[1]楊進.海上油氣井服役過程中隔水導管旋轉原因分析[J].石油鉆采工藝,2018,40(6):695-698.[doi:10.13639/j.odpt.2018.06.004]
 YANG Jin.Cause analysis on the rotation of riser during the operation of offshore oil and gas wells[J].Oil Drilling & Production Technology,2018,40(6):695-698.[doi:10.13639/j.odpt.2018.06.004]
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海上油氣井服役過程中隔水導管旋轉原因分析
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《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期數:
2018年6期
頁碼:
695-698
欄目:
鉆井完井
出版日期:
2018-11-20

文章信息/Info

Title:
Cause analysis on the rotation of riser during the operation of offshore oil and gas wells
文章編號:
1000 – 7393( 2018 )06 – 0695 – 04
作者:
楊進
中國石油大學(北京)安全與海洋工程學院
Author(s):
YANG Jin
College of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing 102249, China
關鍵詞:
海上生產井井口隔水導管旋轉海流海生物
Keywords:
offshore production wells wellhead rotation of riser ocean current marine organism
分類號:
TE52
DOI:
10.13639/j.odpt.2018.06.004
文獻標志碼:
A
摘要:
海上生產井在服役過程中井口發生旋轉會對采油樹、井口管匯以及油氣生產帶來嚴重的安全隱患和作業風險。針對海上某油田在服役多年后井口發生的旋轉現象,從最外層隔水導管受力情況分析出發,對鉆完井作業過程和生產過程中的各個階段影響因素進行了分析,建立了鉆井隔水導管在海流作用下產生扭矩的力學模型;考慮到油氣井長期服役后隔水導管外側會附著大量海生物現象,附著的海生物在海流作用下會對隔水導管產生更大的扭力,從而引起隔水導管的旋轉。通過理論分析和有限元計算,建立了不同海生物附著條件下隔水導管旋轉力的計算模型。利用建立的鉆井隔水導管旋轉力計算模型進行案例分析,進一步驗證了理論模型的正確性和準確性。研究結果能夠為海上隔水導管扣型設計、隔水導管連接方式和油氣井服役過程中井口維護提供理論依據。
Abstract:
The rotation of well in the service process of offshore production wells will bring potential safety hazard and serious operation risk to production tree, well manifold and oil & gas production. The rotation of well in a certain offshore oilfield which had been in service for many years was taken as the research object. Firstly, the influential factors in each stage of drilling and production process were analyzed with the stress analysis on the outer riser as the beginning point, and the mechanical model for the torque of the riser under the action of the ocean current was established. Then, considering that marine organisms will attach to the outside of the riser after long-term service of oil and gas wells and the attachment of marine organisms will produce greater torsion under the action of the ocean current, resulting in the rotation of the riser, the model for calculating the rotation force of the riser under different attachment conditions of marine organism was established by means of theoretical analysis and finite element calculation. Finally, the calculation model was used for case study to verify the correctness and accuracy of the theoretical model. The research results can provide theoretical basis for the buckle type design of offshore riser, the connection mode of riser and the well maintenance in the service process of oil and gas wells.

相似文獻/References:

[1]劉景超  黃毓祥  周文博.海洋鉆井井口承壓保護裝置的研制[J].石油鉆采工藝,2014,36(3):117.[doi:10.13639/j.odpt.2014.03.030]
 LIU Jingchao,HUANG Yuxiang,ZHOU Wenbo.Development of wellhead pressure protection device in offshore drilling[J].Oil Drilling & Production Technology,2014,36(6):117.[doi:10.13639/j.odpt.2014.03.030]
[2]馬林虎,徐惠峰.井口套管懸掛載荷的計算[J].石油鉆采工藝,1990,12(5):035.[doi:10.3969/j.issn.1000-7393.1990.05.006]

更新日期/Last Update: 2019-04-10
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