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12,302 Results Found

  • Article
  • Open Access
4 Citations
2,268 Views
16 Pages

Configuration of Non-Pumping Reactive Wells Considering Minimum Well Spacing

  • Ja-Young Goo,
  • Jae-Hyun Kim,
  • Young Jae Lee and
  • Soonjae Lee

2 December 2021

A non-pumping reactive well (NPRW) is a subsurface structure that prevents contaminant spread using many non-pumping wells containing reactive media. For the construction of an effective NPRW, a sufficiently small spacing between wells is an importan...

  • Article
  • Open Access
61 Views
22 Pages

Seismic Dynamic Response of Adjacent Oil Well Casings: Effect of Inter-Well Spacing

  • Minjing Chen,
  • Wei Lu,
  • Yanjun He,
  • Keyu Duan,
  • Zilong Li,
  • Yang Liu and
  • Zhan Qu

22 January 2026

With the intensive development of oil and gas fields, multi-well layouts with reduced inter-well spacing are increasingly adopted to improve production efficiency. Such configurations, however, may significantly enhance seismic interaction among adja...

  • Article
  • Open Access
5 Citations
3,418 Views
24 Pages

21 December 2020

Recently, a flow-cell model (FCM) was specifically developed to quickly generate physics-based forecasts of production rates and estimated ultimate resources (EURs) for infill wells, as the basis for the estimation of proven undeveloped reserves. Suc...

  • Article
  • Open Access
528 Views
17 Pages

Influence of Well Spacing on Polymer Driving in E Reservoir of Daqing Oilfield

  • Yanchang Su,
  • Jiantao Du,
  • Hongnan Li,
  • Yao Zhou,
  • Zhiyu Wei,
  • Wenbo Zhao,
  • Zhiqiang Wang and
  • Yanfu Pi

24 October 2025

The E reservoir in Daqing Oilfield exhibits strong heterogeneity, resulting in inconsistent performance of conventional development methods. Polymer flooding is currently implemented using 106 m and 150 m well patterns. To characterize the influence...

  • Article
  • Open Access
7 Citations
4,000 Views
21 Pages

Effect of Complex Natural Fractures on Economic Well Spacing Optimization in Shale Gas Reservoir with Gas-Water Two-Phase Flow

  • Cheng Chang,
  • Yongming Li,
  • Xiaoping Li,
  • Chuxi Liu,
  • Mauricio Fiallos-Torres and
  • Wei Yu

3 June 2020

At present, investigation of the effects of natural fractures on optimal well spacing of shale gas reservoirs from an economic perspective has been lacking. Traditional frameworks of fracture characterization, such as local grid refinement, make it u...

  • Article
  • Open Access
4 Citations
1,436 Views
23 Pages

27 March 2025

Optimizing well spacing is crucial for enhancing the production efficiency and economic returns of tight oil development. The limited understanding of hydraulic fracture geometry and properties poses significant challenges in designing well spacing f...

  • Article
  • Open Access
1 Citations
826 Views
23 Pages

5 August 2025

Shandong Province is rich in geothermal resources, mainly stored in sandstone reservoirs. The setting of reasonable well spacing in the early stage of large-scale recharge has not attracted enough attention. The problem of small well spacing in geoth...

  • Article
  • Open Access
21 Citations
3,419 Views
22 Pages

Numerical Investigation on Shape Optimization of Small-Spacing Twin-Well for Salt Cavern Gas Storage in Ultra-Deep Formation

  • Haitao Li,
  • Jingen Deng,
  • Qiqi Wanyan,
  • Yongcun Feng,
  • Arnaud Regis Kamgue Lenwoue,
  • Chao Luo and
  • Cheng Hui

15 May 2021

Small-spacing twin-well (SSTW) salt caverns have an extensive application prospect in thin or bedded rock salt formations due to their good performance, while they are rarely used in ultra-deep formations. The target strata depth of Pingdingshan salt...

  • Article
  • Open Access
1 Citations
1,625 Views
17 Pages

Production Decline Analysis of Tight Conglomerate Reservoirs with Small Well Spacing, Based on the Fractal Characteristics of Fracture Networks

  • Xiaoshan Li,
  • Junqiang Song,
  • Hong Pan,
  • Kaifang Gu,
  • Shuo Wang,
  • Liu Yang,
  • Haoyu You,
  • Li Wang,
  • Xin Wang and
  • Guanxing Luo
  • + 2 authors

11 November 2022

The conglomerate matrix and fracture propagation are special in tight conglomerate reservoir with small well spacing. In this article, the fractal propagation characteristics of the fracture network in conglomerate reservoirs are described by experim...

