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公开(公告)号：US10802174B2
公开(公告)日：2020-10-13
申请号：US16220266
申请日：2018-12-14
发明人： Darren Chaney
摘要： Apparatus (10) for use in determining values of properties of n layers (16,17) of a borehole (11) formed in the Earth's crust (12) comprises a plurality of at least (2n-1) sensor members (19,21,22) of mutually differing, known or calculable, geometric factors, as defined with reference to a sample under investigation comprising n layers. The sensor members (19,21,22) are capable of detecting reflected or transmitted electromagnetic energy and the apparatus (10) includes one or more supports (24,26′) for supporting the sensor members (19,21,22) in a said borehole (11) adjacent and/or in contact with one or more said layers (16,17), the apparatus (10) being capable of causing transmission of electromagnetic energy along, and/or reflection of electromagnetic energy at, each sensor member (19,21,22) in a manner permitting the calculation of values of properties of such layers (16,17) based on reflected or transmitted energy values detected at the sensor members (19,21,22).
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公开(公告)号：US10295691B2
公开(公告)日：2019-05-21
申请号：US15291693
申请日：2016-10-12
摘要： To process geological log data, a two-dimensional set of log values recorded at a plurality of points is obtained about a borehole periphery, and over a chosen length along the borehole. The set of log values are decomposed by identifying in the set one or more main functions indicative of one or more main geological layer features of the rock penetrated by the borehole and removing log values corresponding to values of the main functions from the set of log values. Further decomposing the set of log values can be performed, as necessary iteratively, based on one or more subsidiary functions. The log values of the set remaining after identification and removal of values are designated as texture. Functions indicative of the main and subsidiary layer features and the texture are used to construct a synthesized volume representing the rock removed during creation of the chosen length of the borehole.
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公开(公告)号：US10255473B2
公开(公告)日：2019-04-09
申请号：US15471656
申请日：2017-03-28
摘要： A method and a resistivity image logging tool connected or connectable to one or more processing devices process geological log data to construct missing information from destroyed or occluded parts using cues from observed data. The geological log data signals can be generated through use of the logging tool having one or more electrodes interacting with a formation intersected by a borehole. The processing involves the steps of: in respect of one or more data dimensions associated with missing values in a log data set, decomposing the signal into a plurality of morphological components; and morphologically reconstructing the signal such that missing values are estimated.
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公开(公告)号：US09512697B2
公开(公告)日：2016-12-06
申请号：US13905257
申请日：2013-05-30
申请人： James Arthur Pike
发明人： James Arthur Pike
CPC分类号： E21B17/028 , E21B17/023 , E21B41/00 , E21B47/122
摘要： A downhole tool coupling (10) comprises first (11) and second (12) downhole tool elements that are securable one to the other in a releasably locking manner by moving the tool elements from a longitudinally relatively less proximate, especially overlapping position into longitudinally relatively more overlap with one another. The first downhole tool element (11) supports a first inductive, capacitative and/or magnetic energy coupler (23) and the second downhole tool element (12) supports a second inductive, capacitative and/or magnetic energy coupler (24). The first and second energy couplers (23, 24) are movable from an energetically uncoupled position when the tool elements (11, 12) are in the longitudinally relatively less overlapping position to an energetically coupled position when the first and second downhole tool elements (11, 12) overlap relatively more.
摘要翻译： 井下工具联接器（10）包括第一（11）和第二（12）井下工具元件，其通过将工具元件从纵向相对较少接近的，特别重叠的位置移动到纵向相对的位置而以可释放地锁定的方式彼此固定 更重叠。 第一井下工具元件（11）支撑第一电感，电容和/或磁能耦合器（23），第二井下工具元件（12）支撑第二电感，电容和/或磁能耦合器（24）。 当第一和第二井下工具元件（11,12）处于纵向相对较小重叠的位置时，第一和第二能量耦合器（23,24）可以从能量分离的位置移动， ，12）相对重叠。
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公开(公告)号：US20150219791A1
公开(公告)日：2015-08-06
申请号：US14174476
申请日：2014-02-06
发明人： David Eccles , Jian Huang , Ovunc Mutlu
CPC分类号： G01V99/00 , E21B49/006
摘要： A method of calculating the unconfined compressive strength (UCS) of subterranean rock having a borehole formed or being formed therein comprises the steps of: (a) establishing or accessing a set of input variables pertaining to characteristics of the rock and the geographical region in which the rock exists; (b) allocating to each of a plurality of mnemonic types each representing a respective UCS calculation expression and contained within a database of UCS calculation curves up to one said input variable in the form of a data element or up to one series of said input variables in the form of a data curve the allocation taking place on the basis of identity of each said input variable or data curve, as applicable, to which a said UCS calculation curve is allocated to a variable of a said UCS calculation curve (herein “curve variables”); (c) dividing the set of allocated UCS calculation curves according to one or more respective zones of the rock to which they pertain and calculating a resultant curve; (d) as necessary filtering the resulting set of UCS calculation curves to reduce the number of allocated UCS calculation curves to a single UCS calculation curve for each zone; (e) repeating step (d) in respect of any further said zones of the rock; (f) when step (d) is repeated one or more times, combining the resulting single curves allocated to the respective zones so as to create a composite UCS calculation curve; and (g) using the composite UCS calculation curve to calculate UCS values at one or more locations in the borehole.
