数据汇交资源 - National Cryosphere Desert Data Center

0931-4967592
Register
Login
中文 EN

Collapse filters

天然气水合物开采方法及海域试采分析

天然气水合物开采方法及海域试采分析 2024-01-24

Keywords:: 天然气水合物; 开采方法; 海域试采; 相态平衡距; 对流注热降压法

天然气水合物分布广、埋藏浅、清洁无污染、储量巨大，被视为油气领域最有潜力的替代清洁能源。全球目前有５个国家进行了８次天然气水合物试采工作，特别是２０１７年５月中国神狐海域天然气水合物试采取得了巨大成功，创造了产气时间和产气总量两项世界纪录，但是由于天然气水合物特殊的物理力学性质和赋存状态，技术经济开采还面临诸...

Author:: 李守定,孙一鸣,陈卫昌
文件大小:: 4.5 MiB

Combined Tension-Shear Experimental Study of Rock Failure

Combined Tension-Shear Experi... 2024-01-24

Keywords:: Rock failure Tension-shear Failure criterionExperimental study

This paper deals with experimental study of rock failure under combined tension-shear condition. Combined achieved using self-developed apparatus. Tension-sh...

Author:: 李守定,刘丽楠,李晓
文件大小:: 1.2 MiB

Automatic Identification of Gas Hydrate Formation using Machine Learning Algorithms（利用机器学习算法自动识别天然气水合物的形成）

Automatic Identification of G... 2024-01-24

Keywords:: Ensemble learning; Well logging data; Hydrate recognition; Machine learning

Ensemble learning integrates the results of multiple weak learners through certain rules, so it has better learning effect than single weak learner. As a met...

Author:: 宁禹强,叶智慧,王涵,陈冬,李守定,朱丹丹
文件大小:: 750.7 KiB

Automatic Lithology Identification Based on Machine Learning: A Case Study of TZ4 Well（基于机器学习的岩性自动识别： TZ4 井案例研究）

Automatic Lithology Identific... 2024-01-24

Keywords:: Lithology identification; machine learning; sensitivity analysis; prediction accuracy

Lithology identification of hydrocarbon reservoir based on well logging curve is significant for drilling planning and reservoir development. The conventiona...

Author:: 郭斯尧,叶智慧,王涵,陈冬,朱丹丹
文件大小:: 253.4 KiB

利用粒子群算法实现陀螺仪耦合系统动态响应优化

利用粒子群算法实现陀螺仪耦合系统动态响应优化 2024-01-24

Keywords:: 陀螺仪耦合系统; 粒子群算法; 响应优化

利用平均法分析半球陀螺仪控制系统,得到通过 PID 模块实现的深度负反馈控制回路设计。根据大机动平台等对陀螺仪系统快速响应的要求,寻求方法对深度负反馈控制的 PID 参数整定以实现输出动态优化。系统中合项的存在是控制参数设计的难点。通过参数变换和输出结果分析,发现系统 PID 参数与系统动态响应之间没有明显的相关...

Author:: 王继寅,薛旭
文件大小:: 2.2 MiB

A Bulk-Type Pressure Sensor with Full-Bridge Implementation Enabled by Stress-Modifying Trenches

A Bulk-Type Pressure Sensor w... 2024-01-24

Keywords:: Pressure sensors; Resistors; Micromechanical devices; Sensitivity; Piezoresistive devices; Bridge circuits; Silicon

Incorporating a half Wheatstone bridge consisting of two sensing piezoresistors and two relatively constant reference resistors to measure the biaxial compre...

Author:: 林德泉,王文,周显良
文件大小:: 492.2 KiB

Using Pseudo Electrostatic Spring Constant to Optimize the Electromechanical Sigma-Delta Accelerometer

Using Pseudo Electrostatic Sp... 2024-01-24

Keywords:: IEEE SENSORS 2017

Using Pseudo Electrostatic Spring Constant to Optimize the Electromechanical Sigma-Delta Accelerometer

Author:: Xiong Xingyin,Ning Cong,Zongwei Li,Kedu Han et
文件大小:: 556.3 KiB

基于机器学习分类算法的地层水合物识别方法研究

基于机器学习分类算法的地层水合物识别方法研究 2024-01-24

Keywords:: 天然气水合物; 机器学习; 地层识别; 测井曲线; 参数优选

天然气水合物是高压低温条件下形成的类冰状结晶的烃类能源，燃值高、储量大，极具开发潜力。基于测井曲线可以识别地层水合物，由于传统的水合物地层识别方法依赖专家判断，效率不高、准确率不高，本文引入多种机器学习算法进行水合物层段识别，根据评价指标准确率、F1 分数、精确度与召回率等参数对预测结果进行评估，优选最佳算...

