鄂尔多斯盆地大牛地气田致密低渗储层评价与开发对策

doi:10.11743/ogg20120115

摘要/Abstract

摘要：

鄂尔多斯盆地大牛地气田为典型致密低渗气田,具有低渗、低压、低产的特点,经济有效开发难度大。针对气田不同层段储层开展了储集岩相、岩石学、物性、孔隙结构、含气性等特征研究,在此基础上划分出四大类六小类储层,其中Ⅰ类为高产型储层,Ⅱ类为中产型储层,Ⅲ类为低产型储层,Ⅳ类为非储层。根据不同储层类型及其空间分布的特点,采取了不同的开发策略,Ⅰ类储层物性好、厚度大、单层产量高,采用直井单层开采;Ⅱ类储层物性中等、厚度小、单层产量较低,选择发育两层以上叠合区,采用直井多层合采;对以单层发育的Ⅱ类和Ⅲ类储层,采用水平井分段压裂进行开采。通过不同的开发对策,有效提高了单井产量,实现致密低渗气田的经济开发,目前气田已建成天然气年产能25×10⁸ m³。

关键词: 致密低渗储层, 储层评价, 开发对策, 上古生界, 大牛地气田, 鄂尔多斯盆地

Abstract:

Daniudi gas field in Ordos Basin is typical tight sand gas reservoirs with low permeability,low pressure and low production rate.It has been a challenge to develop this kind of gas field economically.This paper cove- rs lithofacies,lithology,petrophysical property,pore structure and gas bearing potential of different formations.On this basis,four types of reservoirs have been identified.In terms of production rate,TypeⅠis the highest,followed by Type Ⅱand then Type Ⅲ,while Type Ⅳ has no productivity.According to the types and distribution of reservoirs,different development strategies have been adopted.Single layer production through vertical well fits TypeⅠ,whose porosity and permeability are better,net pay is thicker and production rate is higher.Commingled system through vertical well for overlapped layers suits Type Ⅱ,whose porosity and permeability are moderate,net pay is thinner and production rate of single layer is lower.Staged fracturing through horizontal well matches both Type Ⅱand Type Ⅲ with only one widely distributing layer.Applying different development strategies to different types of reservoirs,we has succeeded in improving the individual-well production rate and achieving economical development of this gas field.Annual production capacity of 25×10⁸ m³ has been built up there.

Key words: tight sand reservoir with low permeability, reservoir evaluation, development strategy, Upper Palaeozoic, Daniudi gas field, Ordos Basin

中图分类号:

TE112.3

侯瑞云,刘忠群. 鄂尔多斯盆地大牛地气田致密低渗储层评价与开发对策[J]. 石油与天然气地质, 2012, 33(1): 118-128. doi: 10.11743/ogg20120115 Hou Ruiyun,Liu Zhongqun. Resevoir evaluation and development strategies of Daniudi tight sand gas field in the Ordos Basin[J]. Oil & Gas Geology, 2012, 33(1): 118-128. doi: 10.11743/ogg20120115

