Reservoir's Geological Modeling And Distribution Of Remaining Oil In Tanjiaying Area Of The Ansai Oil Field

In view of the Tanjiaying Area of the Ansai Oil Field's oil deposit geology and the development characteristic, the paper at the basis of synthesis analysis reservoir geology , well logging , analyzing chemical experiment and dynamic monitoring data,utilizing ,geology modern oil reserve description technology and method such as geological comprehensive analysis technology, oil deposit 3-D modeling technology , oil reserve numerical stimulant technology , remaining oil degree of saturation oil well logging technologies. taking such as petroleum geology , sedimentology, , reservoir geology , the project developing geology and the oil reserve as theory guiding disciplines. Taking computer technology , what are be used to elaborate chang2 oil reserves and check remaining oil distribution with core deposit modeling. proposed suggestion that this oil region need comprehensive development adjustment.The main achievement of this research is:1. Through meticulous division and Contrast studying of stratum , Original chang 21, chang 22 , chang23 would be parted further, chang 21 be separated into 3 small layer which including chang 21-1,chang 21-2,,chang 21-3.meanwhile, it will building the data base with layers, and according to these establish the sub zone bottom surface constructional drawing.2. It will Union area geology background , distinguishes out the three kinds of tiny deposition appearance which are the grows of runway grit dam, washland and marsh land of mid-river , and have set forth whose space-time evolution law .among the runway grit dams ,deposition grit body is mainly collection., While conducts the sedimentary research, but also has conducted the research to the reservoir's diagenesis, the conclusion is what diagenesis are compaction at first , cementation at afternoon, where after, there is erode. and confirm the chang 2 layer's diagenetic stage with forepart for late-diagenetic stage-A and early- diagenetic-B.3. From microcosmic and macroscopic view(tier of inner , tier , flat surface) on have conducted the research to the reservoir anisotropism . This district chang 2 oil layer groups measure's level, the level, the plane non-isotropic are very strong, the rate of infiltration is mainly controlled by depositing tiny appearance. Chang 21-2 , chang 21-3 small tier of runways dam grits body extremely developed and the sex being connected are strong. 4. Making use of software Petrel to build a model which is 3-D videotext geology model . Including that the structure model , the grit framework model , and has establish a basis for quantization remaining oil studies on this area .5. Reference successful experience of other oil field, through the dynamic analytic method and the comprehensive geological methodology, has carried forecast on the oil deposit's remaining oil distribution, summarized 9 kinds of remaining oil dispersion patterns, and carried analysis on the remaining oil potential. Based on this put forward the oil field next step development adjustment proposal...