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公开(公告)号：US11339650B2
公开(公告)日：2022-05-24
申请号：US16361761
申请日：2019-03-22
发明人： Michael Bittar , Jin Ma , Alexei Korovin
摘要： A compact sub assembly and well measurement system. The compact sub assembly may comprise a deep transmitter disposed about one end of the compact sub assembly, a shallow dual transmitter disposed on the compact sub assembly between the deep transmitter and a second end of the compact sub assembly, a shallow dual-collocated receiver disposed on the compact sub assembly between the deep transmitter and a second end of the compact sub assembly, and a deep receiver disposed about the second end of the compact sub assembly. A well measurement system for decoupling a component signal may comprise a logging tool. The logging tool may comprise a first sub assembly and a conveyance attached to the logging tool. In examples the first sub assembly is a compact sub assembly comprising a deep transmitter, a shallow dual transmitter, a shallow dual-collocated receiver, and a deep receiver.
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公开(公告)号：US20200370424A1
公开(公告)日：2020-11-26
申请号：US16961885
申请日：2019-01-31
发明人： Matthew Chase Griffing , Jin Ma , Michael Bittar
摘要： A method of fabricating a ferrite for use in a resistivity logging tool includes providing an uncured ferrite material, and pressing the uncured ferrite material into a channel to form the ferrite. The channel is defined on a surface of a bobbin associated with the resistivity logging tool, and the channel can be arcuate and extend at an angle offset from a central axis of the bobbin. The uncured ferrite material is then cured in place within the channels on the bobbin.
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公开(公告)号：US20130285665A1
公开(公告)日：2013-10-31
申请号：US13855408
申请日：2013-04-02
发明人： Hsu-Hsiang Wu , Michael Bittar
IPC分类号： G01V3/28
CPC分类号： E21B49/00 , E21B7/04 , E21B47/0002 , E21B47/02216 , E21B47/024 , E21B47/0905 , E21B47/122 , G01V3/28 , G01V3/30 , G01V3/38
摘要： A method of processing data from an electromagnetic resistivity logging tool which includes a transmitter coil and a receiver coil is disclosed. The electromagnetic resistivity logging tool is placed at a desired location. The transmitter coil and the receiver coil are positioned at a first azimuthal angle. A signal is transmitted from the receiver coil. The receiver coil then receives a signal. The signal at the receiver coil, a tilt angle of the transmitter coil, a tilt angle of the receiver coil and the first azimuthal angle are then used to calculate a first complex voltage representing at least one component of the received signal.
摘要翻译： 公开了一种从包括发射器线圈和接收器线圈的电磁测井工具处理数据的方法。 电磁阻力测井工具放置在所需的位置。 发射器线圈和接收器线圈以第一方位角定位。 从接收器线圈发送信号。 然后，接收器线圈接收信号。 接收器线圈处的信号，发射器线圈的倾斜角度，接收器线圈的倾斜角度和第一方位角然后用于计算表示接收信号的至少一个分量的第一复数电压。
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公开(公告)号：US20180371900A1
公开(公告)日：2018-12-27
申请号：US16059501
申请日：2018-08-09
发明人： Hsu-Hsiang Wu , Michael Bittar
IPC分类号： E21B49/00 , G01V3/38 , G01V3/30 , G01V3/28 , E21B47/09 , E21B7/04 , E21B47/024 , E21B47/022 , E21B47/00 , E21B47/12
摘要： A method of processing data from an electromagnetic resistivity logging tool which includes a transmitter coil and a receiver coil is disclosed. The electromagnetic resistivity logging tool is placed at a desired location. The transmitter coil and the receiver coil are positioned at a first azimuthal angle. A signal is transmitted from the receiver coil. The receiver coil then receives a signal. The signal at the receiver coil, a tilt angle of the transmitter coil, a tilt angle of the receiver coil and the first azimuthal angle are then used to calculate a first complex voltage representing at least one component of the received signal.
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公开(公告)号：US09851319B2
公开(公告)日：2017-12-26
申请号：US14432099
申请日：2013-05-03
发明人： Michael Bittar , Jing Li
CPC分类号： G01N27/025 , E21B49/08 , E21B2049/085 , G01N27/74 , G01V3/10 , G01V3/107 , G01V3/18 , G01V3/28
摘要： According to aspects of the present disclosure, systems and methods for measuring fluid resistivity are described herein. An example system may include a non-conductive tube. The non-conductive tube may be filled with a fluid, such as a formation fluid or drilling fluid, whose resistivity needs to be determined. A transmitter may be disposed around an outer surface of the non-conductive tube. A first receiver may be disposed around the outer surface of the non-conductive tube, and a second receiver may be positioned within a bore of the non-conductive tube. The transmitter may generate a primary electromagnetic field in a fluid within the tube, which may in turn generate an eddy current and a secondary electromagnetic field. The first and second receivers may be used to identify the eddy current and the resistivity of the fluid.
