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Fine Interpretation And Reservoir Study Of SaⅢ Petroleum Reservoir Group In The X Areas Of Lamadian Filed Based On Well-Seismic Integratation

Posted on:2013-02-25Degree:MasterType:Thesis
Country:ChinaCandidate:H X ZhangFull Text:PDF
GTID:2210330374966113Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Exployed for many years, Daqing oil field has gradually came into the stage ofcontaining more water. Because reservoir anisotropism makes remaining oil distribute highlydecentralized, reservoir prediction become more and more difficultly. Effective explorationdifficulty of recoverable reserves remained is becoming greater. In this study, in order to fullyexploit the potential of the development seismic, the furthermore research of structure andreservoir of exploited oil field have been carried out, including the faults, structure of microamplitude and reservoir distribution. Based on these studies, the exploration and developmentspace have been extended. The study above gives a technique support for coordination ofdrilling more wells, expanding oil field area and further evaluation.The research is carried out in the background of high density seimic data of X Block ofLamadian filed. Basing on the idea of well and seismic combination, the following studieshave been developed:①Precise seismic interpretation of well-seismic combination: in thewhole region, with the idea of combination of drilling-logging-seismic, with five practice andrecognition of point-line-surface-room, the reliability of the seismic interpretation layers areensured. The fault interpretation mainly bases on breakpoint in wells, combining with thecoherent cube, inclination attributes, azimuth attributes and other technical means, thereliability of fault identification is settled.②Inversion prediction of reservoir reconstruction:basing on the depositional characteristic of study area and sand distribution, the inversionbased on the frequency compensation is used. The distribution, contact relationships andconnectivity of the sand body between wells are predicted.③well-seismic sedimentarymicrofacies: basing on the principle of seismic sedimentology, with the analysis of drillinglithology and electrical response characteristics, curve rhythm and cycle are compared, thesedimentary microfacies characteristics of well are quantitatively described. In the mean time,combining with the results of seismic inversion and seismic phase, the sedimentary facies arecompleted.The study shows that the fault combination rate has been rised to82%in the finestructure interpretation; the changes of river channel by the well-seismic data are summarizedinto four types: river continuity, channel size, channel combination, and river stages. On thisbasis, combining with the characteristics of the curve shape differences, height deviation and inversion slice, the stages of river channels of important sedimentary units are studied. Alsothe distribution kinds of remaining oil are given, which provide beneficial reference inpopularizing development seismic in oil reservoir description of old oil field.
Keywords/Search Tags:Combination of well and seismic, Lamadian, prise structural interpretation, seismic inversion, sedimentary microfacies
PDF Full Text Request
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