Processes and systems for treating oil and gas wells

摘要

Systems and processes are provided for removing fluid from a subterranean well and enhancing the production of oil and/or gas are herein disclosed. In one embodiment, the system includes an injection conduit, an injection valve, a relief valve, a container, a container valve, a return conduit valve, and a return conduit, all arranged within a subterranean well for removing at least one fluid from the well. The removal of at least one fluid from the well is controlled by the flow of gas into the injection conduit.

主权项

1. A tool for removing at least one subterranean fluid from a subterranean well comprising:
a container positioned in a subterranean well; a gas injection conduit within the tool and in fluid communication with the container for providing a fluid path for injecting an injection gas from an earth surface proximate location into the container; a fluid return conduit within the tool and in fluid communication with the container for providing a fluid path for transferring the at least one subterranean fluid from the container to the earth surface proximate location; a gas injection valve within the tool, the gas injection valve defining an interface between the gas injection conduit and the container; a relief valve that defines an interface between the subterranean well and the container; an adjustment rod disposed within the tool and between the gas injection valve and the relief valve, the adjustment rod adjusting an opening pressure of the gas injection valve by adjusting a distance between the gas injection valve and the relief valve; a return valve within the tool, the return valve defining an interface between the fluid return conduit and the container; and a container valve that defines an interface between the subterranean well and the container; wherein the relief valve is positioned on the system at subterranean depth above the container valve; and wherein, in a gas injection orientation, the gas injection valve and the return valve are open, the relief valve and the container valve are closed, and the container is pressurized, and in a fluid removal orientation, the gas injection valve and the return valve are closed, the relief valve and the container valve are open, and the at least one subterranean fluid flows from the wellbore into the container.