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All Journal Journal of Geoscience, Engineering, Environment, and Technology Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Inovator Jurnal Kreatif : Desain Produk Industri dan Arsitektur Jurnal Abdi Masyarakat Multidisiplin Jurnalika : Jurnal Ilmu Komunikasi Indonesian Journal of Chemical Engineering Jurnal Akademik Pengabdian Masyarakat JOURNAL OF COMMUNITY SERVICE AND APPLICATION SCIENCE (JCSAS) Scientific Contributions Oil and Gas
Novrianti
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Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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The Laboratory Investigation of the Effect of Calcium Chloride (CaCl₂) Derived from Duck Eggshells on the Thickening Time and Strength of Drilling Cement Novrianti; Rico, Muhammad; Khalid, Idham; Purnamawati, Neneng; Herawati, Ira
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24246

Abstract

The thickening time and mechanical strength are vital in the performance of the drilling cement and are usually tested by API standards. The paper determines the role of duck eggshells' calcium chloride (CaCl2) as a natural accelerator on the cement slurry properties. CaCl2 was prepared by a regulating reaction between eggshell powder and 1M HCl and then was mixed with the Class G cement at the 1%, 2%, 3%, and 4% weight proportions. The experimental findings show that the most preferred performance is observed when the CaCl2 is 4 percent, which reduces thickening time to 128 minutes and increases compressive strength to 4,464.62 psi and shear bond strength to 370.28 psi. These results imply that using waste materials as the source of CaCl2 bio-based accelerators would be a viable source that would be environmentally viable in the optimization of drilling cements
Evaluating Petrographic and Mechanical Property Correlations in Sihapas Formation for High-Pressure Hydraulic Fracturing Using Pearson and Spearman Methods Prayitno, Budi; Akhillah, Daffa; Novrianti; Fitiransyah, Dike; Panuh, Dedikarni
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.1999

Abstract

This study aimed to evaluate the suitability of natural frac sand (SiO₂) from the Sihapas Formation as a proppant for hydraulic fracturing in unconventional oil and gas reservoirs in Riau Province, Indonesia. Quantitative–qualitative evaluation in hydraulic fracturing systems is conducted to assess the performance of quartz grains (SiO₂) in enhancing and maintaining fluid flow conductivity under the influence of stress, formation blockage, and chemical interactions. Sieve distribution analysis was performed to determine particle size distribution, crush resistance testing was conducted to evaluate mechanical strength, and X-Ray Diffraction (XRD) was used to characterize mineral composition. The correlative relationships among parameters were further analyzed using Pearson and Spearman statistical methods, with API RP 56 (frac sand) and API 19C (proppant) standards serving as benchmarks. The results showed that the 40/70 mesh fraction dominates across samples, though roundness values fall below specification thresholds while sphericity remains within acceptable ranges. Grain hardness testing at 5000 psi showed relatively high destruction rates, while mineralogical analysis confirmed a consistently high SiO₂ composition (≥98%) with secondary clay minerals. Elevated turbidity and alkaline pH values were also observed. Statistical analysis showed strong correlations among parameters, reflecting the influence of geological transport processes on grain morphology and mineral decomposition due to diagenetic processes. In general, these findings showed that natural frac sand samples do not fully meet API standards, highlighting the need for innovation and direct well testing to enhance material quality for hydraulic fracturing applications.
PENGARUH MEDIA AUDIOVISUAL TERHADAP KREATIVITAS BERPIKIR SISWA PADA MATA PELAJARAN INFORMATIKA KELAS VII DI SMPN 1 X KOTO DIATAS Siti Nabilah Raisah AR; Novrianti; Mutiara Felicita Amsal; Reni Kurnia
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.48378

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya kreativitas berpikir siswa dalam pembelajaran Informatika akibat dominannya metode pembelajaran konvensional dan minimnya penggunaan media pembelajaran interaktif. Siswa cenderung hanya mencatat materi dan kurang aktif selama proses pembelajaran berlangsung. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh media audiovisual terhadap kreativitas berpikir siswa pada materi Sistem Komputer kelas VII SMPN 1 X Koto Diatas. Penelitian ini menggunakan pendekatan kuantitatif dengan metode eksperimen. Partisipan penelitian berjumlah 41 siswa yang dibagi menjadi dua kelompok, yaitu kelas eksperimen yang menggunakan media audiovisual dan kelas kontrol yang menggunakan media PowerPoint. Pengumpulan data dilakukan melalui angket kreativitas berpikir yang telah diuji validitas dan reliabilitasnya. Penelitian dilaksanakan pada tahun ajaran 2024/2025. Teknik analisis data menggunakan statistik deskriptif dan uji prasyarat analisis untuk mengetahui perbedaan hasil kedua kelas. Hasil penelitian menunjukkan bahwa kelas eksperimen memperoleh skor kreativitas berpikir lebih tinggi dibandingkan kelas kontrol. Kelas eksperimen memperoleh rata-rata 145,95 dengan skor tertinggi 181 dan skor terendah 106, sedangkan kelas kontrol memperoleh rata-rata 138,14 dengan skor tertinggi 160 dan skor terendah 98. Kesimpulan penelitian menunjukkan bahwa media audiovisual berpengaruh signifikan dalam meningkatkan kreativitas berpikir siswa pada pembelajaran Informatika. Implikasi penelitian ini adalah media audiovisual dapat digunakan sebagai media pembelajaran yang efektif, interaktif, dan inovatif untuk meningkatkan partisipasi, pemahaman, dan kualitas belajar siswa.
Perancangan Mesin Pengiris Tempe Ergonomis Daumi Rahmatika; Novrianti; Hari Purnomo
Jurnal INOVATOR Vol. 3 No. 2 (2020): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v3i2.132

Abstract

As Small and Medium size enterprise(SME) still using manual and simple tools in their operation as done by Bude Wagino SME which is located at Sungai Bahar,Batanghari. This SME specialized at making kripik Tempe(Tempe chips). Based on observation and interview at the SME, the workers complain that they experience over fatigue, back pain and sore muscle in their arms. The purpose of this research is to design ergonomic slicer tempe tools by using  ENASE concept. This research using mixed method which using antropometri data such as height of sitting elbow,normal range,far reach, and grip width as quantitative method. As qualitative method used for interview the workers. The data of workers percentile will be used as based design of the tools.By using the tool will be expected to decrease the workers complain and can increase the productivity.
Co-Authors Aditya Padini Syah Akhillah, Daffa Ayyi Husbani Baehaqi Budi Prayitno Daumi Rahmatika Dedikarni Fetri Yeni Fetri Yeni J Fitiransyah, Dike Fitri Nurzana Handayani, Corry Hari Purnomo Husbani, Ayyi Imam Bayhaqi Imelda Adima Putri Indrawaty , Novi Ira Herawati, Ira Irwan Anwar Lisa Candra Sari Martin Kustanti Melysa, Richa Mutiara Felicita Amsal Nadilla Neneng Purnamawati Nensy Purziana Novrianti Ochi Willya Chevrananda Rahmi Pratiwi Reni Kurnia Rezki Amelia Richa Melysa RICO, MUHAMMAD Rindi Wulansari Siti Nabilah Raisah AR Teguh Sahibillah Alfajri wahyudi. S, fazril wahyudi.s Widia Ierdiana Yolly Adriatic Zen, Zelhendri