Journal of Petroleum and Gas Engineering最新文献_第2页

Concept of complete CO2 capture from natural gas inside exploration wells and its storage in rock reservoirs 探井内天然气完全捕获二氧化碳并将其储存在岩石储层中的概念

Journal of Petroleum and Gas Engineering Pub Date : 2019-08-31 DOI: 10.5897/jpge2019.0316

Marco Ludovico-Marques

引用次数: 1

Optimizing oil recovery using new inflow-control devices (ICDs) skin equation 利用新型流入控制装置(icd)表皮方程优化原油采收率

Journal of Petroleum and Gas Engineering Pub Date : 2019-06-30 DOI: 10.5897/JPGE2018.0294

C. Uche, B. Obah, S. Onwukwe, C. Anyadiegwu

{"title":"Optimizing oil recovery using new inflow-control devices (ICDs) skin equation","authors":"C. Uche, B. Obah, S. Onwukwe, C. Anyadiegwu","doi":"10.5897/JPGE2018.0294","DOIUrl":"https://doi.org/10.5897/JPGE2018.0294","url":null,"abstract":"Inflow-control devices (ICDs) were developed to avoid coning problems in long horizontal wells mainly in heterogenous formations, but cause some additional drawdown which does not contribute to rate increase. This rate reduction is seen to be impairment to the productivity of horizontal wells. Therefore, horizontal wells that are equipped with ICDs require a pre-quantification of their productivity by determining skin caused by each ICD nozzle size. This will help prevent additional expenditure that will be spent for a corrective horizontal well intervention. Many authors have proposed equations that can be used to estimate skin due to damage, partial completion, slanted well and perforation. No author has provided a skin equation that can be used to estimate recoverable and productivity loss that may result from the use of inflow control devices. In this work, a 3D numerical model which includes inflow control devices along horizontal wells was used to investigate reservoir and production performances of various ICD nozzle sizes. Different productivity losses from different nozzle sizes were seen as skin and a 0.002ft2 ICD nozzle flow area estimated to have a zero skin. Consequently, a simple equation for calculating this skin due to restricted fluid entry through ICD nozzles was derived. The derived equation which shows insignificant deviation from skin equation is then used for selecting the right nozzle size for production and recovery optimization from horizontal wells. \u0000 \u0000 Key words: Inflow control device","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122847672","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

Quantitative research on the influence of interlayer to thermal recovery horizontal wells in thick oil reservoir 层间对稠油油藏热采水平井影响的定量研究

Journal of Petroleum and Gas Engineering Pub Date : 2019-03-31 DOI: 10.5897/JPGE2018.0303

Dong Liu, Zongfei Liu, Junting Zhang, Jian-min Zhu, Lilei Wang

{"title":"Quantitative research on the influence of interlayer to thermal recovery horizontal wells in thick oil reservoir","authors":"Dong Liu, Zongfei Liu, Junting Zhang, Jian-min Zhu, Lilei Wang","doi":"10.5897/JPGE2018.0303","DOIUrl":"https://doi.org/10.5897/JPGE2018.0303","url":null,"abstract":"At present, the effect of different development patterns of interlayer like the length and the longitudinal position of interlayer on thermal recovery modes such as steam stimulation (CSS) and steam flooding (SF) is still a qualitative understanding, and there is no systematic study yet. Therefore, it is difficult to control the thermal production of thick oil reservoirs according to different interlayer patterns. In order to quantitatively analyze the influence of interlayer distribution pattern on steam huff and puff and steam flooding of horizontal wells in thick heavy oil reservoir, a numerical simulation model was established based on typical parameters of LD21 heavy oil reservoir in Bohai in China. Through comparison and research on the different modes of development longitudinal position, development length and development scale in non-permeable interlayer and semi-permeable interlayer. The influence of interlayer on the expansion law of steam chamber and ultimate oil recovery degree during steam huff and puff and steam flooding, and the main controlling factors of interlayer influencing oil recovery were obtained. The research results can be used for reference to optimize the location of thermal wells in thick heavy oil reservoir and reduce the influence of interlayer on thermal production effect of horizontal wells. \u0000 \u0000 Key words: Heavy oil reservoir; interlayer; steam huff and puff; steam flooding; recovery.","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129826608","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

