“Active Feedback Control of Unstable Wells at the Brage Field”

Authors: Morten Dalsmo, E. Halvorsen and Olav Slupphaug,
Affiliation: ABB and Norsk Hydro
Reference: 2005, Vol 26, No 2, pp. 81-94.

Keywords: Unstable wells, active feedback control, oil production, gas lift, stabilization

Abstract: In this paper we will present new results on stabilization of horizontal wells with gas lift. The stabilization is achieved by a novel dynamic feedback control solution using the production choke at the wellhead. The primary input to the dynamic feedback controller is a measurement of the downhole pressure. The field results to be presented are from the Brage field operated by Norsk Hydro in the North sea. Production at Brage began in 1993 and the field went off plateau in 1998. As the production has decreased, the problems related to unstable production from some of the wells have escalated steadily. The results from the extensive field tests on the Brage wells arc very promising. The tests have confirmed the stabilization feature of the control solution. The pressure and flow variations have been dramatically reduced, and it is possible to produce the wells at a lower downhole pressure leading to increased production.

PDF PDF (2083 Kb)        DOI: 10.4173/mic.2005.2.2

DOI forward links to this article:
[1] Somtochukwu Godfrey Nnabuife, Henry Tandoh and James Whidborne (2021), doi:10.1016/j.ceja.2021.100204
[2] Nayher A. Clavijo, Fabio C. Diehl, Giovani G. Gerevini, Priamo A. Melo, Tiago Lemos, Luiz Felipe de O. Campos and Jose Carlos Pinto (2022), doi:10.1016/j.petrol.2022.110716
[1] ANDERSEN, K. I., HALVORSEN, E., SÆLENSMINDE, T. ØSTBY, N. 0. (2000). Water Management in Closed Loop - Problems and Solutions at Brage Field, paper SPE 65162 presented at the 2000 SPE European Petroleum Conference held in Paris, France, 24-25 October 2000.
[2] COURBOT, A. (1996). Prevention of Severe Slugging in the Dunbar 16´ multiphase Pipeline, Paper OTC 8196 presented at the 1996 Offshore Technology Conference, Huston, Texas, May 1996.
[3] GARNAUD, F., CASAGRANDE, M., FOUILLOUT, C. LEMETAYER, P. (1996). New Field Methods for a Maximum Lift Gas Efficiency Through Stability, Paper SPE 35555 presented at the 1996 European Prod. Opr. Conf., Stavanger, April 16-17.
[4] HAVRE K. DALSMO M. (2001). Active Feedback Control as the Solution to Severe Slugging, Paper SPE 71540 presented at the 2001 SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 30 Sept.-3 Oct., 2001.
[5] HAVRE, K., STORNES, K. O. STRAY, H. (2000). Taming slug flow in pipelines, ABB Review, 4.
[6] HEDNE, P. LINOA, H. (1990). Suppersion on Terrain Slugging with automatic and manual Riser choking, Advances in Gas-Liquid Rows, pp. 453-460.
[7] HENRIOT, V., CUORBOT, A., HEINTZE, E. MOYEUX, L. (1999). Simulation of Process to Control Severe Slugging: Application to the Dunbar Pipeline, Paper SPE 56461 presented at the 1999 SPE Annual Technical Conference and Exibition held in Huston, Texas Oct. 3-6 1999.
[8] JANSEN, B., DALSMO, M., NØKLEBERG, L., HAVRE, K., KRISTIANSEN, V. LEMETAYER, P. (1999). Automatic Control of Unstable Gas Lifted Wells, Paper SPE 56832 presented at the 1999 SPE Annual Technical Conference and Exhibition, Houston, Texas, Oct. 3-6, 1999.
[9] JANSEN, B., DALSMO, M., STENERSEN, K., BJUNE,, B. MOE, H. (2001). New Upstream Control and Optimization Techniques Increase Return on Investment, ABB Review, 3, pp. 20-27.
[10] LEMETAYER, P. MIRET, P. M. (1991). Tool of the 901s To Optimize Gas-Lift Efficiency in the Gonelle Field, Gabon, paper SPE 23089 presented at the Offshore Europe Conference, Aberdeen, Sept. 3-6, 1991.
[11] LIEN, S. C., LIE, S. E, FJELLBIRKELAND, H. LARSEN, S. V. (1998). Brage Field, Lessons Learned After 5 Years of Production, Paper SPE 50641 presented at the 1998 SPE European Petroleum Conference held in Hague, The Netherlands, 20-22 October 1998.

  title={{Active Feedback Control of Unstable Wells at the Brage Field}},
  author={Dalsmo, Morten and Halvorsen, E. and Slupphaug, Olav},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}