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All Journal TEKNIK Jurnal Ilmiah MTG Info-Teknik Jurnal Geocelebes JOURNAL OF EARTH ENERGY ENGINEERING JST ( Jurnal Sains Terapan ) JURNAL PENDIDIKAN TAMBUSAI AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Jurnal Teknosains Kodepena (Kodepena Journal of Technoscience) Jurnal Teknosains Kodepena (Kodepena Journal of Technoscience) CITIZEN: Jurnal Ilmiah Mulitidisiplin Indonesia Teknika Al-MIKRAJ: Jurnal studi Islam dan Humaniora Journal Of Human And Education (JAHE) Journal of Comprehensive Science Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Indonesian Research Journal on Education Petrogas : Journal of Energy and Technology
Rohima Sera Afifah
Sekolah Tinggi Teknologi Migas
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : info-teknik

 1 
KAJIAN MATERIAL SEDIMEN PANTAI BALIKPAPAN UNTUK MENGETAHUI VARIASI UKURAN BUTIR PARTIKEL PASIR (SAND) SEDIMEN Rohima Sera Afifah; Karmila Karmila; Nuruddin Kafy El-Ridlo
INFO-TEKNIK Vol 22, No 2 (2021): INFOTEKNIK VOL. 22 NO. 2 DESEMBER 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v22i2.12391

Abstract

Along the Balikpapan Beach, there are abundant sand-sized sediment particles. Sand is one of the unconsolidated sediment grains based on fractions on the Wentworth Scale. Unconsolidated Sediment is defined as Loose Material and/or sedimentary rocks that is not yet solid. Balikpapan Beach, based on the Regional Geological Map of Balikpapan sheet, formed the Alluvium Formation (abbreviated as Qa) of the Holocene Epoch, Quaternary. Alluvium formation (Qa) has an arrangement of rocks in the form of pebbles, gravel, sand, and clay. Samples of Unconsolidated Sediment or loose material and sedimentary rocks that is not yet solid are determined for grain size variations using the Sieving method. The Seiving method or Sieve Test is a method for determining the size of the grains which will then be viewed on a scale and followed by the amount of grain size data that will be presented in graphical form to facilitate the type of grain size that dominates. The research focused on how the grain size on Balikpapan Beach based on the Wentworth Scale and Sorting data after the Sieve Test. Sieve Test results measured Mesh#10, Mesh#20, Mesh#40, Mesh#60, Mesh#120, Mesh#200 and Filter Analysis of the relationship between Filter Diameter and Retained Percentage as follows: Granule by 3.53%, Sand (Very Coarse Sand by 3.53%, Coarse Sand by 4.75%, Medium Sand by 13.26%, Fine Sand by 66.26%, Very Fine Sand by 5.15%) and Coarse Silt by 3.35%. Therefore, particles in the area of research with the Sieve Test were dominated by Fine Sand particles. Fine Sand with grain size 0.125 – 0.25 mm tested with a filter diameter of 0.125 mm got a Retained Weight of 331.29 gr, Retained Weight Precentage of 66.26%.
Hidrogeologi daerah BRG berdasarkan kondisi hidrologi untuk mengetahui prediksi kesetimbangan Airtanah (Groundwater) Rohima Sera Afifah
INFO-TEKNIK Vol 23, No 1 (2022): INFOTEKNIK VOL. 23 NO. 1 JULI 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v23i1.13959

