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INTAN Jurnal Penelitian Tambang
Published by Universitas Papua
ISSN : 26553473     EISSN : 27232727     DOI : https://doi.org/10.56139/intan.v4i2.85
Core Subject : Economy, Science, Engineering,
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering
Fokus dan lingkup Jurnal INTAN adalah Pertambangan baik dalam pengelolaan dan pengusahaan mineral atau batubara yang meliputi eksplorasi, konstruksi, penambangan, pengolahan dan/atau pemurnian atau pengembangan dan/atau pemanfaatan, pengangkutan dan penjualan, kegiatan reklamasi dan pascatambang, kebijakan-kebijakan ekonomi, lingkungan, dan sosial di bidang pertambangan mineral dan batubara. Jadi Jurnal Intan merupakan media untuk menyalurkan pemahaman tentang aspek-aspek sains, teknologi, ekonomi, sosial dan lingkungan dari dunia pertambangan berupa hasil penelitian lapangan atau laboratorium maupun studi pustaka.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 124 Documents
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ANALISA BERAT BEBAN HOISTING SYSTEM PADA OPERASI KERJA ULANG DAN PERBAIKAN SUMUR DI LAPANGAN ‘Y’ Yehezkiel Kalapain; Leonardo Davinci Massolo
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.112 KB) | DOI: 10.56139/intan.v5i1.107

Abstract

Workover and well service (WOWS) is a set of operations related to the restoration of production well. On an Onshore Field “Y” there are several wells which currently ineffective in producing oil. Therefore, WOWS is needed to increase oil production. In performing WOWS there are several required systems to support operation such as the hoisting system. Calculating the total weight of the hoisting system requires estimation of vertical weight, horizontal weight, drilling line tension, and the required horsepower to overcome the total weight carried by the rig structure. These elements determine the rig types and draw work specifications. Furthermore, recognizing the hoisting system's ability on holding the WOWS string’s weight. Based on the calculation and analysis, the elements such as vertical weight, etc., are obtained. The calculated vertical weight is around 69,911 lbs., horizontal weight 619.43 lbs., drilling line tension 32,007 lbs., and the minimum required horsepower 297.88 Hp. This parameter sums up the total weight as 134,546 lbs. The results suggest that the rig tower is still safe and operable considering the maximum weight of the structure is double the total operating weight, around 264,554.4 lbs.
STUDI PENGARUH KADAR AIR DAN POROSITAS TERHADAP NILAI KUAT TEKAN UNIAKSIAL BATU ANDESIT DI SAOKA SORONG PROVINSI PAPUA BARAT Fanila Oktafia A. Kemon; Karmila Laitupa
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.525 KB) | DOI: 10.56139/intan.v5i1.108

Abstract

Rock physical properties such as water content and porosity affect mechanical properties such as the compressive strength value or rock strength value. This parameter is an input parameter for geotechnical or structural design purposes. To understand the effect of water content and porosity on the rock's compressive strength a laboratory test is needed. Rock samples are taken in the form of lumps and then prepared and tested according to predetermined standards. The result is a decrease in water content and a porosity results in an increase in the compressive strength. Based on the correlation value of the original water content = 0.061, saturated water content = 0.001, and porosity = 0.408, it shows a weak influence or relationship. This is due to the water content and porosity having a coefficient of determination or R2 value of less than 0.6.
GEOMORFOLOGI DAN KARAKTERISTIK NIKEL LATERIT DI DESA BAINGKETE DISTRIK MAKBON KABUPATEN SORONG PROVINSI PAPUA BARAT Meriana Harahap; Eka Novitasari
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.147

Abstract

Nickel deposits geologically came from weathering of abducted ultrabasic igneous rock. The rock is exposed during removal, followed by a geomorphological process that develops laterazation. Geologically the Makbon area is on the path of the Sorong horizontal fault field which has been active since the beginning of the Miocene. The dominant Sorong fault movement to the west exposed ocean floor rocks including blocks of ultrabasic rock. To determine the mineralization of nickel laterite in the Makbon area, this study combines mapping and surface geological observation methods with XRF analysis in the laboratory. The results of the study are known that the research area is composed of six land formations, namely the Makbon Fault Block Ridge, Baingkete Fault Block Ridge, Bancuh Baingkete Hills, Baingkete Bald Mountain Bancuh Hills, Makbon Fault Structure Denudation Plain, and Dore Bay Hills. Geomorphological control of the distribution of laterite nickel on steep slopes produces a thin, thickened laterite layer on the topography of the ramps. The characteristics of laterite nickel deposits in Baingkete Village are Type A deposits (Mg-Ni Silicate), on serpentinite bedrock, which consist of laterite profiles of limonite zone, saprolite zone, and bedrock zone
RANCANGAN TEKNIS SISTEM PENYALIRAN TAMBANG PADA PENAMBANGAN BATUGAMPING DI UP. PARNO, DESA KARANGASEM, KECAMATAN PONJONG, KABUPATEN GUNUNGKIDUL, DAERAH ISTIMEWA YOGYAKARTA Raditya Mahardhika; Hartono; Inmarlinianto
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.148

