| 神木气田二叠系气藏有利区预测 |
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| 作者姓名： | 周拓 周兆华 谷江瑞 郝玉鸿 王建一 |
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| 作者单位： | 中国石油大学(华东)石油工程学院;中国石油勘探开发研究院廊坊分院;中国石油长庆油田分公司第二采气厂;长江大学地球科学学院 |
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| 基金项目： | 国家“十二五”科技重大专项(2011ZX05013-002) |
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| 摘 要： | 神木气田二叠系储层以低孔、致密为特征,非均质性强,气田开发产能较低、开发难度大.在细分层系的基础上,研究沉积砂体和有效砂体空间展布特征,明确太原组、山西组沉积相类型,以及沉积作用是储层发育的主导因素;综合考虑沉积特征、储层发育程度和试气成果等,明确神木气田的主力层位,以太原组、山2段和山1段为3个单元,进行有利开发区块的优选,优选Ⅰ类有利区块8块,推荐叠合有利区.结果表明:在优选有利区内钻井开发效果好,以苏里格气田标准进行衡量Ⅰ+Ⅱ类井比例达到78%,神木气田分层系、优选有利区的开发思路正确,优选有利区准确,对气田产能建设起到促进作用.
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| 关 键 词： | 神木气田 太原组 山西组 储层 有利区 开发 |
Prediction of favorable areas for Permian gas reservoir in Shenmu gas field |
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| Authors: | ZHOU Tuo ZHOU Zhaohua GU jiangrui HAO Yuhong WANG Jianyi |
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| Institution: | 1.Institute of Petroleum Engineering,China University of petroleum(East China),Qingdao,Shandong266555,China;2.Langfang Branch of Research Institute of Petroleum Exploration and Development,Langfang,Hebei 065007,China;3.Gas Production Plant No.2,PetroChina Changqing Oilfield Company,Yulin,Shanxi 719000,China;4.School of Geosciences,Yangtze University,Wuhan,Hubei 430100,China) |
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| Abstract: | As a result of low porosity and strong heterogeneity of the Permian tight reservoirs in Shenmu gas fields,the production capacity is lower.By subdividing strata,fine analysis of single-layer deposition,reservoir characteristics,clear the sedimentary facies types,spatial distribution characteristics of sedimentary sand and effective sand bodies in Taiyuan Formation and Shanxi Formation.Considering the sedimentary characteristics,degree of reservoir development,and open flow of gas testing,and other factors,we determine the main development zones in Shenmu gas fields,and select out 8Favorable areas of Class I in Taiyuan and Shanxi Formation,and recommend favorable composite areas.In the optimization of the favorable area,drilling development effect is good,to Sulige gas field of the standard of measureⅠ+Ⅱclass well ratio reached 78%.Studies show that for Shenmu gas field,the hierarchical system,optimizing the favorable development idea is correct,optimizing the favorable area is accurate,the construction of a productivity of gas field plays a role in promoting. |
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| Keywords: | Shenmu gas field Taiyuan formation Shanxi formation reservoir favorable area development |
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