摘要
南海西部琼东南盆地的深水区天然气勘探取得重大突破,发现了我国第一个自营勘探的深水高产大气田——A气田。但在高温高压深水气藏控水方面,仍然面临着中、高见水风险井所占比例大、控水难度大等问题。为了降低、边底水锥进速度、延长无水采气期的目的,开展了室内物理模拟研究。比较了6组控水技术方案,最终提出一套基于变密度筛管+覆膜砾石充填堵水+间歇采气能交叉复合控水工艺,采收率高达60.4%。结合数值模拟技术手段,预测4H井区在合理采气速度为每年采出地质储量3%、且采气间歇期为2个月时,该井累产水量合理,累产气量达到最高。研究成果可推广应用于本区深水气田群的高效开发,并为国内同类超深水气藏开发提供借鉴。
A deep-water and high-yield gas field named as“gas field A”in the west of the South China Sea has been discovered,but many problems are remained such as the large proportion of Wells with high water risk and great difficulty in water control.In the indoor experiment,total of six groups of water control technology solutions are studied.A scheme is finally proposed,which is based on a set of variable density screen,the effect of gravel filling water plugging,and intermittent water control technology.The ultimate recovery is as high as 60.4%.Combined with numerical simulation technology,it is predicted for the 4H well block that reasonable gas recovery rate is 3%of the annual geological reserves and intermittent period is 2 months.This research may promote efficient development of deep-water gas fields in this area.
作者
李占东
赵佳彬
李中
孟文波
刘义坤
邰刘龙
LI Zhandong;ZHAO Jiabin;LI Zhong;MENG Wenbo;LIU Yikun;TAI Liulong(College of Petroleum Engineering Institute,Northeast Petroleum University,Daqing 163318,China;Heilongjiang Key Laboratory of Gas Hydrate Efficient Development,Daqing 163318,China;Zhanjiang Branch of CNOOC Limited,Zhanjiang 524057,China;Tuochuang scientific instrument co.LTD of Jiangsu,Nantong 226600,China)
出处
《中国造船》
EI
CSCD
北大核心
2019年第4期229-236,共8页
Shipbuilding of China
基金
黑龙江省教育厅科技项目(TSTAU-R2018018)
黑龙江省高校直属校培育基金(2017PYZL-02)。
关键词
南海油田
控水工艺
深水气藏
数值模拟
提高采收率
Nanhai oilfield
water control technology
deep-water gas reservoir
numerical simulation
作者简介
李占东,男,1979年生,博士。主要从事海洋油气工程教学与研究;赵佳彬,男,1997年生,硕士。主要从事海洋油气工程研究;通信作者:李中,男,1972年生,教授级高工。主要从事海洋钻完井科研研究工作;孟文波,男,1983年生,高工。主要从事海洋钻完井科研研究工作;刘义坤,男,1963年生,教授。主要从事油气田开发工程研究;邰刘龙,男,1985年生,学士,工程师。主要从事油田开发设备研究。
