Gaseous Mechanics and Effect Evaluation Method of Wellhead Deliverability Equation in Puguang Gas Field

Abstract:

Puguang gas field is the first deeply buried formation and high-sulfur natural gas field on developing. Due to the special composition of natural gas, the deliverability evaluation has a lot of problems. So it is very difficult to conduct a deliverability evaluation with the pressure of well bottom. In this study, an equation of wellhead deliverability is established by testing data. And it is evaluated through the wellhead open flow potential and absolutely open flow potential which is determined by another deliverability equation from well testing data. Results show that there exists a good linear correlation between wellhead open flow potential and absolutely open flow potential in each well of Puguang gas field. In addition, through applying this correlation, absolutely open flow potential can be calculated through wellhead deliverability equation, which provides a new method to study deliverability.

• Periodical: Advanced Materials Research (Volume 1014)
• Pages: 138-142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1014.138
• Online since: July 2014
• Authors: Ying Xiao*, Yu Kun Han, Ping Zhao, Tian Zhang, Hong Gou, Hua Yan Zhang
• Keywords: High-Sulfur Natural Gas, Open Flow Potential, Productivity Evaluation, Wellhead Deliverability Equation

References

[1] Zhuang Huinong. Gas reservoir dynamic description and well test. Petroleum industry press, 2004: 60-62.

[2] Li Na. The study of Puguang gas field stress calculation method. The Southwest Petroleum University, 2012: 56-59.

[3] Wang Yuwen, Zhang Lunyou, Sun Jiazheng. The method research to determine the gas well reasonable output and new well productivity forecast. Natural gas industry, 1993, 13(5): 60-61.

[4] Zhang Jianye, Wu Zangyuan etc. Use wellhead pressure to calculate gas well absolute open flow potential—Tarim abnormal high pressure gas well application effect evaluation. Natural Gas Exploration and Development, 2011, 34(03): 38-40.

[5] Yuan Shuai. The analysis method research and application of high sulfur content in Puguang gas reservoir capacity. The Southwest Petroleum University, 2012: 56-59.

[6] Xie Xingli, Zhu Yuxin, Ji Guang etc. Evaluation methodology and application of well deliverability in gas reservoir. Natural Gas Geoscience, 2004, 3(15): 276-278.

[7] Yang Gongtian, Li Haitao, Fu Xin. Abnormal mechanism of deliverability equation in great thickness and commingled producing wells of Puguang gas field and the eliminating method. Journal of Daqing Petroleum Institute, 2004: 78-79.

[8] Xu Jinjin, Li Zhiping. The interpretation method of PG gas abnormal test data. Journal of oil and gas, 2008, 30(2): 8-9.