长江油气:英文版最新文献_第2页

Simulation Studies on Comparative Evaluation of Waterflooding and Gas Injection in Niger Delta Thin-Bed Reservoir 尼日尔三角洲薄层油藏注水与注气对比评价模拟研究

长江油气:英文版 Pub Date : 2022-01-01 DOI: 10.4236/ojogas.2022.71005

U. Obibuike, A. Kerunwa, M. Udechukwu, S. Ekwueme

引用次数: 1

Study on a Polyamine-Based Anti-Collapse Drilling Fluid System 聚胺基抗塌钻井液体系的研究

长江油气:英文版 Pub Date : 2022-01-01 DOI: 10.4236/ojogas.2022.73011

Wenwu Zheng, F. Liu, Jing Han, Binbin He, Shunyuan Zhang, Qi Cao, Xiong Wang, Xintong Li

{"title":"Study on a Polyamine-Based Anti-Collapse Drilling Fluid System","authors":"Wenwu Zheng, F. Liu, Jing Han, Binbin He, Shunyuan Zhang, Qi Cao, Xiong Wang, Xintong Li","doi":"10.4236/ojogas.2022.73011","DOIUrl":"https://doi.org/10.4236/ojogas.2022.73011","url":null,"abstract":"In complex strata, oil-based drilling fluid is the preferred drilling fluid system, but its preparation cost is high, and there are hidden safety risks. Therefore, the new progress of high-performance anti-collapse water-based drilling fluid at home and abroad is analyzed. It is difficult to prevent and control the well collapse. Once the well wall instability problem occurs, it will often bring huge economic losses to the enterprises, and the underground safety accidents will occur. In order to ensure the stability of the well wall and improve the downhole safety, the key treatment agent of water-based collapse drilling fluid is selected, the anti-collapse drilling fluid system is formulated, the evaluation method of drilling fluid prevention performance is established, and a set of water-based drilling fluid system suitable for easy to collapse strata in China is selected to ensure the downhole safety. The development trend of high performance anti-collapse water-based drilling fluid is expected to provide a reference for the research of high performance anti-collapse water-based drilling fluid system and key treatment agent.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70474695","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

Study on Plugging Technology in Oil Test 油试堵漏技术研究

长江油气:英文版 Pub Date : 2022-01-01 DOI: 10.4236/ojogas.2022.74014

Xiong Wang, L. Liao, R. Bai, F. Liu, Wenwu Zheng, Song Wang

引用次数: 0

Contribution to the Characterization of Carbonate Rocks of the Nganzi Oil Exploration Block (Onshore of the DR Congo Coastal Basin) 对甘孜石油勘探区块(刚果(金)海岸盆地陆上)碳酸盐岩特征的贡献

长江油气:英文版 Pub Date : 2022-01-01 DOI: 10.4236/ojogas.2022.73009

Dominique Wetshondo Osomba, Patrick Lokata Ediho, Shams Mbundi Diambu, Bruno Deko Oyema, Benjamin Safari Kachunga, Jean Ondontshia Nkoyi, Link Bukasa Muamba, Joel Kabesa Kilungu

引用次数: 0

Subvolcanic Rock Petroleum System Potential in the South Malang Region, East Java, Indonesia 印度尼西亚东爪哇南马朗地区的次火山岩油气系统潜力

长江油气:英文版 Pub Date : 2021-10-18 DOI: 10.4236/ojogas.2021.64013

C. Prasetyadi, Achmad Subandrio, M. G. Rachman, Antu Ridha Falkhan Barizi, Guntor Suryo Putro

{"title":"Subvolcanic Rock Petroleum System Potential in the South Malang Region, East Java, Indonesia","authors":"C. Prasetyadi, Achmad Subandrio, M. G. Rachman, Antu Ridha Falkhan Barizi, Guntor Suryo Putro","doi":"10.4236/ojogas.2021.64013","DOIUrl":"https://doi.org/10.4236/ojogas.2021.64013","url":null,"abstract":"The South Malang Region is located in the south-eastern part of the Southern Mountain Volcanic Arc; it presents different opportunities for hydrocarbon exploration. The stratigraphy of the study area from old to young consists of Oligocene Volcanic rocks (Mandalika, Watupatok, and Arjosari Formation), Early Miocene Carbonates (Campurdarat and Jaten Formation), Middle Miocene Volcanic (Wuni Formation), Late Miocene-Pliocene Carbonates (Nampol, Oyo, and Wonosari Formation), and Holocene alluvial deposits (Kalipucang Formation). The dominance of volcanic rocks makes this area considered an area without hydrocarbon play prospects. Petroleum system potential is revealed by evaluating and analyzing potential source rock and reservoir rock outcrop samples. The study shows that the Nampol Formation can be considered as a gas-prone source rock, with type III kerogen, total organic content ranging from 3.48 - 26.18 wt%, and possess the potential to produce good to very good hydrocarbons and a hydrogen index ranging from 43 to 86 mgHC/g TOC. Furthermore, rock core analysis and petrographic studies were carried out on the Nampol sandstone where the rock samples showed good reservoir properties. However, the Nampol and Wonosari limestone that was considered as the secondary target for reservoir possesses a low quality of reservoir properties. This study shows that there is a potential for petroleum system existence in the Southern Mountain subvolcanic arc, which is indicated by the presence of source rock and potential reservoir rock as one of the various elements and processes present in a petroleum system.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44756497","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

