Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)

Paper DateLine

Submission Deadline
( Vol 47 , Issue 01 )
15 May 2023


Publish On
( Vol 47 , Issue 01 )
31 May 2023


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Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)
Gas transmission capability curve of natural gas pipeline system

This paper proposes the concept of gas transmission capability curve of natural gas system, which expands the classic gas transmission capability (GTC) index. GTC, defined as the maximum allowable flow rate of a natural gas system, is used to describe the transmission capability limit of the system. However, we find that the complete capability limit should be described by a curve (GTC curve) instead of GTC, because GTC is just one point of the curve and many other critically secure states still exist except for GTC. Based on this finding, firstly, we define and model the GTC curve as the s

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Sediment transport mechanism and development characteristics of subaqueous fan in the northern steep slope zone of Lijin sag

The sedimentary architectures of submarine/sublacustrine fans are controlled by sedimentary processes, geomorphology and sediment composition in sediment gravity flows. To advance understanding of sedimentary architecture of debris fans formed predominantly by debris flows in deep-water environments, a sub-lacustrine fan (Y11 fan) within a lacustrine succession has been identified and studied through the integration of core data, well logging data and 3D seismic data in the Eocene Dongying Depression, Bohai Bay Basin, east China. Six types of resedimented lithofacies can be recognized, whic

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Effects of alkali-dissolving on formations of mesopore structures and characteristics of micro/mesoporous composites

ZSM-5-based micro-/mesoporous composites have attracted extensive attention as a promising material that could be industrialized in the near future. The hierarchical structure and catalytic performance of the ZSM-5-based hierarchical composite are highly dependent on its treatment conditions. Of these synthesis parameters, dissolution alkalinity is the most important one. However, systematic studies on the effects of dissolution alkalinity, specifically those that discuss the relationship between porosity, acidity, and catalytic performance in ZSM-5-based hierarchical composites by the comb

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Preparation and performance evaluation of enzyme gel breaker for guar-based fracturing fluid in low-temperature reservoirs

Fracturing fluids are being increasingly used for viscosity development and proppant transport during hydraulic fracturing operations. Furthermore, the breaker is an important additive in fracturing fluid to extensively degrade the polymer mass after fracturing operations, thereby maximizing fracture conductivity and minimizing residual damaging materials. In this study, the efficacy of different enzyme breakers was examined in alkaline and medium-temperature reservoirs. The parameters considered were the effect of the breaker on shear resistance performance and sand-suspending performance

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Experiment on feasibility of separating aggregate from waste concrete by progressive jet impingement

This paper presents a study on the possibility of replacing natural coarse aggregates with recycled aggregates in concrete in terms of strength, namely compressive strength and flexural strength. The concrete was designed to have a 25MPa compressive strength and an 8cm slump. The replacement rates of natural aggregates with recycled coarse aggregates were 0%, 10%, 15%, and 20%. The test samples were compressed to determine their strength value after 28 days of curing. The research results give a more complete assessment of the efficiency of the use of recycled raw aggregates instead of natu

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