检索结果-内蒙古大学图书馆

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 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

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

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

An Artificial Intelligence Algorithm for the real-Time Early detection of Sticking Phenomena in Horizontal Shale Gas Wells

引用

Fluid dynamics & Materials Processing 2023年第10期19卷 2569-2578页

作者： Qing Wang Haige Wang Hongchun Huang Lubin Zhuo Guodong Ji CNPC Engineering Technology R&D Company Limited Planning and Support InstituteBeijing102206China

Sticking is the most serious cause of failure in complex drilling *** the present work a novel“early warning”method based on an artiﬁcial intelligence algorithm is proposed to overcome some of the known pro-blems associated with existing sticking-identiﬁcation *** method is tested against a practical case study(Southern Sichuan shale gas drilling operations).It is shown that the twelve sets of sticking fault diagnostic results obtained from a simulation are all consistent with the actual downhole state;furthermore,the results from four groups of veriﬁcation samples are also consistent with the actual downhole *** shows that the pro-posed training-based model can effectively be applied to practical situations.

关键词： Shale gas drilling sticking fault artificial intelligence risk early warning technology

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

AdLM-LWd: Adaptive deep Learning Model for Lithology Identification from Logging- While-drilling data with Online Learning Mechanism

ADLM-LWD: Adaptive Deep Learning Model for Lithology Identif...

引用

2024 International Conference on New Trends in Computational Intelligence, NTCI 2024

作者： Zhao, Ziyun Lin, Wang Jing, Lingzhi Tian, Yumeng Guo, Weihong CNPC Engineering and Technology R&D Company Limited Beijing102206 China

ISBN: (纸本)9798331517021

Accurate lithology identification from Logging-While-drilling (LWd) data is crucial for optimizing drilling operations and enhancing reservoir characterization in the oil and gas industry. However, the lack of standardized datasets and the need for real-time adaptability in varying geological environments pose significant challenges. This study addresses these issues through three key contributions. First, a comprehensive dataset for lithology identification is constructed, combining LWd features with corresponding lithology labels, providing a valuable resource for deep learning applications in this field. Second, a novel deep learning model is proposed, integrating 2d convolution and bidirectional LSTM to effectively capture both spatial and temporal features of LWd data. The model demonstrates high stability and performance across various metrics in extensive cross-validation tests. Lastly, an Adaptive Incremental Learning Algorithm (AILA) is introduced, incorporating online learning mechanisms and dynamic adaptation strategies to enhance the model's real-time adaptability. These advancements contribute to more accurate and adaptive lithology identification systems, which potentially improve real-time decision-making in drilling operations and lead to more efficient and cost-effective exploration and production processes. © 2024 IEEE.

关键词： Gas industry

来源：评论

学校读者我要写书评

暂无评论

Prediction of Horizontal and Vertical distribution Trend of Formation Pressure and Characteristics of Safety density Window in Yinggehai Basin 29th

Prediction of Horizontal and Vertical Distribution Trend of ...

引用

29th International Conference on Computational and Experimental engineering and Sciences, ICCES 2023

作者： Gao, reyu Cui, Yi Fan, Jinzhao Yang, Guang Yang, Hongwei CNPC Engineering Technology R&D Company Limited Beijing102206 China

ISBN: (纸本)9783031429866

The formation pressure system of Yinggehai Basin has the characteristics of poor horizontal distribution regularity and severe vertical distribution changes. This paper proposes a new method for predicting the horizontal and vertical distribution trend of formation pressure for the situation of limited offshore drilling data. The method is based on the topological triangulation algorithm, combined with the data set to fit the multivariate interpolation function, and conveniently realizes the prediction and visualization of the three-dimensional horizontal and vertical distribution trend of regional formation pressure. On this basis, through the analysis of the relevant data of the complex accident points that have been drilled, the characteristics of the single well safety density window and the regional safety density window are clarified. The study found that there is no high pressure in the shallow layer of the block, and the formation pressure spreads smoothly in the lateral direction;the high pressure top surface is at 3500 m, and the formation pressure gradually increases with the increase in longitude and decrease in latitude in the lateral direction. The formation pressure rises extremely rapidly with the increase of depth in the longitudinal direction, which has the characteristic of "broken line pressurization". The safety density window of single well is in the shape of funnel with the characteristic of turning back, and the turning section is between 3500 and 4000 m. The safety density window feature of the block can be divided into three stages according to the depth, and the window appears extremely narrow after 3500 m (3). © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Forecasting

来源：评论

学校读者我要写书评

暂无评论

Collision Mechanism of Marine drilling riser and Internal String in deep-water drilling 34th

Collision Mechanism of Marine Drilling Riser and Internal St...

引用

34th International Ocean and Polar engineering Conference, ISOPE 2024

作者： Zhang, Minghe Cui, Longlian Wang, Haige Yang, Jin Yang, Guobin Zhang, Guobin Liu, Qi Kong, Lulin Sun, Ke Jia, Wanting CNPC Engineering Technology R&D Company Limited China Beijing China

ISBN: (纸本)9781880653784

due to the complex marine environment loads, large horizontal deflection of marine risers, and contact and collision between risers and internal pipe strings will occur during drilling string installation and drilling process, resulting in drilling string wear and deformation, which brings great challenges to deep-water drilling. Based on the pipe-in-pipe model, the static analysis model of the whole process of contact and collision between riser and internal drilling string is established, and the contact modes of riser and internal drilling string are classified. The sensitivity analysis of key mechanical parameters, such as water depth, platform offset, environmental loads, and riser top tension was also carried out. The numerical simulation method is used to show the contact and collision between risers and internal pipe strings, and the control method for risers and internal string collision under different water depth conditions is proposed. © 2024 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： Marine risers

来源：评论

学校读者我要写书评

暂无评论

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：

请选择收藏分类：

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

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：