Oil-gas Regular Controlling Study On Contemporaneous Split In The Region Of Wennan

The thesis divect against Wennan Continental facies complicated fault blockoil-gas field geology and development characteristics,it synethetic utilizegeology,seismic,well logs,analysis chemical examination and dynamic statemonitor etc.kinds of information,analyses on expanding basin and theory onhydrocarbon-bearing system etc.theory of many course as guider,forming andevolution of contemporaneous split as key.We have systematic studied constructcharacteristic,the fault layer closing and closing the mechanism and oilaccumulation characteristic,forming condition,distributing regwar etc.so as tobuild reservoir forming model,classify oil gas system,forecasting oil-gasreservoir distributing,choosing exploration and development arrangement.We have achieved 7 kinds knowledge and achievement pass to study:① Having built up graduation and periodical movement sequence of the faultin the region of Wennan,Having study Construct forming mechanism,havinganalyzed compound salt structure shape and structure characteristic,havingpredicated associated structure regular pattern in basement constructshape,salt rock plasticity stretch;structure strain field and sedimentarymatter source etc.② Ⅱ grade Contemporaneous split screen pattern activity have controlledevery subsidence central plane migration in the region of Wennan,the activityof Ⅱ grade contemporaneous split and associated fault have formed 6 kindsoil-gas reservoir pattern or compose;having built up 3 kinds of slop break modelsand 9 kinds of fault controlling sand models.③ Having finished qualitative analysis and quantitative evaluation offault blocking in the region of Wennan and having summed up 3 kinds models aboutcontemporaneous split blocking in the region of Wennan,it is sealed well whichis related to its torsional stress,concentrated marl and the lower sand-mudcompare.④ It is the first time to divide reservoir forming system into mainreservoir forming stage and late sub-depression stage according to the changeof return to return the stage.⑤ It is lead to use fault analysis to seek sandstone development belt anddetermine drilling target.⑥ Ⅱ grade the inherity movement of oil-source split,the oil-gas migrateand accumulate through the split sand-body transportion network in the regionof WenXi.It is determined as main growth "Small Scaled,the second living,lowrange"structune and structure rock property oil-gas reservoir in lightDongYing,furthermore,it points out the oil , reservoir of exploration anddevelopment targets about coming down.⑦ Pass to split the movable characteristic and the comprehensive researchof aspect etc.of the 2 grade of Xulou in blocking property and themigration,accumnlation space,accumulation style.We have summed up the belt ofopposite direction ridge of roof about oil-gas reservoir in WenDong that it has5 kinds reservoir forming model.it points out that the concrete beneficial thetargets of exploration and development.The thesis are built the analysis the growth history and spreadingcharacteristics of contemporaneous split and its control function onmigrating,accumulating and distributing,passing the thesis explore incontemporaneous split of controlling the oil-gas mechanism and mode.The firststep,we achieve a set of studying the way of thinking and methods,it is alsovery useful for studying of exploring and development in other continental faciescomplicated fault break oil-gas field.