Petroleum Research最新文献_第8页

Geomechanical analysis of an oil field: Numerical study of wellbore stability and reservoir subsidence 油田地质力学分析：井筒稳定性和油藏沉降的数值研究

Petroleum Research Pub Date : 2023-09-01 DOI: 10.1016/j.ptlrs.2022.08.002

Saeed Shad , Parvin Kolahkaj , Davood Zivar

{"title":"Geomechanical analysis of an oil field: Numerical study of wellbore stability and reservoir subsidence","authors":"Saeed Shad , Parvin Kolahkaj , Davood Zivar","doi":"10.1016/j.ptlrs.2022.08.002","DOIUrl":"10.1016/j.ptlrs.2022.08.002","url":null,"abstract":"<div><p>Geomechanics as the knowledge of rock deformation and stability is an indispensable part of all field development plans. Conducting geomechanical analyses leads to a safer and more efficient operation otherwise different kinds of instability and distortion might occur. In this study, the geomechanical behavior of Ilam and Sarvak formations of an oil field in southwest of Iran was investigated. The research objectives can be summarized as wellbore stability evaluation and predicting the value of reservoir subsidence due to pressure drop as a result of reservoir fluid production. To fulfill these, a set of petrophysical logs run in the exploration well of this green field were collected. Next, using empirical correlations and statistical methods, required data for evaluating wellbore stability during drilling, specifying safe mud window to discover reservoir breakdown pressure, predicting the possibility of wellbore collapse in field lifetime, and assessing reservoir subsidence were determined. The results revealed that the average subsidence value as the consequence of production within 21 years is 0.275 ft Which is not significant. In terms of wellbore stability, it was concluded that all horizontal and vertical wells remain stable during this time period. Briefly to conclude, field development is not associated with alarming incidents from geomechanical aspect.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"8 3","pages":"Pages 350-359"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47466095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Energy efficiencies and CO2 emissions associated with low-temperature separation technologies for the processing of formation fluid from the Achimov deposits 处理Achimov矿床地层流体的低温分离技术的能源效率和二氧化碳排放

Petroleum Research Pub Date : 2023-09-01 DOI: 10.1016/j.ptlrs.2022.12.001

Alexandra Saitova , Sergey Strokin , Falk Ahnert , Aleksandr Chepurnov

{"title":"Energy efficiencies and CO2 emissions associated with low-temperature separation technologies for the processing of formation fluid from the Achimov deposits","authors":"Alexandra Saitova , Sergey Strokin , Falk Ahnert , Aleksandr Chepurnov","doi":"10.1016/j.ptlrs.2022.12.001","DOIUrl":"10.1016/j.ptlrs.2022.12.001","url":null,"abstract":"<div><p>Three different technologies for the low-temperature separation (LTS) of gas condensate from the Achimov deposits in the Russian Urengoyskoe gas and condensate field were assessed using exergy analyses. The options examined included turbo-expansion and ejection. Thermomechanical exergy values were calculated for material streams and exergy losses and efficiencies were estimated for dedicated equipment used in the LTS. The lowest exergy loss of 4221.2 kW was obtained using turbo-expansion and electricity cogeneration. The carbon release associated with each scenario was calculated while considering different production rates, technological parameters and natural decreases in wellhead pressure. The integral carbon footprint after 40 years of LTS operation was estimated for all cases. A classical ejector-based LTS scheme was shown to produce 1200 t of CO<sub>2</sub> emissions over 40 years of operation. This same scheme combined with a turboexpander and electricity generator produced 59% less CO<sub>2</sub> in the same period. An expansion-cogeneration LTS scheme was found to be the most effective and ecologically friendly among the various options based on this analysis.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"8 3","pages":"Pages 413-423"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49488688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of nanoparticles, polymer and accelerator concentrations, and salinity on gelation behavior of polymer gel systems for water shut-off jobs in oil reservoirs 纳米颗粒、聚合物和促进剂浓度以及矿化度对油藏堵水作业中聚合物凝胶体系凝胶行为的影响

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2022.06.005

Shaikh Mohammad Shehbaz, Achinta Bera

{"title":"Effects of nanoparticles, polymer and accelerator concentrations, and salinity on gelation behavior of polymer gel systems for water shut-off jobs in oil reservoirs","authors":"Shaikh Mohammad Shehbaz, Achinta Bera","doi":"10.1016/j.ptlrs.2022.06.005","DOIUrl":"10.1016/j.ptlrs.2022.06.005","url":null,"abstract":"<div><p>Excess water production is one of the crucial complications in the oil industry, leading to a rapid decline in oil production. To overcome this problem, different polymer gels are used to block the water's path to reduce water production. In the present work, polymer gel systems were prepared with polymers namely partially hydrolyzed polyacrylamide (PHPA), organic crosslinkers like hexamine, and hydroquinone with the incorporation of silica and alumina nanoparticles. Nanoparticles are used to enhance the stability of the gel framework in high salinity and high temperature reservoir environment. When designing the polymer gel system, factors such as pH, thermal stability, brine composition, injection rate, and chemical concentration were considered. Concentrations of PHPA and nanoparticles were varied from 1 to 2 wt% and 0.25–1.0 wt% respectively for the preparation of different gel systems. The concentration of the organic crosslinker was extended from 5000 to 11000 ppm for investigating the effect on gelation time. Brine concentration was chosen from 2 to 8 wt% to find the impact of high salinity. Succinic acid as an accelerator was also used to study the effect on gelation time, and it was found that the gelation time is reduced as the concentration of succinic acid increases. The prepared polymer solution was taken in a test tube and was kept inside a hot air oven at 95 °C to perceive the gelation time and nature of the produced gel. Results showed that nanoparticles do not influence the gelation time, but they considerably affect gel stability. However, concentrations of polymer, accelerator, and salt (salinity) have significant effects on the gelation behavior of the gel systems.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"8 2","pages":"Pages 234-243"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48851771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Erratum regarding missing Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中遗漏竞争利益声明的勘误表

