|本期目录/Table of Contents|

[1]任广磊,罗勇,高志彬.大牛地气田奥陶系碳酸盐岩气藏水平井产能主控因素评价[J].断块油气田,2021,(01):104-108.[doi:10.6056/dkyqt202101019]
 REN Guanglei,LUO Yong,GAO Zhibin.Evaluation of main factors affecting horizontal well productivity for the Ordovician carbonate gas reservoir in Daniudi gas field[J].Fault-Block Oil and Gas Field,2021,(01):104-108.[doi:10.6056/dkyqt202101019]
点击复制

大牛地气田奥陶系碳酸盐岩气藏水平井产能主控因素评价(PDF)
分享到:

《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
期数:
2021年01
页码:
104-108
栏目:
开发工程
出版日期:
2021-01-25

文章信息/Info

Title:
Evaluation of main factors affecting horizontal well productivity for the Ordovician carbonate gas reservoir in Daniudi gas field
文章编号:
19
作者:
任广磊1罗勇23高志彬3
1.中国石化华北油气分公司勘探开发研究院,河南 郑州 450006;2.西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都 610050; 3.中国石油川庆钻探工程有限公司地质勘探开发研究院,四川 成都 610056
Author(s):
REN Guanglei1 LUO Yong23 GAO Zhibin3
1.Research Institute of Exploration and Development, North China Oil and Gas Company, SINOPEC, Zhengzhou 450006, China; 2.State Key Laboratory of Oil and Gas Reservoir Geology and Development Engineering, Southwest Petroleum University, Chengdu 610050, China; 3.Research Institute of Geological Exploration and Development, CNPC Chuanqing Drilling Engineering Co., Ltd., Chengdu 610056, China
关键词:
产能评价压裂水平井奥陶系碳酸盐岩大牛地气田
Keywords:
productivity evaluation fracturing horizontal well Ordovician carbonate Daniudi gas field
分类号:
TE31
DOI:
10.6056/dkyqt202101019
文献标志码:
A
摘要:
碳酸盐岩气藏微观孔隙结构和渗流特征复杂,无阻流量与地质、工程参数相关性差,单一统计方法不能有效评价水平井产能的主控因素。为此,文中提出一种新的产能主控因素评价方法,即在气井动态分类上,用Pearson,Spearman相关系数和决策树评分法对影响因素进行打分和排序,选择更具代表性的产能评价指标,逐类逐井评价。将新方法应用于大牛地奥陶系气藏37口压裂水平井评价,结果表明:1)水平井初期3~6个月平均产量比采用“一点法”得出的无阻流量更适合作为产能评价指标;2)Ⅰ,Ⅱ类气井,地层系数、含气性是其产能的主控因素,但储层物性掩盖了水平井长度、压裂级数的重要性;3)Ⅲ类气井,储层物性总体较差,水平井长度和压裂级数是其主控因素。新方法明确了将裂缝 ̄溶蚀孔洞发育、含气性好、有效厚度大的优质储层作为部署靶点,同时,有必要通过优化水平井长度和压裂级数来提高孔隙型储层水平井产能。
Abstract:
The micro pore structure and seepage characteristics of carbonate gas reservoir are complex, and the correlation between the absolute flow(AOF) and geological and engineering parameters is poor, so the single statistical method can not effectively identify the main control factors of horizontal well productivity. A new evaluation method of main control factors of well productivity is proposed. For the gas well dynamic classification, the influencing factors are scored and sequenced by Pearson, Spearman correlation and decision tree scoring method, and the representative production capacity evaluation index is selected to evaluate each well according to its classification. The new method is applied to evaluate 37 fractured horizontal wells in Daniudi Ordovician gas reservoir. The result shows: (1) the average production in the initial 3—6 months of horizontal wells is more suitable for productivity evaluation index than AOF obtained by "one-point method"; (2) for class Ⅰ and Ⅱ gas wells, the formation coefficient and gas content are the main control factors of gas well productivity, but reservoir physical properties cover up the importance of the length of horizontal wells and the fracturing stages; (3) for class Ⅲ gas wells, the physical properties of the reservoir are generally poor, and the length of horizontal wells and fracturing stages are the main control factors. The new method makes it clear that high-quality reservoirs with developed fractures-dissolved pores, good gas-bearing property and large effective thickness are selected as deployment targets, meanwhile, it is necessary to improve the productivity of horizontal wells of porous reservoir by optimizing the length of horizontal wells and the number of fracturing stages.

