The SPE has split the former "Management & Information" technical discipline into two new technical discplines:
- Management
- Data Science & Engineering Analytics
Filters
SPE Disciplines
Geologic Time
Publisher
Concept Tag
- analytical method (1)
- ariadji (1)
- Artificial Intelligence (1)
- balikpapan section petroleum summit address (1)
- ceip 2021 (1)
- central & eastern indonesia (1)
- climate change (1)
- coworker (1)
- diameter (1)
- discontinuity (1)
- displacement (1)
- Engineering (1)
- Indonesia (1)
- Isfahan (1)
- middle part (1)
- numerical method (1)
- oil and gas (1)
- plane strain (1)
- portal (1)
- relation (1)
- relative displacement (1)
- Reservoir Characterization (1)
- rock mass (1)
- social responsibility (1)
- software (1)
- stress-strength method (1)
- structural geology (1)
- sustainability (1)
- sustainable development (1)
- tunnel (1)
- University (1)
- unsupported tunnel (1)
- Upstream Oil & Gas (1)
Industry
Technology
File Type
Site News
Goto
No map tile layer
| Layer | Fill | Outline |
|---|
Map layers
| Theme | Visible | Selectable | Appearance | Zoom Range (now: 0) |
|---|
| Fill | Stroke |
|---|---|
Collaborating Authors
Asmara
During 7-14 August, SPE Balikpapan Section, in partnership with IATMI-Indonesia Tengah Timur Commissariat, held the Central & Eastern Indonesia Petroleum Summit (CEIPS 2021), the largest oil and gas event conducted in central and eastern Indonesia this year. The event was developed around a central topic of "Business as Unusual: Paradigm Shift in the Era of Change," and served as a platform to explore opportunities that the region has to offer in terms of exploration, production, and utilization of oil and gas, as well as to discuss secondary topics such as Indonesia energy outlook, digital disruption, emerging of renewable energies, and leadership forums. Tutuka Ariadji, general director of oil and gas at the Ministry of Energy and Natural Resources of Indonesia, discussed the institutional vision of the oil and gas industry in Indonesia by 2030. Ariadji emphasized that collaboration and technology are key elements toward cost reductions and efficiency during high-volatility and uncertainty scenarios. Other panelists, Wimbuh Nawa Nugroho (Petronas Carigali Indonesia) and Chandra Asmara (Pertamina Power Indonesia) explained the framework of net-zero carbon emissions and the synergy among the emerging technologies and the new configuration of the energy matrix.
Industry:
- Energy > Oil & Gas (1.00)
- Government > Regional Government > Asia Government (0.62)
SPE Disciplines:
Abstract: The Aloft dam diversion tunnel with length of 450 m and diameter of 9 m is to be excavated in left abutment of Aloft dam and the currently under study. The lithology mostly comprises of jointed Asmara and Arum limestones. The tunnel passes the AS2 zone of Asmara formation belongs to dolomitic limestones of Miocene age. The rock mass discontinuities orientations were studied by a field survey and a statistical analysis. Also the boreholes logs and outcrop surveys were used to determine the basic characteristics of the discontinuities. The rock mass surrounding the tunnel is classified using the Q, RM and GI methods. The engineering properties and temporary tunnel support systems were determined based on the methods. A series of 3D analytical (stress-strength method) and numerical continuum (FEM) stability analyses were conducted for the rock mass surrounding excavation face based on the excavation scheme proposed by the empirical method based on RM for supported and unsupported tunnel. Based on the analyses, there is no need for intense support installation. For verification and to determine the influence area of the face, the longitudinal displacement profile values were extracted, drawn and compared with the available literature. 1. Introduction The Aloft dam is to build on Aloft River located 77 km from Shah record city, Chaharmahal-Bakhtiary Province, is still under feasibility studies. The dam diversion tunnel has the length of 450 m, diameter of 9 m and inlet invert elevation of 1037 above sea level. 2. Geology of the study area The lithology mostly consists of Avrom formation limestones, dolomitic limestones and limestones of Asmara formation which belong to lower Miocene age. Structural geology studies did not show any major fault in the tunnel route area, but a few minor and small local faults are observed in river bed and right abutment which are represented by vertical movement of less than a meter along with surface typical morphological evidences. 2.1. Orientation of discontinuities To classify the discontinuities of the left abutment where the tunnel is to be excavated, 300 data pairs of discontinuities dip/dip directions were measured from the available outcrops. 2.2. Discontinuities characteristics Basic characteristics of discontinuities including aperture, weathering, in fillings, spacing, roughness, persistence(continuity), Rock quality Designation (RED) and also ground water flow state and quantity, were extracted from 3 available boreholes logs (BH1 nearly inlet portal, BH2 in middle part and BH3 nearly outlet portal) and longitudinal geological tunnel profile. The data ranges used in the frequency analysis were uniquely determined from the ranges utilized for classifying the parameters used in famous classification systems such as Q, RM and GI. 3. Geotechnical Evaluation and classification of rock mass along the tunnel route Considering longitudinal geological profile of tunnel route, structural geology of the tunnel, 3 available boreholes logs and discontinuities orientations and characteristics, the tunnel route was divided into 3 parts as inlet portal, middle part and outlet portal. The rock mass along the 3 parts were individually classified using well-known classification systems such as RM, Q, and GI.
analytical method, Artificial Intelligence, coworker, diameter, discontinuity, displacement, Engineering, Isfahan, middle part, numerical method, plane strain, portal, relation, relative displacement, Reservoir Characterization, rock mass, software, stress-strength method, structural geology, tunnel, University, unsupported tunnel, Upstream Oil & Gas
SPE Disciplines: Reservoir Description and Dynamics > Reservoir Characterization > Exploration, development, structural geology (1.00)
Save or update focal point
Save a search / focal point to access it again.
Thank you!