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All Journal Physics Student Journal JOURNAL OF EARTH ENERGY ENGINEERING JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Teknik Mesin Jurnal Teknologi Sumberdaya Mineral Petro : Jurnal Ilmiah Teknik Perminyakan
Welayaturromadhona Welayaturromadhona
Program Studi Teknik Perminyakan, Fakultas Teknik, Universitas Jember
Automotive Engineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences

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Physical Analysis of Mount Talang – West Sumatera Activity Based on The Spectral Characteristics and Hypocenter Estimation of Volcanic Earthquakes Welayaturromadhona, Welayaturromadhona; Susilo, Adi; Triastuty, Hetty
Physics Student Journal Vol 1, No 1 (2013)
Publisher : Department of Physics - Faculty of Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Volcanic activity of Mount Talang – West Sumatera is very interesting to be studied and to be learned, because its activity was influenced by geological structures in the vicinity of Mount Talang which is a depression zone of Sumatera Fault. This study aimed to investigate the characteristics of volcanic earthquakes at Mount Talang in the period of January to March 2013 based on the spectral analysis and hypocenter analysis. In addition, the velocity estimation was carried out to determine the value of the corresponding seismic wave velocity in the vicinity of Mount Talang. Volcanic earthquake signals obtained from four seismic stations Gabuo,Ketah, Puncak and Kopi. The seismic signals are selected first and then grouped by the type of the earthquake. Spectral analysis is performed to determine the value of the dominant frequency and the cut-off frequency (corner frequency) of volcanic earthquakes. Hipocenter analysis aims to determine the hipocenter depth of vulcanic earthquake. Based on the spectral analysis, the frequency content of volcanic earthquakes ranged from 3.12 to 17.87 Hz. The high frequency content can be correlated with geological structures in the vicinity of Mount Talang which is in the form of cracks / faults as a manifestation of the Great Sumatera Fault zone. Based on a formula which is known before, it can be seen that the estimation of rupture length is ranged between 67 to 142 m. The hypocenter distribution of volcanic earthquakes ranged from 2 to 9 km below the summit of Mount Talang. Based on the results of seismic wave velocity estimation that fits around Mount Talang is at the velocity between 2.5 to 2.8 km / s. Where the condition of the surrounding medium is still relatively compact.
An Integrated Survey of the Geochemical Study at the Blawan-Ijen Area, East Java Riska Laksmita Sari; Firman Sabila; Haeruddin Haeruddin; Eriska Saputri; Welayaturromadhona Welayaturromadhona; Hadziqul Abror; Sartika Purwandari; Agus Triono
Journal of Earth Energy Engineering Vol. 10 No. 2 (2021)
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jeee.2021.5263

Abstract

Geothermal energy is a renewable alternative energy source. One of the analyses used to determine the characteristics of a geothermal field is water geochemical analysis. The target of this research is the Blawan-Ijen geothermal prospect area, Bondowoso. The geochemical analysis was carried out using AAS, Spectrophotometer and acid-base titration. This survey shows the characteristics of the geothermal system and geothermal fluid in the Blawan area, Ijen. From the chemical analysis of hot water, we found that the types of geothermal water fluids in the Blawan Ijen area vary. In samples BL1, BL2 and BL5 included in the type of Sulphate Water with the dominant elemental Sulphate (SO4) content is also known as Sulfuric Acid Water (Acid-Sulphate Water). Then for the BL4 sample included in the type of chloride water. This type of water is a type of geothermal fluid found in most areas with high-temperature systems. Areas with large-scale hot springs flowing with high Cl concentrations originate from deep reservoirs and indicate permeable zones in those areas. However, this area may not be located above the main upflow zone. There are several other possibilities, such as topographic influences, which can significantly impact hydrological control. The presence of chlorine gas can also identify high zones' permeable areas (e.g., faults, breccia eruptions or conduit). In contrast, BL3 samples are included in the Bicarbonate Water-type. The element HCO3 (bicarbonate) is the most dominant element (main anion) and contains CO2 gas from the chemical analysis results. HCO3 water is generally formed in marginal and near-surface areas in systems dominated by volcanic rocks, where CO2 gas and condensed water vapour into groundwater. The vapour condensation can either heat the groundwater or be heated by steam (steam heated) to form an HCO3 solution
Identifikasi Potensi Air Tanah dengan Metode Geolistrik: Studi Kasus di Desa Sumberpakem Kabupaten Bondowoso Welayaturromadhona Welayaturromadhona; Eriska Eklezia Dwi Saputri; Rahma Rei Sakura; Tri Vicca Kusumadewi
JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) VOL. 6 NOMOR 1 MARET 2022 JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat)
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1295.42 KB) | DOI: 10.30595/jppm.v6i1.7033

