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Journal of Geoscience, Engineering, Environment, and Technology
Published by Universitas Islam Riau
ISSN : 2503216X     EISSN : 25415794     DOI : 10.25299
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science Physics
JGEET (Journal of Geoscience, Engineering, Environment and Technology) published the original research papers or reviews about the earth and planetary science, engineering, environment, and development of Technology related to geoscience. The objective of this journal is to disseminate the results of research and scientific studies which contribute to the understanding, development theories, and concepts of science and its application to the earth science or geoscience field. Terms of publishing the manuscript were never published or not being filed in other journals, manuscripts originating from local and International. JGEET (Journal of Geoscience, Engineering, Environment and Technology) managed by the Department of Geological Engineering, Faculty of Engineering, Universitas Islam Riau.
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Articles 551 Documents
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Front matter JGEET Vol 08 No 02 2023 JGEET (J. Geoscience Eng. Environ. Technol.)
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

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Back matter JGEET Vol 08 No 02 2023 JGEET (J. Geoscience Eng. Environ. Technol.)
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

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Front matter JGEET Vol 08 No 02-02 2023 Special Issue (J. Geoscience Eng. Environ. Technol.), JGEET
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 02-2 (2023): Special Issue from The 1st International Conference on Upstream Energy Techn
Publisher : UIR PRESS

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Geomorphology and Geology Studies Using Digital Elevation Model (DEM) Data In the Watershed Area of Kampar Regency, Riau Province Husnul Kausarian; Sandy Masdriyanto; Batara; Adi Suryadi; Muhammad Zainuddin Lubis
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 3 (2023): JGEET Vol 08 No 03 : September (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2023.8.3.14454

Abstract

This research was conducted in the area of ​​Kampar Regency, Riau Province .it was located at coordinates including 01° 00' 40" - 00° 27' 00" South Latitude and 100° 28' 30"- 101° 14' 30" East Longitude. The purpose of this study was to determine the geological condition of the watershed, and it was determined the geomorphological condition of the watershed, to determine the number of divisions of the watershed, to determine the relationship between the watershed and rainfall, to determine the geological and geomorphological relationship with the watershed in the study area. The method used starts from field sampling, core description, distribution analysis of geological data, geomorphology, watershed analysis, and analysis of rainfall. Based on the analysis of the distribution of geological data in the research area, there were 12 geological formations from the results of geological mapping, namely: the Sihapas Formation, the Telisa Formation, the bekasap formation, the Bahorok Formation, the Farmer Formation, the Manggala formation, the Talang Akar formation, the Telisa Atas formation, the Palembang Tengah formation, Basement, members of the Lower Palembang formation (Air Berakat), members of the Upper Palembang formation (Muara Enim). In subsurface geology there were 8 well points in the study area, 2 correlations were carried out, namely the 1st correlation between CR-04, CR-03, CR-01, CR-02, CR-08, and the 2nd correlation between CR-05, CR-06, CR- 07. Geomorphological conditions were divided into 4 namely lowland areas, low hill areas, hilly areas, and high hill areas. The watersheds in the research area were divided into 2 watersheds, namely the Kampar and Siak watersheds. Watershed rainfall observations in the study area for 5 years from 2015 – 2019 were located at 5 different stations, with fluctuating rainfall intensity
Geological Analysis for Slope Stability Using the Rock Structure Rating (RSR) Method and Atterberg Limit at Riau - West Sumatra Cross road Km 165 Harau Subdistrict, Lima puluh Kota Regency, West Sumatra Province Husnul Kausarian; Shaury Aldila; Batara; Dewandra Bagus Eka Putra; Fitri Mairizki
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2023.8.2.14459

Abstract

Stability on the slope was considered important for the safety of people who pass through the highway. Failure of slopes on highways can cause losses especially roads had an important role in community activities. The research was located on the Riau – West Sumatra Km 165. The purpose of this research was to find out treatment or mitigation that can be given to the research slope and know the soil classification based on the analysis Atterberg Limit. The research slope was divided into 3 parts using analytical Rock Structure Rating (RSR) method based on different slope conditions. And 1 part of the slope has become soil using the analytical method Atterberg Limit. Treatment or mitigation that can be given to the research slope, namely the use of rock shopandshotcrete based on the RSR diagram and the use of rock embankments to resist landslides.
The Effect of Vermicompost Fertilizer and Mutiara Npk 16:16:16 on the Growth and Production of Pakcoy Plant (Brassica Rapa L.) Antonio Carlos Dias Santos; Jose Guimaraes Fonseca; Diki Ramadhan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2023.8.2.14493