摘要翻译： 计算具有在其中形成或正在形成的钻孔的地下岩石的无侧限抗压强度（UCS）的方法包括以下步骤：（a）建立或访问与岩石和地理区域的特征有关的一组输入变量，其中 岩石存在; （b）分配给多个助记符类型中的每一个，每个记忆类型各自表示相应的UCS计算表达式，并且包含在UCS计算曲线的数据库内，直到一个所述输入变量为数据元素的形式或多达一系列所述输入变量 以数据曲线的形式，基于每个所述输入变量或数据曲线的身份（如适用）进行分配，将所述UCS计算曲线分配给所述UCS计算曲线的变量（此处为“曲线” 变量“）; （c）根据与它们相关的岩石的一个或多个相应区域划分所分配的UCS计算曲线集合并计算合成曲线; （d）根据需要过滤所得到的一组UCS计算曲线，以将分配的UCS计算曲线的数量减少到每个区域的单个UCS计算曲线; （e）对岩石的任何另外的所述区域重复步骤（d）; （f）当步骤（d）重复一次或多次时，组合分配给相应区域的所得到的单个曲线，以便产生复合UCS计算曲线; 和（g）使用复合UCS计算曲线来计算钻孔中一个或多个位置处的UCS值。
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公开(公告)号：US06909969B2
公开(公告)日：2005-06-21
申请号：US10394671
申请日：2003-03-21
CPC分类号： G01V5/104
摘要： A gas detection method includes carrying out respective neutron and density logs, using neutron and density detectors, along a length of well. The density log is corrected for the dimensions and properties of the well casing. The corrected density log is then combined with the neutron log to compensate for regions of artificially high density outside the casing. The compensated density log is continuously calibrated against the neutron log. The dynamically calibrated density and neutron logs are inspected for crossovers that signify the presence of gas in a formation.
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公开(公告)号：US11187794B2
公开(公告)日：2021-11-30
申请号：US15924619
申请日：2018-03-19
发明人： Terence Paul Mayor , Philip Botting
摘要： An acoustic dipole waveform generator has a hollow housing defining an elongate axis and having secured therein at least a force reaction member defining at least a force reaction surface and having hingingly secured thereto an actuator element. The piezoelectric actuator elements define mutually non-aligned length change axes and extend from the reaction member towards at least one moveable piston member hingingly secured to at least one of the actuator elements inside the housing. The piston member is constrained to move in a direction extending perpendicular to the axis, the piston member defining respectively at mutually spaced locations in the housing a pair of heads that, on movement of the piston member, each generate a respective pressure wave and the housing permitting transmission of the wave externally thereby permitting generation of a dipole pressure waveform externally of the housing on changing of the lengths of the actuator elements.
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公开(公告)号：US10753202B2
公开(公告)日：2020-08-25
申请号：US15628911
申请日：2017-06-21
摘要： A method and a resistivity image logging tool connected or connectable to one or more processing devices process geological log data to construct missing information from destroyed or occluded parts using cues from observed data. The geological log data signals can be generated through use of the logging tool having one or more electrodes interacting with a formation intersected by a borehole. The processing involves the steps of: in respect of one or more data dimensions associated with missing values in a log data set, decomposing the signal into a plurality of morphological components; and morphologically reconstructing the signal such that missing values are estimated.
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公开(公告)号：US10677959B2
公开(公告)日：2020-06-09
申请号：US14174476
申请日：2014-02-06
发明人： David Eccles , Jian Huang , Ovunc Mutlu
摘要： A method of calculating the unconfined compressive strength (UCS) of subterranean rock having a borehole formed or being formed therein comprises the steps of: (a) establishing or accessing a set of input variables pertaining to characteristics of the rock and the geographical region in which the rock exists; (b) allocating to each of a plurality of mnemonic types each representing a respective UCS calculation expression and contained within a database of UCS calculation curves up to one said input variable in the form of a data element or up to one series of said input variables in the form of a data curve the allocation taking place on the basis of identity of each said input variable or data curve, as applicable, to which a said UCS calculation curve is allocated to a variable of a said UCS calculation curve (herein “curve variables”); (c) dividing the set of allocated UCS calculation curves according to one or more respective zones of the rock to which they pertain and calculating a resultant curve; (d) as necessary filtering the resulting set of UCS calculation curves to reduce the number of allocated UCS calculation curves to a single UCS calculation curve for each zone; (e) repeating step (d) in respect of any further said zones of the rock; (f) when step (d) is repeated one or more times, combining the resulting single curves allocated to the respective zones so as to create a composite UCS calculation curve; and (g) using the composite UCS calculation curve to calculate UCS values at one or more locations in the borehole.
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公开(公告)号：US10281608B2
公开(公告)日：2019-05-07
申请号：US14645489
申请日：2015-03-12
摘要： A method of improving geological log data obtained from use of one or more logging tools, the method including the steps of (i) from raw log data recorded by the said one or more logging tools, respectively deriving according to differing first and second derivation methods a first log data set and a corresponding second log data set having the same vertical response attribute, (ii) mixing, to form resulting log curves, the first and second log data sets, the extent of mixing varying from one logged depth to another in relation to a function of (a) the semblance between the recorded log data and reference log data of a differing kind from the recorded log data and (b) the activity of one of the said first and second log data sets at each logged depth; and (iii) displaying transmitting, saving, outputting or processing one or more resulting improved log curves.
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