第38参第5期 2016年9月
石油钻采工艺
OIL DRILLING &PRODUCTION TECHNOLOGY
文章编号：10007393(2016)05067806
DOI: 10.13639/j.odpt.2016.05.025
考虑渗吸和驱替的致密油藏体积改造
实验及多尺度模拟李师1.2丁云宏2孟迪卢拥军’许江文4
1.中国石油勘探开发研究院；2.中国石油勘深开发研究院廊坊分院；3.西南石油大学地球科学与技术学统
4.中国石油新澄油公司工程技术研究院
Vol. 38 No. 5 Sept. 2016
引用格式：李帅，丁云宏，盖迪，户拥军，许江文，考虑渗吸和驱替的致密油藏体积改造实验及多尺度模拟「J」石油钻采工艺,2016,38(5):678-683
揭要：矿场试验表明，压累后不立即放喷，依靠期并过程的驱替和渗吸可置换小孔陈内的原油，提高原油采出程度。为探索该过程机理，进行了实验和模拟研完。首先，常压渗吸实验，模拟裂缝壁面在驱替压差和毛管力共同作用下的渗吸行为，无固次时间中加入驱替项（△p),对实验结果进行归一化处理；其次，建立基于CT担描的孔陈尺度模型，通过致密岩心采收率拟合，
结果表明：带压渗吸采收率明显高于自发渗吸采收率，提高幅度10%~15%；无因次时间中加入驱替项，可对实验结果进行较缝以及渗吸/驱替的划分，可准确反映开采初期含水率变化，
关键词：致密油藏；体积改造；渗吸；驱替；多尺度模拟
中图分类号：TE348
文献标识码：A
Volumetric reconstruction experiments and multi-scale simulation of tight oil reservoir with
considerationsofimbibitionanddisplacement LI Shuai', DING Yunhong, MENG D, LU Yongjun′, XU Jjiangwen
1. Research Insfiftute of'Pefrolewm Exploration and Developmenr, CNPC, Beijing 100083, China:
2. Lang/ang Branch of' Research Institute, Petrolem Explonation and Developmert, CNPC, Lang/ang Hebei 065007, China;
3. School of Geoscience and Technofogy, Southwest Pefroleum University, Chengdau, Sichuan 610500, China
4. Engineering Technology Research Instifute, PetroChina Xinjiang Oifield Compay, Kanamay, Xinjiang 834000, Ching
Citation: LI Shuai, DING Yunhong, MENG Di, LU Yongjun, XU Jiangwen. Volumetric reconstruction experiments and multi-scale simulation of tight oil reservoir with consideration of imbibition and displacement [J] . Oil Drilling & Production Technology, 2016, 38(5): 678-683.
Abstract: TField experiences show, before prompt blowout after fracturing, soaking process can proceed to sweep the crude oil in minor pores through displacement and imbibition to enhance oil recovery. Tests and simulation have been conducted to analyze the mechanism in these processes: First of all, pressurized imbibition tests were conducted to simulate imbibition of fracture sidewalls under joint effects of differential displacement pressures and capillary force by adding displacement (Ap) in the dimensionless time. Relevant test results were processed through normalization; Secondly, models on pore scale were constructed based on CT scanning. By fitting
基金项目：国家科技重大专项“大型油气田及煤层气开发"（端号：2016ZX05023)。
第一作者：李师（1987-)，中国石油勘探开发研究统在块博士，研究方向为储层改造与油赢数值模报。通试地址：(065007)河北省序坊市
万庄44号信箱。E-mail: ls_cupb@163.com
通讯作者：丁云宏（1962-),教投，博士生导师，从事储层改造研究与管理工作。电话；010-69213017。E-mail:dyhong@petrochina.com.cn 万方数据