facies belt meaning in English
相带
Examples
- The microfacies of yanchang formation in changwu region and favorable facies belts of hydrocarbon accumulation
长武地区延长组沉积微相与油气聚集有利相带 - Sand bar sub - facies of lagoon , front delta , sheet sandstone of offshore sea are the best sedimentary facies belts for the oil & gas accumulation
泻湖相堡坝亚相、三角洲相前缘亚相以及滨海相席状砂亚相是砂岩储层分布和发育的最有利相带。 - There are different main sedimentary facies in different periods of triassic yanchang formation in longdong area and the distribution of petroleum deposit was obviously controlled by sedimentary facies belts
陇东地区三叠系延长组不同时期有着明显不同的主体沉积相，而且油藏的分布明显受沉积相的控制。 - Under the guidance of new principles and methods of modern sedimentology , detrital petrography , reservoir geology , diagenesis , this thesis has carried out detailed study on paleogene formation correlation , sedimentary environment , characteristics of sedimentary facies and diagenesis of the eastern kuche depression , tarim basin , dina area being taken as the main target of the study . based on the core , geology logging , log and seismic data from 9 typical wells , combined with the data of the adjoining area , the dominant sedimentary types of the study area have been recognized and illustrated , such as fan - delta , lacus and normal delta . in terms of the analysis on the sedimentary facies of typical and connecting wells in different areas and facies belt , together with the paleogene tectonic evolution characteristics of foreland basin , the distribution and evolution of the sedimentary facies of the study area have been clearly discovered both vertically and laterally
通过对该区9口井的岩芯、录井、测井、地震资料及邻区资料的分析，识别并阐述了库车坳陷东部下第三系的几种主要的沉积相类型，如扇三角洲相、湖泊相和正常三角洲相；通过对不同地区、不同相带典型井及连井的沉积相分析，结合前陆盆地在下第三系的构造演化特点，弄清了迪那地区下第三系沉积相的纵横相发育展布和演化规律，并建立了沉积相模式；同时，初步开展了成岩作用、储层孔隙演化和储层发育模式的研究工作，科学合理地解释了现今迪那地区下第三系储产层主要发育在粉砂岩中的特殊现象，首次建立了下第三系储层的发育演化模式，为库车坳陷东部地区进一步寻找下第三系大储量、高产油气藏和有利的勘探区块提供科学的、可靠的和最直接的地质依据。 - Abstract : yanchang series is a typical low permeability reservoir , and its favourable sandstone reservoir is delta facies . heavy compaction , cementation and heterogeneity exist in it . according to the analysis of the main control factors of forming the secondary pore , it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure . it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism . organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure , and a lot of secondary pore is produced in the runners . from the present exploration result , it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure
文摘:陕甘宁盆地三叠系延长统是国内外典型的低渗特低渗油田，储集层主要为三角洲砂体，压实作用和胶结作用强烈，储层非均质性非常严重，因此预测次生孔隙发育带是寻找油气聚集带的关键.通过对陕甘宁盆地陇东地区延长统次生孔隙形成的主控因素分析，认为陕甘宁盆地延长统次生孔隙的形成除了受沉积有利相带控制外，还与地层异常压力的作用密切相关.研究认为陇东地区异常压力的形成机理主要由于成岩过程中粘土矿物脱水作用.粘土矿物大量脱水时间正好与有机质脱羧期相一致，从而在异常压力作用下将生油岩中的大量有机酸及co2带到与之相邻的储集层中，并沿着有利储集相带运移，在酸性水经过的地方形成大量的次生孔隙，为后期油气运聚提供有利通道及宿住空间，从现今的勘探结果来看，通过研究地层异常压力纵横向分布特征，并结合有利相带研究预测次生孔隙育良带是行之有效的方法