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1前言气井产能试井又称气井稳定试井,是以气体稳定渗流理论为基础,目的是确定气井的产能及合理的生产制度,并求得气井的生产方程,预测气井产量随气藏衰竭而下降的原因。产能试井在关井求得稳定气藏压力PR,然后采用3-5种工作制度,而改变井的回压,依次测得每种工作制度下的稳定产 相似文献
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在油气井生产过程中,通过对试井数据进行解释,不但可以获取油藏地层压力及生产井产能资料;而且还可以分析井筒附近地层是否存在污染、地层能量补给情况、含水上升情况及井间干扰等更深层的地层信息。本文介绍了试井解释的原理,分析水平井试井解释曲线显现的特征信息并得出结论。 相似文献
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在油气井生产过程中,通过对试井数据进行解释,不但可以获取油藏地层压力及生产井产能资料;而且还可以分析井筒附近地层是否存在污染、地层能量补给情况、含水上升情况及井间干扰等更深层的地层信息。本文介绍了试井解释的原理,分析水平井试井解释曲线显现的特征信息并得出结论。 相似文献
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气井合理产量的研究是气井高效开发的一个重要课题。由于影响气井产能的因素很多,因此应用不同的研究方法,结论有很大差异。YQ2井区为致密气藏,目前处于开发初期,测试资料不完善且差异较大。为了高效、合理地开发气藏,确定气井的合理产量就成为了急需解决的研究课题。针对YQ2井区的地质特征和开发情况,本文对比分析了经验方法、生产指示曲线法、生产数据统计法和数值模拟法等计算合理产能的4种方法。通过对各种方法的分析评价,得出了各种方法的优缺点和适用性。建议根据气井的地质特征和动态特征综合考虑,选择合理的方法来确定气井的合理产量。 相似文献
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松南气田开采层位为火山岩储层,受构造和火山活动的双重控制,非均质性强,连通性差,而且有边底水,现有的经验难以满足开发需要。目前松南气田已投入开发,如何确保火山岩储层气藏高效开发,首先要解决气井合理产量确定问题。针对松南气田火山岩储层的特点,对不同类型的气井开展试井工作,利用试井成果确定气井的产能方程。松南气田火山岩储层气井在生产上表现为产气量差别大、压力下降快慢不同,因此,在单井合理产量模式确定上,主要是以气井产能方程为基础,考虑气井的边底水特征、井筒积液、稳产期等因素,对不同类型的气井分别建立了合理产量模式。 相似文献
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在油田开发中,页岩气井一般经历钻井、固井、固放磁测试、通探洗、TCP射孔、压裂、扫塞、放喷、下生产管柱投产的过程,而扫塞涉及的内容比较广泛,它包括检测地面流程连接的合理性、套管压裂后的变化程度评估、侧面反映连续油管和压裂车的密切配合、捕塞工具的合理组合,在本文对压后扫塞技术进行研究。 相似文献
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Rahman Miri Mahmoud Salimi Suzanne Stewart Jose Manuel Bermudez Gonzalez Camilo Mazo Suárez Alireza Nouri 《加拿大化工杂志》2024,102(5):1957-1969
This paper assessed and ranked several alternatives to control sand production in a well recompletion effort of offshore gas wells that have experienced massive sanding. The aim was to select an appropriate thru-liner sand control system to increase well productivity. Four different screen types were evaluated, including a wire-wrapped screen (WWS), slotted liner (SL), punched screen (PS), and a new multi-layer open cell matrix polymer (OCMP) filter resembling gravel-pack. The performance of screens regarding sand production and plugging was evaluated using a sand retention testing facility featuring a custom-made device that mimics the unique well completion configuration. Further, a novel testing setup was constructed to assess the erosion potential of screens subject to high-velocity gas and sand flow. All assessments were conducted under the representative actual well conditions. Laboratory tests indicate the superior performance of the OCMP filter compared to the other three options. Even though SL, WWS, and PS performed similarly in sanding, the WWS posed a higher erosion risk, with PS following in second place. The plugging tendency of the WWS was the least among all the options, whereas the PS had the highest tendency. Despite this, the WWS's sanding performance is expected to decline due to its vulnerability to erosion. Overall, the testing results indicated that the OCMP filter provides a promising solution to the issue of sand production in the gas wells being evaluated. However, the interaction of the OCMP filter with potential treatment chemicals in the wells should be tested before it can be used. 相似文献
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