Full text loading...
-
Annular Flow Modelling in in Advanced Well Completion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 3
Abstract
The (A)ICD completion has proved to be an effective solution to mitigate water and gas breakthrough and coning problems. One of the major parameters affecting the (A)ICD completion’s performance is annular flow, the flow of the fluid in the space between the base pipe and the sand-face [1,5]. It is widely accepted, and proven by modelling, that the ICD completions can minimise the annular flow in perfectly horizontal wellbores in perfectly homogeneous reservoirs as no AFI was used in the first ICDs completion in Norway in 1997. The importance of annular flow on the (A)ICD completion was addressed by many researchers. However, there was lack of an analytical annular flow model to integrate the effect of all parameters important contributing to the annular flow.
In This paper, The first analytical formula to address the annular flow for an ICD completion is derived. It is illustrated why a sufficient strength (A)ICD design could reduce the need for AFIs by minimising annular flow in homogeneous reservoirs. The equation also helps obtaining an appropriate strength of (A) ICD completion in such reservoirs.