大斜度拟水平井分段压裂产能计算及影响因素研究

郑永旺; 王伟; 任建华; 倪振玉; 卢比; 胡春锋

doi:10.13809/j.cnki.cn32-1825/te.2025278

油气开发 | 浏览量 : 0 下载量: 41 CSCD: 0 CNKI被引量: 0 Scopus: 0 更多指标

PDF
导出
分享
收藏
专辑

大斜度拟水平井分段压裂产能计算及影响因素研究
Productivity calculation and influencing factors of staged fracturing in high-inclination pseudo-horizontal wells
2026年16卷第2期页码：374-382
收稿：2025-11-11，

纸质出版：2026-03-26
DOI： 10.13809/j.cnki.cn32-1825/te.2025278
稿件说明：

移动端阅览

郑永旺, 王伟, 任建华, 等. 大斜度拟水平井分段压裂产能计算及影响因素研究[J]. 油气藏评价与开发, 2026, 16(2): 374-382. DOI： 10.13809/j.cnki.cn32-1825/te.2025278.

ZHENG Yongwang, WANG Wei, REN Jianhua, et al. Productivity calculation and influencing factors of staged fracturing in high-inclination pseudo-horizontal wells[J]. Petroleum Reservoir Evaluation and Development, 2026, 16(2): 374-382. DOI： 10.13809/j.cnki.cn32-1825/te.2025278.

摘要

在低渗透复杂构造油藏水平井开发中，当地层倾角较大且最大主应力方向与地层倾向垂直时，受构造约束的水平井轨迹易演变为大斜度井拟水平井。此时，地层倾角对油井产能的调控作用已不可忽略。因此，为实现此类井压裂后产能的快速精准预测，本文基于等效虚拟井径理论，融合地层倾角效应，建立了大斜度拟水平井分段压裂产能预测模型。通过与数值模拟结果对比，验证了模型的可靠性，并对大斜度拟水平井分段压裂产能影响因素进行了分析。研究结果表明：水平段越长，大斜度拟水平井产能越高；地层厚度与倾角对油井产能影响显著，随着地层厚度的增加，油井产能及其增幅均逐渐增大；而随着地层倾角的增大，油井产能降低，且降幅逐渐加大；裂缝半长和裂缝条数均对产能存在显著影响，油井产能随着参数的增大而提高，但增幅呈减缓趋势，存在最优取值范围；地层各向异性越小，大斜度拟水平井产能越高，且产能增幅随各向异性系数减小而增大。通过苏北某油田大斜度井现场实际应用，验证了本文所建立的大斜度拟水平井分段压裂产能模型计算结果与油井实际产能相近，相对误差小于5%，满足现场精度要求。该模型适用于地层倾角10°~40°的油藏条件，能为低渗透复杂构造油藏合理生产制度的制定提供依据，且模型形式简洁，计算效率高，实用性强，便于现场推广应用。

Abstract

In the development of horizontal wells in low-permeability reservoirs with complex structures

when the formation dip angle is large and the direction of the maximum principal stress is perpendicular to the formation dip

the horizontal well trajectory tends to become a high-inclination pseudo-horizontal well due to structural constraints. At this point

the regulatory effects of formation dip angle on well productivity can no longer be neglected. To achieve rapid and accurate prediction of post-fracturing productivity for such wells

this study established a productivity prediction model for staged fracturing in high-inclination pseudo-horizontal wells based on the equivalent virtual wellbore radius theory

incorporating the effect of formation dip angle. By comparing with numerical simulation results

the reliability of the model was verified

and the influencing factors of the productivity of staged fracturing in high-inclination pseudo-horizontal wells were analyzed. The results showed that the longer the horizontal section

the higher the productivity of the high-inclination pseudo-horizontal well. Formation thickness and dip angle significantly influenced well productivity. As formation thickness increased

both the productivity and its growth rate gradually increased. As the formation dip angle increased

well productivity decreased

and the rate of decline gradually accelerated. Both fracture half-length and the number of fractures significantly affected productivity. Oil well productivity increased with the increase of these parameters

but the rate of increase showed a slowing trend

indicating an optimal value range. The smaller the formation anisotropy

the higher the productivity of the high-inclination pseudo-horizontal well. Moreover

