一种适用于海上疏松砂岩油田的防砂设计方法
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摘要
在考虑了地层砂粒度中值、均质系数、泥质含量以及蒙脱石含量4个参数的基础上,开展室内防砂试验,并结合现场统计数据,建立了适合于我国海上油田的防砂方式设计图版。针对不同类型的防砂筛管及不同尺寸的砾石开展防砂参数室内试验,得出结论:在产出液含砂量不超过0.5‰时,优质筛管挡砂精度可放大到地层砂d50的1.28倍左右,砾石尺寸的设计可适当放大到d50的6~7倍左右,相比于常规防砂方式,油井产能可提高30%左右。本防砂设计方法已在海上多个油田开发方案设计中得到应用。
Median value of formation grain size, uniformity coefficient, shale content and smectite content are 4 main parameters in our laboratory sand control experiment. Based on the experiment and analyzed the field data, we build a new plate which can applied in China offshore field quite well. A series of sand control screen and gravel are tested in laboratory, and combined with grain size distribution in field, a conclusion is arrived: when sand content in production fluid is less than 0.5‰, the precision of sand screen can be magnified around 1.28d50, the gravel size can be magnified around 6~7×d50. The well productivity can be improved around 30% when compared with conventional method. The method of this paper was applied in many offshore oilfields in China.
Median value of formation grain size, uniformity coefficient, shale content and smectite content are 4 main parameters in our laboratory sand control experiment. Based on the experiment and analyzed the field data, we build a new plate which can applied in China offshore field quite well. A series of sand control screen and gravel are tested in laboratory, and combined with grain size distribution in field, a conclusion is arrived: when sand content in production fluid is less than 0.5‰, the precision of sand screen can be magnified around 1.28d50, the gravel size can be magnified around 6~7×d50. The well productivity can be improved around 30% when compared with conventional method. The method of this paper was applied in many offshore oilfields in China.
引文
[1]周守为,孙福街,曾祥林,等.稠油油藏分支水平井适度出砂开发技术[J].石油勘探与开发,2008,35(5):630-635.
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[4]Selfridge F,Munday M,Kvernvold O,et al.Safely improving production performance through improved sandmanagement[R].SPE 83979,2003.
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[8]单高军,杜志敏.完井方式对适度出砂井产能的影响研究[J].西南石油大学学报(自然科学版),2008,30(3):72-75.
[9]Saucier R S.Considerations in gravel pack design[R].SPE Reprint No.43,1996,205-212.
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[11]George G,Johnson S,Calvin K D.Screen selection for sand control based on laboratory tests[C]//.SPE Asia Pacific Oil and Gas Conference,2000,10:16-18.
[12]邓金根,李萍,王利华,等.渤海湾地区适度防砂技术防砂方式优选[J].石油钻采工艺,2011,33(1):98-101.
[13]王利华,邓金根,周建良,等.适度出砂开采标准金属网布优质筛管防砂参数设计实验研究[J].中国海上油气,2011,23(2):107-110.
[14]邹洪岚,汪绪刚,邓金根.大型疏松砂岩油藏出砂产能模拟试验及防砂方式优选[J].辽宁工程技术大学学报:自然科学版,2009,28(增刊):142-145.
[2]王治中,田红,邓金根,等.利用出砂管理技术提高油井产能[J].石油钻采工艺,2006,28(3):59-63.
[3]韩国庆,符翔,吴晓东,等.适度出砂开采方式在海上油田的应用[J].国外油田工程,2004,20(2):19-22.
[4]Selfridge F,Munday M,Kvernvold O,et al.Safely improving production performance through improved sandmanagement[R].SPE 83979,2003.
[5]Mcphee C A,Enzendorfer C K.Sandmanagement solution for high-rate gas wells sawan field,pakistan[R].SPE86535,2004.
[6]周守为.海上稠油高效开发新模式研究及应用[J].西南石油大学学报,2007,29(5):1-4.
[7]曾祥林,孙福街,王星,等.渤海疏松砂岩常规稠油提高单井产能对策研究[J].钻采工艺,2005,28(6):36-39.
[8]单高军,杜志敏.完井方式对适度出砂井产能的影响研究[J].西南石油大学学报(自然科学版),2008,30(3):72-75.
[9]Saucier R S.Considerations in gravel pack design[R].SPE Reprint No.43,1996,205-212.
[10]Tiffin C L,King G E,Larese R E,et al.New criteria for gravel and screen selection for sand control[J].SPE39437,1998,2:18-19:.
[11]George G,Johnson S,Calvin K D.Screen selection for sand control based on laboratory tests[C]//.SPE Asia Pacific Oil and Gas Conference,2000,10:16-18.
[12]邓金根,李萍,王利华,等.渤海湾地区适度防砂技术防砂方式优选[J].石油钻采工艺,2011,33(1):98-101.
[13]王利华,邓金根,周建良,等.适度出砂开采标准金属网布优质筛管防砂参数设计实验研究[J].中国海上油气,2011,23(2):107-110.
[14]邹洪岚,汪绪刚,邓金根.大型疏松砂岩油藏出砂产能模拟试验及防砂方式优选[J].辽宁工程技术大学学报:自然科学版,2009,28(增刊):142-145.