VOLUME, SIZE, AND SHAPE ANALYSIS OF DOWNHOLE PARTICLES

    公开(公告)号:WO2019152950A1

    公开(公告)日:2019-08-08

    申请号:PCT/US2019/016548

    申请日:2019-02-04

    Abstract: An imaging device (124), laser(s) (190, 192), lag calculation, and/or volume calculations are used to determine cuttings volume per unit depth. A projected or theoretical volume can be calculated based on parameters of the borehole being drilled. At the surface of the borehole, cuttings can be captured in a shaker screen (108). The volume of the cuttings can then be directly measured on the shaker screen. Deviations from a projected volume can be logged and notifications can be communicated on and/or offsite of the borehole. Additionally, size and shape of cuttings can be logged. Deviations from projected size and shape can also be logged. Various hydrocarbon recover}' operations can be altered based on results of the cuttings analysis and other indicators of improper hole cleaning. For instance, the drilling can be stopped, or a direction of the borehole can be altered.

    METHODS FOR DETERMINING GAS EXTRACTION EFFICIENCY FROM A DRILLING FLUID
    2.
    发明申请
    METHODS FOR DETERMINING GAS EXTRACTION EFFICIENCY FROM A DRILLING FLUID 审中-公开
    从钻井液中测定气体提取效率的方法

    公开(公告)号:WO2017003419A1

    公开(公告)日:2017-01-05

    申请号:PCT/US2015/038253

    申请日:2015-06-29

    CPC classification number: E21B49/088 E21B21/067 E21B49/086

    Abstract: It can sometimes be difficult to determine accurately the in-process degassing efficiency of a drilling fluid, thereby leading to inaccurate feedback from an ongoing drilling operation. Methods for determining degassing efficiency of a drilling fluid can comprise: combining a measured amount of an analysis gas with a drilling fluid sample; transferring the drilling fluid sample and the analysis gas to a degassing unit; withdrawing at least a portion of the analysis gas from the drilling fluid sample in the degassing unit; conveying the withdrawn analysis gas from the degassing unit to a detector with an inert carrier gas; determining an amount of the withdrawn analysis gas with the detector; and calculating an extraction efficiency of the analysis gas from the drilling fluid sample based upon the amount of the withdrawn analysis gas. The extraction efficiency may provide an estimate of the degassing extent for other gases.

    Abstract translation: 有时难以准确地确定钻井液的在线脱气效率,从而导致来自正在进行的钻井操作的不准确的反馈。 用于确定钻井液的脱气效率的方法可以包括:将测量量的分析气体与钻井液样品结合; 将钻井液样品和分析气体转移到脱气单元; 从脱气单元中的钻井液样品中抽出至少一部分分析气体; 将排出的分析气体从脱气单元输送到具有惰性载气的检测器; 用检测器确定抽出的分析气体的量; 并且基于所提取的分析气体的量来计算来自钻井液样品的分析气体的提取效率。 提取效率可以提供其他气体的脱气程度的估计。

    SYSTEM FOR TRACKING AND SAMPLING WELLBORE CUTTINGS USING RFID TAGS
    3.
    发明申请
    SYSTEM FOR TRACKING AND SAMPLING WELLBORE CUTTINGS USING RFID TAGS 审中-公开
    使用RFID标签跟踪和采样井筒切割的系统

    公开(公告)号:WO2015030755A1

    公开(公告)日:2015-03-05

    申请号:PCT/US2013/057117

    申请日:2013-08-28

    Abstract: A system and process for determining system operational characteristics of a drill string or completed well includes one or more detectors positioned along a fluid flow path in a wellbore. The detectors are operable to detect the presence of one or more transmitters circulated within the fluid flow path and to receive and record data based on detecting the transmitters. The system determines an operational characteristic, such as cutting sample identification information, flow rate, pump efficiency, lag, the presence of a washout, losses, or an equipment malfunction based on the data received and recorded by the detectors.

    Abstract translation: 用于确定钻柱或完井的系统操作特性的系统和过程包括沿着井眼中的流体流动路径定位的一个或多个检测器。 检测器可操作以检测在流体流动路径内循环的一个或多个发射器的存在并且基于检测发射器来接收和记录数据。 该系统基于由检测器接收和记录的数据确定操作特性,例如切割样品识别信息,流量,泵效率,滞后,存在冲洗,损失或设备故障。

    CORRECTION FOR CUTTINGS LAG
    4.
    发明申请

    公开(公告)号:WO2023080898A1

    公开(公告)日:2023-05-11

    申请号:PCT/US2021/058229

    申请日:2021-11-05

    Abstract: Systems and methods are described for determining the lag time and origin of particles in entrained in a mud stream. A size and shape of the particles may be evaluated at the surface with a visual inspection system, which permits a settling rate to be determined for each of the particles in a non-Newtonian mud stream. Together with an analysis of the pumping schedule, mud properties, trajectory of the wellbore and other fluid dynamics associated with a wellbore operation, an origin of the each of the particles from within the wellbore may be determined. At least one operational parameter for the wellbore operation may be adjusted based on the determined origin of the particles. For example, a clean-out procedure may be initiated if it is determined that particles are settling in an undesirable location in the wellbore.

