Transfer casing technology in Tuha Oilfield
Chinese oil network news January 3rd, Turpan Hami Santanghu oilfield three Ma 56-26H wells in the success of 800 meters for casing nearly two months later, the former "dead well" resurrection, Nissan 2 tons of oil. This indicates that the construction technology of Tuha oilfield company takes a new step and provides technical support and practical experience for the harnessing of casing damage well.
The fourth quarter of 2017, the three oil production plant of Tuha Santanghu to further enhance oil recovery, decided to implement the overhaul of Ma 56-26H well casing change after the operation of fracturing pumping. Take a repair technology for casing deformation wells wells, serious fault, leak wells and development of a workover technology, improve the repair completely, all the technical indicators and function can restore the original well, meet the development requirements of production. The construction mode of milling + cutting + salvage is adopted in Ma 56-26H well. After milling and salvaging the casing of oil layer 800 meters, the damaged casing was taken out and the new casing was butted successfully, and the test pressure test was held. The success of the change sleeve of the Ma 56-26H well refreshes the history of the Tuha oilfield, providing detailed data for the casing management within 800 meters.
For 1 months, the casing was cut 5 times, milled and milled 17 times, and fishing 22 times. Before and after, 70 processes were carried out, and all the original wells and wells were collected. 1196 data were obtained from construction, and the total accuracy rate of the well was 100%. Turpan Hami openhole test set set the success of the technology will make a number of Tuha Oilfield on the verge of retirement "dead well" resurrection, become Hami of casing damage well solve the "fist" technology.
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