Aulia Hidayat Burhamidar
Jurusan Teknik Pertambangan, Fakulltas Teknik, Universitas Negeri Padang

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KAJIAN HIDROGRAF BANJIR DAERAH ALIRAN SUNGAI TANJUNG PARAK PADA PEMBANGUNAN EMBUNG PULAU TIGA Mashuri; Miskar Maini; Aulia Hidayat Burhamidar
Jurnal Infrastruktur Vol 8 No 1 (2022): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v8i1.3186

Abstract

The Purpose of construction the reservoir to control flood and rainwater reservoir . In Rainy Season, Pulau Tiga Village always flood due to overflow of the Tanjung Parak river and at dry season, people have difficulty getting raw water. For this reason, it is necessary to build reservoir as an effort to control flooding and water absorption especially in rainy season and as rainwater reservoir to demand raw water people.The reservoir planning requires the study of the flood hydrograph in the Tanjung Parak Watershed using the synthetic unit hydrograph method. The SCS, Nakayasu, and ITB-1 method were used in flood hydrograph analysis. The performance of all HSS modeling are very good and qualified based on volume control value/ direct runoff (dro) is close to 1 where the HSS SCS method is 0,99891 with volume 749,18 m3, the nakayasu HSS method is 1,07161 with volume 803,71 m3 and the HSS ITB-1 method is 1,00821 with volume 756,16 m3. The peak discharge for the 25-year return period due to hyetograph 6 hours with the SCS Method 12.70 m3/ s with volume 39447,80 m3, the Nakayasu Method 13,14 m3/ s with volume 43758,16 m3 and the ITB-1 Method 12,76 m3/ s with 39658,17 m3. The value of HSS SCS method is considered to represent flood hydrograph in Tanjung Parak river because volume/ dro value is closer to 1 than HSS ITB-1 and HSS Nakayasu methods so peak discharge and hydrograph volume will be basic for calculations in planning reservoir dimensions and other.
PREDIKSI OVERPRESSURE PADA SUMUR MINYAK BUMI DI CEKUNGAN JAWA TIMUR BERDASARKAN ANALISA DATA WIRELINE LOG DAN SIDEWALL CORE Aulia Hidayat Burhamidar; Harizona Aulia Rahman; Meryam Putri Armaini
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 22, No 1 (2022): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v22i1.427

Abstract

Resiko terjadinya blowout akibat tekanan pori yang berlebih pada proses pengeboran di industri minyak dan gas bumi semakin tinggi. Prediksi keberadaan overpressure menjadi sangat penting untuk dilakukan guna mengantisipasi hal tersebut terjadi. Cekungan Jawa Timur sebagai lokasi penelitian merupakan salah satu cekungan sedimen penghasil hidrokarbon utama di Indonesia akan tetapi juga sering ditemukan kondisi overpressure. Prediksi overpressure dilakukan pada 1 sumur onshore dan 3 sumur offshore dengan analisis pada data cutting dan sidewall core, log talikawat dan pengukuran tekanan pori. Pengolahan data-data dengan melakukan korelasi ketiga data tersebut menunjukan masing-masing sumur mengalami overpressure pada kedalaman yang berbeda - beda. Sumur onshore 1 menunjukan indikasi overpressure pada kedalaman 380 - 1588 m, sumur offshore 1 pada kedalaman 690 - 2313 m, sumur offshore 2 pada kedalaman 1100 - 4401 m, dan sumur offshore 3 menunjukan indikasi overpressure, akan tetapi tidak dapat ditentukan top of overpressure akibat keterbatasan data. Perbedaan top of overpressure pada tiap sumur diakibatkan oleh perbedaan mekanisme proses terjadinya overpressure.