    PLASMA OPTIMIZATION WITH FORMATIONAL AND FLUID INFORMATION

    公开(公告)号:WO2022046178A1

    公开(公告)日:2022-03-03

    申请号:PCT/US2021/026457

    申请日:2021-04-08

    Abstract: A method for drilling may comprise disposing a bottom hole assembly into a first wellbore. The bottom hole assembly may include a pulse power drilling assembly having one or more electrodes disposed on a drill bit and a pulse-generating circuit. The method may further include activating the one or more electrodes by applying an amperage, a voltage, and a cycle rate to the one or more electrodes to form an arc and a spark, adjusting the arc and the spark based at least in part on a hydrodynamic energy balance and a thermal energy balance, identifying one or more chemical reaction products created from an interaction of the arc and the spark with a formation, and adjusting the amperage, the voltage, and the cycle rate based on the chemical reaction products and storing the adjusted amperage, voltage, and cycle rate.

    PROSPECTIVE KICK LOSS DETECTION FOR OFF-SHORE DRILLING

    公开(公告)号:WO2021118565A1

    公开(公告)日:2021-06-17

    申请号:PCT/US2019/065884

    申请日:2019-12-12

    Abstract: Certain aspects and features relate to a system that monitors for kick and lost circulation in the riser string of an offshore drilling rig. The system compensates for annulus outflow fluctuation induced by wave (heave) motion in order to reduce false alarms, resulting in fewer drilling operation disruptions. The system includes a sensor or sensors disposable with respect to a drilling rig subject to rig motion. A processor receives a real-time position signal indicative of the rig motion from the sensor and applies a state observer to the position signal to determine annular flow parameters. The system models an annular flow for the wellbore to produce a modeled flow signal that reflects a position of the drilling rig relative to influx flow. The system uses the modeled flow to determine kick-loss-alarm parameters that take into account the heave motion.

    CLASSIFYING PARTICLE SIZE AND SHAPE DISTRIBUTION IN DRILLING FLUIDS
    8.
    发明申请
    CLASSIFYING PARTICLE SIZE AND SHAPE DISTRIBUTION IN DRILLING FLUIDS 审中-公开
    分级颗粒尺寸和形状分布在钻井液中

    公开(公告)号:WO2016133549A1

    公开(公告)日:2016-08-25

    申请号:PCT/US2015/020165

    申请日:2015-03-12

    Abstract: A method includes receiving an image of drill cuttings with a data acquisition system that includes one or more processors, the drill cuttings originating from a wellbore being drilled and including a plurality of particles. The image of the drill cuttings is analyzed with the one or more processors by obtaining three two-dimensional distance measurements for each particle and obtaining four angular measurements for each particle. The one or more processors then determine at least one of a particle size distribution of the drill cuttings and a shape distribution of the drill cuttings based on the three two-dimensional distance measurements and the four angular measurements of each particle.

    Abstract translation: 一种方法包括使用包括一个或多个处理器的数据采集系统接收钻屑的图像,所述钻屑源自正在钻孔的井筒并且包括多个颗粒。 通过为每个粒子获得三个二维距离测量值并为每个粒子获得四个角度测量值,用一个或多个处理器分析钻屑的图像。 然后,一个或多个处理器基于三个二维距离测量和每个粒子的四个角度测量来确定钻屑的粒度分布和钻屑的形状分布中的至少一个。

    GAS DETECTION INTEGRATION INTO A GAS EXTRACTOR

    公开(公告)号:WO2023277913A1

    公开(公告)日:2023-01-05

    申请号:PCT/US2021/039949

    申请日:2021-06-30

    Abstract: The present disclosure generally relates to a standalone gas extraction and detection system comprising a gas extraction chamber operable to receive a wellbore fluid and a carrier gas; a gas detection chamber in fluid communication with the gas extraction chamber, the gas detection chamber comprising reflective surfaces operable to receive infrared radiation (IR) and an extracted gas sample from the gas extraction chamber; an open-path detector operable to detect the IR in the gas detection chamber; and a shaft extending through the gas extraction chamber and the gas detection chamber of the standalone gas extraction and detection system.

    ESTIMATING FORMATION ISOTOPIC CONCENTRATION WITH PULSED POWER DRILLING

    公开(公告)号:WO2022047442A1

    公开(公告)日:2022-03-03

    申请号:PCT/US2021/070776

    申请日:2021-06-25

    Abstract: Various apparatus or methods are arranged to determine a first isotope ratio of an effluent drilling fluid, wherein the effluent drilling fluid is a drilling fluid after the drilling fluid has interacted with a plasma discharge produced via one or more electrodes of a drill bit of a pulsed power drill string disposed in a borehole. A second isotope ratio is estimated based on the first isotope ratio and a downhole reaction generated by the plasma discharge.

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