共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
小井眼开窗侧钻水平井技术在秦皇岛32-6油田的应用 总被引:1,自引:0,他引:1
我国陆地油田应用实践表明,采用小井眼开窗侧钻技术,可以充分利用低效井、无效井及关停井上部套管,减少施工井段,节省成本,提高剩余油的开采效果,恢复停产井生产能力。针对秦皇岛32-6油田E15H1井小井眼开窗侧钻作业面临方位测量难度大、易卡钻、井眼轨迹控制难度大、钻井液性能要求高及完井筛管串粘卡风险高等技术难点,开展了小井眼套管开窗侧钻、造斜段和水平段井眼轨迹控制、钻井液性能控制及完井防粘卡等关键技术研究,顺利完成了该井小井眼开窗侧钻作业,为海上油田挖潜增储、延长老油田生产寿命提供了有效途径,值得进一步推广应用。 相似文献
4.
沙特Ghawar油田已经开发了几十年,随着油田的持续开发和老油区的频繁作业,部分油井产能下降。为提高产能,该油田大修井作业多采用短半径和多底井水平井钻井技术对老井进行侧钻。文中主要介绍了套管开窗侧钻短半径水平井钻井技术的应用原理和主要的施工技术.并通过在HRDH-128井的应用实例.阐述了短半径水平井钻井开窗工具及侧钻方式的选择,下部钻具和动力钻具的配套、测量方式及测量工艺、井眼净化等工艺技术。实例应用结果表明.侧钻短半径水平井技术不仅是一种投资少、见效快、经济效益显著的油田开发技术,而且是老油田稳产增产和提高最终采收率的一种有效途径。 相似文献
5.
南堡潜山油气藏因埋藏深,导致井身结构复杂、钻井周期长、成本高,为进一步提高勘探开发效益,开展了老井?177.8 mm 套管开窗侧钻二开次完井试验工作。NP280C 井是南堡油田第一口?177.8 mm 套管开窗侧钻潜山井,该井开窗侧钻点深、二开次完井井眼尺寸小,给开窗侧钻作业带来诸多难题。通过优选深层套管开窗侧钻工艺、小井眼扩眼技术、膨胀尾管悬挂器+ 直连套管完井方案,探索出一系列钻完井技术对策,保证了NP280C 井套管开窗侧钻作业的成功实施。为南堡油田深层潜山老井重复利用提供了技术支持,也为同类油气藏老井侧钻施工提供了技术借鉴。 相似文献
6.
《非常规油气》2015,(5)
渤海油田目前低效井越来越多。新钻调整井或治理低效井面临着成本高、手段单一等难题。针对此问题,通过分析渤海油田稳产现状、剩余油分布规律,提出了低效井侧钻的必要性。根据渤海油田钻完井技术水平,提出了利用平台现有修井机进行低效井侧钻中短半径井眼的低成本侧钻思路,分析了钻完井方案可行性,评估了修井机作业能力。研究结果显示,渤海常规的φ152.4mm钻头+动力钻具+随钻测井工具(LWD+MWD)+非磁钻铤+震击器+钻杆的钻具组合可实现10°/30m以下的造斜率要求。优化的侧钻小井眼的井身结构和完井防砂技术方案适用于渤海油田的侧钻井作业。目前海洋修井机从提升能力、最大扭矩、水力清洁等方面均能满足侧钻井要求,海上平台现有修井机进行低效井中短半径井眼的侧钻作业在渤海油田具有可行性。结合具体实例进行了低效井侧钻技术应用经济效益评估,侧钻中短半径井眼技术及优化管理措施可大幅度降低钻井成本,提高经济效益。 相似文献
7.
8.
伊拉克M油田的A-25井是A区块构造南部的一口开发井。该井盐膏层钻进至中完井深后,发生井漏及卡钻事故,必须进行侧钻钻进。在克服盐膏层蠕变、缩径、坍塌以及盐岩溶解等诸多困难的情况下,现场精心组织施工,顺利完成盐膏层侧钻作业,满足后续作业要求,为以后类似作业提供借鉴与参考。 相似文献
9.
胜601-H402CH井是辽河油田第1口在潜山地层开窗侧钻的侧钻分支水平井,设计、施工的主要目的是利用分支井技术,在下部产层不理想情况下动用上部储层,实现油藏高效、经济开发。针对油层特点对胜601-H402CH井进行了优化设计及施工,运用贯通技术实现预开窗套管与空心导斜器紧密搭接,并形成较好的通道;运用悬空侧钻技术及从前向后的鱼骨井钻进工艺,解决了硬地层无法实现鱼刺分支悬空侧钻的难题。该井的成功设计为潜山地层侧钻分支水平井技术在辽河油田的进一步推广应用奠定了基础。 相似文献
10.
渤海某油田前期由中海油与国外一石油公司合作开发,该油田外方作业期间为减少平台钻屑处理费用特设计一口钻屑回注井。油田后期综合调整已无空槽口可用,需把原钻屑回注井侧钻为生产井,但由于钻屑回注井与生产井井口在结构、压力、防腐级别等方面均不同,需对井口进行置换,以满足生产要求。以往类似井改造
均采用浅层切割回收技术套管方式更换井口,侧钻和弃井方式局限性较大,且作业复杂、井控风险大、工期费用高,如存在浅层防碰风险,将导致无法浅层切割套管换井口。鉴于此,文章经过方案论证优选采用一种全新工艺--井口由内向外、从上而下,甲板地面置换井口方法,该方法简单实用、风险可控、工具常规、费用低等优点,该工艺的成功实施不仅为今后类似井作业积累了丰富的经验,还拓宽了侧钻方式,并大大降低了钻完井作业成本。 相似文献
11.
12.
13.
14.
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
15.
《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
16.
17.
18.
19.