考虑重力及气体非达西效应影响的边水气藏边水突破时间预测模型

汪周华; 王子敦; 邓丹; 郭平; 刘宁

doi:10.13639/j.odpt.2016.02.016

高级检索

E-mail Alert

考虑重力及气体非达西效应影响的边水气藏边水突破时间预测模型

汪周华, 王子敦, 邓丹, 郭平, 刘宁

文章导航 > 石油钻采工艺 > 2016 > 38(2): 210-215

汪周华, 王子敦, 邓丹, 郭平, 刘宁. 考虑重力及气体非达西效应影响的边水气藏边水突破时间预测模型[J]. 石油钻采工艺, 2016, 38(2): 210-215. doi: 10.13639/j.odpt.2016.02.016

引用本文:

WANG Zhouhua, WANG Zidun, DENG Dan, GUO Ping, LIU Ning. Model for prediction of edge-water breakthrough time in reservoirs with edge water with consideration to effects of gravity and non-Darcy effect of gases[J]. Oil Drilling & Production Technology, 2016, 38(2): 210-215. doi: 10.13639/j.odpt.2016.02.016

Citation:

WANG Zhouhua, WANG Zidun, DENG Dan, GUO Ping, LIU Ning. Model for prediction of edge-water breakthrough time in reservoirs with edge water with consideration to effects of gravity and non-Darcy effect of gases[J]. Oil Drilling & Production Technology, 2016, 38(2): 210-215. doi: 10.13639/j.odpt.2016.02.016

考虑重力及气体非达西效应影响的边水气藏边水突破时间预测模型

doi: 10.13639/j.odpt.2016.02.016

1.
西南石油大学油气藏地质及开发国家重点实验室
2.
中国石油华北油田公司

详细信息

中图分类号: TE349

Model for prediction of edge-water breakthrough time in reservoirs with edge water with consideration to effects of gravity and non-Darcy effect of gases

1.
State Key Laboratory of Southwest Petroleum University, Chengdu, Sichuan 610500. China
2.
PetroChina Huabei Oilfield Company, Renqiu, Hebei 062552, China

摘要: 现有边水突破时间预测模型都是基于平面，然而实际气藏与水平面总存在一定的倾角，所以不能忽略重力作用的影响。基于气水两相渗流力学理论，综合考虑地层倾角、气体非达西流动效应、气水流度比和气井距边水的长度等因素，建立实际倾斜边水气藏新模型，并进行敏感性分析。实例分析表明，与已有预测模型相比，新模型预测的边水突破时间更接近实际。敏感性分析表明，边水突破时间与地层倾角呈二次抛物线关系，在地层倾角为90°时边水突破时间达到最大；与气井距边水的长度呈幂函数关系，在气井距边水的长度达到500 m 后，边水突破时间的增加量每100 m 增加7 d；与气井产量及气体非达西系数都呈反比关系，在开发前期边水突破时间的降低程度接近90%，当气井水淹后则基本对边水突破时间无影响；与气水流度比及储层厚度都呈线性关系，边水突破时间在气水流度比值每增加1 倍时增加30 d，在储层厚度每增加1 m 时则增大49 d。因此在气井生产初期，准确确定这些参数显得尤为重要。研究成果可对实际边水气藏的高效开发提供技术支撑。
- 边水气藏 /
- 突破时间 /
- 预测模型 /
- 重力 /
- 非达西效应
Abstract: All existing models for prediction of edge-water breakthrough time are based on horizontal plane. However, actual gas reservoirs always have certain dips from the horizontal plane. It is necessary to consider effects of the gravity. According to the theories for gas-water flow mechanics, and with consideration to dip angles, non-Darcy flow effects of gases, gas/water mobility ratios, distances between gas well and the edge water, and other factors, a new model for inclined gas reservoirs with edge water was built. Then, sensitivity analysis was performed for the new model. Compared with existing prediction models, the new model can predict breakthrough time of edge water closer to actual time. Sensitivity analysis shows that edge-water breakthrough time is in quadratic parabola relationship with dip angles. The maximum edge water breakthrough time can be observed at the dip angle of 90°. The edge-water breakthrough time is in power-function relationship with the distance between the gas well and the edge water. With such distance of 500 m or more, the edge-water breakthrough time increases 7 d for every 100 m. Moreover, the edge-water breakthrough time is in inverse relationship with both gas well productivity and non-Darcy factors of relevant gases. In earlier stage of development, the breakthrough time of edge water reduces up to 90%. When the gas well is flooded, effects on breakthrough time of the edge water are ignorable. Furthermore, the edge-water breakthrough time is in liner relation with both gas/water flow rate and reservoir thickness. The edge-water breakthrough time increases 30 d when the gas/water flow rate is doubled, and increases 49 d for every additional meter in reservoir thickness. It is very important to determine these parameters accurately in early stage of gas well production. The research results can provide necessary technical supports for high-efficiency development of gas reservoirs with edge water.
- gas reservoirs with edge water /
- breakthrough time /
- prediction model /
- gravity /
- non-Darcy effect

