Rong 100 Pieces Of Structural And Reservoir Characteristics Research In Liaohe Oilfield

In order to find favorable oil and gas drilling target areas, this paper is based on structural geology, petroleum geology, reservoir geology and sedimentology theory, combined with regional tectonic sedimentary background, using the latest 3 d seismic data, seismic inversion, spectral analysis and other analytical processing technique, to renew the structure characteristics of the studied area and the development of reservoir characteristics, to find favorable oil and gas, can guarantee oilfield reserves and production increase, extend the time of oil field production, improve the economic benefit. Through a new round of fine seismic interpretation, further implement the main fracture distribution and tectonic characteristics, work area has to implement 10 layer traps, with a total area of 4.2 Km2, at the same time in Rong 64~Rong281-24 wellblock in the middle and lower part at the third paragraph of Dongying group explain the reservoir area of 1.1 Km2. Study area developed three main trunk fracture, in the northeast trend. These 3 faults controlled the formation of sedimentary and tectonic development, make the tectonic zonality, east-west secondary faults divided the study area into the north and the south block, made the structure more complicated. Using the seismic inversion method, frequency spectrum decomposition, seismic attribute has carried on the reservoir prediction work, and using the CC related waveform classification method to detect oil and gas in the third paragraph of Dongying group, detected a plane is a zonal distribution area of about 0.5 Km2 good containing expected. To work area of sedimentary environment study find that the study area was mainly fluvial flood plain sedimentary environment in dongying period, and each period of debris source mainly comes from the northeast of long axis provenance and Youyan Gou buried hill two regions. After comprehensive evaluation, selected two traps as a favorable target area of the drilling in this area, puts forward the suggestion of two wells well placement.