海上深层块状特稠油SAGD开发三维物理模拟实验研究
|
摘要
针对海上深层特稠油油藏LD油田埋藏深、原油黏度大、地层压力高、油藏模式复杂,国内外无开发先例借鉴的问题,依据相似准则,建立了高温高压填砂模型,采用三维物理模拟实验,开展了不同SAGD热采方式评价研究。结果表明,特稠油油藏采用先期蒸汽吞吐开发后适时转为SAGD开发的热采方式可有效利用蒸汽在低压下体积大、热焓值高的物理特点,能充分发挥SAGD热采优势,最终采收率比在油藏压力下直接采用SAGD开发的方式提高19.8%。
LD oilfield is an extra-heavy oil reservoir, it has some problems such as deep burial, large viscosity, high reservoir pressure and complex reservoir mode and there is no development experience to learn from. Therefore, to solve the problem of thermal recovery mode selection, a high temperature-high pressure sand-packed model was built, and two different steam assisted gravity drainage(SAGD) development methods were studied by 3 D physical simulation experiments. The results indicated that the thermal recover method by steam stimulation development was used first, then by SAGD timely, which could effectively use the characters of large volume at low pressure and high enthalpy value in steam, and take full advantages of SAGD method. And the ultimate recovery rate is higher than that of directly using SAGD development at oil reservoir pressure, and the stimulation thermal recovery rate increased by 19.8%.
LD oilfield is an extra-heavy oil reservoir, it has some problems such as deep burial, large viscosity, high reservoir pressure and complex reservoir mode and there is no development experience to learn from. Therefore, to solve the problem of thermal recovery mode selection, a high temperature-high pressure sand-packed model was built, and two different steam assisted gravity drainage(SAGD) development methods were studied by 3 D physical simulation experiments. The results indicated that the thermal recover method by steam stimulation development was used first, then by SAGD timely, which could effectively use the characters of large volume at low pressure and high enthalpy value in steam, and take full advantages of SAGD method. And the ultimate recovery rate is higher than that of directly using SAGD development at oil reservoir pressure, and the stimulation thermal recovery rate increased by 19.8%.
引文
[1] 霍进,黄伟强,彭通曙,等.浅层特超稠油油藏氮气辅助蒸汽吞吐提高采收率研究与应用[J].新疆石油科技,2007,17(4):17-18.
[2] GAO Y R,LIU S Q,ZHANG Y T,et al.Implementing steam assisted gravity drainage through combination of vertical and horizontal wells in a super-heavy crude reservoir with top-water[C]//SPE Asia Pacific Oil and Gas Conference and Exhibition.Melbourne,Australia:SPE,2002.
[3] 刘义刚,王荣健,卢祥国,等.海上稠油油藏“调驱+热采”提高采收率实验研究[J].石油与天然气化工,2015,44(6):89-95.
[4] 李秀峦,刘昊,罗健,等.非均质油藏双水平井SAGD三维物理模拟.石油学报,2014,35(3):536-542.
[5] 梁发书,李建波,任洪明,等.稠油降黏剂的室内研究[J].石油与天然气化工,2001,30(2):87-88.
[6] 张方礼,刘其成,刘宝良,等.稠油开发实验技术与应用[M].北京:石油工业出版社,2007.
[7] 刘欣颖,胡平.非均质底水油藏水平井三维物理模拟实验[J].石油学报,2011,32(6):1012-1016.
[8] 钟立国,姜宇,马帅,等.海上深层特稠油多元热流体辅助重力泄油物理模拟与数值模拟[J].中国海上油气,2015,27(1):68-73.
[9] 关文龙,吴淑红,蒋有伟,等.高含水油藏转注蒸汽三维物理模拟研究[J].石油学报,2009,30(3):404-408.
[10] 刘东,李云鹏,张风义,等.烟道气辅助蒸汽吞吐油藏适应性研究[J].中国海上油气,2012,24(增刊):62-66.
[11] 曹嫣镔,刘冬青,王善堂,等.胜利油田超稠油油藏蒸汽驱三维物理模拟与应用[J].石油学报,2013,34(4):733-739.
[2] GAO Y R,LIU S Q,ZHANG Y T,et al.Implementing steam assisted gravity drainage through combination of vertical and horizontal wells in a super-heavy crude reservoir with top-water[C]//SPE Asia Pacific Oil and Gas Conference and Exhibition.Melbourne,Australia:SPE,2002.
[3] 刘义刚,王荣健,卢祥国,等.海上稠油油藏“调驱+热采”提高采收率实验研究[J].石油与天然气化工,2015,44(6):89-95.
[4] 李秀峦,刘昊,罗健,等.非均质油藏双水平井SAGD三维物理模拟.石油学报,2014,35(3):536-542.
[5] 梁发书,李建波,任洪明,等.稠油降黏剂的室内研究[J].石油与天然气化工,2001,30(2):87-88.
[6] 张方礼,刘其成,刘宝良,等.稠油开发实验技术与应用[M].北京:石油工业出版社,2007.
[7] 刘欣颖,胡平.非均质底水油藏水平井三维物理模拟实验[J].石油学报,2011,32(6):1012-1016.
[8] 钟立国,姜宇,马帅,等.海上深层特稠油多元热流体辅助重力泄油物理模拟与数值模拟[J].中国海上油气,2015,27(1):68-73.
[9] 关文龙,吴淑红,蒋有伟,等.高含水油藏转注蒸汽三维物理模拟研究[J].石油学报,2009,30(3):404-408.
[10] 刘东,李云鹏,张风义,等.烟道气辅助蒸汽吞吐油藏适应性研究[J].中国海上油气,2012,24(增刊):62-66.
[11] 曹嫣镔,刘冬青,王善堂,等.胜利油田超稠油油藏蒸汽驱三维物理模拟与应用[J].石油学报,2013,34(4):733-739.