[1]	彭超, 邓津辉, 谭忠健, 秦艳艳, 袁亚东, 姚强. 基于测井资料的渤中34-9油田火成岩地层抗钻特性评价 . 石油钻采工艺, 2022, 44(2): 186-190. doi: 10.13639/j.odpt.2022.02.008
[2]	黄洪林, 李军, 张更, 杨宏伟, 高热雨, 李文拓, 罗鸣, 张万栋. 莺歌海盆地斜坡带全井段孔隙压力预测方法 . 石油钻采工艺, 2022, 44(4): 401-407. doi: 10.13639/j.odpt.2022.04.001
[3]	何小东, 张磊, 黄勇, 杨洪, 陈森. SAGD水平井启动阶段汽腔加热边界预测模型 . 石油钻采工艺, 2017, 39(5): 541-546. doi: 10.13639/j.odpt.2017.05.002
[4]	夏俊, 李相方, 李振男, 于鹏亮, 孙政, 蒋明洁. 考虑不同完井方式的高速非达西效应评价方法 . 石油钻采工艺, 2016, 38(4): 452-455. doi: 10.13639/j.odpt.2016.04.009
[5]	许云锦, 杨进, 周波, 孟炜. 深水钻井喷射法安装表层导管极限下入深度确定 . 石油钻采工艺, 2016, 38(5): 553-557. doi: 10.13639/j.odpt.2016.05.002
[6]	王锦昌. 大牛地气田下套管作业中环空波动压力分析 . 石油钻采工艺, 2016, 38(1): 36-41. doi: 10.13639/j.odpt.2016.01.008
[7]	李彦尊, 李相方, 徐敏, 武文涛, 张晓舟. 页岩气藏产量递减预测模型研究及应用 . 石油钻采工艺, 2015, 37(6): 74-77. doi: 10.13639/j.odpt.2015.06.018
[8]	丁亮亮, 杨向同, 刘洪涛, 张宇. 超深水平井尾管悬挂器下部环空压力预测及其应用 . 石油钻采工艺, 2015, 37(5): 10-13. doi: 10.13639/j.odpt.2015.05.003
[9]	罗洪斌, 田波, 蒋世全, 彭作如. 考虑海底增压的深水钻井当量循环密度预测方法 . 石油钻采工艺, 2015, 37(1): 72-75. doi: 10.13639/j.odpt.2015.01.018
[10]	陈绍云, 邢琛, 孙妍. 提高庆深气田气体钻井效率技术研究 . 石油钻采工艺, 2014, 36(1): 22-25.
[11]	齐桃, 吴晓东, 冯益富, 张庆生, 史晓贞. 气井井下节流工艺设计方法研究与应用 . 石油钻采工艺, 2011, 33(5): 72-75.
[12]	蒲春生, 裴润有, 吴飞鹏, 高永亮, 居迎军. 胡尖山油田水力压裂效果灰色关联评价模型 . 石油钻采工艺, 2010, 32(4): 54-56.
[13]	罗艳艳, 李春兰, 黄世军. 稠油油藏出砂量预测方法研究及应用 . 石油钻采工艺, 2009, 31(1): 65-68.
[14]	韩光明, 李明忠, 李岩芳, 何龙. 统一函数关系的凝析气井流入动态模型 . 石油钻采工艺, 2007, 29(5): 26-28. doi: 10.3969/j.issn.1000-7393.2007.05.008
[15]	雷征东, 李相方, 程时清. 考虑拖曳力的出砂预测新模型及应用 . 石油钻采工艺, 2006, 28(1): 69-72. doi: 10.3969/j.issn.1000-7393.2006.01.019
[16]	王治中, 邓金根, 蔚保华, 田红. 弱固结砂岩油藏出砂量预测模型 . 石油钻采工艺, 2006, 28(2): 58-61. doi: 10.3969/j.issn.1000-7393.2006.02.018
[17]	王治中, 邓金根, 田红, 蔚保华. 弱胶结砂岩油藏出砂量预测技术研究进展 . 石油钻采工艺, 2005, 27(6): 70-75. doi: 10.3969/j.issn.1000-7393.2005.06.022
[18]	康晓东, 覃斌, 李相方, 程时清. 凝析气藏考虑毛管数和非达西效应的渗流特征 . 石油钻采工艺, 2004, 26(4): 41-45. doi: 10.3969/j.issn.1000-7393.2004.04.015
[19]	冯其红, 陈耀武, 郭京来. 注水井调剖效果预测统计方法研究 . 石油钻采工艺, 2003, 25(6): 63-66. doi: 10.3969/j.issn.1000-7393.2003.06.020
[20]	桂德洙. 浅谈钻井测斜仪 . 石油钻采工艺, 1999, 21(5): 45-49. doi: 10.3969/j.issn.1000-7393.1999.05.011

