An Experimental Investigation into Gravel Pack Performance in Steam-Drive Operations
- Morteza Roostaei (RGL Reservoir Management) | Omar Kotb (University of Alberta) | Mahdi Mahmoudi (RGL Reservoir Management) | Vahidoddin Fattahpour (RGL Reservoir Management) | Chenxi Wang (University of Alberta) | Alireza Nouri (University of Alberta) | Brent Fermaniuk (RGL Reservoir Management)
- Document ID
- Society of Petroleum Engineers
- SPE Western Regional Meeting, 22-26 April, Garden Grove, California, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 3 Production and Well Operations, 2.1.3 Completion Equipment, 2.4.3 Gravel pack design & evaluation, 2.2 Installation and Completion Operations, 2 Well completion, 2.4 Sand Control, 3.2 Well Operations and Optimization, 3.2.3 Produced Sand / Solids Management and Control, 3 Production and Well Operations, 5.4.6 Thermal Methods, 3 Production and Well Operations
- Steam-Drive Production, Gravel Packing, Sand Control, Sand Retention Testing (SRT)
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Open hole gravel pack (OHGP) has been broadly used for completion of steam-drive production wells. However, some failures have been observed with the gravel pack in such complex completions. This paper aims to better understand the OHGP performance in steam-drive production wells and examine the performance of rolled-top and straight-cut slotted liners using a large-scale Sand Retention Testing (SRT).
A large-scale SRT facility was developed to investigate the performance of the gravel pack in two-phase flow regime. The testing set-up allows for co-injection of oil and brine at controlled flow rate and water cut level to emulate different scenarios for two-phase flow across the gravel pack and sand screen/liner. Testing measurements included produced sand, absolute pressures, and differential pressure drops across the slotted liner, gravel pack, gravel-sand pack interface and sand pack. The test procedure and test matrix were designed to enable an accurate assessment of the gravel pack and slotted liner performance for different fluid flow scenarios. Rolled-top and straight-cut slotted liner coupons were used for this study.
Test results showed negligible sand production for both rolled-top and straight-cut slotted liners, however the produced sand was slightly higher for the rolled-top profile. The pressure drop across the rolled-top liners were smaller than the straight-cut liners based on the analytical analysis presented in this study. The results have also shown that a key factor in gravel packing performance is the ratio of the gravel pack size to the formation sand (sand pack) size. Larger gravels allow an easier production of the fines, while smaller gravels may trap the fines and be plugged over time.
This work provides a robust testing facility to address the gravel pack performance in steam-drive producer wells. The results help the engineers with gravel pack and sand control design and an evaluation for the entire wellbore life.
|File Size||1 MB||Number of Pages||18|
Mahmoudi, M.,Nejadi, S.,Roostaei, M.. 2017b. Design Optimization of Slotted Liner Completions in Horizontal Wells: An Analytical Skin Factor Model Verified by Computational Fluid Dynamics and Experimental Sand Retention Tests. Presented at SPE Thermal Well Integrity and Design Symposium, 28-30 November, Banff, Alberta, Canada, SPE-188167-MS.
Mahmoudi, M.,Fattahpour, V.,Wang, C.. 2018. A Large-Scale Sand Retention Test Facility for Evaluation and Selection of Optimal Standalone Sand Screen for Injection Wells in Thermal Operations. Presented at SPE International Conference and Exhibition on Formation Damage Control, 7-9 February, Lafayette, Louisiana, USA, SPE-189557-MS.
Roostaei, M.,Nouri, A.,Fattahpour, V.. 2018. Sand Control Design through Assessment of Mathematical Models Representing Particle Size Distribution of Reservoir Sands. Presented at SPE International Conference and Exhibition on Formation Damage Control, 7-9 February, Lafayette, Louisiana, USA, SPE-189528-MS.