scholarly journals Perspectives for use of hydraulic fracturing in oil and gas production

2014 ◽  
Vol 67 (4) ◽  
pp. 373-378 ◽  
Author(s):  
Carlos Mouallem ◽  
Wilson Trigueiro de Sousa ◽  
Ivo Eyer Cabral ◽  
Adilson Curi
Keyword(s):  
Hydraulic Fracturing ◽  
Environmental Impacts ◽  
Groundwater Level ◽  
Oil And Gas ◽  
Gas Production ◽  
Gas Extraction ◽  
Oil And Gas Production ◽  
High Productivity ◽  
Oil Exploitation ◽  
The World

Hydraulic fracturing emerges currently, all over the world, as one of the more strategic techniques used by companies in the oil exploitation sector. This technique is characterized by its high productivity and profit in relation to conventional methods of hydrocarbon exploitation. However, in many countries, as is the case of Brazil, there are several divergences considering the employment of this methodology. Many renowned researchers attest that there are several irreversible environmental impacts generated by the use of this methodology. Among the main environmental impacts are the risk of groundwater level contamination, the risk of surface subsidence, and the risk of the environment contamination with fluids used in the process of the oil and gas extraction.

Simultaneous Hydraulic Fracturing Improves Completion Efficiency and Lowers Costs Per Foot

2021 ◽  
Author(s):  
David Russell ◽  
Price Stark ◽  
Sean Owens ◽  
Awais Navaiz ◽  
Russell Lockman
Keyword(s):  
Hydraulic Fracturing ◽  
Oil And Gas ◽  
Horizontal Wells ◽  
Asset Returns ◽  
Gas Production ◽  
Well Performance ◽  
Additional Time ◽  
Oil And Gas Production ◽  
Single Well ◽  
Lateral Length

Abstract Reducing well costs in unconventional development while maintaining or improving production continues to be important to the success of operators. Generally, the primary drivers for oil and gas production are treatment fluid volume, proppant mass, and the number of stages or intervals along the well. Increasing these variables typically results in increased costs, causing additional time and complexity to complete these larger designs. Simultaneously completing two wells using the same volumes, rates, and number of stages as for any previous single well, allows for more lateral length or volume completed per day. This paper presents the necessary developments and outcomes of a completion technique utilizing a single hydraulic fracturing spread to simultaneously stimulate two or more horizontal wells. The goal of this technique is to increase operational efficiency, lower completion cost, and reduce the time from permitting a well to production of that well—without negatively impacting the primary drivers of well performance. To date this technique has been successfully performed in both the Bakken and Permian basins in more than 200 wells, proving its success can translate to other unconventional fields and operations. Ultimately, over 200 wells were successfully completed simultaneously, resulting in a 45% increase in completion speed and significant decrease in completion costs, while still maintaining equivalent well performance. This type of simultaneous completion scenario continues to be implemented and improved upon to improve asset returns.

scholarly journals Aspects of sustainable development of industry in Kazakhstan

2019 ◽  
Vol 135 ◽  
pp. 04043
Author(s):  
Svetlana Faizullina ◽  
Ainur Isaeva ◽  
Lailya Matkarimova ◽  
Aigul Zhuzbaeva
Keyword(s):  
Sustainable Development ◽  
Oil And Gas ◽  
Economic Benefits ◽  
Gas Production ◽  
Health Impacts ◽  
Energy Market ◽  
Global Energy ◽  
Oil And Gas Production ◽  
World Energy ◽  
The World

This article discusses the economic benefits of uranium mining, as well as its environmental and health impacts. Sustainable development includes several aspects: energy, water, the environment, food and the economy, and ensuring each of these aspects is a serious problem. Energy is at the center of other aspects of sustainability, as it has a direct relationship with water, food, and the environment. Uranium is Kazakhstan’s top priority in the global energy market. In the world, there are different opinions on the development of uranium production, increasing the value of atomic energy. Apparently, this should be preceded by a crisis in the field of oil and gas production in recent years, in connection with which the world energy market should have a diversified course depending on various energy sources. Kazakhstan is a country rich in uranium. In addition, over the years of independence, we have increased production almost four times and maintain leadership in the world. Therefore, uranium production is the most important advantage of our global energy space today.

