Caledyne全金屬井下封隔系統(英)

    [加入收藏][字號: ] [時間:2009-06-03  來源:E&P  關注度:0]
    摘要:簡介:Caledyne公司的全金屬井下封隔系統,實現了真正的全部金屬體封隔油井,安全可靠,能夠抵抗極端條件。該公司采用了全金屬封隔的可回收橋塞(RBP),最近應用于馬來西亞Bunga Kekwa一項目中,來臨時封堵一井。該RBP下于7,24...
    簡介:Caledyne公司的全金屬井下封隔系統,實現了真正的全部金屬體封隔油井,安全可靠,能夠抵抗極端條件。該公司采用了全金屬封隔的可回收橋塞(RBP),最近應用于馬來西亞Bunga Kekwa一項目中,來臨時封堵一井。該RBP下于7,244 英尺處,經過兩個月的井下作業,取出后完好無損,顯示了其良好的機械性能。


    Caledyne’s metal-to-metal (MTM) downhole seal system provides a complete metal barrier that is reliable, durable, and resistant to extreme conditions.

    The company’s retrievable bridge plug (RBP), which incorporates the MTM seal, was recently deployed for Talisman on the Bunga Kekwa project in Malaysia to temporarily plug a well.

    The RBP was installed to a depth of 7,244 ft (2,208 m). The assembly was run, and the setting tool activated, which sheared off the bridge plug and removed it from the well.

    Well deviation at the RBP was 45° and was successfully pressure-tested to 350 psi. After one hour, a straight-line pressure test with zero dropoff was recorded, and after 24 hours, there was no pressure buildup in the tubing. A debris catcher was then installed above the RBP to keep out cuttings.

    A second tubing cut was required below the original cut after problems were encountered during repair activities. Because this process was performed without a debris catcher, considerable debris landed on top of the RBP. Multiple bailer and venture runs were carried out to remove the debris. The new completion components were installed a month after the RBP.

    When the plug was removed, the large amount of debris prevented the pulling tool from latching the fishing neck on the RBP, which resulted in further bailing runs to remove debris.

    At this point, the plug was released but could not be pulled. Several maximum overpulls of 30,000 lbf were applied that eventually moved the plug slowly uphole.

    With the plug removed, the RBP appeared to be in good condition with the MTM seal fully intact, sitting just above gauge diameter. The resilience of the RBP reflects the mechanical strength, construction, integrity, and design of the MTM seal, which had been downhole for two months.

    Since this initial deployment, the operator has ordered several additional RBP units for similar reservoir applications. 

    楊寶劍 是振威(全球)石油網的高級技術編輯,在石油技術資訊行業有八年的學識和經驗。他源源不斷地提供石油行業全球最新的技術創新、研發成果、現場應用情況等信息。如果你對該項新技術有任何的疑問,或者對“新技術新產品”未來的內容有任何問題或建議,請聯系楊寶劍編輯 +86 10-58236512 Email:allenyo@zhenweiexpo.com 歡迎與行業互動!

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