... leak-off coefficient from the rate of change in the fracture aperture at the wellbore. These results were established assuming that no fluid is leaking from the closed section of the fracture. In this paper, we explore the viability of the procedure to estimate the Carter leak-off coefficient using...

... ABSTRACT: An open-hole extension limit prediction model of extended-reach drilling (ERD) in the cold sea area of the Arctic is established, considering wellbore stability and temperature field. The widely used open-hole extension limit model primarily relies on the concept of wellbore...

.... This article reports the testing of a new method for injecting a fluid through a cased borehole drilled in a cylindrical rock sample subjected to in-situ stress conditions in a conventional axisymmetric triaxial stress vessel. We use rock samples 1.5 inch in diameter in which a 2-mm wellbore can be drilled...

... in porous media concentration diffusion salt lake city geoscience institute hydrogen concentration university configuration wellbore methane utah variation gradient interface ARMA 24 0623 Understanding Hydrogen Flow in Depleted Natural Gas Reservoirs Palash Panja Energy & Geoscience...

... permeability wellbore dioxide equation of state reservoir geomechanics propagation engineering journal simulation coefficient characteristic expansion coefficient ARMA 24 647 Fracture Initiation and Propagation Characteristics of SC-CO2 Fracturing in Hot Dry Rock: A Coupled Thermal...

... concept of machine learning to predict the seat sealing dynamics of temporary plugging balls in horizontal wellbores. Adopting the coupled CFD-DEM method, a sophisticated three-dimensional model of a horizontally drilled well with helical perforations is crafted to meticulously simulate authentic field...

... the appropriate acid pump rate of 1.4 bpm and 1.0 bpm respectively, the acid-etched wormhole can be effectively formed to improve the reservoir permeability. At a reasonable pump rate, when the volume of acidizing fluid is less, acidification only acts on a small area near the wellbore; with the increasing volume...

... reservoir geomechanics silicate pegmatite permeability reservoir simulation reservoir surveillance reservoir characterization concentration deposit lithium ion rock type production control spodumene pegmatite deposit experiment sharma reaction acid unfractured pegmatite wellbore...

... ABSTRACT: A systematic approach is used to assess the leakage risk of legacy wellbores using available wellbore information from a site in Louisiana, USA. The proposed approach assesses potential risk of groundwater contamination resulting from fluid leakage in legacy wells associated...

... that are likely limited in producible fluids. Among the other challenges associated with in-situ HPHT environments, the injection of lower-temperature water imposes further complexity on the stress conditions due to dynamic thermomechanical interactions. Understanding its influence on wellbore stability...

...-uniform injection, poor oil recovery, fault activation, and even earthquakes. By redistributing the injected flow along the wellbore, Inflow Control Devices (ICDs) can significantly influence oil recovery. In this study, a fully coupled reservoir-fracture-wellbore simulator is applied, (a) to study...

... ABSTRACT: This paper focuses on the development of a rigorous analytical solution for the drained wellbore drilling problem in a non-associated Mohr-Coulomb rock formation subjected to hydrostatic in-situ stress field, for a specific case that the axial/vertical stress is strictly...

... predict the heating range and heating temperature. geologist complex reservoir reservoir characterization geology heavy oil play unconventional play permittivity wellbore frequency rf heating reservoir effect rf heating heavy oil reservoir petroleum play type electromagnetic heating...

... is exchanged with the wellbore assembly, and the ice volume of water in the oil casing annulus expands, resulting in frost heaving force which damages the tubing casing and shorens the life of the wellbore. Based on the theory of fluid-solid heat transfer and phase transformation, a tubing-casing - cement ring...

... ABSTRACT: Stress concentration in vicinity of a wellbore may suppress fracture network and restrict the fluid flux in naturally fractured reservoirs (NFR). Primarily reducing the absolute permeability in the fracture network, such an impact may be reach a significant level when productivity...

... not only consider variable mass flow in horizontal wellbore, but also different combinations of multiple branches. The results of field case and sensitivity analysis show that the productivity of multilateral wells decreases with the increase of gas-water volume ratio and reservoir stress sensitivity...

... ABSTRACT: Deep water is rich in oil and gas resources, which is of great significance to world energy. However, its reservoir geological conditions are complex, the drilling safety density window is narrow, the wellbore pressure is difficult to control, overflow, kick and other accidents...

... of the common drilling risks. The fundamental reason for the kick is that the bottom hole pressure is lower than the formation pressure during the drilling process. Then the formation fluid invades the wellbore, causing the volume of fluid in the wellbore to instantly increase and kick from the wellhead. When...

... ABSTRACT: Addressing the technical challenge of fluid accumulation in Changning shale gas wellbores, we employed the Beggs Brill model to establish a tubing pressure drop calculation model. By integrating this model with the calculation model for annular static gas column pressure and fitting...

... and permeability field under the elastic wave is obtained by numerical superposition method. Then, the branch of horizontal wellbore is equivalent to a finite linear radiator, the wave field constructed as a superposition of fields generated by branches in all. And we simulated for different branches cases...