Abstract

Desa Sumberpakem, Kecamatan Maesan, Kabupaten Bondowoso merupakan salah satu wilayah yang selalu mengalami darurat kekeringan setiap tahunnya. Kegiatan ini bertujuan mendapatkan air tanah sebagai sumber air bersih dan pertanian secara lebih cepat dan murah serta mampu dikelola oleh penduduk dan/atau para petani setempat secara mandiri demi menjamin keberlanjutannya. Setiap daerah memiliki karakteristik geologi dan hidrogeologi yang berbeda. Oleh karena itu perlu dilakukan penyelidikan air tanah dengan studi geologi maupun geofisika untuk mendapatkan gambaran perlapisan bawah tanah dan juga potensi lapisan akuifer air tanah pada suatu daerah. Salah satu metode yang bisa diterapkan adalah metode geolistrik tahanan jenis 1D atau VES (Vertical Electrical Sounding). Metode pengukuran ini memanfaatkan injeksi arus listrik dan menangkap beda potensialnya. Titik pengukuran yang diambil sebanyak 12 titik yang berada di sekitar desa. Dengan pengukuran ini maka diharapkan bisa memberikan informasi bawah permukaan dan keberadaan potensi air tanah untuk memenuhi kebutuhan air. Penyelidikan geolistrik mampu untuk memetakan perlapisan dan potensi air tanah. Area penyelidikan masuk dalam zona Cadangan Air Tanah (CAT) Bondowoso – Jember. Kondisi lapisan tanah lokasi penyelidikan 1 (kode M) terdiri dari Tuff (Akuiklud), Pasir (Akuifer Bebas), Pasir Tuffan, Tuff Pasiran, Pasir Kerikilan, Batu Pasir Tuffan, Pasir dan Breksi Vulkanik. Kondisi lapisan tanah lokasi penyelidikan 2 (kode SA) terdiri dari Tufan Kerikil, Pasir Tufan, Pasir Kerakal, Breksi Tufan, Breksi Gunungapi.
Coal Bed Methane di Indonesia : Review dan Permasalahannya Riska Laksmita Sari; Hadziqul Abror; Eriska Eklezia Dwi Saputri; Welayaturromadhona Welayaturromadhona
Jurnal Teknologi Sumberdaya Mineral Vol 3 No 1 (2022)
Publisher : Program Studi Teknik Pertambangan Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jeneral.v3i1.31696

Abstract

Coal Bed Methane (CBM) atau dalam bahasa Indonesia disebut dengan Gas Metana Batu Bara, merupakan salah satu sumber energi baru yang termasuk dalam kategori hidrokarbon nonkonvesional. CBM dinilai dapat menjadi energi alternatif gas konvensional. Diperkirakan terdapat 11 cekungan batubara darat di Indonesia dengan total sumber daya CBM prospektif sebesar 453,3 TCF. Cekungan-cekungan tersebut tersebar di wilayah Sumatera dan Kalimantan. Menurut studi yang dilakukan oleh beberapa peneliti, potensi CBM pada batu bara di Indonesia sebagian besar pada kelompok high-rank coal yang artinnya memiliki cadangan energi atau kalori yang besar. Terkait perkembangan wilayah kerja pengembangan CBM di Indonesia, dari semula berjumlah 54 blok CBM yang sudah dilakukan tanda tangan kontrak antar pemerintah dengan kontraktor, hanya tersisa 34 blok yang terdaftar dengan 2 blok dalam proses terminasi. Adannya trend menurun pengembangan proyek CBM di Indonesia ini disebabkan beberapa faktor, diantarnnya faktor teknis dan non teknis yang salah satunnya terkait regulasi pengembangan CBM sebagai gas nonkonvensional.
Analisa Unjuk Kerja Sucker Rod Pump C-228 D – 213 – 86-7466 Sebagai Metode Pengangkatan Buatan Produksi Minyak Bumi untuk API 15° dan 45° Edward Hamid Muhammad; Hadziqul Abror; Eriska Eklezia Dwi Saputri; Riska Laksmita Sari; Welayaturromadhona Welayaturromadhona
Jurnal Teknik Mesin Vol 15 No 2 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.2.945

