METHOD AND SYSTEM FOR IMPACT PRESSURE GENERATION

摘要

A method is described for the recovery of hydrocarbon from a reservoir. The method includes arranging a chamber in fluid communication with the reservoir via at least one conduit, and having the chamber comprising first and second wall parts movable relative to each other. An impact pressure is provided in the fluid to propagate to the reservoir via the conduit, where the impact pressure is generated by a collision process between an object arranged outside of the fluid and the first wall parts for the first wall part to impact on the fluid in the chamber. Further, the chamber is arranged to avoid a build-up of gas-inclusions where the first wall part impacts on the fluid. This may be obtained by arranging the conduit in or adjacent to the zone where the gas-inclusions naturally gather by influence of the gravitational forces, or by placing the first wall part impacting on the fluid away from this zone. The invention further relates to a system for the generation of impact pressure.

主权项

1. An impact pressure generating system for the generation of impact pressure in a fluid employed to a reservoir for recovery of hydrocarbon from the reservoir, the system comprising an at least partly fluid-filled chamber in fluid communication with the reservoir via at least one conduit, the chamber comprising a first and a second wall part movable relative to each other, the system further comprising an object arranged outside said fluid to collide with the first wall part in a collision process to thereby impact on the fluid inside the chamber generating an impact pressure in the fluid to propagate to the reservoir via the conduit, wherein the chamber comprises a zone wherein gas-inclusions naturally gather by influence of the gravitational forces and wherein the chamber is arranged such as to avoid a build-up of gas-inclusions where the first wall part impacts on the fluid by placing the conduit in said zone, or by placing the first wall part impacting on the fluid away from said zone.