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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) Petrogas : Journal of Energy and Technology
Eltimeyansi Crisye Randanan
STT Migas Balikpapan
Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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KAJIAN PENERAPAN KAMPUS RAMAH LINGKUNGAN (GREEN CAMPUS) DI STT MIGAS BALIKPAPAN Risna Risna; Esterina Paindan; Eltimeyansi Crisye Randanan; Mohammad Lutfi
PETROGAS: Journal of Energy and Technology Vol 3, No 1 (2021): March
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v3i1.53

Abstract

Global Warming is one of the environmental problems today. Efforts of anticipatons as a form of concern, have been carried out by various environmental movement programs, initiated by the government, NGOs and the community. In principle, environmentally friendly campus management is one of the determinants in producing the quality and quantity of the ongoing educational process. The purpose of this research is to study the application of an environmentally friendly campus using the fishbone diagram method to analyze the cause and effect of a problem. The results of the cause and effect analysis are then used as input to formulate internal factors in the SWOT, then produce strategies to minimize obstacles and increase the success of the green campus. This research is useful for educational institutions at STT Migas Balikpapan because it can provide an understanding of campus management policies that are oriented towards environmental management, in an effort to implement environmental education for students, as well as the care and involvement of all elements of the academic community in a culture of environmental care.
Optimasi Desain Gas Tight Slurry Cement Pemboran pada Kondisi Temperature Tinggi untuk Meningkatkan Integritas Cement Berdasarkan Evaluasi Sifat Fisik pada Skala Laboratorium Gracia Amarya Ngongoloy; Eltimeyansi Crisye Randanan; Esterina Natalia Paindan; Firdzan Rachman Abu Rizal
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 3 (2026): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i3.60607

Abstract

Cement integrity in oil and gas well cementing operations is critically important, particularly under high-pressure and high-temperature (HPHT) conditions and in the presence of gas indications. The main challenges include degradation of cement quality due to changes in slurry physical properties such as strength retrogression, as well as the risk of micro-annulus formation and channeling that can lead to gas migration. This study aims to optimize slurry design to enhance cement integrity and prevent gas migration. The method employed is a laboratory-based experimental approach with quantitative analysis of slurry physical properties. The results indicate an optimal formulation with a density of 17 ppg, pumpable rheology, filtration loss of 35 ml, thickening time of 6 hours 30 minutes, 0% free water, SGS transition time of 2 minutes (100–500 lb/100 ft²), cement expansion of 0.651%, compressive strength of 4910 psi, and cement hydration that passed gas migration testing. This formulation is proven to be effective in maintaining cement integrity under high-temperature conditions.
Co-Authors Esterina Paindan Firdzan Rachman Abu Rizal Gracia Amarya Ngongoloy Mohammad Lutfi Paindan, Esterina Natalia Risna Risna