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Australian Energy Producers Journal Australian Energy Producers Journal Society
Journal of Australian Energy Producers
RESEARCH ARTICLE (Non peer reviewed)

New method of controlling excessive water production in wells using induced formation damage

Abbas Zeinijahromi A and Pavel Bedrikovetski A
+ Author Affiliations
- Author Affiliations

The University of Adelaide.

The APPEA Journal 55(2) 485-485 https://doi.org/10.1071/AJ14120
Published: 2015

Abstract

Excessive water production is a major factor in reduced well productivity. This can result from water channelling from the water table to the well through natural fractures or faults, water breakthrough in high permeability zones, or water coning.

The use of foams or gels for controlling water production through high-permeable layers has been tested successfully in several field cases.

A large treatment volume, however, is required to block the water influx that generally involves high operational and material costs.

This extended abstract proposes a new cost-effective method of creating a low-permeable barrier against the produced water with induced formation damage. The method includes applying induced formation damage to block the water influx without hindering the oil production.

This can be achieved by injection of a small slug of fresh water into the water-producing layer. This results in release of in situ fines from the matrix, which can decrease permeability and create a local low-permeable barrier to the producing water.

In large-scale approximation, water injection with induced fines migration is analogous to polymer flooding. This analogy is used to model the fresh water with induced formation damage.

Sensitivity studies showed that the injection of 0.01 PVI of fresh water resulted in the blockage of the water-producing layer and an incremental recovery by 8% in field case A, with respect to the standard production scenario. The authors found that the incremental gas recovery with induced formation damage was sensitive to reservoir heterogeneity, permeability reduction and slug volume.

Abbas Zeinijahromi is a lecturer in petroleum engineering at the Australian School of Petroleum at the University of Adelaide, carrying out theoretical work, experimental studies and reservoir simulation of formation damage and IOR. He holds a PhD in Petroleum engineering from the University of Adelaide, an MSc in reservoir engineering and a BSc in production engineering.

Pavel Bedrikovetski is author of two books in reservoir engineering and has published 150 technical papers in international journals and SPE. His research covers formation damage and IOR. He holds an MSc in applied mathematics, a PhD in fluid mechanics and a DSc in reservoir engineering from Moscow Oil-Gas Gubkin University. In 1991–94, he was a visiting professor at Delft University of Technology and at the Imperial College of Science and Technology. Since 1994, Pavel has been a Petrobras staff consultant. He holds the chair in Petroleum Engineering at the University of Adelaide. He has served as section chairman, short course instructor, key speaker and steering committee member at several SPE Conferences. He was 2008–09 SPE distinguished lecturer.

Raymond (Ray) Johnson, Jr. is a principal at Unconventional Reservoir Solutions, adjunct associate professor at the University of Adelaide and adjunct fellow at the University of Queensland. He has a PhD in mining engineering, an MSc in petroleum engineering, a graduate diploma in information technology and a BA in chemistry. Ray has been active in the SPE, he is a past chair of the SPE Queensland Section, 2013 co-chair of the SPE Unconventional Reservoir Conference and Exhibition Asia Pacific and he will be the 2015 co-chair of the SPE Unconventional Reservoir Conference and Exhibition Asia Pacific. Member: SPE, PESA, SPWLA, ISRM, AusIMM.


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