鄂尔多斯盆地致密气勘探开发形势与未来发展展望
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摘要
鄂尔多斯盆地致密气主要分布在上古生界石炭—二叠系,致密气资源量10.37×1012m3,占盆地天然气总资源量的68%,1995年以来先后发现了米脂、乌审旗、大牛地、神木、苏里格5个致密大气田,致密气地质储量3.78×1012m3,目前已进入储量产量快速增长阶段,近5年来储量年均增幅超过5 000×108m3,致密气产量年均增幅30×108m3,建成了以苏里格气田为代表的致密气生产基地,集成创新形成了以全数字地震、优化钻井、储层改造、井下节流、排水采气、数字管理等为核心的致密气勘探开发关键技术,转变发展方式形成了以"标准化设计、模块化建设、数字化管理、市场化运作"为重点的致密气田开发模式,2011年苏里格气田生产致密气137×108m3,成功地向北京、上海、西安、银川、呼和浩特等重点城市供气。综合评价认为:苏里格南部、靖边—高桥、神木—米脂、盆地西南部是近期致密气增储上产的主要地区,预计2015年以前,盆地致密气储量规模将超过4.5×1012m3,致密气产量将达到255×108m3,并持续长时间稳产。
Tight gas of the Ordos Basin is mainly distributed in the Upper Paleozoic Permo-Carboniferous source rocks,tight gas resources reaching 10.37 × 1012 m3,among which natural gas resources occupy 68 %.Since 1995,five large gas fields have been developed and proved in Ordos Basin,Mizhi,Wushenqi,Daniudi,Shenmu and Sulige,in which accumulation reserves of tight gas reached 3.78 × 1012 m3.At present,the field has now entered a stage of rapid growth of reserves production.The average annual increase of reserves is more than 5 000 × 108 m3 in the past five years,and the average annual increase of tight gas production is 30 × 108 m3.A tight gas production base was established,taking Sulige gas field as the representation.Key technologies of tight gas exploration and development were integrated innovated around full digital seismic,optimization of drilling,reservoir reconstruction,downhole choke,draining gas exploitation technology and digital management.The mode of development was changed to form a mode of dense gas field development by focusing on"standardized design,modular construction,digital management,market-oriented operation".In 2011,the production of Sulige gas field reached 137 × 10 8 m3,which has made a contribution to improving the gas supply conditions for key cities such as Beijing,Shanghai,Xi’an,Yinchuan etc.Multiple-discipline comprehensive research shows that the south part of Sulige gas field,Jingbian-Gaoqiao and Shenmu-Mizhi areas are the impartant fields for future exploration of tight gas and increasing reserves and productions.By 2015 as expectation,the accumulated reserves would increase up to totally over 4.5 × 1012 m3 of tight gas and 255 × 108 m3 of tight gas would be produced in Sulige area.
Tight gas of the Ordos Basin is mainly distributed in the Upper Paleozoic Permo-Carboniferous source rocks,tight gas resources reaching 10.37 × 1012 m3,among which natural gas resources occupy 68 %.Since 1995,five large gas fields have been developed and proved in Ordos Basin,Mizhi,Wushenqi,Daniudi,Shenmu and Sulige,in which accumulation reserves of tight gas reached 3.78 × 1012 m3.At present,the field has now entered a stage of rapid growth of reserves production.The average annual increase of reserves is more than 5 000 × 108 m3 in the past five years,and the average annual increase of tight gas production is 30 × 108 m3.A tight gas production base was established,taking Sulige gas field as the representation.Key technologies of tight gas exploration and development were integrated innovated around full digital seismic,optimization of drilling,reservoir reconstruction,downhole choke,draining gas exploitation technology and digital management.The mode of development was changed to form a mode of dense gas field development by focusing on"standardized design,modular construction,digital management,market-oriented operation".In 2011,the production of Sulige gas field reached 137 × 10 8 m3,which has made a contribution to improving the gas supply conditions for key cities such as Beijing,Shanghai,Xi’an,Yinchuan etc.Multiple-discipline comprehensive research shows that the south part of Sulige gas field,Jingbian-Gaoqiao and Shenmu-Mizhi areas are the impartant fields for future exploration of tight gas and increasing reserves and productions.By 2015 as expectation,the accumulated reserves would increase up to totally over 4.5 × 1012 m3 of tight gas and 255 × 108 m3 of tight gas would be produced in Sulige area.