the increase rate of productivity grew as the anisotropy coefficient decreased. Through field application in a high-inclination well in the Subei oilfield

it was verified that the calculation results of the productivity model for staged fracturing in high-inclination pseudo-horizontal well established in this study were close to the actual productivity of well CD101X

with a relative error of less than 5%

meeting the accuracy requirements for field applications. This model is applicable to reservoir conditions with formation dip angles of 10°~40°. It can provide a basis for formulating a reasonable production system for low-permeability reservoirs with complex structures. Moreover

the model features a concise form

high computational efficiency

and strong practicality

making it easy for field promotion and application.

关键词

Keywords

references

姚红生 , 云露 , 昝灵 , 等 . 苏北盆地溱潼凹陷阜二段断块型页岩油定向井开发模式及实践 [J ] . 油气藏评价与开发 , 2023 , 13 ( 2 ): 141 - 151 .

YAO Hongsheng , YUN Lu , ZAN Ling , et al . Development mode and practice of fault-block oriented shale oil well in the second member of Funing Formation, Qintong Sag, Subei Basin [J ] . Reservoir Evaluation and Development , 2023 , 13 ( 2 ): 141 - 151 .

吴正 , 江乾锋 , 周游 , 等 . 鄂尔多斯盆地苏里格致密砂岩气田提高采收率关键技术及攻关方向 [J ] . 天然气工业 , 2023 , 43 ( 6 ): 66 - 75 .

WU Zheng , JIANG Qianfeng , ZHOU You , et al . Key technologies and orientation of EOR for the Sulige tight sandstone gas field in the Ordos Basin [J ] . Natural Gas Industry , 2023 , 43 ( 6 ): 66 - 75 .

姚红生 , 王伟 , 何希鹏 , 等 . 南川复杂构造带常压页岩气地质工程一体化开发实践 [J ] . 油气藏评价与开发 , 2023 , 13 ( 5 ): 537 - 547 .

YAO Hongsheng , WANG Wei , HE Xipeng , et al . Development practices of geology-engineering integration in complex structural area of Nanchuan normal pressure shale gas field [J ] . Petroleum Reservoir Evaluation and Development , 2023 , 13 ( 5 ): 537 - 547 .

李勇明 , 周文武 , 赵金洲 , 等 . 低渗透油藏水平井分段压裂半解析产能计算与影响因素研究 [J ] . 油气藏评价与开发 , 2018 , 8 ( 2 ): 52 - 57 .

LI Yongming , ZHOU Wenwu , ZHAO Jinzhou , et al . Semi-analytical productivity calculation and sensitive factors for the multi-stage fractured horizontal well in low permeability reservoirs [J ] . Reservoir Evaluation and Development , 2018 , 8 ( 2 ): 52 - 57 .

胡之牮 , 李树新 , 王建君 , 等 . 复杂人工裂缝产状页岩气藏多段压裂水平井产能评价 [J ] . 油气藏评价与开发 , 2023 , 13 ( 4 ): 459 - 466 .

HU Zhijian , LI Shuxin , WANG Jianjun , et al . Productivity evaluation of multi-stage fracturing horizontal wells in shale gas reservoir with complex artificial fracture occurrence [J ] . Petroleum Reservoir Evaluation and Development , 2023 , 13 ( 4 ): 459 - 466 .

李根生 , 田守嶒 , 盛茂 , 等 . 智能压裂技术研究进展与前景展望 [J ] . 钻采工艺 , 2025 , 48 ( 1 ): 1 - 9 .

LI Gensheng , TIAN Shouceng , SHENG Mao , et al . Research progress and prospect of intelligent hydraulic fracturing technologies [J ] . Drilling and Production Technology , 2025 , 48 ( 1 ): 1 - 9 .

张凤喜 , 牛丛丛 , 张一弛 . 东海低渗透储层水平井分段压裂实施及效果评价 [J ] . 油气藏评价与开发 , 2023 , 13 ( 5 ): 695 - 702 .

