Low density proppant boost annual output 40 million tons of Daqing Oilfield sustained yield

Low density  Proppant  boost annual output 40 million tons of Daqing Oilfield sustained yield, April 9, Daqing Daqing Oilfield Downhole Operation Branch flush the 1st fracturing wells. This time, the amount of low density proppant reached 1,700 cubic meters, about 3,400 tons, the amount of fluid for construction of 2.6 million cubic meters, is usually 100 times the normal fractured wells. 1 well is flush Daqing Oilfield Qingshankou unconventional tight and shale reservoirs fractured reservoir deployed first horizontal wells. This horizontal wells 1,408 meters long, depth 3469 m,  Fracturing   paragraph 17, the construction site using a variety of large vehicles more than 100 vehicles, the staff more than 200 people, can be said that the history of the largest Daqing fracturing operations.

The low-density fracturing situation is complex, as the low-density fracturing operations branch of Daqing Oilfield downhole operation, early in the year to begin preparations for fracturing work. Construction, which wells drilled stratigraphic interpretation of the results of the horizontal segment Gaotaizi reservoirs logging interpretation of 9 floors, of which poor oil layer 4, and the remaining layer of dry layer. As oil drilling target layer with good muddy siltstone, a low porosity and low permeability reservoir dense thin interbedded sand and mud. Fracturing to improve well productivity more difficult. Fracturing is expected to last nine days.

As low density  fracturing proppant  fracturing in the rock after filling in the cracks, making the rock not because of stress release oil outflow is closed, thus maintaining the high conductivity of the rock, thereby increasing oil production, it can be said the fracturing, the application of low-density ceramic proppant Daqing oilfield in order to ensure sustained yield an annual output of 40 million tons has a very important role.