引文
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[14]张明禄,吴正,樊友宏,等.鄂尔多斯盆地低渗透气藏开发技术及开发前景[J].天然气工业,2011,31(7):1-4.
[15]冉新权.长庆油气田开发建设中的工程管理创新[J].中国工程科学,2008,10(12):58-62.
[16]刘祎,杨光,王登海,等.苏里格气田地面系统标准化设计[J].天然气工业,2007,27(12):124-125.
[17]朱天寿,刘祎,周玉英,等.苏里格气田数字化集气站建设管理模式[J].天然气工业,2011,31(2):9-11.
[18]冉新权.苏里格低渗透气田开发技术最新进展[J].天然气工业,2011,31(12):59-62.
[2]胡文瑞,翟光明.鄂尔多斯盆地油气勘探开发的实践与可持续发展[J].中国工程科学,2010,12(5):64-72.
[3]杨华,刘新社,孟培龙.苏里格地区天然气勘探新进展[J].天然气工业,2011,31(2):1-8.
[4]冉新权,何光怀.关键技术突破,集成技术创新实现苏里格气田规模有效开发[J].天然气工业,2007,27(12):1-5.
[5]刘新社,席胜利,付金华,等.鄂尔多斯盆地上古生界天然气生成[J].天然气工业,2000,20(6):19-23.
[6]戴金星,钟宁宁,刘德汉,等.中国煤成大中型气田地质基础和主控因素[M].北京:石油工业出版社,2000.
[7]刘新社,周立发,侯云东.运用流体包裹体研究鄂尔多斯盆地上古生界天然气成藏[J].石油学报,2008,28(6):37-42.
[8]邹才能,陶士振,朱如凯,等.“连续性”气藏及其大气区形成机制与分布———以四川盆地上三叠统须家河组煤系大气区为例[J].石油勘探与开发,2000,36(3):307-319.
[9]赵林,夏新宇,戴金星.鄂尔多斯盆地上古生界天然气的运移与聚集[J].地质地球化学,2000,28(3):48-53.
[10]汪泽成,陈孟晋,王震,等.鄂尔多斯盆地上古生界克拉通坳陷盆地煤成气成藏机制[J].石油学报,2006,27(5):8-12.
[11]杨华,魏新善.鄂尔多斯盆地苏里格地区天然气勘探新进展[J].天然气工业,2007,27(12):6-11.
[12]关德范,郑和荣,龙胜祥.中国石化东部探区油气勘探潜力分析[J].石油学报,2003,24(2):l-5.
[13]史松群,张盟勃,程思检,等.苏里格气田全数字地震勘探技术及应用[J].中国石油勘探,2007(3):33-42.
[14]张明禄,吴正,樊友宏,等.鄂尔多斯盆地低渗透气藏开发技术及开发前景[J].天然气工业,2011,31(7):1-4.
[15]冉新权.长庆油气田开发建设中的工程管理创新[J].中国工程科学,2008,10(12):58-62.
[16]刘祎,杨光,王登海,等.苏里格气田地面系统标准化设计[J].天然气工业,2007,27(12):124-125.
[17]朱天寿,刘祎,周玉英,等.苏里格气田数字化集气站建设管理模式[J].天然气工业,2011,31(2):9-11.
[18]冉新权.苏里格低渗透气田开发技术最新进展[J].天然气工业,2011,31(12):59-62.
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