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The first shale gas horizontal well has been successfully repeated fracturing in China

The first shale gas horizontal well has been successfully repeated fracturing in China

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  Chinese oil network news October 9th, reporters from the southwest oil and gas field was informed that the first horizontal shale gas wells in Changning H3-6 wells refractured construction successfully completed, accumulated valuable experience for the field application of horizontal shale gas wells re fracturing technique.

  Repeated fracturing of shale gas horizontal wells is one of the main techniques in the development of shale gas, by improving the efficiency and transformation of fracturing perforation clusters of casing deformation wells, improve the initial fracturing conductivity, greater use of single well reserves, increase gas production, further improve the recovery.

  Changning H3-6 wells is southwest oil and gas field Ning 201 well area of the old wells, the cumulative production of 43 million 710 thousand cubic meters of shale gas. Southwest oil and gas field through the optimization of repeated fracturing program, carefully organize the construction site by repeated fracturing, refracturing temporary blocking to classification of refracturing, successfully completed the construction of temporary plugging steering 22 times, 23 times, the cumulative injected liquid volume of more than 30 thousand cubic meters, the amount of more than 100 tons of sand. The technical indicators meet the design requirements, pointed out the direction for the production technology of shale gas horizontal wells, wells yield.

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