[1]梁 斌,谭先红,焦松杰,等.东海低孔低渗气田气井压裂投产后“一点法”产能方程[J].油气井测试,2018,27(02):73-78.[doi:10.19680/j.cnki.1004-4388.2018.02.012]
　LIANG Bin,TAN Xianhong,JIAO Songjie,et al.“Singlepoint” productivity equation for fractured gas wells in lowporosity and lowpermeability reservoirs, East China Sea[J].Well Testing,2018,27(02):73-78.[doi:10.19680/j.cnki.1004-4388.2018.02.012]
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东海低孔低渗气田气井压裂投产后“一点法”产能方程()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2018年02期
页码:
73-78
栏目:
出版日期:
2018-04-25

文章信息/Info

Title:
“Singlepoint” productivity equation for fractured gas wells in lowporosity and lowpermeability reservoirs, East China Sea
文章编号:
1004-4388(2018)02-0073-06
作者:
梁  斌1;  谭先红1;  焦松杰1;  彭世强1;  张利军1;  段永刚2
1. 中海石油（中国）有限公司北京研究中心  北京  100028
2. 西南石油大学石油与天然气工程学院  四川成都  610500
Author(s):
 LIANG Bin1;  TAN Xianhong1;  JIAO Songjie1;  PENG Shiqiang1;  ZHANG Lijun1;  DUAN Yonggang2
1. CNOOC Research Institute, Beijing 100028, China
2. College of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
关键词:
 ; 天然气; 西湖凹陷; 低孔低渗气田; 压裂; 测试; “一点法”产能方程
Keywords:
 ; natural gas;  Xihu Sag;  lowporosity and lowpermeability reservoirs;  fracturing;  testing;  “singlepoint” productivity equation
分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2018.02.012
文献标志码:
B
摘要:
 东海西湖凹陷气田为典型的低孔、低渗砂岩气田，通常需实施压裂增产措施。由于海上低渗气井压裂测试难度大、测试费用高，致使气井压裂测试资料有限，快速评价单井产能难度大。针对东海不同低渗区块实施压裂测试的探井或生产井资料，回归得到了不同区块气井的二项式产能方程，获得了区块的值范围和平均值，推导出了适合于东海不同低渗区块气井压裂投产后的“一点法”产能方程。实例分析表明，采用推导的“一点法”产能方程，可以只由一个稳定产量点及流压计算无阻流量，且其计算的气井无阻流量与二项式产能方程和陈元千α公式计算的无阻流量非常吻合，表明了本文“一点法”产能方程的有效性。
Abstract:
 The typical lowporosity and lowpermeability sandstone gas reservoirs in the Xihu Sag, East China Sea, are usually treated with fracturing simulation to enhance the recovery. However, due to the difficulty and high cost of fracturing test in offshore gas wells in lowpermeability reservoirs, the fracturing test data are limited, so it is difficult to quickly evaluate the productivity of single well. In this paper, according to the fracturing test data of exploration wells or production wells in different lowpermeability blocks in East China Sea, the binomial productivity equations of gas wells in these blocks are obtained by regression. Then, the numerical range and average value of the "onepoint" regression coefficients of the blocks are determined and finally a “singlepoint” productivity equation suitable for gas wells in these lowpermeability blocks is deduced. The case study shows that, by using the “onepoint” productivity equation, the open flow capacity can be calculated from only one stable production point and flow pressure. The calculated results are consistent with the results from the binomial productivity equation and the Chen Yuanqian formula. This proves the validity of the “singlepoint” productivity equation.

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更新日期/Last Update: 2018-06-21