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锦91块是典型的边底水稠油油藏,目前存在地层压力低、边水内侵等问题,加之井况差影响,造成水侵规律复杂,开发效果日益变差.利用新井、侧钻井电测解释结果,环空产液剖面测试,中子寿命测试等资料,结合动态分析,开展水侵规律的研究,建立水侵模型,并首次在稠油重水淹区大规模推广应用大位移侧钻及螺杆泵稳液增油技术获得成功.实施配套挖潜技术性措施,实现了平面及层间剩余油的挖潜,提高了储层动用程度,减缓了断块递减速度,断块开发效果得到明显改善. 相似文献
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周小兵 《石油石化物资采购》2021,(11):110-111
经过40多年开发历程,X区块开发中存在底水锥进严重、油井套损严重等问题,影响区块开发效果,为此在对区块剩余油潜力评价基础上,优选老井侧钻技术进行剩余油挖潜,取得较好效果,共实施10井次,阶段累产油3.5万吨,提高采收率0.46%,在低油价下实现降本增效目的,下步计划继续对12口套损井实施侧钻,预计增加可采储量6.2万吨。 相似文献
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从精细油藏描述入手,开展了河31断块特高含水期剩余油分布规律及挖潜对策研究。在新认识指导下,确立了断块重建井网、细分层系开发的原则。开发中,应用定向斜井及侧钻井技术、水动力学方法进行调整挖潜。实施后,断块开发效果得到了明显的改善,采收率由42.2%提高到45.9%。此次调整的成功,对类似油藏高含水后期高效挖潜具有重要指导意义。 相似文献
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措施产量、成本与效益优化配置方法研究 总被引:5,自引:2,他引:3
油田进入高含水开发后期,要继续保持稳产,势必采取一系列挖潜增产措施弥补递减的产量。不同挖潜措施的增产效果相差悬殊,同一区块不同措施及不同区块同一措施投入成本都不相同,通过对影响油田挖潜措施因素的分析,应用等边际成本理论及现值法研究建立了不同区块挖潜措施合理分配模型,并对不同区块的措施产量进行了合理分配,合理分配后的措施不仅符合油田开发生产实际,同时对大大提高经济效益,为油田开发部署提供决策依据。 相似文献
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泌阳凹陷下二门区块断层发育且地层承压能力低,尾管外径大、循环压耗高,漏失风险大;井眼环空间隙小、套管扶正措施受限,固井质量难以保证。套管开窗侧钻井技术可有效挖潜老区剩余油,提高油层动用率,是适应低油价、低成本开发的一项有效技术。通过技术公关及现场应用形成了一套低承压下φ101.6 mm尾管的套管开窗侧钻井配套工艺技术,2019年在下T5–241C1井实施。现场应用表明,扩眼作业可有效降低循环压耗,同时增加环空间隙,可为固井提供良好的井筒条件。 相似文献
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侧钻井技术在老油田挖潜中的研究及应用 总被引:1,自引:0,他引:1
充分应用动态监测资料,结合油藏精细地质研究技术,研究油田剩余油分布规律,落实长停井、事故井潜力,优选有利井点实施套管内开窗侧钻,可有效恢复停产井、事故井,同时使注采井网进一步完善,充分挖掘剩余油潜力,提高油田开发水平.侧钻井技术是恢复停产井、事故井,进行老油田挖潜,提高油田开发水平的有效途径. 相似文献
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鄂尔多斯盆地苏里格气田苏11区块北部老区经过十余年的开发,低产低压气井逐年增多、储量动用不均衡、剩余气分布复杂等问题越来越突显。为了改善其开发效果,在调研同类型气藏开发经验的基础上,应用复杂河流相砂岩储层精细刻画技术和地质建模、数模一体化剩余气评价技术,准确描述井间、层间剩余气的分布,然后在明确侧钻水平井、侧钻井和调层井选井选层技术界限的基础上,制订出具体的挖潜对策,指导了该区块现场挖潜工作。研究结果表明:①复杂河流相砂岩储层精细刻画技术可以实现单砂体级别的精细刻画,对优势储层进行定量描述,为河流相储层地质研究提供了模式指导;②“动态分析法+数值模拟法”天然气剩余储量评价技术精准描述了剩余气的平面和纵向分布特征,为下一步挖潜指明了方向;③苏11区块北部老区天然气剩余储量分布可划分为井网未控制型、层内非均质型及层间非均质型3种模式,针对井网未控制型优先考虑侧钻水平井挖潜,针对层内非均质型优先考虑侧钻井挖潜,针对层间非均质型则优先考虑部署调层井挖潜;④确定了侧钻水平井、侧钻井、调层井选区选井选层技术界限,在苏11区块北部老区已累计部署侧钻水平井5口、侧钻井8口、调层井79口;⑤截至目前,现场措施井有效率达100%,累计增产天然气1.01×108 m3。结论认为,基于该项研究成果所提出的致密砂岩气藏开发老区挖潜对策,取得了较好天然气增产效果,值得借鉴和推广。 相似文献
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《石油机械》2014,(8)
<正>日前,塔河油田在跃进区块部署的侧钻水平井YJ1-4CH井在目的层钻进过程中,钻遇漏失型良好储集体,酸压完井测试喜获高产,日产油100.8 t,日产气2.7万m3,标志着"直井侧钻"已成为塔河油田跃进工区高效开发的关键技术方式。YJ1-4CH井位于塔河油田跃进工区1区块,该工区前期部署的井均为直井。2014年,跃进地区按照"增储上产、整体评价、高效开发"的思路,加大了该地区侧钻挖潜开发力度,本次部署的YJ1-4CH井,以奥陶系一间房组为目的层,旨在通过侧钻的方式,评价YJ1-4CH井北东方向的"串珠"状地震反射异常地质体,实现该地区未动用储量的高效开发。 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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