Results 11 to 20 of about 2,284,708 (212)
Numerical Investigation of Wellbore Stability in Deepwater Shallow Sediments
An elaborate poro-elastoplastic numerical model has been developed in this paper to explore the stability characteristics of wellbore in shallow sediments of deepwater oil/gas wells.
Wei Liu +5 more
doaj +2 more sources
Stability Analysis of Near-Wellbore Reservoirs Considering the Damage of Hydrate-Bearing Sediments
The stability of hydrate-bearing near-wellbore reservoirs is one of the key issues in gas hydrate exploitation. In most previous investigations, the damage evolution process of the sediment structure and its effect on near-wellbore reservoir stability ...
Xiaoling Zhang +3 more
doaj +2 more sources
Analysis of Wellbore Stability considering the Interaction between Fluid and Shale
Reservoir shale has the characteristics of bedding planes, strong anisotropy, and strong imbibition ability under ultralow water saturation, which has an important impact on wellbore stability of horizontal wells.
Long Chang +7 more
doaj +2 more sources
3D finite element modelling of multilateral junction wellbore stability
Wellbore failure can occur at different stages of operations. For example, wellbore collapse might happen during drilling and/or during production. The drilling process results in the removal of an already stressed rock material.
Assef Mohamad-Hussein, Juliane Heiland
doaj +2 more sources
Simulation of Wellbore Stability during Underbalanced Drilling Operation [PDF]
The wellbore stability analysis during underbalance drilling operation leads to avoiding risky problems. These problems include (1) rock failure due to stresses changes (concentration) as a result of losing the original support of removed rocks and (2 ...
Reda Abdel Azim
doaj +2 more sources
Wellbore stability in geomechanics [PDF]
Borehole instabilities can be encountered at any stage in the life of a well and they are the main cause of drilling difficulties, resulting in substantial expenditures, expensive loss of time, sometimes even in the loss of part of or even whole boreholes.
Xu, Guangquan
openaire +3 more sources
The past decade has seen increased focus on nanoparticle (NP) based drilling fluid to promote wellbore stability in shales. With the plugging of NP into shale pores, the fluid pressure transmission can be retarded and wellbore stability can be improved ...
Jiwei Song +6 more
doaj +2 more sources
Study on the Vertical Stability of Drilling Wellbore under Optimized Constraints
With the development of coal resource extraction and wellbore construction proceeding towards deeper depths, the stability of drilling wellbore structures has become increasingly severe, even posing a barrier to the use of drilling method technology in ...
Ruixue Pan +3 more
doaj +2 more sources
According to the transversely isotropic theory and weak plane criterion, and considering the mechanical damages due to stress unloading and hydration during drilling, a shale wellbore stability model with the influence of stress unloading and hydration ...
Yi DING +7 more
doaj +1 more source
Thermoporoelastic wellbore stability model with local thermal non-equilibrium [PDF]
Wellbore stability is a key challenge for the exploration and production industry since it adds a great deal of additional cost. Traditional wellbore stability models such as elastic and poroelastic models are not sufficient in modeling the stability and
Gandomkar, Arjang
core +1 more source