Abstract

The design used was a factorial complete randomized design (CRD), it consisted of 2 factors. The first factor was vermicompost fertilizer which consisted of 4 levels (0, 0.5, 1, 1.5 kg/plot) The second factor was NPK Mutiara 16:16:16 which consisted of 4 levels (0, 10, 20, 30 g /plots). The results showed that vermicompost fertilizer and NPK Mutiara 16:16:16 gave a significant interaction on plant height, number of leaves, harvest age, economic wet weight, dry weight of plants and root volume with the best treatment of castor fertilizer 1.5 kg/plot and giving Pearl NPK 16:16:16 20 g/plot (K3N2). The main effect of vermicompost fertilizer on parameters of harvest age with the best dose of vermicompost fertilizer 1.5 kg/plot (K3). The main effect of NPK Mutiara 16:16:16 on harvest age parameters with the best dose of NPK Mutiara 16:16:16 20 g/plot (N2).
The Effect of Sales Growth, Dividend Policy and Return on Assets on Debt Policy in Property and Real Estate Companies Listed on the Indonesia Stock Exchange in 2013 - 2017 Rajesh Chashmum; Deepanwita Jagravi; Jayanti Sari
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2023.8.2.14494

Abstract

The aim of this study was to examine and analyze the effect of Sales Growth, Dividend Policy and Return On Assets simultaneously and partially on Debt Policy in Property and Real Estate companies listed on the Indonesia Stock Exchange for the 2013–2017 period. The data analysis method used was multiple linear regression. The samples used in this study were 13 companies. The results of this study indicate that the variables Sales Growth, Dividend Policy and Return On Assets simultaneously have a significant effect on debt policy. Partially, Sales Growth and Dividend Policy have no significant effect on policy. Only Return On Assets has a significant effect on debt policy in property and real estate companies listed on the Indonesian stock exchange for the 2013-2017 period
Economic And Sensitivity Analysis Stimulation Of Coiled Tubing And Bullhead Combination On A Horizontal Well Adalard Dominique; Patrice Trey Xavier; Olliver Leo Sandre
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2023.8.2.14495

Abstract

Production decreased often occur in Indonesia's oil and gas fields which becomes a problem for oil well exploration. Thus the role of the company demands to be able to re-optimize the flow rate of oil production in the oil and gas field. One of the workover jobs was stimulation. The function of the work was to stimulate the wells mechanically and chemically which aimed to increase the productivity of wells that have experienced a decrease in oil production, in which mechanical stimulation was in the form of coiled tubing units and bullhead used chemical stimulation, namely acidizing and solvent. To prove the economy of the coiled tubing unit and bullhead stimulation work, calculations and analysis of economic indicators such as net present value (NPV), internal rate of return (IRR), and payout time (POT) can be carried out. Where this study aimed to determine the economics of the stimulation project carried out on the horizontal wells of the RD field. The results of the calculation of economic indicators that will be feasible are not like this stimulated workover work project with an investment of US$ 133,053 acidizing coiled ribbing oil price of 68.51 USS/bbl thus the calculation of NPV @ 10% 60631 USS, POT 0.74 months, P1 9, is obtained. 73, IRR 355%, coiled tubing solvent well US$ 185,967.166 NPV@ 10% 98,431 USS, POT 3.94 months, PI 3.69, IRR 103%, bullhead acidizing well US$ 8858.31 value NPV@10% 218029 USS, POT 0.95 months, P1 45.16, IRR 1890% and bullhead solvent USS 72745 value NPV@10% USS 248586, POT 0.94 months, PT 52.53, IRR 1822%. Sensitivity analysis on stimulated workover work is carried out by changing the assumptions with 85% and 115% then the results obtained are the oil price value which is the parameter that most influences the NPV value then oil production, and capex. From the results of profit indicator calculations and sensitivity analysis, it can be concluded that the stimulated workover work in the RD field is all feasible because it meets the eligibility requirements of a project.
Front matter JGEET Vol 08 No 03 2023 JGEET (J. Geoscience Eng. Environ. Technol.)
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 3 (2023): JGEET Vol 08 No 03 : September (2023)
Publisher : UIR PRESS

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Abstract

Back matter JGEET Vol 08 No 03 2023 JGEET (J. Geoscience Eng. Environ. Technol.)
Journal of Geoscience, Engineering, Environment, and Technology Vol. 8 No. 3 (2023): JGEET Vol 08 No 03 : September (2023)
Publisher : UIR PRESS

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Page 40 of 56 | Total Record : 551

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