Optimization and Performance Evaluation of High-grade Steel Casing Section Milling Tools

doi:10.3969/j.issn.1006-6535.2021.02.025

Abstract

Abstract: Casing section milling technology has applied widely to old wells sidetracking and abandoned wells, with broad application prospects. Aiming at solving the problems of long cutting time, slow milling speed and short footage of conventional section milling tools in the section milling process of high-grade steel casing, high-performance section milling tools were designed for Φ177.8 mm casing. The cutting blade of section milling tool was made of imported tungsten carbide with high strength and high stability. The tooth structure of the cutting blade was optimized as concave teeth + sharpened diamond teeth, and the tooth structure of the milling blade was optimized as concave teeth + non-evenly arranged teeth. The cutting and section milling effects of the designed section milling tool were evaluated by ground experiment and LS-DYNA simulation system. The results showed that the high-grade steel casing section casing cut off the casing within 5.00 min, the section milling speed was more than 0.8 m/h, and the average footage of single section milling was about 10 m. The casing section milling efficiency was improved significantly. Φ177.8 mm high-grade steel casing section milling tool is advantaged by short cutting time, high section milling speed, and long footage of single milling, with wide promotion and application prospects.

Key words: section milling tool, casing, cutting teeth, sidetracking, abandoned well, simulation

CLC Number:

TE928

Miao Juan, Huang Bing, Xie Li, Tang Ming. Optimization and Performance Evaluation of High-grade Steel Casing Section Milling Tools[J]. Special Oil & Gas Reservoirs, 2021, 28(2): 163-170.