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6.发明申请公开(公告)号：US20150355368A1
公开(公告)日：2015-12-10
申请号：US14591540
申请日：2015-01-07
发明人： Shanjun Li , Hsu-Hsiang Wu , Michael Bittar
IPC分类号： G01V3/28
摘要： Methods and systems for characterizing a formation are disclosed. A tool is placed in the formation. The tool comprises a perpendicular antenna set and a parallel antenna set. The perpendicular antenna set comprises at least one transmitter antenna oriented perpendicular to at least one receiver antenna and the parallel antenna set comprises at least one transmitter antenna oriented parallel to at least one receiver antenna. Data is obtained from the tool and used to determine a compensated geosignal for each of the perpendicular antenna set and the parallel antenna set. The determined compensated geosignal is used to characterize the formation.
摘要翻译： 公开了用于表征地层的方法和系统。 工具被放置在地层中。 该工具包括垂直天线组和平行天线组。 垂直天线组包括垂直于至少一个接收机天线定向的至少一个发射机天线，并且所述并行天线组包括平行于至少一个接收机天线定向的至少一个发射机天线。 从工具获得数据，用于确定每个垂直天线组和平行天线组的补偿地理信号。 确定的补偿地质信号用于表征地层。
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公开(公告)号：US08947092B2
公开(公告)日：2015-02-03
申请号：US13949044
申请日：2013-07-23
发明人： Jing Li , Michael Bittar , Gary Kainer , Marvin Rourke
CPC分类号： G01V3/08 , G06F1/28 , G06F1/3203
摘要： A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.
摘要翻译： 公开了一种用于分析地下孔隙度的方法。 测量地层的表观介电常数和地层的视电阻率。 测量值用于确定测量的地层损耗角正切值。 地层水分损失角正切值可以用水介电常数和水电阻率表示。 然后使用测量的地层损耗角正切和地层水分损失角正切来确定地下地层水的实际介电常数和地下地层水的实际电阻率中的至少一个。 可以使用估计的水电阻率和水介电常数获得实际的地层孔隙度。
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公开(公告)号：US20220018244A1
公开(公告)日：2022-01-20
申请号：US17295751
申请日：2019-01-10
发明人： Michael Bittar , Hsu-Hsiang Wu , Yijing Fan
IPC分类号： E21B47/0228 , G01V3/12 , E21B43/24
摘要： A ranging system and method uses three-dimensional (“3D”) magnetic field measurements to correct ranging distance and direction. Ghost well interference may also be decoupled from the ranging solutions using 3D magnetic gradient field measurements.
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公开(公告)号：US20210349231A1
公开(公告)日：2021-11-11
申请号：US16911653
申请日：2020-06-25
摘要： This disclosure presents an apparatus and system for lowering the cost of implementing a downhole sensor system using attachable collars. In some aspects, the attachable collar includes a transmitter component, while supporting electronics are included with a main collar, thereby reducing the cost of the attachable collar. The supporting electronics can send a transmission signal, a control signal, a synchronization clock signal, a selected transmission frequency, a sensor orientation and selection, and other instructions to the transmitter in the attachable collar. The receiver in the main collar can receive the output, as reflected by the subterranean formation, and transform the output to subterranean formation evaluation measurements. The measurements can be communicated to other systems. In some aspects, the attachable collar can include the receiver and the main collar can include the transmitter. In some aspects, additional attachable collars can be included on the drill string to increase the transmitter-receiver spacing.
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公开(公告)号：US11169297B2
公开(公告)日：2021-11-09
申请号：US16484072
申请日：2018-09-14
发明人： Michael Bittar , Jin Ma
摘要： A logging tool includes a mandrel having an axis, a bobbin positioned about the circumference of the mandrel, and defining a first cross slot at a first slot angle and a second cross slot at a second slot angle opposite the first slot angle. The first and second cross slots intersect each other. The tool includes a first antenna in the first slot and including a first plurality of windings wrapped about the mandrel, a second antenna co-located with the first antenna and in the second slot, and an antenna shield secured to the tool mandrel and in each of the first and second slots. The first antenna is arranged in a first orientation and at a first winding angle. The second antenna is arranged in a second orientation and at a second winding angle.
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