石油勘探与开发 >

2017 , Vol. 44 >Issue 5: 716 - 726

DOI: https://doi.org/10.11698/PED.2017.05.06

油气勘探

岩溶残丘精细刻画及控储特征分析——以塔里木盆地轮古地区奥陶系风化壳岩溶储集层为例

  • 张云峰 ,
  • 谭飞 ,
  • 屈海洲 ,
  • 钟治奇 ,
  • 刘勇 ,
  • 罗新生 ,
  • 王振宇 ,
  • 渠芳
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  • 1. 西南石油大学地球科学与技术学院,成都 610500;
    2. 中国石油碳酸盐岩储集层重点实验室沉积与成藏分室,成都 610500;
    3. 中国石油塔里木油田公司勘探开发研究院,新疆库尔勒 841000;
    4. 中国石油塔里木油田公司开发事业部,新疆库尔勒 841000
张云峰（1982-）,男,河南鹿邑人,博士,西南石油大学讲师,主要从事碳酸盐岩沉积学、储集层地质学研究。地址：四川省成都市新都区,西南石油大学地球科学与技术学院,邮政编码：610500。E-mail：zhyf@swpu.edu.cn

收稿日期: 2016-11-18

  修回日期: 2017-07-29

  网络出版日期: 2017-09-18

基金资助

国家科技重大专项（2011ZX05004-004）; 国家自然科学基金项目（41472103）; 四川省教育厅科研基金（14ZB0058）

收起

Karst monadnock fine characterization and reservoir control analysis: A case from Ordovician weathering paleokarst reservoirs in Lungu area, Tarim Basin, NW China

  • ZHANG Yunfeng ,
  • TAN Fei ,
  • QU Haizhou ,
  • ZHONG Zhiqi ,
  • LIU Yong ,
  • LUO Xinsheng ,
  • WANG Zhenyu ,
  • QU Fang
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  • 1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
    2. The Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, China;
    3. Research Institute of Exploration and Development, PetroChina Tarim Oilfield Company, Korla 841000, China;
    4. Development Division of PetroChina Tarim Oilfield Company, Korla 841000, China

Received date: 2016-11-18

  Revised date: 2017-07-29

  Online published: 2017-09-18

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摘要

基于塔里木盆地轮古地区奥陶系鹰山组风化壳岩溶古地貌精细刻画,对岩溶残丘规模、数量及控储特征进行了量化研究。首先应用“印模法”及残丘体积计算公式,刻画了各级岩溶微地貌,对岩溶残丘的数量、相对幅度、面积、体积等参数进行定量评价,分析残丘不同部位储集层发育情况。轮古地区风化壳岩溶高差范围约140~160 m,厚度由岩溶高地向斜坡和阶地减小;共识别出各类残丘252个,Ⅰ、Ⅱ类残丘虽数量较少,但总体体积大,为有利的储集层发育区;残丘与现今构造高点重合率高（96.42%）,后期构造运动基本未改变残丘形态,具备良好的成藏条件;岩溶残丘主体部位洞穴型、裂缝孔洞型、孔洞型和裂缝型储集层均有发育,且优质储集层发育厚度较大,各项储集层参数优于残丘翼部,残丘相对幅度与单井产量具正相关性,残丘规模和部位与产量关系密切。图10表2参36

关键词： 塔里木盆地; 轮古地区; 奥陶系; 鹰山组; 风化壳岩溶; 岩溶残丘; 控储特征

本文引用格式

张云峰 , 谭飞 , 屈海洲 , 钟治奇 , 刘勇 , 罗新生 , 王振宇 , 渠芳 . 岩溶残丘精细刻画及控储特征分析——以塔里木盆地轮古地区奥陶系风化壳岩溶储集层为例[J]. 石油勘探与开发, 2017 , 44(5) : 716 -726 . DOI: 10.11698/PED.2017.05.06

Abstract

Based on the fine characterization of weathering crust paleokarst landform of the Ordovician Yingshan Formation in Lungu area, Tarim Basin, the size, number and reservoir controlling characteristics of karst monadnocks have been investigated quantitatively. Impression method and karst monadnock volume formulas were employed to characterize the various levels of karst microtopography, to work out the number, relative relief, area, volume and other parameters of monadnocks, and analyze the reservoir development situation at different parts of monadnock. The results showed that the weathering crust karst reservoirs in Lungu area are 140-160 m in relative altitude, and thinning from karst highland to karst slope and terrace. Two hundred fifty-two karst monadnocks have been identified in the study area. Among them, typeⅠand typeⅡmonadnocks are fewer in number, but larger in bulk volume, and are favorable reservoir development zone. The monadnocks have a high coincidence ratio with current structural high points of 96.42%, and the monadnock morphology has remained basically unchanged during the late tectonic movement, thus “karstification-reservoir-accumulation” configuration has been kept good. In the main part (core) of karst monadnocks, there are cave, vug, fracture-vug, and fracture reservoirs, thicker high quality reservoir, and all reservoir parameters are better than those of karst monadnock wings. It is found that the relative amplitude of karst monadnock is positively correlated with single well productivity, and the scale and position of monadnock are closely related with productivity.

Key words： Tarim Basin; Lungu area; Ordovician; Yingshan Formation; karst monadnock; weathering paleokarst; reservoir control characteristics

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