Moliqing Oilfield Reservoir Fine Description Research

Murray green oilfield double secondary reservoir, formed in the proximal and rapidaccumulation of faulted lake basin environment. Narrow sand body microfacies, lack of stablecomparing strata, late experience multiple tectonic events, reservoir is difficult. The projectapplication of3d seismic combination development well data, accurate to carry out the thrustfault location in the area, the reasonable design of small layer contrast skeleton section,according to the fault footwall strata is not an actual sedimentary system, respectively, tocarry out the contrast of small faults, lower layer;Added on the basis of predecessors’understanding, core observation, rock-electrical corresponding relations, deepening torecognize the sedimentary characteristics of nearshore subaqueous fan sand bodies; Given offorder tectonic belt sand body thickness is small, the present situation of the lack of stablecontinuous strata, and cycle through the different parts, relying on local logo layer changeregularity, respectively, to carry out the small layer contrast, then according to the principle of"complementary space", implements the sand set reasonable division; In group sand boundaryadopt cycle comparison and isochronous surface of common control methods, through singlesand body calibration, contrast and the division of the interface, such as complete processionof the unity of the oil field within the scope of small layer division; By means of the footwallprosodic features, main channel migration patterns, fan body size, quantity, and water depthcondition of comprehensive judgment, determine the fault and formation is not the simplesum of the same set of strata and speculated that the strike-slip fault may distance; Combinedwith the feature of plane distribution of small layer, preliminary depict the footwall facies beltdistribution characteristics of sand body. The research for Murray qing oil field developmentadjustment next laid the foundation of new understanding.