检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

512 篇 会议
260 篇 期刊文献
4 篇 专利
1 册 图书

馆藏范围

777 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

580 篇 工学
- 362 篇 石油与天然气工程
- 196 篇 化学工程与技术
- 164 篇 材料科学与工程（可...
- 157 篇 动力工程及工程热...
- 121 篇 计算机科学与技术...
- 114 篇 机械工程
- 113 篇 土木工程
- 103 篇 力学（可授工学、理...
- 89 篇 软件工程
- 56 篇 电气工程
- 54 篇 建筑学
- 43 篇 水利工程
- 42 篇 矿业工程
- 35 篇 电子科学与技术（可...
- 35 篇 船舶与海洋工程
- 34 篇 仪器科学与技术
- 33 篇 冶金工程
- 30 篇 安全科学与工程
- 29 篇 控制科学与工程
- 24 篇 信息与通信工程
391 篇 理学
- 166 篇 物理学
- 145 篇 化学
- 116 篇 数学
- 97 篇 地质学
- 64 篇 地球物理学
- 29 篇 统计学（可授理学、...
71 篇 管理学
- 68 篇 管理科学与工程(可...
- 24 篇 工商管理
17 篇 经济学
6 篇 医学
4 篇 农学
1 篇 法学
1 篇 教育学

主题

16 篇 horizontal wells
16 篇 hydraulic fractu...
12 篇 drilling fluids
12 篇 research and dev...
12 篇 infill drilling
11 篇 fracture
8 篇 temperature
8 篇 lithology
8 篇 computational mo...
8 篇 drilling
7 篇 rock mechanics
7 篇 rocks
7 篇 gases
7 篇 stress
6 篇 carbon dioxide
6 篇 cements
6 篇 boreholes
6 篇 random access me...
6 篇 drilling fluid
6 篇 silicon

机构

336 篇 cnpc engineering...
34 篇 china university...
32 篇 cnpc engineering...
24 篇 college of petro...
21 篇 cnpc engineering...
19 篇 school of petrol...
17 篇 cnpc engineering...
16 篇 national enginee...
15 篇 china university...
11 篇 cnpc engineering...
11 篇 cnpc engineering...
10 篇 petrochina tarim...
9 篇 unconventional p...
8 篇 college of petro...
8 篇 state key labora...
7 篇 state key labora...
7 篇 research institu...
7 篇 national enginee...
6 篇 petrochina tarim...
6 篇 sinopec research...

作者

17 篇 xiao yue
17 篇 ji guodong
16 篇 chen zhaowei
16 篇 zhou tuo
16 篇 zhang yang
15 篇 sun jinsheng
14 篇 chen chen
13 篇 dong jingnan
12 篇 wang ren
12 篇 cui meng
12 篇 liu huifeng
11 篇 wang haige
11 篇 cheng rongchao
11 篇 fu jin
10 篇 zhong zhao
10 篇 qiao yan
10 篇 zhang jiawei
10 篇 jin-sheng sun
9 篇 yang henglin
9 篇 ban fansheng

语言

724 篇 英文
37 篇 其他
13 篇 中文
1 篇 日文

检索条件"机构=CNPC Engineering and Technology R&D Company"

共 777 条记录，以下是81-90 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

LSTM recurrent Neural Network Based Method for Identification of drilling Operating Conditions and Its Application 58

LSTM Recurrent Neural Network Based Method for Identificatio...

引用

58th US rock Mechanics / Geomechanics Symposium 2024, ArMA 2024

作者： Chen, Changchang Ji, Guodong Zhang, Hongyuan Sun, Yuqi Wu, Qiang Lv, Zehao CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9798331305086

