Study and Test on the Mechanism of In-situ Combustion with Combination of Vertical and Horizontal Wells in Thick Heavy Oil Reservoirs

doi:10.3969/j.issn.1006-6535.2022.01.019

Abstract

Abstract: In order to solve the problems of serious overlap in combustion range, poor longitudinal development degree and low recovery percent of in-situ combustion in conventional straight wells in thick heavy oil reservoirs, numerical simulation method was applied to determine the combustion spreading law of in-situ combustion with combination of vertical and horizontal wells, analyze the production characteristics of vertical and horizontal wells at different stages, and figure out the action mechanism of straight and horizontal wells. The results of the study showed that the well network pattern of in-situ combustion with combination of vertical and horizontal wells changed the original in-situ combustion field of vertical wells, guided the combustion downward, and improved the longitudinal swept volume; the application of in-situ combustion with combination of vertical and horizontal wells to in the reservoir development could realize the dual effects of displacement and pol drainage, effective expansion of the swept volume of the in-situ combustion, and higher recovery percent of the in-situ combustion. This study provides a theoretical reference for the development mode transition for thick heavy oil reservoirs after steam stimulation.

Key words: in-situ combustion, in-situ combustion with vertical and horizontal well combination, oil displacement and drainage, swept volume

CLC Number:

TE345

Liu Qian. Study and Test on the Mechanism of In-situ Combustion with Combination of Vertical and Horizontal Wells in Thick Heavy Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2022, 29(1): 128-133.

References

[1] 唐春燕,刘蜀知.稠油热采技术综述[J].内蒙古石油化工,2007,34(6):128-130.
TANG Chunyan,LIU Shuzhi.Review of thermal recovery technology for heavy oil[J].Inner Mongolia Petrochemical Industry,2007,34(6):128-130.
[2] 王元基,何江川,廖广志,等.国内火驱技术发展历程与应用前景[J].石油学报,2012,33(5):909-914.
WANG Yuanji,HE Jiangchuan,LIAO Guangzhi,et al.Overview on the development history of combustion drive and its application prospect in China[J].Acta Petrolei Sinica,2012,33(5):909-914.
[3] 张方礼,户昶昊,马宏斌,等.辽河油田火驱开发技术进展[J].特种油气藏,2020,27(6):12-19.
ZHANG Fangli,HU Changhao,MA Hongbin,et al.Development of fire flooding technology in Liaohe Oilfield[J].Special Oil & Gas Reservoirs,2020,27(6):12-19.
[4] 乐舒.直井-水平井组合井网立体火驱技术研究[D].北京:中国石油大学(北京),2018.
LE Shu.Research on three-dimensional in-situ combustion technology in combined straight-horizontal well network[D].Beijing:China University of Petroleum(Beijing),2018.
[5] 汪子昊,李治平,赵志花.火烧油层采油技术的应用前景探讨[J].内蒙古石油化工,2008,35(7):11-15.
WANG Zihao,LI Zhiping,ZHAO Zhihua.Discussions on application prospects of oil-burnt layer oil extraction technology[J].Inner Mongolia Petrochemical Industry,2008,35(7):11-15.
[6] 蒋海岩,李晓倩,高成国,等. 火驱阶段特征对比与分析[J].油气藏评价与开发, 2020,10(5):114-119.
JIANG Haiyan,LI Xiaoqian,GAO Chengguo,et al.Comparison and analysis of stage feature of in situ combustion[J].Reservoir Evaluation and Development, 2020, 10(5): 114-119.
[7] 张鸿.边底水稠油油藏火驱可行性及操作参数优选实验研究[J].石油地质与工程,2020,34(5):74-78.
ZHANG Hong.Experimental study on feasibility of fire flooding and optimization of operation parameters in heavy oil reservoir with edge and bottom water[J].Petroleum Geology & Engineering,2020,34(5):74-78.
[8] 赵睿智,陈明贵,高飞,等.厚层稠油油藏直平组合火驱优化[J].断块油气田,2020,27(2):233-237.
ZHAO Ruizhi,CHEN Minggui,GAO Fei,et al.In-situ combustion optimization of vertical and horizontal wells combination for heavy oil reservoirs with thick layer[J].Fault-Block Oil & Gas Field,2020,27(2):233-237.
[9] 才业.水淹稠油油藏火驱开发受效特征研究[J].特种油气藏,2019,27(5):125-131.
CAI Ye.Study on the response characteristics of fire flooding in water-flooded heavy oil Reservoirs[J].Special Oil & Gas Reservoirs,2019,27(5):125-131.
[10] 关文龙,宫宇宁,唐君实,等.多层油藏火驱开发模式探讨[J].特种油气藏,2020,27(6):60-66.
GUAN Wenlong,GONG Yuning,TANG Junshi,et al.Study on fire flooding development mode of multi-layer reservoirs[J].Special Oil & Gas Reservoirs,2020,27(6):60-66.
[11] 王诗灏.特深层稠油油藏火驱可行性[J].大庆石油地质与开发,2019,38(6):83-89.
WANG Shihao.Feasibility of the fire flooding in the extra-deep heavy oil reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(6):83-89.
[12] 杨智,廖静,高成国,等.红浅1井区直井火驱燃烧区带特征[J].大庆石油地质与开发,2019,38(1):89-93.
YANG Zhi,LIAO Jing,GAO Chengguo,et al.Characteristics of the in situ combustion zone for the vertical well in Well Block HQ1[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(1):89-93.
[13] 杨俊印,闫红星,刘家林,等.杜66块火驱典型产出流体变化特征[J].特种油气藏,2020,27(3):137-141.
YANG Junyin,YAN Hongxing,LIU Jialin,et al.Typical production fluid properties of fire-flooding in Block Du66[J].Specail Oil & Gas Reservoirs,2020,27(3):137-141.
[14] 韩国庆,吴晓东,李伟超,等.THAI技术及其在稠油开发中的应用[J].油气田地面工程,2007,26(5):17-18.
HAN Guoqing,WU Xiaodong,LI Weichao,et al.THAI technology and its application in heavy oil development[J].Oil-Gasfield Surface Engineering,2007,26(5):17-18.
[15] 宁奎,袁世宝,蒋海岩.火烧油层理论与实践[M].东营:中国石油大学出版社,2010:38-42.
NING Kui,YUAN Shibao,JIANG Haiyan.In-situ combustion theory & practice[M].Dongying:China University of Petroleum Press,2010:38-42.
[16] 关文龙,张霞林,席长丰,等.稠油老区直井火驱驱替特征与井网模式选择[J].石油学报,2017,38(4):935-972.
GUAN Wenlong,ZHANG Xialin,XI Changfeng,et al.Displacement characteristics and well pattern selection of vertical-well fire flooding in heavy oil reservoirs[J].Acta Petrolei Sinica,2017,38(4):935-972.
[17] 邢景奎,苗崇良.高3-6-18块火驱采油数值模拟研究[J].特种油气藏,2009,16(3):62-65.
XING Jingkui,MIAO Chongliang.Numerical simulation of fire flood for Gao 3-6-18 Block[J].Special Oil & Gas Reservoirs,2009,16(3):62-65.
[18] 关文龙,吴淑红,梁金中,等.从室内实验看火驱辅助重力泄油技术风险[J].西南石油大学学报(自然科学版),2009,31(4):68-72.
GUAN Wenlong,WU Shuhong,LIANG Jinzhong,et al.The research on engineering risk in combustion assisted gravity drainage based on indoor experiment[J].Journal of Southwest Petroleum University(Natural Science Edition),2009,31(4):68-72.