scholarly journals Dynamic Knowledge Graph Based Construction of Quality Infrastructure System for Non-API Oil Country Tubular Goods

2021 ◽  
Vol 2101 (1) ◽  
pp. 012041
Author(s):  
Xiangpeng Chen ◽  
Juntai Xie ◽  
Jianmin Gao ◽  
Rongxi Wang ◽  
Jiandong Jiang

Abstract With the deep exploitation of oil and gas resources, the non-API oil country tubular goods (OCTG) adapted to specific environments are used widely. Therefore, how to effectively characterize the quality connotation of non-API OCTG to ensure their quality has become a challenge for the petroleum industry. We propose a dynamic knowledge graph of Quality Infrastructure (QI) to solve the problems of the diversity of non-API OCTG quality influencing factors, the concealment of the relationship, and the ambiguity of the mechanism of quality improvement. Firstly, a knowledge graph ontology framework of quality infrastructure is constructed, which realizes the effective combination of product characteristics and quality basic elements. Secondly, based on the professional dictionary in the field of OCTG, entity recognition adopts the entity recognition method of LDA-BiLSTM-CRF, which effectively improves the recognition accuracy of professional vocabulary. Finally, the relationship between entity types is defined as the edge of the knowledge graph; the graph embedding method is used to supplement the edge connection and calculation weight of the knowledge graph. The QI knowledge graph constructed with this technology can well describe the quality connotation of non-API OCTG, and provide opinions and methods for guaranteeing and improving the quality of non-API OCTG.

Information ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 186 ◽  
Author(s):  
Shuang Liu ◽  
Hui Yang ◽  
Jiayi Li ◽  
Simon Kolmanič

The domestic population has paid increasing attention to ancient Chinese history and culture with the continuous improvement of people’s living standards, the rapid economic growth, and the rapid advancement of information science and technology. The use of information technology has been proven to promote the spread and development of historical culture, and it is becoming a necessary means to promote our traditional culture. This paper will build a knowledge graph of ancient Chinese history and culture in order to facilitate the public to more quickly and accurately understand the relevant knowledge of ancient Chinese history and culture. The construction process is as follows: firstly, use crawler technology to obtain text and table data related to ancient history and culture on Baidu Encyclopedia (similar to Wikipedia) and ancient Chinese history and culture related pages. Among them, the crawler technology crawls the semi-structured data in the information box (InfoBox) in the Baidu Encyclopedia to directly construct the triples required for the knowledge graph, crawls the introductory text information of the entries in Baidu Encyclopedia, and specialized historical and cultural websites (history Chunqiu.com, On History.com) to extract unstructured entities and relationships. Secondly, entity recognition and relationship extraction are performed on an unstructured text. The entity recognition part uses the Bidirectional Long Short-Term Memory-Convolutional Neural Networks-Conditions Random Field (BiLSTM-CNN-CRF) model for entity extraction. The relationship extraction between entities is performed by using the open source tool DeepKE (information extraction tool with language recognition ability developed by Zhejiang University) to extract the relationships between entities. After obtaining the entity and the relationship between the entities, supplement it with the triple data that were constructed from the semi-structured data in the existing knowledge base and Baidu Encyclopedia information box. Subsequently, the ontology construction and the quality evaluation of the entire constructed knowledge graph are performed to form the final knowledge graph of ancient Chinese history and culture.


2020 ◽  
Vol 8 (5) ◽  
pp. 3-8
Author(s):  
T. Danilova

The article considers a teacher as a subject of monitoring the professional readiness of future workers in the oil and gas industry, who has pedagogical subjectivity in its implementation. This quality of personality is characterized in the context of the teacher's monitoring competence. The structure of pedagogical subjectivity is determined by the features of professional readiness of workers in the oil and gas industry and its monitoring. It involves the relationship of theoretical, technological, and personal components. The article presents the results of a ascertaining experiment that established insufficient formation of structural components of pedagogical subjectivity in monitoring. The expediency of correcting the identified problem aspects and related professional development of teachers to monitor the professional readiness of future workers in the oil and gas industry is justified. It is assumed that the problem of their formation is characterized by industry specifics and is implemented by means of additional professional education.


2020 ◽  
pp. 81-93
Author(s):  
D. V. Shalyapin ◽  
D. L. Bakirov ◽  
M. M. Fattakhov ◽  
A. D. Shalyapina ◽  
A. V. Melekhov ◽  
...  