Polycrystalline diamond Compact (PdC) bit underground operating conditions identification is one of the difficulties during the drilling operation. It is of great significant for the drilling improvement and accurate construction formation to accurately identify the complex operating conditions during drilling the operation such as PdC bit wearing and stick-slip vibration, etc. In this paper, data of relationship between torque, rate of penetration (rOP) signal and weight on bit (WOB), rev were obtained through lab simulation experiment, after which, a relationship database of torque, rOP signal and WOB, rev was established, a single-layer Long Short Term Memory (LSTM) recurrent neural network (LSTM) was constructed, the number of neurons, batch size and optimizer type of LSTM layer were optimized. With BPTT algorithm, LSTM model was trained and tested on the training set containing 6000 groups of data, and achieved the goal of identifying the bit operation conditions against the input of WOB, torque, rev and rOP signal parameters. Based on this model, the PdC bit underground operating conditions identification software was compiled, and was connected to the logging unit to realize real-time identification of bit underground operating conditions, and field test application was successfully carried out in Mahu 1 Well region. The research showed that the convergence speed was fast and the time cost was at the lowest when the number of neurons of LSTM model was 50, and that the optimized Adam optimizer model could meet the requirements of convergence speed and prediction accuracy with the lowest loss value. The classification accuracy of this model on the test set reached 94% and the accuracy of the prediction method was also verified by field test application. Copyright 2024 ArMA, American rock Mechanics Association.

关键词： Stick-slip

来源：评论

学校读者我要写书评

暂无评论

An Adaptative Well Trajectory Control Method for drilling Automation 57

An Adaptative Well Trajectory Control Method for Drilling Au...

引用

57th US rock Mechanics/Geomechanics Symposium

作者： Junlong, Chen Xueping, Tang Xinmiao, Teng Wenkai, Gao CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9780979497582

It is necessary to take some activities to correct the well-trajectory when it deviated from the designed well-path for the complex structural wells. In order to reduce the deviation from the planned well-path, we proposed a path following algorithm by backstepping method. The relative distance between the bit and planned well-path was calculated by the true vertical depth (TVd). The first and second order differential equations of the offset were established as the control function. Lyapunov function was constructed not only to verify the global consistent asymptotic stability of the system but also form a build-up rate control method. When the deviation between the real drilling trajectory and the planned well-path has exceeded the allowable threshold value, the algorithm automatically calculates the relative distance and angle, analyses and send the optimal strategy to the steering tools. The results show that the above algorithm can quickly track the designed well-path and ensure to avoiding oscillation. This method can be used in the future downhole closed-loop system. © 2023 57th US rock Mechanics/Geomechanics Symposium. All rights reserved.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

Practice and Exploration of data Governance for drilling Completion 13th

Practice and Exploration of Data Governance for Drilling Com...

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Jing, Ling-Zhi Cui, Meng Yang, Xin-Yi Tian, Yu-Meng Shi, Xiao-Yan CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9789819702718

drilling and completion is the core of energy production and plays an irreplaceable role in improving oil and gas exploration and development and increasing crude oil recovery. Similarly, drilling data is of great significance in drilling optimization, perforation, hydraulic fracturing, and oil and gas production. However, in actual production, data quality and application often fall short, making it difficult to further enhance and optimize oilfield engineering technology. Therefore, effective data governance to address data quality and application problems has become an urgent and critical issue. Additionally, the scale, quality, complexity, and security of data are essential issues that must be considered in data governance processes. To address these issues, this paper proposes an engineering technology data governance approach covering data quality control, data standardization, data modeling, and data mining. These methods and tools have been applied in production practices, and have achieved good results. Additionally, this paper explores the application of intelligent data governance, which aims to quickly and efficiently manage data. This paper compares the advantages and disadvantages of existing data governance algorithms in data governance, providing reference application scenarios for more efficient, reliable, and accurate drilling data governance. In summary, the proposed data governance approach and techniques provide the foundation for further improvements in oilfield engineering technology and management, as well as enhancing data utilization and decision-making for the petroleum service industry. Effective methods and tools must be used to address the challenges of data governance, including data scale, quality, complexity, and security. The proposed data governance approach for engineering technology, along with its applications and exploration in intelligent data governance, provides significant support for the exploration and implementation of d

关键词： Quality control

来源：评论

学校读者我要写书评

暂无评论

Experimental Study on the Transmission Law of Ultrasonic in Mud 1

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Zhang, Shuo Gao, Wen-Kai Teng, Xin-Miao ding, Hua-Hua Liu, Ke Yu, de-Zhou CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (数字)9789819704798

