Multi arm caliper imaging guidance wells rehabilitation in Dagang Oilfield three production plant
China oil network news as of August 31st, Dagang Oilfield three plant application of downhole casing multi azimuth imaging logging technology, the successful implementation of card operation leakage wells 6, a success rate of 93.9%, an increase of 14%, 290 cubic meters of water injection recovery day.
In Dagang Oilfield, the three oil production plant has many problems such as high salinity, high temperature and casing leakage. At present, there are 311 casing injection wells in this plant, and there are about 50 new casing wells in recent years, which results in low level of injection production well pattern and seriously influences the normal production of oil wells.
In order to ensure a successful rate of operation and the validity, the casing damaged wells to achieve normalization of water injection, Dagang oilfield application innovation factory three arm caliper imaging logging technology of casing wall stereogram, plane distribution map. Caliper imaging can check casing diameter changes, directly and accurately determine casing deformation, fracture, bending, perforation, inner wall corrosion depth and shape, showing casing posture and damage location, precise determination of casing leakage location.
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