The article is devoted to the quality of well casing at the Pyakyakhinskoye oil and gas condensate field. The issue of improving the quality of well casing is associated with many problems, for example, a large amount of work on finding the relationship between laboratory studies and actual data from the field; the difficulty of finding logically determined relationships between the parameters and the final quality of well casing. The text gives valuable information on a new approach to assessing the impact of various parameters, based on a mathematical apparatus that excludes subjective expert assessments, which in the future will allow applying this method to deposits with different rock and geological conditions. We propose using the principles of mathematical processing of large data sets applying neural networks trained to predict the characteristics of the quality of well casing (continuity of contact of cement with the rock and with the casing). Taking into account the previously identified factors, we developed solutions to improve the tightness of the well casing and the adhesion of cement to the limiting surfaces.


2021 ◽  
pp. 41-44
Author(s):  
Anatolii MOSPAN ◽  
Tetiana TIMCHENKO

Development of the country’s economy, industrial and economic infrastructure is impossible without the use of oil and gas, as well as their products. Ukraine does not fully meet its own needs for fuel and energy resources. An important role in the solving of this issue belongs to geophysical research methods, their integrated complex and the types of geological and geophysical researches. In many cases, the materials of geophysical research methods are the main ones with respect to the geological documentation of wells that were drilled for the search and exploration of productive reservoirs. Domestic oil and gas service companies need government support to increase quality of geological and geophysical services, updating the equipment fleet, and ground equipment, introducing modern technologies to enable the development of equal competition with foreign companies both in the domestic and global markets.   


Author(s):  
Ike Egboga ◽  
Gift Worlu

<p>This study sought to examine the relationship between project risk avoidance and project execution in the Nigerian oil and gas industry. Specifically, the study examined the relationship between project risk avoidance and four components of project execution (budget, quality, schedule and scope) among 51 oil and gas companies operating in Rivers State, Nigeria. To achieve this objective, 102 managing executives were given questionnaires, with 82 questionnaires correctly filled and returned. Data obtained were analysed using mean scores and Spearman’s rank order correlation analysis. The study found that projects risk avoidance was positively and significantly related to all four components of project execution. The main implication of this finding is that oil and gas companies need to invest heavily in innovative technologies and processes that will enhance their ability to avoid risk, thus improving the quality of projects they execute.</p><p> </p><p><em><strong>Abstrak dalam Bahasa Indonesia.</strong>Studi ini berusaha untuk menguji hubungan antara proyek penghindaran risiko dan eksekusi proyek di industri minyak dan gas Nigeria. Secara spesifik, studi tersebut meneliti hubungan antara proyek penghindaran risiko dan empat komponen eksekusi proyek (anggaran, kualitas, jadwal dan ruang lingkup) di antara 51 perusahaan minyak dan gas yang beroperasi di Negara Bagian Rivers, Nigeria. Untuk mencapai tujuan ini, 102 eksekutif pelaksana diberikan kuesioner, dengan 82 kuesioner diisi dan dikembalikan dengan benar. Data yang diperoleh dianalisis menggunakan skor rata-rata dan analisis korelasi urutan peringkat Spearman. Studi tersebut menemukan bahwa penghindaran risiko proyek berhubungan positif dan signifikan dengan keempat komponen pelaksanaan proyek. Implikasi utama dari temuan ini adalah bahwa perusahaan minyak dan gas perlu berinvestasi besar-besaran dalam teknologi dan proses inovatif yang akan meningkatkan kemampuan mereka untuk menghindari risiko, sehingga meningkatkan kualitas proyek yang mereka jalankan.</em></p>