Prediction of the water saturation around wells with bottom water drive using artificial neural networks 基于人工神经网络的底水驱井含水饱和度预测

Journal of Petroleum and Gas Engineering Pub Date : 2019-03-31 DOI: 10.5897/JPGE2018.0299

Muhammad Alrumah, T. Ertekin

{"title":"Prediction of the water saturation around wells with bottom water drive using artificial neural networks","authors":"Muhammad Alrumah, T. Ertekin","doi":"10.5897/JPGE2018.0299","DOIUrl":"https://doi.org/10.5897/JPGE2018.0299","url":null,"abstract":"This study is concerned with the water coning phenomenon that takes place around production wells of hydrocarbon reservoirs. In this paper, the development of artificial neural networks to predict the water saturation buildup around vertical and horizontal wells with a good level of accuracy is described. In the development of expert systems, it is assumed that water encroachment originates from an active aquifer which is located under the hydrocarbon reservoir (reservoir with bottom water drive). A high-fidelity numerical model is utilized in generating training data sets that are used in structuring and training the artificial neural networks. The artificial expert systems that are developed in this paper are universal and are capable of predicting the change of water saturation around the wellbore as a function of time and the prediction process is faster than a reservoir simulator and requires less data, which saves time and effort. With the help of these models, it will be possible to predict the position of high water saturation zones around the wellbore ahead of time so that remedial actions such as closing the perforations that produce the water can be implemented on a timely basis. \u0000 \u0000 Key words: Bottom water drive, water coning, neural network, water saturation, vertical well, horizontal well.","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121841062","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: 5

Analysis of shaly sand reservoir rocks in the eastern Niger Delta Basin using geophysical well logs 尼日尔三角洲盆地东部泥质砂岩储层地球物理测井分析

Journal of Petroleum and Gas Engineering Pub Date : 2019-01-31 DOI: 10.5897/JPGE2018.0300

K. Fozao, A. D. Lordon, E. A. Ali, C. M. Agying, D. Ndeh, M. K. Z. Djuka

{"title":"Analysis of shaly sand reservoir rocks in the eastern Niger Delta Basin using geophysical well logs","authors":"K. Fozao, A. D. Lordon, E. A. Ali, C. M. Agying, D. Ndeh, M. K. Z. Djuka","doi":"10.5897/JPGE2018.0300","DOIUrl":"https://doi.org/10.5897/JPGE2018.0300","url":null,"abstract":"Shales in the reservoir causes complications for the petrophysicist because they generally are conductive and mask the high resistance characteristic of hydrocarbons. Data from a suite of well logs were used to estimate the effect of reservoir shaliness on petrophysical parameters of some reservoir rocks of the eastern Niger Delta Basin. The log section was digitized using Neuralog software. Delineation of the productive clean and dirty formations, as well as mapping of the fluid contents of the possible reservoir zones was carried out using Interactive Petrophysics software. Fifteen shaly sand bodies were identified. It was observed that, shale correction leads to a significant change in petrophysical parameters. The results obtained indicate that, the Simandoux and Indonesian models used for the study are both suitable for water saturation, and hydrocarbon saturation analysis in shaly sands of this part of the Basin. The porosity results for the Indonesian and Simandoux models gave, respectively 0.14-0.23 and 0.22-0.28, while the hydrocarbon saturation results are 0.650-0.908 and 0.650-0.911 with permeabilities values of 1487.442-8881.697 mD and 1568.532-7451.592 mD for uncorrected and corrected permeability, respectively. Thomas-Stieber model shows that shale distribution in sands of the eastern Niger Delta Basin is mainly structural with few of disperse and laminar ones. \u0000 \u0000 Key words: Reservoir rock, Shaly sands, petrophysical parameters, well logs, models.","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132478977","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: 4

Experimental study and field application of surfactant-polymer flooding in offshore oilfield 海上油田表面活性剂-聚合物驱试验研究及现场应用

Journal of Petroleum and Gas Engineering Pub Date : 2018-08-31 DOI: 10.5897/jpge2018.0285

Hongying Li, Xinran Wang, Zongbin Liu, Dong Liu, Bin Liu

引用次数: 2

Experimental analysis on rheological and fluid loss control of water-based mud using new additives 新型添加剂对水基泥浆流变性及降滤失的实验分析

