Abstract: A downhole tool for analyzing reservoir fluids includes a mechanism for extracting a fluid sample (e.g., single phase liquid sample) from a wellbore, a sample depressurization module to liberate the gas phase from the extracted fluid sample, and a gas sensor utilized to detect one or more components of the gas phase. In certain embodiments, the downhole tool may be a formation testing tool, and the depressurization module may be a bubble point measurement module.

Abstract: Methods of mixing fluids, especially wellbore fluids, without causing wear to the vessel containing the fluid, are disclosed, using weighted aqueous phase for mixing. Also disclosed are methods of mixing and analyzing fluids using weighted phases including scavengers.

Abstract: A computer accepts dead-oil properties of a reservoir fluid sampled from a well. The dead-oil properties are the measured composition of the reservoir fluid after volatile components of the reservoir have substantially vaporized. The computer analyzes the dead-oil properties and a constraint to produce estimated live-oil properties of the reservoir fluid. The live-oil properties are the composition of the reservoir before the volatile components have substantially vaporized. The computer uses the estimated live-oil properties to make a decision regarding the well.

Abstract: An in-well type sampling system including a sampling chamber actuable to receive a fluid sample and a pressure source coupled to the sampling chamber to supply pressure to the sampling chamber after the sampling chamber actuating. A pressure sensor is provided in communication with the pressure source to measure the pressure of the pressure source. A telemetry communicator is coupled to the pressure sensor to send a signal from the pressure sensor away from the sampling system.

Abstract: Methods of mixing fluids, especially wellbore fluids, without causing wear to the vessel containing the fluid, are disclosed, using weighted aqueous phase for mixing. Also disclosed are methods of mixing and analyzing fluids using weighted phases including scavengers.

Abstract: An in-well type sampling system including a sampling chamber actuable to receive a fluid sample and a pressure source coupled to the sampling chamber to supply pressure to the sampling chamber after the sampling chamber actuating. A pressure sensor is provided in communication with the pressure source to measure the pressure of the pressure source. A telemetry communicator is coupled to the pressure sensor to send a signal from the pressure sensor away from the sampling system.

Abstract: Apparatus and method for collecting and preserving in representative condition a fluid sample from a reservoir which comprises: positioning a sample container including a sampler in the vicinity of a subterranean zone to be sampled, and wherein the step of collecting and preserving the sample comprises allowing or causing the sample to first flow into the sample receptacle, wherein the movement of the sample into the sample receptacle is restricted by the movement of a sampling piston, and wherein the movement of the sampling piston is further controlled by the rotation of an electrical motor connected to the sample piston by mechanical linkage such that the rotation of the electric motor in either direction translates to lateral movement of the sample piston, the lateral movement of the sample piston in turn allowing sample to enter the sample receptacle, and wherein once an adequate volume of sample has been collected, reversing the direction of the electrical motor will serve to cause the sample piston to

Abstract: A sampling tool to sample formation fluids in a wellbore is disclosed. The sampling tool may include a sample chamber having a fluid inlet port and a tubular portion. A first piston may be sealably and movably disposed within the tubular portion. One or more surfaces of the first piston and the sample chamber may, at least in part, define a sample space. A second piston may be sealably and movably disposed within the first piston.

Abstract: Apparatus and method for collecting and preserving in representative condition a fluid sample from a reservoir which comprises: positioning a sample receptacle in the vicinity of a subterranean zone to be sampled, allowing or causing the sample to first flow into the sample receptacle, wherein the movement of the sample into the sample receptacle is restricted by the movement of a sampling piston, and wherein the movement of the sampling piston is further controlled by the rotation of an electrical motor connected to the sample piston such that the rotation of the electric motor translates to lateral movement of the sample piston, the lateral movement of the sample piston in turn allowing sample to enter the sample receptacle, and wherein once an adequate volume of sample has been collected, reversing the direction of the electrical motor will serve to cause the sample piston to exert pressure on the collected sample.

Abstract: Apparatus and method for collecting and preserving in representative condition a fluid sample from a reservoir which comprises: positioning a sample container including a sampler in the vicinity of a subterranean zone to be sampled, and wherein the step of collecting and preserving the sample comprises allowing or causing the sample to first flow into the sample receptacle, wherein the movement of the sample into the sample receptacle is restricted by the movement of a sampling piston, and wherein the movement of the sampling piston is further controlled by the rotation of an electrical motor connected to the sample piston by mechanical linkage such that the rotation of the electric motor in either direction translates to lateral movement of the sample piston, the lateral movement of the sample piston in turn allowing sample to enter the sample receptacle, and wherein once an adequate volume of sample has been collected, reversing the direction of the electrical motor will serve to cause the sample piston to

Abstract: A method is presented for analyzing a multiphase fluid flowing through a tubular. A sample fluid flow of multiphase fluid (a mixture of some combination of gas, liquid and solid) is separated from a primary tubular, such as with a probe which traverses the tubular. At least one property of the multiphase fluid is determined using at least one multivariate optical element (MOE) calculating device. Measured properties include the presence, proportional amount, mass or volumetric flow rate, and other data related to a constituent of the fluid, such as CO2, H2S, water, inorganic and organic gases and liquids, or group of constituents of the fluid, such as SARA, C1-C4 hydrocarbons, etc. The multiphase fluid is preferably mixed prior to analysis. Additional data can be gathered and used to calculate derivative information, such as mass and volumetric flow rates of constituents in the tubular, etc.

