Lithologic Reservoirs >

2012 , Vol. 24 >Issue 2: 117 - 123

DOI: https://doi.org/10.3969/j.issn.1673-8926.2012.02.023

Heterogeneity of sandy conglomerate reservoir and its influence on remaining oil distribution: A case study from Badaowan Formation in the mid-west of block Ⅱ in Karamay Oilfield

  • HU Zhihua ,
  • SHEN Chunsheng ,
  • LIU Zongbin ,
  • YANG Qinghong ,
  • LIU Yujuan ,
  • LI Shuanbao2
Expand
  • 1. PetroChina Research Institute of Petroleum Exploration and Development， Beijing 100083， China； 2. Faculty of Natural Resource & Information Technology， China University of Petroleum， Beijing 102249， China

Online published: 2012-04-20

Fold

Abstract

At present, the voidage-injection imbalance, interlayer interference and in-layer interference leaded by the reservoir heterogeneity are extremely highlighted during the production tail of sandy conglomerate reservoir in the midfan of alluvial fan. Taking the Jurassic Badaowan Formation in mid-west of the block II in Karamay Oilfield as an example, this paper studied the reservoir heterogeneity of alluvial fan sandy conglomerate reservoir. Based on outcrop observation, core description, electrofacies analysis, the single sand body description technique was used to divide the reservoir into 4 types of microfacies-lithofacies single sand body. Combining with the macroscopic and microscopic heterogeneity in different single sand body, the remaining oil were divided into 3 enriched types: Ⅰ-type braided channel gritstone facies, which has mesopore and small throat texture; Ⅱ-type braided channel fine sandstone facies, which has small pore and small throat texture; Ⅲ-type braided channel sandy conglomerate facies, which has small pore and fine throat texture. It is concluded that the type Ⅲ has the best water flooding effect and should be the main object of stabilizing oil production and controllingwater cut, and the type I and Ⅱ , where the properties are relativelyworse and the heterogeneity is stronger, should be the next potential target. Using this method of “recognizing the reservoir heterogeneity and resolving it” as the breakthrough point to analyze the single sand body and the heterogeneity, which can provide better reference for forecasting the distribution of remaining oil in the sandy conglomerate reservoir.

Key words： diagenesis; pore evolution; reservoir characteristics; Dongying Formation; L oilfield in Bohai Bay

Cite this article

HU Zhihua , SHEN Chunsheng , LIU Zongbin , YANG Qinghong , LIU Yujuan , LI Shuanbao2 . Heterogeneity of sandy conglomerate reservoir and its influence on remaining oil distribution: A case study from Badaowan Formation in the mid-west of block Ⅱ in Karamay Oilfield[J]. Lithologic Reservoirs, 2012 , 24(2) : 117 -123 . DOI: 10.3969/j.issn.1673-8926.2012.02.023

