Special Oil & Gas Reservoirs >

2023 , Vol. 30 >Issue 3: 168 - 174

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.03.022

Drilling & Production Engineering

Optimized Design of Fracturing Parameters for New Wells in Formation Deficit Zone of Tight Conglomerate Reservoir

  • Li Jie ,
  • Ma Mingwei ,
  • Yang Shengfeng ,
  • Wang Song ,
  • Li Yunzhe ,
  • Xu Peng ,
  • Li Jiye
Expand
  • 1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000,China;
    2. Beijing Sunshine GEO-Tech Co., Ltd., Beijing 100192, China;
    3. PetroChina Huabei Oilfield Company,Langfang,Hebei 065000,China

Received date: 2022-08-31

  Revised date: 2023-02-15

  Online published: 2023-07-13

Fold

Abstract

To address the problem that the energy deficit of the old well formation has an impact on the reservoir stimulation and production of the new well, a numerical model of the reservoir is established on the basis of a three-dimensional geological and ground stress model, the dynamic change law of the stress field of the old well is studied in combination with the production data, the characteristics of the fracture pattern of the new well are predicted based on the fracture propagation model, and the fracturing design parameters are optimized. The study shows that the ground stress area caused by the development of old wells has an induced effect on the fracture propagation of neighboring wells, and optimizing the ratio of the front fluid in new wells can compensate for the formation energy deficit, avoid the artificial fracture in new wells from extending excessively in the deficit direction, so that the reservoir stimulation is more adequate and post-fracturing capacity is more desirable. The example application of Well Group H1 in the Mahu conglomerate reservoir shows that the preferred cluster spacing is 25-30 m, the fluid intensity used is 18 m3/m, and the single cluster pad fluid volume is 400 m3, which can effectively inhibit the induction of artificial fractures in new wells by low stress zones and improve the proppant placement concentration. This study has important guidance for the development of similar conglomerate reservoirs.

Key words： dynamic ground stress field; formation deficit; inter-well interference; fracturing optimization; tight reservoir

Cite this article

Li Jie , Ma Mingwei , Yang Shengfeng , Wang Song , Li Yunzhe , Xu Peng , Li Jiye . Optimized Design of Fracturing Parameters for New Wells in Formation Deficit Zone of Tight Conglomerate Reservoir[J]. Special Oil & Gas Reservoirs, 2023 , 30(3) : 168 -174 . DOI: 10.3969/j.issn.1006-6535.2023.03.022