scholarly journals Comment on “The intensification of the water footprint of hydraulic fracturing”

2020 ◽  
Vol 6 (8) ◽  
pp. eaav2110
Author(s):  
Daniel Raimi
Keyword(s):  
Hydraulic Fracturing ◽  
Water Consumption ◽  
Energy Production ◽  
Oil And Gas ◽  
Water Footprint ◽  
Gas Production ◽  
Permian Basin ◽  
Oil And Gas Production ◽  
Oil And Natural Gas ◽  
Water Intensity

Kondash et al. provide a valuable contribution to our understanding of water consumption and wastewater production from oil and gas production using hydraulic fracturing. Unfortunately, their claim that the water intensity of energy production using hydraulic fracturing has increased in all regions is incorrect. More comprehensive data show that, while the water intensity of production may have increased in regions such as the Permian basin, it has decreased by 74% in the Marcellus and by 19% in the Eagle Ford region. This error likely stems from an improper method for estimating energy production from wells: The authors use the median well to represent regional production, which systematically underestimates aggregate production volumes. Across all regions, aggregate data suggest that the water intensity of oil and natural gas production using hydraulic fracturing has increased by 19%. There also appears to be an error in estimates for water consumption in the Permian basin.

Theoretical Aspects of the Economic Security of the Oil and Gas Sector of the Russian Federation

2017 ◽  
Vol 6 (3) ◽  
pp. 41-47
Author(s):  
Н. Козырь ◽  
N. Kozyr' ◽  
В. Коваленко ◽  
V. Kovalenko
Keyword(s):  
Russian Federation ◽  
Energy Security ◽  
Oil And Gas ◽  
Economic Security ◽  
Gas Production ◽  
Geological Exploration ◽  
Oil And Gas Production ◽  
The World ◽  
The Russian Federation ◽  
Oil And Gas Sector

The article explored and described the theoretical bases of economic safety in the oil and gas sector: the concept, relationship with energy security, potential and real threats, and the measure and evaluation stages. The analysis of the main indicators of the oil and gas sector of the Russian Federation was conducted, and recommendations were proposed for eliminating threats to economic security. The priority tasks assigned to the oil and gas complex of the Russian Federation as the main locomotive of the national economy of the state are highlighted in the work. In addition, possible ways to increase the efficiency of geological exploration and oil and gas production in Russia are identified. Conclusions are drawn about the world community’s lack of development of theoretical aspects of economic security in the oil and gas sector, identified key problems of this sector and the main directions for the future study of the issue; The concept of economic security of the oil and gas complex was proposed.

RADIOECOLOGICAL IMPACT AND THE ASSOCIATED HAZARDS DUE TO NORM FROM OIL AND GAS PRODUCTION FACILITY IN THE WESTERN DESERT OF EGYPT

2020 ◽  
Vol 190 (2) ◽  
pp. 165-175
Author(s):  
Yasser Y Ebaid ◽  
Yasser Hassan ◽  
Wael M Elshemey
Keyword(s):  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Western Desert ◽  
Production Facility ◽  
Energy Agency ◽  
Radium Isotopes ◽  
Oil And Gas Production ◽  
The World ◽  
Effective Doses

