Microscopic pore structure characteristics of Chang 81 reservoir in Huaqing area

  • HAN Guangming ,
  • ZHOU Jiaxiong ,
  • PEI Jianxiang ,
  • WANG Lifeng
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  • 1. State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069; 2. Department of Geology, Northwest University, Xi’an 710069, China; 3. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710021, China

Online published: 2012-08-20

Abstract

Based on investigation of cast slices,high pressure mercury injection,nuclear magnetic resonance and constant speed mercury injection,this paper studied the microscopic pore structure and microscopic pore fluid characteristics of Chang 81 reservoir in Huaqing area. The result shows that the microscopic pore structure types of Chang 81 reservoir are complex, among which intergranular pore-dissolved pore combination type is perfect,with better connectivity,pore throat radius is larger,and the movable fluid saturation is higher. And this pore combination type is the advantage channel for fluid filtration. Pore throat type,pore throat connectivity,pore throat size and claymineral contents together affect the pore fluid occurrence and flowability. The pore throat size plays a main role,especially the larger throat has an obvious advantage in the improvement of seepage ability.

Cite this article

HAN Guangming , ZHOU Jiaxiong , PEI Jianxiang , WANG Lifeng . Microscopic pore structure characteristics of Chang 81 reservoir in Huaqing area[J]. Lithologic Reservoirs, 2012 , 24(4) : 19 -23 . DOI: 10.3969/j.issn.1673-8926.2012.04.004

References

[1] 王文乐,张春生,杨文龙,等.鄂尔多斯盆地华庆地区长8 油层沉积微相类型及其主要特征研究[J].长江大学学报:自然科学版,2011,8(9):24-27.
[2] 李玲玲,张兴勇.鄂尔多斯盆地华庆地区长8 油层组沉积相研究[J].石油天然气学报(江汉石油学院学报),2011,33(6):170-174.
[3] 武富礼,李文厚,李玉宏,等.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J].古地理学报,2004,6(3):307-314.
[4] 潘静文,文志刚,刁帆,等.西峰油田庄36 井区长81储层特征及评价[J].岩性油气藏,2012,24(1):40-45.
[5] 李彦婧,高潮,邓杰,等.东—韩地区延长组长2 油层组储层孔隙结构特征[J].岩性油气藏,2012,24(1):52-56.
[6] 冯文立,黄思静,黄培培,等.鄂尔多斯盆地东北部太原组砂岩储层特征[J].岩性油气藏,2009,21(1):89-93.
[7] 汪洋,王桂成,王羽君,等.鄂尔多斯盆地郑庄油区延长组长6油层组储层特征[J].岩性油气藏,2010,22(3):48-52.
[8] 郑艳荣,屈红军,冯杨伟,等.安塞油田H 区长6 油层组储层微观孔隙结构特征[J].岩性油气藏,2011,23(5):28-32.
[9] 张满郎,李熙喆,谷江锐,等.鄂尔多斯盆地中东部山2 段储层精细评价[J].岩性油气藏,2010,22(3):71-77.
[10] 于波.吴起、定边地区上三叠统延长组长7—长9 储层特征研究[J].岩性油气藏,2011,23(5):16-20.
[11] 赵澄林,胡爱梅,陈碧珏,等.中华人民共和国石油天然气行业标准:SY/T6285-1997 油气储层评价方法[S].北京:石油工业出版社,1998:16.
[12] 丁晓琪,张哨楠,葛鹏莉,等.鄂尔多斯盆地东南部延长组储层成岩体系研究[J].沉积学报,2011,29(1):97-104.
[13] 兰叶芳,黄思静,吕杰.储层砂岩中自生绿泥石对孔隙结构的影响———来自鄂尔多斯盆地上三叠统延长组的研究结果[J].地质通报,2011,30(1):134-140.
[14] 刘堂宴,王绍民,傅容珊,等.核磁共振谱的岩石孔喉结构分析[J].石油地球物理勘探,2003,38(3):328-333.
[15] 王为民,郭和坤,叶朝辉.利用核磁共振可动流体评价低渗透油田开发潜力[J].石油学报,2001,22(6):40-44.
[16] 高辉,解伟,杨建鹏,等.基于恒速压汞技术的特低—超低渗砂岩储层微观孔喉特征[J].石油实验地质,2011,33(2):206-212.
[17] 解伟,张创,孙卫,等.恒速压汞技术在长2 储层孔隙结构研究中的应用[J].断块油气田,2011,18(5):549-551.
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