参考文献/References:

-

相似文献/References:

[1]王禹川,王怒涛,袁晓满,等.碳酸盐岩缝洞型油藏产能评价方法探讨[J].断块油气田,2011,18(05):637.
[2]张凤喜,陈明,马国新,等.一种优化压裂水平井井网参数的新方法[J].断块油气田,2010,17(06):751.
[3]李树松 杨志兴 刘成林.带有多条2D裂缝的压裂水平井试井分析[J].断块油气田,2007,14(05):88.
 Li Shusong,Yang Zhixing,Liu Chenglin.Well test analysis of fractured horizontal well withmultiple 2D fractures[J].Fault-Block Oil and Gas Field,2007,14(01):88.
[4]关富佳,安小平,史立勇.电缆地层测试复合流动压力转换模型[J].断块油气田,2012,19(02):270.[doi:10.6056/dkyqt201202032]
 Guan Fujia,An Xiaoping,Shi Liyong.Composite flow pressure transformation model of wireline formation test[J].Fault-Block Oil and Gas Field,2012,19(01):270.[doi:10.6056/dkyqt201202032]
[5]马奎前,刘英宪,苏彦春.渤海S油田高含水期加密井产能评价[J].断块油气田,2013,20(01):71.[doi:10.6056/dkyqt201301017]
 Ma Kuiqian,Liu Yingxian,Su Yanchun.Productivity evaluation of infill well at high water cut stage in S Oilfield, Bohai Bay[J].Fault-Block Oil and Gas Field,2013,20(01):71.[doi:10.6056/dkyqt201301017]
[6]李亚洲,李勇明,罗攀,等.页岩气渗流机理与产能研究[J].断块油气田,2013,20(02):186.[doi:10.6056/dkyqt201302013]
 Li Yazhou,Li Yongming,Luo Pan,et al.Study on seepage mechanism and productivity of shale gas[J].Fault-Block Oil and Gas Field,2013,20(01):186.[doi:10.6056/dkyqt201302013]
[7]钟家峻,廖新武,赵秀娟,等.BZ25-1低渗透油田压裂水平井参数优化[J].断块油气田,2013,20(06):791.[doi:10.6056/DKYT201306028]
 Zhong Jiajun,Liao Xinwu,Zhao Xiujuan,et al.Parameter optimization of fractured horizontal well in BZ25-1 low permeability oilfield[J].Fault-Block Oil and Gas Field,2013,20(01):791.[doi:10.6056/DKYT201306028]
[8]张晨朔,姜汉桥.低渗透油藏压裂水平井井网优化方法研究[J].断块油气田,2014,21(01):69.[doi:10.6056/dkyqt201401017]
 Zhang Chenshuo,Jiang Hanqiao.Study on optimization of hydraulically fractured horizontal well pattern in low permeability reservoirs[J].Fault-Block Oil and Gas Field,2014,21(01):69.[doi:10.6056/dkyqt201401017]
[9]曲占庆,黄德胜,李小龙,等.低渗气藏压裂水平井裂缝参数优化研究与应用[J].断块油气田,2014,21(04):486.[doi:10.6056/dkyqt201404019]
 Qu Zhanqing,Huang Desheng,Li Xiaolong,et al.Research and application of fracture parameter optimization of fractured horizontal well in low permeability gas reservoir[J].Fault-Block Oil and Gas Field,2014,21(01):486.[doi:10.6056/dkyqt201404019]
[10]赵超.致密气藏多段压裂水平井非稳态复合产能模型[J].断块油气田,2015,22(05):651.[doi:10.6056/dkyqt201505023]
 Zhao Chao.Transient and compound productivity model for multi-fractured horizontal well in tight gas reservoir[J].Fault-Block Oil and Gas Field,2015,22(01):651.[doi:10.6056/dkyqt201505023]

备注/Memo

备注/Memo:
-
更新日期/Last Update: 2021-01-25