方式。 在一个实施方案中,方法可以包括基于与穿过感兴趣的储层的井眼相关联的钻井泥浆来确定泥浆气体测井(MGL)数据。 该方法还可以包括基于在井筒中的第一测量站处获得的第一储层流体样品来确定第一井下流体分析(DFA)数据。 该方法还可以包括基于第一DFA数据确定井筒的预测DFA数据。 该方法可以另外包括基于在井筒中的第二测量站处获得的第二储层流体样品来确定第二DFA数据。 该方法还可以包括基于MGL数据的比较和第二DFA数据与预测的DFA数据的比较来分析储层。

    INVERSION TECHNIQUE FOR FRACTURE CHARACTERIZATION IN HIGHLY INCLINED WELLS USING MULTIAXIAL INDUCTION MEASUREMENTS
    6.
    发明申请
    INVERSION TECHNIQUE FOR FRACTURE CHARACTERIZATION IN HIGHLY INCLINED WELLS USING MULTIAXIAL INDUCTION MEASUREMENTS 审中-公开
    使用多轴感应测量法在高度集成的孔中进行断裂特征的反演技术

    公开(公告)号:WO2016069851A1

    公开(公告)日:2016-05-06

    申请号:PCT/US2015/057971

    申请日:2015-10-29

    发明人: WU, Peter

    IPC分类号: E21B47/00 G01V3/18 G01V3/38

    CPC分类号: G01V3/38 G01V3/28 G01V3/30

    摘要: A method uses multiaxial electromagnetic measurements corresponding to measurements made along two mutually orthogonal axes perpendicular to and parallel to an axis of a wellbore corresponding to at least one receiver spacing from a transmitter. An initial orientation of a fracture with respect to the axis of the wellbore and a distance from the fracture are calculated using the multiaxial electromagnetic measurements. An initial model of subsurface formations is made using the initial orientation, distance and formation resistivity adjacent the fracture. An expected response of an electromagnetic instrument to the initial model is generated. The expected response is compared to measurements made by the electromagnetic instrument and a parameter of the initial model is adjusted. The expected response is repeated and the model adjusted until a difference between the expected response and the measurements either (i) falls below a selected threshold or (ii) exceeds a predetermined number of repetitions.

    摘要翻译: 一种方法使用多轴电磁测量,其对应于垂直于和平行于与发射器的至少一个接收器间隔相对应的井筒的轴线的两个相互正交的轴线所做的测量。 使用多轴电磁测量计算相对于井筒轴线的断裂的初始定向和与断裂的距离。 使用邻近裂缝的初始取向,距离和地层电阻率来形成地下构造的初始模型。 产生电磁仪器对初始模型的预期响应。 将预期响应与电磁仪器进行的测量进行比较,并调整初始模型的参数。 重复预期响应,并且模型调整直到预期响应和测量之间的差异(i)低于所选阈值或(ii)超过预定重复次数。

    USE OF TRANSVERSE ANTENNA MEASUREMENTS FOR CASING AND PIPE DETECTION
    7.
    发明申请
    USE OF TRANSVERSE ANTENNA MEASUREMENTS FOR CASING AND PIPE DETECTION 审中-公开
    横向天线测量在套管和管道检测中的应用

    公开(公告)号:WO2016064793A1

    公开(公告)日:2016-04-28

    申请号:PCT/US2015/056328

    申请日:2015-10-20

    发明人: OMERAGIC, Dzevat

    IPC分类号: E21B47/00 G01V3/18 G01V3/26

    CPC分类号: G01V3/28 E21B47/022

    摘要: Disclosed herein is a method of determining a relation between a resistivity logging tool and casing in an earth formation. The method includes acquiring coupling voltages for different tool face angles, between different antenna components of different axes of a transmitting station transmitting into the earth formation and different antenna components of different axes of a receiving station receiving from the formation, using the resistivity logging tool. Then, spatial Fourier coefficients are extracted from the coupling voltages, using a computing device associated with the resistivity logging tool. The relation between the resistivity logging tool and the casing is then determined as a function of the spatial Fourier coefficients and at least one resistivity measurement of the earth formation, using the computing device.

    摘要翻译: 这里公开了一种确定电阻率测井工具与地层中的套管之间的关系的方法。 该方法包括使用电阻率测井工具来获取用于不同工具面角的耦合电压,在发射到地层中的发射站的不同轴的不同天线组件与从地层接收的接收站的不同轴的不同天线组件之间。 然后,使用与电阻率测井工具相关联的计算装置从耦合电压中提取空间傅立叶系数。 然后使用计算设备将电阻率测井工具和套管之间的关系确定为空间傅里叶系数和地层的至少一个电阻率测量的函数。

    SUBSEA TREE SAFETY CONTROL SYSTEM
    10.
    发明申请
    SUBSEA TREE SAFETY CONTROL SYSTEM 审中-公开
    SUBSEA树种安全控制系统

    公开(公告)号:WO2009146206A3

    公开(公告)日:2016-03-31

    申请号:PCT/US2009040945

    申请日:2009-04-17

    发明人: MATHIS DAVID J

    IPC分类号: E21B43/013

    摘要: An embodiment of a method for limiting the probability of failure on demand of a subsea test tree ("SSTT") includes the steps of providing a safety shut-in system for actuating a safety valve of the SSTT, the safety shut-in system including a surface control station positioned above a water surface connected via an umbilical to a subsea control system positioned below the water surface to actuate the safety valve; and diagnostically testing the safety shut-in system without actuating the safety valve.

    摘要翻译: 用于限制海底测试树(“SSTT”)需求故障概率的方法的实施例包括以下步骤:提供用于启动SSTT的安全阀的安全关闭系统,该安全关闭系统包括 位于水面以上的表面控制站,其经由脐带连接到位于水面下方的海底控制系统,以启动安全阀; 并在不启动安全阀的情况下诊断性地测试安全关闭系统。