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微地震法水驱前缘监测技术时间推移监测试验通过监测选定区块内注水井不同注水阶段的水驱前缘,了解区块内各注水井的优势注水方向、推进距离等监测参数的变化情况,与地质资料相结合,最终给出随时间推移的水驱前缘展布图。文章重点介绍了微地震法水驱前缘监测原理以及时间推移监测试验测试实例,分析此项技术在大庆油田生产中的作用,及时掌握井组的水驱波及动用状况,加强注采井组调控,为区块开发方案制定及调整注水开发方案提供依据。 相似文献
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受非均质性影响,注水井周围各方向吸水量差异巨大,从而影响了水驱前缘的运动方向。结合岩心组合模型实验及现场取心数据,在贝克莱-列维尔特公式的基础上,提出了针对非均质油藏水驱前缘计算的新方法。利用该方法对王窑地区实际井组进行计算,结果表明,水驱前缘的运动方向即井组的优势注水方向为南北主轴东北方向40°、南北主轴西北方向20°,与微地震测试结果进行比较,误差仅为3%,符合度较高。经过公式预测,注水开发9 a 后井组中w6 井首先见水,后经过2 a
的开发,w2 井见水,在此基础上针对井网加密调整方案提出相应建议。以均质油藏的计算方法计算同一井组,注水优势方向以及突破时间误差均较大,新的计算方法具有明显优势。 相似文献
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W2断块属于低渗-特低渗油藏,储层物性差、孔隙结构复杂及较强的非均质性特征,同时受微裂缝的影响,在注水开发过程中,流体的渗流规律愈来愈复杂。为了更好地认识该油藏的水驱状况,进一步了解平面、纵向上储层非均质特征及剩余油分布情况,在该断块优选一口井开展微量物质井间示踪,在一定程度上揭示了井组动静态参数的分布规律及特征,为改善注水开发效果提供直接依据。 相似文献
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齐2-8-10块杜家台油层已处于开发后期,开发矛盾日益突出,对平面剩余油分布的认识十分重要.利用微地震监测技术,通过监测注水过程中产生的微震波,结合生产动态及其他监测资料,确定出水驱前缘位置、优势注水方向、注水波及面积等资料,为油藏分析中的方案优化、开发效果分析、提高采收率等提供依据.现场应用结果表明,微地震监测技术在油田动态分析中具有很好的应用前景. 相似文献
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采油过程中,酸化是油气井增产、注水井增注的主要措施。砂岩基质酸化和碳酸岩基质酸化都是在低于储层破裂压力的条件下向地层中注入酸液,溶解地层中的可溶物质,清除孔隙或裂缝中的堵塞物质,从而使油气井增产或注水井增注的一种工艺措施。本文着重讨论了砂岩酸化的设计计算方法,并由此建立一套基质酸化设计方法。 相似文献
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《Oil and Energy Trends》2008,33(5):6-7
This section summarizes downstream developments of the previous month. Exploration & Production are covered in 'Upstream Review'.
An upsurge of violence in Iraq threatened a recovery in output that began earlier this year. Production in the northern fields hit a post-invasion high of 620,000 bpd in March, rising by 180,000 bpd in one month. Fighting in the south, however, cut production there by more than 100,000 bpd as government troops tried to subdue Shi'ite militias in and around Basrah. Oil installations damaged in the south included a pipeline and a pumping station. The Iraqi government nevertheless announced that oil production would reach 2.9 mn bpd by the year's end, requiring an increase of nearly 500,000 bpd over April 2008 levels. Foreign help is to be sought via a series of technical service agreements and - later this year - an upstream licensing round. Japan's Ministry of Economy, Trade and Industry says it wants a bigger role for Japanese oil companies in both the upstream and downstream sectors in Iraq. Kurdistan says it is negotiating with Baghdad to export oil produced from new oil fields there. The central government does not recognize production agreements drawn up by the Kurdistan Regional Government. The EU - desperate for gas to fill its Nabucco pipeline - has approached Iraq for up to 1 bn cfd. 相似文献
An upsurge of violence in Iraq threatened a recovery in output that began earlier this year. Production in the northern fields hit a post-invasion high of 620,000 bpd in March, rising by 180,000 bpd in one month. Fighting in the south, however, cut production there by more than 100,000 bpd as government troops tried to subdue Shi'ite militias in and around Basrah. Oil installations damaged in the south included a pipeline and a pumping station. The Iraqi government nevertheless announced that oil production would reach 2.9 mn bpd by the year's end, requiring an increase of nearly 500,000 bpd over April 2008 levels. Foreign help is to be sought via a series of technical service agreements and - later this year - an upstream licensing round. Japan's Ministry of Economy, Trade and Industry says it wants a bigger role for Japanese oil companies in both the upstream and downstream sectors in Iraq. Kurdistan says it is negotiating with Baghdad to export oil produced from new oil fields there. The central government does not recognize production agreements drawn up by the Kurdistan Regional Government. The EU - desperate for gas to fill its Nabucco pipeline - has approached Iraq for up to 1 bn cfd. 相似文献
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