NDLI: A New Completion Methodology to Improve Oil Recovery for Horizontal Wells Completed in Highly Heterogeneous Reservoirs

Content Provider	Springer Nature Link
Author	Luo, Wei Li, Hai tao Wang, Yong qing Wang, Jun chao Zhu, Shi yan
Copyright Year	2014
Abstract	The specific inflow distribution along the horizontal wellbore is significantly uneven in highly heterogeneous reservoirs. Such uneven influx is recognized as the cause of early water breakthrough, poor oil sweep efficiency and low ultimate recovery. Interval control valves (ICVs) are practical completion hardwares that can actively equalize the contributions from all controlled zones. However, the wellhead penetration limitation impedes ICVs’ application in highly heterogeneous reservoirs, which require many control intervals. This paper proposes a new completion methodology that combines ICVs and variable-density perforations (ICVs + VDP) to eliminate the limitation of ICVs applied in highly heterogeneous reservoirs. The ICVs + VDP completion can achieve more subtle controls because VDP is capable of reducing the inflow difference in each subzone. A steady-state modeling approach and a transient-state modeling approach are used to evaluate the effect of the ICVs + VDP completion on inflow equalization and well performance optimization. The observations from case study show that horizontal wells with the ICVs + VDP completion can considerably delay water breakthrough, improve oil recovery, and reduce water production in highly heterogeneous reservoirs.
Starting Page	9227
Ending Page	9237
Page Count	11
File Format	PDF
ISSN	13198025
Journal	Arabian Journal for Science and Engineering
Volume Number	39
Issue Number	12
e-ISSN	21914281
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Interval control valves Variable-density perforations Horizontal wells Highly heterogeneous reservoirs Engineering Science
Content Type	Text
Resource Type	Article

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