References

[1] 马新华.非常规天然气“极限动用”开发理论与实践[J].石油勘探与开发,2021,48(2):326-336.
MA Xinhua.“Extreme utilization”development theory of unconventional natural gas[J].Petroleum Exploration and Development,2021,48(2):326-336.
[2] 郭红鑫,程林松,王鹏,等.碳酸盐岩油藏不同裂缝产状岩心水驱油实验及水驱规律[J].油气地质与采收率,2022,29(6):105-112.
GUO Hongxin,CHENG Linsong,WANG peng,et al.Water flooding experiment and law of carbonate reservoir cores with different fracture occurrences[J].Petroleum Geology and Recovery Efficiency,2022,29(6):105-112.
[3] 郭旭洋,金衍,黄雷,等.页岩油气藏水平井井间干扰研究现状和讨论[J].石油钻采工艺,2021,43(3):348-367.
GUO Xuyang,JIN Yan,HUANG Lei,et al.Research status and discussion of horizontal well interference in shale oil and gas reservoirs[J].Oil Drilling & Production Technology,2021,43(3):348-367.
[4] 滕小兰,邱玲.调整井压裂井间干扰实例分析及技术对策[J].石油钻采工艺,2011,33(2):88-90.
TENG Xiaolan,QIU Ling.Example analysis and technical measures for wells interference in adjustment well fracturing[J].Oil Drilling & Production Technology,2011,33(2):88-90.
[5] 孙玉平,陆家亮,万玉金,等.基于蒙特卡洛原理的低渗致密砂岩气藏井间干扰概率模拟方法研究[J].科学技术与工程,2016,16(33):40-45.
SUN Yuping,LU Jialiang,WAN Yujin,et al.Research on probability simulation method for well interference of tight sand gas reservoir based on Metro Carlo[J].Science Technology and Engineering,2016,16(33):40-45.
[6] 杜现飞,李建山,齐银,等.致密厚油层斜井多段压裂技术[J].石油钻采工艺,2012,34(4):61-63.
DU Xianfei,LI Jianshan,QI Yin,et al.Multi-stage fracturing technique in deviated wells of tight thick oil reservoirs[J].Oil Drilling & Production Technology,2012,34(4):61-63.
[7] 曾青冬,姚军.基于扩展有限元的页岩水力压裂数值模拟[J].应用数学和力学,2014,35(11):1239-1248.
ZENG Qingdong,YAO Jun.Numerical simulation of shale hydraulic fracturing based on the extended finite element method[J].Applied Mathematics and Mechanics,2014,35(11):1239-1248.
[8] 李玉伟,艾池,张博文,等.同步压裂对井间裂缝特性的影响[J].断块油气田,2013,20(6):779-782.
LI Yuwei,AI Chi,ZHANG Bowen,et al.Influence of synchronous fracturing on interwell fracture characteristics[J].Fault-Block Oil & Gas Field,2013,20(6):779-782.
[9] GUPTA J,ZIELONKA M,ALBERT R A,et al.Integrated methodology for optimizing development of unconventional gas resources[C].SPE152224-MS,2012:1-22.
[10] LIN Botao,SHI Can,ZHUANG Li,et al.Study on fracture propagation behavior in ultra-heavy oil reservoirs based on true triaxial experiments[J].Petroleum Exploration and Development,2020,47(3):608-616.
[11] GUO X,WU K,AN C,et al.Numerical investigation of effects of subsequent parent well injection on interwell fracturing interference using reservoir-geomechanics-fracturing modeling[J].SPE Journal,2019,24(4):1884-1902.
[12] 曾慧勇,陈立峰,陈亚东,等. 压裂-驱油一体化工作液研究进展[J].油气地质与采收率,2022,29(3):162-170.
ZENG Huiyong,CHEN Lifeng,CHEN Yadong,et al. Research progress on fracturing-oil displacement integrated working fluid[J].Petroleum Geology and Recovery Efficiency,2022,29(3):162-170.
[13] 张凤远,邹林君,崔维,等. 基于压裂液返排数据的页岩油气藏裂缝参数反演方法[J]. 东北石油大学学报,2022,46(1):76-87.
ZHANG Fengyuan,ZOU Linjun,CUI Wei,et al. Inverse method based on fracturing fluid flowback data for estimating fracture properties in shale reservoirs[J]. Journal of Northeast Petroleum University,2022,46(1):76-87.
[14] 刘子军. 基于Pearson 相关系数的低渗透砂岩油藏重复压裂井优选方法[J].油气地质与采收率,2022,29(2):140-144.
LIU Zijun. Method for selecting repeated fracturing wells in low-permeability sandstone reservoirs based on Pearson correlation coefficient[J].Petroleum Geology and Recovery Efficiency,2022,29(2):140-144.
[15] 黑创,罗明璋,邹骁. 基于井孔散射波能量的水力压裂效果评价方法[J].长江大学学报(自然科学版),2021,18(3):14-20.
HEI Chuang,LUO Mingzhang,ZOU Xiao. Evaluation methods of the hydraulic fracturing effect based on the energy of borehole scattered wave [J].Journal of Yangtze University (Natural Science Edition),2021,18(3):14-20.
[16] 闵超,张馨慧,杨兆中,等.基于CBFS-CV算法的煤层气井压裂效果主控因素识别[J].油气地质与采收率,2022,29(1):168-174.
MIN Chao,ZHANG Xinhui,YANG Zhaozhong,et al.Identification of main controlling factors of fracturing performance in coalbed methane wells based on CBFS-CV algorithm[J].Petroleum Geology and Recovery Efficiency,2022,29(1):168-174.
[17] 徐中一,方思冬,张彬,等.页岩气体积压裂水平井试井解释新模型[J].油气地质与采收率,2020,27(3):120-128.
XU Zhongyi,FANG Sidong,ZHANG Bin,et al.A new well test model for horizontal wells by stimulated reservoir volume in shale gas reservoirs[J]. Petroleum Geology and Recovery Efficiency,2020,27(3):120-128.
[18] 郑臣,汪道兵,秦浩,等. 粗糙裂缝压裂暂堵剂运移规律数值模拟[J]. 东北石油大学学报,2022,46(1):88-103.
ZHENG Chen,WANG Daobing,QIN Hao,et al. Numerical simulation of temporary plugging agent transport in rough fracture[J]. Journal of Northeast Petroleum University,2022,46(1):88-103.
[19] 王萌,杨胜来,旷年杰,等.低渗油藏穿层压裂水平井非线性渗流产能模型[J].非常规油气,2023,10(2):43-48.
WANG Meng,YANG Shenglai,KUANG Nianjie,et al.Nonlinear percolation productivity model of fractured horizontal well in low permeability reservoir[J].Unconventional Oil & Gas,2023,10(2):43-48.
[20] 纪国法,丁江,张琦,等.考虑滑移效应的页岩基质纳米孔隙中压裂液滤失速度分形计算新模型[J].长江大学学报(自然科学版),2022,19(1):86-91.
JI Guofa,DING Jiang,ZHANG Qi,et al.A new fractal model for calculating filtration rate of fracturing fluid in shale matrix nanopores considering slippage effect [J]. Journal of Yangtze University (Natural Science Edition),2022,19(1):86-91.
[21] 张万春,郭布民,孔鹏,等.柿庄南煤层气重复压裂裂缝形态反演及效果分析评价[J].非常规油气,2022,9(1):119-128.
ZHANG Wanchun,GUO Bumin,KONG Peng,et al.Fracture morphology inversion and effect evaluation of CBM refracturing in southern Shizhuang Block[J].Unconventional Oil & Gas,2022,9(1):119-128.
Options
Outlines

/

〈 〉