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Jin Y.-Q.,Peking University | Jin Y.-Q.,Research Institution of Petroleum Exploration and Development | Guan P.,Peking University | Fu L.,Peking University | Dai X.,Peking University
Natural Gas Geoscience | Year: 2014

In the Yingdong area of Qaidam Basin, cross-plot technique was used to identify the logging lithology. Because of the undercompaction of the layer, the value of sonic log would decrease with the increasing of the depth. The differences between logging time and logging instruments make the same kind of curves in different wells vary a lot. In these processes, we made decompaction correction to the sonic log according to the fact that the formation porosity exponentially decrease with the increasing of the depth. The normalization method of logging curves were optimized, the random effect of some maximum values will be consequently eliminated. After that we extracted the strata seismic attributes and predicted the sand distribution by contrasting with the logging curves. At last, the favorable reservoirs were predicted combining with the sedimentary facies. 16721926 ©, 2014, Science Press. All right reserved.

Su J.,Petrochina | Zhu G.,Petrochina | Yang H.,Research Institution of Petroleum Exploration and Development | Dang X.,China University of Geosciences | And 3 more authors.
Acta Petrologica Sinica | Year: 2013

Lunnan uplift is the most enriched area of marine petroleum in the Tarim Basin. The commercial oil and gas flow has been found from the Ordovician to the Cretaceous, all of that is derived from the marine source rock of Middle-Upper Ordovician. Mesozoic sandstone is the end of petroleum system in the marine hydrocarbons accumulation, the oil and gas found in which are from the adjustment of the oil and gas reservoirs in the Ordovician. Among them, the Triassic oil and gas reservoir in Lunnan area of oil and gas properties, phase diversity, different regions of the pool-forming time differences, description of oil and gas accumulation process inconsistency adjustment. Laser induced fluorescence quantitative analysis technology can analysis the oil-water interface changes, in determining the oil column height, oil water gas shift reflects aspects play an important role in. Through the analysis of three types of oil and gas of the adjustment model for main migration channel, vertical adjustment of oil and gas reservoir distribution is controlled by fault disconnection position and form restrictions; lateral migration of oil and gas along unconformity surface and layered sand body adjustment distance, wide distribution, lithologic traps in local or accumulation, but oil and gas abundance is low; oil and gas mixed adjustment of oil and gas reservoir formation in multi-episodic tectonic superposition area, high position in favor of multi stage oil gas pool formation, oil and gas properties, phase diversity of complex oil and gas reservoir. The late tectonic activity is not only oil and gas adjustment main reservoir-forming period and the main driving mechanism, but also caused the maturation of organic matter, the high point of the structure is the early oil and gas adjustment and late hydrocarbon accumulation and favorable areas, forming oil and gas mixed adjustment of oil and gas reservoirs, and a common vertical adjustment and the lateral migration a three major oil and gas reservoir forming pattern adjustment.

Yuan Z.,China National Petroleum Corporation | Wang H.,China National Petroleum Corporation | Zhang J.,Research Institution of Petroleum Exploration and Development | Li H.,Research Institution of Petroleum Exploration and Development
Zhongguo Jixie Gongcheng/China Mechanical Engineering | Year: 2010

The meshes and boundary conditions of a micro hydrocyclone were determined. Based on RSM and computational fluid dynamics(CFD) calculation software, the pressure field distribution, velocity field distribution and the path line of the separated medium flowing in hydrocyclone were simulated numerically. The results of numerical simulation were analyzed for flowing distribution characteristics of the separated medium.

Zheng X.,Research Institution of Petroleum Exploration and Development
Electronic Journal of Geotechnical Engineering | Year: 2015

In this paper, with grey relational method and test data of 7 wells in B field, the relational sequence is solved when production of well test is regarded as reference sequence and other influencing factors are regarded as factor sequences, the influencing degree of each factor is quantized and effective permeability, formation thickness, production pressure difference, skin factor, reserves abundance are selected as the main control factors. In order to ensure the accuracy and avoid disturbance, the main control factors is processed by multiple linear regression model and productivity prediction model is acquired, the model is tested to be high accuracy when applied in new wells productivity forecast. The research results show that the productivity prediction model is able to guide rapid evaluation of well productivity in overseas oilfield development. © 2015 ejge.

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