Abstract

The rapid increase in groundwater exploitation in various sectors in Indonesia has caused preparations in the form of concrete steps that must be faced, especially reducing the impacts caused. The BRG area is an area known as an area in Geological Conditions the existence of intrusions that may result in retained groundwater flows and are productively small and even rare and in addition to that also in terms of environmental conditions of areas surrounded by large industries in the amount of very large groundwater use. Groundwater intake activities impacted the drawdown of groundwater levels. This study in cased the Water Balance conditions of the BRG area groundwater. This study employs hydrology variable to determine groundwater balance. Variables of Rainfall (CH in mm/yr), Evapotranspiration (ET in mm/yr), Infiltration (R in mm/yr) and Run Off (RO in mm/yr). Balance of Groundwater is based on a general formula of Capacity (S). Capacity (S) is directly proportional to Rainfall (CH) as Inflow and Total amount of Evapotranspiration (ET), Infiltration (R) and Run Off (RO) as Outflow. The study revealed that the inflow and outflow of water in BRG area are balanced. The results of the Hydrological Variables of the study area are as follows: Rainfall (CH) is of 8302 mm/yr average value, Evapotranspiration (ET) is of 2726,6 mm/yr average value, Infiltration (R) is of 2,02 x 107 mm/yr and Run off (Ro) 1316,3 mm/yr. The result of Groundwater Water balance is a negative value (Inflow < Outflow). Hydrological calculations decreased in each year for the last 4 years the observation data showed the negative values were getting greater, as follows: (a) the first year -4.01 x 107, (b) the second year -5.63 x 107, (c) the third year -3.10 x 107, (d) the fourth year -4.72 x 107.
Geologi Untuk Mengetahui Satuan dan Sebaran Jenis Litologi Endapan Material Lepas Sungai Daerah Sungai “KLG” Afifah, Rohima Sera
INFO-TEKNIK Vol 24, No 2 (2023): INFOTEKNIK VOL. 24 NO. 2 DESEMBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i2.17741

Abstract

The Alluvium Formation of the Upper Fluvial "KLG" area is a fluvial alluvial deposit in the form of pebbles - granule of andesite and basalt grain size. The lithology unit is a Fluvial Alluvial that includes the Fluvial Plain and Fluvial Body. The diversity of grain sizes is due to the influence of the Sedimentological process. The sedimentological process begins with the rocks being and or being uplifted to the surface undergoing weathering, transport time / transport distance, resistance and crystal shape. The type of fluvial sediment material is divided into 2 (two) parts, namely: 1) the upstream part of the fluvial, generally in the form of coarse-sized alluvial deposits including the size of boulders, pebbles, granule, and sand, 2) the downstream part of the fluvial, generally in the form of finer-sized deposits. The research focused on geological studies with a lithological unit approach to the Upper Fluvial "KLG" area. The research aimed to determine the lithological unit of the Upper Fluvial "KLG" area and the distribution of grain size of unconsolidated sediment in the Upper Fluvial "KLG" of study area. The research method was carried out with 3 (three) methods, namely: a) Descriptive Method, by means of literature study, b) Survey Method, by means of factual information in the research area, with the stages of Field Observation including: Observation of geological appearances including outcrops, recording, sampling and recording field data in the Upper Fluvial "KLG", c) Analysis Methods include: Petrology and Sieve Analysis. Research results showed that The Geomorpholgy was Fluvial Alluvial plain. The Formation area was Alluvial Formation with unconsolidated sediment fluvial lithology. The grain sizes of Unconsolidated sediment were boulders, pebbles, granule and sand. Keywords: Alluvial Formation, Fluvial, Unconsolidated Sediment
EVALUASI KEEKONOMIAN KERJA ULANG PINDAH LAPISAN DENGAN METODE PERFORASI SUMUR PRODUKSI Susilo, Arya Cahya; Afifah, Rohima Sera; Randanan, Eltimeyansi Chrisye; Willard, Karnila; Sulardi, Sulardi
INFO-TEKNIK Vol 21, No 2 (2020): INFOTEKNIK VOL. 21 NO. 2 DESEMBER 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i2.10052

Abstract

The problem is that there is no certainty about the production capacity of the wells before evaluating the performance of production wells. The research objective was to describe the condition of oil and gas reserves in production wells and an economic picture of the MBR production resources after the recovery period by moving layers using the perforation method. This study used a used research method with a case study approach, namely the case that occurred in the MBR production well of PT. Medco E&P Tarakan operation area. The results of the evaluation of production capacity after displacement recovery based on the analysis of logging data at a depth of 850 MZ, it is known that the initial oil reserves (OOIP) are 284,304 STB with a recovery factor of 25%. The results of the calculation of the economic indicator for the proposed perforation of work to move layers, the total value of NPV. 15% was obtained in the eighth month in total lifting of 28,466, namely USD 123.561, the payout time for this work was 1.8 months with an IRR of 340% indicating that investment has the potential to provide benefits.
PONDASI BALIK KOTAK DITANAH LUNAK Sulardi, Sulardi; Widodo, Pria Agung; Suprayitno, Abdi; Ryka, Hamriani; Afifah, Rohima Sera; Waskita, Kukuh Jalu
INFO-TEKNIK Vol 21, No 2 (2020): INFOTEKNIK VOL. 21 NO. 2 DESEMBER 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i2.10051

