海上探井短时试井资料快速解释方法  

A fast interpretation method for short term well test data of offshore exploration wells

作　　者：石俊 SHI Jun(College of Chemistry and Chemical Engineering,Xinjiang University of Science&Technology,Korla,Xinjiang 841000,China)

机构地区：[1]新疆科技学院化学化工学院,新疆库尔勒841000

出　　处：《油气井测试》2022年第4期74-78,共5页Well Testing

摘　　要：为对海上探井短时试井资料进行快速合理解释,判断储层性质,以W探井为例,对快速解释方法进行了分析。作业现场进行短时产能试井分析时,暂不考虑产能修正问题,只给出储层定性结果;作业现场不稳定试井分析时,利用地质资料选择分析模型,并与双对数曲线解释结果进行对比,以加快解释速度、准确判断储层性质。依据该解释方法将W探井测试层定性为高产高渗无污染储层,采用“油藏模型+井储+表皮模型+三边不渗透外边界”模型进行试井解释,解释得出三个断层与W井的距离,与地质构造图结果符合度很高,验证了模型选择和解释结果的准确性。该方法满足海上快速获取解释结果的需要,具有一定的适用性。To quickly and reasonably interpret the short-term well test data of offshore exploration well and judge the reservoir property,this paper takes exploration well W as an example to analyze the fast interpretation method.When the short-term productivity test analysis is carried out in the operation site,the productivity correction problem is not considered temporarily,and only the qualitative results of the reservoir are given;When analyzing the unstable well test data in the operation site,the analysis model is selected by using the geological data and compared with the interpretation results of the double logarithmic curve,so as to speed up the interpretation speed and accurately judge the reservoir properties.According to the interpretation method,the test layer of exploration well W is identified as a high-yield,high permeability and pollution-free reservoir,and the well test interpretation is carried out by using the“reservoir model+well storage+skin model+trilateral impermeable outer boundary”model.The distance between three faults and well W is obtained by interpretation,which is highly consistent with the results of geological structure map and verifies the accuracy of model selection and interpretation results.This method meets the needs of obtaining interpretation results quickly at sea,and has certain applicability.

关 键 词：短时试井 产能试井 不稳定试井 快速评价 断层判断 解释模型 海上油气田 探井 

分 类 号：TE353[石油与天然气工程—油气田开发工程]