[1]楊尚諭,韓禮紅,王建軍,等.頁巖氣井用套管承載特性試驗研究[J].石油管材與儀器,2020,6(04):69-72.[doi:10.19459/j.cnki.61-1500/te.2020.04.012]
 YANG Shangyu,HAN Lihong,WANG Jianjun,et al.Experimental Study on Casing Capacity for Shale Gas Well[J].Petroleum Tubular Goods & Instruments,2020,6(04):69-72.[doi:10.19459/j.cnki.61-1500/te.2020.04.012]
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頁巖氣井用套管承載特性試驗研究
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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:
69-72
欄目:
頁巖氣專題
出版日期:
2020-08-20

文章信息/Info

Title:
Experimental Study on Casing Capacity for Shale Gas Well
文章編號:
2096-0077(2020)04--0069-04
作者:
楊尚諭韓禮紅王建軍王航潘志勇
中國石油集團石油管工程技術研究院,石油管材及裝備材料服役行為與結構安全國家重點實驗室 陜西 西安 710077
Author(s):
YANG Shangyu HAN Lihong WANG Jianjun WANG HangPAN Zhiyong
State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials,CNPC Tubular Goods Research Institute, Xi′an, Shaanxi 710077, China
關鍵詞:
頁巖氣套管承載特性剪切非均勻荷載
Keywords:
shale gas casing capacity shear nonuniform load
分類號:
TE925
DOI:
10.19459/j.cnki.61-1500/te.2020.04.012
文獻標志碼:
A
摘要:
西南油氣田頁巖氣井復雜壓裂套管柱變形嚴重。根據套變井測井數據,分析確定了三種主要的套變模式和主控因素,量化了復雜壓裂工況下地層滑移位移邊界(<40 mm),為套變防治提供設計優化依據。依據非常規油氣井套管柱模擬試驗系統,研究了頁巖氣井中常用125SG Φ139.7 mm×12.7 mm套管鋼級和壁厚的變化對抗剪切和非均勻外擠承載特性的影響規律。研究結果表明,隨著套管鋼級和壁厚增加,套管抗剪切和抗非均勻外擠承載能力相應增加;高內壓循環40次后,套管抗剪切能力降低了50 t,在套管柱設計和評價時應分析承載能力折減的影響。
Abstract:
The complex fracturing casing string of shale gas well in southwest oil and gas field is seriously deformed. With the aid of the well logging data of casing change well, three main casing change modes and main control factors are analyzed and determined. The displacement boundary (< 40mm) of formation slip under complex fracturing conditions is quantified, which provides the basis for design optimization of casing deformation control. Based on the simulation test system of unconventional oil and gas well casing string, the change law of shear resistance and nonuniform collapse resistance characteristics of 125SG Φ139.7 mm×12.7 mm casing with different steel grades and different wall thicknesses is studied. The results show that the capacity of both shear resistance and collapse resistance of casing increases with the increase of casing steel grades and wall thickness. However, the casing shear resistance capacity decreases by 50 t after 40 times of high internal pressure circulation, the influence of bearing capacity reduction should be analyzed in casing column design and evaluation.

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備注/Memo

備注/Memo:
基金項目:中國石油化工聯合基金重點項目“頁巖氣水平井井筒完整性失效機理與控制方法研究”(項目編號:U1762211);中國石油天然氣集團公司科學研究與技術開發項目“頁巖氣井套管柱應變設計方法研究”(項目編號:2019A-3911) 第一作者簡介:楊尚諭,男,1986年生,高級工程師,2015年畢業于中國石油大學(華東)工程力學專業,獲博士學位,現主要從事油井管柱力學計算及仿真分析方面研究工作。E-mail:[email protected]
更新日期/Last Update: 2020-08-25
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