Abstract: A method of determining wettability may include: measuring an electrical property of a drilling fluid; and correlating the electrical property to wettability.

Abstract: Methods and compositions for the use of thermally responsive lost circulation materials in subterranean formations are provided. In one embodiment, the methods include introducing a treatment fluid including a base fluid and a thermally responsive lost circulation material including a thermally responsive hydrogel that includes at least one thermoresponsive polymer into a wellbore penetrating at least a portion of a subterranean formation including a loss zone; allowing the thermally responsive lost circulation material to reach a thickening transition temperature; and allowing the treatment fluid to at least partially set in the subterranean formation.

Abstract: Disclosed are methods in which measurements are obtained from a plurality of sensors secured in spaced relation to one another across at least a portion of the depth of reservoir of some form in order to identify one or more characteristics of the fluids within the reservoir. The sensors are used to monitor ambient forces exerted by fluids within the tank proximate each sensor. An example mechanism for obtaining the measurements includes a plurality of sensors, such as strain gauges, supported on a structure that supports the sensors in fixed relation to one another, and can, in some examples, support the sensors in a known relation relative to boundaries of the reservoir.

Abstract: Methods and systems for managing dielectric properties of a pulsed power drilling fluid are provided. In one embodiment, the methods include introducing a drilling fluid into a drilling pipe that extends into a portion of a wellbore; separating the drilling fluid into a solids rich portion and a solids lean portion in the drilling pipe at a location proximate to a pulsed power drill bit; allowing the solids lean portion of the drilling fluid to flow through the pulsed power drill bit; and drilling at least a portion of a wellbore. In some embodiments, the methods and systems include passing the drilling fluid through one or more hydrocyclones. In some embodiments, the methods and systems include passing the drilling fluid through one or more centrifuges.

Abstract: Fluid properties like viscosity, yield strength, and density may be measured by analyzing fluid motion in response to disturbing the surface of the fluid. For example, a method may include disturbing a surface of a fluid in one or more locations, thereby forming a deformation and waves at the surface of the fluid for the one or more locations; imaging and measuring at least one selected from the group consisting of the deformation, the waves, and a combination thereof; and calculating a property of the fluid based on the at least one selected from the group consisting of the deformation, the waves, and a combination thereof, the property selected from the group consisting of viscosity, yield strength, density, and any combination thereof.

Abstract: A method of measuring a fluid's viscosity may include: flowing the fluid through a conduit wherein the conduit comprises shear stress sensors operable to measure shear stress on a wall of the conduit; measuring shear stress using the shear stress sensors; and calculating a viscosity of the fluid based at least in part on the measured shear stress.

Abstract: Wall sealing and penetrator apparatus for use in penetrating walls in dangerous conditions. An example wall sealing and penetrator apparatus includes a first portion comprising: a first housing, a first sealing element, a first vacuum port; and a second portion comprising, a second housing, a second sealing element, a second vacuum port, and a cutting element.

Abstract: Methods of sculpting a hard material. An example method includes providing a pulsed power apparatus comprising: an articulated arm; a pulsed power drill bit comprising two electrodes and coupled to the articulated arm; and a power generator coupled to the two electrodes. The method further includes positioning the pulsed power drill bit such that at least one of the electrodes contacts the hard material; submerging the electrodes in a dielectric fluid; and discharging a high voltage pulse from at least one of the electrodes such that the discharged high voltage pulse passes through the hard material.

Abstract: Systems and methods for determining the composition of a drilling fluid using electro-rheology may be provided. A method for drilling a wellbore may include: circulating a drilling fluid in a wellbore; extending the wellbore into one or more subterranean formations; measuring impedance of at least a portion of the drilling fluid over time as one or more particulate additives in the drilling fluid settle; determining one or more model elements of an equivalent circuit model for modeling frequency responses of the drilling fluid from the impedance; and determining sag behavior of the drilling fluid based, at least partially, on the one or more model elements.

Abstract: A lubricity tester unit may comprise a housing, a shaft, wherein a first end of the shaft is disposed at a first end of the housing, wherein the shaft extends through housing along a central axis of the housing, and an encoder, wherein the encoder is disposed on an internal wall of the housing, wherein the shaft is disposed through a hole in the encoder, wherein the encoder is an optical encoder configured to measure angular position of the shaft. The lubricity tester unit may further comprise rotating rings, wherein the rotating rings are coupled to a second end of the shaft, a friction inducing surface, wherein the friction inducing surface is disposed around the rotating rings, a first sensor, wherein the first sensor is disposed through the housing, and a second sensor, wherein the second sensor is disposed through the housing.