  • Article
  • Open Access
1 Citations
1,054 Views
20 Pages

24 January 2025

The small-spacing dual-well (SSDW) technique plays a crucial role in the establishment of underground salt cavern gas storage reservoirs. However, during the cavity dissolution and brine discharge processes, insoluble sediment is prone to being carri...

  • Article
  • Open Access
198 Citations
20,732 Views
14 Pages

Urban Green Space Perception and Its Contribution to Well-Being

  • Gyula Kothencz,
  • Ronald Kolcsár,
  • Pablo Cabrera-Barona and
  • Péter Szilassi

Individual perceptions are essential when evaluating the well-being benefits from urban green spaces. This study predicted the influence of perceived green space characteristics in the city of Szeged, Hungary, on two well-being variables: the green s...

  • Article
  • Open Access
7 Citations
4,533 Views
27 Pages

In recent years, well-being has become an increasingly important consideration integrated with functional aspects in the design of educational spaces due to its significant impact on the built environment. Although the features of educational spaces...

  • Review
  • Open Access
66 Citations
12,804 Views
29 Pages

A growing number of articles have identified and reported the benefits and importance of urban green spaces for improving human well-being, but there is a significant knowledge gap regarding the impact of urban green spaces on the subjective well-bei...

  • Review
  • Open Access
186 Citations
27,897 Views
26 Pages

The Association between Green Space and Adolescents’ Mental Well-Being: A Systematic Review

  • Yijun Zhang,
  • Suzanne Mavoa,
  • Jinfeng Zhao,
  • Deborah Raphael and
  • Melody Smith

This systematic review summarised and evaluated the evidence for associations between green space and adolescents’ mental well-being. The PRISMA statement guidelines were followed for reporting systematic reviews. Fourteen articles met the incl...

  • Article
  • Open Access
166 Citations
30,599 Views
13 Pages

Active and Passive Use of Green Space, Health, and Well-Being amongst University Students

  • Elizabeth W. Holt,
  • Quinn K. Lombard,
  • Noelle Best,
  • Sara Smiley-Smith and
  • John E. Quinn

Frequent exposure to green space has been linked to positive health and well-being in varying populations. Yet, there is still limited research exploring the restorative benefits associated with differing types of green space use among students livin...

  • Review
  • Open Access
9 Citations
5,762 Views
31 Pages

29 August 2024

As the global population ages, improving health statuses and quality of life has become crucial. Healing spaces enhance older adults’ (OA) physical and mental health and well-being. However, the current research status and development trends mu...

  • Article
  • Open Access
3 Citations
2,960 Views
19 Pages

The Impact of Physical/Natural Spaces on the Mental and Emotional Well-Being of Students According to the Report of Rural Female Teachers

  • Gerardo Fuentes-Vilugrón,
  • Felipe Caamaño-Navarrete,
  • Enrique Riquelme-Mella,
  • Ingrid Godoy Rojas,
  • Esteban Saavedra-Vallejos,
  • Pablo del Val Martín,
  • Flavio Muñoz-Troncoso and
  • Carlos Arriagada-Hernández

In rural schools, nature is a space where teachers and students seek to feel states of emotional well-being. Activities carried out in contact with nature could be considered ideal for learning. The objective of the research was to explore the influe...

  • Review
  • Open Access
16 Citations
7,012 Views
31 Pages

17 March 2023

Proximity and access to urban green spaces (UGSs) provide city dwellers with multiple benefits related to health and well-being. Understanding what (and how) characteristics of these spaces affect individuals’ perceived preferences and sense of...

  • Article
  • Open Access
7 Citations
6,012 Views
23 Pages

The issues related to the urban environment and mental well-being have become increasingly important in recent decades. Although this association has been mainly investigated in developed countries, there is limited knowledge on whether similar resul...

  • Article
  • Open Access
28 Citations
5,179 Views
12 Pages

16 December 2020

It is generally agreed that green space has a positive effect on the health and well-being of urban residents. A number of papers have studied the relationship between green space and various sociodemographic characteristics; however, little is known...

  • Article
  • Open Access
2 Citations
1,842 Views
25 Pages

From Research to Design: Enhancing Mental Well-Being Through Quality Public Green Spaces in Beirut

  • Mariam Raad,
  • Georgio Kallas,
  • Falah Assadi,
  • Nina Zeidan,
  • Victoria Dawalibi and
  • Alessio Russo

29 July 2025

The global rise in urban-related health issues poses significant challenges to public health, particularly in cities facing socio-economic crises. In Lebanon, 70% of the population is experiencing financial hardship, and healthcare costs have surged...

