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Active Feedback Control of Unstable Wells at the Brage Field

机译：Brage场不稳定井的主动反馈控制

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摘要

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 are 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.
机译：在本文中，我们将介绍通过气举稳定水平井的新结果。通过使用井口生产节流阀的新型动态反馈控制解决方案来实现稳定。动态反馈控制器的主要输入是井下压力的测量值。现场结果来自北海的Norsk Hydro运营的Brage油田。布拉奇（Brage）的生产始于1993年，该油田于1998年停产高原。随着产量的下降，与某些井的不稳定产量有关的问题正在逐步升级。在布拉奇（Brage）井进行的广泛现场测试的结果非常有希望。测试证实了对照溶液的稳定性。压力和流量变化已大大降低，可以在较低的井下压力下生产井，从而提高产量。

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