Abstract An oil and gas production facility in the western desert of Egypt was investigated for possible radiation risks due to the routine operation. Radium-226, Radium-228 and Potassium-40 were assessed in the soil samples collected from the adjacent soakaway pond. The average 226Ra, 228Ra and 40K activity concentrations were 881.0 ± 42.0, 966.0 ± 43.0 and 143.0 ± 8.0 Bq kg−1, respectively. Both 226Ra and 228Ra were above the world ranges, while 40K was within the world range. Water samples from the facilities effluent’s produced water showed elevated levels of both radium isotopes. The effective doses at three different points on the separator outer surfaces over the period between 1995 and 2014 were assessed. The maximum reading was 5.4 μSv h−1 on 2014. The time has significantly contributed to the enhancement of the effective dose readings. However, they are still within the expected range encountered in similar studies reported by International Atomic Energy Agency (IAEA).

scholarly journals GEOGRAPHICAL ASPECTS OF ARTIFICIAL ISLAND CREATION

2021 ◽  
Author(s):  
А.Н. Иванов ◽  
Ю.А. Кобзева
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Infrastructure Development ◽  
Restriction Factors ◽  
Oil And Gas Production ◽  
Economical Efficiency ◽  
The World ◽  
History Of ◽  
Port Infrastructure ◽  
Modern Technologies

Кратко рассмотрена история создания искусственных островов в мире и в России. Проанализированы задачи, возлагаемые на искусственные острова, существующие технологии их строительства. Особое внимание уделено экологическим проблемам, возникающим при строительстве и эксплуатации островов. Сделан вывод о том, что в настоящее время в России наиболее перспективно создание искусственных островов для развития транспортной и портовой инфраструктуры, нефтегазодобыче на морском шельфе. Разработанные в настоящее время технологии позволяют создавать искусственные острова в самых разных природных условиях. Лимитирующими факторами являются рентабельность и возникающие при строительстве и эксплуатации экологические проблемы. The article provides brief review for history of artificial islands creation in Russia and around the world. It includes analysis of tasks assigned to artificial islands and existing technologies of their creation. Special attention is focused on ecological questions arising during their construction and maintenance. The article concludes that the most actual artificial islands are constructed for transport and port infrastructure development and oil and gas production on the shelf. Modern technologies allow creation of artificial islands in different nature conditions. Economical efficiency and ecological questions are restriction factors for artificial islands creation and maintenance.

Experimental Study on the Wall Factor for Rod-Shaped Proppant Settling in Vertical Fracture

2020 ◽  
Author(s):  
Zhaopeng Zhu ◽  
Xianzhi Song ◽  
Xuezhe Yao ◽  
Shuo Zhu ◽  
Silin Jing
Keyword(s):  
Reynolds Number ◽  
Hydraulic Fracturing ◽  
High Speed ◽  
Oil And Gas ◽  
Prediction Models ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Transport Distance ◽  
Fracture Closure ◽  
Settling Process

Abstract Hydraulic fracturing is an important technology to improve oil and gas production. In recent years, rod-shaped proppant has received increasing attention for its advantages in avoiding fracture closure and enhancing conductivity. Due to its special shape, the settling process in the fracture is more complicated than that of a spherical proppant. Accurate description of the wall factor of fracture on the settling rod-shaped proppant is pivotal in predicting the transport distance of rod-shaped proppant and improving the effect of fracturing. However, few researches have been reported about the fracture wall factor on the settling rod-shaped proppant. In this study, the transparent fracture model with different width and a high-speed camera were used to record the settling process of the rod-shaped proppant in the fracture. A total of 215 tests were carried out to analyze the effects of fluid properties, the equivalent dimensionless diameter, sphericity, and Reynolds number on the wall factor, involving the ranges of the equivalent dimensionless diameter and the particle Reynolds number are 0.03 to 1.47 and 0.03–1354.14, respectively. The settling processes of rod-shaped proppant under horizontal and vertical states were studied, and two wall factor models for the two states were established, respectively. The results show that the wall factor is a function of both the equivalent dimensionless diameter and Reynolds number. Finally, the prediction models of wall factor with the prediction error of 1.70 and 4.44% are established for these two Reynolds number regions, respectively. The results of this study can further improve the performance of rod-shaped proppant in hydraulic fracturing.

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