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| 煤层气田地面集输系统的气井生产状态自动判识 | |
| 引用本文： | 张晓萌,吕泽锋,陈仕林,芮小平,宋现锋,琚宜文,侯泉林.煤层气田地面集输系统的气井生产状态自动判识[J].辽宁工程技术大学学报(自然科学版),2012,31(4):445-451. |
| 作者姓名： | 张晓萌 吕泽锋 陈仕林 芮小平 宋现锋 琚宜文 侯泉林 |
| 作者单位： | 1. 中国科学院研究生院,北京,100049 2. 中油辽河工程有限公司自控仪表所,辽宁盘锦,124010 3. 中联煤层气有限责任公司,北京,100011 |
| 基金项目： | 国家科技重大专项课题资助项目(2011ZX05039-004;2011ZX05039-003) |
| 摘 要： | 针对"多点接入、柔性集输"工艺在气井计量与管理方面仍存在效率低且数据不准确的问题,提出一套基于时序数据的气井生产状态判识方法.首先采用自适应AR滤波方法来自动提取阀组倒井时间,然后基于JSD方法对各个时间段的气井生产状态进行判识,获得气井产气状态和设备运行状态.试验结果表明:该方法能够在复杂生产状态下准确判断出阀组的倒井时间和生产状态,有效减少了野外人工排采工作量,提高了生产管理效率. |
| 关 键 词： | 煤层气 集输工艺 阀组 轮换计量 自适应AR模型 JSD方法 气井生产状态 自动判识 |
Automatic discriminant analysis of gas-well production status in an gas collection system at coal-bed methane field |
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| ZHANG Xiaomeng , LV Zefeng , CHEN Shilin , RUI Xiaoping , SONG Xianfeng , JU Yiwen , HOU Quanlin.Automatic discriminant analysis of gas-well production status in an gas collection system at coal-bed methane field[J].Journal of Liaoning Technical University (Natural Science Edition),2012,31(4):445-451. | |
| Authors: | ZHANG Xiaomeng LV Zefeng CHEN Shilin RUI Xiaoping SONG Xianfeng JU Yiwen HOU Quanlin |
| Institution: | 1.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;2.China Liaohe Petroleum Engineering Co.Ltd.,Panjin 124010,China;3.China United Coalbed Methane Co.Ltd.,Beijing 100011,China) |
| Abstract: | In a multi-inlet passageway and scalable gas collection system,there are still some problems of low efficiency and inaccurate data in gas-well monitoring and management.This paper proposes a new discrimination method of gas-well production status based on temporal data sequence analysis to automate the determination of the gas-well measurement.Firstly,an adaptive autoregressive model(AR) is applied as a filter to exactly determine the switch time between two gas wells.Secondly,the Jensen-Shannon divergence(JSD) is used to discriminate the production status of gas wells and obtain the operating state of the equipment.The field test results in a CBM field show that the rotation measurement time and the production status can be accurately discriminated,even in a complex production condition.Therefore,its application can reduce labor force for system patrolling or manual logging in field and improve the management efficiency. |
| Keywords: | coal-bed methane gas collection technology control valve bank rotation measurement adaptive autoregressive model Jensen-Shannon divergence gas-well production status automatic discrimination |
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