天然气资源开发利用水平调查评估现状与建议——以中国石油天然气集团有限公司为例  

Status of and suggestions on the survey and evaluation of natural gas resource exploitation and utilization level:A case study of China National Petroleum Corporation

作　　者：崔永平 陈京元[2] 季丽丹[3] 郭建林[3] 庚勐[3] CUI Yongping;CHEN Jingyuan;JI Lidan;GUO Jianlin;GENG Meng(PetroChina Exploration&Production Company,Beijing 100007,China;PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan 610051,China;PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China)

机构地区：[1]中国石油勘探与生产分公司 [2]中国石油西南油气田公司 [3]中国石油勘探开发研究院

出　　处：《天然气工业》2021年第3期90-96,共7页Natural Gas Industry

基　　金：国家科技重大专项“复杂天然气藏开发关键技术”(编号:2016ZX05015)。

摘　　要：为了掌握天然气资源开发利用水平的现状、推进油气资源节约与高效利用,以中国石油天然气集团有限公司(以下简称中国石油)为样本开展了相关调查评估工作,梳理了中国石油的天然气业务整体发展形势,分析了其下属12家油田公司的天然气“三率”(采收率、回收率、共伴生资源利用率)指标数据,进而得出评估结果并提出了相关建议。研究结果表明:①中国石油的天然气“三率”指标总体较好;②2016—2019年中国石油的天然气采收率平均为59.02%,五类气藏平均天然气采收率均超过最低标准;③2016—2019年中国石油的天然气回收率平均为98.16%,各油田天然气回收率全部达标;④2016—2019年中国石油的共伴生资源利用率具有差异性,其中凝析油利用率平均为99.92%(全部达标),硫化氢利用率平均为96.21%,2018—2019年中国石油的硫化氢利用率达标,2016—2019年中国石油的二氧化碳利用率平均为66.97%,氦气利用率介于30%~50%。对“三率”指标体系的建议如下:①调整特低渗透气藏为致密气藏,同时增加页岩气、煤层气两种类型;②将不活跃水驱气藏采收率最低标准降低10%,设置为60%,将低渗透气藏采收率最低标准提高10%,设置为40%,将特低渗透气藏(致密气藏)采收率最低标准提高10%,设置为24%;③将天然气回收率定义为商品量与自用气量之和占天然气工业产气量的百分比,更符合现场实际;④由于共伴生资源含量与利用价值不同,不宜“一刀切”追求所有共伴生资源的高利用率,建议取消共伴生资源利用率考核标准;⑤油田公司应该建立常态化、标准化的天然气开发利用水平调查评估制度,并将“三率”指标评估纳入天然气开发年度常规工作。To investigate the current exploitation and utilization level of natural gas resources and promote the saving and efficient utilization of oil and gas resources,this paper takes China National Petroleum Corporation(CNPC)as the sample to carry out the related survey and evaluation activities and analyze the overall development situations of its natural gas business.In addition,the natural gas"three-ratio"(recovery factor,recovery ratio and utilization ratio of syngenetic and associated resources)indexes of its 12 subordinate oilfield companies were analyzed.On this basis,the evaluation results were obtained and the related suggestions were proposed.And the following research results were obtained.First,CNPC's natural gas"three-ratio"indexes are overall better.Second,CNPC's natural gas recovery factor during 2016-2019 averages 59.02%and the average natural gas recovery factor of five types of gas reservoirs exceeds the minimum standard.Third,CNPC's natural gas recovery ratio during 2016-2019 averages 98.16%and the natural gas recovery ratio of each oilfield reaches the standard.Fourth,CNPC'S utilization ratio of syngenetic and associated resources during 2016-2019 is different.The utilization ratio of condensate oil averages 99.92%(up to the standard),the utilization ratio of hydrogen sulfide averages 96.21%,the utilization ratio of carbon dioxide averages 66.97%and that of helium gas ranges from 30%to 50%.CNPC'S utilization ratio of hydrogen sulfide during 2018-2019 reaches the standard.Finally,several suggestions on the"three-ratio"index system were proposed.First,adjust the extra low permeability gas reservoirs into the category of tight gas reservoir and introduce two new types,i.e.,shale gas and coalbed methane.Second,decrease the minimum recovery factor standard of gas reservoirs with inactive water drive by 10%to 60%,increase the minimum recovery factor standard of low permeability gas reservoirs by 10%to 40%,and increase the minimum recovery factor standard of extra low permeability gas reservoirs(tight gas

关 键 词：矿产资源 天然气 采收率 回收率 共伴生资源利用率 开发利用水平 评估指标体系 中国石油天然气集团有限公司 

分 类 号：F426.22[经济管理—产业经济]