Abstract

The oil production process is the process of extracting oil from the reservoir using the wells that have been made. In the production process there are three stages, namely primary recovery, secondary recovery and tertiary recovery. At the primary recovery stage there are two methods, namely production using natural reservoir energy (natural flow) and production using artificial lift methods (artificial lift). There are two basic principles of artificial lift, namely gas lift and pumps. The principle of the gas lift is to inject gas into the bottom of the well thereby reducing the density and pressure gradient of the reservoir fluid so that the fluid flows more easily. While the principle of the pump is to provide additional energy (head) to lift the fluid. The type of pump that is often used for shallow wells is Sucker Rod Pump. The performance of the sucker rod pump is influenced by the characteristics of the well and reservoir such as pressure, well productivity, physical properties of the fluid, as well as the depth of the well and the dimensions of the sucker rod pump. In this study, the factors studied were the physical properties of the fluid, namely the API of the fluid with variations of API 15o and API 45o, as well as the pump volumetric efficiency (Ev) of 90% and 70%. From the analysis carried out, the results obtained a). For API 15° and Ev 90% fluids: 759 stb/day and 39 hp prime mover power; and for API 15° and Ev 70%: 591 stb/day and prime mover power of 32.2 hp. b). For API 45° and Ev 90% fluids: 783 stb/day and prime mover power of 34.3 hp; and for API 45° and Ev 70%: 609 stb/day and prime mover power of 28.6 hp.
EVALUASI PERMASALAHAN GAS LOCK PADA SUMUR MT-02 DI LAPANGAN MT DENGAN METODE SENSITIVITAS FREKUENSI VSD Irvan Saputra; Eriska Eklezia Dwi Saputri; Hadziqul Abror; Riska Laksmita Sari; Welayaturromadhona
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 4 (2022): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v11i4.15441

Abstract

Lapangan MT berlokasi di Tuban, Jawa Timur. Sumur MT-02 merupakan salah satu sumur di lapangan MT yang menggunakan Electrical Submersible Pump (ESP). Dalam pengoperasian pompa ESP di sumur MT-02 sering terjadi permasalahan gas lock. Permasalahan ini ditandai dengan kandungan free gas yang tinggi dan ikut terproduksi yang terakumulasi masuk ke dalam pompa. Apabila free gas cukup banyak ikut terproduksi pada sumur, maka efisiensi pompa mengalami penurunan dan menimbulkan permasalahan pada pompa. Untuk menangani permasalahan gas lock ini, salah satunya adalah dengan mengontrol rate produksi fluida. Hal tersebut dapat dilakukan dengan mengaplikasikan sensitivitas frekuensi Variable Speed Drive (VSD) pada sumur. Dengan perubahan frekuensi yang dapat diatur melalui Variable Speed Drive, maka rate produksi fluida dapat dikontrol sehingga dapat ditentukan rate optimum produksi fluida dimana jumlah free gas yang terproduksi masuk ke dalam pompa tidak mengganggu kinerja pompa dan mencegah terjadinya indikasi gas lock pada sumur. Hasil sensitivitas frekuensi VSD menunjukkan bahwa frekuensi optimum untuk mencegah terjadinya gas lock di sumur MT-02 berada di rentang ≤ 59,47 Hz.
Co-Authors Adi Susilo Agus Triono Edward Hamid Muhammad Eriska Eklezia Dwi Saputri Eriska Eklezia Dwi Saputri Eriska Eklezia Dwi Saputri Eriska Saputri Firman Sabila Hadziqul Abror Hadziqul Abror Hadziqul Abror Haeruddin Haeruddin Hetty Triastuty Irvan Saputra Rahma Rei Sakura Riska Laksmita Sari Sartika Purwandari Tri Vicca Kusumadewi