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All Journal Journal of Industial Engineering and Technology Petro : Jurnal Ilmiah Teknik Perminyakan
Enda Apriani
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Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering

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KAJIAN PENGARUH KANDUNGAN LEMPUNG TERHADAP PERMEABILITAS DAN POROSITAS BATUAN RESERVOIR: STUDI EKSPERIMENTAL DI LABORATORIUM Irmaya, Aisyah; Rena Juwita Sari; Enda Apriani
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 14 No. 4 (2025): Desember 2025
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.v14i4.24263

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh kandungan mineral lempung terhadap sifat petrofisika batuan reservoir, khususnya porositas dan permeabilitas, dengan memanfaatkan sampel singkapan Formasi Sambipitu dan Formasi Oyo di Kabupaten Gunungkidul sebagai analogi. Metode yang digunakan meliputi analisis petrografi, X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) dengan EDS mapping, serta uji porositas dan permeabilitas. Hasil penelitian menunjukkan bahwa jenis dan distribusi mineral lempung berperan signifikan dalam mengontrol kualitas reservoir. Kaolinit relatif mendukung porositas efektif karena cenderung tidak menghalangi jalur alir, sedangkan illit dan smektit menurunkan permeabilitas akibat mekanisme pengisian pori, bridging antarbutir, dan sifat ekspansif saat berinteraksi dengan fluida. Analisis integratif menunjukkan Formasi Sambipitu yang didominasi kaolinit dan fragmen fosil berpori memiliki kualitas reservoir lebih baik dibanding Formasi Oyo yang kaya mikrit, semen karbonat, serta illit. Nilai porositas yang diperoleh berkisar antara 7,03–20,80% dan permeabilitas 33,57–298,16 mD, dengan hubungan yang tidak selalu linier akibat pengaruh distribusi lempung. Simpulan dari penelitian ini adalah mineral lempung terbukti menjadi pengontrol utama kualitas reservoir, sehingga hasil studi dapat dijadikan dasar validasi model petrofisika serta referensi awal dalam mitigasi kerusakan formasi pada tahap eksplorasi dan produksi.
Occupational Health and Safety Risk Analysis of Operators at XYZ Gas Station Using HIRARC and FMEA Mutiara Dicinta; Enda Apriani
Journal of Industrial Engineering and Technology Vol. 6 No. 2 (2026): 30 Juni 2026
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jointech.v6i2.17422

Abstract

The rising number of motor vehicles in Yogyakarta has increased activities at local gas stations, raising occupational health and safety (OHS) risks. The aim of this study is to analyze operator safety risks at XYZ Gas Station in Yogyakarta by integrating Hazard Identification, Risk Assessment, and Risk Control (HIRARC) with Failure Mode and Effect Analysis (FMEA). The research involved three stages: observation to identify hazards, risk level assessment using a HIRARC questionnaire distributed to operators, and mitigation priority analysis calculating the Risk Priority Number (RPN) via FMEA. Initially, 26 hazards were identified across five operator job types. The HIRARC assessment revealed five high-level risks, which were further analyzed through FMEA and managerial interviews. Results highlighted three critical risks with high RPN: operators inhaling dense fuel vapors due to poor SOP supervision (RPN 80), consumers failing to turn off engines due to unseen signs (RPN 64). The study recommends improving markings and signs, enforcing SOP supervision, and implementing the use of technology in occupational health and safety supervision to minimize workplace risks.
Co-Authors Irmaya, Aisyah Mutiara Dicinta Rena Juwita Sari