Development Characteristics Of High Permeability Channel And Effect Of Profile Control

With the development of oil field, the reservoir pore, permeability and other physical properties will be transformed to form a channel, resulting in inefficient or ineffective circulation. So it is necessary to carry out reservoir configuration and pore distribution of,to further understand the oil wells connectivity and layer within the remaining oil distribution, effective governance inefficient ineffective circulation zone and further improve a kind of oil recovery to provide theoretical guidance and technical support.This time through the research on the parameter characteristics of the Southern District in the reservoir deposition of thick oil layer structure and sand body bighole,finally established the sedimentary sand body identification, classification and characterization of high permeability channels, has achieved the following results: one is the fine dissection by 6 point bar sand body of the south in block P of two sedimentary units inside the 2 layer flow channel sandbody, plane distribution distribution of the interlayer is a concentric type and fan type two, profile distribution of the interlayer is slow on steep slow down; two is based on the analysis of coring data, characteristics well logging curve is established based on the channel sand body thickness and high permeability channels parameters of PDKD PDKD thin, with the distribution of permeability and effective thickness of sand body, high water thickness and other parameters were established to identify the channels and methods, based on their characteristics, divided into four types; three The high permeability channels in single channel sand body internal developmental characteristics of, the establishment of a hypertonic plane channel characterization methods, to identify the typical sedimentary unit channel sand body of high permeability channels; the fourth is through the blocks in south area of low initial viscosity profile control seven well group transfer profile analysis of,profile control direction for promotion channel communicated with the direction of a large proportion. Adjustment and the effective depth of section total connected with large proportion of effective thickness well effect good.