WLT地区深层火山岩储层地震识别与描述
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摘要
松辽盆地北部东南断陷区的XJWZ断陷带火山岩发育,火山岩储层是该区深层天然气勘探的目标储层。XJWZ断陷带南部的火山岩储层勘探已获得可观的天然气储量,北部地区的火山岩储层研究很少。为此,在位于北部的WLT地区开展了火山岩储层研究。首先分析了火山岩的地震反射特征、水平切片特征和相干体特征;在此基础上对火山岩进行了识别,包括火山岩标定、火山岩体顶面识别和火山口位置确定等,并利用可视化技术刻画了火山岩体的空间变化特征;最后,对火山岩体的区域分布特征进行了描述,预测出20个火山岩体。根据预测结果部署了2口井,均钻遇较厚的火山岩,其中1口井获得了19513m~3/d的工业气流。
XJWZ fault belt is located in the southeast fault area,north Songliao basin.Volcanies develops in the area,and is the target reservoir.The volcanics reservoirs in the south of XJWZ fault belt have abundant gas reserves.However,few researches about the north area have been done.Therefore,we have studied the volcan- ics reservoirs in the north WLT area.Firstly,characteristics of volcanic rocks were studied,including seismic reflection character- istics,horizontal slice characteristics,and coherent body character- istics.Then,the volcanics was identified,such as volcanics cali- bration,top surface recognition,and calderon identification,etc. Meanwhile,the visualization technique was also adopted to de- scribe the spatial alternation characteristics.Finally,the areal dis- tribution of volcanics bodies was described and 20 volcanic bodies predicted.Two wells were deployed based on the prediction and thick volcanics was drilled,one of the wells obtained 19 513 m~3/d industrial gas flow.
XJWZ fault belt is located in the southeast fault area,north Songliao basin.Volcanies develops in the area,and is the target reservoir.The volcanics reservoirs in the south of XJWZ fault belt have abundant gas reserves.However,few researches about the north area have been done.Therefore,we have studied the volcan- ics reservoirs in the north WLT area.Firstly,characteristics of volcanic rocks were studied,including seismic reflection character- istics,horizontal slice characteristics,and coherent body character- istics.Then,the volcanics was identified,such as volcanics cali- bration,top surface recognition,and calderon identification,etc. Meanwhile,the visualization technique was also adopted to de- scribe the spatial alternation characteristics.Finally,the areal dis- tribution of volcanics bodies was described and 20 volcanic bodies predicted.Two wells were deployed based on the prediction and thick volcanics was drilled,one of the wells obtained 19 513 m~3/d industrial gas flow.
引文
1蔡先华，谭胜章．松辽盆地南部长岭断陷火成岩分布及成藏规律[J]．石油物探，2002，41(3)：363～366
2唐建仁，刘金平，许春来，等．松辽盆地北部徐家围子断陷的火成岩分布及成藏规律[J]．石油地球物理勘探，2001，36(3)：346～349
3刘祥云，何展翔，张碧涛，等．识别火成岩岩性的综合物探技术[J]．勘探地球物理进展，2006，29(2)：115～118
4李彦民，李艳丽，赵微林，等．深层火成岩储集层定量预测方法的探讨[J]．石油地球物理勘探，2002，37(2)：175～179
5温声明，王建中，王贵重，等．塔里木盆地火成岩发育特征及对油气藏的影响[J]．石油地球物理勘探，2005，40 (增刊)：33～39
6陈海运，林春明，张云银，等．济阳坳陷新生代火成岩的识别[J]．石油地球物理勘探，2005，40(6)：663～669
7夏步余，湛廷姗．地震技术在火成岩发育区开发中的应用[J]．石油物探，2002，41(4)：461～465
8崔凤林，勾永峰，蔡朝晖，等．用于火山岩预测的地震属性提取及有效性分析方法研究[J]．石油物探，2005，44 (6)：598～600
9曹国银，刘娅铭，孟宪录，等．深层火山口位置及火山岩相推测方法的研究与应用[J]．石油物探，2002，41(增刊)：190～192
10张秀容，杨亚娟，向景红，等．松辽盆地南部深层火山岩识别及成藏条件分析[J]．勘探地球物理进展，2006，29 (3)：211～215
2唐建仁，刘金平，许春来，等．松辽盆地北部徐家围子断陷的火成岩分布及成藏规律[J]．石油地球物理勘探，2001，36(3)：346～349
3刘祥云，何展翔，张碧涛，等．识别火成岩岩性的综合物探技术[J]．勘探地球物理进展，2006，29(2)：115～118
4李彦民，李艳丽，赵微林，等．深层火成岩储集层定量预测方法的探讨[J]．石油地球物理勘探，2002，37(2)：175～179
5温声明，王建中，王贵重，等．塔里木盆地火成岩发育特征及对油气藏的影响[J]．石油地球物理勘探，2005，40 (增刊)：33～39
6陈海运，林春明，张云银，等．济阳坳陷新生代火成岩的识别[J]．石油地球物理勘探，2005，40(6)：663～669
7夏步余，湛廷姗．地震技术在火成岩发育区开发中的应用[J]．石油物探，2002，41(4)：461～465
8崔凤林，勾永峰，蔡朝晖，等．用于火山岩预测的地震属性提取及有效性分析方法研究[J]．石油物探，2005，44 (6)：598～600
9曹国银，刘娅铭，孟宪录，等．深层火山口位置及火山岩相推测方法的研究与应用[J]．石油物探，2002，41(增刊)：190～192
10张秀容，杨亚娟，向景红，等．松辽盆地南部深层火山岩识别及成藏条件分析[J]．勘探地球物理进展，2006，29 (3)：211～215
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