Abstract: Systems and methods for measurement of the oil content in oil-based drilling may be provided in accordance with embodiments of the present disclosure. A method for measuring oil content of an oil-based drilling fluid may include providing a sample of the oil-based drilling fluid. The method may further include performing electro impedance spectroscopy on the sample by a process that comprises applying an alternating electric current to the sample and measuring a response of sample to obtain electro impedance spectroscopy measurements. The method may further include determining an estimate of the oil content of the sample based, at least partially on the electro impedance spectroscopy measurements.

Abstract: Systems and methods for measurement of the oil, water, and/or solids concentration in oil-based drilling fluids may be provided in accordance with embodiments of the present disclosure. An example method for monitoring oil-based drilling fluids may include providing a sample of an oil-based drilling. The method may further include determining an estimate of an oil concentration of the sample. The method may further include measuring thermal conductivity of the sample. The method may further include determining an estimate of solids concentration of the sample from a correlation that relates the oil concentration, the thermal conductivity, and the solids concentration.

Abstract: A system or method for monitoring drilling fluid. The system may comprise a fluid supply, wherein the fluid supply houses a drilling fluid, a pump, wherein the pump is fluidly connected to the fluid supply, a dispensation unit, wherein the dispensation unit is fluidly connected to the pump, and a process vessel, wherein the process vessel is fluidly coupled to the dispensation unit. The dispensation unit may comprise a housing, wherein the housing may comprise an internal cavity, an inlet, and an outlet. The dispensation unit may further comprise a top plate, wherein the top plate is configured to form a seal over the housing, and a diaphragm, wherein the diaphragm is disposed between the top plate and the housing. A method may comprise pumping the drilling fluid through a dispensation unit, actuating the dispensation unit, and determining a property of the drilling fluid.

Abstract: A method including contacting a stream including water with a coated porous substrate including a porous substrate coated with a hydrophilic and oleophobic coating to produce a treated water including water that passes through the coated porous substrate; and utilizing at least a portion of the treated water as a component of a hydraulic fracturing fluid.

Abstract: A torque measurement tool and method of use is presented which comprises a first outer shaft extending along a longitudinal axis and containing a second inner shaft positioned within the first outer shaft and extending along the longitudinal axis, A flexible coupling is positioned between the first outer shaft and the second inner shaft. A shear stress sensor is positioned within the second inner shaft, is exposed to the first outer shaft and contacts the flexible coupling.

Abstract: In some examples, a downhole torque measurement tool comprises a first surface of a structure and a second surface of the structure. The second surface is facing the first surface, and a shear stress sensor is positioned on the first surface. A flexible coupling is positioned between the shear stress sensor and the second surface, and the flexible coupling is coupled to the first and second surfaces.

Abstract: A method for dynamically evaluating sag of a fluid by providing a test volume of the fluid into an angled sample chamber, wherein the angled sample chamber has a central axis, and wherein the central axis of the angled sample chamber is angled relative to horizontal, rotating the sample chamber about the central axis for a test period, and determining a sag density, wherein the sag density is a density of a fluid sample taken at a sample location within a stratum of the test volume of the fluid present in the angled sample chamber.

Abstract: The disclosure presents a technique for predicting the composition of a borehole mud using a thermal conductivity parameter of the mud and a dilution liquid. The mud can be altered by conditions within the borehole, such as material, fluid, and temperature affecting the original mud composition pumped into the borehole location. The mud can be an oil-based, water-based, or another type of mud of a well system. The technique can extract a measured quantity of mud and place it into a mud container. A first thermal conductivity parameter can be calculated for the extracted mud. A dilution liquid can be mixed into the extracted mud in the mud container and a second thermal conductivity parameter calculation can be performed. From the calculated first and second thermal conductivity parameters, the composition of the mud, as well as the fractional proportions of the major components of the mud, can be predicted and computed.

Abstract: A re-sealable vessel includes a body with an open end and a lid assembly. The lid assembly includes a cap with a seal sized to seal against the open end of the body and the cap is at least partially formed from a fusible metal with a melting point less than a threshold temperature comprising a boiling point or a temperature associated with a threshold vapor pressure of a liquid contained within the body, such that when a temperature of the fusible metal exceeds the melting point, the fusible metal melts, leaving an aperture through the cap.

Abstract: In some examples, a downhole torque measurement tool comprises a first surface of a structure and a second surface of the structure. The second surface is facing the first surface and a shear stress sensor is positioned on the first surface. A flexible coupling is positioned between the shear stress sensor and the second surface, and the flexible coupling is coupled to the first and second surfaces.