An Improved Multicomponent Diffusion Model for Compositional Simulation of Fractured Unconventional Reservoirs

平流 断裂(地质) 基质(化学分析) 焊剂(冶金) 扩散 流量(数学) 地质学 材料科学 机械 岩土工程 热力学 物理 复合材料 冶金
作者
Ye Tian,Chi Zhang,Zhengdong Lei,Xiaolong Yin,Hossein Kazemi,Yu‐Shu Wu
出处
期刊:Spe Journal [Society of Petroleum Engineers]
卷期号:26 (05): 3316-3341 被引量:19
标识
DOI:10.2118/204010-pa
摘要

Summary Most simulators currently use the advection/diffusion model (ADM), where the total flux comprises Darcian advection and Fickian diffusion. However, significant errors can arise, especially for modeling diffusion processes in fractured unconventional reservoirs, if diffusion is modeled by the conventional Fick’s law using molar concentration. Hence, we propose an improved multicomponent diffusion model for fractured reservoirs to better quantify the multiphase multicomponent transport across the fracture/matrix interface. We first give a modified formulation of the Maxwell-Stefan (MS) equation to model the multicomponent diffusion driven by the chemical potential gradients. A physics-based modification is proposed for the ADM in fractured reservoirs, where fracture, matrix, and their interface are represented by three different yet interconnected flow domains to honor the flux continuity at the fracture/matrix interface. The added interface using a more representative fluid saturation and composition of the interface can hence better capture the transient mass fluxes between fracture and matrix. The proposed approach is also implemented in an in-house compositional simulator. The multicomponent diffusion model is validated with both intraphase and interphase diffusion experiments. Then, the improved model for fracture/matrix interaction is compared with a fine-grid model. The proposed multiple interacting continua (MINC) model with three continua (MINC3) can better match the fine-grid model’s result than the double-porosity (DP) model, which only obtains a fair match at an early time. Then, we simulate a gas huff ‘n’ puff (HnP) well in the Permian Basin to investigate the effect of diffusion within the fractured tight oil reservoir. The simulation reveals that diffusion has a minor effect on the performance of depletion when oil is the dominant phase. For gas HnP, the simulation neglecting diffusion will underestimate the oil recovery factor (RF) but overestimate the gas rate. The DP approach tends to overestimate the RF of heavy components but leads to a similar cumulative oil RF compared with MINC3. With the diffusion included in the simulation, gas HnP performance becomes more sensitive to the soaking time than the model without diffusion. Although increasing the soaking time will lead to a higher RF after considering diffusion, the incremental oil is not sufficiently large to justify a prolonged soaking time.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
姆姆没买完成签到 ,获得积分10
1秒前
zyb完成签到 ,获得积分10
3秒前
猪肉水饺发布了新的文献求助10
4秒前
白蓝红完成签到,获得积分10
5秒前
端庄的萝完成签到,获得积分10
5秒前
魔幻的妖丽完成签到 ,获得积分10
6秒前
郑雅柔完成签到 ,获得积分0
6秒前
7秒前
科研小石完成签到 ,获得积分10
7秒前
思源应助科研通管家采纳,获得10
11秒前
科研通AI2S应助科研通管家采纳,获得10
11秒前
猪肉水饺完成签到,获得积分10
11秒前
lisa完成签到 ,获得积分10
17秒前
lzq完成签到 ,获得积分10
20秒前
滴滴哒完成签到,获得积分10
25秒前
喵喵7完成签到 ,获得积分10
25秒前
牛马完成签到,获得积分10
30秒前
谨慎鹏涛完成签到 ,获得积分10
43秒前
Jessie完成签到 ,获得积分10
47秒前
50秒前
丽丽完成签到,获得积分10
1分钟前
1分钟前
坐宝马吃地瓜完成签到 ,获得积分10
1分钟前
1分钟前
烟花应助拾陆采纳,获得10
1分钟前
伶俐绿柏完成签到 ,获得积分10
1分钟前
研友_VZG7GZ应助Ilyas0525采纳,获得10
1分钟前
1分钟前
禾页完成签到 ,获得积分10
1分钟前
CorisKen应助端庄的萝采纳,获得20
1分钟前
打打应助Ilyas0525采纳,获得10
2分钟前
晁子枫完成签到 ,获得积分10
2分钟前
张希伦完成签到 ,获得积分10
2分钟前
Emma发布了新的文献求助80
2分钟前
2分钟前
科目三应助Ilyas0525采纳,获得10
2分钟前
DeepLearning发布了新的文献求助10
2分钟前
Jasmineyfz完成签到 ,获得积分10
2分钟前
2分钟前
Ilyas0525完成签到,获得积分10
2分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990836
求助须知:如何正确求助?哪些是违规求助? 3532241
关于积分的说明 11256631
捐赠科研通 3271100
什么是DOI,文献DOI怎么找? 1805313
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809236