STABILITY AND FAILURE ANALYSIS OF EXCAVATIONS USED FOR UNDERGROUND MINING OF BATI RAMAN OIL FIELD

Download

M.E. Emci - M.Sc. Thesis (2021) - STABILITY AND FAILURE ANALYSIS OF EXCAVATIONS USED FOR UNDERGROUND MINING OF BATI RAMAN OIL FIELD.pdf

Date

2021-11-8

Author

Emci, Mehmet Emircan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

947
views

496
downloads

Batı Raman holds the Turkey's proven largest oil reserve (1.85 billion barrels). The reserve is located at an average depth of 1450 m within a fractured limestone. This heavy oil has a 12° API gravity and a viscosity of 200-2000 cp. A future plan for this reserve is to use a "mining assisted heavy oil production" method. The idea behind this method is to reach the reserve by a decline from the surface and continue opening up galleries beneath the reserve from which fan shape up holes will be drilled in the reserve. Steam will be injected from these up holes to decrease the viscosity of heavy oil and production will be done by gravity drainage. In this thesis, stability of all the openings based on the scenario above is carried out using a numerical modelling code, FLAC. In the first stage, tunnel openings were first investigated based on analytical solutions, then 2D and 3D analyzes were carried out. It has been shown that the 20m wall-to-wall pillar, which is planned to be left between the tunnels, will remain stable. Then, the effects of boreholes to be used in oil production in the reservoir were modelled, and it was determined that the extends of the failure zones occurred along the tunnel and in the regions where the boreholes were opened. It was compared with a physical model test made with the found failure zones, and it was concluded that 2.23% of the heavy oil production determined in the experiment was due to borehole openings. A parametric study was conducted by analyzing a total of 15 models by following the ratio found, and Excavation Induced Damage Production Ratio (EIDPR) was defined. As a result of the parametric study, a regression model was created, and the model's equation was shared.

Subject Keywords

Heavy oil, Tunnel boring machinery, Numerical modelling, Stability analysis, Deep Tunnels, TBM, Batı Raman, MAHOP, Ağır Petrol, Derin Tüneller, Duraylılık, MYAPÜ, Stability

URI

https://hdl.handle.net/11511/94329

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Exploitation of Bati Raman field using advanced thermal methods: MAHOP VS. CSHP Canbolat, Serhat; Öztürk, Hasan; Akın, Serhat (2021-01-01) The aim of this work is to examine and estimate the ultimate recovery from Turkey's largest oil reserve (1.85 billion barrels) utilizing a new approach called mining-assisted heavy oil production (MAHOP) and conventional steam injection horizontal production (CSHP) method. In MAHOP, declines (tunnels) are excavated from the surface to the reservoir and proceed along the reservoir's bottom. Fan-shaped steam injection holes are drilled from the upper and lower sides of the reservoir with conventional steam-as...
Investigation of Large Scale Slope Failure Mechanisms and Numerical Modeling for the Safe Design of Slopes in a Lignite Mine Tutluoglu, LEVEND; Karpuz, Celal (2008-07-24) With about 9.3 billion tons of reserve, lignite is a major source for energy production in Turkey. Turkish Coal Enterprises (TKI) produces about 60% of the yearly lignite production capacity. Can Surface Lignite Mine which is planned to produce approximately 2.5 million tons of 3000 kcal/kg coal, will be one of the main production areas of TKI. Possibility of large scale slope failures and their negative effects on mining operations in large Can Lignite Surface Mine on the northwestern Turkey were the major...
Two and three dimensional analysis of a slope failure in a lignite mine Tutluoğlu, Levend; Karpuz, Celal (2011-02-01) With about 9.3 billion tons of reserve, lignite is a major source for energy production in Turkey. The Afsin-Elbistan lignite basin, containing 47% of the overall lignite reserve in Turkey, lies in the Afsin and Elbistan districts as a part of Kahramanmaras. The new Collolar opencast mine is in the Afsin-Elbistan lignite basin, and this mine will be the second mining activity in the basin after the active Kislakoy opencast mine. The new mine will meet the coal consumption of the Elbistan B power plant. Inpu...
Numerical analysis of deep twin excavations and boreholes for heavy oil production Emci, M.E.; Öztürk, Hasan (2021-09-06) © Published under licence by IOP Publishing Ltd.One of the plans for the production of Turkey's largest oil reserve, Bati Raman (1.85 billion barrels), is to use Mining-Assisted Heavy Oil Production (MAHOP). In this method, twin declines are excavated from the surface to the reservoir and a series of excavations (galleries) continue along the bottom of the reservoir. Fan-shaped steam injection and production holes are drilled in the reservoir from the crown of the galleries to use conventional Steam-Assiste...
Mining-Assisted Heavy Oil Production (MAHOP) Canbolat, Serhat; Öztürk, Hasan; Akın, Serhat (2020-12-08) This research aims to investigate and compare the ultimate recovery from the largest oil reserve in Turkey (1.85 billion barrels) using a new method called mining-assisted heavy oil production (MAHOP) with conventional SAGD. Tunnels will be excavated from the surface to the reservoir. Fan-shaped up holes will then be drilled in the reservoir from the tunnels.Heavy oil production through these tunnels will be explored using SAGD method. Several numerical models have been designed using CMG’s STARS simulator....

Citation Formats

M. E. Emci, “STABILITY AND FAILURE ANALYSIS OF EXCAVATIONS USED FOR UNDERGROUND MINING OF BATI RAMAN OIL FIELD,” M.S. - Master of Science, Middle East Technical University, 2021.