Banded paper clip
    11.
    发明授权
    Banded paper clip 失效
    带状回形针

    公开(公告)号:US5870802A

    公开(公告)日:1999-02-16

    申请号:US925997

    申请日:1997-09-09

    IPC分类号: B42F1/02 A44B21/00

    摘要: An improved paper clip consisting of a wire clip integrally wrapped within a folded semi rigid banding allowing for the display of printed advertising, promotional, marketing, messaging or decorative indicia, in a multitude of shape and size, as suits the material displayed, while being easier to apply, and remove, while providing protection to the papers to which it is attached from crushing and tearing.

    摘要翻译: 一种改进的回形针,其包括整体地包裹在折叠的半刚性条带内的线夹,其允许显示多种形状和尺寸的印刷广告,促销,营销,消息或装饰标记,以适应所显示的材料,同时 更容易应用和移除,同时为破碎和撕裂所附带的文件提供保护。

    Method of assaying compressive strength of rock
    12.
    发明授权
    Method of assaying compressive strength of rock 失效
    测定岩石抗压强度的方法

    公开(公告)号:US5767399A

    公开(公告)日:1998-06-16

    申请号:US621412

    申请日:1996-03-25

    IPC分类号: E21B49/00 E21B49/02 G01N33/24

    摘要: A method of assaying the compressive strength of rock comprises testing a primary plurality of rock samples of similar lithology, at least some of which have different porosities, to determine, for each sample respectively, a value corresponding to compressive strength and a value corresponding to porosity. A first series of pairs of electrical compressive strength and porosity signals, the signals of each pair corresponding, respectively, to the compressive strength and porosity values for a respective one of the samples, is generated. These signals are processed by a computer to extrapolate additional such pairs of signals and generate a second series of electrical signals corresponding to compressive strength as a function of porosity. The second series of signals may correspond to unconfined compressive strength, and may be further processed, to generate a cumulative series of signals, using electrical adjustment signals corresponding to other conditions affecting the compressive strength of the rock. Site characteristics of the rock for a wellbore locus, at a plurality of sites along the length of the locus, and as the rock would be addressed by a drill bit, are determined. At least one of these site characteristics is porosity. The site characteristics are used to generate a plurality of site signals, which, upon processing with the second series of signals (or cumulative series, if any), generate in-situ compressive strength signals corresponding to the in-situ compressive strengths of the rock at the respective sites.

    摘要翻译: 测定岩石的抗压强度的方法包括测试具有相似岩性的初级多个岩石样品,其至少一些具有不同的孔隙度,以分别为每个样品确定对应于抗压强度的值和对应于孔隙度的值 。 第一系列的电抗压强度和孔隙度信号,每一对的信号分别对应于相应一个样品的抗压强度和孔隙度值。 这些信号由计算机处理以推断额外的这种信号对,并产生对应于作为孔隙度的函数的压缩强度的第二系列电信号。 第二系列信号可以对应于无侧限的抗压强度,并且可以进一步处理,以产生累积的一系列信号,使用对应于影响岩石的抗压强度的其它条件的电调节信号。 确定井眼轨迹的岩石的位置特征,沿着轨迹长度的多个位置以及作为岩石的钻头的位置特征。 这些位置特征中的至少一个是孔隙度。 场地特征用于产生多个位置信号,其在用第二系列信号(或累积序列(如果有的话)处理时)产生对应于岩石的原位抗压强度的原位抗压强度信号 在各自的网站。

    Method and system for predicting performance of a drilling system for a
given formation
    13.
    发明授权
    Method and system for predicting performance of a drilling system for a given formation 有权
    用于预测给定地层钻井系统性能的方法和系统

    公开(公告)号:US6109368A

    公开(公告)日:2000-08-29

    申请号:US192389

    申请日:1998-11-13

    摘要: A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specifications of proposed drilling equipment for use in the drilling of the well bore, and predicting a drilling mechanics in response to the specifications as a function of the geology characteristic per unit depth according to a prescribed drilling mechanics model. The geology characteristic includes at least rock strength. The specifications includes at least a bit specification of a recommended drill bit. Lastly, the predicted drilling mechanics include at least one of bit wear, mechanical efficiency, power, and operating parameters. A display is provided for generating a display of the geology characteristic and predicted drilling mechanics per unit depth, including either a display monitor or a printer.

