火山岩定容充注物理模拟实验研究——以松辽盆地徐家围子断陷营城组火山岩为例

张学娟; 荣鹏飞; 卢双舫; 张曦; 郭天然; 王民

doi:10.11781/sysydz201806864

火山岩定容充注物理模拟实验研究——以松辽盆地徐家围子断陷营城组火山岩为例

doi: 10.11781/sysydz201806864

张学娟^1,2,
荣鹏飞¹,
卢双舫^3, ,,
张曦⁴,
郭天然⁵,
王民³

1. 东北石油大学地球科学学院, 黑龙江大庆 163318;
2. 东北石油大学非常规油气成藏与开发省部共建国家重点实验室, 黑龙江大庆 163318;
3. 中国石油大学(华东) 非常规油气与新能源研究院, 山东青岛 266580;
4. 西南油气田分公司工程技术研究院, 成都 610017;
5. 吉林油田分公司油气工程研究院, 吉林松原 138000

基金项目:

国家自然科学基金面上项目“白云岩对陆相湖盆泥页岩层系储层物性和脆性的影响定量研究”（41672113）和东北石油大学培育基金项目“酸性火山岩风化特征研究”（XN2014118）资助。

详细信息

作者简介:
张学娟(1979-),女,博士,副教授,从事储层预测和油气地质综合研究。E-mail:zhangxuejuan_2006@126.com。

通讯作者:
卢双舫(1962-),男,博士,教授,从事油气地质学和地球化学的研究工作。E-mail:lushuangfang@qq.com。

中图分类号: TE135
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出版历程
- 收稿日期: 2018-09-09
- 修回日期: 2018-10-23
- 刊出日期: 2018-11-28

Physical simulation of volumetric charging of volcanic rock: case study of volcanic rock in Yingcheng Formation of Xujiaweizi Fault Depression in Songliao Basin

1. College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China;
2. Accumulation and Development of Unconventional Oil and Gas, State Key Laboratory Cultivation Base Jointly-constructed by Heilongjiang Province and the Ministry of Science and Technology, Northeast Petroleum University, Daqing, Heilongjiang 163318, China;
3. Research Institute of Unconventional Oil & Gas and Renewable Energy, China University of Petroleum(East China), Qingdao, Shandong 266580, China;
4. Engineering Technology Research Institute of Southwest Oil and Gas Field Branch Company, Chengdu, Sichuan 610017, China;
5. Petroleum Production Technology Research Institute of Jilin Oilfield Company, Songyuan, Jilin 138000, China

摘要

摘要: 以松辽盆地徐家围子断陷营城组火山岩全直径取心岩样为实验介质，设计制作耐压可视的实验装置，选择一定的初始充注压力开展定容衰竭气体充注实验。实验结果表明：裂缝型介质需要一定的开启压力及开启时间才具备高效输导能力，而裂缝一旦开启后，即使充注压力低于开启压力，裂缝依然具有输导能力，直到充注压差降为零；孔渗型非均质岩样中，中孔、中渗岩心气体运移路径可表现为明显指状突进式特征，而高孔、高渗型火山岩介质可以明显观察到充注过程中各孔渗单元有规律的幕式周期运移过程。整体上，定容充注压力与衰减时间具有指数关系的衰减特征，气体运移速度随时间具有波浪式起伏降低的幕式特征，且随着充注压力的不断降低，幕式运移路径范围逐渐减小。
- 火山岩 /
- 充注实验 /
- 幕式运移 /
- 输导类型 /
- 徐家围子断陷 /
- 松辽盆地
Abstract: Full-diameter volcanic rock core samples of the Yingcheng Formation in the Xujiaweizi Fault Depression of the Songliao Basin were used in a transparent experimental device with pressure resistance. An initial filling pressure was selected to carry out a constant volume exhaust gas filling experiment. Experimental results showed that the crack-type medium needs a certain opening pressure and opening time to have high-efficiency transport ability, and once the crack is opened, even if the charging pressure is lower than the opening pressure, it still has the ability to transport until the charging pressure difference drops to zero. Among the porosity-permeability-type heterogeneous rock samples, gas migration path can be expressed as a finger plunging feature in medium porosity and permeability core. However, in the high porosity and permeability volcanic rock medium, a regular curtain-type periodic migration process of each pore-permeating unit during the filling process was observed. Overall, the constant volume filling pressure and decay time has an attenuation feature with an exponential relationship, and with the attenuation of filling pressure, natural gas migration speed is accompanied by the curtain characteristics of wave fluctuation. As the filling pressure continuously reduces, the range of curtain transport paths gradually reduces.
- volcanic rocks /
- charge experiment /
- episodic migration /
- transmission type /
- Xujiaweizi Fault Depression /
- Songliao Basin

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