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1. 发明公开

US20240204872A1 METHOD AND DEVICE FOR SUPPRESSING INTERFERENCE FADING NOISE OF OPTICAL FIBRE SENSING DATA 审中-公开
公开(公告)号：US20240204872A1
公开(公告)日：2024-06-20
申请号：US18287209
申请日：2022-06-30
申请人： China National Petroleum Corporation , BGP Inc., China National Petroleum Corporation
发明人： Yanpeng LI , Yuanzhong CHEN , Fei LI , Junjun WU
IPC分类号： H04B10/2537 , G01D5/353 , G01H9/00 , H04B10/071
CPC分类号： H04B10/2537 , G01D5/35361 , G01H9/004 , H04B10/071
摘要： A method and device for suppressing interference fading noise of optical fibre sensing data are disclosed. The method contains acquiring optical fibre sensing data not subjected to interference fading noise suppression; determining a fading point amplitude threshold based on the optical fibre sensing data; determining a signal fading point based on the fading point amplitude threshold; performing signal interpolation processing on the optical fibre sensing data corresponding to the signal fading point to obtain a signal subjected to interference fading noise suppression; performing phase demodulation and phase unwrapping processing on the signal subjected to interference fading noise suppression to obtain processed optical fibre sensing data.

2. 发明授权

US11493595B2 Method and apparatus for evaluating accuracy in positioning a receiver point 有权
公开(公告)号：US11493595B2
公开(公告)日：2022-11-08
申请号：US16768271
申请日：2018-11-01
申请人： CHINA NATIONAL PETROLEUM CORPORATION , BGP INC., CHINA NATIONAL PETROLEUM CORPORATION
发明人： Haishen Yang , Weiwei Zhao , Lijun Xu , Yongxin Xiao , Kunpeng Hou
IPC分类号： G01S5/22
摘要： A method for evaluating accuracy in positioning a receiver point, which is associated with at least one shot point, and for which a derived position data is obtained, wherein a pair of the receiver point and a respective shot point is associated with a characteristic parameter which includes an offset, a velocity of first arrival wave and a first arrival time, the method comprising: step S10, constructing a residual vector associated with the receiver point and the respective shot point based on the characteristic parameter; step S12, determining a characterization parameter of the derived position data based on the residual vector; and step S14, evaluating accuracy of the derived position data based on the characterization parameter. An apparatus for evaluating accuracy in positioning a receiver point is also provided.

3. 发明申请

US20230072038A1 METHOD AND APPARATUS FOR REMOVING TUBE WAVE INTERFERENCE FROM OPTICAL FIBER ACOUSTIC WAVE SENSING SEISMIC DATA 有权
公开(公告)号：US20230072038A1
公开(公告)日：2023-03-09
申请号：US17797708
申请日：2021-01-28
申请人： China National Petroleum Corporation , BGP Inc., China National Petroleum Corporation
发明人： Yanpeng Li , Fei Li
IPC分类号： G01V1/48 , G01V1/18
摘要： A method for removing tube wave interference from optical fiber acoustic wave sensing seismic data, including: acquiring seismic wavefield data which contains a tube wave and is collected by an optical fiber acoustic wave sensing instrument; calculating a root-mean-square amplitude of the waveform data cut on the seismic trace as an amplitude normalization factor; performing normalization processing on the amplitude value; performing de-tail mean filtering processing on the normalized amplitude value along the travel time of the tube wave, to obtain a predicted amplitude value; performing tube wave interference removal processing on each seismic trace, and performing inverse normalization processing to obtain the seismic wavefield data without tube wave interference. The method effectively suppresses the tube wave interference in the optical fiber acoustic wave sensing seismic data. An apparatus for removing tube wave interference from optical fiber acoustic wave sensing seismic data, and a computer device are further provided.

