Article(id=1241038860977754153, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241038854333985467, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.01.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1685721600000, receivedDateStr=2023-06-03, revisedDate=1688659200000, revisedDateStr=2023-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1773816321844, onlineDateStr=2026-03-18, pubDate=1736870400000, pubDateStr=2025-01-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773816321844, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773816321844, creator=13701087609, updateTime=1773816321844, updator=13701087609, issue=Issue{id=1241038854333985467, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='1', pageStart='1', pageEnd='154', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773816320260, creator=13701087609, updateTime=1773819065926, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241050370550591873, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241038854333985467, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241050370554786178, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241038854333985467, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=12, endPage=19, ext={EN=ArticleExt(id=1241038861422350390, articleId=1241038860977754153, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Feature extraction and establishment based on pumping unit working conditions and global fault identification, columnId=1228282191914926752, journalTitle=Journal of Mechanical Strength, columnName=Vibration·Noise·Monitoring·Diagnosis, runingTitle=null, highlight=null, articleAbstract=
In response to the challenging task of fault feature classification in the current working conditions of pumping units,which results in poor adaptability and low recognition rate of the established diagnosis model. The dynamometer card was pretreated by mathematical morphology through the analysis of the motion state of the pumping unit valve and the sucker rod. Then, two methods of obtaining valve opening and closing points and load variation characteristics were proposed, and 54 new features of global faults of pumping units were extracted, and the characteristic database of working conditions of the pumping unit was established. Finally, the algorithm of decision tree, logistic regression and support vector machine was used to verify that the feature database has good classification effect under different working conditions. The characteristic indexes of different fault conditions were evaluated, and the private rule database of each working condition was obtained. The research results demonstrate that the proposed features in this study are capable of effectively identifying comprehensive faults in pumping units, exhibiting a high level of recognition accuracy.
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针对目前抽油机井下工况故障特征分类任务难以解决,使得所建立诊断模型适应性差且识别率低的问题,通过对抽油机阀门和抽油杆运动状态的分析,首先将示功图进行数学形态学预处理;然后提出阀门开闭点获取和载荷变化特征获取的两种方法,提取到抽油机全域故障的54个全新特征,建立了抽油机工况的特征库;最后运用决策树、Logistic回归和支持向量机算法,验证了在不同工况下,该特征库均具有较好的分类效果,评估了不同故障的工况特征指标,得到各工况私有规则库。研究结果表明,提取的特征能够有效识别出抽油机全域故障,并且具有较高的识别精度。
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任泰珠,女,2000年生,陕西渭南人,硕士研究生;主要研究方向为图像处理和故障识别;E-mail:lolly0312@163.com。
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任泰珠,女,2000年生,陕西渭南人,硕士研究生;主要研究方向为图像处理和故障识别;E-mail:lolly0312@163.com。
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Working principle of the oil well pump, figureFileSmall=euEedVOznJ1JQJwHz8cTSQ==, figureFileBig=4hShtGMX1fWy5UM3sEhbGQ==, tableContent=null), ArticleFig(id=1241038874223366516, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图1, caption=
抽油泵工作原理, figureFileSmall=euEedVOznJ1JQJwHz8cTSQ==, figureFileBig=4hShtGMX1fWy5UM3sEhbGQ==, tableContent=null), ArticleFig(id=1241038874651185537, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.2, caption=
Theoretical dynamometer card, figureFileSmall=rOal+2DumDA7mDvjOiACYQ==, figureFileBig=X5gfjnFuV0KtQWJk4Ox0Vw==, tableContent=null), ArticleFig(id=1241038874923815305, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图2, caption=
理论示功图, figureFileSmall=rOal+2DumDA7mDvjOiACYQ==, figureFileBig=X5gfjnFuV0KtQWJk4Ox0Vw==, tableContent=null), ArticleFig(id=1241038875011895696, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.3, caption=
