A method for inverting true mass content of water ice in lunar soil using a lunar soil water molecule analyzer (LSWMA) includes: obtaining weight data of a lunar soil sample, temperature data of a sample receiving container that receives the lunar soil sample, and duration of a transfer process of the lunar soil sample; obtaining measurement data of total pressure of the water vapor; calculating a sublimation loss based on a sublimation rate and the duration of the transfer process, and estimating a relative sublimation loss rate; correcting the measurement data of the total pressure of the water and obtaining true pressure data of the water vapor; and calculating, based on the true pressure data of the water vapor, mass of the water vapor, and further calculating mass content of water ice in lunar soil.

A method for inverting true mass content of water ice in lunar soil using a lunar soil water molecule analyzer (LSWMA) includes: obtaining weight data of a lunar soil sample, temperature data of a sample receiving container that receives the lunar soil sample, and duration of a transfer process of the lunar soil sample; obtaining measurement data of total pressure of the water vapor; calculating a sublimation loss based on a sublimation rate and the duration of the transfer process, and estimating a relative sublimation loss rate; correcting the measurement data of the total pressure of the water and obtaining true pressure data of the water vapor; and calculating, based on the true pressure data of the water vapor, mass of the water vapor, and further calculating mass content of water ice in lunar soil.

The present invention discloses a device and method for testing the gas loss amount which simulates a wireline coring process, and belongs to the field of petroleum engineering. The device includes: a programmable temperature control thermostat for simulating temperature changes in a wireline coring process, a simulated center pipe body for constructing a simulated environment of the center pipe body being filled with drilling fluid or clean water, a simulated coring barrel for drilling for and retaining a core sample, a gas injection control and recovery device, a liquid injection control and recovery device, and a drainage and gas collection meter. The present invention has advantages as follows: it is simple to implement and can reproduce a real drilling and coring process to a certain extent; the simulation of the coordinated changes in liquid pressure and temperature environment experienced by the core sample lifted to a wellhead from a drilling bottom hole through the programmable temperature control thermostat and a program-controlled constant pressure valve, can truly reproduce the environmental conditions of a wireline coring barrel being filled with drilling fluid and the loss changes in gas content of the core sample with the coordinated descents in liquid-phase pressure and temperature in the liquid-phase filling environment in the core lift process.

The present invention discloses a device and method for testing the gas loss amount which simulates a wireline coring process, and belongs to the field of petroleum engineering. The device includes: a programmable temperature control thermostat for simulating temperature changes in a wireline coring process, a simulated center pipe body for constructing a simulated environment of the center pipe body being filled with drilling fluid or clean water, a simulated coring barrel for drilling for and retaining a core sample, a gas injection control and recovery device, a liquid injection control and recovery device, and a drainage and gas collection meter. The present invention has advantages as follows: it is simple to implement and can reproduce a real drilling and coring process to a certain extent; the simulation of the coordinated changes in liquid pressure and temperature environment experienced by the core sample lifted to a wellhead from a drilling bottom hole through the programmable temperature control thermostat and a program-controlled constant pressure valve, can truly reproduce the environmental conditions of a wireline coring barrel being filled with drilling fluid and the loss changes in gas content of the core sample with the coordinated descents in liquid-phase pressure and temperature in the liquid-phase filling environment in the core lift process.

A configuration is provided in which outside air is taken as a carrier gas into a carrier gas flow path (A, B). A CO.sub.2 sensor (specific gas detection sensor) (71) for detecting a CO.sub.2 gas desorbed from a sample is installed in a component gas detector (70). A CO.sub.2 sensor (air-containing specific gas detection sensor) (54) for detecting a CO.sub.2 gas contained in air taken into the carrier gas flow path by a blower fan (51) is installed separately. A CO.sub.2 gas detection amount detected by the air-containing specific gas detection sensor (54) is subtracted from a CO.sub.2 gas detection amount detected by the specific gas detection sensor (71) to calculate a detection amount of the CO.sub.2 gas desorbed from the sample.

A configuration is provided in which outside air is taken as a carrier gas into a carrier gas flow path (A, B). A CO.sub.2 sensor (specific gas detection sensor) (71) for detecting a CO.sub.2 gas desorbed from a sample is installed in a component gas detector (70). A CO.sub.2 sensor (air-containing specific gas detection sensor) (54) for detecting a CO.sub.2 gas contained in air taken into the carrier gas flow path by a blower fan (51) is installed separately. A CO.sub.2 gas detection amount detected by the air-containing specific gas detection sensor (54) is subtracted from a CO.sub.2 gas detection amount detected by the specific gas detection sensor (71) to calculate a detection amount of the CO.sub.2 gas desorbed from the sample.

Provided are analytic methods for determining stability of a chemical sample, the methods comprising: heating the chemical sample within a calorimetric device, measuring a pressure within the calorimetric device while applying heat to the chemical sample, measuring a temperature of the chemical sample while applying heat to the chemical sample, identifying a pressure inflection point in the pressure data, identifying the temperature at the identified pressure inflection point, and determining stability of the chemical sample at the pressure inflection point by comparing the identified temperature and a predetermined threshold temperature.

Provided are analytic methods for determining stability of a chemical sample, the methods comprising: heating the chemical sample within a calorimetric device, measuring a pressure within the calorimetric device while applying heat to the chemical sample, measuring a temperature of the chemical sample while applying heat to the chemical sample, identifying a pressure inflection point in the pressure data, identifying the temperature at the identified pressure inflection point, and determining stability of the chemical sample at the pressure inflection point by comparing the identified temperature and a predetermined threshold temperature.