The Effect of Production-Logging-Tool Data on Scale-Squeeze Lifetime and Management of Scale Risk in Norwegian Subsea Production Wells: A Case Study
- Myles M. Jordan (Nalco Champion)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- October 2019
- Document Type
- Journal Paper
- 2019.Society of Petroleum Engineers
- Norway, subsea, inorganic scale, squeeze treatment, PLT data
- 4 in the last 30 days
- 15 since 2007
- Show more detail
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Because of the higher cost of scale management for subsea (SS) operations compared with platform or onshore fields, and because of the more limited opportunities for interventions, it is becoming increasingly important to obtain and use real production data from wells rather than estimated zone flow contribution from simple permeability (k) and height (h) models for scale-squeeze-treatment design.
In this paper I discuss how scale-squeeze treatments were designed (coreflood evaluation of inhibitor retention/release) and deployed for three SS heterogeneous production wells. A permeability model and a layer-height model were initially developed for each well using detailed geological log data, estimated water/oil-production rates, and the predicted water-ingress location within the wells. Two wells were each treated three times using bullhead scale-squeeze treatments, with effective scale control being reported over the designed lifetime. A production log was acquired before the fourth squeeze campaign of these two wells. This information was incorporated into the squeeze simulation to allow review of the ongoing third squeeze and enhance design accuracy for the upcoming fourth squeezes. A third well was treated twice before production-logging data became available, and the performance of treatments to this well is also assessed.
The production-logging-tool (PLT) data proved very important in changing the understanding of fluid placement and the water-ingress location during production, resulting in changes to the isotherm values used to achieve effective history match to the inhibitor returns (with PLT data incorporated in all three wells), and most significantly affecting the squeeze lifetimes. It was possible to significantly extend the treatment lifetime of two of the wells (cumulative produced water to minimum inhibitor concentration), while the treatment life of one well was greatly reduced because of the PLT-data-modified model predictions.
In this paper I outline the process of reservoir/near-wellbore modeling that is used for most initial squeeze-treatment service companies deployed in the North Sea. I will highlight in detail the value that PLT data can provide to improve the effectiveness of squeeze treatments in terms of understanding of fluid placement during squeeze deployment and water-ingress location within heterogenous production wells. The intention of this paper is to highlight the value that these types of data can provide to improve scale management (squeeze treatment and water shutoff) such that the value created more than offsets the cost of acquiring such information for SS production wells.
|File Size||1 MB||Number of Pages||19|
Børeng, R., Sorbie, K. S., and Yuan, M. D. 1994. The Underlying Theory and Modelling of Scale Inhibitor Squeezes in Three Offshore Wells on the Norwegian Continental Shelf. Oral presentation given at the NIF International Oil Field Chemicals Symposium, Geilo, Norway, 20–23 March.
Bourne, H. M., Booth, S. L., and Brunger, A. 1999. Combining Innovative Technologies To Maximize Scale Squeeze Cost Reduction. Paper presented at the SPE International Symposium on Oilfield Chemistry, Houston, Texas, USA, 16–19 February. SPE-50718-MS. https://doi.org/10.2118/50718-MS.
Collins, I. R., Stewart, N. J., Wade, S. R. et al. 1997. Extending Scale Squeeze Lifetimes Using a Chemical Additive: From the Laboratory to the Field. Oral presentation given at the Solving Oilfield Scaling Conference, Aberdeen, Scotland, UK, 23–24 January.
Graham, G. M. and Mackay, E. J. 2000. Scale Inhibitor Selection Criteria for Downhole (SQUEEZE) Application in a Chalk Reservoir. Oral presentation given at the 4th International Conference and Exhibition on Chemistry in Industry, Manama, Bahrain, 30 October–1 November.
Graham, G. M., Dyer, S. J., Shone, P. et al. 2001a. High Temperature Core Flooding Experiments for the Selection of Appropriate Scale Inhibitor Products for Potential Application as Downhole Squeeze Treatments in High Temperature Reservoir Environments. Paper presented at the International Symposium on Oilfield Scale, Aberdeen, Scotland, UK, 30–31 January. SPE-68314-MS. https://doi.org/10.2118/68314-MS.
Graham, G. M., Wattie, I., Mackay, E. J. et al. 2001b. Scale Inhibitor Selection Criteria for Downhole (SQUEEZE) Application in High Volume Horizontal Wells in a Fractured Chalk Reservoir. Paper prepared for the SPE International Symposium on Oilfield Chemistry, Houston, Texas, USA, 13–16 February, 1–13.
Jordan, M. M. 2009. The Modelling, Application and Monitoring of Scale Squeeze Treatments in Heterogeneous Reservoirs, North Sea. Paper presented at the SPE International Symposium on Oilfield Chemistry, The Woodlands, Texas, USA, 20–22 April. SPE-121142-MS. https://doi.org/10.2118/121142-MS.
