Analysis of the main factors affecting bottom hole assembly Re-entry into main hole in forward drilling of fishbone wells

Fan, Yu; Huang, Genlu; Ni, Hongjian; Nie, Zhen; Li, Wei; Li, Jing; Jiang, Wu

doi:10.1016/j.petrol.2020.107018

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…Aspects such as the number, length, and angle of inclination of the micro-boreholes, as well as the spacing between their kickoff points, are crucial, as shown in Figure 1. Unlike conventional multilateral wells which originate from a primary vertical borehole, fishbone wells extend from multilateral wells connected to the well's lateral portion [4].…”

Section: Introductionmentioning

confidence: 99%

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A Comprehensive Review of Fishbone Well Applications in Conventional and Renewable Energy Systems in the Path towards Net Zero

Ndulue,

Tomomewo,

Khalifa

2023

Fuels

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Fishbone drilling (FbD) involves drilling multiple micro-holes branching out in various directions from the primary vertical or deviated wellbore. FbD is similar to multilateral micro-hole drilling and can be employed to boost hydrocarbon production in naturally fractured formations or during refracturing operations by connecting existing natural fractures. Key design elements in fishbones include determining the number, length, and spacing between the branches, and the angle at which the branches deviate from the main borehole. Fishbone wells have emerged as a promising technology for improving well performance and reducing environmental impact. In this paper, we present a comprehensive review of the different applications of fishbone wells in conventional and renewable energy systems. We discuss the potential of fishbone wells for enhanced oil and gas recovery, as well as their application in unconventional resources such as coal bed methane. Moreover, we examine the feasibility of fishbone wells in renewable energy systems, such as geothermal energy and carbon capture, utilization, and storage (CCUS). We highlight the various benefits of fishbone wells, including reduced carbon footprint, enhanced efficiency, and increased sustainability. Finally, we discuss the challenges and limitations associated with fishbone wells in different energy systems. This review provides a comprehensive overview of the potential and challenges of fishbone wells in reducing carbon footprint and improving well performance in a wide range of energy systems.

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Section: Introductionmentioning

confidence: 99%

“…multilateral wells which originate from a primary vertical borehole, fishbone wells extend from multilateral wells connected to the well's lateral portion [4]. Drilling in fractured zones, especially in unconventional reservoirs with high natural fracture densities (known as sweet spots), can enhance production.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of Fishbone Well Applications in Conventional and Renewable Energy Systems in the Path towards Net Zero

Ndulue,

Tomomewo,

Khalifa

2023

Fuels

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“… 1 − 3 Moreover, previous studies indicate that the fishbone well has obvious advantages in enhanced oil recovery (EOR) and wide market prospects. 4 , 5 …”

Section: Introductionmentioning

confidence: 99%

“…Compared with the conventional horizontal well, the fishbone well, with multilateral wellbores and increased reservoir drainage area, has high potential for enhancing oil production in the oilfield. Because its branches increase the contact area between the wellbore and oil formation and make it easier for oil to enter the wellbore or for fluids to be injected into the reservoir. − Moreover, previous studies indicate that the fishbone well has obvious advantages in enhanced oil recovery (EOR) and wide market prospects. , …”

Section: Introductionmentioning

confidence: 99%

“…1−3 Moreover, previous studies indicate that the fishbone well has obvious advantages in enhanced oil recovery (EOR) and wide market prospects. 4,5 The fishbone well has been approved as an effective technology for EOR of heavy oil, conventional reservoir in thin layers, and tight oil. 3,6 However, the efficiency of some fishbone wells is too low to make the process economical.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Distribution Characteristics of Oil and Water during Water Flooding in a Fishbone Well with Different Branch Angles

et al. 2022

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Lab experiments, field pilots, and numerical modeling focusing on fluid flow aspects have indicated that multi-branch wells are technically effective and promising. Several researchers have conducted some experiments for a fishbone well strategy with mixed results. Our objective in this work is to study the impact of the different fishbone well patterns, such as branch angle, on the distribution of remaining oil after water flooding. In this paper, the interference effect between branches on oil recovery is studied in three steps. First, the interferences between fishbone wells with different branch angles were measured by hydro-electric simulation experiments. Second, two-dimensional visualization water flooding experiments were carried out to clarify the remaining oil distribution at different branch angles. Third, the distribution of oil and water in fishbone wells was verified by establishing a numerical model. The modeling results agree well with the experimental phenomena. At the same time, the variation trend of water and oil production in each branch is analyzed by numerical simulation results. The results indicate that the production is strongly dependent on the branch angles, and the highest recovery was 60.2% at a 45° branch angle.

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Method of Suspender Line Horizontal Well Trajectory Design and Its Applicable Conditions

Fan

et al. 2023

Springer Series in Geomechanics and Geoengineering

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Analysis of the main factors affecting bottom hole assembly Re-entry into main hole in forward drilling of fishbone wells

Cited by 14 publications

References 6 publications

A Comprehensive Review of Fishbone Well Applications in Conventional and Renewable Energy Systems in the Path towards Net Zero

A Comprehensive Review of Fishbone Well Applications in Conventional and Renewable Energy Systems in the Path towards Net Zero

Dynamic Distribution Characteristics of Oil and Water during Water Flooding in a Fishbone Well with Different Branch Angles

Method of Suspender Line Horizontal Well Trajectory Design and Its Applicable Conditions

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