参考文献

[1] 郝蜀民,惠宽洋,李良.鄂尔多斯盆地大牛地大型低渗气田成藏特征及其勘探开发技术[J].石油与天然气地质,2007,28(6):762-768. Hao Shumin,Hui Kuanyang,Li Liang.Reservoir characteristics of large gasfield with low permeability and exploration and development technology of Daniudi gasfield in Ordos Basin[J].Oil & Gas Geology,2007,28(6):762-768. [2] 郝蜀民.鄂尔多斯盆地油气勘探的回顾与思考[J].天然气工业,2001,21(增刊):1-4. Hao Shumin.Retrospect and consideration of oil and gas exploration in Ordos Basin[J].Nature Gas Industry,2001,21(S):1-4. [3] 赵军,王淼,闫爽,等.自然电位测井在低阻油气层识别中的应用——以塔里木盆地吉拉克地区三叠系低阻油气层为例[J].石油与天然气地质,2011,32(2):245-250. Zhao Jun,Wang Miao,Yan Shuang,et al.Application of spontaneous potential logging to identification of low resistivity reservoir-an example from Triassic low resistivity reservoir in Jilake,Tarim Basin[J].Oil & Gas Geology,2011,32(2):245-250. [4] 高青松,刘忠群,郭耀华.塔巴庙区块下石盒子组盒一段沉积相分析[J].天然气工业,2001,21(增刊):27-29. Gao Qingsong,Liu Zhongqun,Guo Yaohua.Sedimentary facies analysis of the 1^st member,Xiashihezi Formation,Tabamiao Block[J].Gas Industry,2001(S),21:27-29. [5] 张广权,陈舒薇,郭书元.鄂尔多斯地区东北部大牛地气田山西组沉积相[J].石油与天然气地质,2011,32(3):338-396,403. Zhang Guangquan,Chen Shuwei,Guo Shuyuan.Sedimentary facies of Shanxi Formation in Daniudi gas field,northeastern Ordos[J].Oil & Gas Geology,2011,32(3):338-396,403. [6] 罗东明,陈舒薇,张广权.大牛地气田上古生界沉积相与天然气富集规律的再认识[J].石油与天然气地质,2011,32(3):368-374. Luo Dongming,Chen Shuwei,Zhang Guangquan.New understandings of the Upper Paleozoic sedimentary facies and gas accumulation rules in Daniudi gas field[J].Oil & Gas Geology,2011,32(3):368-374. [7] 刘忠群,陈俊亮,杨超华.大牛地复式气田基本地质特征//周玉琦.复杂油气田勘探开发技术新进展.北京:石油工业出版社,2003:20-28. Liu Zhongqun,Chen Junliang,Yang Chaohua.Fundamental geological characteristics of Daniudi complex gasfield//Zhou Yuqi.New advance in complicated oil and gasfield exploration and development.Beijing:Petroleum Industry Press,2003:20-28. [8] 刘忠群,高青松,张健.大牛地气田山西组储层孔隙结构特征[J].天然气工业,2001,21(增刊):53-55. Liu Zhongqun,Gao Qingsong,Zhang Jian.Pore texture characteristics of Shanxi Formation of Daniudi gasfield[J].Nature gas Industry,2001,21(S):53-55. [9] 李良,袁志详,惠宽洋,等.鄂尔多斯盆地北部上古生界天然气聚集规律[J].石油与天然气地质,2000,21(3):268-271,282. Li Liang,Yuan Zhixiang,Hui Kuanyang,et al.Gas accumulation rules in Upper Palaeozoic of northern Ordos Basin[J].Oil & Gas Geology,2000,21(3):268-271,282. [10] 李仲东,郝蜀民,李良,等.鄂尔多斯盆地上古生界压力封存箱与天然气的富集规律[J].石油与天然气地质,2007,28(4),466-472 Ii Zhongdong,Hao shumin,Li Liang,et al.Pressure storage box and gas accumulation rules in Upper Palaeozoic in Ordos Basin[J].Oil & Gas Geology,2007,28(4):466-472. [11] 叶成林,王国勇,何凯,等.苏里格气田储层宏观非均质性——以苏53区块石盒子组8段和山西组1段为例[J].石油与天然气地质,2011,32(2):236-244. Ye Chenglin,Wang Guoyong,He Kai,et al.Macro heterogeneity of reservoir in Sulige Gasfield-a case study of the 8^th member of the Shihezi Formation and the 1^st member of the Shanxi Formation in the Su53 Block[J].Oil & Gas Geology,2009,30(2):236-244. [12] 李道品.低渗透砂岩油田开发[M].北京:石油工业出版社,1997:9. Li Daopin.Oilfield development with low permeability sandstone[M].Beijing:Petroleum Industry Press,1997:9.

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