SU108840A1 - Method for reducing water and gas content in produced oil - Google Patents

Description

The known methods of reducing the oxen and gas content in the produced oil, which consist in installing gas korea at the bottom of a well, cementing high-permeable cores, are labor-intensive II and do not always provide the required effect.

High-viscous oil is pumped under pressure through the pump to the well under pressure, which deposits cracks and highly permeable streams through which water and gas flow to the bottom of the well.

During the operation of wells, as a result of uneven advancement of the marginal or inflowing water, the water content of the bottom-hole zone of squalvesin increases dramatically and the wells are pre-irrigated.

Under the conditions of cytological reservoir heterogeneity, premature well flooding is often associated with the breakthrough of formation water in certain highly permeable seams of the production facility.

The injection of high-viscosity oil into such wells sharply reduces the water cut and ensures the normal flow of oil.

In the section of the productive horizons in many cases there are highly permeable layers. which drain more intensively, which leads to an increase in the gas saturation of these interlayers and to a breakthrough of gas through them.

In such cases, high-viscosity injection oil penetrates into these gaskets, so that they become impermeable to gas.

Subject invention

The method of reducing the content of the zod and gas in the produced oil, about 1 liter, and so that, in order to block cracks and highly permeable layers, through which water and gas flow to the bottom of the well, a well is pumped into the well. pressure high zk} Yu oil.