Abstract

The problem is the difficulty in determining the type and method of manufacture and installation of foundation on soft soils. The research objective is to provide an overview of the type of foundation, the method of manufacture and the method of installation of the foundation which is suitable and suitable in the soft soil environment. This research method uses used research methods with trial and error, and with a case study approach method, namely the case of difficulties in overcoming the problem of the availability of permanent structural support foundations and refinery operation equipment on soft soil. The results showed that the type and shape of the foundation that is suitable and to solve the problem is the foundation behind the box. This foundation specification is an inverted box with reinforced concrete material and certain dimensions with cover plates. The results of this used research also show that the inverted box type of foundation is suitable for supporting equipment supporting refinery operations such as pipe supports and other refinery operation equipment.
Co-Authors Ain Sahara Amang, Reza Saputra Amiruddin Amiruddin Amiruddin Amiruddin Amiruddin Ammiruddin, Ammiruddin Andi Jumardi Andi Jumardi Arief Adhiksana Arintalofa, Vithya Battu, Desianto Payung Belo, Janet Jalisar Charles Pangaribuan Della Endangtri Deny Fatryanto Deny Fatryanto Edyzoh Eko Widodo Dharma Arung Laby Diba, Affikah Fara Dicky Setiawan Sirait Dimas Putra Wibowo Fatma Fatma Finansa , Dody Firdaus Firdaus Firdaus Firdaus Firdaus Fitri Oktafiani Halim , Andry Herry Setiawan Iin Darmiyati Ikhsan Adevita Irma Andrianti Jamaluddin Jamaluddin Karmila Karmila Karmila Karmila karmila karmila Kurmaselia, Aprilino Alfa Kurniawan, Teddy Kurniawan, Yudha Dwi Laby, Dharma Arung Lalu, Lalu Artila Igha Anggara Lumbaa, Markus Luthfiyah Atisa Fadhilah M. Nur Mukmin M. Rizal Faahrun Manik, Nijosiho Manik, Nijusiho Maria Maria Martinus Leo Andani Mirza Mirza Mohammad Lutfi Mohammad Luthfi Muhammad Adnan Muhammad Aldi, Muhammad Mukmin, M Nur Mukmin, M. Nur Mukmin, Muhammad Nur Mustagina, Amanda Nijusiho Manik Nur, Dennis Ramdhan Nuruddin Kafy El-Ridlo Nurul Awaliyah Paindan, Esterina Natalia Pasarrin, Yonatan Rumpang Patanduk, Beth Alfine Prada, Charlis Andika Pratama Bagus Restu.S Purba, Chris Leonardi R.Bambang Wicaksono Rachmasari Pramita Wardhani Rahman, Khairul Rahman, Muhammad Safa Rahmawati , Selvy Dwi Ramadhan, Muhammad Fauzi Randanan, Eltimeyansi Chrisye Randanan, Eltimeyansi Crisye Rante, Wandi Allo Refiyanto, Andra Agustin Restu, Pratama Bagus Risna Risna Risna Risna, Risna Rizky Kurniawan Rohani, Adelia Rombe, Ripal RR. Ella Evrita Hestiandari Ryka, Hamriani Sayen Girsang Sulardi . Suprayitno, Abdi Surdaryo Broto Susilo, Arya Cahya Susilo, Dedy Syaifa Luttha Hanora Teddy Kurniawan Tryana, Aris Luqman Tryna, Aris Luqman Ulfah, Baiq Maulinda Ummul Haq Vely Remitha Viola Sri Wahyuni Wahyu, Rafi Waskita, Kukuh Jalu Widodo, Deny Fatryanto Edyzoh Eko Widodo, Pria Agung Willard, Karnila Yohanes, Yandri Yudiaryono Yudiaryono Yuniarti , Yuniarti Yuniarti Yuniarti Zavta Rizki