Laboratory Study on 210°C High Temperature and Salt Resistant Drilling Fluid 210°C高温耐盐钻井液的室内研究

长江油气:英文版 Pub Date : 2021-07-05 DOI: 10.4236/ojogas.2021.63008

Xintong Li, Qi Cao, Li He, Shunyuan Zhang, Song Wang

{"title":"Laboratory Study on 210°C High Temperature and Salt Resistant Drilling Fluid","authors":"Xintong Li, Qi Cao, Li He, Shunyuan Zhang, Song Wang","doi":"10.4236/ojogas.2021.63008","DOIUrl":"https://doi.org/10.4236/ojogas.2021.63008","url":null,"abstract":"Combined with the current research status in this area at home and abroad, with the improvement of salt and high temperature resistance as the research goal, the laboratory research of salt and high temperature resistant drilling fluid system has been carried out, and lubricants, inhibitors and stabilizers have been optimized. The final drilling fluid formula is: water + 3% sepiolite + 0.3% Na2CO3 + 3% RH-225 + 3% KCOOH + 3% G-SPH + 3% CQA-10 + 1.5% ZX-1 + Xinjiang barite, density 2.2 g/cm3, using hot-rolling furnace, environmental scanning electron microscope, high temperature and high pressure plugging instrument and Zeiss microscopes and other instruments use core immersion experiments, permeability recovery value experiments, and static stratification index methods to perform temperature resistance, reservoir protection, plugging performance, and static settlement stability performance of the configured drilling fluid., Inhibition performance, biological toxicity, salt resistance, anti-pollution performance have been tested, and it is concluded that the temperature resistance is good under the condition of 210°C, and the salt resistance can meet the requirements of 20% NaCl + 0.5% CaCl2 concentration. It has a good reservoir protection effect, the permeability recovery value can reach more than 90%, the performance of restraining water dispersion and cuttings expansion is good, the heat roll recovery rate can reach more than 85%, and the SSSI value shows that its settlement stability performance is good; Its plugging performance is good under high temperature and high pressure. It laid the foundation for the next step to promote the field application of the drilling fluid system.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44688571","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

Reservoir Fluid Substitution Effect in Heterogeneous Seismic Model 非均质地震模型中的储层流体替代效应

长江油气:英文版 Pub Date : 2021-07-05 DOI: 10.4236/ojogas.2021.63009

Wei Zhang, Mingjing Gui, Qing Zhao, Mengling Liu, Xinyue Liu, Xinyi Zhang

{"title":"Reservoir Fluid Substitution Effect in Heterogeneous Seismic Model","authors":"Wei Zhang, Mingjing Gui, Qing Zhao, Mengling Liu, Xinyue Liu, Xinyi Zhang","doi":"10.4236/ojogas.2021.63009","DOIUrl":"https://doi.org/10.4236/ojogas.2021.63009","url":null,"abstract":"Based on the difference of wave impedance between sand layer and surrounding rock, the seismic wave numerical simulation software, Tesseral-2D is used to establish the sandstone formation model containing water, oil and gas respectively, and the three models are treated by post-stack time offset under the conditions of defined channel spacing, wavelet frequency and wave velocity of different rock mass, and the root means square amplitude difference attribute profile under the condition of water-filled oil-filled and gas-filled oil-filled is obtained. From this, it can be obtained that after oil-gas substitution occurs in weak non-mean reservoirs, the root-mean-square amplitude difference from the reservoir to the lower part of the reservoir experiences a mutation process from a positive maximum to a negative maximum, while after oil-water substitution, the root-mean-square amplitude difference from the reservoir to the lower part of the reservoir experiences a mutation process from zero to a positive maximum. For a strong heterogeneous reservoir. Therefore, for Weak inhomogeneous media similar to tight sandstone, the root-mean-square amplitude difference attribute can be used to detect the distribution of fluid in the actual gas drive or water drive oil recovery process.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47216413","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

Intelligent Recognition Method of Insufficient Fluid Supply of Oil Well Based on Convolutional Neural Network 基于卷积神经网络的油井供油不足智能识别方法

