In one embodiment, a sample probe has a cap and a base, wherein the cap includes a grip portion and a projection portion. The projection portion fits within a hollow portion of a filter such that the filter is disposed on the outside of the projection portion and the filter and the cap form a cap assemblage. The base comprises a base recess that receives a portion of the cap assemblage including the filter. The cap and base include corresponding media transfer regions adjacent and connected to the filter that reduces flow resistance and chances of blockage and/or contamination during dissolution-testing sampling using the sample probe.

The application discloses a device for drawing a liquid from a process tank to be protected from contamination, including: a first receptacle for receiving the liquid withdrawn from the process tank; a first liquid line connecting the process tank with the first receptacle; and at least one first valve assembly disposed in the first liquid line and designed to block or release liquid transport through the first liquid line. The device includes at least one pressure sensor for detecting a pressure within the first receptacle. The device is designed such that a pressure difference between the first and the second ends of the first liquid line is greater than a predetermined minimum value when the first liquid line is connected with the process tank and the process tank is to be protected from contamination.

A filtration assembly for separating solids from liquids contained in a sample, and a method for preparing such a sample are disclosed herein. According to one embodiment, the filtration assembly includes an inner element (100) with proximal and distal ends (102,103) and a sample (200) disposed therein. A reinforcing sleeve (300) is disposed around the inner element (100) to form a sample receiver (250) with proximal and distal ends (252,253). A filter (400) is disposed at the open proximal end of the sample receiver (252) and a filtrate receiver (500) is placed over the filter (400) and threadedly engaged with the sample receiver (250) to clamp the filter (400) therebetween. Then, the receivers (250,500) are inverted and a pressure is applied to the sample (200) to force a liquid component (200a) through the filter (400) into the filtrate receiver (500), while solids (200b) are retained in the sample receiver (250).

A sampling container apparatus for a remotely operated vehicle (ROV) is disclosed. An example sampling container includes a tank configured to hold a sample collected from an underwater environment. The tank includes at least one opening that contains a plunger therein. The plunger includes a contraction or retraction mechanism that pulls the plunger into the tank causing the plunger to actuate from an open position to a closed position. The plunger is retained in the open position by a retainer plate. To enable the plunger to actuate to the closed position, the tank is rotated relative to the retainer plate, causing the plunger to traverse a travel channel in the retainer plate. The travel channel includes a plunger window, which when reached by the plunger, enables the plunger to be pulled through the retainer plate, thereby sealing the opening of the tank and preserving the collected sample.

Systems, methods, and apparatuses are provided for sampling solid particles in fluid flowing through a pipeline. In one or more embodiments, a pipeline pig having at least one bypass channel and at least one filter located within the bypass channel is configured to collect solid particles within the fluid of predetermined minimum size. Additional filters of varying mesh size may be included. In other embodiments, at least one valve may be used to adjust the fluid flow through the bypass channel, and a flow metering device may be configured to measure a flow rate of the fluid flowing through the bypass channel. In other embodiments, a bypass control device may be configured to control the valve to regulate fluid flow rate and fluid access into the bypass channel.

A filtration assembly for separating solids from liquids contained in a sample, and a method for preparing such a sample are disclosed herein. According to one embodiment, the filtration assembly includes an inner element (100) with proximal and distal ends (102,103) and a sample (200) disposed therein. A reinforcing sleeve (300) is disposed around the inner element (100) to form a sample receiver (250) with proximal and distal ends (252,253). A filter (400) is disposed at the open proximal end of the sample receiver (252) and a filtrate receiver (500) is placed over the filter (400) and threadedly engaged with the sample receiver (250) to clamp the filter (400) therebetween. Then, the receivers (250,500) are inverted and a pressure is applied to the sample (200) to force a liquid component (200a) through the filter (400) into the filtrate receiver (500), while solids (200b) are retained in the sample receiver (250).

Methods and systems for determining tracer breakthrough from multiple wells commingled at a Gas Oil Separation Plant (GOSP) are provided. An example hydrocarbon reservoir monitoring method includes periodically sampling fluid carried by a water line of a Gas Oil Separation Plant (GOSP). The GOSP is configured to receive commingled well hydrocarbon fluids from multiple wells formed in multiple regions of a hydrocarbon reservoir, separate the well fluids into hydrocarbon components including water, and flow the water through the water line. The multiple regions are tagged with respective tracers. Each tracer is injected into a respective region of the hydrocarbon reservoir surrounding a respective well and can flow into the respective well in response to a well breakthrough. The method also includes analyzing each sampled fluid for one or more tracers of the multiple tracers and monitoring the multiple wells for fluid breakthrough based on results of analyzing each sampled fluid.

A biochemical sludge and physicochemical sludge separate sampling device for identifying attributes of sludge, includes a sludge extraction assembly, and a biochemical reaction tank and a physicochemical reaction tank which are respectively connected to the sludge extraction assembly through connection pipelines. The sludge extraction assembly includes an outer shell, a porous plate clamped to an inner bottom of the outer shell, and a sampling dish. A drain pipe is arranged at a lower end of the outer shell. The sampling dish is provided with a biochemical sludge cavity and a physicochemical sludge cavity. Filter cloth is arranged at inner bottoms of the biochemical sludge cavity and the physicochemical sludge cavity. Electric extrusion stems are arranged at an inner top of the outer shell; and the electric extrusion stems are provided with extrusion plug plates.

A soil-water extraction device, with at least one matrix body (I), into which at least one channel (2) for receiving a soil-water sample is formed, a porous, hydrophilic ceramic (3), which likewise is introduced into the matrix body and which closes off the channel toward the soil side, flush with the matrix body (I), and a hose (4), which leads from the opposite side of the channel to a pump (5) driven by a motor driver (6), wherein: the motor driver (6) is controlled by means of a microcontroller (7); the microcontroller (7) is connected to at least one interface (8); and, by means of the interface (8), information about the moisture (9) is given to the microcontroller, said information being compared with stored target values (11) Also, a method for extracting soil water.

Systems and methods for maintaining operation of gas sampling equipment utilized in oil and gas operations, wherein an isolation valve is deployed along a gas extraction conduit in order to isolate a gas analysis system from pressurized fluid that may be injected into the extraction conduit from a fluid delivery system. A parameter of the flow stream, such as a particular gas content or the presence of a bump gas, may be monitored. A change in the parameter may be indicative that debris is inhibiting fluid flow into the extraction conduit. When such a condition is suspected, gas sampling is suspended and the valve between the gas analysis system and the intake of the extraction conduit is closed. With the valve closed in order to protect the gas analysis system, a fluid is injected into the extraction conduit from the fluid delivery system.