FORECASTING METHOD AREAS OF SECONDARY COLLECTORS such as a crack in the sedimentary cover

摘要

A method of predicting zones of secondary collectors fissure type in the sediments, comprising processing seismic reflected waves, become attached to the selected complex deposits considering geological and geophysical data in the wells holding lithologic and petrophysical investigations of rock samples to determine the most probable genesis secondary collectors selection lithotypes, which is the formation of secondary collectors fissure type, characterized in that the drilled anticlinal structures define the depth of the folds locks, morphological parameters of structures including a maximum bending seams, width, length, area, intensity of folding, the results of geophysical well logging while drilling these structures determine the values ​​of secondary porosity, measured formation pressure within the test intervals is set critical secondary porosity value - KPVT, establish a multidimensional correlation secondary porosity formula KPVT = a · i + a · gradp + c · J + d · K UE + f · H, where i - the maximum bending seams; gradp - pore pressure gradient; J = i / S - folding intensity; S - area structure; Kpob - total porosity; H - depth of the lock folds; a, b, c, d, f - proportionality coefficients determined for a particular region, further unexamined parts of the territory conducted detailed field seismic with thickened through 100 m mesh seismic profiles, conduct processing field seismic data, detect the presence of anticlines and depth