| 广安气田产能特征及其控制因素研究 |
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| 引用本文： | 兰朝利,王金秀,何顺利,杨明慧,张君峰.广安气田产能特征及其控制因素研究[J].地质科学,2010,45(1):307-316. |
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| 作者姓名： | 兰朝利 王金秀 何顺利 杨明慧 张君峰 |
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| 作者单位： | 1.中国石油大学石油工程教育部重点实验室北京 102249； 2.中国石油大学油气资源与探测国家重点实验室 北京 102249； 3.中国石油大学资源与信息学院北京 102249； 4.中国石油天然气股份有限公司北京 100001 |
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| 基金项目： | 国家科技重大专项，国家"973"重点基础研究规划项目，中国石油天然气集团公司石油科技中青年创新基金项目 |
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| 摘 要： | 广安气田勘探开发层位为上三叠统须家河组须六段和须四段。储层砂体为三角洲分流河道、水下分流河道和河口坝沉积,为典型低孔、低渗孔隙型储层。气藏分布受构造和或岩性控制,发育了构造气藏、构造—岩性气藏和岩性气藏。为指导气田开发井位部署与合理配产,根据试采资料研究了气井产能特征,并把气井产能划分为Ⅰ、Ⅱ、Ⅲ和Ⅳ4大类7亚类,各类气井产能差异大,产水量差异也大,其中Ⅰ类、Ⅱ_1亚类和Ⅲ_1亚类气井产能较好或较稳定。通过分析控制广安气田气井产能的因素,认识到储层沉积微相、单井动储量、构造位置、产水量与工艺措施对气井产能有重要影响。在水动力强的分流河道、水下分流河道和河口坝沉积相带中,单井控制动储量越大,构造位置越高,产水量越小,压裂和储层保护措施相对合理,气井往往具有较高产能。
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| 关 键 词： | 气井产能 产能控制因素 广安气田 须家河组 |
| 收稿时间： | 2009-07-08 |
| 修稿时间： | 2009-11-16 |
Well production characteristics and control factor analysis of Guang'an gas field in Sichuan Basin,southwestern China |
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| Lan Chaoli,Wang Jinxiu,He Shunli,Yang Minghui,Zhang Junfeng.Well production characteristics and control factor analysis of Guang'an gas field in Sichuan Basin,southwestern China[J].Chinese Journal of Geology,2010,45(1):307-316. |
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| Authors: | Lan Chaoli Wang Jinxiu He Shunli Yang Minghui Zhang Junfeng |
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| Institution: | 1.MOE Key Laboratory of Petroleum Engineering in China University of Petroleum|Beijing 102249；
2.State Key Laboratory for Petroleum Resources and Prospecting|China University of Petroleum|Beijing 102249；
3.Faculty of Natural Resources and Information Technology|China University of Petroleum|Beijing 102249；
4.PetroChina Company Limited|Beijing 100001） |
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| Abstract: | The exploitation and development target are the sixth and fourth Members of Upper Triassic Xujiahe Formation in Guang'an gasfield of Sichuan Basin,southwestern China.The reservoir sandstones of these two members are deposits of deltaic distributary channels,underwater distributary channels and mouth bars and have typically low porosity (mainly 6%～12%)and low permeability(mostly 0.1×10~(-3) μm~2～10×10~(-3) μm~2)with rare fractures.The gas reservoir distribution is controlled by structure and/or lithology.Accordingly,the reservoir types include structural,lithological and structural-lithological ones.To offer guidance for next well location and producing capacity of this gas field,production characteristics were investigated based on well test data.The well productivities can be subdivided in four types (Ⅰ,Ⅱ,Ⅲand Ⅳ)and seven subtypes(Ⅱ_1,Ⅱ_2,Ⅲ_1,Ⅲ_2,Ⅲ_3,Ⅳ and Ⅳ_2),and change greatly among these types.Every type has different water production.Of which,type Ⅰ,subtype Ⅱ_1 and Ⅲ_1 have more enough or stable producing capacity.Factors controlling well production were explored.It can be concluded that sedimentary facies,well dynamic reserves,elevations,water productions and technological measures have important impacts on gas well production.When the wells were drilled in the high energetic distributary channel,underwater distributary channel and mouth bar zones,they would achieve higher productivities if they have bigger well dynamic reserves,higher elevations,smaller water production and more proper fracture and protection technologies. |
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| Keywords: | Gas well productivities Production control factors Guang'an gas field Xujiahe Formation |
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