Special Oil & Gas Reservoirs >

2025 , Vol. 32 >Issue 3: 86 - 93

DOI: https://doi.org/10.3969/j.issn.1006-6535.2025.03.010

Reservoir Engineering

Prediction method for water invasion in carbonate gas reservoir with bottom water before water breakthrough

  • PANG Jin ,
  • HUO Yuchen ,
  • XU Shenhao ,
  • CHEN Lin ,
  • OU Jiaqiang ,
  • YANG Yang ,
  • KONG Xiangling
Expand
  • 1. Chongqing University of Science & Technology,Chongqing 401331,China;
    2. Central-North Sichuan Gas Production Management Office,PetroChina Southwest Oil & Gas field Company,Suining,Sichuan 629000,China;
    3. PetroChina Liaohe Oilfield Company,Panjin,Liaoning 124010,China

Received date: 2024-02-19

  Revised date: 2025-02-17

  Online published: 2025-07-08

Fold

Abstract

To address the poor applicability of existing methods for predicting water invasion and evaluating aquifer activity in carbonate gas reservoirs with bottom water before water breakthrough,the reservoir characteristics and water invasion behaviors of such reservoirs were systematically analyzed.A mathematical model for bottom-water coning in carbonate gas reservoirs with bottom water was developed,incorporating derived formulas for calculating breakthrough time and water cone height.The morphological evolution of water cones at different production stages was characterized,enabling prediction of water invasion volume and water drive index before gas well breakthrough.The research results are applied to the Well PT102 in the Deng-2 gas reservoir of the Penglai Gasfield in central Sichuan, indicating that this method combines theoretical derivation with practical application,achieving dynamic description and quantitative prediction of water invasion before gas well water breakthrough,and solves the problem of early water invasion prediction in gas wells,addressing the insufficient accuracy and applicability of traditional methods.The predicted water breakthrough time is 169 days,with an absolute error of only 8 days (relative error 4.5%) compared to the measured value of 177 days.The water invasion volume before water breakthrough reaches 2.52×104 m3,and the water drive index stabilizes at 0.30,verifying the model′s reliability.Reasonably reducing gas well production can effectively delay the water breakthrough time and significantly suppress the degree of water invasion.When the gas well production is reduced by 25%,the water breakthrough time can be delayed by about 24%,the cumulative water invasion volume is reduced by 18.4%,and the water drive index decreases from 0.30 to 0.27,indicating a significant suppression of water body activity.The research results fill the gap in early water invasion prediction methods for carbonate gas reservoirs with bottom water before water breakthrough and provide a reference for optimizing production allocation in similar gas reservoirs.

Key words： gas reservoirs with bottom water; coning; carbonate; water invasion prediction; water body activity; early water invasion; Penglai Gasfield

Cite this article

PANG Jin , HUO Yuchen , XU Shenhao , CHEN Lin , OU Jiaqiang , YANG Yang , KONG Xiangling . Prediction method for water invasion in carbonate gas reservoir with bottom water before water breakthrough[J]. Special Oil & Gas Reservoirs, 2025 , 32(3) : 86 -93 . DOI: 10.3969/j.issn.1006-6535.2025.03.010