References

[1] 常笃,陆红军,齐银,等.安塞特低渗透油藏侧钻井提高单井产量技术研究[J].钻采工艺,2019,42(5):56-58.
CHANG Du,LU Hongjun,QI Yin,et al.Research on how to improve single-well oil production of side-tracked wells in Ansai low permeability reservoir[J].Drilling & Production Technology,2019,42(5):56-58.
[2] 曹连军.套损井侧钻技术研究[J].大庆石油地质与开发,2006,25(4):85-87.
CAO Lianjun.Study and application of sidetrack drilling technology[J].Petroleum Geology & Oilfield Development in Daqing,2006,25(4):85-87.
[3] 刘乃震,王廷瑞,丁文正,等.油气井侧钻技术研究与应用[J].特种油气藏,2008,15(5):97-100.
LIU Naizhen,WANG Tingrui,DING Wenzheng,et al.Study and application of sidetrack drilling technology[J].Special Oil & Gas Reservoirs,2008,15(5):97-100.
[4] 闫玉鹏,李爽.利用侧钻水平井、分支井开采静17块低渗高凝油油藏[J].特种油气藏,2004,11(4):81-85.
YAN Yupeng,LI Shuang.Recover low permeability high pour-point oil reservoir in block Jing17 by side-tracking horizontal well and lateral well[J].Special Oil & Gas Reservoirs,2004,11(4):81-85.
[5] 张戈,李森,黄克献,等.小井眼侧钻水平井技术的应用[J].大庆石油地质与开发,2005,24(6):40-41.
ZHANG Ge,LI Sen,HUANG Kexian,et al.Slim hole sidetrack horizontal well drilling technique[J].Petroleum Geology & Oilfield Development in Daqing,2005,24(6):40-41.
[6] 张羽臣,李巍然,刘长柱,等.同层侧钻水平井技术在埕北油田的应用[J].钻采工艺,2019,42(1):17-20.
ZHANG Yuchen,LI Weiran,LIU Changzhu,et al.Application of horizortal well sidetracking at the same layer in Chengbei Oilfield[J].Drilling & Production Technology,2019,42(1):17-20.
[7] 胥豪,唐洪林,董广华,等.永进油田深层侧钻水平井钻井技术[J].石油地质与工程,2020,34(6):84-88.
XU Hao,TANG Honglin,DONG Guanghua,et al.Deep sidetracking horizontal well drilling technology in Yongjin Oilfield[J].Petroleum Geology & Engineering,2020,34(6):84-88.
[8] 李云峰,潘俊英,周岩,等.冀东油田浅层小井眼侧钻水平井钻井完井关键技术[J].石油钻探技术,2020,48(6):8-14.
LI Yunfeng,PAN Junying,ZHOU Yan,et al.Key technologies for drilling and completing shallow slim hole sidetracking horizontal wells in the Jidong Oilfield[J].Petroleum Drilling Techniques,2020,48(6):8-14.
[9] 苏良银,常笃,杨海恩,等.低渗透油藏侧钻水平井小井眼分段多簇压裂技术[J].石油钻探技术,2020,48(6):94-98.
SU Liangyin,CHANG Du,YANG Haien,et al.Segmented multi-cluster fracturing technology for sidetrack horizontal well with slim holes in low permeability reservoir[J].Petroleum Drilling Techniques,2020,48(6):94-98.
[10] 樊继强,王委,陈小元,等.苏北盆地小井眼侧钻井关键技术研究与应用[J].石油钻探技术,2019,47(5):22-27.
FAN Jiqiang,WANG Wei,CHEN Xiaoyuan,et al.Research and application of key technologies for slim hole sidetracking wells in the Subei Basin[J].Petroleum Drilling Techniques,2019,47(5):22-27.
[11] 许军富.弃井作业中段铣和扩眼联作新技术[J].石油机械,2017,45(6):17-21.
XU Junfu.New well abandonment operation technology-integrated milling and underreaming technology[J].China Petroleum Machinery,2017,45(6):17-21.
[12] 王纯全,李美平,赵常青,等.新型环氧树脂在四川壳牌区块弃井项目的应用[J].钻采工艺,2019,42(5):110-112.
WANG Chunquan,LI Meiping,ZHAO Changqing,et al.Applicaiton of epoxy resin in well abandonment at Shell Block in Sichuan[J].Drilling & Production Technology,2019,42(5):110-112.
[13] 吴墨染,饶开波,董超,等.套管段铣工艺在大港油田的应用[J].长江大学学报(自然科学版),2014,11(32):70-72.
WU Moran,RAO Kaibo,DONG Chao,et al.Application of casing forging and milling technology in Dagang Oilfield[J].Journal of Yangtze University(Natural Science Edition),2014,11(32):70-72.
[14] 黎凌,王新建,龙爱国.金华1井小尺寸高强度套管段铣技术实践[J].钻采工艺,2018,41(1):28-31.
LI Ling,WANG Xinjian,LONG Aiguo.Practice of small-size high-strength casing section milling in well JH1[J].Drilling ＆ Production Technology,2018,41(1):28-31.
[15] 张传凤.金坛盐井套管段铣关键技术研究与应用[J].地质学刊,2019,43(4):696-700.
ZHANG Chuanfeng.Research and application of key casing pipe forging and milling technology in the Jintan salt well[J].Journal of Geology,2019,43(4):696-700.
[16] 金岩松,刘合.几种高难套损井的套损形态及修井工艺[J].大庆石油地质与开发,2004,23(1):46-47,55.
JIN Yansong,LIU He.Casing shapes and its workover technique for casing damage wells[J].Petroleum Geology & Oilfield Development in Daqing,2004,23(1):46-47,55.
[17] OBODOZIE I E,TRAHAN S J,JOPPE L C J.Eliminating sustained casing pressure in well abandonment[C].OTC26432-MS,2016:1-15.
[18] 狄勤丰,吴志浩,王文昌,等.基于SVM的套管最大von Mises应力预测方法[J].石油钻探技术,2019,47(3):62-67.
DI Qinfeng,WU Zhihao,WANG Wenchang,et al.An prediction method for determining the maximum von mises stress in casing based on SVM[J].Petroleum Drilling Techniques,2019,47(3):62-67.
[19] 杨同玉,韩峰,马兰荣.尾管固井回接压裂套管屈曲失效研究[J].断块油气田,2019,26(5):666-669.
YANG Tongyu,HAN Feng,MA Lanrong.Casing buckling failure analysis in tie-back fracturing under liner cementing conditions[J].Fault-Block Oil & Gas Field,2019,26(5):666-669.
[20] STOWE C,PONDER A.Performance advance in section milling technology[C].SPE145957-MS,2011:1-6.
[21] BUTLER B,BENSON C,STEELE D.A new advance in window exit milling using aluminum casing[C].SPE176122-MS,2015:1-17.
[22] VODEN G S,PFANNENSTIEL G,MATTHEWS P.Technical improvements in mill profile design and cutting structures:case histories and developments[C].SPE94264,2005:1-8.
[23] 陈新勇,付潇,李东杰,等.国内老井侧钻技术研究现状及展望[J].石油矿场机械,2019,48(6):73-76.
CHEN Xinyong,FU Xiao,LI Dongjie,et al.Research status and prospect of sidetracking technology for old wells in China[J].Oil Field Equipment,2019,48(6):73-76.
[24] WIESENBORN K,BAKLANOV N,GOURMELON P O,et al.Automated wireline milling system[C].SPE194232-MS,2019:1-17.
[25] 司刚强,李伟,徐海丰,等.基于DIC和声发射的TC4合金疲劳损伤状态监测方法[J].东北石油大学学报,2020,44(3):119-126.
SI Gangqiang,LI Wei,XU Haifeng,et al.Monitor of TC4 alloy fatigue damage based on DIC and acoustic emission technologies[J].Journal of Northeast Petroleum University,2020,44(3):119-126.
[26] 许亮斌,李朝玮,王宇,等.水下采油树30CrMo钢/625合金异金属腐蚀机理实验研究[J].石油钻探技术,2019,47(4):116-121.
XU Liangbin,LI Chaowei,WANG Yu,et al.An experimental study on the heterometallic corrosion mechanism of 30CrMo Steel/625 alloy for underwater x-trees[J].Petroleum Drilling Techniques,2019,47(4):116-121.
[27] PONTON C B,ROBERTS J M,FIPKE S R,et al.Are you on the right track with casing milling? innovative precision-milled windows offer improved casing exit reliability for sidetracking and multilateral completions[C].SPE127764-MS,2010:1-8.
[28] 王鹏,时凯华,顾金宝,等.不同粘结相碳化钨基硬质合金的研究与应用(I)[J].硬质合金,2020,37(1):74-89.
WANG Peng,SHI Kaihua,GU Jinbao,et al.A Review on WC-based cemented carbides with different binder phases(I)[J].Cemented Carbide,2020,37(1):74-89.
[29] 王鹏,时凯华,顾金宝,等.不同粘结相碳化钨基硬质合金的研究与应用(II)[J].硬质合金,2020,37(2):152-169.
WANG Peng,SHI Kaihua,GU Jinbao,et al.A Review on WC-based cemented carbides with different binder phases(II)[J].Cemented Carbide,2020,37(2):152-169.