Font Size: a A A

Evaluation Of Reservoir Of Shahejie Formation In Cao Jia Wu Oil Field, Langgu Sag

Posted on:2006-12-16Degree:MasterType:Thesis
Country:ChinaCandidate:H Z QiFull Text:PDF
GTID:2120360155958436Subject:Oil and gas field development project
Abstract/Summary:PDF Full Text Request
The study area lie in the western area of Langgu sag,which being as the most of tectonic-zones of exploration through about 30 years, but the material progression be not gained with the increasing more and more difficulty. According to result of third resource evaluation,the total conglomeration oil is 1.0747×108t, gas is 485×108m3.The transformation ratio of resource is only percent of 29.73 up to now.The article has a evaluation of reservoir of the third member of the Shahejie formation in the Caojiawu oil field based on these informations have been study for seism, well logging, drill core and testing. The study area is a washin-anticline held faults of jiuzhou and caojiawu under duress. Object layer is part of sedimentary system of nearshore subaqueous fans, its plane spread consistent with vertical evolvement.The sedimentary texture of shape of fan is in evidence in plane and from middle-fan to outer fan vertical.The study area is mainly about middle pore and low permeability reservoir.The pore types include intergranular pore, intergranular dissolved pore,and intragranular dissolved pore. The controlling factors of reservoir development such as rock type, sedimentary facies and diagenesis.Based on well logging interpretation by neural networks application of multi-parameter to identify oil and water layer and venficated well.With the method identify reservoir oilness of sixteen wells and based on evaluation of reservoir to table four favored oilness entrapment and forecast reserves of oil reservoir.Based on above research,provide proposes for progressive exploration and exploitation.
Keywords/Search Tags:reservoir evaluation, caojiawu structure, nearshore subaqueous fan, oilness entrapment, progressive exploration and exploitation
PDF Full Text Request
Related items