Abstract: A security sensor is provided which has a container body and a signal acquisition and processing module housed in the container body. The signal acquisition and processing module has a piezoelectric transducer configured to convert a mechanical stress to which the piezoelectric transducer is subjected into a first electrical signal, an accelerometric transducer configured to convert an acceleration to which the accelerometric transducer is subjected into a second electrical signal, and processing unit operatively connected to the piezoelectric transducer and to the accelerometric transducer for receiving the first and second electrical signals. The accelerometric transducer is a MEMS accelerometric transducer.

Abstract: A methodology for modeling multi-well communication considering multiple flow regimes for hydrocarbon management is disclosed. Understanding well communication scenarios in unconventional reservoirs may assist in assessing hydrocarbon asset development planning. Typically, well communication is determined by using a suitably-designed interference test, wherein the observation well is kept closed and the choke of a neighboring signal well is manipulated, with the resulting deviation in the pressure trend being used to determine the well communication. The interference test is not suitable due to requiring wells to be closed and to being applicable to only certain types of wells. Thus, a producer-producer connectivity model is used to analyze well communication and to quantify well communication strength.

Abstract: A security sensor is provided which has a container body and a signal acquisition and processing module housed in the container body. The signal acquisition and processing module has a piezoelectric transducer configured to convert a mechanical stress to which the piezoelectric transducer is subjected into a first electrical signal, an accelerometric transducer configured to convert an acceleration to which the accelerometric transducer is subjected into a second electrical signal, and processing unit operatively connected to the piezoelectric transducer and to the accelerometric transducer for receiving the first and second electrical signals. The accelerometric transducer is a MEMS accelerometric transducer.

Abstract: A method of backfilling a subsurface formation that includes forming a mixture tailings from at least two sources that have particles with different size distributions. The water content of the mixture is varied to control the rheology of the mixture. The mixture is injected through one or more pipes into a target location, such as a subsurface formation.

Abstract: A calibration standard or check plug provides calibration standards in the permeability range of 10-10,000 nanoDarcy. The check plug is of similar exterior dimensions to a core sample that would be used with existing permeameters. The check plug is constructed from an impermeable material that is insensitive to moisture. The check plug has one or more channels of known diameter from which the permeability may be calculated. Methods for use thereof and methods of manufacture thereof are also disclosed.

Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.

Abstract: Methods for hydrocarbon recovery from a subsurface formation include removing a mixture comprising hydrocarbons and particulate solids from a first formation. At least a portion of the hydrocarbons are separated from the particulate solids. The particulate solids are separated into a plurality of streams. A mixed slurry comprising a first portion of the plurality of streams is injected through a first pipe into the first formation. A waste stream comprising a second portion of the plurality of streams is injected through a second pipe into a second formation. The first formation and the second formation lie in a substantially vertical line.

Abstract: An embodiment of the present techniques provides a method of injecting a particulate mixture into a target location. The method includes forming a mixture of at least two sources of particles with different size distributions wherein the mixture of solids has a permeability in a predefined range. A water content of the mixture is varied to control the rheology of the mixture. The particles are injected through one or more pipes into a target location.

Abstract: A calibration standard or check plug provides calibration standards in the permeability range of 10-10,000 nanoDarcy. The check plug is of similar exterior dimensions to a core sample that would be used with existing permeameters. The check plug is constructed from an impermeable material that is insensitive to moisture. The check plug has one or more channels of known diameter from which the permeability may be calculated. Methods for use thereof and methods of manufacture thereof are also disclosed.

Abstract: Methods and systems for recompacting a hydrocarbon reservoir to prevent override of a fill material are provided. An exemplary method includes detecting a slurry override condition and reducing a pressure within the reservoir so as to reapply a stress from an overburden.

Abstract: Methods for hydrocarbon recovery from a subsurface formation include removing a mixture comprising hydrocarbons and particulate solids from a first formation. At least a portion of the hydrocarbons are separated from the particulate solids. The particulate solids are separated into a plurality of streams. A mixed slurry comprising a first portion of the plurality of streams is injected through a first pipe into the first formation. A waste stream comprising a second portion of the plurality of streams is injected through a second pipe into a second formation. The first formation and the second formation lie in a substantially vertical line.

Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.

Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.

Abstract: An improved method of producing hydrocarbons from a subterranean formation in which a solids-stabilized emulsion (SSE) is formed, the SSE comprising oil as a first liquid, droplets of a second liquid suspended in the oil, and solid particles that are insoluble in both the oil and the second liquid at the conditions of the subterranean formation. The SSE with dissolved gas is injected into the subterranean formation as a drive fluid, and at least a portion of the SSE is placed into one or more area of the subterranean formation having an in situ pressure sufficiently lower than the selected partial pressure to permit evolution of at least a portion of the gas from the oil. Furthermore, a method of making the foamy SSE is also provided.

Abstract: A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.

Abstract: An improved method of producing hydrocarbons from a subterranean formation in which a solids-stabilized emulsion (SSE) is formed, the SSE comprising oil as a first liquid, droplets of a second liquid suspended in the oil, and solid particles that are insoluble in both the oil and the second liquid at the conditions of the subterranean formation. The SSE with dissolved gas is injected into the subterranean formation as a drive fluid, and at least a portion of the SSE is placed into one or more area of the subterranean formation having an in situ pressure sufficiently lower than the selected partial pressure to permit evolution of at least a portion of the gas from the oil. Furthermore, a method of making the foamy SSE is also provided.