ISBN: (纸本)9789819704781

In the process of oil and gas exploitation, the problems of wellbore instability and collapse seriously restrict the efficiency and safety of drilling and completion engineering. Ultrasonic borehole imaging technology while drilling has the advantages of accurately reflecting borehole shape, identifying fractures, pores, bedding and other characteristics. It can be used for real-time monitoring and evaluation of borehole engineering conditions and quality while drilling, which can effectively reduce drilling risks and costs, improve drilling efficiency and reservoir drilling rate. In order to develop ultrasonic borehole imaging tools while drilling and accurately interpret the ultrasonic images, this paper researches the transmission law of ultrasonic in mud, builds and designs the experimental device and experimental platform, formulate the experimental scheme. Laboratory simulation experiments were carried out to analyze the effects of different measurement distances, different mud density, different temperatures and different objects on the travel time and echo amplitude of ultrasonic and the main factors affecting the imaging effect. The experimental results show that: (1)The ultrasonic travel time increases linearly with the increase of measurement distance, increases with the increase of mud density, and increases slightly with the increase of transmission medium (water) temperature;(2) The ultrasonic echo amplitude decreases exponentially with the in-crease of measurement distance, decreases exponentially with the increase of mud density, and increases slightly with the increase of trans-mission medium (water) temperature;(3) Ultrasonic travel time information can be used for well diameter measurement and wellbore shape identification;(4) The ultrasonic echo amplitude information can be used to identify and image the characteristics of wall cracks, pores and holes;(5) Ultrasonic can be applied to the measurement and imaging of high density oil/water-based mud

关键词： Boreholes

来源：评论

学校读者我要写书评

暂无评论

development of Underground Electro-motor development of a New downhole Electro-motor 12th

Development of Underground Electro-motor Development of a Ne...

引用

12th International Field Exploration and development Conference, IFEdC 2022

作者： Wang, Ai-Guo Han, Fei Wang, Hong-Wei Chen, Lang-Yi CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9789819919635

In recent years, some new downhole motors have emerged one after another, such as high-torque high-speed positive displacement motor, long-life turbine motor and downhole electro-motor, which provide supplemental driving forces to the petroleum drilling. different from conventional turbine motors and screw motors, the downhole electro-motor uses the electro-motor to directly drive the bit to break the rock, and it transmits power and information through the wireline drill pipe. With the feature of infinitely adjustable rotating speed, it can realize real-time optimization of parameters (e.g. rotating speed, WOB and flow rate). It is applicable to diverse circulation media including oil-based mud, waterbased mud, foam, air, and nitrogen. Moreover, it can realize high-capacity twoway communication at high speed, and be capable of measurement/monitoring while drilling. This paper presents the design, in-plant test and pilot well test of a new downhole electro-motor. This new downhole electro-motor was tested in 150 m drilling. Through the test, it is verified that the new downhole electromotor is capable of actual drilling, with the rotating speed and torque adjustable infinitely in real time, and the maximum communication rate of 156 kbps. The new downhole electro-motor is energy-saving and efficient, and provides a new technical platform for automatic and intelligent drilling. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.

关键词： Permanent magnets

来源：评论

学校读者我要写书评

暂无评论

Early Stuck Pipe detection Based on Time Series Analysis

Early Stuck Pipe Detection Based on Time Series Analysis

引用

2024 SPE Asia Pacific Oil and Gas Conference and Exhibition, APOGCE 2024

作者： Shi, Xiaoyan Ji, Yong Cui, Meng Wu, dong Guo, Weihong Jing, Lingzhi Tian, Yumeng Yang, Xinyi CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9781959025269

