WELL TREATMENT METHOD Russian patent published in 2019 - IPC C09K8/03 C09K8/60 

FIELD: drilling soil or rock.

SUBSTANCE: group of inventions relates to methods applicable to the wellbore passing through the subterranean formation. Method of treating a subterranean formation from a wellbore, in which a treatment fluid is provided containing heterogeneous particles that contain a degradable material and a stabilizer. Processing fluid is supplied to the inside of the aperture. Plug is formed in the hole with the indicated treatment fluid and the plug is removed. While the wellbore contains a casing and at least one hole in the specified casing, and the specified hole has a diameter. When this processing fluid contains a mixture that contains the first number of particles having a first average size between about 3 mm and 2 cm, and the second number of particles, having a second average size between about 1.6 to 20 times smaller than the first average particle size, or a second number of flakes having a second average size up to 10 times smaller than the first average particle size.

EFFECT: technical result is to increase the efficiency of deviations and separation of layers.

19 cl, 3 dwg