  • Article
  • Open Access
1,115 Views
16 Pages

2 May 2025

Major public health events pose a huge challenge to the sustainable improvement of city dwellers’ ecological well-being, hindering the achievement of urban ecological construction goals. In the context of resilient city and all-aged friendly ci...

  • Article
  • Open Access
1 Citations
3,652 Views
26 Pages

16 August 2024

The correlation between health and well-being, outdoor activity, and the natural environment in learning environments has been recognised by pioneers like Samuel Wilderspin and modern theorists like Maria Montessori, who have underscored the importan...

  • Article
  • Open Access
2 Citations
3,449 Views
22 Pages

28 August 2023

Retaining their ancestral footprint, rural settlements anchored developments driven by suburbanisation and became small towns embedded in the generic metropolitan landscape in the late 20th century. In subsequent phases, they integrated the functiona...

  • Article
  • Open Access
6 Citations
2,253 Views
17 Pages

24 June 2022

Multi-well hydrofracturing is an important technology for forming complex fracture networks and increasing reservoir permeability. The distribution and design of horizontal wells affect fracture propagation; however, it is still unclear how the spaci...

  • Article
  • Open Access
58 Citations
11,339 Views
25 Pages

2 August 2019

Exposure to green spaces can reduce the negative effects of stress. This study examines how frequency of visits and time spent in urban green spaces (UGS) affect urban dwellers’ subjective well-being. We also investigated the numbers of respond...

  • Article
  • Open Access
3 Citations
2,472 Views
12 Pages

14 January 2022

We consider the Cauchy problem of the three-dimensional primitive equations of geophysics. By using the Littlewood–Paley decomposition theory and Fourier localization technique, we prove the global well-posedness for the Cauchy problem with the...

  • Article
  • Open Access
9 Citations
3,781 Views
15 Pages

Urban green spaces have a positive impact on citizens’ mental health and have contributed to improving their quality of life during the COVID-19 pandemic. In South Korea, where more than 50% of all households live in apartments, apartment-compl...

  • Article
  • Open Access
13 Citations
2,805 Views
16 Pages

Well-Posedness and Time Regularity for a System of Modified Korteweg-de Vries-Type Equations in Analytic Gevrey Spaces

  • Aissa Boukarou,
  • Kaddour Guerbati,
  • Khaled Zennir,
  • Sultan Alodhaibi and
  • Salem Alkhalaf

Studies of modified Korteweg-de Vries-type equations are of considerable mathematical interest due to the importance of their applications in various branches of mechanics and physics. In this article, using trilinear estimate in Bourgain spaces, we...

  • Article
  • Open Access
7 Citations
4,902 Views
19 Pages

14 April 2021

Public open spaces services have been shown to be profoundly affected by rapid urbanization and environmental changes, and in turn, they have influenced socio-cultural relationships and human well-being. However, the impact of these changes on public...

  • Article
  • Open Access
6 Citations
7,808 Views
24 Pages

22 September 2024

Urban green spaces are crucial for alleviating psychological stress, but the effect of multi-sensory experiences on psychological restoration remains underexplored. This study, conducted in Edinburgh, Scotland, with 40 participants, compares the effe...

  • Article
  • Open Access
24 Citations
5,669 Views
16 Pages

This quantitative study examines the effects of Public Open Space (POS) on older people’s well-being and examines the roles of neighborhood social cohesion (NSC) and place dependence (PD) as series buffers. A questionnaire survey of 501 people...

  • Article
  • Open Access
10 Citations
1,777 Views
14 Pages

Ulam–Hyers Stability and Well-Posedness of Fixed Point Problems in C*-Algebra Valued Bipolar b-Metric Spaces

  • Manoj Kumar,
  • Pankaj Kumar,
  • Ali Mutlu,
  • Rajagopalan Ramaswamy,
  • Ola A. Ashour Abdelnaby and
  • Stojan Radenović

16 May 2023

Here, we shall introduce the new notion of C*-algebra valued bipolar b-metric spaces as a generalization of usual metric spaces, C*-algebra valued metric space, b-metric spaces. In the above-mentioned spaces, we shall define (αAψA) c...

  • Article
  • Open Access
1 Citations
1,607 Views
18 Pages

1 April 2022

In this paper, we establish the local well-posedness for a two-component Novikov system in the sense of Hadamard in critical Besov spaces Bp,11+1p(R)×Bp,11+1p(R),1p<. We first provide a uniform bound for the approximate solutions...

  • Article
  • Open Access
6 Citations
3,049 Views
13 Pages

The objective of this study was to examine the relationships of participants’ home characteristics (living space) and job prospects after the coronavirus disease 2019 (COVID-19) pandemic to their subjective psychological well-being (SWB) (in terms of...

