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Latest articles for Journal of Physics: Conference Series

IOPscience

  • Intelligent Porosity Prediction of Old Oilfield Based on Residual Multilayer Perceptron
    The objective of this paper is to summarize the porosity interpretation and prediction methods of old oilfields. Due to the existence of a large number of oilfields with a long production time in China, the logging data of this type of oilfield have problems such as poor data quality, relatively long data, and different data standards, and it is very difficult to interpret and predict the physical properties such as porosity in production and development. In order to solve this problem, this paper proposes a new technical route, in which the data obtained from core analysis are first preprocessed by homing, baseline, normalization, etc., and then the residual multilayer perceptron model is established, and finally the trained model is applied to the practice to explain and predict porosity. The correlation of the prediction results of the test set reached about 0.91, which had a good generalization ability, and then the reservoir parameter model was established by using the prediction results to provide a basis for the production practice in this area. The practical significance and suggestions of the prediction results, as well as the possible research limitations and future research directions are also discussed. In general, this study provides a technical route for solving the problem of porosity interpretation and prediction in old oilfields, and provides a reference for practice and research in this field.

  • Preface
    As an academic conference, IPPTC aims to provide an ideal opportunity for industry experts, leading engineers, researchers and technical managers as well as university scholars to share ideas and research achievements related to petroleum & petrochemical technology and discuss the practical challenges encountered and the solutions adopted. IPPTC is held annually since 2017, it becomes a platform to bridge the knowledge gap covering the whole stream in oil and gas between China and the world. Following the success of IPPTC in previous years, this multi-disciplined conference will be taken place at the same time with China International Petroleum and Petrochemical Equipment Exhibition (CIPPE). This academic conference aims to provide an ideal opportunity for industry experts, leading engineers, researchers and technical managers as well as university scholars to share ideas and research achievements related to petroleum & petrochemical technology and discuss the practical challenges encountered and the solutions adopted. It will create a platform to bridge the knowledge gap between China and the world. List of Reservoir Geology Engineering, Reservoir Engineering, Drilling and Well Integrity, Oil and Gas Production Engineering, Offshore Drilling and Production Engineering & Gathering and Transportation System, Offshore Drilling Production, Refining and Petrochemical Production, Machinery, Material Science and Corrosion Protection, Digital and Intelligent Technology and Environment Monitor and Management are available in this PDF.

  • Peer Review Statement
    All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Undefined • Conference submission management system: Morressier • Number of submissions received: 630 • Number of submissions sent for review: 629 • Number of submissions accepted: 244 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 38.7 • Average number of reviews per paper: 3 • Total number of reviewers involved: 86 • Contact person for queries: Name: Jia’en Lin Email: jnlin@xsyu.edu.cn Affiliation: Xi’an Shiyou University

  • Research on Key Technology of Intelligent Beam Pumping Unit Based on Clean Oil Production Concept
    The process of heavy oil production is usually accompanied by high temperature steam injection and asphaltene precipitation, which threaten the stable operation of pumping units and the surrounding water environment. At present, the research related to heavy oil development focuses on the optimization of the development plan, and lacks the design and technical research related to the pumping unit. For this reason, an intelligent beam pumping unit stability analysis model based on the concept of clean oil production is built. Then, the applicability of the model is validated through a comparison with the stability of the actual pumping unit during operation. At the same time, the impact of asphaltene precipitation on pumping stability after thermal recovery of heavy oil is analyzed. Finally, measures to reduce asphaltene precipitation and improve the stability of pumping units in the process of oil recovery are proposed. The results reveal that the proportion of asphaltene in heavy oil is high, and its rheological properties are more suitable to be described by power law model. At the same time, the study also found that asphaltene in heavy oil will gradually precipitate at a slower rate, resulting in the additional stress of the pumping unit. The final additional stress on the beam pumping unit is 10.21 MPa, producing a maximum of 22.21 mm intermittent vibration. Moreover, the gradual increase of asphaltene content in heavy oil will lead to a significant increase in asphaltene precipitation, and the stability of the pumping unit will also become worse. When the asphaltene content in heavy oil increases from 10% to 40%, the final precipitation of asphaltene will increase from 21.31 kg to 93.66 kg. The research and development of a new cosolvent, the addition of intelligent monitoring module, and the optimization of pumping unit’s structure have been identified as crucial factors in ensuring the its stability in the development process.

  • Research on Potential Tapping of Remaining Oil along Fault Edge of Transition Belt
    The remaining oil in the local area near the fault is still relatively enriched, which is the focus of further exploration. However, most of the remaining oil at the edge of the fault is located in areas where injection and production wells cannot control or utilize it effectively. In response to the difficulties and problems encountered in the development process of the fault edge at the X transition belt in A Oilfield, the target well group was determined based on the optimal boundary of the potential zone at the fault edge, and the remaining oil potential was evaluated. By analyzing the characteristics of fault development, principles for deploying oil production wells at fault edges, sedimentary features of oil reservoirs, development status of oil reservoirs, and distribution characteristics of remaining oil, a refined understanding of the reservoir was achieved, and targeted development adjustment strategies were determined. The “standing at high points, digging out corners” approach was adopted to reasonably deploy highly deviated directional wells, achieving effective tapping of remaining oil in the lower part of the fault; The degree of completeness of the injection production relationship near the fault is low. After the production of the highly deviated directional well, it is beneficial to maintain the development effect of the large displacement directional well by supplementing the hole through appropriate layers; In transitional belt areas, the third-type of oil reservoirs have multiple layers, small thickness, poor physical properties, and high clay content. The “pressure drive” technology can quickly send the oil displacement fluid through fractures to the deep part of the reservoir, effectively improving the oil displacement efficiency. This development adjustment strategy is of great value in improving the recovery rate of low yield and low efficiency areas in the transition belt of A Oilfield.