A separation apparatus that includes a weir tank having a plurality of cells and fluid removal apparatus for each cell to remove the fluid from each cell. The fluid removal apparatus includes an actuator and an extension arm whose movement is caused by the actuator. In addition to the actuator and the extension arm, the fluid removal apparatus includes a plunger attached to the extension arm for selectively engaging a first opening in each cell. Furthermore, a method of removing fluid from the separation apparatus via the fluid removal apparatus.

A solids separator includes a housing having a fluid inlet, the fluid inlet oriented to induce helical flow of fluid entering the housing. A flow reversing device is disposed within the housing and is arranged to reverse a longitudinal direction of the helical flow within the housing. A fluid outlet is disposed at an upper end of the housing. The fluid outlet includes within its cross-section a radial center of the housing.

A centrifugal separator includes a stator assembly (114) that includes at least one housing (116), and a rotor assembly (112) positioned within the at least one housing. The rotor assembly includes a rotor shaft (132), an array of longitudinal fins (189) extending radially outward from the rotor shaft, and a plurality of separator vanes (134) coupled to the array of longitudinal fins. Each separator vane includes a plurality of longitudinal slots (194) defined therein and configured to align with the array of longitudinal fins such that the plurality of separator vanes are rotationally interlocked with the array of longitudinal fins.

A separation device, system and associated method are provided herein for separation of particulates form a base fluid. The separation device comprises a first microchannel comprising a fluid inlet and a mesofluidic collection chamber. The mesofluidic collection chamber has a first side and a second side, wherein the mesofluidic collection chamber is operatively coupled to the first microchannel on the first side, and wherein the mesofluidic collection chamber comprises a first fluid outlet at the second side, such that the fluid inlet, first microchannel, and first fluid outlet are in fluidic communication via the mesofluidic collection chamber.

A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

This invention relates to the separation of particulate contaminants from a fluid. In one embodiment of the invention, two sand separators placed in series may be used to separate sand from liquid or gaseous natural gas. This invention has some of its applications in the oil gas industry, particularly for use in separating sand from gas produced by natural gas wells that have been opened by hydraulic fracturing.

A multistage membrane system and a process for treating a gas stream is provided in which the multistage membrane system comprises at least two membrane units wherein a first stage membrane unit comprises a polymeric membrane and a second membrane unit comprises a microporous zeolitic inorganic membrane or a combination of a microporous zeolitic inorganic membrane and a polymeric membrane.

An apparatus for separating particles, such as drill cuttings, from a flowable substance, such as drilling mud, is provided. The apparatus comprises an inlet for entry of particles combined with the flowable substance; an outlet for exit of particles separated from the flowable substance; a movable screen located between the inlet and the outlet; and a wash unit for delivering a wash agent to the particles. The screen allows for passage of the flowable substance therethrough, and defines a path for passage of the particles between the inlet and the outlet. Delivery of the wash agent to the particles assists with separation of the particles from the flowable substance. Associated systems and methods are also provided.

The present invention provides a mixed injection fluid and a corresponding method for enhancing CO.sub.2 sequestration and oil recovery, which is a method of the geothermal driven CO.sub.2 catalytic reduction for enhancing CO.sub.2 sequestration and oil recovery. In the present invention, a technical solution of the liquid nitrogen fracturing, an injection fluid injection, and the catalysis transportation and storage were adopted, which makes full use of the thermal energy of deep geothermal reservoir in combination with nano-Cu-based catalysts to activate the hydrothermal cracking reaction of crude oil and CO.sub.2 thermal reduction reaction, so to simultaneously enhance crude oil recovery and CO.sub.2 sequestration, fundamentally solving the existing problems of CO.sub.2-EOR technologies. Moreover, CO.sub.2 thermal catalytic reduction products can also work as a surfactant to accelerate the desorption crude oil from the rock surface and decrease the interfacial tension, and finally EOR.

A illustrative surface carbon capture and storage system includes a treatment and separation facility that receives CO2 containing fluid and extracts CO2 from the CO2 containing fluid. A compressor downstream of the treatment and separation facility compresses the extracted CO2 into compressed CO2, which is introduced further downstream to a reaction container along with water, and other reactants. A method for surface carbon capture and storage includes separating CO2 from a CO2 containing fluid and compressing the separated CO2. The compressed CO2, along with water, and other reactants is introduced into a reaction container where the CO2 mineralizes. The mineralized CO2 is outputted from the reaction container.