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Interference Testing of Horizontal Producers and Injectors in the Huntington Field

机译：Huntington领域水平生产者和注射器的干扰测试

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This paper describes the design and interpretation of interference tests conducted between injectors and producers in the Huntington oilfield. The field is located in the UK Central North Sea and developed with four horizontal producers and two inclined water injectors. Water injection provides reservoir pressure support and mitigates the uncertainty of aquifer strength and its connectivity to the oil leg. This ensures adequate pressure maintenance in support of hydrocarbon recovery. It is important to understand effective communication between the wells. This is required to improve the forecasts of water breakthrough, to plan preventative actions and to optimise field operations and reservoir management. Therefore, a series of modified pulse tests were performed during the clean-up and well test campaigns to minimise disruption and delay to the drilling schedule. Data were recorded using permanent down-hole gauges installed in the horizontal producers, and the analyses of the results were performed using both analytical and numerical models. The modified pulse tests confirmed good communication between the producers tested. A reasonable match between the modified pulse test data and simulation model predictions is demonstrated in this paper, where reservoir properties such as permeability and porosity estimated for the inter-well areas show good agreement with the well test results. The test between injector and producer was also used to match the pressure response and can be used to predict injection water breakthrough. In the test, water was injected into two different intervals, the Upper and Lower Forties. Comparison of the injection test results with numerical simulation data suggests that no communication exists between these two intervals. This is a practical example of interference testing which provides insight and assurance on effective reservoir properties on an inter-well scale. This kind of data, before field start-up and free from the influence of other producers, is very useful for the field performance prediction and also rarely available in the literature.
机译：本文介绍了亨廷顿油田注射器和生产者之间进行干扰试验的设计和解释。该领域位于英国中央北海，开发了四个水平生产商和两个倾斜的水喷射器。注水提供水库压力支持，并减轻含水层强度的不确定性及其与油腿的连接。这确保了支持碳氢化合物回收的充分压力维护。了解井之间有效沟通非常重要。这是改善水突破预测，规划预防措施和优化现场运营和水库管理的预测。因此，在清理和井测试活动期间进行了一系列修改的脉冲测试，以最大限度地减少对钻井时间表的破坏和延迟。使用安装在水平生产商中的永久井下仪表记录数据，并使用分析和数值模型进行结果的分析。改进的脉冲测试证实了测试的生产商之间的良好通信。本文证明了修改的脉冲测试数据和模拟模型预测之间的合理匹配，其中储层性质如适用于井间区域的渗透性和孔隙率均显示出与井测试结果的良好一致性。喷射器和生产者之间的测试也用于匹配压力反应，可用于预测喷射水突破。在试验中，将水注入两种不同的间隔，占地面积和下四十年代。注射测试结果与数值模拟数据的比较表明这两种间隔之间不存在通信。这是干扰测试的实际示例，为井间规模的有效储层性质提供了洞察力和保证。这种数据，在现场启动之前，没有其他生产者的影响，对场性能预测非常有用，并且在文献中也很少可用。

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