Abstract: An improved downhole well control tool (“WCT”) allows for the control of in-situ fluid flow from a production well having one or more production zones. The WCT is installed in a tubing string in a zone to be controlled. An extensible flow is provided having a threaded connection on its lower end for coupling a pressure gauge or other instrumentation. The extensible flow nipple at its upper end is coupled to a lock body, thereby forming a fully-assembled extensible seal. The seal stem and the gauge may then be lowered using wireline tool into engagement with a tubular sub-assembly having a port. Advantageously, the exterior lateral channels of the extensible flow nipple seal the ports in the tubular sub-assembly. Then, for example, a pressure test may be performed.

Abstract: An improved downhole well control tool (“WCT”) allows for the control of in-situ fluid flow from a production well having one or more production zones. The WCT is installed in a tubing string in a zone to be controlled. A ported seal stem having an orifice of a size and shape to provide the desired choking is seated in the WCT using wireline tools to allow for the production of oil and/or gas. The WCT has an orientation sleeve that causes the seal stem to rotate and align the orifice with a port in the WCT. The seal stem may be removed to fully-open the port of WCT for injection operations, or a non-ported seal stem may be seated in the WCT to seal off the zone. WCTs of different diameters allow for multiple zones to be controlled.

Abstract: A downhole well control tool allows for the control of in-situ fluid flow from a production well. The flow control tool is engaged to an electrical submersible pump (“ESP”) and allows for the in-situ fluid to flow through the tool when the ESP is both active and inactive. The tool also allows for the flow of drilling mud and other drilling fluids when necessary. In addition, the well control tool may also be used to seal off the flow of fluids, and may be used in the retrieval of the ESP.