China Petroleum network news, August 21st, Jade East 705H wells and East River 6-H1 wells are preparing to use domestic tail pipe hanger for cementing operations. At present, the tail liner hanger made a successful use of 27 wells in Tarim Oilfield, with a success rate of 100% and a cost reduction of 9 million 400 thousand yuan.
The tail pipe hanger is mainly used to hang the downhole casing in the liner cementing operation. In super deep, super high temperature, high pressure "three super well" is the typical Tarim Oilfield, imported liner hanger cementing has a monopoly on the market, not only the tool of price and service cost is high, and the long period of procurement, inventory pressure, high cost.
To this end, the Tarim Oilfield experts after several rounds of technical demonstration, from design, hanger work, underground stress analysis and other aspects of the precise analysis and evaluation, and the formation of domestic hanger applications. Domestic liner hanger completed 177.8 mm liner cementing construction in Yaha 503 wells, the tail pipe hanger set, upside down, releasing successful, the performance and technical parameters to meet the cementing requirements.
At present, the domestic liner hanger has been successful in the 27 wells basin drilling test, the success rate of 100%, the quality and reliability of cementing tools close to the level of foreign products, open up a new way for cementing basin of lowering the efficiency, the next step will be to carry out the experiment in Kuche area.
Compared with imported tools, the cost of domestic tail pipe hanger is down by 50%, and the average cost of single set is reduced by 300 thousand yuan. At the same time, domestic hanger can be 3 months express production site, the procurement cycle shortened by 75% compared to imports, effectively reduce inventory pressure.
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