Calculation of temperature profile in injection wells

Abstract

Injection wells have long been an essential asset in enhanced oil recovery, wastewater disposal and carbon dioxide sequestration in petroleum industries. The temperature profile of fluid flow in the injection well is one of the main parameters of interest for petroleum engineers to determine optimum injection conditions and wellbore completion design especially in thermal injection projects and deep wells. In this study, the calculation involved in determining the temperature profile along the depth of wellbore has been revised to be newer and more robust via solving governing wellbore equations. The wellbore is segmented into discrete counterparts for it to be solved simultaneously in terms of mass, momentum and energy balance via wellbore governing equations. Five injection cases from the literatures, incompressible and compressible fluid flows, were used to confirm that the procedure is reproducible in terms of its behaviour, which is similar to field data. The new results acquired from the new procedure are in good agreement with field data collected with a maximum absolute error less than 3 °C.

Application of underbalanced tubing conveyed perforation in horizontal wells: A case study of perforation optimization in a giant oil field in Southwest Iran

“…The common practice is to measure the perforation length, diameter, and perforating damage on the core targets in laboratory conditions and correct the lab measured values for subsurface conditions. The success of any perforation operation is mainly dependent upon choosing suitable equipment that meets the field production demands and is compatible with reservoir properties, i.e., sand production, formations with overpressure, and hightemperature gradients (Moradi et al, 2020).…”

Study on Downhole Throttling Characteristics of High Water Content Gas

“…The prediction of wellbore temperature and pressure field has always been a major problem of common concern to scientists [1] because it is related to the accurate construction of oil production technology [2,3], the safety of pipe string [4][5][6], the normal use of various downhole tools [7], the reliability of production process [8], and the wax and scale prevention of oil and gas wells affected by temperature and pressure [9][10][11][12]. Nowadays, in the daily production process of gas wells, the phase change of natural gas in the wellbore is becoming more and more common [13,14].…”

Hydro-Thermal Modeling for Geothermal Energy Extraction from Soultz-sous-Forêts, France

“…Understanding the fluid flowing temperature along the wellbore can be useful for an accurate estimation of the overall heat production at the production wellhead temperature, and for estimating any possible leakage caused by heat loss along the wellbore. Several reliable analytical techniques are reported in the literature to calculate the flowing temperature distribution along a wellbore [35][36][37].…”