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.009

引用次数: 0

Erratum regarding missing Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中遗漏竞争利益声明的勘误表

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.010

引用次数: 0

Erratum regarding missing Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中遗漏竞争利益声明的勘误表

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.008

引用次数: 0

Controlling factors for oil production in continental shales: A case study of Cretaceous Qingshankou Formation in Songliao Basin 陆相页岩产油控制因素——以松辽盆地白垩系青山口组为例

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.003

Bo Zhou , Yuxiang Xiao , Zhengdong Lei , Rui Wang , Shuiqing Hu , Xiulin Hou

{"title":"Controlling factors for oil production in continental shales: A case study of Cretaceous Qingshankou Formation in Songliao Basin","authors":"Bo Zhou , Yuxiang Xiao , Zhengdong Lei , Rui Wang , Shuiqing Hu , Xiulin Hou","doi":"10.1016/j.ptlrs.2023.05.003","DOIUrl":"10.1016/j.ptlrs.2023.05.003","url":null,"abstract":"<div><p>Continental shale oil is widely distributed in the Cretaceous Qingshankou Formation of the Songliao Basin in Northeast China. In the Qijia-Gulong sag and the Changling sag in the Songliao Basin, breakthroughs of shale oil exploration and development have been made in the first and second members of the Qingshankou Formation, and several wells represented by Well GYYP1 have achieved high and stable shale oil production. However, some horizontal wells in shale oil development pilot test (Well groups A and D) were characterized by low shale oil production, high flowback rate and rapid production decline. Therefore, controlling factors of the shale oil production were investigated. The results show that shale oil enrichment area and optimal sweet spots are fundamental for high shale oil production, improving horizontal length and drilling ratio of sweet spots is a technical guarantee for enhancing shale oil production of single well, and artificial fracture network (incl. scale, complexity, and coupling with pre-existing geological bodies) created by fracturing is a direct factor for controlling the shale oil production. For subsequent exploration and development of the shale oil, the heterogeneity of sweet spot distribution should be carefully considered, the shale oil enrichment areas and optimal sweet spots also need be optimized, and the wellbore trajectory control and fine geological modeling techniques should be figured out. Moreover, the fracturing techniques suitable for the shale with high clay mineral content and weak brittleness should be developed, and the personalized and differentiated staged fracturing also needs to be performed, to effectively enhance single-well shale oil production and estimated ultimate recovery.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"8 2","pages":"Pages 183-191"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42672843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum regarding missing Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中遗漏竞争利益声明的勘误表

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.005

引用次数: 0

Erratum regarding missing Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中遗漏竞争利益声明的勘误表

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2023.05.007

引用次数: 0

The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir 聚合物凝胶、微球和表面活性剂的三元组合，用于控制顺性和驱油，提高强非均质油藏的采收率

Petroleum Research Pub Date : 2023-06-01 DOI: 10.1016/j.ptlrs.2022.04.002

Siqi Liu , Hu Jia , Hongshen Wang , Yanbin Liang , Duansheng Shi , Zhichong Lu , Junyi Wu

{"title":"The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir","authors":"Siqi Liu , Hu Jia , Hongshen Wang , Yanbin Liang , Duansheng Shi , Zhichong Lu , Junyi Wu","doi":"10.1016/j.ptlrs.2022.04.002","DOIUrl":"10.1016/j.ptlrs.2022.04.002","url":null,"abstract":"<div><p>The reservoir heterogeneity of Suizhong 36-1 oilfield is very obvious, the average permeability reaches 2000mD. Long-term water injection development leads to serious water channeling in high permeability layers, resulting in ineffective circulation of injected water and reduction of oil recovery. It is urgent to form an effective EOR method. In this paper, the oil displacement effect of different combination slugs including polymer gel, polymer microsphere and surfactant is evaluated by means of conformance control and chemical flooding. Three-layer heterogeneous 3-D plate model is used for oil displacement experiment. The experimental results show that the combination slug sequentially composed of polymer gel, polymer microspheres and surfactant have the best oil displacement effect with the oil recovery increment by 21.2% after the first water flooding. In addition, using the best slug combination for two rounds flooding, the recovery factor increased by 28.2% compared with the first water flooding. This paper provides some new insights for enhanced oil recovery in strong heterogeneity reservoir.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":"8 2","pages":"Pages 151-166"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46699364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2