Handle graphics of different structural elements, figureFileSmall=Xqfjg0olVtGJFROWBnDydQ==, figureFileBig=rfThqsQt5jZS10R0QfzBKw==, tableContent=null), ArticleFig(id=1241038875087393172, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图3, caption=
不同结构元素处理图形, figureFileSmall=Xqfjg0olVtGJFROWBnDydQ==, figureFileBig=rfThqsQt5jZS10R0QfzBKw==, tableContent=null), ArticleFig(id=1241038875418743197, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.4, caption=
Theoretical density and actual density, figureFileSmall=f22OuQxVPsI+Iaio2gtcMg==, figureFileBig=GY7DFxaTHCHqshqOGFRpXA==, tableContent=null), ArticleFig(id=1241038875817202083, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图4, caption=
理论密度和实际密度, figureFileSmall=f22OuQxVPsI+Iaio2gtcMg==, figureFileBig=GY7DFxaTHCHqshqOGFRpXA==, tableContent=null), ArticleFig(id=1241038876026917289, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.5, caption=
Acquisition of point B, figureFileSmall=eizy9/mPycfzrFkQ4hBg1w==, figureFileBig=eVy4exhpYCIprp2HMW3YIA==, tableContent=null), ArticleFig(id=1241038876228243884, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图5, caption=
B点的获得, figureFileSmall=eizy9/mPycfzrFkQ4hBg1w==, figureFileBig=eVy4exhpYCIprp2HMW3YIA==, tableContent=null), ArticleFig(id=1241038876312129971, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.6, caption=
Acquisition of B,D points in different fault dynamometer cards, figureFileSmall=OB7rCoGlqODMMpyPNLLifg==, figureFileBig=y0XmrG4LMYqPFY6OO6YKIQ==, tableContent=null), ArticleFig(id=1241038876425376185, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图6, caption=
不同故障示功图中B、D点的获取, figureFileSmall=OB7rCoGlqODMMpyPNLLifg==, figureFileBig=y0XmrG4LMYqPFY6OO6YKIQ==, tableContent=null), ArticleFig(id=1241038876693811645, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.7, caption=
Line type of different fault dynamometer cards, figureFileSmall=g6NKtlCUhzxB++3gwybAxw==, figureFileBig=mwOHNMMmZ+Sj1SzRVUAzlA==, tableContent=null), ArticleFig(id=1241038876828029382, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图7, caption=
不同故障示功图线型, figureFileSmall=g6NKtlCUhzxB++3gwybAxw==, figureFileBig=mwOHNMMmZ+Sj1SzRVUAzlA==, tableContent=null), ArticleFig(id=1241038877067104713, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.8, caption=
Attribute feature, figureFileSmall=k0Mx0GmfjcTT6LkkQD8coA==, figureFileBig=8dKHrwYhs+QEFpGT3Zv1hg==, tableContent=null), ArticleFig(id=1241038877163573714, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图8, caption=
属性特征, figureFileSmall=k0Mx0GmfjcTT6LkkQD8coA==, figureFileBig=8dKHrwYhs+QEFpGT3Zv1hg==, tableContent=null), ArticleFig(id=1241038877272625622, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.9, caption=
Global feature library, figureFileSmall=NH7TOdfH2Bbb88eddmGhuQ==, figureFileBig=PEPqZvnjFB1j4LOqSa7zfg==, tableContent=null), ArticleFig(id=1241038877515895261, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图9, caption=
全域特征库, figureFileSmall=NH7TOdfH2Bbb88eddmGhuQ==, figureFileBig=PEPqZvnjFB1j4LOqSa7zfg==, tableContent=null), ArticleFig(id=1241038877654307299, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.10, caption=
Flow chart of the fault diagnosis, figureFileSmall=AmOBBllF92Bqj3wKSiZoNg==, figureFileBig=SdYltf+rzf5s3PJuMpevyQ==, tableContent=null), ArticleFig(id=1241038877717221863, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图10, caption=
故障诊断流程图, figureFileSmall=AmOBBllF92Bqj3wKSiZoNg==, figureFileBig=SdYltf+rzf5s3PJuMpevyQ==, tableContent=null), ArticleFig(id=1241038877813690862, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Fig.11, caption=
Feature importance of insufficient liquid supply, figureFileSmall=g+2jGnOb8TtS8lKyshKOug==, figureFileBig=NPxbuP9/t68rUdHbplwsAQ==, tableContent=null), ArticleFig(id=1241038877956297204, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=图11, caption=
供液不足特征重要性, figureFileSmall=g+2jGnOb8TtS8lKyshKOug==, figureFileBig=NPxbuP9/t68rUdHbplwsAQ==, tableContent=null), ArticleFig(id=1241038878107292151, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Tab.1, caption=
Line type
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线型 Line type | 判断条件 Judgment conditions |
|---|
| 向上凹弧Upward concave arc | ki>0 | ki+1>0 | Δk>0 |