  • Article
  • Open Access
5 Citations
1,902 Views
26 Pages

29 May 2025

Urban ecological recreational space (UERS), as essential provider of ecosystem services, play a crucial role in enhancing human well-being. Nevertheless, limited research has investigated how various types of human–nature interaction influence...

  • Article
  • Open Access
4 Citations
2,124 Views
24 Pages

26 August 2024

Understanding the response of the ecological well–being to ecosystem services of urban green space is imperative for urban ecosystem conservation and management. However, few studies have focused on the response process and spatial relationship...

  • Article
  • Open Access
2 Citations
2,524 Views
23 Pages

1 May 2024

In this research, the influence of confined space size on the temperature distribution characteristics of internal window plumes from well-ventilated compartment fires was studied. Theoretical analysis was firstly used to establish a mathematical mod...

  • Article
  • Open Access
42 Citations
10,465 Views
20 Pages

19 February 2021

In this experiment, we operated within the novel research area of Informal Green Spaces (often called green wastelands), exploring emotional well-being with the employment of portable electroencephalography (EEG) devices. The apparatus (commercial EE...

  • Article
  • Open Access
13 Citations
2,619 Views
13 Pages

28 February 2021

In this paper, we consider the generalized porous medium equation. For small initial data u0 belonging to the Fourier-Besov-Morrey spaces with variable exponent, we obtain the global well-posedness results of generalized porous medium equation by usi...

  • Article
  • Open Access
5 Citations
2,946 Views
22 Pages

5 December 2023

In order to improve the shale oil production rate and save fracturing costs, based on dynamic production data, a production-oriented optimization method for fracture spacing of multi-stage fractured horizontal wells is proposed in this study. First,...

  • Article
  • Open Access
1,156 Views
25 Pages

6 November 2025

The limited capacity of urban green spaces to equitably satisfy the well-being needs of populations in urbanized areas is a global challenge. However, research on the spatial mismatch between green space equity and residents’ subjective well-be...

  • Systematic Review
  • Open Access
5 Citations
6,747 Views
25 Pages

The Role of Blue Space in Enhancing Mental Health and Well-Being Among Older Adults: A Systematic Review

  • Jing Guan,
  • Sumarni Binti Ismail,
  • Sarah Abdulkareem Salih,
  • Wan Srihani Wan Mohamed and
  • Norhuzailin Binti Hussain

21 April 2025

With the aging global population, understanding the role of blue space (BS) in supporting older adults’ mental health is increasingly important. This systematic review synthesizes quantitative and qualitative evidence to examine how BS influenc...

  • Article
  • Open Access
11 Citations
3,609 Views
27 Pages

27 July 2022

Studies related to oil and gas wells have attracted worldwide interest due to the increasing energy shortfall and the requirement of sustainable development and environmental protection. However, the state of oil and gas wells in terms of research ch...

  • Article
  • Open Access
449 Views
38 Pages

4 January 2026

The issue of children’s mental health is becoming increasingly prominent worldwide. Research indicates that insufficient physical activity constitutes a significant risk factor for various health issues. As primary school campuses serve as the...

  • Article
  • Open Access
9 Citations
3,169 Views
24 Pages

1 August 2020

In order to account for big uncertainties such as well interferences, hydraulic and natural fractures’ properties and matrix properties in shale gas reservoirs, it is paramount to develop a robust and efficient approach for well spacing optimiz...

  • Article
  • Open Access
7 Citations
5,401 Views
27 Pages

24 March 2020

This paper advances a practical tool for production forecasting, using a 2-segment Decline Curve Analysis (DCA) method, based on an analytical flow-cell model for multi-stage fractured shale wells. The flow-cell model uses a type well and can forecas...

  • Article
  • Open Access
13 Citations
4,854 Views
16 Pages

10 March 2019

The influence of complex natural fractures on multiple shale-gas well performance with varying well spacing is poorly understood. It is difficult to apply the traditional local grid refinement with structured or unstructured gridding techniques to ac...

  • Article
  • Open Access
4 Citations
3,328 Views
24 Pages

17 March 2025

Improving the equity of urban public green space is crucial for residents’ well-being and is a key objective in green space planning. While most existing studies focus primarily on the spatial distribution characteristics of green space resourc...

  • Article
  • Open Access
946 Views
19 Pages

26 October 2025

Urban green spaces have emerged as a key outdoor natural space supporting social interaction since the pandemic and lockdowns, and particularly benefit the health and well-being of the elderly and children amid global population aging. However, the c...

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