Laboratory simulation study on exploitation of fractured and cavernous reservoirs
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摘要: 基于塔河缝洞型碳酸盐岩油藏地质特征和开采规律,建立了一套能够模拟以补充能量和重力置换为主要作用机理的单井注水替油室内试验装置。在接近实际油藏条件下,采用注水、注气进行了对注入孔隙体积倍数与采出程度、压力等关系试验,结果表明:天然能量开采程度低;多轮注水在两次注水后基本失效;多轮注水稳定开采后,后期的多轮注气开采有很好的采出效果,尤其是前三轮尤佳,注气阶段后采出程度增加了27.4%。Abstract: Based on the geological characteristics and the exploitation rule of Tahe fractured carbonate reservoir, a set of indoor experimental devices that can be used to simulate single-well water injection for oil displacement is established. The main mechanism of the devices is to add energy and replace gravity. Closing to the actual conditions of the reservoir, water injection and gas injection are carried out to test the correlation between the multiple of pore volume and the recovery degree and stress. The results show that exploitation with natural energy is on a low level. And the injection after two rounds becomes invalid basically. In addition, after several rounds of water stability in the exploitation, gas injection in the later rounds of exploitation has a good recovery results, especially in the former three rounds. After gas injection there is an increase of 27.4 percent in the degree of recovery.
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Key words:
- fractured and cavernous reservoir /
- simulation /
- water injection /
- gas injection /
- effect
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[1] [1]李士伦,周守信,杜建芬,等.国内外注气提高石油采收率技术回顾与展望[J].油气地质与采收率,2002,9(2):1-5.
LI Shilun, ZHOU Shouxin, DU Jianfen, et al. Retrospect and prospect of technology gas injection at home and abroad to enhance oil recovery[J]. Petroleum Geology and Recovery, 2002, 9(2): 1-5.
[2]CHRISTENSEN J R.水气交替(WAG)注入油田?验回顾[J].吐哈油气,2001,3(6):81-89.
CHRISTENSEN J R. Experience retrospect of water alternating gas (WAG)injection[J]. Tuha Oil & Gas, 2001, 3(6): 81-89.
[3]杨承志,岳清山,沈平平.混相驱提高石油采收率[M].北京:石油工业出版社,1991.
YANG Chengzhi, YUE Qingshan, SHEN Pingping. Miscible flooding to enhance oil recovery[M]. Beijing: Oil Industry Press, 1991.
[4]黄孝特.碳酸盐岩裂缝—溶洞型油气藏开发技术探讨[J].石油实验地质,2002,24(5):446-451.
HUANG Xiaote. Discussion for development of technology cavernous carbonate reservoir[J]. Petroleum Geology & Experiment, 2002, 24(5): 446-451.
[5]刘文斌.塔河油田四区奥陶系油藏定容性储渗体注水替油技术[J].钻采工艺,2007,30(5):30-32.
LIU Wenbing. Water-flooding and replacing oil technology for reservoir and percolation body with constant volume in the Ordovician carbonate reservoir in Tahe Oilfield[J]. Drilling & Production Technology, 2007, 30(5): 30-32.
[6]RIVAS O. Ranking reservoirs for CO2 flooding[R]. SPE 23 641, 1992, 8-11.
[7]MORITIS G. Permian basin operators press CO2 injection programs[J]. Oil and Gas Journal, 1993, 15(4): 19-22.
[8]任玉林,李?龙,黄孝特.塔河油田碳酸盐岩油藏开发技术政策研究[J].油气地质与采收率,2004,11(5):57-59.
REN Yulin, LI Jianglong, HUANG Xiaote. Technology policy research on the development of Tahe carbonate reservoir [J]. Petroleum Geology and Recovery, 2004, 11(5): 57-59.
[1]李士伦,周守信,杜建芬,等.国内外注气提高石油采收率技术回顾与展望[J].油气地质与采收率,2002,9(2):1-5.
LI Shilun, ZHOU Shouxin, DU Jianfen, et al. Retrospect and prospect of technology gas injection at home and abroad to enhance oil recovery[J]. Petroleum Geology and Recovery, 2002, 9(2): 1-5.
[2]CHRISTENSEN J R.水气交替(WAG)注入油田?验回顾[J].吐哈油气,2001,3(6):81-89.
CHRISTENSEN J R. Experience retrospect of water alternating gas (WAG)injection[J]. Tuha Oil & Gas, 2001, 3(6): 81-89.
[3]杨承志,岳清山,沈平平.混相驱提高石油采收率[M].北京:石油工业出版社,1991.
YANG Chengzhi, YUE Qingshan, SHEN Pingping. Miscible flooding to enhance oil recovery[M]. Beijing: Oil Industry Press, 1991.
[4]黄孝特.碳酸盐岩裂缝—溶洞型油气藏开发技术探讨[J].石油实验地质,2002,24(5):446-451.
HUANG Xiaote. Discussion for development of technology cavernous carbonate reservoir[J]. Petroleum Geology & Experiment, 2002, 24(5): 446-451.
[5]刘文斌.塔河油田四区奥陶系油藏定容性储渗体注水替油技术[J].钻采工艺,2007,30(5):30-32.
LIU Wenbing. Water-flooding and replacing oil technology for reservoir and percolation body with constant volume in the Ordovician carbonate reservoir in Tahe Oilfield[J]. Drilling & Production Technology, 2007, 30(5): 30-32.
[6]RIVAS O. Ranking reservoirs for CO2 flooding[R]. SPE 23 641, 1992, 8-11.
[7]MORITIS G. Permian basin operators press CO2 injection programs[J]. Oil and Gas Journal, 1993, 15(4): 19-22.
[8]任玉林,李?龙,黄孝特.塔河油田碳酸盐岩油藏开发技术政策研究[J].油气地质与采收率,2004,11(5):57-59.
REN Yulin, LI Jianglong, HUANG Xiaote. Technology policy research on the development of Tahe carbonate reservoir [J]. Petroleum Geology and Recovery, 2004, 11(5): 57-59. -

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