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A platform for research: civil engineering, architecture and urbanism
Modelling Stress Distribution Around Boreholes
The stress distribution around boreholes plays an important role for wellbore problems. This study aims to model the stress distribution around boreholes of offshore petroleum wells. The stress model around boreholes, which is associated with the in-situ stresses, rock properties as well as the wellbore pressure and configuration, is developed. The new approach uses transformation formula of a full stress tensor including its orientations and magnitudes. A calculating program for the stress analysis of wellbores (SAoWB), which is written in Matlab language, has described and calculated all components of the stress tensor at the wellbore wall as well as around boreholes. In this study, case studies are considered using the program SAoWB based on the new approach. The field case studies are applied for boreholes of the studied wells at Cuu Long basin, offshore Vietnam. The obtaining results from our program SAoWB are in good agreement with the failure observations from high solution image logs of the studied wellbore as well as coring data. They are the bases to study its implications which benefit for offshore petroleum industry activities such as wellbore stability, optimum drilling wellbore trajectories for well planning, drilling mud selection, sanding prediction and control, hydraulic fracturing, etc. Modelling the stress distribution around boreholes from the program SAoWB not only enhances knowledge of in-situ stress tensors but also impacts on well problems, especially for offshore petroleum wells.
Modelling Stress Distribution Around Boreholes
The stress distribution around boreholes plays an important role for wellbore problems. This study aims to model the stress distribution around boreholes of offshore petroleum wells. The stress model around boreholes, which is associated with the in-situ stresses, rock properties as well as the wellbore pressure and configuration, is developed. The new approach uses transformation formula of a full stress tensor including its orientations and magnitudes. A calculating program for the stress analysis of wellbores (SAoWB), which is written in Matlab language, has described and calculated all components of the stress tensor at the wellbore wall as well as around boreholes. In this study, case studies are considered using the program SAoWB based on the new approach. The field case studies are applied for boreholes of the studied wells at Cuu Long basin, offshore Vietnam. The obtaining results from our program SAoWB are in good agreement with the failure observations from high solution image logs of the studied wellbore as well as coring data. They are the bases to study its implications which benefit for offshore petroleum industry activities such as wellbore stability, optimum drilling wellbore trajectories for well planning, drilling mud selection, sanding prediction and control, hydraulic fracturing, etc. Modelling the stress distribution around boreholes from the program SAoWB not only enhances knowledge of in-situ stress tensors but also impacts on well problems, especially for offshore petroleum wells.
Modelling Stress Distribution Around Boreholes
Lecture Notes in Civil Engineering
Ha-Minh, Cuong (editor) / Dao, Dong Van (editor) / Benboudjema, Farid (editor) / Derrible, Sybil (editor) / Huynh, Dat Vu Khoa (editor) / Tang, Anh Minh (editor) / Do Quang, Khanh (author) / Tam, Thanh Nguyen Thi (author) / Kieu, Phuc (author) / Huynh, Nhan Vo (author)
2019-10-11
6 pages
Article/Chapter (Book)
Electronic Resource
English
In-Situ Stress , Stress Distribution , Stress Model , Boreholes , Failure Observations Engineering , Geoengineering, Foundations, Hydraulics , Sustainable Development , Landscape/Regional and Urban Planning , Structural Materials , Building Construction and Design , Transportation Technology and Traffic Engineering
Mechanics of rock fracturing around boreholes
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Permeability impairment around boreholes in micaceous aquifers
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Influence of stress-dependent elastic moduli on stresses and strains around axisymmetric boreholes
| Springer Verlag | 1989
Influence of stress-dependent elastic moduli on stresses and strains around axisymmetric boreholes
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