ZHANG Fengxi , NIU Congcong , ZHANG Yichi . Evaluation of multi-stage fracturing a horizontal well of low permeability reservoirs in East China Sea [J ] . Petroleum Reservoir Evaluation and Development , 2023 , 13 ( 5 ): 695 - 702 .

姚红生 , 陈贞龙 , 何希鹏 , 等 . 深部煤层气“有效支撑”理念及创新实践: 以鄂尔多斯盆地延川南煤层气田为例 [J ] . 天然气工业 , 2022 , 42 ( 6 ): 97 - 106 .

YAO Hongsheng , CHEN Zhenlong , HE Xipeng , et al . “ Effective support” concept and innovative practice of deep CBM in South Yanchuan Gas Field of the Ordos Basin [J ] . Natural Gas Industry , 2022 , 42 ( 6 ): 97 - 106 .

王晓泉 , 张守良 , 吴奇 , 等 . 水平井分段压裂多段裂缝产能影响因素分析 [J ] . 石油钻采工艺 , 2009 , 31 ( 1 ): 73 - 76 .

WANG Xiaoquan , ZHANG Shouliang , WU Qi , et al . Factors affecting the productivity of multi-section fractures in subsection fracturing of horizontal wells [J ] . Oil Drilling & Production Technology , 2009 , 31 ( 1 ): 73 - 76 .

WANG J C , XU J W , WANG Y Q , et al . Productivity of hydraulically fractured horizontal wells in tight oil reservoirs using a linear composite method [J ] . Journal of Petroleum Science and Engineering , 2018 , 164 : 450 - 458 .

黄世军 , 丁冠阳 , 薛永超 , 等 . 致密油藏压裂水平井非稳态产能评价方法研究 [J ] . 中国科技论文 , 2017 , 12 ( 9 ): 1006 - 1010 .

HUANG Shijun , DING Guanyang , XUE Yongchao , et al . Unsteady deliverability evaluation method of fractured horizontal wells in tight oil reservoirs [J ] . China Sciencepaper , 2017 , 12 ( 9 ): 1006 - 1010 .

REN Z X , YAN R F , HUANG X , et al . The transient pressure behavior model of multiple horizontal wells with complex fracture networks in tight oil reservoir [J ] . Journal of Petroleum Science and Engineering , 2019 , 173 : 650 - 665 .

程林松 , 李春兰 , 郎兆新 , 等 . 分支水平井产能的研究 [J ] . 石油学报 , 1995 , 16 ( 2 ): 49 - 55 .

CHENG L S , LI C L , LANG Z X , et al . The productivity study of branch a horizontal well with multiple branched wells [J ] . Acta Petrolei Sinica , 1995 , 16 ( 2 ): 49 - 55 .

AL RBEAWI S , TIAB D . Transient pressure analysis of a horizontal well with multiple inclined hydraulic fractures using type-curve matching [C ] // Paper SPE-149902-MS presented at the SPE International Symposium and Exhibition on Formation Damage Control , Lafayette, Louisiana, USA, February 2012 .

李建秋 , 曹建红 , 段永刚 , 等 . 页岩气井渗流机理及产能递减分析 [J ] . 天然气勘探与开发 , 2011 , 34 ( 2 ): 34 - 37 .

LI Jianqiu , CAO Jianhong , DUAN Yonggang , et al . Seepage mechanism and productivity decline of shale-gas well [J ] . Natural Gas Exploration and Development , 2011 , 34 ( 2 ): 34 - 37 .

曲占庆 , 曲冠政 , 何利敏 , 等 . 压裂水平井裂缝分布对产能影响的电模拟实验 [J ] . 天然气工业 , 2013 , 33 ( 10 ): 52 - 58 .

QU Zhanqing , QU Guanzheng , HE Limin , et al . The impact of fracture distribution on the productivity of a fractured horizontal well: A study based on electrolytic analogy experiments [J ] . Natural Gas Industry , 2013 , 33 ( 10 ): 52 - 58 .

杜保健 , 程林松 , 黄世军 . 致密油藏分段多簇压裂水平井电模拟实验研究 [J ] . 科学技术与工程 , 2013 , 13 ( 12 ): 3267 - 3270 .