| 向上凸弧Upward convex arc | ki>0 | ki+1>0 | Δk<0 |
| 向上直线Straight up line | ki>0 | ki+1>0 | Δk=0 |
| 向下凹弧Downward concave arc | ki<0 | ki+1<0 | -Δk<0 |
| 向下凸弧Downward convex arc | ki<0 | ki+1<0 | -Δk>0 |
| 向下直线Straight down line | ki<0 | ki+1<0 | Δk=0 |
| 水平凹弧Horizontal concave arc | ki=0 | ki+1,i+2…>0 | Δki+1>0 |
| 水平凸弧Horizontal convex arc | ki=0 | ki+1,i+2…<0 | -Δki+1>0 |
| 水平线Horizontal line | ki=0 | ki+1=0 | Δk=0 |
), ArticleFig(id=1241038878241509883, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=表1, caption=
线型
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线型 Line type | 判断条件 Judgment conditions |
|---|
| 向上凹弧Upward concave arc | ki>0 | ki+1>0 | Δk>0 |
| 向上凸弧Upward convex arc | ki>0 | ki+1>0 | Δk<0 |
| 向上直线Straight up line | ki>0 | ki+1>0 | Δk=0 |
| 向下凹弧Downward concave arc | ki<0 | ki+1<0 | -Δk<0 |
| 向下凸弧Downward convex arc | ki<0 | ki+1<0 | -Δk>0 |
| 向下直线Straight down line | ki<0 | ki+1<0 | Δk=0 |
| 水平凹弧Horizontal concave arc | ki=0 | ki+1,i+2…>0 | Δki+1>0 |
| 水平凸弧Horizontal convex arc | ki=0 | ki+1,i+2…<0 | -Δki+1>0 |
| 水平线Horizontal line | ki=0 | ki+1=0 | Δk=0 |
), ArticleFig(id=1241038878468002308, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=EN, label=Tab.2, caption=
Experimental results
, figureFileSmall=null, figureFileBig=null, tableContent=
故障类型 Fault type | 决策树 Decision tree | Logistic回归 Logistic regression | 支持向量机 Support vector machine |
|---|
准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% | 准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% | 准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% |
|---|
正常示功图 Normal dynamometer card | 96.8 | 96.9 | 95.79 | 94.64 | 95.9 | 93.29 | 95.84 | 96.31 | 94.78 |
供液不足 Insufficient liquid supply | 95.75 | 95.75 | 93.92 | 94.53 | 95.46 | 93.32 | 95.04 | 95.67 | 93.75 |
气体影响 Gas influence | 95.87 | 95.87 | 96.23 | 94.74 | 94.89 | 95.74 | 95.16 | 95.09 | 95.56 |
固定凡尔漏失 Suction valve leakage | 90.75 | 91.68 | 91.63 | 92.63 | 92.83 | 93.72 | 91.37 | 92.26 | 92.63 |
游动凡尔漏失 Delivery valve leakage | 95.68 | 95.92 | 96.32 | 94.37 | 94.69 | 95.13 | 95.16 | 95.27 | 95.79 |
双凡尔漏失 Double valve leakage | 95.25 | 95.33 | 95.89 | 93.54 | 93.62 | 93.85 | 94.33 | 94.58 | 94.85 |
油稠 Oil consistency | 90.85 | 91.27 | 90.49 | 90.28 | 92.57 | 90.94 | 93.11 | 94.97 | 93.13 |
油井结蜡 Oil well waxing | 95.2 | 95.54 | 95.64 | 93.34 | 95.93 | 94.65 | 94.87 | 95.78 | 94.82 |
出砂 Sand production | 93.32 | 94.23 | 93.98 | 92.27 | 92.63 | 93.37 | 93.12 | 93.17 | 93.65 |
上碰泵 Top pump bumping | 92.35 | 93.34 | 92.83 | 93.78 | 94.95 | 93.62 | 92.98 | 93.93 | 92.73 |
下碰泵 Bottom pump bumping | 91.3 | 93.27 | 93.42 | 90.24 | 91.98 | 92.77 | 91.28 | 90.88 | 91.78 |
), ArticleFig(id=1241038878556082696, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860977754153, language=CN, label=表2, caption=
实验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
故障类型 Fault type | 决策树 Decision tree | Logistic回归 Logistic regression | 支持向量机 Support vector machine |
|---|
准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% | 准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% | 准确率 Precision rate Pprecision/% | 召回率 Recall rate Rrecall/% | 平衡F1分数 Balance F1 score F1-score/% |
|---|
正常示功图 Normal dynamometer card | 96.8 | 96.9 | 95.79 | 94.64 | 95.9 | 93.29 | 95.84 | 96.31 | 94.78 |
供液不足 Insufficient liquid supply | 95.75 | 95.75 | 93.92 | 94.53 | 95.46 | 93.32 | 95.04 | 95.67 | 93.75 |
气体影响 Gas influence | 95.87 | 95.87 | 96.23 | 94.74 | 94.89 | 95.74 | 95.16 | 95.09 | 95.56 |
固定凡尔漏失 Suction valve leakage | 90.75 | 91.68 | 91.63 | 92.63 | 92.83 | 93.72 | 91.37 | 92.26 | 92.63 |
游动凡尔漏失 Delivery valve leakage | 95.68 | 95.92 | 96.32 | 94.37 | 94.69 | 95.13 | 95.16 | 95.27 | 95.79 |
双凡尔漏失 Double valve leakage | 95.25 | 95.33 | 95.89 | 93.54 | 93.62 | 93.85 | 94.33 | 94.58 | 94.85 |
油稠 Oil consistency | 90.85 | 91.27 | 90.49 | 90.28 | 92.57 | 90.94 | 93.11 | 94.97 | 93.13 |
油井结蜡 Oil well waxing | 95.2 | 95.54 | 95.64 | 93.34 | 95.93 | 94.65 | 94.87 | 95.78 | 94.82 |
出砂 Sand production | 93.32 | 94.23 | 93.98 | 92.27 | 92.63 | 93.37 | 93.12 | 93.17 | 93.65 |
上碰泵 Top pump bumping | 92.35 | 93.34 | 92.83 | 93.78 | 94.95 | 93.62 | 92.98 | 93.93 | 92.73 |
下碰泵 Bottom pump bumping | 91.3 | 93.27 | 93.42 | 90.24 | 91.98 | 92.77 | 91.28 | 90.88 | 91.78 |
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