Author:: 叶智慧,宁禹强,张敏,李晓蓉
文件大小:: 1.8 MiB

220℃高温环形磁通门传感器

220℃高温环形磁通门传感器 2024-01-24

Keywords:: fluxgates; high temperature; drilling device; magnetic sensing; ring-core geometry

磁通门传感器是地球物理学磁场勘测的关键设备。在深层钻探等领域，磁通门传感器可能需要在高温下长时间稳定工作。我们提出了一种同心环型磁通门传感器，它能在高达 220 °C. 通过使用铁基纳米晶磁芯、PEEK 结构组件、环氧树脂包裹以及宽带短路工作模式，实现了高温一致性。在高达 220 通过评估阻抗、滞后、磁导率和灵敏...

Author:: 袁恺鑫,杜爱民,赵琳,孙树全,冯晓,张晨浩,张一鸣,秦华峰
文件大小:: 3.8 MiB

Intelligent planning of drilling trajectory based on computer vision（基于计算机视觉的钻井轨迹智能规划）

Intelligent planning of drill... 2024-01-24

Keywords:: Automatic well trajectory planning; Computer vision; Smart drilling; Geosteering

The conventional well trajectory design mainly developed from spatial mathematical model e.g. arcs or cylindrical spiral lines method, focusing on seeking op...

Author:: 王涵,陈冬,叶智慧,李军
文件大小:: 8.0 MiB

New insights into the carbonate karstic fault system and reservoir formation in the Southern Tahe area of the Tarim Basin

New insights into the carbona... 2024-01-24

Keywords:: Karstic fault system; Fault damage zones; Paleokarst reservoir; Reservoir types; Tarim basin

As worldwide hydrocarbon exploration has extended from shallowly to deeply buried strata, reservoir quality has attracted substantial and persistent interest...

Author:: Xinbian Lu,Yan Wang,Fei Tian
文件大小:: 12.1 MiB

Seismic frequency detection method and its application in high-speed train induced seismic

Seismic frequency detection m... 2024-01-24

Keywords:: Continental crust; SEISMOLOGY; Tomography; Computational seismology

Running high-speed trains (HST) can cause vibration of rails. The induced seismic waves may provide repeated high energy sources for subsurface detection. It...

Author:: 梁瑶,李学良,杨晓,石太昆,南方舟,邹安琪
文件大小:

一种随钻仪器用导电滑环装置

一种随钻仪器用导电滑环装置 2024-01-23

Keywords:

本发明专利通过一种机械导电滑环，解决井下随钻仪器具有相对转动的两个结构之间电力和信号的传输问题，结构简单，不涉及复杂的电路，成本低，可靠性高。过电及信号的芯数不受限制，可以根据需求选择，不存在电力传输效率问题，以及信号传输误码率问题。耐温、耐压、耐振动能力强。应用面比较广泛。

Author:: 何新振,王自力,底青云,杜建生,刘庆波
文件大小:: 1.4 MiB

MEMS PRESSURE GAUGE SENSOR AND MANUFACTURING METHOD（基于应变计原理的MEMS压力传感器及制造方法）

MEMS PRESSURE GAUGE SENSOR AN... 2024-01-24

Keywords:

MEMS PRESSURE GAUGE SENSOR AND MANUFACTURING METHOD（基于应变计原理的MEMS压力传感器及制造方法）

Author:: 周显良,王文
文件大小:: 1.6 MiB

Device and method for testing background noise of high precision acceleration sensor

Device and method for testing... 2024-01-24

Keywords:

Author:: 张潇筱,冯方方,韩可都,薛旭,杨长春,董旸
文件大小:: 252.5 KiB

一种航天磁场测量用数据分析储存装置

一种航天磁场测量用数据分析储存装置 2024-01-23

Keywords:

一种航天磁场测量用数据分析储存装置

Author:: 李智,杜爱民,张莹
文件大小:: 1.2 MiB

PRESSURE GAUGE CHIP AND MANUFACTURING PROCESS THEREOF（基于应变计原理的MEMS压力传感器及制造方法）

PRESSURE GAUGE CHIP AND MANUF... 2024-01-24

Keywords:

PRESSURE GAUGE CHIP AND MANUFACTURING PROCESS THEREOF（基于应变计原理的MEMS压力传感器及制造方法）

Author:: 周显良,王文
文件大小:: 1.5 MiB

一种磁通门磁力仪亥姆霍兹线圈安装工装

一种磁通门磁力仪亥姆霍兹线圈安装工装 2024-01-23

Keywords:

Author:: 李智,杜爱民,张莹,赵琳,孙树全,冯晓
文件大小:: 1.1 MiB

一种高精度加速度传感器本底噪声的测试装置及测试方法

一种高精度加速度传感器本底噪声的测试装置及测试方法 2024-01-23

Keywords:

Author:: 张潇筱,冯方方,韩可都,薛旭,杨长春,董旸
文件大小:: 367.0 KiB

MEDIA PARAMETER-MODIFIED METHOD FOR REALIZING AN ADAPTIVE EXPRESSION OF ANARBITRARY DISCONTINUOUS SURFACE

MEDIA PARAMETER-MODIFIED METH... 2024-01-24

Keywords:

A media Parameter-modified method for realizing an adaptive expression of an arbitrary discontinuous surface, comprising the following steps: importing an in...

Author:: 曹健,霍守东,周旭晖,石太昆,黄亮,邹佳儒
文件大小:: 53.1 KiB