recognizing stuck pipe signs in an earlier time and adopting appropriate action can greatly reduce nonproductive time during drilling and improve drilling safety. The purpose of this paper is to propose a time series analysis approach and build a reliable and easy-to-use tool to automatically detect stuck pipe accurately and early. Based on the in-depth theoretical analysis and historical stuck pipe data analysis, main early stuck pipe indicators during different drill operations are identified. More than ten time series analysis algorithms and machine learning algorithms are utilized to capture subtle change trends and local change patterns in noisy real-time measured surface data during drilling, and a self-adaptive threshold value determination method is proposed to improve the detection accuracy under different data measurement quality. Moreover, correlation analyses are conducted on the multidimensional time series based on the studied rules and priori knowledge to reduce the false alarms caused by curtain drilling operations. An early stuck pipe detection software tool is built. The tool consumes both real-time and archived drilling data, and provides alarms when stuck pipe indicators are detected. 19 wells’ historical drill data are fed to the tool for algorithm verification, the results show that the tool can automatically detect all 22 stuck pipe incidents in the data set, among which, 5 incidents were detected 2 hours before the field recorded event time, 2 incidents were detected more than 1 hour before the field recorded time, 8 incidents were detected 3-42 minutes before, 4 incidents were detected about the same time as the field recorded time, and 3 incidents were detected less than 2 minutes later than the field recorded time. The average false alarm rate is about once per 48 hours operation time. The tool was also connected to the real-time drilling data in remote drilling operation support center. during the trail, two early stuck pipe signs are cap

关键词： drills

来源：评论

学校读者我要写书评

暂无评论

development Analysis and Prospect of Continuous Circulation drilling technology 13th

Development Analysis and Prospect of Continuous Circulation ...

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Hu, Zhi-Jian Li, Xing-Yue Shao, Qiang Cheng, Jin CNPC Engineering Technology R&D Company Limited Beijing China

ISBN: (纸本)9789819702558

Continuous circulation drilling technology has been widely applied abroad and has become an effective means to solve the safety of drilling in complex formations. However, due to insufficient understanding, there is still a significant gap in product development and application level between China and foreign countries. In order to improve understanding, the paper first systematically reviews the development history and current situation of continuous circulation drilling technology and products in domestic and foreign, and then through typical application cases, the main application fields and advantages of the current continuous cycle drilling technology are analyzed and summarized, as well as the applicability, compatibility, safety and reliability of different products. The application practice show that it can play an important role in the narrow density window wells, HTHP wells, Erd wells, horizontal wells and gas/foam drilling wells, and significantly improve the drilling safety and success rate. In view of the development requirements of domestic oil and gas resources, the development plan of applying continuous circulation drilling technology to potential fields such as ultra-deep carbonate reservoir and unconventional shale gas is proposed, and according to the characteristics of two different systems, the optimal schemes are selected and the corresponding development objectives are formulated, which will provide useful reference for promoting the further development of continuous circulation drilling technology. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Horizontal wells

来源：评论

学校读者我要写书评

暂无评论

Study on Perforation Erosion in Hydraulically Fractured Shale Gas Wells Through downhole Video Imaging and Computational Fluid dynamic Modelling

Study on Perforation Erosion in Hydraulically Fractured Shal...

引用

2024 SPE Asia Pacific Oil and Gas Conference and Exhibition, APOGCE 2024

作者： Yuan, L. Hu, S.L. Mu, L.Y. Wang, d.L. Yang, X.T. CNPC Oilfield Service Company Limited China CNPC Engineering Technology R&D Company Limited China

