[1]张江华.准中1区块侏罗系三工河组低渗透储层储集特征[J].复杂油气藏,2018,(04):17.[doi:10.16181/j.cnki.fzyqc.2018.04.004]
　ZHANG Jianghua.Characteristics of low-permeability reservoir of Sangonghe Formation in Block 1 of central Junggar Basin[J].Complex Hydrocarbon Reservoirs,2018,(04):17.[doi:10.16181/j.cnki.fzyqc.2018.04.004]
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准中1区块侏罗系三工河组低渗透储层储集特征()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2018年04期
页码:
17
栏目:
油气勘探
出版日期:
2018-12-25

文章信息/Info

Title:
Characteristics of low-permeability reservoir of Sangonghe Formation in Block 1 of central Junggar Basin
作者:
张江华
中国石化胜利油田分公司新春采油厂,山东 东营 257000
Author(s):
ZHANG Jianghua
Xinchun Oil Production Company of Shengli Oilfield Company,SINOPEC,Dongying 257000,China
关键词:
低渗透储层 成岩作用 三工河组 准噶尔盆地
Keywords:
low-permeability reservoir;  diagenesis;  Sangonghe Formation;  Junggar Basin
分类号:
TE122
DOI:
10.16181/j.cnki.fzyqc.2018.04.004
文献标志码:
A
摘要:
综合运用物性测试、压汞分析及图像分析等技术手段,对准噶尔盆地中部1区块侏罗系三工河组储层储集物性、储集空间及孔喉结构特征进行了系统研究。结果表明,研究区储层具有中-低孔、低渗-超低渗的特征,且孔渗二者相关性较好。储集空间发育原生孔隙、次生孔隙、混合孔隙及少量微裂缝等,其中原生孔隙相对含量高达80%以上。根据排驱压力、毛管中值压力分布形态可以将研究区储层孔喉结构分为3大类,其中Ⅰ类为原生孔为主的大孔中喉型储层、Ⅱ类为次生孔相对发育的中低孔细喉型储层、Ⅲ类为特低孔及细喉型储层。研究区储层类型及其物性分布受控于沉积作用和成岩作用双重因素。沙窝地地区和莫西庄北部地区的三角洲前缘水下分流河道微相中的弱压实、弱溶解、弱(中)胶结成岩相主控的Ⅰ类孔喉结构储层是研究区的有利储层类型。
Abstract:
The characteristics of reservoir petrophysical property,reservoir space and pore throat structure of J1s reservoir in Block 1 of Junggar Basin was studied synthetically by means of petrophysical property testing, mercury penetration, image analysis and other technical methods. The results showed that the reservoirs in the study area is mainly of mid-low porosity, low permeability and extra-low permeability, and has a good correlation between porosity and permeability.Reservoir space developed primary, secondary and mixed pores and a small number of microcrack. Primary pores are of up to 80% relative content.According to the displacement pressure and the distribution of capillary median pressure, the pore throat structure of the reservoir in the study area can be divided into three types, of which I is the macroporous and medium throat reservoir with primary pores, Ⅱ is the medium-low porous and fine throat reservoir with secondary pores relatively developed, and Ⅲ is the ultra-low porous and fine throat reservoir. The reservoir type and physical property distribution are controlled by the dual factors of sedimentation and diagenesis. Type I pore throat reservoir is favorable reservoir types in the study area, which is controlled by the underwater distributary channel microfacies and weak compaction-weak dissolution-weak(medium)cementation diagenetic facies in Shawodi area and northern Moxizhuang area.

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备注/Memo

备注/Memo:
收稿日期:2018-09-17; 改回日期:2018-10-24。
作者简介:张江华(1977—),工学博士,高级工程师,从事石油勘探生产及科研工作。E-mail:echozjh2000@126.com。
更新日期/Last Update: 2018-11-25