Abstract: An apparatus for collecting a fluid sample from a reservoir contains a sample gathering chamber, a motor driven hydraulic pump, a motor mechanically coupled to the hydraulic pump, an electronic controller for influencing the actions of the motor, and a power source for running the motor. A piston which is sealably and movably disposed may be located within a tubular portion defining the sample gathering chamber. The apparatus may also further contain a metering component for regulating pressure.

Abstract: An assembly capable of being disposed in a subterranean bore for obtaining a fluid sample is described. The assembly can include an apparatus having a sample chamber and a housing encasing the sample chamber and providing a pressure source. The pressure source can be disposed of in an annulus defined by the sample chamber and the housing. The assembly can be attached to a slick line or wire line and conveyed into a wellbore.

Abstract: Apparatus and method for collecting and preserving in representative condition a fluid sample from a reservoir which comprises: positioning a sample receptacle in the vicinity of a subterranean zone to be sampled, allowing or causing the sample to first flow into the sample receptacle, wherein the movement of the sample into the sample receptacle is restricted by the movement of a sampling piston, and wherein the movement of the sampling piston is further controlled by the rotation of an electrical motor connected to the sample piston such that the rotation of the electric motor translates to lateral movement of the sample piston, the lateral movement of the sample piston in turn allowing sample to enter the sample receptacle, and wherein once an adequate volume of sample has been collected, reversing the direction of the electrical motor will serve to cause the sample piston to exert pressure on the collected sample.

Abstract: A method is presented for analyzing a multiphase fluid flowing through a tubular. A sample fluid flow of multiphase fluid (a mixture of some combination of gas, liquid and solid) is separated from a primary tubular, such as with a probe which traverses the tubular. At least one property of the multiphase fluid is determined using at least one multivariate optical element (MOE) calculating device. Measured properties include the presence, proportional amount, mass or volumetric flow rate, and other data related to a constituent of the fluid, such as CO2, H2S, water, inorganic and organic gases and liquids, or group of constituents of the fluid, such as SARA, C1-C4 hydrocarbons, etc. The multiphase fluid is preferably mixed prior to analysis. Additional data can be gathered and used to calculate derivative information, such as mass and volumetric flow rates of constituents in the tubular, etc.

Abstract: A method is presented for analyzing a multiphase fluid flowing through a tubular. A sample fluid flow of multiphase fluid (a mixture of some combination of gas, liquid and solid) is separated from a primary tubular, such as with a probe which traverses the tubular. At least one property of the multiphase fluid is determined using at least one multivariate optical element (MOE) calculating device. Measured properties include the presence, proportional amount, mass or volumetric flow rate, and other data related to a constituent of the fluid, such as CO2, H2S, water, inorganic and organic gases and liquids, or group of constituents of the fluid, such as SARA, C1-C4 hydrocarbons, etc. The multiphase fluid is preferably mixed prior to analysis. Additional data can be gathered and used to calculate derivative information, such as mass and volumetric flow rates of constituents in the tubular, etc.

Abstract: A computer accepts dead-oil properties of a reservoir fluid sampled from a well. The dead-oil properties are the measured composition of the reservoir fluid after volatile components of the reservoir have substantially vaporized. The computer analyzes the dead-oil properties and a constraint to produce estimated live-oil properties of the reservoir fluid. The live-oil properties are the composition of the reservoir before the volatile components have substantially vaporized. The computer uses the estimated live-oil properties to make a decision regarding the well.

Abstract: A sampling tool to sample formation fluids in a wellbore is disclosed. The sampling tool may include a sample chamber having a fluid inlet port and a tubular portion. A first piston may be sealably and movably disposed within the tubular portion. One or more surfaces of the first piston and the sample chamber may, at least in part, define a sample space. A second piston may be sealably and movably disposed within the first piston.

Abstract: An assembly capable of being disposed in a subterranean bore for obtaining a fluid sample is described. The assembly can include an apparatus having a sample chamber and a housing encasing the sample chamber and providing a pressure source. The pressure source can be disposed of in an annulus defined by the sample chamber and the housing. The assembly can be attached to a slick line or wire line and conveyed into a wellbore.