延安气田志丹区域马五_(1+2)亚段储层流动单元划分  

Reservoir flow unit division of Ma 5_(1+2) submember in Zhidan area ofYan’an gas field

作　　者：胡雷雷 谭云龙[1] 朱宏博 乔莲莲[1] HU Leilei;TAN Yunlong;ZHU Hongbo;QIAO Lianlian(Gas Field Company,Shaanxi Yanchang Petroleum(Group)Co.Ltd.,Yan’an 716000,China)

机构地区：[1]陕西延长石油(集团)有限责任公司气田公司,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2024年第3期48-53,共6页Journal of Yan'an University：Natural Science Edition

摘　　要：为稳住产能,需要明确马五_(1+2)亚段储层流动单元,为井位的加密调整提供基础。通过对研究区不同古地貌单元的单井气组分数据开展聚类分析,根据气组分相似程度划分流动单元,同时利用历史生产数据现代产量递减分析方法明确气井泄气半径。结果表明,研究区11个古地貌地质单元划分为45个流动单元,气组分划分的储层流动单元具有预知性,马五_(1+2)亚段平均单井泄气半径为420 m,各流动单元目前仅部分气井存在井间干扰,同一流动单元内气井泄气半径未重合区域作为后续加密部署区域,为气田稳产提供基础。In order to stabilize the production capacity,it is necessary to define the reservoir flow unit of the Ma 5_(1+2)submember,which provides the basis for the adjustment of well location.According to the similarity degree of gas components,the flow units are divided according to the cluster analysis of gas component data of different paleogeomorphic units in the study area.At the same time,the gas well deflating radius is determined by using the modern production decline analysis method of historical production data.The results show that the 11 palaeogeomorphic geological units in the study area are divided into 45 flow units,and the reservoir flow units divided by gas components are predictable.The average single well drainage radius of the Ma 5_(1+2)submember is 420 m.At present,only some gas Wells in each flow unit have inter-well interference,and the area where the gas well drainage radius does not coincide in the same flow unit is used as the subsequent infusing deployment area.It provides the basis for stable production of gas field.

关 键 词：延安气田 志丹区域 马五_(1+2)亚段 聚类分析 流动单元 

分 类 号：TE122[石油与天然气工程—油气勘探]