    摘要翻译: 用于预测用于在给定地层中钻井的钻井系统的性能的方法和装置包括根据规定的地质模型产生每单位深度的地层的地质特征,获得所提出的钻井设备的规格,用于 根据规定的钻井力学模型,根据作为每单位深度的地质特征的函数的规格,预测井眼的钻孔,并预测钻井力学。 地质特征至少包括岩石强度。 规格至少包括推荐钻头的位规格。 最后,预测的钻井力学包括钻头磨损,机械效率,功率和操作参数中的至少一个。 提供了一种显示器,用于产生地质特征和每单位深度的预测钻井力学的显示,包括显示监视器或打印机。

    Method for quantifying the lithologic composition of formations
surrounding earth boreholes
    14.
    发明授权
    Method for quantifying the lithologic composition of formations surrounding earth boreholes 失效
    用于量化围绕地球钻孔的地层岩性组成的方法

    公开(公告)号:US6044327A

    公开(公告)日:2000-03-28

    申请号:US970171

    申请日:1997-11-13

    IPC分类号: G01V1/50 G06F19/00

    CPC分类号: G01V1/50

    摘要: A well logging instrument, embodied both in drillstring and in wireline logging systems, is caused to traverse an earth borehole and to generate lithology-related data. First and second lithology compositional models are constructed from such data and are combined to determine a range of possible solutions having an upper limit defined by a pure component model and a lower limit defined by a proportional mixture model, thus allowing the maximum concentration of any lithologic component to vary between 0% and 100%. The exact value of the lithology lies between the upper and lower limits in the range of values and can be calibrated to a mineralogic analysis of actual core samples or drill cuttings.

    摘要翻译: 使钻井测井和电缆测井系统体现的测井仪器穿过地球钻孔并产生岩性相关数据。 从这些数据构建第一和第二岩性成分模型,并结合起来确定具有由纯组分模型限定的上限和由比例混合模型限定的下限的可能解决方案的范围,从而允许任何岩性的最大浓度 组分在0%和100%之间变化。 岩性的确切值位于值范围内的上限和下限之间,可以校准为实际岩心样品或钻屑的矿物学分析。

    Method of regulating drilling conditions applied to a well bit
    15.
    发明授权
    Method of regulating drilling conditions applied to a well bit 失效
    调整井钻井条件的方法

    公开(公告)号:US5704436A

    公开(公告)日:1998-01-06

    申请号:US621414

    申请日:1996-03-25

    IPC分类号: E21B12/02 E21B44/00 E21B44/08

    CPC分类号: E21B12/02 E21B44/00

    摘要: A method of regulating drilling conditions applied to a given well bit comprises assaying the compressive strength of the formation in an interval to be drilled by said bit. Wear of critical bit structure of the same size and design as in said given bit and which structure has drilled material of approximately the same compressive strength as that so assayed, is analyzed along with respective drilling data for the worn structure. From said analysis, a power limit for the respective compressive strength, above which power limit excessive wear is likely to occur is determined. Drilling conditions, such as rotary speed and weight-on-bit, at which the given bit is operated are regulated to maintain a desired operating power less than or equal to the power limit. Where several feasible rotary speed/weight-on-bit combinations may result in the desired operating power, these conditions are optimized.

    摘要翻译: 调节施加到给定钻井钻井条件的方法包括在所述钻头钻出的间隔内测定地层的抗压强度。 与所述给定钻头相同尺寸和设计的关键钻头结构的磨损以及具有与所测定的大致相同的抗压强度的钻孔材料的磨损与所磨损结构的相应钻孔数据一起进行分析。 根据所述分析,确定了可能发生功率极限过大磨损的相应抗压强度的功率极限。 调节给定位的操作的钻孔条件,例如旋转速度和重量位,以保持小于或等于功率极限的期望的操作功率。 在几个可行的旋转速度/重量对比组合可能导致期望的操作功率的情况下,这些条件被优化。