A system for improving a steam oil ratio (SOR) includes a direct steam generator (DSG) boiler fluidly coupled with a downhole portion of a steam system via at least a DSG outlet, wherein the DSG boiler is configured to schedule super-heat delivered to the downhole portion to optimize the SOR associated with the system.

The disclosure discloses a solid fluidization tubular separator for marine natural gas hydrate, which includes a first separator and a second separator, wherein the first separator includes the first separation sleeve, the power liquid pipe, the swirl baffle, the recovery mechanism and the sand discharge mechanism. After the hydrate is sucked into the first separation sleeve to generate a circumferential velocity, so that the mud and sand with high density are separated to the pipe wall of the first separation sleeve, and the mud and sand separated to the pipe wall are settled down from the gap between the swirl baffle and the pipe wall along the pipe wall. The hydrate swirl flows into the recovery mechanism, and then leaves the first separation sleeve and enters the second separator, so as to realize the separation of mud and sand and natural gas hydrate.

A system for applying low pressure gas lift artificial lift enables improved efficiency in gas and oil well production. The system comprises: a central tubing in a well hole of the well, the tubing having a well head end and a well sump end; an annulus that extends around the central tubing between from the well head end to the sump end; a compressed gas source; a gas lift gas line connecting the compressed gas source to the well hole; a gas compressor having an input and an output, wherein the output is connected to the annulus; a flowline connected to the well head end of the central tubing; and an automatically controlled flowline choke in the flowline.

A system for applying low pressure gas lift artificial lift enables improved efficiency in gas and oil well production. The system comprises: a central tubing in a well hole of the well, the tubing having a well head end and a well sump end; an annulus that extends around the central tubing between from the well head end to the sump end; a compressed gas source; a gas lift gas line connecting the compressed gas source to the well hole; a gas compressor having an input and an output, wherein the output is connected to the annulus; a flowline connected to the well head end of the central tubing; and an automatically controlled flowline choke in the flowline.

A method for performing a drill stem test (DST) is disclosed. The method includes performing underbalanced drilling (UBD) of exploration wells to penetrate a target interval in a subterranean formation, where UBD is performed when a wellbore fluid pressure is less than a formation fluid pressure to allow a fluid flow from the target interval to surface during a drilling phase of the UBD, determining, based on the UBD of the exploration wells, a measure of the fluid flow from the target interval to the surface, obtaining, based on the UBD of the exploration wells, open hole logs of the exploration wells, where the open hole logs represent a reservoir property of the target interval, and selectively performing, based at least on the measure of the fluid flow and the open hole logs, the DST of the exploration wells.

A method for performing a drill stem test (DST) is disclosed. The method includes performing underbalanced drilling (UBD) of exploration wells to penetrate a target interval in a subterranean formation, where UBD is performed when a wellbore fluid pressure is less than a formation fluid pressure to allow a fluid flow from the target interval to surface during a drilling phase of the UBD, determining, based on the UBD of the exploration wells, a measure of the fluid flow from the target interval to the surface, obtaining, based on the UBD of the exploration wells, open hole logs of the exploration wells, where the open hole logs represent a reservoir property of the target interval, and selectively performing, based at least on the measure of the fluid flow and the open hole logs, the DST of the exploration wells.

A system for separating solids from a fluid mixture includes a vessel including a first chamber to receive a solid-laden fluid mixture, and a second chamber to receive liquids separated from the solid-laden fluid mixture. In certain aspects, at least one eductor is disposed in the first chamber to flow the solid-laden fluid mixture out of the first chamber. In certain aspects, an auger is disposed in the first chamber to move at least solids of the solid-laden fluid mixture out of the first chamber.

A system for separating solids from a fluid mixture includes a vessel including a first chamber to receive a solid-laden fluid mixture, and a second chamber to receive liquids separated from the solid-laden fluid mixture. In certain aspects, at least one eductor is disposed in the first chamber to flow the solid-laden fluid mixture out of the first chamber. In certain aspects, an auger is disposed in the first chamber to move at least solids of the solid-laden fluid mixture out of the first chamber.

The present disclosure relates to a separating device for removing solid particles from fluids, and to the use of said separating device for removing solid particles from fluids.

Disclosed is a system and method to separate solid particle components from a fluid. It can be used in close association with a hydrocarbon producing well and uses a novel combination of mechanical filtration, solids decantation, and real and apparent forces. Disclosed is a spherical vessel with a tangential inlet to introduce the fluid and a fluid exhaust and filter arranged on the center line of the interior of the vessel. A combination of pressurized fluid and solid particles enter at the tangential inlet and move primarily in a circular path around the interior of the vessel. The circular path results in the larger mass particles settling at the vessels lower region. Less massive particles may be entrained in the exiting fluid flow toward a filter element where they are removed from the exiting fluid. The vessel has an opening to remove the trapped separated particles.