2020 ◽  
Vol 60 (2) ◽  
pp. 569
Author(s):  
Kenneth Wee

Exploring for, and discovering, new oil and gas resources is essential to an oil and gas company’s ability to replenish and enhance its reserves base. With rising future demand for clean, sustainable and affordable energy sources and the important role and contribution of the Australian petroleum industry in the evolving global energy mix, continual investment in exploration activity will be the key to unlocking the prospectivity of undeveloped acreage, particularly in frontier areas. However, exploration is inherently risky and costly. Companies constantly compete for scarce capital to provide the necessary funding to undertake exploration activities. Financial capacity underwrites the ability to bid for exploration acreage by offering commensurate work program commitments. For junior explorers in the early exploration stage, liquidity constraints can mean that the covenants, collateral security requirements and periodic servicing obligations associated with raising debt financing are prohibitive. Equity investors, on the other hand, typically demand a higher return on capital. A fresh policy approach to encouraging petroleum exploration in Australia should be considered by government to incentivise the providers of equity capital to risk money for exploration ventures. This paper considers three models that are used internationally: (1) flow-through shares, (2) worthless stock deductions and (3) notional interest deductions for equity financing. This paper provides a comparative in-principle analysis of each model and offers some suggestions on how these models may be adapted to an Australian context and embedded into the existing taxation system.


2016 ◽  
Author(s):  
K. Mosto Onuoha ◽  
Chidozie I. Dim

ABSTRACT The boom in the development of unconventional petroleum resources, particularly shale gas in the United States of America during the last decade has had far reaching implications for energy markets across the world and particularly for Nigeria, a country that traditionally has been Africa&rsquo;s leading crude oil producer and exporter. The Cretaceous Anambra Basin is currently the only inland basin in Nigeria where the existence of commercial quantities of oil and gas has been proven (outside the Tertiary Niger Delta Basin). The possibility of similarly finding commercially viable resources of unconventional petroleum resources in the basin appears quite attractive on the basis of the existence of seepages of shale oil and presence of coal-bed methane in some of the coal seams of the Mamu Formation (Lower Coal Measures) in the basin. This paper presents the results of our preliminary assessment of the shale oil and gas resources of the Anambra Basin. Our main objective is to locate the zones of very high quality plays within the basin, focusing on their depositional environments (whether marine or non-marine), areal extent of the target shale formations, gross shale intervals, total organic content, and thermal maturity. Data on the total organic content (TOC %, by weight) and thermal maturity of shales from different wells in the basin show that many of the shales have high TOCs (i.e greater than 2%) comparable to known shale gas and shale oil plays globally. Shale oil seepages are known to occur around Lokpanta in south-eastern Nigeria, but there is a general predominance of gas-prone facies in our inland basins indicating good prospects for finding unconventional petroleum in this and other Nigerian inland sedimentary basins. The main challenge to the exploration of unconventional resources in Nigeria today has to do with the absence of the enabling laws and regulatory framework governing their exploration and subsequent exploitation. The revised Petroleum Industry Bill (PIB) currently under consideration in the National Assembly is expected to introduce drastic and lasting changes in the way the petroleum industry business is conducted in the country, but all the provisions of the draft law pertain mainly to conventional oil and gas resources.


Author(s):  
Djakhongir Saidov

This chapter investigates the main sources governing international oil and gas operations around the world, with a view to examining whether we are witnessing the emergence of transnational petroleum law (lex petrolea). The chapter explores the nature of governance in the petroleum industry and the extent to which the oil and gas industry is self-governed or governed by the state-made law. It assesses the degree of standardization of governance to determine whether it is so high as to give rise to the emergence of lex petrolea. The main focus is on sources, specific to the oil and gas industry, such as: model contracts, industry usages, standards, and guidelines promulgated by industry organizations and associations. This chapter argues that lex petrolea is not yet a mature legal order. Its sources are best characterized as transnational layers of governance of the international exploration and production operations. As to the relationship between the alleged lex petrolea and the state-made law, it is demonstrated that the two are vitally important to and mutually dependent on each other.


1994 ◽  
Vol 34 (2) ◽  
pp. 174
Author(s):  
Frank M. Hooke

The judgement of the High Court of Australia in 1992 in Mabo v. Queensland has had a major impact on land law in Australia.The Native Titles Act, 1993, is the first of what will be many steps in a long, complex legislative program to integrate 'native title', into Australia's land law.Those drafting the Native Title Act seemed to have concentrated on dealing with 'native title' issues in isolation and to have ignored or put to one side the need for it to mesh with other aspects of land law. This has created uncertainty for many users of land and will require review.Although the contrary was intended, the Act creates, in practical terms, significant uncertainty for renewal of existing oil and gas exploration and production titles. It also has implications for applicants for new titles and in due course for farmouts and assignments.Eventually additional legislation will be required to clarify the relationship of native title with the other areas of land law.


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