eprintid: 1214
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/12/14
datestamp: 2023-11-09 15:49:22
lastmod: 2023-11-09 15:49:22
status_changed: 2023-11-09 15:39:14
type: conference_item
metadata_visibility: show
creators_name: Yee, H.V.
creators_name: Zainal, S.
creators_name: Saaid, I.
title: Transient well performance modeling for reservoir pressure determination
ispublished: pub
keywords: ART model; Bottomhole; Continuous reservoirs; Data availability; Dynamic wells; Engineering concepts; Fluid-phase; Hydrocarbon fluids; Mass transfer rate; Near wellbore; Novel methodology; Production plans; Reservoir fluid; Reservoir pressures; Steady-state flows; Subsurface data; Surface data; Time dimension; Transient behavior; Well intervention; Well performance; Wellbore; Wellbore dynamics; Wellhead pressures, Energy management; Hydrocarbons; Mass transfer; Oil field equipment; Operating costs; Pressure effects; Production control; Wellheads, Fluids
note: cited By 2; Conference of North Africa Technical Conference and Exhibition 2010, NATC 2010 - Energy Management in a Challenging Economy ; Conference Date: 14 February 2010 Through 17 February 2010; Conference Code:80846
abstract: Continuous reservoir pressure data acquisition through intrusive well intervention has always been a challenge to the industry due to a combination of economic, operational and logistical constraints. This paper presents an alternative methodology wherein the reservoir pressure can be computed from the well's steady-state flow properties and wellhead shut-in data using an advanced transient well algorithm. The key research element is the incorporation of mass transfer rate model into dynamic wellbore modeling for shut-in well. A mathematical workflow which incorporates the time dimension as inherited in the mass transfer theory is devised. This is a major advance on prior state-of-the-art models that assume instantaneous mass transfer upon equilibrium. This enhanced dynamic well model is able to simulate the fluid redistribution during well shut-in, by determining an accurate volume of each fluid phase at any cell in the well over time. Hence, the bottom-hole pressure over time can be calculated by adding the static head to the wellhead pressure. The bottom-hole near wellbore reservoir pressure is obtained when the well has reached equilibrium. The model also rigorously accounts for various transient behaviors of the reservoir fluids during shut-in including the reservoir fluid influx. A number of engineering concepts are evaluated and all the elements that become the foundation of this novel methodology are presented. A sample well is used to demonstrate the robustness of the model in simulating the hydrocarbon fluid redistribution during well shut-in. A better description of wellbore dynamic behavior is obtained, ensuring an improved accuracy in transient well performance modeling. This enhanced dynamic well model provides a vital tool for reservoir pressure determination, replacing subsurface data acquisition with surface data acquisition without well intervention. The model enables operating costs reduction associated with subsurface data acquisition, in addition to improve key data availability which will optimize production plans and recovery improvement opportunities. Copyright 2010, Society of Petroleum Engineers.
date: 2010
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77954125793&partnerID=40&md5=477fe43847acc451c54e40eb18addb0b
full_text_status: none
publication: North Africa Technical Conference and Exhibition 2010, NATC 2010 - Energy Management in a Challenging Economy
volume: 1
place_of_pub: Cairo
pagerange: 715-723
refereed: TRUE
isbn: 9781617381072
citation:   Yee, H.V. and Zainal, S. and Saaid, I.  (2010) Transient well performance modeling for reservoir pressure determination.  In: UNSPECIFIED.