Casing Wear Law and Anti-wear Optimization in Horizontal Wells

Drilling & Production Technology ›› 2022, Vol. 45 ›› Issue (2): 21-27.

• DRILLING TECHNOLOGY • Previous Articles Next Articles

Casing Wear Law and Anti-wear Optimization in Horizontal Wells

CHEN Lili¹，LI Yufei¹，ZHANG Zhi^2,3，CAI Nan^2,3， ZHENG Yushan⁴

1. Engineering Technology Research Institute , PetroChina Southwest Oil ＆ Gas Field CO.，Chengdu, Sichuan 610017, China; 2. Southwest Petroleum University, Chengdu, Sichuan 610500, China; 3. State Key Laboratory of Oil & Gas Reservoirs Geology and Exploitation, Chengdu, Sichuan 610500, China; 4. CNPC Research Institute of Safety & Environment Technology, Beijing 102206, China

Online:2022-03-25 Published:2022-04-28

水平井套管磨损规律及防磨优化研究

陈力力¹，李玉飞¹，张智^2,3，蔡楠^2,3，郑钰山⁴

1 中国石油西南油气田分公司工程技术处 2 西南石油大学 3 油气藏地质及开发工程国家重点实验室 4 中国石油集团安全环保技术研究院有限公司

作者简介:陈力力，高级工程师，西南油气田分公司副总工程师，工程技术处处长，长期从事钻井、完井等井工程关键技术的科研攻关及现场应用。
基金资助:
国家自然科学基金委面上项目“深层页岩气长位移水平井套管完整性研究”（编号：52074234）、四川省青年科技创新研究团队“油气井建井安全四川省青年科技创新研究团队”（编号：2020JDTD0016）、中国石油天然气股份有限公司创新联合体项目“深井/超深井/水平井安全高效建井关键基础理论与技术研究”（编号：2020CX0401000）。

Abstract

Abstract:

In the process of horizontal well drilling, due to the large curvature of the borehole in the deviated section, the drilling tool in the horizontal section lies in the bottom of the well under the influence of gravity and other reasons, the problem of technical casing wear is extremely prominent, which seriously destroys the wellbore integrity of the whole well. Therefore, it is necessary to carry out systematic research on the problem of casing wear and residual strength in horizontal wells. In this paper, casing wear experiment and casing wear efficiency prediction model are combined to study and analyze the casing wear thickness, wear coefficient and casing residual strength after wear, the casing wear thickness and the residual internal pressure resistance and residual extrusion resistance after wear have been obtained as under the condition of the wear coefficient with 1.52 × 10^-1³ / pa^-1 and wellbore curvature with 2 ° / 30m~6 ° / 30m in horizontal well, as well as the residual strength of casing wear is also evaluated. Then, based on the well trajectory optimization, selection of casing inner diameter and the wear belt of drill pipe joint, the optimization suggestions of technical casing wear prevention in horizontal well are summarized. The research results have guiding significance for technical casing wear prevention design and measures in horizontal wells.

Key words:

horizontal well, well trajectory, casing wall thickness, wear belt of drill pipe joint, casing wear, residual strength

摘要： 在水平井钻井过程中，受造斜段井眼曲率大、水平段钻具受重力影响躺在井眼底边等原因，技术套管磨损问题极为突出，井筒完整性存在极大的隐患，对水平井套管磨损及剩余强度的分析展开系统性的研究是非常有必要的。文章采用套管磨损实验和套管磨损效率预测模型相结合的方法，对技术套管的磨损厚度、磨损系数、磨损后套管的剩余强度进行了研究分析，得到了在水平井磨损系数为1.52×10^-13/pa^-1、井眼曲率在（2～6）°/30 m时的套管磨损厚度、磨损后套管的剩余抗内压强度和剩余抗外挤强度，并对磨损后套管剩余强度进行安全评价。随后从井眼轨迹优化、套管内径及钻杆接头耐磨带选择等出发，总结出水平井技术套管防磨优化建议。此项研究结果对水平井技术套管防磨设计及防磨措施具有指导意义。

关键词:

水平井, 井眼轨迹, 套管壁厚, 钻杆接头耐磨带, 套管磨损, 剩余强度

CHEN Lili, LI Yufei, ZHANG Zhi, CAI Nan, ZHENG Yushan. Casing Wear Law and Anti-wear Optimization in Horizontal Wells[J]. Drilling & Production Technology, 2022, 45(2): 21-27.

陈力力, 李玉飞, 张智, 蔡楠, 郑钰山. 水平井套管磨损规律及防磨优化研究[J]. 钻采工艺, 2022, 45(2): 21-27.

