Research On Pressure Distribution And Heat Transfer Of Steam Injected In Wellbores

With the exploration and development of petroleum,as well as the soaring worldwide demand for oil,the exploitation of heavy oil reservoir becomes more and more important.Steam flooding is the main way to develop the Heavy oil reservoir.Because of its complicated in technique,high investment and economy risk,before the development,various parameters of steam soak must be compared and analyzed,optimization the thermal systems.In thermal operations,it is very important to predict pressure distribution,temperature and gland of steam in steam injection wells for the whole production.This paper gives the pressure distribution and heat loss mathematic models according to heat transfer and two phase flow principle,and revises well-bore heat transmission into steady-state heat transfer in the well-bore and unsteady-state conduction in the formation,and has choose the B-B way and the Ramey way to solve the pressure distribution due to fiction and to solve heat the quantity of the wet steam inside the tube.By the analysis of calculate result,we can use date and curve to explain these parameter affecting parameter the entry steam.It can optimize the operating parameter and lead the operating work of pouring steam.In the end above-mentioned calculation is made into the procedure.