Jordan, M. M. and Mackay, E. J. 2009. The Challenge of Modelling and Deploying Diversion for Subsea Scale Squeeze Applications. Paper presented at the 8th European Formation Damage Conference, Scheveningen, The Netherlands, 27–29 May. SPE-121376-MS. https://doi.org/10.2118/121376-MS.
Jordan, M. M., Egderton, M., and Mackay, E. J. 1999. Application of Computer Simulation Techniques and Solid Divertor To Improve Inhibitor Squeeze Treatments in Horizontal Wells. Paper presented at the SPE International Symposium on Oilfield Chemistry, Houston, Texas, USA, 16–19 February. SPE-50713-MS. https://doi.org/10.2118/50713-MS.
Jordan, M. M., Mackay, E. J., and Vazquez, O. 2008. The Influence of Overflush Fluid Type on Scale Squeeze Life Time—Field Example and Placement Simulation Evaluation. Paper presented at Corrosion 2008, New Orleans, Louisiana, USA, 16–20 March. NACE-08356.
Jordan, M. M., Edgerton, M. C., Cole-Hamilton, J. et al. 1998. The Application of Novel Wax Divertor Technology To Allow Successful Scale Inhibitor Squeeze Treatment into a Sub Sea Horizontal Well, North Sea Basin. Paper presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA, 27–30 September. SPE-49196-MS. https://doi.org/10.2118/49196-MS.
King, G. E. and Warden, S. L. 1989. Introductory Work in Scale Inhibitor Squeeze Performance: Core Tests and Field Results. Paper presented at the SPE International Symposium on Oilfield Chemistry, Houston, Texas, USA, 8–10 February. SPE-18485-MS. https://doi.org/10.2118/18485-MS.
Mackay, E. J. 2000. Modelling Chemical Displacement in Corefloods and the Near-Well Formation To Optimise Treatments and Minimise Environmental Damage. Paper presented at ECMOR VII–7th European Conference on the Mathematics of Oil Recovery, Baveno, Italy, 5–8 September. https://doi.org/10.3997/2214-4609.201406117.
Mackay, E. J. 2001. SQUEEZE Modelling: Current Best Practice and New Capabilities. Paper presented at the International Symposium on Oilfield Scale, Aberdeen, Scotland, UK, 30–31 January. SPE-68326-MS. https://doi.org/10.2118/68326-MS.
Mackay, E. J. and Jordan, M. M. 2003. SQUEEZE Modelling: Treatment Design and Case Histories. Paper presented at the SPE European Formation Damage Conference, The Hague, The Netherlands, 13–14 May. SPE-82227-MS. https://doi.org/10.2118/82227-MS.
Mackay, E. J., Matharu, A., Sorbie, K. S. et al. 1998. Modeling of Scale Inhibitor Treatments in Horizontal Wells: Application to the Alba Field. Paper presented at the SPE Formation Damage Control Conference, Lafayette, Louisiana, USA, 18–19 February. SPE-39452-MS. https://doi.org/10.2118/ 39452-MS.
Pardue, J. E. 1991. A New Inhibitor for Scale Squeeze Applications. Paper presented at the SPE International Symposium on Oilfield Chemistry, Anaheim, California, USA, 20–22 February. SPE-21023-MS. https://doi.org/10.2118/21023-MS.
Poynton, N., McLaughlin, K., Ray, J. et al. 1999. Evaluation of Scale Inhibitor Squeeze Treatment Returns Using the Heriot-Watt University ‘SQUEEZE V’ Computer Code: The True Value of Field Data for Treatment Optimisation. Paper prepared for the SPE International Symposium on Oilfield Scale, Aberdeen, Scotland, UK, 27–28 January.
Poynton, N., Tidswell, R., Steele, J. et al. 2000. Squeezing Aqueous Based Scale Inhibitors into a Water Sensitive Reservoir–Development of a Squeeze Strategy. Paper presented at the International Symposium on Oilfield Scale, Aberdeen, Scotland, UK, 26–27 January. SPE-60219-MS. https://doi.org/10.2118/60219-MS.
Sorbie, K. S., Yuan, M. D., and Jordan, M. M. 1994. Application of a Scale Inhibitor Squeeze Model To Improve Field Squeeze Treatment Design. Paper presented at the European Petroleum Conference, London, UK, 25–27 October. SPE-28885-MS. https://doi.org/10.2118/28885-MS.
Sorbie, K. S., Yuan, M. D., Todd, A. C. et al. 1991. The Modelling and Design of Scale Inhibitor Squeeze Treatments in Complex Reservoirs. Paper presented at the SPE International Symposium on Oilfield Chemistry, Anaheim, California, USA, 20–22 February. SPE-21024-MS. https://doi.org/10.2118/21024-MS.
Vazquez, O., Jordan, M. M., Mackay, E. J. et al. 2018. Scale Inhibitor Squeeze Placement Modelling in a North Sea Reservoir with Injection Gas Break-through. Oral presentation given at the TEKNA Oil Field Chemistry Symposium, Geilo, Norway, 5–7 March 2018.