Pseudo-steady state inflow performance relationship of reservoirs undergoing multiphase flow and different wellbore conditions

Al-Rbeawi, Salam
This paper introduces an integrated approach for the inflow performance relationship of reservoirs that undergo multiphase flow conditions and drained by vertical wells with different wellbore conditions. The main objective is eliminating uncertainties that govern predicting reservoir performance by assuming single phase flow in the porous media. The proposed approach includes developing several models for multiphase flow conditions using PVT data and relative permeability curves. These models are assembled with the inflow performance relationship to substantially approaching the realistic reservoir pressure/flow rate trend with time.


Integrated deterministic approaches for productivity index of reservoirs depleted by horizontal wells and undergone multiphase flow conditions
Al-Rbeawi, Salam (Elsevier BV, 2019-04-01)
This paper introduces new integrated approaches for estimating pseudo-steady state productivity index (PI) and shape factor of oil and gas reservoirs drained by horizontal wells and dominated by multiphase flow conditions. These approaches couple PVT data, relative permeability curves, and pressure distribution models during pseudo-steady state flow (PSS). The objective is eliminating the uncertainties of applying single phase flow models and substantially comprising the realistic parameters that govern mul...
Integrated analysis of pressure response using pressure-rate convolution and deconvolution techniques for varied flow rate production in fractured formations
Al-Rbeawi, Salam (Elsevier BV, 2018-03-01)
This paper introduces an integrated analysis for pressure transient behavior of conventional and unconventional multi-porous media reservoirs considering varied flow rate conditions. It focuses on the applications of pressure-rate convolution and deconvolution techniques for analyzing pressure records of homogenous single porous media, double porous media, and triple porous media reservoirs. The tasks covered in this paper are: Deconvloving pressure response, characterizing and developing analytical models ...
Fluid flux throughout matrix-fracture interface: Discretizing hydraulic fractures for coupling matrix Darcy flow and fractures non-Darcy flow
Al-Rbeawi, Salam; Owayed, Jalal F. (Elsevier BV, 2020-01-01)
The objective of this paper is focusing deep insights on reservoir fluid flux from a structurally complicated matrix to non-uniformly propagated hydraulic fractures. A hypothetical unconventional reservoir is considered with stimulated and un-stimulated reservoir volume. A Semi-analytical multilinear flow regimes model is developed for pressure distribution by coupling matrix Darcy flow model and hydraulic fracture non-Darcy flow model. Hydraulic fractures are discretized to several segments with a specific...
Flow-Regime-Based Inflow-Performance Relationships of Unconventional Fractured Reservoirs
Al-Rbeawi, Salam (Society of Petroleum Engineers (SPE), 2020-08-01)
The main objective of this paper is to develop a new approach for constructing the inflow-performance relationships (IPRs) of unconventional reservoirs. The proposed approach focuses on using transient- and pseudosteady-state-flow regimes in developing integrated analytical models for wellhead deliverability and wellbore-pressure decline considering the two wellbore conditions, constantsandface-flow rate and constant wellbore pressure. The motivation is to reduce the uncertainties in predicting current and ...
Characterization of tight-gas sand reservoirs from horizontal-well performance data using an inverse neural network
Kulga, B.; Artun, E.; Ertekin, T. (Elsevier BV, 2018-11-01)
Characterization of a tight-gas sand formation using data from horizontal wells at isolated locations is challenging due to the inherent heterogeneity and very low permeability characteristics of this class of resources. Furthermore, characterizing the uncontrollable hydraulic-fracture properties along the horizontal wellbore requires financially demanding and time-consuming operations. In this study, a reservoir characterization model for tight-gas sand reservoirs is developed and tested. The model describ...
Citation Formats
S. Al-Rbeawi, “Pseudo-steady state inflow performance relationship of reservoirs undergoing multiphase flow and different wellbore conditions,” JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: