[1]王雪帆,王红岩,赵群. 页岩储层孔隙对威远区块地质储量的影响[J].油气井测试,2020,29(04):8-17.[doi:10.19680/j.cnki.1004-4388.2020.04.002]
　WANG Xuefan,WANG Hongyan,ZHAO Qun. Influence of shale reservoir pores on the geological reserves of Weiyuan block[J].Well Testing,2020,29(04):8-17.[doi:10.19680/j.cnki.1004-4388.2020.04.002]
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 页岩储层孔隙对威远区块地质储量的影响()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
29卷
期数:
2020年04期
页码:
8-17
栏目:
出版日期:
2020-08-25

文章信息/Info

Title:
 Influence of shale reservoir pores on the geological reserves of Weiyuan block
文章编号:
1004-4388(2020)04-0008-10
作者:
 王雪帆1; 2; 王红岩3; 4; 5; 赵群3; 4; 5
 1.中国科学院大学地球科学学院 北京 100049
2.中国科学院渗流流体力学研究所 河北廊坊 065007
3.中国石油勘探开发研究院非常规研究所 北京 100089
4.国家能源页岩气研发（实验）中心 河北廊坊 065007
5.中国石油天然气集团公司非常规油气重点实验室 河北廊坊 065007
Author(s):
 WANG Xuefan1; 2;  WANG Hongyan3; 4; 5;  ZHAO Qun3; 4; 5
 1.School of Earth Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
2.Institute of Seepage Fluid Mechanics, Chinese Academy of Sciences, Langfang, Hebei 065007, China
3.Unconventional Research Institute, RIPED, Beijing 100089, China
4.National Energy Shale Gas Research and Development (Experimental) Center, Langfang, Hebei 065007, China
5.Key Laboratory of Unconventional Oil and Gas, CNPC, Langfang, Hebei 065007, China
关键词:
 ; 威远地区;  五峰-龙马溪组;  页岩气;  孔隙特征;  储层特征;  地质储量;  产能评价;  孔隙度
Keywords:
 ; Weiyuan area;  WufengLongmaxi formation;  shale gas;  pore characteristics;  reservoir characteristics;  geological reserves;  productivity evaluation
分类号:
TE122
DOI:
10.19680/j.cnki.1004-4388.2020.04.002
文献标志码:
A
摘要:
 川南地区五峰-龙马溪组海相页岩储层不同建产区页岩气开发效果差异较大，为准确评价页岩微观储层的差异性对评价井产能的影响，以威远区块为研究重点，采用双束扫描电镜、纳米CT和X全岩衍射分析等方法，选取W1和W2两口评价井对纵向页岩微观孔隙特征进行研究，分析纳米级孔隙分布对页岩气井“甜点段”的控制作用。研究得到威远龙一1亚段4个小层的孔隙度、大孔比例、介孔比例及微孔比例等数据。结果显示，纳米级孔隙发育程度及大孔比例自下而上呈下降趋势，介孔和微孔比例自下而上呈上升趋势。W1、W2井开采目标层位龙一11小层厚度分别为69 m、72 m，W2井高孔隙度、高大孔比例的“双高”储层总厚度高于W1井，评价井试采结果W1井的单井可采储量为2315×104m3/d，W2井的单井可采储量为5078×104m3/d。页岩储层孔隙研究方法对提高气井产能具有重要意义。
Abstract:
 The shale gas development effects of marine facies shale reservoir in different production areas of the WufengLongmaxi formation in the southern Sichuan region are quite different. In order to accurately evaluate the impact of the difference of micropores of shale reservoir on the productivity of the appraisal well, select the Weiyuan block as the research focus, adopt methods such as dualbeam scanning electron microscope, nano CT and X wholerock diffraction analysis, select two appraisal wells W1 and W2 to study the characteristics of longitudinal shale micropores, and analyze the controlling role of nano pore distribution on sweet spot of 〖JP2〗shale gas wells. The research has obtained data on the porosity, macropore ratio, mesopore ratio and micropore ratio of the four sublayers〖JP〗 in the Weiyuan Long一1 submember. The results show that the development degree of nanoscale pores and the ratio of macropores show a decreasing trend from bottom to top, while the ratio of mesopores and micropores shows an increasing trend from bottom to top. The thickness of the Long Long一11 sublayer in the target layer for wells W1 and W2 is 69 m and 72 m, respectively. The total thickness of the “double high” reservoir, namely high porosity and high macropore ratio, in Well W2 is bigger than Well W1. Pilot production of 〖JP2〗appraisal well shows that the singlewell EUR of Well W1 is 2315×104m3/d, and the singlewell EUR of Well W2 is 5078×104m3/d.〖JP〗 The pore research methods of shale reservoirs are of great significance for improving the productivity of gas wells.

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备注/Memo

备注/Memo:

国家科技重大专项项目“四川盆地及周缘页岩气形成富集条件、选区评价技术与应用”（2017ZX05035-004）
 2020-01-03收稿，2020-05-05修回,2020-06-28接受,2020-08-20网络版发表
王雪帆，女，1994年11月出生,中国科学院渗流流体力学研究所地质工程专业硕士研究生在读，主要从事非常规油气勘探开发方面的研究工作。电话：010-83596398，18222005288，Email：wxf1994@petrochina.com.cn。通信地址：河北省廊坊市广阳区万庄镇中石油廊坊分院，邮政编码：065007。
更新日期/Last Update: 2020-09-21