论文部分内容阅读
随着胜坨油田步入特高含水开发后期,井筒条件日益恶化,卡封有效率逐年下降。为实现可靠卡封以及对套漏、套变井、偏磨井进行有效治理,根据胜坨油田油水井的具体情况,研发了以套管壁监测技术(40臂测井)、套管漏失监测技术(电磁流量计、井温找漏测井)、管外水泥胶结监测技术(声波变密度测井)和井身轨迹监测技术(陀螺测斜)为代表的工程测井四大技术系列,基本达到了井身技术参数监测的覆盖需求,实现了从套管内状况到套管外水泥环的立体监测。以上技术现场应用表明,与2007年同期相比,高含水返工井明显减少,减少85口;工程措施成功率明显提高,提高了3.3%;在套管损坏井逐年增加的情况下,油井开井率逐年上升,上升了3.7%;水井作业遇卡率和交大修率明显下降,分别下降了11%、2.4%;偏磨作业井次大幅下降,减少了120井次。
With the Shengtuo oilfield entering the later stage of ultra-high water-cut development, the conditions of wellbores deteriorated day by day, and the efficiency of card sealing decreased year by year. In order to achieve reliable sealing and effective control of casing leakage, casing change and partial wear well, according to the specific conditions of oil and water wells in Shengtuo Oilfield, casing monitoring technology (40-arm logging), casing leakage monitoring Technology (electromagnetic flowmeter, well temperature leakage detection logging), pipe cement cementing monitoring technology (acoustic density logging) and wellbore trajectory monitoring technology (gyrophoric incline) as the representative of the four engineering logging technology series, the basic The technical requirements of the wellbore have been met and the requirement of covering the technical parameters of the wellbore has been fulfilled. The three-dimensional monitoring of the cement ring outside the casing has been realized. The field application of the above technologies shows that compared with the same period in 2007, the number of high-water-rework wells decreased by a whopping 85, and the success rate of engineering measures improved markedly by 3.3%. In the case of increasing casing damage, The rate of encountering wells witnessed a significant drop of 11% and 2.4% respectively. The number of partial well operations dropped sharply, decreasing by 120 wells.