川南长宁气田上罗区块宁201-YS108井区页岩气储量评价  

Reserves Evaluation of Shale Gas in Ning201-YS108 Well of Shangluo District of Changning Gas Field in Southern Sichuan Basin

作　　者：范祖峰 郑贵强[1] 连会青[1] 李小明[2] FAN Zufeng;ZHENG Guiqiang;LIAN Huiqing;LI Xiaoming(School of Emergency Technology and Management,North China Institute of Science and Technology;School of Safety Engineering,North China Institute of Science and Technology,Sanhe 101601,China)

机构地区：[1]华北科技学院应急技术与管理学院 [2]华北科技学院安全工程学院,河北三河101601

出　　处：《中国资源综合利用》2024年第6期106-109,共4页China Resources Comprehensive Utilization

摘　　要：四川盆地南部的长宁-威远地区页岩气资源丰富、储层较好,但此前针对上罗区块宁201-YS108井区页岩气储层系统的储量计算和评价较少。以长宁页岩气田上罗区块宁201-YS108井区为研究对象,研究其地层特征、构造特征、沉积相特征和储层特征。经储量参数确定及有效储层划分,并经体积法计算吸附气储量、容积法计算游离气储量,确定了宁201井区新增探明含气面积为91.17 km^(2),YS108井区新增探明含气面积为68.47 km^(2),两井区合计新增页岩气探明储量为1361.80×10^(8)m^(3)。最后,宁201-YS108井区页岩气储量的评价结果显示,宁201-YS108井区五峰组-龙马溪组一段页岩气藏脆性矿物含量高、镜质体含量高、有机碳含量高、渗透率特低、埋藏深度为中深层、可采储量为大型。该区域储量条件除渗透率和孔隙度较低外,矿物和有机碳含量、埋藏条件和可采储量总体较好,页岩气勘探开发潜力较大。The Changning Weiyuan area in the southern Sichuan Basin has abundant shale gas resources and good reservoirs,but there have been relatively few reserve calculations and evaluations of the shale gas reservoir system in the Ning201-YS108 well area of the Shangluo district.Taking the Ning201-YS108 well area in the Shangluo district of the Changning shale gas field as the research object,this study investigates its stratigraphic characteristics,structural characteristics,sedimentary facies characteristics,and reservoir characteristics.After determining the reserve parameters and dividing the effective reservoirs,and calculating the adsorbed gas reserves using the volume method and the free gas reserves using the volume method,it was determined that the newly discovered gas bearing area in the Ning 201 well area was 91.17 km^(2),and the newly discovered gas bearing area in the YS108 well area was 68.47 km^(2).The total newly discovered shale gas reserves in the two well areas were 1361.80×10^(8)m^(3).Finally,the evaluation results of shale gas reserves in the Ning201-YS108 well area show that the shale gas reservoir in the one section of the Wufeng Formation Longmaxi Formation in the Ning201-YS108 well area has high brittle mineral content,high vitrinite content,high organic carbon content,extremely low permeability,burial depth of medium to deep layers,and large recoverable reserves.The reserve conditions in this area are generally good in terms of mineral and organic carbon content,burial conditions,and recoverable reserves,except for low permeability and porosity.There is great potential for shale gas exploration and development.

关 键 词：长宁气田 页岩气 宁201-YS108井 储层特征 储量评价 

分 类 号：TE328[石油与天然气工程—油气田开发工程]