Abstract

UP. Parno is a limestone mining company operating in Karangasem Village, Ponjong District, Gunungkidul Regency. UP. Parno has an IUP with an area of 5.7 hectares by implementing an open mining system (surface mining) with the quarry method. Surface mining affects the surface due to climate. When it rains, the falling rainwater can pool in the mining area and around the lower mining openings. If it is dry, no rainwater enters the mining area. Thus, an adequate mine drainage system design is needed. Water discharge is the main thing to determine a good mine drainage system design. Based on the results of the calculation of rainfall data from 2011 to 2020, it is known that the planned rainfall is 101.70 mm/day, and the rainfall intensity is 43.77 mm/hour with a five-year return period of rain. The purpose of making an open channel is to drain rainwater that enters the mining area and drain runoff so that the mine road does not stagnate. The designed open channel has dimensions of b = 1.50 m; B = 1.00 m; d = 0.60 m; h = 0.50 m; a = 0.60 m. Culverts function to drain water from open channels that cut off haul roads. The culverts required are made of smooth cement surface, with a diameter of 0.35 m. The water flowing by the open channel will go to the settling pond to be purified first before flowing into the river around the mining area. The settling pond is designed to consist of three compartments with an area of 264 m2 each and 666 m3 volume. Dredging of sediment in settling ponds must be carried out every 10 months and 13 days.
STUDI FASIES BATUBARA BERDASARKAN KARAKTERISTIK MACERAL PADA DAERAH KLASUAT, DISTRIK KLAYILI, KABUPATEN SORONG, PAPUA BARAT Restu Tandirerung; Max Santus
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.149

Abstract

This study aims to determine the characteristics of the coal maceral and the Klasuat coal facies which are included in the Klasaman Formation, Salawati Basin, West Papua of Upper Miocene - Pleistocene age. The characteristics of coal maceral can be identified using maceral analysis, vitrinite reflectance value analysis, interpretation of the depositional environment based on Diessel, and Lamberson and Calder diagrams. The methodology applied in this research attempts to expand the research of coal at the local scale in the Salawati Basin, and to determine variations in coal characteristics controlled by differences in the lateral depositional environment. Based on the results of facies reconstruction of the depositional environment using four parameters TPI (Tissue Preservation Index), GI (Gelification Index), GWI (Ground Water Index) and VI (Vegetation Index) and plotted in the Diessel and Calder diagrams, it is found that the Klasuat Coal Layer was deposited in the facies limnic depositional environment.
VALUASI SAHAM MENGGUNAKAN METODE PRICE TO EARNING RATIO PADA SAHAM SEKTOR PERTAMBANGAN YANG TERGABUNG DALAM IDX HIGH DEVIDEN 20 TAHUN 2019-2020 Risqi Perdana; Juanita Horman
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.150

Abstract

Stock valuation is an assessment of the fair price of a stock. Stock valuation is carried out to anticipate potential losses that will be received by investors. This study aims to determine the fair price of the stock and choose the appropriate stock to be used as an investment choice in the IDX High Devidend 20 Index stock. Stock price valuation is measured using the Price Earning Ratio (PER) approach. In conclusion, from the stock valuation results, it can be seen that ADRO, ITMG, and PTBA shares in 2019 were undervalued or cheap so the investment decision that can be taken is to buy shares in that year. In 2020 stocks with the code ADRO, ITMG, and PTBA are also still classified as undervalued so the investment decision that can be taken is to buy shares
PENGARUH EKSPOR DAN PRODUKSI TERHADAP HARGA BATUBARA INDONESIA PADA TAHUN 2018-2020 Daniel Situmeang; Arif Setiawan
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.151

Abstract

Coal is one of source of fossil fuels that can be utilized in several industries such as power plants, cement, metallurgy, and others. Coal is produced for sale both domestically to meet domestic demand and for sale abroad (export). The sale of coal is an interaction between demand and supply which will affect the price. The problem in this study is related to how much the impact of coal exports and production on the coal prices based on monthly data from 2018 to 2020. This study aims to estimate the magnitude of the influence of these two variables on coal prices. The method used in this research is a quantitative method with a multiple regression approach. The results of the regression analysis based on monthly data from 2018 to 2020 obtained explain that coal exports have a positive effect on coal prices by 0.100648%, which means that if there is an increase in coal exports it will affect price increases by 0.100648%. However, coal production has a negative effect on coal prices of 0.217319%, which means that if there is an increase in coal production it will affect a decrease in coal prices. The results of the statistical t-test explained that coal exports and production did not significantly affect coal prices. From these results it can be concluded that coal exports have a positive effect and coal production has a negative effect on coal prices, but not significantly.
PENGUJIAN SIFAT FISIK GABRO DAN SERPENTINIT DI SAOKA KOTA SORONG PROVINSI PAPUA BARAT Abraham Sengka; Karmila Laitupa
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.152

