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| 利用综合甜点对YDN地区龙马溪组页岩储层进行可压性评价 |
| The comprehensive utilization of sweet Longmaxi shale reservoir in YDN area compressibility evaluation |
| 投稿时间：2017-09-06 修订日期：2017-09-06 |
| DOI： |
| 中文关键词: YDN地区 地质甜点 工程甜点 综合甜点指数 |
| 英文关键词: YDN area Geological dessert Engineering dessert Composite dessert index |
| 基金项目:重庆市国土局资源和房屋管理局科技计划项目(项目编号：KJ-2015046) |
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| 中文摘要: |
| YDN地区页岩致密,储层非均质性极强,优选压裂井段是页岩气开发的重点之一。笔者通过调研文献,依据YDN区块的开发特性,综合地质甜点和工程甜点因素,从评价研究区的含气潜力和易改造潜力出发,从而确定有利的压裂井段。根据区域特征,选定TOC含量、孔隙度、岩石力学参数表征储层的含气性和压裂的难易程度,利用地质甜点指数、工程甜点指数确定龙一11亚段(2395m～2412m)为地质甜点段、3430~3740m井段为工程甜点段。最终依据综合甜点指数得到3430~3730m井段为有利压裂区域,现场试验结果表明该区域产量贡献率最高,压后累计产气4911.6×104m3,压裂效果良好。 |
| 英文摘要: |
| Shale reservoir has the characteristics of tight reservoir and strong heterogeneity, so it needs large volume fracturing to realize its economic benefits. At present, optimizing fractured wells is one of the focuses of shale gas development. The author through the research literature, based on the development status of the YDN block, to the area of the W shale gas as an example, the comprehensive geological and engineering factors dessert dessert, starting from the evaluation of the study area of gas potential and easy transformation potential, so as to determine the favorable fractured wells. The research shows that the content of TOC, porosity, rock mechanics parameters of reservoir gas bearing and fracturing the difficult degree of influence, so we analyze the above factors, the use of geological engineering index index, dessert dessert dessert dessert for geological section and section project. Finally, the favorable fracturing area is found on the basis of the comprehensive composite desserts index. The field test results show that the yield contribution rate is the highest in this region, and the accumulated gas production after fracturing is 4911.6 ×104m3, and the fracturing effect is good. |
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