Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole
    2.
    发明授权
    Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole 有权
    用于从井眼确定地下地层的热中子捕获截面的方法和装置

    公开(公告)号:US07439494B2

    公开(公告)日:2008-10-21

    申请号:US11621474

    申请日:2007-01-09

    CPC classification number: G01V5/105 G01V5/102

    Abstract: Data acquired using a pulsed nuclear source are susceptible to two sources of error. One error is due to large statistical noise towards the end of an acquisition window. Another source of error is the contamination of the early portion of the data by borehole and other effects. The beginning of the processing window is adjusted based on the signal level at the end of the processing window for the preceding pulsing of the source. The end of the processing window is derived from statistical considerations.

    Abstract translation: 使用脉冲核源获得的数据容易受到两个误差源的影响。 一个错误是由于在采集窗口结束时的统计噪音较大。 另一个错误来源是数据的早期部分被钻孔和其他影响所污染。 基于处理窗口末端处的信号电平调整处理窗口的开始,以用于源的前一个脉冲。 处理窗口的结尾是从统计学的考虑得出的。

    Silicone defoamer to better control hydrocarbon foam and reduce silicon content of liquid hydrocarbon products
    3.
    发明授权
    Silicone defoamer to better control hydrocarbon foam and reduce silicon content of liquid hydrocarbon products 有权
    硅油消泡剂可以更好地控制碳氢化合物泡沫,降低液态碳氢化合物产品的硅含量

    公开(公告)号:US07427350B2

    公开(公告)日:2008-09-23

    申请号:US10988901

    申请日:2004-11-15

    CPC classification number: B01D19/0409

    Abstract: It has been discovered that crosslinked polydimethylsiloxane (PDMS) resins are useful defoamers and antifoamers for hydrocarbon-containing liquids, such as delayed coker feedstocks and feedstocks to preflash and atmospheric towers. These PDMS resins are crosslinked with either alkyl polysilicate or siloxane. The crosslinked PDMS resins may be used alone or together with linear PDMS, and are typically blended with a carrier such as kerosene for easier handling. Importantly, the use of crosslinked branched PDMS resins permit less total amount of polysiloxanes to be used, which reduces the silicon carryover in coker products and reduces poisoning of downstream catalysts.

    Abstract translation: 已经发现,交联的聚二甲基硅氧烷(PDMS)树脂是用于含烃液体的有用的消泡剂和消泡剂,例如延迟焦化原料和用于预闪蒸和大气塔的原料。 这些PDMS树脂与聚硅酸烷基酯或硅氧烷交联。 交联的PDMS树脂可以单独使用或与线性PDMS一起使用,并且通常与诸如煤油的载体混合以便于处理。 重要的是,使用交联的支化PDMS树脂允许使用的聚硅氧烷总量较少,这减少了焦化产物中的硅残留并减少了下游催化剂​​的中毒。

    Geosteering in earth formations using multicomponent induction measurements
    4.
    发明授权
    Geosteering in earth formations using multicomponent induction measurements 有权
    使用多组分感应测量的地球导向地球导向

    公开(公告)号:US07421345B2

    公开(公告)日:2008-09-02

    申请号:US11744702

    申请日:2007-05-04

    CPC classification number: G01V3/28

    Abstract: A multicomponent induction logging tool is used on a MWD bottomhole assembly. Multifrequency focusing that accounts for the finite, nonzero, conductivity of the mandrel is applied. Using separation of modes, the principal components and a direction of a conductivity tensor are determined. The results are used for reservoir navigation in earth formations. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

    Abstract translation: 在MWD井底组件上使用多组分感应测井工具。 应用了考虑到心轴有限非零导电性的多频聚焦。 使用模式分离,确定主成分和电导率张量的方向。 结果用于地层中的油藏导航。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72(b)

    Dual-cell mechanical flotation system with intermittent skimming
    6.
    发明授权
    Dual-cell mechanical flotation system with intermittent skimming 有权
    双电池机械浮选系统具有间歇撇渣

    公开(公告)号:US07416670B2

    公开(公告)日:2008-08-26

    申请号:US10534140

    申请日:2002-11-07

    Abstract: It has been discovered that a mechanical flotation system (10) having only two cells (18, 20) can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operating costs, as well as be resistant to floating oil recovery platform wave effects. The dual-cell mechanical flotation system (10) has, in sequential order, an inlet chamber (16) and two gasification chambers or cells (18, 20), each with at least one gas ingestion and mixing mechanism (32), and a discharge chamber (24). A common primary skim collection channel (40) atop the partition (44) dividing the gasification chambers (18, 20) efficiently channels away the bulk of the floating collected matter. At least one baffle (60) depending from the top of the vessel (12) near the primary skim collection channel (40) helps dampen the action of the fluid containing the suspended matter when the vessel (12) is affected by wave motion against the floating oil production platform. The liquid or froth levels (50, 66, and 76) can be intermittently raised for collection or otherwise lowered during periods of excessive turbulence (e.g. pitch or roll) to prevent clarified liquid from being collected with suspended matter.

