Patent ID: 9080426
Filing Date: 2015-07-14
Classification: C08L,C09K,E21B,Y10T

Abstract:
1. A completion system of an oil-gas well for controlling a flow of a formation fluid or an injection fluid in a sub-divided section of the oil-gas well, the system comprising: a flow control filter string; and anti-channeling pack-off particles, wherein the flow control filter string is a filter that includes a flow regulating and controlling device, wherein the anti-channeling pack-off particles are provided in an annular space formed by an outer wall of the flow control filter string and a wall of the oil-gas well such that, when the flow control filter string is used to control the flow of the formation fluid or the injection fluid, the anti-channeling pack-off particles permit the formation fluid or the injection fluid to flow radially along the oil-gas well while limiting an axial flow of the formation fluid or the injection fluid along the oil-gas well, and wherein the anti-channeling pack-off particles are styrene and divinylbenzene cross-linked copolymer particles, which have an average particle diameter of 0.05-1.0 mm and a real density of 0.96-1.06 g/cm