Mining-Assisted Heavy Oil Production (MAHOP)

Canbolat, Serhat
Öztürk, Hasan
Akın, Serhat
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. Since the fan wells are opened vertically and at certain intervals along the tunnel, both a tight vertical fracturing of these wells and a separate fracture network formed by micro fractures in the vicinity of the fan holes are formed.The validation of these hypotheses has been conducted in CMG which showed that MAHOP gave better results compared to conventional SAGD where two horizontal wells are used. MAHOP gave better recovery values with less steam oil ratios. With the results of the simulation study a laboratory model was designed. Experimental operational parameters using three different wettability cases were simulated to observe recovery by considering several possible physical effects such as steam distillation and in-situ upgrading. Saturation and pressure distributions were also obtained.


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...
Emci, Mehmet Emircan; Öztürk, Hasan; Department of Mining Engineering (2021-11-8)
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 ...
Drilling of gas hydrate reservoirs
Merey, Sukru (2016-09-01)
With the consumption of conventional hydrocarbon reserves and advancement in drilling technology, recently there is a high interest in gas hydrates in the world. Due to lack of experience and sensitive nature of gas hydrates, drilling in gas hydrate reservoirs were considered as risky. However, recent drilling data in gas hydrates shows that successful drilling operations in gas hydrate reservoirs are possible with some special measurements such as specially designed drilling fluid and cement slurry etc. In...
Laboratory steam injection applications for oil shale fields of Turkey
Kök, Mustafa Verşan; Bagci, S. (Estonian Academy Publishers, 2008-01-01)
In this study, applicability of oil production from oil shales by steam recovery in a three-dimensional (3-D) reservoir model was investigated. Four different oil shale samples from several fields (Seyitomer, Beypazan, Himmetoglu and Hatildag) were used. 3-D steam injection experiments showed that steam injection was insufficient to drive oil production for the oil shale samples studied, and it was concluded that the steam injection process is not feasible in these oil shale fields.
Modelling of in situ combustion for Turkish heavy crude oil fields
Kök, Mustafa Verşan (1995-01-01)
Different models were used to determine the possibility of in situ combustion applications for heavy crude oil fields in south-east Turkey. In the first approach a one-dimensional model was developed, in which the frontal advance concept is combined with mass and energy balance equations with certain boundary conditions, limitations and assumptions. The recovery histories of three oil fields were determined; the highest recovery was obtained in field 2 with dry combustion and in field 1 with wet combustion,...
Citation Formats
S. Canbolat, H. Öztürk, and S. Akın, “Mining-Assisted Heavy Oil Production (MAHOP),” presented at the Conference Proceedings, EAGE 2020 Annual Conference & Exhibition, Amsterdam, Hollanda, 2020, Accessed: 00, 2021. [Online]. Available: