[1]席巖,李軍,李方園,等.斷層滑移剪切套管變形內徑變化規律研究[J].石油管材與儀器,2020,6(04):38-40.[doi:10.19459/j.cnki.61-1500/te.2020.04.006]
 XI Yan,LI Jun,LI Fangyuan,et al.Variation of Inner Diameter After Casing Shear Deformation Induced by Fault Slippage[J].Petroleum Tubular Goods & Instruments,2020,6(04):38-40.[doi:10.19459/j.cnki.61-1500/te.2020.04.006]
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斷層滑移剪切套管變形內徑變化規律研究
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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:
38-40
欄目:
頁巖氣專題
出版日期:
2020-08-20

文章信息/Info

Title:
Variation of Inner Diameter After Casing Shear Deformation Induced by Fault Slippage
文章編號:
2096-0077(2020)04--0038-03
作者:
席巖1李軍23李方園4曾夏茂5鐘文力5
1.北京工業大學建筑工程學院 北京 100124; 2.中國石油大學(北京) 北京 102249;3.中國石油大學(北京)克拉瑪依校區 新疆 克拉瑪依 834000;4.中國石油西部鉆探工程有限公司 新疆 烏魯木齊 830011;5.中石化西南石油工程有限公司固井分公司 四川 德陽 618003
Author(s):
XI Yan1 LI Jun23 LI Fangyuan4 ZENG Xiamao5 ZHONG Wenli5
1. College of Architecture and Civil Engineering of Beijing University of Technology,Beijing 100124,China; 2.China University of PetroleumBeijing, Beijing 102249, China;3.China University of PetroleumBeijing at Karamay, Karamay, Xinjiang 834000, China; 4.CNPC XiBu Drilling Engineering Company Limited, Urumchi, Xinjiang 830011, China; 5.SINOPEC Xinan Oilfield Service Corporation Cement Branch, Deyang, Sichuan 618003, China
關鍵詞:
套管變形頁巖氣多級壓裂斷層滑移
Keywords:
casing deformation shale gas multistage fracturing fault slippage
分類號:
TE931+.2
DOI:
10.19459/j.cnki.61-1500/te.2020.04.006
文獻標志碼:
A
摘要:
頁巖氣多級壓裂過程中出現的套管變形問題亟待解決,F場測量數據表明,剪切變形是主要破壞形式。建立了基于斷層滑移的頁巖氣井套管剪切變形數值模型,計算了剪切變形后套管內徑沿軸向變化規律。研究結果表明:斷層滑移后套管最小內徑出現在套管滑移面附近;隨著滑移距離的不斷增加,套管內徑縮徑量不斷增加;斷層面與套管垂直時,套管剪切變形最為顯著。為避免引起斷層滑移,應在設計中盡量使井眼軌跡避開天然裂縫帶,或者順裂縫帶走向鉆進,以利于套管完整性的保護。研究結果可為頁巖氣井壓裂過程中套管完整性的控制提供參考。
Abstract:
Casing defomation is a problem to be urgently solved occurred during the multistage fracturing of shale gas. According to the multiarm caliper measurement data, shear deformation is the main type of casing deformation. Based on the fault slipping in practice, a numerical model of casing shear deformation was established, and the axial variation of casing inner diameter after shear deformation was calculated. The results show that with the increase of slip distance, the reduction of casing inner diameter increases. When the fault surface is perpendicular to the casing, the casing shear deformation is the most significant. It is suggested that the trajectory of the well section be designed to avoid from the natural fracture zone, or it be drilled along the fracture zone so as to protect the casing integrity. The research results can provide reference for the control of casing integrity during the fracturing of shale gas wells.

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備注/Memo

備注/Memo:
基金項目:國家自然科學基金聯合基金重點項目“頁巖氣水平井井筒完整性失效機理與控制方法”(項目編號:U1762211);國家自然科學基金-企業創新發展聯合基金課題“海相深層油氣富集機理與關鍵工程技術基礎研究-構造應力集中區頁巖氣井套管載荷模型及結構完整性失效機理”(項目編號:U19B6003-05-04-02); 北京 市博士后工作經費資助項目“頁巖氣水平井套管剪切變形演變機理及控制方法研究” 第一作者簡介:席巖,男,1985年生,講師,2019年畢業于中國石油大學( 北京 )油氣井工程專業,主要從事深層能源開采巖石動力學方面的研究。E-mail:[email protected]
更新日期/Last Update: 2020-08-25
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