[1]張智,趙苑瑾,吳優,等.頁巖氣井井下安全閥完整性研究[J].石油管材與儀器,2020,6(04):56-62.[doi:10.19459/j.cnki.61-1500/te.2020.04.010]
 ZHANG Zhi,ZHAO Yuanjin,WU You,et al.Integrity of Subsurface Safety Valve in Shale Gas Well[J].Petroleum Tubular Goods & Instruments,2020,6(04):56-62.[doi:10.19459/j.cnki.61-1500/te.2020.04.010]
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頁巖氣井井下安全閥完整性研究
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《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期數:
2020年04期
頁碼:
56-62
欄目:
頁巖氣專題
出版日期:
2020-08-20

文章信息/Info

Title:
Integrity of Subsurface Safety Valve in Shale Gas Well
文章編號:
2096-0077(2020)04--0056-07
作者:
張智1趙苑瑾1吳優1鄧虎2盧齊2
1.西南石油大學,油氣藏地質及開發工程國家重點實驗室 四川 成都 610500; 2.中國石油川慶鉆探工程有限公司鉆采工程技術研究院 四川 廣漢 618300
Author(s):
ZHANG Zhi1 ZHAO Yuanjin1 WU You1 DENG Hu2 LU Qi2
1.State Key Laboratory of Oil & Gas Reservoirs Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;2.Drilling & Production Engineering Technology Research Institute, CCDC, Guanghan, Sichuan 618300, China
關鍵詞:
頁巖氣井井下安全閥貝葉斯網絡風險評價
Keywords:
shale gas wellsubsurface safety valveBayesian networkrisk assessment
分類號:
TE931.2
DOI:
10.19459/j.cnki.61-1500/te.2020.04.010
文獻標志碼:
A
摘要:
提高頁巖氣的產量是實現天然氣上產的基礎,但頁巖氣開發過程中存在的井筒完整性問題嚴重影響了頁巖氣的經濟生產,甚至威脅到人員安全和環境保護。而井下安全閥作為井筒屏障系統的重要組成部分之一,在地層流體出現異常時,可以迅速關閉生產通道,從而避免井噴等嚴重事故的發生。因此,井下安全閥功能的正常運行對實現頁巖氣井安全生產有著重大意義。為此,通過故障樹分析法確定了頁巖氣井井下安全閥的失效形式和風險因素,建立了基于貝葉斯網絡模型的頁巖氣井井下安全閥失效概率計算方法,并結合Sintef統計數據,確定了風險因素的權重,得到了井下安全閥的風險等級,制定相應管理措施。研究結果表明:該方法可為頁巖氣井井下安全閥的風險評價和管理提供理論支撐及決策依據,有助于預防及控制井下安全閥的失效。
Abstract:
Increasing the production of shale gas is the basis for improving natural gas production. However, the problems of shale gas well integrity in the process of shale gas development have seriously affected the economic production of shale gas, and even threatened the safety of people and environment. When the flowing of formation fluid is out of control, the subsurface safety valves, as one of the important components of the wellbore barriers system, can be quickly closed to avoid the occurrence of serious accidents such as blowouts. Therefore, the normal operation of the subsurface safety valve function is of great significance to the safe production of shale gas. To this end, this paper figures out the failure forms and risk factors of subsurface safety valves in shale gas wells through Fault Tree Analysis, and establishes a Bayesian network modelbased failure probability calculation method. Combined with Sintef statistics, the weights of risk factors are determined, the risk level of subsurface safety valves is obtained, and corresponding management measures are formulated. The results show that this method can provide theoretical support and decisionmaking basis for risk assessment and management of subsurface safety valves in highproduction gas wells, and is helpful to prevent and control the failure of subsurface safety valves.

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備注/Memo

備注/Memo:
基金項目:高等學校學科創新引智計劃(111計劃)專項(項目編號:D18016);四川省青年科技創新研究團隊專項計劃(項目編號:20CXTD0024) 第一作者簡介:張智,男,1976年生,教授,博士生導師,2005年畢業于西南石油大學油氣井工程專業,獲博士學位,主要從事油氣井工程、井筒完整性與環空帶壓管控、材料腐蝕與防腐等研究。E-mail:[email protected]
更新日期/Last Update: 2020-08-25
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