星级管理在复杂高含水气田地质工程一体化开发中的应用  

Implementations of star evaluation management model in complex high water-cut gas field during its integrated development of geological engineering

作　　者：刘小波[1,2] 周涌沂[1] 王智[1] 雷涛[1] 王翔[1] 尤启东[1,3] 曹桐生[1] 陈奎[1] 刘韬[1,4] 于耀南 LIU Xiaobo;ZHOU Yongyi;WANG Zhi;LEI Tao;WANG Xiang;YOU Qidong;CAO Tongsheng;CHEN Kui;LIU Tao;YU Yaonan(Sinopec North China Petroleum Bureau,Zhengzhou,Henan 450000,China;Dongsheng Jinggong Petroleum Development Group Stock Co.,Ltd.of Shengli Oilfield,Dongying,Shandong 257100,China;Sinopec Jiangsu Petroleum Bureau,Nanjing,Jiangsu 210003,China;Sinopec Petroleum Exploration and Production Research Institute,Beijing 100000,China)

机构地区：[1]中国石化华北油气分公司油气开发管理部,河南郑州450000 [2]胜利油田东胜精攻石油开发集团股份有限公司,山东东营257100 [3]中国石化江苏石油分公司,江苏南京210003 [4]中国石化石油勘探开发研究院,北京100000

出　　处：《油气藏评价与开发》2021年第3期317-328,共12页Petroleum Reservoir Evaluation and Development

基　　金：国家重点研发计划“增产模式下水合物、游离气采收率评价技术”(2019YFC0312304-4)。

摘　　要：低品位、高含水、高成本等因素制约着鄂尔多斯盆地东胜气田的效益开发,针对以上难点,首次提出了星级管理理念,即以储量价值和投资效益最大化为目标,以地质工程一体化为手段,从勘探、开发、钻井、工程、生产5个维度对井位井网、钻井方式、压裂工艺、生产工艺等进行链条式优化,通过各个板块之间实时/适时反馈,实现从单井到区块再到全气田的全尺度迭代提升,最终以各单井的收益率作为星级评判标准排序实施。在此基础上,依托于智慧气田的建设,应用星级管理成果,将地下到地面进行有机结合,从而实现全气田整个生命周期内更高层次的地质工程一体化,取得以下主要成果:①形成了复杂高含水气藏精细描述方法,气层钻遇率提高20.8%;②建立了“分级约束”井网优化体系,储量动用率提高28%;③创新“井、震、测”一体化井壁稳定、井间协同防漏、小井眼窄间隙固井等技术,钻井周期缩短51%、投资成本降低31%;④采用“大排量、短时间、高砂比”压裂,直井、水平井产量增幅分别达56%和39%;⑤创新“多参数定量识别、两相耦合、泡排+、同井采注”技术组合,含气饱和度动用下限降至45%。“十三五”以来,东胜气田经济效益指标持续向好,形成了可量化、可操作、可评价的地质工程一体化效益开发模式,具备推广价值。Poor reserve quality,high water-cut and high investment cost have become the bottleneck of developing Dongsheng Gas Field located in Ordos Basin.In this way,the star evaluation management model is put forward to enhance its production performance.It is aiming at maximizing reserve value and investment benefits through geology-engineering integration.In the process of its implementation,the well locations,well patterns,drilling,fracturing and production technologies are optimized comprehensively,then the optimizedinformation is employed to improve and instruct future planning,thus the iterative improvement is achieved from single well to the whole gas field.Finally,the internal rate of return is calculated to determine the implementation sequence for each well.On the base of intelligent gas field construction,the above achievements are reinforced by organically combining downhole management with ground coping facilities,then the higher level of integrated development of geological engineering is realized.The following main results have been achieved:①The detailed reservoir description and evaluation methods are formed for complicated high water-cut reservoir,and the gas layer penetrating rate raises by 20.8%.②Hierarchical constraints system for well network optimization is established,and the reserve production rate increases by 28%.③The drilling technology with both borehole stability and leakage prevention being considered is innovated through the combination of logging and seismic technology,and a completion string with slim hole and narrow gap is optimized to cater its demand.After optimization,the drilling cycle is shorten by 51%,and investment cut by 31%.④The“large displacement,short time and high sand ratio”fracturing method is implemented,with the vertical well output increased by 56%,and horizontal well 39%.⑤The“multi-parameter quantitative identification,coupling of nozzle and pipe flow,foam drainage and gas recovery system and production and injection technology in the same well”is com

关 键 词：星级管理 地质工程一体化 高含水气田 难动用储量 压裂 

分 类 号：TE122[石油与天然气工程—油气勘探]