Article Per Year (5 Year)
p-Index From 2019 - 2024
0.408
P-Index
This Author published in this journals
All Journal Bulletin of Geology
Benyamin Sapiie
Program Studi Teknik Geologi, Fakultas Ilmu dan Teknologi Kebumian, Institut Teknologi Bandung (ITB)
Earth & Planetary Sciences Energy Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
IDENTIFIKASI TEKANAN REKAH KRITIS PADA SUMUR AA-1 DAN AA-2 LAPANGAN PANASBUMI RANAU DEDAP, SUMATERA SELATAN Andika Artyanto; Benyamin Sapiie; Chalid Idham Abdullah; Ridwan Permana Sidik
Bulletin of Geology Vol 3 No 2 (2019): Bulletin of Geology
Publisher : Fakultas Ilmu dan Teknologi Kebumian (FITB), Institut Teknologi Bandung (ITB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/bull.geol.2019.3.2.2

Abstract

Rantau Dedap Geothermal Field is located at about 225 km to the southwest of Palembang City. This field is located on the Semangko Fault, so numerous complex fault and fracture structures formed. Identification of critically stressed fracture used to fracture that has the ability to drain the fluid. Therefore, this analysis needs to be done to geothermal exploration and development on Rantau Dedap Geothermal Field. Rantau Dedap Geothermal Field is controlled by strike slip fault regime shown in at AA-1 and AA-2. Based on critically stressed fracture analysis is known that fracture at AA-1 and AA-2 in critical condition the direction NE-SW on the AA-1, and N-S and NE-SW at AA-2. This indicates that the Rantau Dedap Geothermal Field has a strike slip fault are in critical condition so that it can drain the fluid properly.
KARAKTERISTIK REKAHAN ALAMI, STUDI KASUS MODEL SINGKAPAN DIGITAL (DOM) BATUAN GRANITIK DI MUARO SILOKEK, SUMATERA BARAT Wildan Tri Koesmawardani; M.E. Marshal Nurshal; Benyamin Sapiie; Alfend Rudyawan
Bulletin of Geology Vol 3 No 3 (2019): Bulletin of Geology
Publisher : Fakultas Ilmu dan Teknologi Kebumian (FITB), Institut Teknologi Bandung (ITB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/bull.geol.2019.3.3.1

Abstract

Digital Outcrop Model (DOM) is a method of building a more realistic, 3D-based geocellular model based on photogrammetric data. DOM can describe position of fractures with a minimum length of four meters, so it can describe better distribution and fracture geometry with more precision. DOM used has a dimension of 320 m × 12 m at fractured granitic rock outcrops at Muaro Silokek, West Sumatra. There are 1183 fracture interpretations in the DOM. Based on the fracture orientation scattered in the DOM, there are four segmentation structures with three domain orientation directions, north north west - south southeast (NNE-SSW), northeast - southwest (NE-SW), and east-northeast - west southwest (ENE-WSW). The results of kinematic analysis of the structural data show that the Muaro Silokek area is affected by the strike slip fault with the northwest-southeast direction (NW_SE) which is parallel with orientation of the Takung Fault. Fracture density analysis in DOM was carried out by grid method with grid dimensions of 20 m × 20 m resulting in a value range of 0.15 - 1 fracture/m2. From the results of the fracture density analysis, the kinematic analysis can be carried out to determine the minor fault orientation. Fracture density is strongly influenced by the distance to fault and has logarithmic distribution data with a high correlation coefficient R2 = 0.98.
ANALISIS GEOMEKANIKA PADA BATUAN DASAR, DI AREA JS-1 RIDGE BAGIAN SELATAN, CEKUNGAN JAWA TIMUR UTARA Agung Gunawan; Benyamin Sapiie; Bintoro Wibowo
Bulletin of Geology Vol 1 No 1 (2017): Bulletin of Geology
Publisher : Fakultas Ilmu dan Teknologi Kebumian (FITB), Institut Teknologi Bandung (ITB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/bull.geol.2017.1.1.1

Abstract

East Java basin is one of production basin in Indonesia. Recently, basement is began evaluated more detail, and also has become one of exploration target in this area. Geomechanics and critically stress fractures analysis are some of methods which is used to evaluate basement potential. These methods are used to evaluate fractures which contribute to fluid flow in basement. Fracture interpretation is done in 2 (two) exploration well, Well-A and Well-B. The result of interpretation show the orientation of natural fracture in both wells is Northeast- Southwest (NE-SW). The orientation of SHmax in Well-B is Northeast Southwest (NE-SW) perpendicular to the breakout fractures. The orientation of Shmin in Well-B is Northwest-Southeast (NW-SE) parallel to breakout fractures. In this research, geomechanics model has only been carried out based on Well-B. The model shows that tectonic regime is strike-slip, the major stress orientation is Northeast-Southwest (NE-SW). The critically stress fracture analysis show that fracture orientation, which is in critical condition, is N 10o-20o E and N 65o E. These fractures are considered contribute to the fluid flow in basement.
Co-Authors Agung Gunawan Alfend Rudyawan Andika Artyanto Bintoro Wibowo Chalid Idham Abdullah M.E. Marshal Nurshal Ridwan Permana Sidik Wildan Tri Koesmawardani