References

[1] 覃成锦，高德利，唐海雄, 等.南海流花超大位移井套管磨损预测方法[J].石油钻采工艺2006，28(3):1-3.
TAN Chengiin, GAO Deli, TANG Haixiong, et al.Method of casing wear prediction for Liuhua mega-extended- reach wells in South China Sea[J]. Oil Drilling & Production Technology, 2006, 28 (3) : 1-3.
[2] 姜伟.渤海地区套管磨损问题的研究[J].中国海上油气(工程)，2002,14(1):31-34.
JIANG Wei. Discussion on easing wearing problems occurred in Bohai area in recent years [J]. China Offshore Oil and Gas(Engineering)，2002, 14(1): 31-34.
[3]李中,李炎军,张万栋，等.南海西部地区异常高压气井套管防磨技术[J].石油钻采工艺，2018，40(5):547-552.
LI Zhong，LI Yanjun, ZHANG Wandong, et al.Aninte grated wear prevention technology for easing of the abnormal-ressure gas well in the western South China Sea [J] Oil Drilling & Production Technology，201840(5)547-552.
[4] 张智，孔维伟，刘志伟，等.腐蚀缺陷套管的剩余强度研究[J].中国科技论文，2016，11(21);2467- 2472.
ZHANG Zhi KONG Weiwei, LIU Zhiwei,et al. Study on residual strength of corrosion defect easing [J]. China Science paper, 2016, 11(21):2467-2472.
[5] 饶富培,付建红，张智，等.非均匀套管磨损对套管强度的影响[J].天然气工业，2009，29(8):63-65 RAO Fupei,FU Jianhong, ZHANG Zhi, et al. The effects of non-uniform casing wear on casing strength[J] Natural Gas Industry，2009，29(8):63-65.
[6] 刘飞，付建红，李真祥，等.深井套管磨损几何力学模型及计算分析[J].石油矿场机械，2008，37(2);12-15.
LIU Fei,FU Jianhong,LI Zhenxiang, et al. Geometry mechanical model and calculating analysis of casing wear in deep well[J]. Oil Field Equipment, 2008, 37 ( 2 ) :12-15.
[7] 曾德智，林元华，施太和，等.磨损套管抗挤强度的新算法研究[J].天然气工业，2005，25(2):78-80
ZENG Dezhi,LIN Yuanhua,SHI Taiheet al.Newalgorithm of collapsing strength of wearing casing J.Natura Gas Industry, 2005, 25(2): 78-80.
[8] WILLIAMSON JS. Casing wear: the effect of contact pressure[J]. Journal of Petroleum Technology, 1981, 33(12):2382-2388.
[9] 廖华林, 管志川, 马广军, 等.深井超深井内壁磨损套管剩余强度计算[J].工程力学，2010，27(2):250-256.
LIAO Hualin, GUAN Zhichuan,MA Guangjun,et al Remaining strength calculation of internal wall worn easing in deep and ultra-deep wells[J1. Engineering Mechanics.2010, 27(2): 250-256.
[10]HALL R W Ir, GARKASI A. DESKINS G. et al. Recent advances in casing wear technology[C]//IADC/SPE Drilling Conference February 15-18，1994，Dallas Tex as.Richardson，Texas, USA: OnePetro,1994.
[11] POSS G T. HALL R W Jr. Subsea drilling riser wear: a case history[C]//SPE/IADC Drilling Conference,February 28-March 2，1995，Amsterdam,Netherlands. Rich ardson，Texas，USA:OnePetro, 1995
[12] 刘书杰，谢仁军，刘小龙.大位移井套管磨损预测模型研究及其应用[J].石油钻采工艺，2010，32(6):11-15.
LIU Shujie, XIE Renjun, LIU Xiaolong. Research and application of casing wear prediction for extended reach well [J].Oil Drilling & Production Technology,2010,32(6):11-15.
[13] JOHANCSIK C A, FRIESEN D B. DAWSON R. Torque and drag in directional Wells-Prediction and measurement[J]. Journal of Petroleum Technology，1984,36(6):987-992.
[14] WHITE J P. DAWSON R. Casing wear: laboratory measurements and field predictions [J]. SPE Drilling Engineering,1987, 2(1): 56-62.
[15]韩勇.钻杆接头与套管摩擦磨损问题的理论与试验研究[D].成都:西南石油大学，2001.
HAN Yong. The theory and test research on friction and wear between drill pipe and casing[D].Chengdu:South west Petroleum University, 2001.
[16] 于会媛，张来斌，樊建春，深井超深井中套管磨损机理及试验研究发展综述[J].石油矿场机械，2006，35(4) : 4- 7.
YU Huiyuan, ZHANG Laibin, FAN Jianchun.Summary of casing wear mechanism and test research in deep & ultra deep well [J].Oil Field Equipment. 2006. 35(4). 4-7.
[17]科涅谢夫 T B.斯皮瓦克 A И.马弗柳托夫 M P.钻井液的防磨损和润滑性能[M].朱定宇，杨学函，译.北京:地质出版社，1983:37-58.
T·B·KOHECEB, A · И· CHUBAK. M · P . MABIIOTOB. Anti wear and lubrication properties oh drilling fluid[M]. Translated by ZHU Dingyu, YANG Xuehan. Beijing:Geological PublishingHouse198337-58.
[18]王萍，林凯，王亮，等。几种泥浆加重剂的减磨性能研究[J].石油矿场机械，2005，34(2):27-30.
WANG Ping. LIN Kai, WANG Liang. et al. Study on wear properties of heavy agent of drilling mud[J]. Oi Field Equipment, 2005, 34(2) : 27-30.
[19]吴雪平，金业权，徐泓、深井套管磨损原因及防护[J]，西部探矿工程，2004，16(10).57-59
WU Xueping, JIN Yequan, XU Hong. The reason of deep well case wear and protect[J]. West-China Exploration Engineering，2004,16(10):57-59.

Casing Wear Law and Anti-wear Optimization in Horizontal Wells

水平井套管磨损规律及防磨优化研究

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics

Comments