Open AccessAnalysis on the effect of prolonged injection of oil layer in the Gao 2 Formation of La 8-182 well area in Lamadian Oilfield
Author(s) -
Dandan Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/384/1/012097
Subject(s) - water injection (oil production) , stratification (seeds) , petroleum engineering , materials science , environmental science , geology , seed dormancy , botany , germination , dormancy , biology
At the end of 2012, the three types of oil layers completed the design of the polymer dosage. Since the water content did not rise and the concentration of the polymerization was low, the injection was prolonged from January of the 13th. The extension of the injection phase still has a strong injection capacity, and the water-bearing initial stage is slowly and slowly recovered. In this paper, the characteristics of water cuts in the extended injection phase of the test area are analyzed in combination with different water body water change laws and comprehensive adjustment methods, in order to optimize the three types of oil stratification. The design of the drive scheme provides a basis for accurately predicting the ultimate improvement of the recovery rate of the three types of oil layers.