References

［1］ 裘怿楠，薛叔浩.油气储层评价技术［M］.北京：石油工业出版社，1994：59-64，290.
［2］ 杨少春，周建林. 胜坨油田二区高含水期三角洲储层非均质特征［J］.中国石油大学学报：自然科学版，2001，25（1）：37-41.
［3］ 邓瑞健.储层平面非均质性对水驱油效果影响的实验研究［J］.大庆石油地质与开发，2002，21（4）：16-19.
［4］ 窦之林，董春梅，林承焰.孤东油田七区中馆4—馆6 砂层组储层非均质性及其对剩余油分布的控制作用［J］. 中国石油大学学报：自然科学版，2002，26（1）：9-15.
［5］ 于翠玲，林承焰.储层非均质性研究进展［J］.油气地质与采收率，2007，14（4）：15-18.
［6］ 岳大力，林承焰，吴胜和，等.储层非均质定量表征方法在礁灰岩油田开发中的应用［J］.石油学报，2004，25（5）：75-79.
［7］ 马世忠，吕桂友，闫百泉，等.河道单砂体“建筑结构控三维非均质模式”研究［J］.地学前缘，2008，15（1）：57-64.
［8］ 宋广寿，高辉，高静乐，等.西峰油田长8 储层微观孔隙结构非均质性与渗流机理实验［J］ .吉林大学学报：地球科学版，2009，39（1）：53-59.
［9］ 唐海发，彭仕宓，蔡圣权，等.湿地扇扇中辫状水道沉积微相-岩石相划分方法［J］.成都理工大学学报：自然科学版，2008，35（1）： 22-27.
［10］ 许长福，刘红现，钱根宝，等.克拉玛依砾岩储集层微观水驱油机理［J］.石油勘探与开发，2011，38（6）：725-732.
［11］ 尹志军，鲁国永，邹翔，等.陆相储层非均质性及其对油藏采收率的影响［J］.石油与天然气地质，2006，27（1）：106-110.
［12］ 高建刚，赵红兵，严科.近岸水下扇沉积特征及储层非均质性研究———以胜坨油田坨 123 断块沙四段为例［J］.油气地质与采收率，2010，17（3）：34-37.
［13］ Zhang Wei，Zhang Jinliang，Xie Jun. Research on reservoir bed heterogeneity，interlayer sand seal layers and controlling factors of 2+3 sands of upper second member，Shahejie Formation，in the west of the Pucheng Oil field［J］. Petroleum Science，2008，（5）：135-144.
［14］ Pranter M J，Ellison A I，Cole R D，et al. Analysis and modeling of intermediate-scale reservoir heterogeneity based on a fluvial pointbar outcrop analog，Williams Fork Formation，Piceance Basin，Colorado［J］. AAPG Bulletin，2007，91（7）：1025-1051.
［15］ Rogers J P. New reservoir model from an old oil field：Garfield conglomerate pool，Pawnee County，Kansas ［J］. AAPG Bulletin，2007，91（10）：1349-1365.
［16］ Jiao Yangquan，Yan Jiaxin，Li Sitian，et al. Architectural units and heterogeneity of channel reservoirs in the Karamay Formation，outcrop area of Karamay oil field，Junggarbasin，northwest China［J］. AAPG Bulletin，2005，89（4）：529-545.
［17］ Miall A D. Reservoir heterogeneity in fluvial sandstone：lessons from outcrop studies［J］. AAPG Bulletin，1988，72（6）：682-697.
［18］ Van de Graaff W J E，Bentley M R，Kortekaas T F M. Quantification of macro-to megascale reservoir heterogeneity：A practical approach based on computer mapping techniques［R］. SPE 25001，1992：391-398.
［19］ Daws J A，Prosser D J. Scalls of permeability heterogeneity within the brent group［J］. Journal of Petroleum Geology，1992，15（4）：397-418.
［20］ 汪立军，陈新军.储层非均质性对剩余油分布的影响［J］.地质科技情报，2003，22（2）：71-73.
［21］ 俞启泰.注水油藏大尺度未波及剩余油的三大富集区［J］.石油学报，2000，21（2）：45-50.
［22］ 王伟锋，林承焰，蔡忠.大港枣园油田枣北孔店组砂岩储层微观非均质性欲改善开发效果分析［J］.地质论评，1993，39（4）：302-306.
［23］ 闵飞琼，王璞珺，于世泉，等.营城组三段及二段岩性岩相和储层物性的精细刻画———基于标准剖面营三 D1 井全取心钻孔资料［J］.吉林大学学报：地球科学版，2007，37（6）：1203-1215.
［24］ 轩玲玲，任利斌，刘锋，等.油田注水前后储层特征变化规律研究———以冀东高尚堡油田沙三段 2＋3 亚段为例［J］.岩性油气藏，2010，22（4）：116-119.
［25］ 王辉，王凤琴.甘谷驿油田共大滩区延长组长6 段非均质模式与油气分布［J］.岩性油气藏，2008，20（2）：48-53.
Options
Outlines

/

〈 〉

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn