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Collaborating Authors
Balgobin, Amrit Stefan
Performance of Bonded Bead Sand Screen as Remedial Sand Control in Highly Erosive Environment
Chandrakant, Ashvin Avalani (PETRONAS Carigali Sdn. Bhd.) | Muhammad Yusof, Aqil (PETRONAS Carigali Sdn. Bhd.) | M Zin, Zulkifli (PETRONAS Carigali Sdn. Bhd.) | Rosland, Eadie Azahar (PETRONAS Carigali Sdn. Bhd.) | Balgobin, Amrit Stefan (Baker Hughes) | Li Ren, Chung (Baker Hughes) | McClean, Charlie Alexander (Baker Hughes)
Abstract Sand production remains one of the major challenges in managing mature fields in Malaysia. Wells that experience severe sand production due to primary sand control failure and are uneconomical for workovers require a remedial solution to continue producing without compromising asset integrity. In these cases, operators rely heavily on Through-Tubing Sand Screen (TTSS), however the applications remain limited due to short TTSS lifespan especially in highly erosive environment. Frequent changeout is economically and operationally not feasible with increased intervention risk. Therefore, most high Gas-Oil Ratio (GOR) wells remain closed-in today, in need of a durable sand screen that can withstand high erosional velocity. Various types of Erosion Resistant Through-Tubing Sand Screens (ER-TTSS) have been implemented to test their durability and longevity in these wells. This paper will discuss the performance of Malaysia's first installation of bonded bead sand screen in Well A. In contrast to conventional wire wrap or mesh filtration media, bonded bead sand screen incorporates tightly fused beads in cartridge form that act as depth filter to exclude sand, installed on a flushed perforated base pipe. The design is expected to provide superior erosion resistance performance as compared to conventional metallic sand screen. Prior to installation, Computational Fluid Dynamic (CFD) simulation and Sand Retention Test (SRT) were conducted to determine potential erosion rate at the targeted flow rate and optimum bead size, respectively. During the 3 months pilot installation period, vigilant surface sand monitoring was in place, aided by real-time Acoustic Sand Monitoring (ASM) and Ultrasonic Flowline Thickness measurement (RT-UT). Well flowing parameters were also monitored closely to ensure that well is flown within the target parameters. Bonded bead sand screen was then retrieved post 3 months effective flowing period for detailed inspection, teardown and evaluation. Second screen were then installed for a period of > 6 months as part of the replication. Several criteria were identified as key performance indicators to evaluate the effectiveness of this technology. The outcome of pilot installation, teardown findings and subsequent replacement of bonded bead sand screen in Well A will be discussed. Recommendations for future optimization will also be included to ensure that bonded bead sand screen remains as one of the competent through-tubing sand solutions, especially for high GOR wells.
- Asia > Malaysia (0.54)
- North America > United States > Texas (0.46)
Remedial Sand Control Deployment in Mature Fields: Performance Review of Pilot Installation of Bonded Bead Sandscreen in High Gas-Oil Ratio Well at Offshore East Malaysia Using Slickline
McClean, Charlie Alexander (Baker Hughes) | Balgobin, Amrit Stefan (Baker Hughes) | Wilson, Steve Bryant (Baker Hughes) | Odairi, Ogagaoghene (Baker Hughes) | Higginbotham, Jeffrey Allan (Baker Hughes)
Abstract Sand production remains one of the major challenges in managing mature fields in Malaysia. Wells that experience severe sand production due to primary sand control failure require remedial solutions to continue producing without jeopardizing asset integrity. In these cases, operators rely heavily on through-tubing metallic sandscreen (TTSS), however, the applications remain limited due to the short TTSS lifespan, especially in wells in a high erosive environment. With increased intervention risk, frequent replacement is both economically and operationally unfeasible. Therefore, most high gas-oil ratio (HGOR) wells remain closed-in today, in need of a durable sand screen that can withstand high erosional velocity. Various types of erosion resistant through-tubing sand screens (ER-TTSS) have been implemented to test their sustainability and longevity in highly erosive environments. Additional challenges can be associated with the actual deployment of these remedial solutions into mature wells. This paper will discuss the performance of Malaysia's first installation of bonded bead sandscreen in HGOR well, Well #1 at offshore East Malaysia. Instead of using conventional mesh or wire wrapped type as filtration media, bonded bead sandscreen incorporates tightly bonded beads to filter sand and is expected to have superior performance over conventional metallic TTSS. Prior to installation, computational fluid dynamic (CFD) simulation and sand retention test (SRT) were conducted to determine sand erosion risk and optimize the screen design for Well #1. The information gathered from the CFD was then utilized to optimize the tubular components and minimize the effect of erosion on the complete bottom hole assembly (BHA). Additionally, well #1 was on an unmanned production platform; therefore, the deployment options for this intervention had to be considered during the early planning phase of the operation. A combination of slickline unit with suitable pressure control equipment was selected to minimize personnel on board and match deck load limitations while ensuring proper service delivery. The outcome of pilot testing of bonded bead sandscreen in Well #1 will be discussed. Recommendations for future optimization will also be included to ensure that bonded bead sandscreen remains one of the competent through-tubing sand solutions, especially for HGOR wells. Furthermore, the operational techniques that were utilized to reduce the operational risk and costs will be discussed in order to demonstrate how such wells can be intervened in a cost-effective manner to extend the asset's life.
- Asia > Malaysia (1.00)
- North America > United States > Texas (0.28)