Open AccessStudy on the method of improving fracturing effect by waterflooding in extra high water cut stage
Author(s) -
Li Zhao
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/514/2/022007
Subject(s) - petroleum engineering , water flooding , fracturing fluid , water cut , wellbore , oil field , water injection (oil production) , fracture (geology) , productivity , environmental science , geology , engineering , geotechnical engineering , economics , macroeconomics
After the oil field enters the stage of “double ultra-high” development, the development potential turns to the reservoir with worse development, and it is more difficult to identify the remaining oil. In order to meet the requirements of potential tapping under the new situation and achieve accurate potential tapping, the conventional fracturing technology has been continuously developed and improved by strengthening the analysis of remaining oil, optimizing the scheme design and other methods, effectively making up for the decline of production of old wells. At the same time, on the basis of conventional fracturing technology, aiming at the characteristics of reservoir and well pattern, the new high-efficiency fracturing technology represented by fracture controlled sand body fracturing and three types of reservoir pressure flooding is explored, which realizes the breakthrough of low production well productivity in poor reservoir and expands the fracturing technology.