基于气测衍生参数的储层含气性评价方法探讨  

Discussion on reservoir gas bearing property evaluation method based on gas logging derived parameters

作　　者：滕飞启[1,2] 衣德强[2,3] 王嘉鑫 吴明松[1,2] 贾连超[4] 李永胜[1,2] TENG Feiqi;YI Deqiang;WANG Jiaxin;WU Mingsong;JIA Lianchao;LI Yongsheng(Exploration and Development Research Institute of PetroChina Changqing Oilfield Company,Xi'an,Shaanxi 710018,China;National Engineering Laboratory for Exploration and Development of Low-Permeability Oil&Gas Fields,Xi'an,Shaanxi 710018,China;Oil and Gas Technology Research Institute of PetroChina Changqing Oilfield Company,Xi'an,Shaanxi 710018,China;No.2 Gas Production Plant of PetroChina Changqing Oilfield Company,Yulin,Shaanxi 719000,China)

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,陕西省西安市710018 [2]低渗透油气田勘探开发国家工程实验室 [3]中国石油长庆油田分公司油气工艺研究院 [4]中国石油长庆油田分公司第二采气厂

出　　处：《录井工程》2022年第2期42-45,共4页Mud Logging Engineering

基　　金：中国石油天然气股份公司风险勘探测井技术支持课题“鄂尔多斯盆地风险勘探测井采集与评价技术”(编号:2021-39)。

摘　　要：气测录井评价天然气井影响因素多,在解释过程中多用于纵向对比,在横向对比上具有一定局限性,而且多以定性的方式进行解释,影响油气层评价的准确性,不能真实反映储层含气特征。为此,充分利用现场气测数据,根据气测相对峰面积、基值抬升值、储层有效厚度、气测显示厚度构建气测函数,并用于鄂尔多斯盆地东部孔隙性储层和缝洞性储层评价,与试气结果吻合度较好。该方法为录井解释评价提供了一种新的解释途径,能切实提高录井解释符合率,具有一定的推广价值和应用前景。There are many influencing factors in gas logging evaluation of natural gas wells,so it is mostly used for vertical comparison in the interpretation process,which has certain limitations in horizontal comparison.Moreover,gas logging interpretation is mostly conducted in a qualitative way,which affects the accuracy of hydrocarbon reservoir evaluation and cannot truly reflect the gas bearing characteristics of reservoirs.Therefore,based on gas logging relative peak area,increment of base value,reservoir effective thickness and the thickness of gas logging shows,gas logging function was constructed by making full use of field gas logging data,which is used to evaluate porous and fractured-vuggy reservoirs in the eastern Ordos Basin,the evaluation results accord well with the gas testing results.This method provides a new interpretation way for mud logging interpretation and evaluation,which can effectively improve the coincidence rate of mud logging interpretation,and has certain popularizing value and application prospects.

关 键 词：气测录井 储层评价 峰基比 含气性 影响因素 横向对比 

分 类 号：TE132.1[石油与天然气工程—油气勘探]