新场气田须家河气藏含气性地震检测研究
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摘要
新场气田须家河气藏属于深层陆相致密碎屑岩气藏,具有致密、低孔渗、薄互层、多层叠置和强非均质性的特点。勘探成功率低、效果差。为此,针对须家河气藏开展了一系列方法研究,形成了一套针对此类气藏的含气检测技术——吸收速度频散(AVD)预测技术、动态能谱(DR)预测技术、瞬时子波能量吸收(WEA)预测技术、 Proni吸收滤波(PF)预测技术、储层频谱成像吸收梯度(AG)预测技术以及AVO反演属性(剪切模量μ、拉梅常数λ、泊松比σ)分析技术等。利用这套技术对须家河气藏进行了含气性检测,结果表明,含气砂岩储层具有高 AVD异常、高DR异常、高WEA异常、低PF异常、低AG异常、高μ异常、低λ异常和低σ异常等特征。因此, 综合应用这些异常特征信息,可以对非均匀致密砂岩进行含气性检测。
As a tight clastic rocks reservoir in deep land-fades strata, T3x gas reservoir is characterized by tightness, low permeability, thin inter-bed, multilayer nappe and high heterogeneity in Xinchang Gas Field. A series of seismic technologies for detection is developed, such as AVD(seismic absorption and velocity dispersion ) , DR ( dynamic register ) , WEA (wave energy attenuation), PF(Proni filter), AG (absorption grads) and the AVO attributes (Lame's modulus λ, the shear modulus μ and the Poisson ratio σ)analysis, etc. The testing results show that the characteristics of gas bearing sandstone in T3x are AVD, high DR, high WEA, low PF, low AG, high μ , low A and low σ, etc. By integrating above information, the gas bearing prediction to tight clastic rocks reservoir with heterogeneity can be achieved.
As a tight clastic rocks reservoir in deep land-fades strata, T3x gas reservoir is characterized by tightness, low permeability, thin inter-bed, multilayer nappe and high heterogeneity in Xinchang Gas Field. A series of seismic technologies for detection is developed, such as AVD(seismic absorption and velocity dispersion ) , DR ( dynamic register ) , WEA (wave energy attenuation), PF(Proni filter), AG (absorption grads) and the AVO attributes (Lame's modulus λ, the shear modulus μ and the Poisson ratio σ)analysis, etc. The testing results show that the characteristics of gas bearing sandstone in T3x are AVD, high DR, high WEA, low PF, low AG, high μ , low A and low σ, etc. By integrating above information, the gas bearing prediction to tight clastic rocks reservoir with heterogeneity can be achieved.
引文
1李显贵,邵吉华,张涛．波阻抗模型正演技术在砂岩储 层预测中的应用[J]．石油物探,2004,43(6):584- 586
2杨振武,李显贵,王安志．新场、东泰、合兴场三维地震 相干及应用[J]．石油地球物理勘探,2000,35(3): 339-345
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4李显贵,文雪康,王紫娟,等．洛带气田地震多参数综 合油气预测研究[J]．石油地球物理勘探,2000,35(6): 779-785
5李显贵．非线性突变在石龙场油气预测中的应用[J]． 石油物探,2003,42(3):306-308
6李正文,李琼,唐建明．油气储集层线性与非线性联合 预测方法技术及应用[J]．石油物探,2000,39(2): 15-23
7唐建明．川西坳陷致密非均质气藏储层空间展布刻划 [J]．天然气工业,2002,22(4):19-23。
8唐云,李显贵,邱华,等．宽方位地震资料采集观测系统 设计初探[J]．石油物探,2003,42(2):233-236
9唐建明．AVO纵横波反演[J]．物探化探计算技术, 2002,24(1):34-39
10李显贵,甘其刚．川西坳陷致密非均质储层地震识别 技术[J]．特种油气藏,2004,11(5):32-35
2杨振武,李显贵,王安志．新场、东泰、合兴场三维地震 相干及应用[J]．石油地球物理勘探,2000,35(3): 339-345
3许多,李显贵,刘殊,等．合兴场地震资料吸收油气预测 研究[J]．物探化探计算技术,2000,22(2):56-58
4李显贵,文雪康,王紫娟,等．洛带气田地震多参数综 合油气预测研究[J]．石油地球物理勘探,2000,35(6): 779-785
5李显贵．非线性突变在石龙场油气预测中的应用[J]． 石油物探,2003,42(3):306-308
6李正文,李琼,唐建明．油气储集层线性与非线性联合 预测方法技术及应用[J]．石油物探,2000,39(2): 15-23
7唐建明．川西坳陷致密非均质气藏储层空间展布刻划 [J]．天然气工业,2002,22(4):19-23。
8唐云,李显贵,邱华,等．宽方位地震资料采集观测系统 设计初探[J]．石油物探,2003,42(2):233-236
9唐建明．AVO纵横波反演[J]．物探化探计算技术, 2002,24(1):34-39
10李显贵,甘其刚．川西坳陷致密非均质储层地震识别 技术[J]．特种油气藏,2004,11(5):32-35
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