Journal of Petroleum and Gas Engineering Pub Date : 2018-07-31 DOI: 10.5897/JPGE2017.0279

B. Biltayib, M. Rashidi, Saad Balhasan, Reem Alothman, Mufazzal S. Kabuli

{"title":"Experimental analysis on rheological and fluid loss control of water-based mud using new additives","authors":"B. Biltayib, M. Rashidi, Saad Balhasan, Reem Alothman, Mufazzal S. Kabuli","doi":"10.5897/JPGE2017.0279","DOIUrl":"https://doi.org/10.5897/JPGE2017.0279","url":null,"abstract":"There have been many improvements on the drilling fluids due to the increased amount of environmental and safety concerns. Decreasing the amount of toxic additives found in the drilling fluid can help to reduce the environmental impact. It is very important to have an in depth knowledge of all the properties of drilling fluids in order to design an effective mud. This is because drilling fluids can have great variations in different properties such as rheology, fluid loss, density, viscosity, pH etc. Various effective additives can be used to change the properties of the mud as required. In light of the above fact, new additives have been introduced and the purpose of this research is to test these new additives used in drilling fluids as well as to understand the effect of these additives on the properties of the drilling fluid such as filtration rate, filter cake thickness, pH, and viscosity in order to improve the drilling performance. The new additives used in this experiment are rice husk ash (RHA), hay barn (HB) and hay barn ash (HBA). Initially, an experiment is conducted to understand the rheological properties of these additives before adding them to the mud. Later, different percentage of these additives is added into the plain mud at different temperatures and pressures and various tests are performed based on API standards. \u0000 \u0000 Key words: Rice husk, rice ash, hay barn.","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114428835","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: 5

Experimental investigation of impact of low salinity surfactant flooding for enhance oil recovery: Niger Delta field application 低矿化度表面活性剂驱油提高采收率影响的实验研究:尼日尔三角洲油田应用

Journal of Petroleum and Gas Engineering Pub Date : 1900-01-01 DOI: 10.5897/jpge2019.0333

Nkemakolam Chinedu Izuwa, N. Nwogu, C. C. Williams, K. K. Ihekoronye, N. Okereke, M. I. Onyejekwe

{"title":"Experimental investigation of impact of low salinity surfactant flooding for enhance oil recovery: Niger Delta field application","authors":"Nkemakolam Chinedu Izuwa, N. Nwogu, C. C. Williams, K. K. Ihekoronye, N. Okereke, M. I. Onyejekwe","doi":"10.5897/jpge2019.0333","DOIUrl":"https://doi.org/10.5897/jpge2019.0333","url":null,"abstract":"Oil reserves in the Niger Delta have been gradually decreasing due to the increased production. New large field discoveries are scarce, thus there is need to improve on the production from existing reserves. Low salinity surfactant flooding (LSSF) is a potential enhanced oil recovery process to increase oil production in the Niger Delta oil fields. In this study, sodium dodecyl sulphate and ethanol were used as surfactant to study the significance of the surfactants on oil recovery. Sand packs were used as formation sample in the laboratory. This was soaked with oil of 24.36° API and specific gravity of 0.9436. Low salinity water was used as a displacing fluid in the secondary recovery mechanism. However, sodium dodecyl sulphate and ethanol (78% vol.) was introduced into the sand packs. The sodium dodecyl sulphate reduced the interfacial tension as obtained using tensiometer machine. Ethanol was used in the second case as surfactant. The result of the work shows that sodium dodecyl sulphate had oil recovery of 16.1, 16.9, 19.0 and 19.3% respectively at different surfactant concentrations 0.2, 0.3, 0.35and 0.38% wt. respectively; while ethanol (78% vol.) had oil recovery of 1.5%. The study noted that sodium dodecyl sulphate is a good surfactant for enhanced oil recovery for crude oil with the specified API gravity. In addition, interfacial tension reduction and change in rock wettability were the working mechanisms for the sodium dodecyl sulphate to increases oil recovery from reservoirs. The work showed that sodium dodecyl sulphate maintained low interfacial tension through the flood process.","PeriodicalId":332748,"journal":{"name":"Journal of Petroleum and Gas Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127893434","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