页岩气铂金箱体录井响应特征及其在川南水平井随钻解释中的应用  

Mud logging response characteristics of shale gas platinum box and its application in horizontal well interpretation while drilling in Southern Sichuan

作　　者：刘达贵 杨琳 牟兴羽 莫倩雯 安虹伊 唐锐峰 LIU Dagui;YANG Lin;MOU Xingyu;MO Qianwen;AN Hongyi;TANG Ruifeng(Research Institute of Geological Exploration and Development,CNPC Chuanqing Drilling Engineering Co.,Ltd.,Chengdu,Sichuan 610051,China;Exploration Division of PetroChina Southwest Oil&Gas Field Company,Chengdu,Sichuan 610051,China)

机构地区：[1]中国石油川庆钻探工程有限公司地质勘探开发研究院 [2]中国石油西南油气田分公司勘探事业部

出　　处：《录井工程》2022年第3期78-83,共6页Mud Logging Engineering

基　　金：中国石油西南油气田分公司2021年综合研究项目“高密度钻井液条件下的录井解释技术研究”(编号:2021-N/G-59491)。

摘　　要：为了达到随钻判别铂金箱体的目的,以四川盆地黄瓜山构造龙马溪组为研究对象,利用气测参数、特殊录井数据与测井数据开展相关性研究,从页岩气铂金箱体录井响应特征诸参数中确认岩屑TOC、岩屑硅元素含量、岩屑钙元素含量及龙马溪组纵向位置4个录井响应特征明显的参数,钻进时依据这4个参数并结合其余录井响应特征可实现综合判别铂金箱体。研究表明:气测数据、自然伽马能谱录井数据及X射线荧光(XRF)元素录井数据与钻后测井解释数据的铂金箱体参数相关性较高;应用气测录井、自然伽马能谱录井及XRF元素录井等模型所确定的H 202井区铂金箱体录井响应特征,能够达到随钻判别铂金箱体的目的。将研究成果应用于该井区3口水平井,页岩气铂金箱体录井解释平均符合率达95.9%,说明铂金箱体录井响应特征具有实用性。In order to solve the problem of discriminating shale gas platinum box while drilling, the Longmaxi Formation of Huangguashan structure in Sichuan Basin was taken as the research object, and the correlation study was carried out by using gas logging parameters, special mud logging data and logging data. From the multiple mud logging response characteristic parameters of shale gas platinum box, four parameters with obvious mud logging response characteristics, namely, cuttings TOC, cuttings silicon content, cuttings calcium content and the longitudinal position of Longmaxi Formation, are confirmed. The platinum box can be comprehensively discriminated according to these four parameters and other mud logging response characteristics during drilling. The research shows that the correlation coefficient between the platinum box parameters in gas logging data, natural gamma ray spectrum logging data and XRF element logging data and those in post drilling logging interpretation data is high. The response characteristics of the platinum box mud logging in H202 well area determined by gas logging, natural gamma ray spectrum logging and XRF element logging models can achieve the purpose of discriminating platinum box while drilling. The results of this study are applied to three horizontal wells in this area, and the average coincidence rate of platinum box mud logging interpretation is up to 95.9%, indicating that the response characteristics of platinum box mud logging are practical.

关 键 词：页岩气 铂金箱体 相关性 气测录井 自然伽马能谱 元素录井 响应特征 

分 类 号：TE132.1[石油与天然气工程—油气勘探]