... deterministic or stochastic methodologies. In this study, the deterministic approach involved a systematic solution of a series of equations that established crucial correlations between various formation attributes and corresponding log measurements. The methods used for computing porosity from neutron...

... behind the ICD and distribute the fluid precisely. Once the fluid reaches the reservoir face with the accurate pressure, then, using the classical production-engineering equations, the injection rate can be calculated for each zone. Acids usually are injected in carbonate formations to create thin...

... equations and a geomechanics simulator solves solid mechanics equations. The reservoir and geomechanics simulators exchange 3D field data. Because solid mechanics equations are quasistatic, the geomechanics simulator does not take timesteps in full-field coupling. In near-wellbore coupling, however, both...

... The developed algorithm predicts the permeability of a formation at a specific depth based on BHIs. This algorithm employs the finite-element method (FEM) to solve the diffusion equation on the matrix derived from the static BHI. The matrix is obtained by automatically detecting and removing natural and induced...

... by itself (a self-learning controller). The complete paper devotes several pages to equations and parameters that describe HDP. In ADP, optimal control problems are solved, thereby allowing agents to select an optimal action to minimize a long-term cost value through solution of Bellman’s equation. RL...

... health and defect data points. 4. Develop Cumulative Distribution Function (CDF) for Defect Data Points and Obtain Probability of Defect (PD) Equation. A CDF for defect-time durations in days (or any other time unit based on the convention of the model user) must be developed. CDFs provide...

... 8 2022 1 8 2022 1 8 2022 2022. Copyright is held partially by SPE. Contact SPE for permission to use material from this document. drilling equipment annaiyappa adjustment database drilling operation formula information equation upstream oil & gas drilling...

... walk behavior. When forecasting, multiple single-step integrations are being performed in which each step has its own error. Where known values of exogenous variables exist in the future, prediction uncertainty can be greatly ameliorated. In contrast, the differential algebraic equations (DAE...

..., elastic deformation, and contact mechanics at fault surfaces on a fully unstructured mesh. The cell-centered collocated scheme leads to convenient integration of the different physical equations because the unknowns share the same discrete locations on the mesh. Additionally, a multipoint flux...

... wellbore mesh simulator modeling & simulation reservoir simulation particle filtration algorithm wellbore model fracture propagation coupling equation approach couple reservoir simulation filtration TECHNICAL PAPERS | EOR MODELING Approach Couples Reservoir Simulation With Wellbore Model...

... on every cycle. artificial intelligence maximum production rate well stability plunger lift anomaly plunger lift optimization artificial lift system upstream oil & gas optimization algorithm horizontal well critical flow rate gas density operator equation data mining plunger lift...

... university equation data driven machine learning model ml model 25JPT MARCH 2021 Algorithms are taking over the world, or so we are led to believe, given their growing pervasiveness in multiple fields of human endeavor such as consumer marketing, finance, design and manufacturing, health care...

..., continuity and momentum equations are solved for the blocked annulus to estimate the new local velocities. The annulus is divided into small sections, and the pressure profile is calculated with the progression of time. The results from this study agree with large-scale flow-loop experiments and field...

...Trent Jacobs A nearly 70-year-old equation has become the cornerstone of a newly emerged approach to reservoir diagnostics and well appraisal at two of the largest shale companies in the US. With many North American tight-oil producers overseeing low-price-driven shut-ins of horizontal wells...

..., let me provide an example. The downhole rod-driven reciprocating pump has existed since the late 1800s (Beckwith 2014). For a century, the design practices for deter-mining the optimal tolerance between the downhole plunger and barrel were theoretical equations and often used rules of thumb. Too large...

... assumptions. Several components in the cyclic movement of a plunger can be identified, with each comprising a set of specific governing equations. In this paper, a new model is described that considers the gas flow with the plunger moving in the tubing, and accounts for instant velocities during plunger rise...

.... These characteristic features make the CRM (the development of which is outlined in the complete paper) a unique and practical tool to investigate water-flooding projects. Basics of the CRM The root of the CRM is the governing material-balance equation stating that the mass difference in an arbitrary control volume...

... to the drillstring. No analytical model as yet can accurately calculate the tensile and torsional capacities of double-shouldered connections. This paper presents a set of equations that extends the approach of the original single-shouldered equation to account for a second shoulder, and helps to understand...

... of determining downhole annulus pressure include monographs, density equations used to full depth with average pressure and temperature, and density equations used in small depth increments with average temperature and pressure within the increment. An examination of one of these monographs is shown in Fig. 1...

... the kick to come out of solution in the actual well. Background Gas-Kick-Simulation Multiphase-Flow Modeling. The drift-flux model (DFM) used in this work is a mechanistic model consisting of separate mass-balance equations and a combined momentum-balance equation, together with several closure algebraic...