4. 发明授权

US10409251B2 Automatic inspection and monitoring method based on time domain slotting control 有权
公开(公告)号：US10409251B2
公开(公告)日：2019-09-10
申请号：US15159251
申请日：2016-05-19
申请人： China National Petroleum Corporation , BGP Inc.,China National Petroleum Corporation
发明人： Huadong Sun , Maojun Yang , Fulong Luo , Guosheng Li , Ying Xia , Lei Huang , Weiping Liu , Liuzheng Zhang , Yuan Wang
IPC分类号： G05B19/048 , H04B13/02 , H04L29/08 , H04L12/911 , H04L12/26 , G05B19/418 , G01V1/00 , G01V1/22
摘要： An automatic inspection and monitoring method based on time domain slotting control, belonging to the technical field where the field personnel can automatically inspect and monitor a field device of a seismic apparatus in the seismic exploration production. A method of extraction and transmission of a seismic apparatus host on the information of a field device is implemented by a master control program, test information about the seismic apparatus host on the field device can be automatically extracted and classified from the seismic apparatus host, and according to a designed push protocol, a protocol encoding is conducted; a data frame block is automatically generated; and then the information is delivered via a broadcasting station; an encoding protocol of information push is designed for avoiding information loss caused by signal instability, etc. during information push. According to the protocol, the state information on the field device is encoded to generate a data frame block. There is no more need in the present invention for the operating personnel of the seismic apparatus to read and broadcast the content of the field device item by item, and it only needs to set a software operation mode, so that the automatic extraction and transmission of the state information on the field device can be extracted and transmitted.

5. 发明公开

US20240377549A1 METHOD AND APPARATUS FOR INVERTING FORMATION WAVE IMPEDANCE USING DAS BOREHOLE SEISMIC DATA 审中-公开
公开(公告)号：US20240377549A1
公开(公告)日：2024-11-14
申请号：US18688121
申请日：2022-06-29
申请人： China National Petroleum Corporation , BGP Inc., China National Petroleum Corporation
发明人： Yanpeng LI , Zhidong CAI , Fei LI
IPC分类号： G01V1/30 , G01H9/00 , G01V1/22 , G01V1/40
CPC分类号： G01V1/306 , G01H9/004 , G01V1/226 , G01V1/40 , G01V2210/1299 , G01V2210/161 , G01V2210/59 , G01V2210/6169 , G01V2210/6226
摘要： A method for inverting a formation wave impedance using DAS borehole seismic data, including: acquiring an initial magnitude at a time window after the initial arrival time of seismic wavefield data in a well; mapping the initial magnitude to a relative wave impedance; and correcting the relative wave impedance to obtain an inverted wave impedance. Also provided are an apparatus for inverting a formation wave impedance using DAS borehole seismic data, a device, and a computer-readable storage medium.

6. 发明公开

US20240125963A1 METHODS AND SYSTEMS FOR ACQUIRING SEISMIC DATA OF FOUR-COMPONENT OCEAN BOTTOM NODE (OBN) 审中-公开
公开(公告)号：US20240125963A1
公开(公告)日：2024-04-18
申请号：US18395727
申请日：2023-12-25
申请人： BGP INC., CHINA NATIONAL PETROLEUM CORPORATION , OPTICAL SCIENCE AND TECHNOLOGY (CHENGDU) LTD.
发明人： Liang GOU , Gang YU , Haibo LIU , Zhaohong XU , Ximing WANG , Shujun XIA , Shujie AN , Mengxiong XIAO
IPC分类号： G01V1/38 , G01V1/20
CPC分类号： G01V1/3808 , G01V1/201 , G01V1/3835 , G01V1/3852 , G01V2001/204
摘要： The present disclosure provides a method and a system for acquiring seismic data of a four-component ocean bottom node (OBN). The method is implemented by the system, comprising controlling installations of a plurality of ocean bottom submerged buoys and a plurality of four-component OBN seismic data acquisition instruments and sending positioning signals and timing signals to the plurality of ocean bottom submerged buoys through armored opto-electronic composite cables. The method also includes obtaining real-time and uninterrupted water temperature data, pressure data, density data, and salt saturation data along the armored opto-electronic composite cables from the ocean surface to locations of the plurality of ocean bottom submerged buoys, and calculating real-time and three-dimensional data of waters of a whole measurement work area through interpolation. The method further includes performing real-time correction on a hydroacoustic velocity of each hydroacoustic propagation trajectory based on the location, the hydroacoustic propagation trajectory and the three-dimensional data of each acquisition instrument.