点击查看大图

计量

文章访问数: 503
HTML全文浏览量: 15
PDF下载量: 582
被引次数: 0

考虑重力及气体非达西效应影响的边水气藏边水突破时间预测模型

doi: 10.13639/j.odpt.2016.02.016

1. 西南石油大学油气藏地质及开发国家重点实验室

2. 中国石油华北油田公司

收稿日期: 2019-05-22
修回日期: 2019-05-22
刊出日期: 2016-05-11

中图分类号: TE349

关键词:

重力 /

摘要: 现有边水突破时间预测模型都是基于平面，然而实际气藏与水平面总存在一定的倾角，所以不能忽略重力作用的影响。基于气水两相渗流力学理论，综合考虑地层倾角、气体非达西流动效应、气水流度比和气井距边水的长度等因素，建立实际倾斜边水气藏新模型，并进行敏感性分析。实例分析表明，与已有预测模型相比，新模型预测的边水突破时间更接近实际。敏感性分析表明，边水突破时间与地层倾角呈二次抛物线关系，在地层倾角为90°时边水突破时间达到最大；与气井距边水的长度呈幂函数关系，在气井距边水的长度达到500 m 后，边水突破时间的增加量每100 m 增加7 d；与气井产量及气体非达西系数都呈反比关系，在开发前期边水突破时间的降低程度接近90%，当气井水淹后则基本对边水突破时间无影响；与气水流度比及储层厚度都呈线性关系，边水突破时间在气水流度比值每增加1 倍时增加30 d，在储层厚度每增加1 m 时则增大49 d。因此在气井生产初期，准确确定这些参数显得尤为重要。研究成果可对实际边水气藏的高效开发提供技术支撑。

English Abstract

Model for prediction of edge-water breakthrough time in reservoirs with edge water with consideration to effects of gravity and non-Darcy effect of gases

1. State Key Laboratory of Southwest Petroleum University, Chengdu, Sichuan 610500. China

2. PetroChina Huabei Oilfield Company, Renqiu, Hebei 062552, China

Received Date: 2019-05-22
Rev Recd Date: 2019-05-22
Publish Date: 2016-05-11

Keywords:

Abstract: All existing models for prediction of edge-water breakthrough time are based on horizontal plane. However, actual gas reservoirs always have certain dips from the horizontal plane. It is necessary to consider effects of the gravity. According to the theories for gas-water flow mechanics, and with consideration to dip angles, non-Darcy flow effects of gases, gas/water mobility ratios, distances between gas well and the edge water, and other factors, a new model for inclined gas reservoirs with edge water was built. Then, sensitivity analysis was performed for the new model. Compared with existing prediction models, the new model can predict breakthrough time of edge water closer to actual time. Sensitivity analysis shows that edge-water breakthrough time is in quadratic parabola relationship with dip angles. The maximum edge water breakthrough time can be observed at the dip angle of 90°. The edge-water breakthrough time is in power-function relationship with the distance between the gas well and the edge water. With such distance of 500 m or more, the edge-water breakthrough time increases 7 d for every 100 m. Moreover, the edge-water breakthrough time is in inverse relationship with both gas well productivity and non-Darcy factors of relevant gases. In earlier stage of development, the breakthrough time of edge water reduces up to 90%. When the gas well is flooded, effects on breakthrough time of the edge water are ignorable. Furthermore, the edge-water breakthrough time is in liner relation with both gas/water flow rate and reservoir thickness. The edge-water breakthrough time increases 30 d when the gas/water flow rate is doubled, and increases 49 d for every additional meter in reservoir thickness. It is very important to determine these parameters accurately in early stage of gas well production. The research results can provide necessary technical supports for high-efficiency development of gas reservoirs with edge water.

引用本文:

Citation:

WANG Zhouhua, WANG Zidun, DENG Dan, GUO Ping, LIU Ning. Model for prediction of edge-water breakthrough time in reservoirs with edge water with consideration to effects of gravity and non-Darcy effect of gases[J]. Oil Drilling & Production Technology, 2016, 38(2): 210-215. doi: 10.13639/j.odpt.2016.02.016