DU Baojian , CHENG Linsong , HUANG Shijun . Study on electrolytic simulation experiment of segmented multi-cluster fractured horizontal well in tight oil reservoirs [J ] . Science Technology and Engineering , 2013 , 13 ( 12 ): 3267 - 3270 .

李龙龙 , 姚军 , 李阳 , 等 . 分段多簇压裂水平井产能计算及其分布规律 [J ] . 石油勘探与开发 , 2014 , 41 ( 4 ): 457 - 461 .

LI Longlong , YAO Jun , LI Yang , et al . Productivity calculation and distribution of staged multi-cluster fractured horizontal wells [J ] . Petroleum Exploration and Development , 2014 , 41 ( 4 ): 457 - 461 .

HU J H , ZHANG C , RUI Z H , et al . Fractured horizontal well productivity prediction in tight oil reservoirs [J ] . Journal of Petroleum Science and Engineering , 2017 , 151 : 159 - 168 .

李宪文 , 刘顺 , 陈强 , 等 . 考虑复杂裂缝网络的致密油藏水平井体积压裂改造效果评价 [J ] . 石油钻探技术 , 2019 , 47 ( 6 ) : 73 - 82 .

LI Xianwen , LIU Shun , CHEN Qiang , et al . An evaluation of the stimulation effect of horizontal well volumetric fracturing in tight reservoirs with complex fracture networks [J ] . Petroleum Drilling Techniques , 2019 , 47 ( 6 ): 73 - 82 .

FANG W C , JIANG H Q , LI J J , et al . A numerical simulation model for multi-scale flow in tight oil reservoirs [J ] . Petroleum Exploration and Development , 2017 , 44 ( 3 ): 446 - 453 .

姜瑞忠 , 张春光 , 崔永正 , 等 . 考虑压敏的双重介质分形油藏非线性渗流模型 [J ] . 断块油气田 , 2018 , 25 ( 5 ): 612 - 616 .

JIANG R Z , ZHANG C G , CUI Y Z , et al . Nonlinear flow model of dual-medium fractal reservoirs considering pressure sensitivity [J ] . Fault-Block Oil & Gas Field , 2018 , 25 ( 5 ): 612 - 616 .

郑永旺 . 大斜度拟水平井分段压裂产能计算方法中国专利 : CN201810034612.0 [P ] . 2018-07-06 .

ZHENG Yongwang . Productivity calculation method for staged fracturing of high-inclination pseudo-horizontal wells : CN201810034612.0 [P ] . 2018-07-06 .

曹小朋 , 刘海成 , 李忠新 , 等 . 基于EDFM的页岩油水平井注水吞吐优化研究 [J ] . 油气藏评价与开发 , 2024 , 14 ( 5 ): 734 - 740 .

CAO Xiaopeng , LIU Haicheng , LI Zhongxin , et al . Optimization of huff-n-puff in shale oil horizontal wells based on EDFM [J ] . Petroleum Reservoir Evaluation and Development , 2024 , 14 ( 5 ): 734 - 740 .

刘研言 . 页岩油水平井连续管底封拖动压裂难点与对策 [J ] . 钻采工艺 , 2024 , 47 ( 1 ): 102 - 107 .

LIU Yanyan . Difficulties and countermeasures of coiled tubing drag fracturing for horizontal shale oil wells [J ] . Drilling & Production Technology , 2024 , 47 ( 1 ): 102 - 107 .

陆红军 , 白晓虎 , 余金柱 , 等 . 长庆致密油藏宽缝压裂技术研究 [J ] . 钻采工艺 , 2024 , 47 ( 6 ): 37 - 43 .

LU Hongjun , BAI Xiaohu , YU Jinzhu , et al . Research and application of enhancing net-pressure fracturing technology for tight oil reservoirs in Changqing Oilfield [J ] . Drilling & Production Technology , 2024 , 47 ( 6 ): 37 - 43 .

文章被引用时，请邮件提醒。

提交

煤矿区煤层气开发技术应用现状及展望

复杂人工裂缝产状页岩气藏多段压裂水平井产能评价

基于模糊层次分析法的页岩气井产能影响因素分析及综合评价模型——以四川盆地焦石坝页岩气田为例