7. 发明申请

US20230041249A1 METHOD AND APPARATUS FOR EXTRACTING DOWNGOING WAVELET AND ATTENUATION PARAMETERS BY USING VERTICAL SEISMIC DATA 有权
公开(公告)号：US20230041249A1
公开(公告)日：2023-02-09
申请号：US17759100
申请日：2021-01-19
申请人： CHINA NATIONAL PETROLEUM CORPORATION , BGP INC., CHINA NATIONAL PETROLEUM CORPORATION
发明人： Yanpeng LI , Jing WANG
IPC分类号： G01V1/50
摘要： A method for extracting a downgoing wavelet and attenuation parameters from VSP data, comprising: performing upgoing and downgoing P-waves separation processing on VSP data to obtain downgoing P-wave data; performing a FFT on seismic data with a preset time window length starting from the P-wave first arrival time and cut from the downgoing P-wave data to obtain FFT transformed downgoing P-wave data and a multi-trace downgoing P-wave log spectrum; subtracting a downgoing wavelet log spectrum from the multi-trace downgoing P-wave log spectrum to obtain a wavelet-corrected multi-trace downgoing P-wave log spectrum; performing, based on parameters of the wavelet-corrected multi-trace downgoing P-wave log spectrum, a correction and an inverse FFT on the FFT transformed downgoing P-wave data to obtain a downgoing wavelet; and obtaining attenuation parameters based on P-wave first arrival time and the parameters of the wavelet-corrected multi-trace downgoing P-wave log spectrum. The method can extract a downgoing wavelet and attenuation parameters with high accuracy. Also provided are an apparatus for extracting a downgoing wavelet and attenuation parameters from VSP data, a computer device, and a computer-readable storage medium.

8. 发明授权

US11125898B2 Method and system for positioning seismic source in microseism monitoring 有权
公开(公告)号：US11125898B2
公开(公告)日：2021-09-21
申请号：US16263118
申请日：2019-01-31
申请人： China National Petroleum Corporation , BGP Inc., China National Petroleum Corporation
发明人： Qihu Jin , Congwei Liu , Yanpeng Li , Fei Li , Gang Xu , Fangdong Chu
IPC分类号： G01V1/28 , G01V1/00 , G01V1/30
摘要： The embodiments of the present application include acquiring a monitoring region and each observation point therein; partitioning the monitoring region into N layers of grids according to a seismic source positioning accuracy, wherein a side length of a grid cell of an i-th layer of grid is D/2i-1, i=1, . . . N, and D is an initial side length of the grid cell and not more than a double of a distance between the respective observation points; searching all nodes in a first layer of grid to acquire a node satisfying a preset condition therefrom; from i=2, determining and searching nodes satisfying a first preset requirement in the i-th layer of grid, to acquire a node satisfying the preset condition therefrom, until a search in an N-th layer of grid is completed, wherein a node satisfying the preset condition acquired in the N-th layer of grid is a seismic source point location.