References

[1] 李阳,康志江,薛兆杰,等.中国碳酸盐岩油气藏开发理论与实践[J].石油勘探与开发,2018,45(4):669-678.
LI Yang,KANG Zhijiang,XUE Zhaojie,et al.Theories and practices of carbonate reservoirs development in China[J].Petroleum Exploration and Development,2018,45(4):669-678.
[2] 邹才能,杜金虎,徐春春,等.四川盆地震旦系—寒武系特大型气田形成分布、资源潜力及勘探发现[J].石油勘探与开发,2014,41(3):278-293.
ZOU Caineng,DU Jinhu,XU Chunchun,et al.Formation,distribution,resource potential and discovery of the Sinian- Cambrian giant gas field,Sichuan Basin,SW China[J].Petroleum Exploration and Development,2014,41(3):278-293.
[3] 刘念肖,王作豪,闵春荣,等.裂缝为孔隙型有水气藏开发数值模拟研究[J].天津化工,2022,36(1):99-102.
LIU Nianxiao,WANG Zuohao,MIN Chunrong,et al.Study on numerical simulation for the development of fractured-porous water-bearing gas reservoirs[J].Tianjin Chemical Industry,2022,36(1):99-102.
[4] 贾爱林,闫海军.不同类型典型碳酸盐岩气藏开发面临问题与对策[J].石油学报,2014,35(3):519-527.
JIA Ailin,YAN Haijun.Problems and countermeasures for various types of typical carbonate gas reservoirs development[J].Acta Petrolei Sinica,2014,35(3):519-527.
[5] 潘政屹,徐凌,张黎,等.全球深层碳酸盐岩气藏勘探现状与开发特征[J].中国石油大学胜利学院学报,2022,36(3):1-12.
PAN Zhengyi,XU Ling,ZHANG Li,et al.Characteristics of exploration and development for global deep carbonate gas reservoirs[J].Journal of Shengli College China University of Petroleum,2022,36(3):1-12.
[6] 阮基富,庞进,袁权,等.安岳气田磨溪区块深层含水碳酸盐岩气藏驱动能量变化规律[J].特种油气藏,2021,28(2):83-88.
RUAN Jifu,PANG Jin,YUAN Quan,et al.Variation rules of driving energy of deep aqueous carbonate gas reservoirs in Moxi Block of Anyue Gas Field[J].Special Oil & Gas Reservoirs,2021,28(2):83-88.
[7] 刘华勋,高树生,叶礼友,等.裂缝为孔隙型有水气藏水侵动态变化规律及关键参数计算方法[J].天然气工业,2020,40(6):90-99.
LIU Huaxun,GAO Shusheng,YE Liyou,et al.Change laws of water invasion performance in fractured-porous water-bearing gas reservoirs and key parameter calculation methods[J].Natural Gas Industry,2020,40(6):90-99.
[8] 闫海军,贾爱林,郭建林,等.龙岗礁滩型碳酸盐岩气藏气水控制因素及分布模式[J].天然气工业,2012,32(1):67-70,124.
YAN Haijun,JIA Ailin,GUO Jianlin,et al.Gas-water controlling factors and distribution models of reef flat carbonate rock gas reservoirs in the Longgang Gas Field,Sichuan Basin[J].Natural Gas Industry,2012,32(1):67-70,124.
[9] 方建龙.碳酸盐岩缝洞底水气藏渗流特征与开发技术对策研究[D].成都:西南石油大学,2016.
FANG Jianlong.Research on seepage characteristics and development technique strategy for fractured-vuggy carbonate reservoirs with bottom water[D].Chengdu:Southwest Petroleum University,2016.
[10] 任绍才.杏西油田南块边部天然水体能量评价方法研究[J].化学工程与装备,2017,46(2):130-133.
REN Shaocai.Research on energy evaluation method of natural water body in south block edge of Xingxi Oilfield[J].Chemical Engineering & Equipment,2017,46(2):130-133.
[11] 李占春,程家胜,门春娟,等.有水气藏水侵量计算方法[J].石化技术,2021,28(6):87-88.
LI Zhanchun,CHENG Jiasheng,MEN Chunjuan,et al.Calculation method of water influx in gas reservoir with water[J].Petrochemical Industry Technology,2021,28(6):87-88.
[12] 王刚,缪飞飞,杨东东,等.天然能量水体评价方法及实例应用[J].石油化工应用,2018,37(8):45-48.
WANG Gang,MIAO Feifei,YANG Dongdong,et al.Evaluation method and application of naturel energy water volumetric[J].Petrochemical Industry Application,2018,37(8):45-48.
[13] 杨丽娟,张明迪,王本成,等.基于数值模拟的生物礁气藏地层水分布研究[J].西南石油大学学报(自然科学版),2020,42(5):118-126.
YANG Lijuan,ZHANG Mingdi,WANG Bencheng,et al.Numerical simulation of water distribution of bio-reef gas reservoir[J].Journal of Southwest Petroleum University(Science & Technology Edition),2020,42(5):118-126.
[14] 邓惠,杨胜来,刘义成,等.缝洞型碳酸盐岩底水气藏水侵规律预测新方法[J].天然气勘探与开发,2023,46(2):37-43.
DENG Hui,YANG Shenglai,LIU Yicheng,et al.A new method for predicting water-invasion laws in fractured-vuggy carbonate gas reservoirs with bottom water[J].Natural Gas Exploration and Development,2023,46(2):37-43.
[15] 常宝华,李世银,曹雯,等.缝洞型碳酸盐岩油气藏关键开发指标预测方法及应用[J].特种油气藏,2021,28(2):72-77.
CHANG Baohua,LI Shiyin,CAO Wen,et al.Prediction method of key development indicators of fracture-cavity carbonate reservoirs and its application[J].Special Oil & Gas Reservoirs,2021,28(2):72-77.
[16] 邓勇,李鹴,李进.裂缝型底水气藏水侵动态研究[J].特种油气藏,2016,23(4):93-95,155.