长江油气:英文版 Pub Date : 2021-07-05 DOI: 10.4236/ojogas.2021.63011

Yanfeng He, Zhenlong Wang, B. Liu, Xiang Wang, Bing Li

{"title":"Intelligent Recognition Method of Insufficient Fluid Supply of Oil Well Based on Convolutional Neural Network","authors":"Yanfeng He, Zhenlong Wang, B. Liu, Xiang Wang, Bing Li","doi":"10.4236/ojogas.2021.63011","DOIUrl":"https://doi.org/10.4236/ojogas.2021.63011","url":null,"abstract":"Traditional methods for judging the degree of insufficient fluid supply in oil wells have low efficiency and limited accuracy. To address this problem, a method for intelligently identifying the degree of insufficient fluid supply in oil wells based on convolutional neural networks is proposed in this paper. Firstly, 5000 indicator diagrams with insufficient liquid supply were collected from the oilfield site, and a sample set was established after preprocessing; then based on the AlexNet model, combined with the characteristics of the indicator diagram, a convolutional neural network model including 4 layers of convolutional layers, 3 layers of down-pooling layers and 2 layers of fully connected layers is established. The backpropagation, ReLu activation function and dropout regularization method are used to complete the training of the convolutional neural network; finally, the performance of the convolutional neural network under different iteration times and network structure is compared, and the super parameter optimization of the model is completed. It has laid a good foundation for realizing the self-adaptive and intelligent matching of oil well production parameters and formation fluid supply conditions. It has certain application prospects. The results show that the accuracy of training and verification of the method exceeds 98%, which can meet the actual application requirements on site.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43429166","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

Development and Application of TL-1 New High Temperature and High Pressure Plugging Instrument TL-1型新型高温高压堵漏仪的研制与应用

长江油气:英文版 Pub Date : 2021-07-05 DOI: 10.4236/ojogas.2021.63010

Yanlin Zou, Chunzhi Luo, Baijing Wang, Huan Zhang, Chunjun Zhang

{"title":"Development and Application of TL-1 New High Temperature and High Pressure Plugging Instrument","authors":"Yanlin Zou, Chunzhi Luo, Baijing Wang, Huan Zhang, Chunjun Zhang","doi":"10.4236/ojogas.2021.63010","DOIUrl":"https://doi.org/10.4236/ojogas.2021.63010","url":null,"abstract":"In view of the fact that most of the filter media of existing plugging evaluation instruments use steel plates or steel balls, which cannot truly simulate the characteristics of the formation, a new type of TL-1 high temperature and high pressure plugging instrument has been developed. The filter medium of the instrument is the natural stone with different cracks and quartz sand beds with different particle sizes, which can better simulate the adsorption and hang-up effect of the formation on the plugging agent. It is possible to evaluate the plugging effect, pressure-bearing capacity and return pressure of the plugging slurry for different cracks and sand beds of different sizes under different temperatures and pressures. Using new and old instruments to evaluate the plugging effect of the same plugging slurry, it is found that the plugging effect is different from the distribution of the plugging material on the crack surface, the plugging effect and the pressure bearing capacity. The instrument is stable and reliable in operation and simple in operation. It is a new instrument for conducting research on anti-leakage plugging materials and anti-leakage plugging drilling fluid systems.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47852737","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

Development of a SGJ-1 of Water-Based Anti-Wax Agent SGJ-1型水基防蜡剂的研制

长江油气:英文版 Pub Date : 2021-03-03 DOI: 10.4236/OJOGAS.2021.62007

L. Liao, Wen-Xia Han, Qi Cao, Xintong Li, Li He, Song Wang

{"title":"Development of a SGJ-1 of Water-Based Anti-Wax Agent","authors":"L. Liao, Wen-Xia Han, Qi Cao, Xintong Li, Li He, Song Wang","doi":"10.4236/OJOGAS.2021.62007","DOIUrl":"https://doi.org/10.4236/OJOGAS.2021.62007","url":null,"abstract":"The phenomenon of petroleum wax deposition is very common during oil well production. When the wax molecule condenses on the surface of the pipeline, it will hinder the exploitation of crude oil, reduce the recovery rate of crude oil, and may lead to the blockage of the pipeline when it is serious, so that the oil recovery work will stop. This phenomenon can be obviously changed by using wax cleaning agent. However, the low ignition point and toxicity of oil-based wax remover are not conducive to oil recovery. Therefore, a new water-based paraffin remover SGJ-1 was developed in this paper. The best formula is: wax dispersant 15%, wetting reversion agent 1%, sodium silicate 1%, alcohol cosolvent 8% and 75% water. Condensation point, wax dissolution rate and anti-wax performance of SGJ-1 water-based dewaxing and anti-waxing agent were tested by self-assembly testing device. The experimental results show that the condensation point of SGJ-1 is -34°C, the viscosity reduction effect is good under 35°C, and the wax dissolution rate is 0.0512 g/min, The highest wax prevention rate can reach 89.58% and the wax removal and wax prevention ability is excellent. Compared with other paraffin removers, SGJ-1 can also reduce the viscosity of crude oil, so it has a good development prospect.","PeriodicalId":65460,"journal":{"name":"长江油气:英文版","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43582362","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