在线不分离湿气计量技术在页岩气中的应用
Application of Non-Separation On-Line Wet Gas Metering Technology in Shale Gas Development
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- 引用格式:
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王念榕,骆成松,巴玺立,张哲,巨龙,徐英,吴海涛,赵国安.在线不分离湿气计量技术在页岩气中的应用[J].天然气与石油,2020,38(4):43-47.doi:
Wang Nianrong, Luo Chengsong, Ba Xili, Zhang Zhe, Ju Long, Xu Ying, Wu Haitao, Zhao Guoan.Application of Non-Separation On-Line Wet Gas Metering Technology in Shale Gas Development[J].Natural Gas and Oil,2020,38(4):43-47.doi:
- DOI:
- 作者:
- 王念榕1 骆成松2 巴玺立1 张哲1 巨龙2 徐英3 吴海涛3 赵国安2
Wang Nianrong1, Luo Chengsong2, Ba Xili1, Zhang Zhe1, Ju Long2, Xu Ying3, Wu Haitao3, Zhao Guoan2
- 作者单位:
- 1. 中国石油天然气股份有限公司规划总院, 2. 中国石油天然气股份有限公司浙江油田分公司,3. 天津大学电气自动化与信息工程学院
PetroChina Planning and Engineering Institute, Beijing, 100083, China; 2. PetroChina Zhejiang Oilfield Company, Hangzhou, Zhejiang, 310023, China; 3. School of Electrical and Information Engineering. Tianjin University, Tianjin, 300072, China
- 关键词:
- 页岩气;井口计量;在线不分离;湿气;文丘里
Shale gas; Wellhead metering; Online non-separating; Wet gas; Venturi
- 摘要:
井口带液计量问题普遍存在于页岩气开采中,准确的气、液计量是合理制定开采制度的前提。随着在线不分离湿气计量技术的日渐成熟,取代分离计量正在稳步进行中。选取基于长喉颈文丘里测量技术的湿气流量计,在某一页岩气作业区进行了为期63 d的测试比对工作。测试结果显示:气相测量的平均误差为0.7%,均方根误差为3.6%,有93.65%的数据点测量误差位于±5%以内;液相测量的平均误差为4.1%,均方根误差为11.49%,有87.3%的数据点测量误差位于 ±10%以内，85.7%的数据点绝对误差在±2 m3/d以内;测试结果能够满足页岩气开采过程中的需求。采用在线不分离湿气计量技术,可以大大简化井场工艺,有效降低地面工程建设投资,有助于页岩气低成本开发。
The issue of gas-liquid two phase flow metering at the wellhead is prevailing in shale gas mining and the accurate gas-liquid metering is crucial for rationally developing the production plan. The online non-separating metering technology is gradually replacing the separator and becomes the trend of the times. In the experiment, the new type of wet gas flowmeter, which is based on Venturi measuring technology, is selected for test in a shale gas development area of China, with the duration of 63 days.For thegas measurement,the average error is0.7%,the root-mean-square-error is3.6%, and93.65%of the test point measurement error are within±5%.For theliquid measurement,the average error is4.1%, the root-mean-square-error is 11.49%,and87.3%of the test point measurement error are within±10%.Besides, the absolute error of85.7%test point is within ±2 m3/d.The test results can well meet shale gas mining. With non-separation online metering technology, wellpad process can be streamlined considerably and the engineering investment for surface facilities be lowered, which promotes the economical development of shale gas in China.
