准噶尔盆地克拉美丽火山岩气田开发技术
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摘要
克拉美丽气田是新疆油田发现的第1个火山岩气田,也是准噶尔盆地第1个特大型火山岩气田,由于对火山岩气田的开发经验欠缺,目前准噶尔盆地没有现成的研究成果和开发经验可以借鉴,气田若进行全面开发,存在气藏控制因素和构造内幕不清、储层预测和裂缝识别难度大、有效储层的识别和分布不清、开发技术政策界限和开发主体技术不确定等难点。针对这些难点,采用全三维解释、测井响应特征分析、地震反演、气藏综合分析方法与数值模拟、欠平衡、水平井钻井和压裂改造等技术,对火山岩气藏的地质特征进行了精细刻画,建立了岩性识别图版;研究了开发技术政策界限,确定直井单井产量为3.5×10~4～7×10~4m~3/d,采气速度为1.5%～2.5%,建成了年产气量为5×10~8m~3的产能规模。
Kelameili gas field is the first large volcanic gas field,which has no previous research and development experience for present reference due to the lack of exploitation experience of volcanic field.There are several difficulties to develop it,such as the understanding of the controlling factors and internal tectonics of the gas reservoir,the difficulty of reservoir prediction and fracture identification,and the uncertain criterion on reservoir classification and evaluation,as well as the uncertain identification and distribution of effective reservoir,therefore,it is hard to determine the limits of development technique policy and main development techniques.In this paper,the geological features of volcanic gas reservoirs are thoroughly characterized,and the lithologic identification drawing board is established,so,the capacity and production rate are identified.Based on that,the main development techniques are proposed and the problems of gas reservoir development are solved by three-dimensional interpretation,logging response analysis,seismic inversion,comprehensive analysis of gas reservoir and numerical simulation,underbalanced and horizontal drilling techniques and other techniques.A series of techniques which are applicable to development of volcanic gas reservoir in Juggar basin has been formed by technical studies on volcanic gas reservoir exploitation.
Kelameili gas field is the first large volcanic gas field,which has no previous research and development experience for present reference due to the lack of exploitation experience of volcanic field.There are several difficulties to develop it,such as the understanding of the controlling factors and internal tectonics of the gas reservoir,the difficulty of reservoir prediction and fracture identification,and the uncertain criterion on reservoir classification and evaluation,as well as the uncertain identification and distribution of effective reservoir,therefore,it is hard to determine the limits of development technique policy and main development techniques.In this paper,the geological features of volcanic gas reservoirs are thoroughly characterized,and the lithologic identification drawing board is established,so,the capacity and production rate are identified.Based on that,the main development techniques are proposed and the problems of gas reservoir development are solved by three-dimensional interpretation,logging response analysis,seismic inversion,comprehensive analysis of gas reservoir and numerical simulation,underbalanced and horizontal drilling techniques and other techniques.A series of techniques which are applicable to development of volcanic gas reservoir in Juggar basin has been formed by technical studies on volcanic gas reservoir exploitation.
引文
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[2]凌立苏,许江文,金立新,等.克拉美丽石炭系火山岩气藏勘探试气配套技术应用[J].油气井测试,2010,19(2):47-50.
[3]王璞珺,陈树民,刘万洙,等.松辽盆地火山岩相与火山岩储层的关系[J].石油与天然气地质,2003,24(1):18-23.
[4]田晓玲,张学武.彰武盆地张强凹陷火山岩特征[J].油气地质与采收率,2001,8(6):22-24.
[5]赵一民,汤达祯,边树涛.地震频谱衰减属性在松辽盆地南部深层火山岩气藏预测中的应用[J].油气地质与采收率,2009, 16(2):46-48,54.
[6]王延杰,张玉亮,刘念周,等.克拉美丽气田石炭系火成岩有利储集层预测[J].新疆石油地质,2010,31(1):7-9.
[7]徐正顺,王渝明,庞彦明,等.大庆徐深气田火山岩气藏储集层识别与评价[J].石油勘探与开发,2006,33(5):521-531.
[8]张营革,高秋菊,苏朝光,等.济阳坳陷第三系不整合地层油藏地震描述技术[J].油气地质与采收率,2008,15(3):46-49.
[9]赵铭海.常用叠后波阻抗反演技术评析[J].油气地质与采收率,2004,11(1):36-38.
[10]朱黎鹞,李留仁,马彩琴.长岭火山岩气藏水平井开发技术[J].西安石油大学学报:自然科学版,2009,24(5):53-56.
[11]徐正顺,王渝明,庞彦明,等.大庆徐深气田火山岩气藏的开发[J].天然气工业,2008,28(12):74-77.
[12]陈元千.油气藏工程计算方法[M].北京:石油工业出版社, 1990.
[13]庄惠农.气藏动态描述和试井[M].北京:石油工业出版社, 2004.
[14]张文波,周鹏高,康毅力,等.克拉美丽气田裂缝性气藏水平井钻井方位优化设计[J].石油天然气学报(江汉石油学院学报),2010,32(2):296-298.
[15]唐伏平,柳海,赵丽萍,等.克拉美丽气田采气工艺技术[J].天然气工业,2010,30(2):61-62.
[16]王晓磊,柳海,达勇,等.克拉美丽气田火山岩气藏储层改造技术[J].天然气工业,2010,30(2):63-65.
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