[1]嚴攀  李軍  柳貢慧.熱交變循環次數對水泥石彈性參數的影響[J].石油鉆采工藝,2018,40(3):318-323.[doi:10.13639/j.odpt.2018.03.008]
 YAN Pan,LI Jun,LIU Gonghui,et al.Effects of thermal alternating cycle number on the elastic parameters of set cement[J].Oil Drilling & Production Technology,2018,40(3):318-323.[doi:10.13639/j.odpt.2018.03.008]
點擊復制

熱交變循環次數對水泥石彈性參數的影響
分享到:

《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期數:
2018年3期
頁碼:
318-323
欄目:
鉆井完井
出版日期:
2018-05-20

文章信息/Info

Title:
Effects of thermal alternating cycle number on the elastic parameters of set cement
文章編號:
1000 – 7393( 2018 )03 – 0318– 06
作者:
嚴攀1  李軍1  柳貢慧12
1. 中國石油大學(北京)石油天然氣工程學院; 2. 北京工業大學
Author(s):
YAN Pan1 LI Jun1 LIU Gonghui1 2
1. College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China; 2. Beijing University of Technology, Beijing 100124, China
關鍵詞:
頁巖氣藏水平井壓裂熱交變循環水泥石彈性參數套管應力
Keywords:
shale gas reservoir horizontal well fracturing thermal alternating cycle set cement elastic parameter casing stress
分類號:
TE256
DOI:
10.13639/j.odpt.2018.03.008
文獻標志碼:
A
摘要:
頁巖氣藏普遍采用水平井多級分段壓裂方式開發,壓裂過程中水泥環受到循環熱應力的作用,其力學性質受到影響,導致井筒完整性變差,套管變形或損壞。針對這一特點,進行水泥石熱交變循環實驗,研究壓裂級數對套管應力的影響規律。首先利用示波器測試水泥石在經歷熱交變循環后的縱橫波速,計算水泥石的彈性參數,然后模擬計算套管應力,在此基礎上分析在不同的冷卻條件下,不同熱交變循環次數后,水泥石彈性參數和套管應力的變化規律。研究結果表明:在小排量壓裂條件下,水泥石的彈性模量隨熱交變循環次數的增加先逐漸減小后趨于穩定;在大排量壓裂條件下,隨熱交變循環次數的增加,水泥石的彈性模量持續減小;在兩種不同壓裂方式下,水泥石的泊松比均隨熱交變循環次數的增加而增加;套管應力隨著熱交變循環次數的增加逐漸增大,且在大排量壓裂條件下,增幅更明顯。研究結果可為頁巖氣水平井多級分段壓裂過程中套管應力分析提供依據。
Abstract:
Shale gas reservoirs are commonly developed by means of multi-stage fracturing of horizontal well. In the process of fracturing, the mechanical performance of cement sheath is impacted by the cyclic thermal stress. As a result, the borehole integrity is deteriorated and the casing is deformed or damaged. To solve this problem, the thermal alternating cycle experiment was conducted on set cement to investigate the influential laws of fracturing stage number on casing stress. Firstly, the compressional and shear velocities of set cement after thermal alternating cycle were measured by using an oscilloscope, and the elastic parameters of set cement were calculated. Then, the casing stress was simulated and calculated. Finally, the change laws of set cement elastic parameters and casing stress after different thermal alternating cycle numbers under different cooling conditions were analyzed. It is indicated that the elastic modulus of set cement increases firstly and then decreases gradually to a constant value with the increase of thermal alternating cycle number when low-displacement fracturing is carried out while it decreases continuously when high-displacement fracturing is carried out. The Poisson’s ratio of set cement and the casing stress in both fracturing modes increase with the increase of thermal alternating cycle number, and the increase amplitude of casing stress is greater in the mode of high-displacement fracturing. The research results can provide the basis for analyzing the casing stress in the process of multi-stage fracturing of shale gas horizontal wells.

相似文獻/References:

[1]賀豐果  岳湘安 李良川 孫玉龍 魏浩光 劉懷珠.底水油藏非均質性對水平井開采特性的影響[J].石油鉆采工藝,2009,31(4):063.
 HE Fengguo,YUE Xiangan,LI Liangchuan,et al.ASimulation experiment of the impact of bottom water oil reservoirs heterogeneity on production characteristics of horizontal wells[J].Oil Drilling & Production Technology,2009,31(3):063.
[2]王合林 鐘福海.華北油田水平井完井固井技術[J].石油鉆采工藝,2009,31(4):113.
 WANG Helin,ZHONG Fuhai.Completion and cementing techniques in horizontal wells of Huabei Oilfield[J].Oil Drilling & Production Technology,2009,31(3):113.
[3]陳世春,王樹超,張建春,等.鹽下油層水平井鉆井技術[J].石油鉆采工藝,2008,30(3):007.
 CHEN Shichun,WANG Shuchao,ZHANG Jianchun,et al.Horizontal well drilling techniques in subsalt oil zones[J].Oil Drilling & Production Technology,2008,30(3):007.
[4]姜 晶 李春蘭 楊 敏.低滲透油藏壓裂水平井裂縫優化研究[J].石油鉆采工藝,2008,30(4):050.
 JIANG Jing,LI Chunlan,et al.Fracture optimization for horizontal wells in low permeability reservoir[J].Oil Drilling & Production Technology,2008,30(3):050.
[5]劉春來 王曉舟 張洪君 錢可貴.水平井取心工具在杏6-1-平35井中的應用[J].石油鉆采工藝,2008,30(4):114.
 LIU Chunlai,WANG Xiaozhou,ZHANG Hongjun,et al.Application of coring tools to Xing 6-1-Ping 35 well[J].Oil Drilling & Production Technology,2008,30(3):114.
[6]劉樂樂 羅向東.氯化鈣無土相鉆井液體系在蘇丹水平井中的應用[J].石油鉆采工藝,2008,30(4):117.
 LIU Lele,LUO Xiangdong.Application of calcium chloride clay-free drilling fluids system to horizontal wells in Sudan[J].Oil Drilling & Production Technology,2008,30(3):117.
[7]劉福龍 武小平 姜文波 卜令波.靜52-H1Z魚骨型水平井鉆井技術[J].石油鉆采工藝,2008,30(5):029.
 LIU Fulong,WU Xiaoping,JIANG Wenbo,et al.The drilling technology for fishbone Jing 52-H1Z horizontal well[J].Oil Drilling & Production Technology,2008,30(3):029.
[8]婁鐵強 楊立軍.烏茲別克斯坦巨厚鹽層水平井鉆井技術[J].石油鉆采工藝,2008,30(6):016.
 LOU Tieqiang,YANG Lijun.Salt bed of great thickness horizontal drilling technology in Uzbekistan[J].Oil Drilling & Production Technology,2008,30(3):016.
[9]周英芳 侯曉春 羅萬靜 唐良民 周叢叢.分段射孔水平注水井注入動態研究[J].石油鉆采工藝,2008,30(6):088.
 ZHOU Yingfang,HOU Xiaochun,LUO Wanjing,et al.Study on injection performance of horizontal water injection well with segmental perforation[J].Oil Drilling & Production Technology,2008,30(3):088.
[10]符 奇 張烈輝 胡書勇 朱 婧.底水油藏水平井水平段合理位置及長度的確定[J].石油鉆采工藝,2009,31(1):051.
 FU Qi,ZHANG Liehui,HU Shuyong,et al.Determination of optimum horizontal section location and length for horizontal wells in bottom water reservoir[J].Oil Drilling & Production Technology,2009,31(3):051.

更新日期/Last Update: 2018-09-03
彩票126走势图首页