ISBN: (纸本)9781959025269

The limited-entry technology was a key technology in the multistage fracturing of shale oil and gas horizontal wells to help distribute fracture fluid among multiple perforation clusters evenly. However, perforations could be eroded and enlarged because of high-speed and continuous abrasion by the proppants, resulting in unequal inflow and uneven cracks propagation between perforation clusters, which caused low efficiency of the fracture treatment. Considering that the perforation erosion has not been fully understood yet, special attention should be paid to this aspect of research. In this work, post-fracturing perforations erosion images were collected by the downhole video imaging technology, which was employed to qualitatively analyze the geometrical morphology. Then, the erosion data (perforation diameter & perforation area) at different phases were utilized to quantitatively summarize the perforation erosion & chambering laws. Finally, perforation erosion models were built using computational fluid dynamics (CFd) to simulate the distribution of the flow field when high-speed fracturing fluid with proppants injected perforations, which would help interpret the analysis of the results. Based on above technics, the erosional pattern of perforation would be clearly revealed. One thousand and two perforation erosion images from medium to deep shale gas wells in Sichuan and Chongqing regions demonstrated that post-fracturing perforations appeared in four different geometrical morphology, including round (under-erosion, 10%), droplets (normal-erosion, 52%), near-droplets (over-erosion, 25%) and irregularity (abnormal-erosion,13%). due to the influence of the proppant concentration profile, perforations located near the downside of the horizontal wellbore suffered more severe erosion, for example, the most eroded perforation was near phase 180 degree with an average diameter of 18.4 mm which was 1.8 times larger than that of perforations near phase 0 degree (10.4 mm).

关键词： Proppants

来源：评论

学校读者我要写书评

暂无评论

A data Augmentation Method of Variable density Logging Image Based on GAN 57

A Data Augmentation Method of Variable Density Logging Image...

引用

57th US rock Mechanics/Geomechanics Symposium

作者： Wang, Z. Song, X.Z. Li, Z. Zhang, Y.L. Yang, X.Y. Pan, T. Zhu, Z.P. Beijing China CNPC Engineering Technology R&D Company Limited China

ISBN: (纸本)9780979497582

In recent years, with the development of artificial intelligence technology, cementing quality evaluation models based on supervised learning algorithms have been gradually proposed and applied. These models automatically evaluate cementing quality by identifying variable density logging images. However, due to the uneven number of training samples (variable density logging images), the accuracy of automatic evaluation models is low, to solve this problem, this paper proposes a Wasserstein distance generation countermeasure network (VdL-WGAN) for variable density well logging images. In VdL-WGAN, the generator network uses reconstruction loss to improve the image generation ability of the model. To evaluate image quality, this paper calculates the PSNr and SSIM values of the generated images and trains the optimal model. After expanding the samples, the intelligent evaluation model of cementing quality is trained to improve the recognition accuracy. The VdL-WGAN proposed in this paper can improve the generation of high-quality virtual samples of logging variable density images, improve the accuracy of the intelligent evaluation model of cementing bond quality, and achieve the effect of data expansion. © 2023 57th US rock Mechanics/Geomechanics Symposium. All rights reserved.

关键词： Generative adversarial networks

来源：评论

学校读者我要写书评

暂无评论

Application of Support Vector Machine (SVM) Method in reservoir Lithology Classification in Sichuan Basin 13th

Application of Support Vector Machine (SVM) Method in Reserv...

引用

13th International Field Exploration and development Conference, IFEdC 2023

作者： Yu, Jin-Chen CNPC Engineering Technology R&D Company Ltd. Beijing China

ISBN: (纸本)9789819704828

reservoir evaluation is essential for the scientific and rational design of geological exploration plans, and reservoir evaluation relies on obtaining information about reservoir lithology. With the deep integration of geophysical exploration technology and artificial intelligence, the use of artificial intelligence technology provides great convenience for complex and diverse geophysical exploration sites. Based on the support vector machine (SVM) method in machine learning, this paper uses actual well logging data from a gas well in the Sichuan Basin to train the algorithm and classify reservoir lithology in oil and gas development. The application of the support vector machine method in reservoir lithology is less explored. This paper effectively trains the support vector machine model with a large amount of well logging data and focuses on the influence of the C value and gamma value in support vector machines on classification accuracy. By optimizing the C and gamma values in support vector machines, the classification accuracy was improved from 0.63 to 0.75, effectively improving the convergence speed and optimization accuracy of the Sichuan Basin reservoir lithology identification algorithm. The successful application of the support vector machine in the classification of reservoir lithology in the Sichuan Basin demonstrates the significant cost reduction and efficiency improvement significance of artificial intelligence technology in geophysical exploration. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Support vector machines

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共78页 << < 5 6 7 8 9 10 11 12 13 14 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：