Sand Control Testing for Steam Injection Wells
- V. Fattahpour (RGL Reservoir Management Inc.) | M. Mahmoudi (RGL Reservoir Management Inc.) | M. Roostaei (RGL Reservoir Management Inc.) | C. Wang (University of Alberta) | O. Kotb (University of Alberta) | A. Nouri (University of Alberta) | C. Sutton (RGL Reservoir Management Inc.) | B. Fermaniuk (RGL Reservoir Management Inc.)
- Document ID
- Society of Petroleum Engineers
- SPE Canada Heavy Oil Technical Conference, 13-14 March, Calgary, Alberta, Canada
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 5.3.9 Steam Assisted Gravity Drainage, 2 Well completion, 2.2 Installation and Completion Operations, 3.2.3 Produced Sand / Solids Management and Control, 2.1.3 Completion Equipment, 3.2 Well Operations and Optimization, 2.4 Sand Control, 4.3.4 Scale, 3 Production and Well Operations, 5.4.6 Thermal Methods
- slot density, Injection Wells, slot width, Sand Control, SAGD
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Injector wells in thermal field developments in Western Canada are usually completed by slotted liners. The purpose of liner installation is preventing sand production after a shut-in, keeping a stable wellbore, and providing an appropriate steam distribution. The objective of this paper is to quantify the role of slot width and slot density on the sanding performance of the liner in cycles of injection and shut-in in a SAGD injection well, through a series of laboratory sand control tests.
A large-scale sand retention testing facility was developed and employed to conduct a series of tests on slotted liner coupons with different slot widths and densities. These tests were tailored to simulate steam injection and backflow during the shut-in. Three representative particle size distributions for the McMurray Formation were used in this study ranging from coarse to fine sand. The experimental set-up allows to measure the amount of produced sand.
Since the produced sand in steam injection wells is not usually cleaned out, the acceptable threshold for sand production in the injector should be more conservative than the same for producer wells. Testing results indicate that the sand control performance of the liner is governed by the slot width and density, and formation particle size distribution. Results indicate a negligible amount of produced sand with gas backflow for a properly designed liner even at very high gas velocities.
Historically, there has been little attention to the sand control design for injector wells. This work highlights the significance of slot density and slot width in the sand control performance for steam injection wells. The paper provides the basis for the proper design of an effective sand control in SAGD injectors.
|File Size||2 MB||Number of Pages||17|
Mahmoudi, M., Roostaei, M., and Ghalambor, A. 2016a. Sand Screen Design and Optimization for Horizontal Wells Using Reservoir Grain Size Distribution Mapping. Presented at the SPE International Conference and Exhibition on Formation Damage Control, 24-26 February, Lafayette, Louisiana, SPE-179036-MS.
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. Prepared for presentation at the SPE International Conference and Exhibition on Formation Damage Control held in Lafayette, Louisiana, USA, 7-9 February. SPE-189557-MS.
Santarelli, F.J., Sanfilippo, F., Embry, J-M.. 2011. The Sanding Mechanisms of Water Injectors and their Quantification in Terms of Sand Production: Example of the Buuzard Field (UKCS). Presented at SPE Annual Technical Conference and Exhibition, 30 October-2 November, Denver, Colorado, USA. SPE-146551-MS