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Deep-buried tight sandstone reservoirs have strong heterogeneity and complex distribution patterns， which makes it difficult to predict geological sweet spots in those reservoirs. In order to achieve efficient exploration and development， it is urgent to research the accurate identification and prediction of the diagenetic facies of reservoirs among the wells. The identification and distribution prediction of diagenetic facies were carried out using core， well logging， and 3D seismic data based on the diagenesis of Jurassic ultra-deep reservoirs in Yongjin Oilfield， Junggar Basin. It was considered that the diagenesis types of reservoirs mainly include compaction， cementation， dissolution， and metasomatism， which can be divided into five diagenetic facies， such as strong dissolution with chlorite enclave， medium dissolution with authigenic kaolinite， medium calcareous cemented dissolution， strong calcareous cementation， and strongly tight compaction. Based on logging data， petrophysical and physical parameters were used to identify diagenetic facies types of the reservoirs and determine their vertical distribution. The results find that the two dominant diagenetic facies， namely strong dissolution with chlorite enclave and medium dissolution with authigenic kaolinite， are mainly located in the sand body of the main distributary channel of the delta， with suitable reservoir property， and they are the main parts of the oil reservoir development. Based on the analysis of the corresponding relationship between diagenetic facies and seismic P-wave impedance， it is found that the P-wave impedance of the dominant diagenetic facies is relatively low， and the distribution of the dominant diagenetic facies can be predicted by the numerical distribution characteristics of P-wave impedance. Therefore， diagenetic facies distribution is predicted using the inversion results of 3D seismic P-wave impedance， and the development area of the dominant diagenetic facies is determined according to the corresponding relationship between P-wave impedance and different types of diagenetic rocks. The result indicates that the dominant diagenetic facies are mainly located in the Y301-Y302 well area in the northeast of the study area and the Y1 well area in the northwest， showing a locally continuous distribution pattern. Identification of diagenetic facies in reservoirs can provide an essential basis for the distribution prediction of ultra-deep geological sweet spots.

Electric field measurement techniques based on Rydberg atoms have proven to have unique advantages in high sensitivity and have drawn wide attention in microwave electric field metrology and communication. The Rydberg states employed for microwave sensing are usually excited by two- or three-step laser irradiation. It leads to the Rydberg atoms being populated by some specific magnetic quantum number states determined by the laser polarization configurations, whose further coupling to another Rydberg state is also constrained by the microwave polarization. Based on a three-laser optical excitation, we demonstrate this effect on the microwave spectra of the 85Rb transitions 41F7/2 → 42D5/2 and 41F7/2 → 41G7/2 at various combining polarization configurations. It shows a strong polarization dependence on the microwave spectrum and then affects the sensitivity of Rydberg atom-based microwave field sensing. Advisable polarization schemes for higher sensitivity are suggested by the two types of transitions. [ABSTRACT FROM AUTHOR]

We firstly generalize the fuzzy way-below relation on an L-poset, and consider its continuity by means of this relation. After that, we introduce a kind of stratified L-generalized convergence structure on an L-poset. In terms of that, L-fuzzy Scott topology and fuzzy Scott topology are considered, and the properties of fuzzy Scott topology are discussed in detail. At last, we investigate the Scott convergence of stratified L-filters on an L-poset, and show that an L-poset is continuous if and only if the Scott convergence on it coincides with the convergence with respect to the corresponding topological space.

In this paper we report a wave-function visualization of the core-induced interaction of a non-hydrogenic Rydberg atom in an electric field and its resultant redistribution of the spectral line intensities. The energy levels and oscillator strengths are calculated based on an effective potential where the radial part of the wavefunction is expanded in a B-spline basis. The calculation is in good agreement with the experimental measurements of the absorption spectrum of sodium atoms in an electric field of F = 840 V/cm, both below and above the saddle point [E.sub.sp]. The visualization of the wavefunction for the eigenstates can help us to see how they stem from the interaction between two or more red and blue hydrogenic states. An approximate localized symmetry close to the atomic core is also observed in the wavefunctions, which accounts for the alternation of oscillator strengths in the experiment. Key words: Rydberg atom, Stark effect, oscillator strength, symmetry. Nous presentons ici une visualisation par la fonction d'onde de l'interaction induite par le coeur d'un atome de Rydberg non hydrogenique dans un champ electrique, ainsi que la redistribution des intensites des raies spectrales qui s'ensuit. Nous calculons les niveaux d'energie et les forces d'oscillateur a partir d'un potentiel effectif, avec la partie radiale de la fonction d'onde ecrite dans une base B spline. Le calcul est en bon accord avec les valeurs experimentales du spectre d'absorption d'atomes de sodium dans un champ electrique de F = 840 V/cm, a la fois sous et au dessus du point de selle [E.sub.sp]. La visualisation des fonctions d'onde des etats propres peut nous aider a voir comment elles emergent d'une interaction entre deux ou plus d'etats hydrogeniques rouges et bleus. Nous observons aussi dans la fonction d'onde une symetrie locale approximative pres du coeur atomique, ce qui explique l'alternance des forces d'oscillateur dans l'experience. [Traduit par la Redaction] Mots-cles : atome de Rydberg, effet Stark, force d'oscillateur, symetrie. PACS Nos.: 32.60.+i, 32.70.Cs, 32.80.Fb., 1. Introduction Ever since the pioneering work on the Stark spectra of alkali metal atoms by Zimmerman et al. [1], the effect of an electric field on non-hydrogenic atoms in [...]