    Abstract translation: 已经发现,仅具有两个电池(18,20)的机械浮选系统(10)可以与具有更多电池的机械浮选系统(10)几乎一样高效,而且提供了具有相当小的占地面积的装置,大大降低了资金和运营成本,如 以及抵抗浮油恢复平台的波浪效应。 双电池机械浮选系统(10)依次具有入口室(16)和两个气化室或电池(18,20),每个具有至少一个气体吸入和混合机构(32),以及 放电室(24)。 在分隔气化室(18,20)的隔板(44)上方的常见的主要脱脂收集通道(40)有效地将离散的收集物质的大部分通道排出。 至少一个从主要脱脂收集通道(40)附近的容器(12)的顶部悬垂的挡板(60)有助于当容器(12)受到波浪运动的影响时,抑制含有悬浮物质的流体的作用 浮油生产平台。 液体或泡沫水平(50,66和76)可以间歇地升高以用于在过量湍流(例如沥青或辊)期间收集或以其他方式降低,以防止澄清的液体被悬浮物收集。

    Downhole inflow control device with shut-off feature
    7.
    发明授权
    Downhole inflow control device with shut-off feature 有权
    井下入流控制装置具有切断功能

    公开(公告)号:US07409999B2

    公开(公告)日:2008-08-12

    申请号:US11193182

    申请日:2005-07-29

    CPC classification number: E21B43/14 E21B34/08 E21B34/10 E21B43/12

    Abstract: A system and method for controlling inflow of fluid into a production string. In aspects, the invention provides a downhole sand screen and inflow control device with a gas or water shut-off feature that can be operated mechanically or hydraulically from the surface of the well. The device also preferably includes a bypass feature that allows the inflow control device to be closed or bypassed via shifting of a sleeve. In embodiments, the flow control device can be adaptive to changes in wellbore conditions such as chemical make-up, fluid density and temperature. Exemplary adaptive inflow control devices include devices configured to control flow in response to changes in gas/oil ratio, water/oil ratio, fluid density and/or the operating temperature of the inflow control device. In other aspects of the present invention, inflow control devices are utilized to control the flow of commingled fluids drained via two or more wellbores.

    Abstract translation: 一种用于控制流入生产线的流体的系统和方法。 在一些方面,本发明提供一种具有气体或水分关闭特征的井下砂筛和流入控制装置,其可以从井的表面机械地或液压地操作。 该装置还优选地包括允许流入控制装置通过套筒移动而关闭或旁路的旁路特征。 在实施例中,流量控制装置可以适应于诸如化学成分,流体密度和温度的井眼条件的变化。 示例性自适应流入控制装置包括响应于气/油比,水/油比,流体密度和/或流入控制装置的操作温度来控制流量的装置。 在本发明的其他方面,流入控制装置用于控制通过两个或更多个井筒排出的混合流体的流动。

    Apparatus and method for mechanical caliper measurements during drilling and logging-while-drilling operations
    9.
    发明授权
    Apparatus and method for mechanical caliper measurements during drilling and logging-while-drilling operations 有权
    在钻井和钻井作业期间进行机械卡尺测量的装置和方法

    公开(公告)号:US07389828B2

    公开(公告)日:2008-06-24

    申请号:US11344291

    申请日:2006-01-31

    CPC classification number: E21B47/082 E21B47/08

    Abstract: A caliper tool used on a drilling tubular and having extensible members that remain decoupled with respect to the borehole wall during caliper measurements and while the extensible members are extended to allow movement in and through the borehole. A processor processes known and measured information to determine the size and shape of the borehole. Formation evaluation instruments may be included to allow formation evaluation substantially simultaneously with the caliper measurements.

    Abstract translation: 一种用于钻管的卡钳工具,具有可扩展的构件,其在卡钳测量期间相对于钻孔壁保持分离,并且在可扩展构件被延伸以允许在钻孔中穿过并穿过钻孔。 处理器处理已知和测量的信息以确定钻孔的尺寸和形状。 可以包括地层评估仪器,以使得地层评估基本上与卡尺测量同时进行。

    Pore-scale geometric models for interpretation of downhole formation evaluation data
    10.
    发明授权
    Pore-scale geometric models for interpretation of downhole formation evaluation data 有权
    用于解释井下地层评估数据的孔隙尺度几何模型

    公开(公告)号:US07363161B2

    公开(公告)日:2008-04-22

    申请号:US11445023

    申请日:2006-06-01

    CPC classification number: G01V3/32 G01N24/081

    Abstract: The grain size of a pore-scale geometric model of a clastic earth formation are adjusted so that the NMR relaxation time distribution output of the model matches a measured NMR distribution. Fluid drainage and imbibing can be simulated. Additional properties of the earth formation are predicted using the pore-scale model. The additional properties may be based on additional measurements of properties of a fluid in the formation.

    Abstract translation: 调整碎屑土地层的孔隙尺度几何模型的晶粒尺寸,使得模型的NMR弛豫时间分布输出与测量的NMR分布相匹配。 可以模拟流体排水和吸水。 使用孔隙尺度模型预测地层的附加属性。 额外的性质可以基于地层中流体的性质的附加测量。

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