9. 发明申请

US20160299482A1 AUTOMATIC INSPECTION AND MONITORING METHOD BASED ON TIME DOMAIN SLOTTING CONTROL 审中-公开
标题翻译：基于时域控制的自动检测和监控方法
公开(公告)号：US20160299482A1
公开(公告)日：2016-10-13
申请号：US15159251
申请日：2016-05-19
申请人： China National Petroleum Corporation , BGP Inc.,China National Petroleum Corporation
发明人： Huadong Sun , Maojun Yang , Fulong Luo , Guosheng Li , Ying Xia , Lei Huang , Weiping Liu , Liuzheng Zhang , Yuan Wang
IPC分类号： G05B19/048 , H04B13/02 , H04L29/08 , H04L12/911 , H04L12/26
CPC分类号： G05B19/048 , G01V1/008 , G01V1/22 , G01V2200/14 , G05B19/4185 , G05B2219/25428 , G05B2219/33212 , H04B13/02 , H04L43/0823 , H04L47/826 , H04L67/12 , Y02P90/18
摘要： An automatic inspection and monitoring method based on time domain slotting control, belonging to the technical field where the field personnel can automatically inspect and monitor a field device of a seismic apparatus in the seismic exploration production. A method of extraction and transmission of a seismic apparatus host on the information of a field device is implemented by a master control program, test information about the seismic apparatus host on the field device can be automatically extracted and classified from the seismic apparatus host, and according to a designed push protocol, a protocol encoding is conducted; a data frame block is automatically generated; and then the information is delivered via a broadcasting station; an encoding protocol of information push is designed for avoiding information loss caused by signal instability, etc. during information push. According to the protocol, the state information on the field device is encoded to generate a data frame block. There is no more need in the present invention for the operating personnel of the seismic apparatus to read and broadcast the content of the field device item by item, and it only needs to set a software operation mode, so that the automatic extraction and transmission of the state information on the field device can be extracted and transmitted.
摘要翻译：一种基于时域开槽控制的自动检测和监控方法，属于现场人员可以自动检测和监测地震勘测生产中的地震仪现场设备的技术领域。通过主控程序实现对现场设备的信息的地震装置主机的提取和发送的方法，可以从地震装置主机自动提取和分类关于现场设备上的地震装置主机的测试信息，并且根据设计的推送协议，进行协议编码; 自动生成数据帧块; 然后通过广播电台传送信息; 信息推送的编码协议设计用于在信息推送期间避免信号不稳定等引起的信息丢失。根据协议，对现场设备的状态信息进行编码以产生数据帧块。在本发明中，地震装置的操作人员不再需要逐项阅读和广播现场设备的内容，并且仅需要设置软件操作模式，以便自动提取和传输可以提取和发送现场设备上的状态信息。

10. 发明公开

US20240264319A1 DEVICES FOR FULL-WAVE FIELD SEISMIC SOURCE BASED ON GAS EXPLOSION TECHNOLOGIES AND METHODS FOR ACQUIRING SEISMIC DATA 审中-公开
公开(公告)号：US20240264319A1
公开(公告)日：2024-08-08
申请号：US18637442
申请日：2024-04-16
申请人： BGP INC., CHINA NATIONAL PETROLEUM CORPORATION , OPTICAL SCIENCE AND TECHNOLOGY (CHENGDU) LTD.
发明人： Liang GOU , Gang YU , Maojun YANG , Ximing WANG
IPC分类号： G01V1/137 , G01V1/04
CPC分类号： G01V1/137 , G01V1/04
摘要： The present disclosure provides a device for full-wave field seismic source based on a gas explosion technology and a method for acquiring seismic data. The device includes a cylindrical explosion-proof metal outer barrel, and four sides of the explosion-proof metal outer barrel are fixedly connected to four high-strength steel plates. The device also includes a cylindrical explosion-proof metal gas explosion inner barrel and pipelines for injecting high-pressure air and high-pressure gas into the gas explosion inner barrel. A center of the gas explosion inner barrel is installed with an electronic ignition gun, which is connected to a GPS timing module connected to the electronic ignition gun. The device further includes a controller configured to control a seismic source of a gas explosion full-wave field. Longitudinal wave source signals propagating vertically downward and perpendicular to ground, shear wave source signals propagating downward and parallel to a seismic source line direction, and shear wave source signals propagating downward and perpendicular to the seismic source line direction are triggered in sequence at each seismic source point. Longitudinal wave data and two transverse wave data orthogonal to each other and parallel to the ground excited through the each seismic source point are recorded in sequence by three-component geophones deployed on the ground, thereby achieving full-wave field exploration.

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