Abstract

Sorong City, especially in the Saoka area, has a hypothetical gabbro resource of 25,000,000 m3, and in the Rufei area it has a hypothetical serpentinite resource of 500,000 m3. but there is no test on the physical properties of the two rocks, so it is necessary to test the physical properties of gabbro and serpentine to determine the parameters of physical properties such as bulk density, specific gravity, water content, porosity, void ratio, and degree of saturation. The research method used is quantitative by taking samples at the research location and then conducting tests in the laboratory, the test results show the average physical properties of gabbro, namely original bulk weight = 3.09 gr/cm3, dry bulk weight = 3.01 gr/ cm3, saturated weight = 3.13 g/cm3, apperent specific gravity = 3.01, true specific gravity = 3.41, original water content = 2.55%, saturated water content = 3.91%, degree of saturation = 66.15%, porosity = 11.78%, void ratio = 0.13. Meanwhile, serpentinite has an average density of original = 2.57 gr/cm3, dry weight = 2.55 gr/cm3, saturated weight = 2.59 gr/cm3, apperent specific gravity = 2.55, true specific gravity = 2.67, original water content = 0.9%, saturated water content = 1.76%, degree of saturation = 48.19%, porosity = 4.46%, void ratio = 0.04.
ANALISIS PENGARUH KEMIRINGAN UPPER FACE TERHADAP KESTABILAN BLOK BAJI DI KUARI PENAMBANGAN ANDESIT SITE SOMOREJO, CV. GUNUNG MULIA, DESA SOMOREJO, KECAMATAN BAGELEN, KABUPATEN PURWOREJO, PROVINSI JAWA TENGAH Hendra Rezkie; Singgih Saptono
INTAN Jurnal Penelitian Tambang Vol. 5 No. 2 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v5i2.153

Abstract

CV. Gunung Mulia is a business entity engaged in the andesite mining industry. The mining area uses an open mining system (surface mining) with the quarry mining method. There were many landslides in the research location. After performing a kinematic analysis using the stereographic method, two discontinuity areas were found in the form of major and minor joints that form wedge blocks on the mining slope. In analyzing the stability of the wedge block, one of the important parameters required is the orientation of the upper face. The method used is limit equilibrum wedge method. Based on the research result, it was found that the orientation of the angle of the slope greatly affects the value of the factor of safety. The gentler the angle of the slope, the higher the safety factor. As a recommendation, it is hoped that the upper face angle will be leveled again so that it can increase the FK value, which is at least 7° with an FK value of 5.93
RECOMMENDED STUDY OF EXTINGUISHING METHODS BASED ON THE 1994 PETTIFER AND FOOKES CRITERIA APPROACH TO THE PLANNING OF THE TRANS-PAPUA WASIOR-NABIRE ROAD: STUDI REKOMENDASI METODE PENGGALIAN BERDASARKAN PENDEKATAN KRITERIA PETTIFER DAN FOOKES 1994 PADA PERENCANAAN RUAS JALAN TRANS PAPUA WASIOR-NABIRE Arif Setiawan; Sampary William Wakum; Ismiyati; Louis Hermanus Lamma
INTAN Jurnal Penelitian Tambang Vol. 6 No. 1 (2023): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v6i1.123

Abstract

The road is one of the traffic infrastructures for driving which supports all community activities. One of the stages of road construction is land clearing, in which one of the activities is eviction or excavation. The road construction location is the Trans Papua Wasior-Nabire road, Yamor District, Kaimana Regency, West Papua Province. However, the problem in this study is whether the excavation method is suitable for excavating material for road construction. Based on these problems, the purpose of this study is to recommend a method of excavation on the Trans Papua Wasior-Nabire road section. The method used is the Pettifer and Fookes (1994) criterion approach to determine the capability method. The results obtained with this approach indicate that the KM 501+500 excavation site is included in the level of easy digging capability or enters into a condition that is easy to dig. At the KM 502+100 excavation site, it is included in the hard digging capability level or a category that is difficult to dig because of the condition of the material which is difficult to dig, so the recommendation given is to use heavy equipment, namely a hydraulic excavator (backhoe) or a power shovel.

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