DENG Yong,LI Shuang,LI Jin.Water invasion performance of fractured gas reservoir with bottom-aquifer[J].Special Oil & Gas Reservoirs,2016,23(4):93-95,155.
[17] 陈军,刘太雷.底水气藏气井水锥动态模拟及见水时间预测[J].大庆石油地质与开发,2019,38(1):84-88.
CHEN Jun,LIU Tailei.Modeling of the water coning dynamics and the prediction of the water breakthrough time for the gas well in bottom-water gas reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(1):84-88.
[18] 黄全华,陆云,付云辉,等.考虑非达西效应的底水气藏见水时间预测方法[J].科学技术与工程,2016,16(14):137-140.
HUANG Quanhua,LU Yun,FU Yunhui,et al.An approach to predict water breakthrough time of gas reservoirs with bottom water in consideration of non-darcy flow[J].Science Technology and Engineering,2016,16(14):137-140.
[19] 张庆辉,李相方,袁海菊,等.考虑非达西的半球面流气井产能公式推导[J].油气藏评价与开发,2011,1(5):24-28.
ZHANG Qinghui,LI Xiangfang,YUAN Haiju,et al.Deliverability equation derivation of semi-spherical flow gas wells considering non-Darcy flow[J].Reservoir Evaluation and Development,2011,1(5):24-28.
[20] 赵俊威,陈恭洋,赵星,等.川西新场地区须二段致密砂岩气藏气水分布特征及主控因素[J].断块油气田,2024,31(3):379-386.
ZHAO Junwei,CHEN Gongyang,ZHAO Xing,et al.Gas water distribution characteristics and main controlling factors of tight sandstone gas reservoir in the Second Member of Xujiahe Formation in Xinchang Area,western Sichuan[J].Fault-Block Oil & Gas Field,2024,31(3):379-386.
[21] 赵康,陈民锋,王艺文,等.TY含水页岩气藏产量递减规律及可采储量预测[J].断块油气田,2024,31(3):395-402.
ZHAO Kang,CHEN Minfeng,WANG Yiwen,et al.Production decline rule and recoverable reserves prediction of TY water bearing shale gas reservoir[J].Fault-Block Oil & Gas Field,2024,31(3):395-402.
[22] 崔波,冯浦涌,荣新明,等.碳酸盐岩酸液注入段塞组合方式及其协同效应[J].大庆石油地质与开发,2023,42(1):100-107.
CUI Bo,FENG Puyong,RONG Xinming,et al.Combination mode and its synergistic effect of acid slug injection into carbonate rock[J].Petroleum Geology & Oilfield Development in Daqing,2023,42(1):100-107.
[23] 曹宝军,毕晓明,李胜,等.多参数回归物质平衡法在水驱气藏气井生产动态预测中的应用[J].大庆石油地质与开发,2024,43(5):62-68.
CAO Baojun,BI Xiaoming,LI Sheng,et al.Application of multi-parameters regression material balance method in production performance prediction of gas wells in water drive gas reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2024,43(5):62-68.
[24] 张钰祥,杨胜来,王蓓东,等.应用径向流产能模拟法确定超深层碳酸盐岩气藏储层物性下限:以高石梯—磨溪区块为例[J].大庆石油地质与开发,2023,42(3):75-82.
ZHANG Yuxiang,YANG Shenglai,WANG Beidong,et al.Determining ultra-deep carbonate gas reservoir property cutoffs by radial flow productivity simulation method:taking Gaoshiti-Moxi Block as an example[J].Petroleum Geology & Oilfield Development in Daqing,2023,42(3):75-82.
[25] 崔波,冯浦涌,姚二冬,等.缓速酸段塞注入酸蚀裂缝的刻蚀形态及导流规律:以伊拉克F油田低孔渗碳酸盐岩储层为例[J].大庆石油地质与开发,2023,42(4):74-80.
CUI Bo,FENG Puyong,YAO Erdong,et al.Etching geometry and conductivity of acid-etched fractures injected with retarded acid slug: Taking low-porosity and low-permeability carbonate reservoir of F Oilfield in Iraq as an example[J].Petroleum Geology & Oilfield Development in Daqing,2023,42(4):74-80.
[26] 蔡珺君,李小刚,朱文涛,等.整合测井资料的碳酸盐岩气田“一点法”产能评价方法[J].断块油气田,2023,30(2):301-307.
CAI Junjun,LI Xiaogang,ZHU Wentao,et al.“One point method” productivity evaluation method in carbonate gas field by integrating logging data[J].Fault-Block Oil & Gas Field,2023,30(2):301-307.
[27] 蔡珺君,彭先,余平,等.超深层碳酸盐岩气藏流动物质平衡新方法[J].断块油气田,2023,30(4):656-664.
CAI Junjun,PENG Xian,YU Ping,et al.New method of flowing material balance in ultra deep carbonate gas reservoirs[J].Fault-Block Oil & Gas Field,2023,30(4):656-664.
[28] 常涛,陈建波,汪跃,等.一种精细表征底水油藏全周期水淹形态的新方法[J].大庆石油地质与开发,2024,43(6):106-113.
CHANG Tao,CHEN Jianbo,WANG Yue,et al.A new method for fine characterization of full-cycle waterflooded morphology in bottom water reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2024,43(6):106-113.
[29] 唐洪明,庞榆,王锡伟,等.高孔低渗碳酸盐岩孔隙结构及控制因素[J].西南石油大学学报(自然科学版),2023,45(3):1-13.
TANG Hongming,PANG Yu,WANG Xiwei,et al.The pore structure and controlling factors of high-porosity and low-permeability carbonate[J].Journal of Southwest Petroleum University (Science & Technology Edition),2023,45(3):1-13.
Options
Outlines

/

〈 〉