The present invention provides a device and a method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir. The device comprises sand packed model and temperature control system. The temperature control system is nested outside the sand packed model. The sand packed model comprises sand pack cell, four gas inlets, four gas outlets, bracket, direction control component, rotating shaft, upper cover, lower cover, fixing bolts, two top pressuring inlets, pressure transmission rods, pressure transfer piston and multiple gas sampling ports. The sand pack cell can be filled with quartz sand of different particle size and composition, and the angle of the whole device is adjusted by the direction control component.

The present invention provides a device and a method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir. The device comprises sand packed model and temperature control system. The temperature control system is nested outside the sand packed model. The sand packed model comprises sand pack cell, four gas inlets, four gas outlets, bracket, direction control component, rotating shaft, upper cover, lower cover, fixing bolts, two top pressuring inlets, pressure transmission rods, pressure transfer piston and multiple gas sampling ports. The sand pack cell can be filled with quartz sand of different particle size and composition, and the angle of the whole device is adjusted by the direction control component.

Systems and apparatus for gas sensing including: a sample inlet; a first sorbent tube and a second sorbent tube each in fluidic communication with the sample inlet, wherein the first sorbent tube is sensitive to a first set of gas analytes and the second sorbent tube is sensitive to a second, different set of gas analytes; an array of gas sensors housed in a chamber that is in fluidic communication with the first sorbent tube and the second sorbent tube; and a desorption system configured to selectively desorb and direct contents from each of the first sorbent tube and the second sorbent tube into the chamber housing the array of gas sensors at different times. Methods for gas sensing are also disclosed.

Systems and apparatus for gas sensing including: a sample inlet; a first sorbent tube and a second sorbent tube each in fluidic communication with the sample inlet, wherein the first sorbent tube is sensitive to a first set of gas analytes and the second sorbent tube is sensitive to a second, different set of gas analytes; an array of gas sensors housed in a chamber that is in fluidic communication with the first sorbent tube and the second sorbent tube; and a desorption system configured to selectively desorb and direct contents from each of the first sorbent tube and the second sorbent tube into the chamber housing the array of gas sensors at different times. Methods for gas sensing are also disclosed.

The present application concerns in-situ intrusive probe systems and methods. The probe systems described herein can be installed flush to a hydrocarbon containing structure, such as a pipeline, vessel, or other piping system carrying crude, gas or sour products. The probe systems include hydrogen induced cracking (HIC)-resistant microstructure such that as atomic hydrogen permeates the probe surface, the probe captures recombined hydrogen gas. The pressure of the resultant hydrogen gas buildup is measured and predictions as to the HIC activity of that area can be made.

The present application concerns in-situ intrusive probe systems and methods. The probe systems described herein can be installed flush to a hydrocarbon containing structure, such as a pipeline, vessel, or other piping system carrying crude, gas or sour products. The probe systems include hydrogen induced cracking (HIC)-resistant microstructure such that as atomic hydrogen permeates the probe surface, the probe captures recombined hydrogen gas. The pressure of the resultant hydrogen gas buildup is measured and predictions as to the HIC activity of that area can be made.

Methods and systems for determining fracture and matrix permeability of a subsurface formation. The system includes two upstream reservoirs and two downstream reservoirs, and a sample cell connecting to the reservoirs with valves. The sample cell has a confining pressure (CF) from a fluid. A horizontal plug sample with sleeve is placed in a measurement cell with the confining fluid (CF). A pressure gauge is connected to the small upstream reservoir, and a pressure gauge is connected to the small downstream reservoir. The results provide two sets of effective-stress-dependent permeability values (including fracture permeability and matrix permeability, respectively) for characterizing the reservoir properties.

The present invention provides a device and a method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir. The device comprises sand packed model and temperature control system. The temperature control system is nested outside the sand packed model. The sand packed model comprises sand pack cell, four gas inlets, four gas outlets, bracket, direction control component, rotating shaft, upper cover, lower cover, fixing bolts, two top pressuring inlets, pressure transmission rods, pressure transfer piston and multiple gas sampling ports. The sand pack cell can be filled with quartz sand of different particle size and composition, and the angle of the whole device is adjusted by the direction control component.

System and method for monitoring hydrogen flux across the wall of a vessel or pipe, the system including a monitored volume for sealing an attachment to an outside surface of the wall of the vessel or pipe for collecting hydrogen escaping across the wall surface; a membrane selectively permeable to hydrogen in fluid communication with the monitored volume for permitting hydrogen to escape from the monitored volume in between the two at a defined rate such that hydrogen pressure equilibrium may be reached in the monitored volume for a given hydrogen flux across the wall surface of the vessel or pipe; a pressure measuring device in fluid communication with the monitored volume for measuring hydrogen pressure in the monitored volume; and a temperature measuring device in fluid communication with the monitored volume for measuring temperature in the monitored volume.

System and method for monitoring hydrogen flux across the wall of a vessel or pipe, the system including a monitored volume for sealing an attachment to an outside surface of the wall of the vessel or pipe for collecting hydrogen escaping across the wall surface; a membrane selectively permeable to hydrogen in fluid communication with the monitored volume for permitting hydrogen to escape from the monitored volume in between the two at a defined rate such that hydrogen pressure equilibrium may be reached in the monitored volume for a given hydrogen flux across the wall surface of the vessel or pipe; a pressure measuring device in fluid communication with the monitored volume for measuring hydrogen pressure in the monitored volume; and a temperature measuring device in fluid communication with the monitored volume for measuring temperature in the monitored volume.