致密砂岩气藏地质-工程一体化泡排技术探索与应用
1. 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 610051
2. 四川恒溢石油技术服务有限公司, 四川成都 610051
| 摘 要： | 致密砂岩气藏储层物性差，气水分布变化大，泡沫排水采气技术是实现其经济开发的关键。以气藏地质特点为基础，深化地质与气藏认识，综合考虑烃源岩和储层控制、砂体结构、孔隙度、渗透率等地质因素，并结合剩余可采储量、动静态评价、积液特征等气藏因素，形成基于气藏-地质研究的精细化选井思路，将地质与工程紧密结合，建立基于地质工程一体化思想的泡排技术。以苏里格致密砂岩气藏为目标，开展气井精细化排采工艺，工艺实施过程中实现全过程精细化跟踪，确保施工过程精细化控制和调整，25口气井措施期间累计增产气量超100万方，措施有效率达96%，目标区块产量得到明显提升；地质工程多因素分析表明无阻流量≥10×104m3/d，孔隙度在6-10%，渗透率在0.5-1mD，含气饱和度为50-60%的致密砂岩气藏气井有良好增产效果。基于地质工程一体化思想的精细化泡排技术为致密砂岩气藏科学有效勘探开发提供技术储备，助力实现气藏效益开发。 |
| 关 键 词： | 致密砂岩气藏; 排水采气; 地质工程一体化; 苏里格气田 |
| DOI： | 10.57237/j.se.2024.01.003 |
View:
Downloads:
收稿日期: 2023-12-24
接受日期: 2024-02-01
在线出版日期: 2024-02-04
Exploration and Application of Geological Engineering Integrated Foam Drainage Technology in Tight Sandstone Gas Reservoirs
CCDC Geological Exploration Development Research Institute, Chendu 610051, China
| Abstract: | Tight sandstone gas reservoir has poor physical properties and great changes in gas and water distribution, foam drainage gas production technology is the key to realize economic development. Based on the geological characteristics of tight sandstone gas reservoir, comprehensively considering geological factors such as source rock and reservoir control, sand body structure, porosity, permeability, and combined with remaining recoverable reserves, dynamic and static evaluations, fluid accumulation characteristics, a refined well selection method has been formed and foam drainage technology has been established based on the concept of integrated geological-engineering. The on-site test results of the geological engineering integrated foam drainage technology show that the cumulative gas production increasen from 25 wells exceeds 100×104m3, with an effective rate of 96%. Geological engineering multi factor analysis shows that tight sandstone gas reservoirs with open-flow rate greater than 10×104m3/d, porosity between 6-10%, permeability between 0.5-1mD, and gas saturation between 50-60% have good production increase effects. The foam drainage technology based on the concept of geological engineering integration provides technical reserves for the scientific and effective exploration and development of tight sandstone gas reservoir, and helps to achieve the beneficial development of the reservoir. |
| Keywords: | Tight Sandstone Gas Reservoir; Foam Drainage; Geological Engineering Integrated; Sulige Gas Field |
参考文献
| [1] | 孙龙德, 邹才能, 贾爱林等. 中国致密油气发展特征与方向 [J]. 石油勘探与开发, 2019, 46(06): 1015-1026. |
| [2] | 冀光, 贾爱林, 孟德伟等. 大型致密砂岩气田有效开发与提高采收率技术对策——以鄂尔多斯盆地苏里格气田为例 [J]. 石油勘探与开发, 2019, 46(03): 602-612. |
| [3] | 贾承造, 郑民, 张永峰. 中国非常规油气资源与勘探开发前景 [J]. 石油勘探与开发, 2012, 39(2): 129-136. |
| [4] | 付金华, 范立勇, 刘新社等.鄂尔多斯盆地天然气勘探新进展、前景展望和对策措施 [J]. 中国石油勘探, 2019, 24(04): 418-430. |
| [5] | 付金华, 范立勇, 刘新社等.苏里格气田成藏条件及勘探开发关键技术 [J]. 石油学报, 2019, 40(02): 240-256. |
| [6] | 王继平, 张城玮, 李建阳等. 苏里格气田致密砂岩气藏开发认识与稳产建议 [J]. 天然气工业, 2021, 41(02): 100-110. |
| [7] | 卢涛, 刘艳侠, 武力超, 王宪文. 鄂尔多斯盆地苏里格气田致密砂岩气藏稳产难点与对策 [J]. 天然气工业, 2015, 35(06): 43-52. |
| [8] | 胡文瑞. 地质工程一体化是实现复杂油气藏效益勘探开发的必由之路 [J]. 中国石油勘探, 2017, 22(01): 1-5. |
| [9] | 赵福豪, 黄维安, 雍锐, 范宇, 黄浩勇, 江琳, 李国真.地质工程一体化研究与应用现状 [J]. 石油钻采工艺, 2021, 43(02): 131-138. |
| [10] | 余淑明, 田建峰.苏里格气田排水采气工艺技术研究与应用 [J]. 钻采工艺, 2012, 35(03): 40-43+9. |
| [11] | 张金发, 李亭, 管英柱等. 致密砂岩气藏低产低效井治理对策及展望 [J]. 能源与环保, 2022, 44(10): 115-124. |
| [12] | 何东博, 冀光, 江乾锋等. 苏里格气田西区高含水致密砂岩气藏差异化开发技术对策 [J]. 天然气工业, 2022, 42(01): 73-82. |
| [13] | 李昌绵, 李爽, 柳琳等. 苏里格气田苏S区块高含水气藏气水识别及开发对策研究 [J]. 非常规油气, 2022, 9(03): 64-71. DOI: 10.19901/j.fcgyq.2022.03.07. |
| [14] | 姚泾利, 刘晓鹏, 赵会涛, 等. 鄂尔多斯盆地盒8段致密砂岩气藏储层特征及地质工程一体化对策 [J]. 中国石油勘探, 2019, 024(002): 186-195. |
| [15] | 蒋思思, 蒋成银, 孟婉莹等. 苏里格气田精细化泡沫排水采气工艺研究 [C] // 宁夏回族自治区科学技术协会. 第十五届宁夏青年科学家论坛石化专题论坛论文集.宁夏石油化工应用杂志社有限公司, 2019: 9. |
