The disclosure provides a method for determining a composition of a fluid. The method comprises diverting a sample of a portion of the fluid to a test chamber. The method further comprises actuating a heat source disposed around the test chamber to increase the temperature within the test chamber to produce vapors from the sample of the portion of the fluid and directing the vapors from the sample of the portion of the fluid to a chemical sensor array comprising one or more chemical sensors. The method further comprises determining a composition of the vapors from the sample of portion of the fluid, wherein the composition of the vapors is associated with the composition of the fluid.

A pH monitoring system includes a first pipe, and a second pipe and a third pipe each branched from the first pipe, a drain connected to the third pipe, a sensor module connected to the second pipe, the sensor module including an inlet valve connected to the second pipe, an outlet valve connected to the drain, and a chamber configured to receive a chemical liquid therein, and a pH sensor mountable to the sensor housing. The sensor module is disposed in parallel to the third pipe.

An improved liquefied natural gas vaporization system is provided for converting liquefied natural gas (LNG) to vapor so that it can be measured for integrity. The liquefied natural gas vaporization system of the present invention makes use of a sample probe that uses a cryogenic check valve to allow the vaporization process to begin early, and, due to design and incorporation with heated regulation, reduces the need for an accumulator, which is often used in other systems. By eliminating the need for an accumulator, a more real-time and authentic measurement of the LNG sample may be taken. After the probe takes the sample, the sample is sent to a sampling system and subsequently to an analytical measuring system, where the sample is measured.

It is an object to enable a sample of a sample source to be injected into a LC while a pressure state of the sample source is maintained. There are provided an injector (2) including a first sample loop (18) and an injection valve (20), a sample supply channel (26), a pump part (4), a second sample loop (12), a sample source channel (52), and a path construction part. The path construction part is configured to be capable of selectively constructing a sampling path and a sample supply path. The sampling path is configured so that the sample source channel (52) and the pump part (4) are fluidly connected to each other in a closed system with the second sample loop (12) interposed therebetween and the sample is drawn from the sample source to the second sample loop (12) using the pump part (4), and the sample supply path is configured so that the second sample loop (12) is separated from the sample source channel (52) while maintaining a closed system state of the sample source channel (52) and the pump part (4) or another pump (40) different from the pump part and the sample supply channel (26) are fluidly connected to each other with the second sample loop (12) interposed therebetween and the sample held in the second sample loop (12) is supplied to the injector (2) through the sample supply channel (26) using the pump part (4) or the other pump (40).

A method for using a fluid testing system in fluid communication with a fluid piping system includes providing a pit housing, the pit housing defining an interior pit cavity, a curb stop valve of a curb stop assembly mounted within the interior pit cavity; opening the curb stop valve to permit fluid to flow through the curb stop valve and into a sampling pipe, the sampling pipe at least partially mounted within the interior pit cavity; and dispensing a fluid sample of the fluid from the sampling pipe through a sampling assembly, the sampling assembly mounted within a sampling station housing.

Disclosed herein are methods and system for formation fluid sampling. In at least some embodiments, the method includes pumping formation fluid from a public flow line of a downhole tool via a private flow line into a detachable sample chamber. The method also includes isolating the private flow line from the public flow line. The method also includes collecting measurements of the formation fluid in the private flow line. The method also includes associating the measurements with the detachable sample chamber.

An assembly includes a bypass line having a first connection end and a second connection end, a device base positioned along the bypass line, an upstream valve positioned along the bypass line between the device base and the first connection end, and a downstream valve positioned along the bypass line between the device base and the second connection end. The device base includes a first opening to the bypass line, a second opening to the bypass line, and a support structure supporting at least one of the first and second openings.

An analytical toilet comprising a bowl for receiving excreta from a user; a flush mechanism for cleaning the bowl after use; at least one analytical test device wherein a sample of excreta is analyzed; a manifold comprising conduits and valves for distributing one or more fluids to and from the at least one receptacle; and a digital control device controlling the valves to distribute the sample to the analytical test device for analysis; and distribute fluid to remove the sample from the analytical test device after analysis and to clean the analytical test device is disclosed.

A filtration apparatus and methods of installing, using, and retracting the same. A filtration apparatus includes a compression gland, a ball valve, and a filter pipe. A distal portion of the filter pipe has one or more filtration holes. The filtration apparatus may be installed in a process pipe and the distal portion of the filter pipe may be disposed within the process pipe. The filter pipe can be easily retracted from the process pipe without interruption of the industrial process. The filtration apparatus can be automatically cleaned by compressed air or water.

Analysis device for detecting solid particles in suspension in a lubricant, the analysis device comprising one or more ferromagnetic solid particle sensors, one or more other sensors able to detect non-ferromagnetic solid particles, and one or more magnets. The ferromagnetic solid particle sensors are offset in a direction perpendicular to a main direction of flow of the lubricant in relation to the other sensors, and the magnets are arranged so as to attract ferromagnetic solid particles towards the sensors of ferromagnetic solid particles by drawing them away from the other sensors.