Abstract: A method can include receiving input that includes time series data from pump equipment at a wellsite, where the wellsite includes a wellbore in contact with a fluid reservoir; processing the input using a first trained machine learning model as an anomaly detector to generate output; and processing the input and the output using a second trained machine learning model to predict a survival function for the pump equipment.

Abstract: A well system and a related method are discussed. The well system, in one aspect, includes a wellbore extending through a subterranean hydrocarbon producing zone, as well as production tubing located in the wellbore, the production tubing including a first inflow control valve configured to regulate a first inflow of hydrocarbons from the subterranean hydrocarbon producing zone into the production tubing. The well system, in accordance with this aspect, further includes a flange coupled to the production tubing and having a fitting positioned proximate a downhole end thereof, and a fiber optic cable installed within the wellbore, an end connector of the fiber optic cable coupled end to end with the fitting of the flange to fix the fiber optic cable relative to the first inflow control valve.

Abstract: A pressure control assembly can include an outer housing and a rotating control device including a bearing assembly with a rotatable inner barrel, a pressure sensor and one or more magnetic field generators, and at least two seal elements configured to seal between the inner barrel and a tubular positioned in the pressure control assembly. A magnetic field detector secured to the outer housing is configured to receive signals from the magnetic field generators, the signals being indicative of outputs of the pressure sensor. A method can include securing a magnetic field detector to an outer housing, installing the rotating control device in the outer housing, the rotating control device comprising a rotatable inner barrel, a pressure sensor and multiple magnetic field generators, and transmitting signals indicative of outputs of the pressure sensor from the magnetic field generators to the magnetic field detector.

Abstract: Method is provided for preventing fluid from entering a well, such as a producing well, during a hydraulic fracturing treatment in another well completed in the same reservoir. Degradable ball sealers or degradable particulate material is injected into the well and pressure is maintained in the well during the fracturing treatment to prevent influx of fluid.

Abstract: System, method, and apparatus for classifying fracture quantity and quality of fracturing operation activities during hydraulic fracturing operations, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the fracking wellhead into an electrical signal; a memory configured to store the electrical signal; a converter configured to access the electrical signal from the memory and convert the electrical signal in a window of time into a current frequency domain spectrum; a machine-learning system configured to classify the current frequency domain spectrum, the machine-learning system having been trained on previous frequency domain spectra measured during previous hydraulic fracturing operations and previously classified by the machine-learning system; and a user interface configured to return a classification of the current frequency domain spectrum to an operator of the fracking wellhead

Abstract: A process for providing steam from a steam source to a well located remote from the steam source, includes heating a first portion of a first pipe by directing steam along the first portion of the first pipe that extends along a first segment of a path between the steam source and the well, across a first cross-over pipe, and back to the steam source, along a first portion of a second pipe that extends along the first segment of the path. The process also includes heating a second portion of the first pipe by directing steam along the first portion and the second portion of the first pipe, across a second cross-over pipe, and back to the steam source along a second portion of the second pipe. The first pipe and the second pipe are utilized to transport steam to the well.

Abstract: Fracturing or fracking fluids for fracturing a subterranean reservoir for hydrocarbon recovery and related methods are described. The fluid comprises lignin, in particular technical lignin, and at least one strain of bacteria capable of biosurfactant production and/or a biosurfactant produced by at least one such isolated strain of bacteria. Also described is a fracturing method for recovering hydrocarbons from a subterranean formation.

Abstract: A method of subsurface sequestration of CO2 in a subsurface formation, the method including: producing formation water and hydrocarbons from a first well located within the first region while concurrently injecting an aqueous CO2 solution into a second well located within the second region, wherein the subsurface formation comprises a first region and a second region, the first region and the second region being fluidly connected, and the second region is at a greater depth than the first region and comprises at least one of the subsurface sequestration locations; and allowing the aqueous CO2 solution to sink as a negatively buoyant fluid below the formation water and the hydrocarbons, thereby sequestering the CO2 in the second region of the subsurface formation and wherein the aqueous CO2 solution has a greater density than the formation water and the hydrocarbons, making the aqueous CO2 solution negatively buoyant in the subsurface formation.

Abstract: Implementations relate to treatment of a petroleum reservoir to produce a hydrogen-bearing gas. Implementations may include methods and systems for processing a reservoir to generate hydrogen in-situ and produce a large fraction of the generated hydrogen to the surface. Processing the reservoir may include injecting oxygen into the reservoir to enable combustion within the reservoir to create heat and carbon monoxide in the reservoir. The heat may generate steam from both boiling of in-situ formation water and steam generated from the oxidation reactions. The generated heat may enable gasification, steam reforming, and aquathermolysis reactions and both the heat and carbon monoxide enables the water-gas shift reaction. Each such reaction may generate hydrogen within the reservoir.

Abstract: Fracturing subterranean formation to produce hydrocarbons requires fracturing fluids. These fluids contain proppant particles. A system and method for making and using ultralight weight proppant particles includes a composite of a precipitated polymer matrix and a plant-based material, wherein the precipitated polymer matrix includes a thermoplastic, and wherein the plant-based material includes microparticles.

Abstract: A method for improved borehole completion. In one embodiment, the method comprises removing a section of casing entirely and cutting a notch through the cement and into the surrounding rock formation, wherein the notch optimally comprise a symmetric triangle terminating in a sharp point oriented perpendicular to the casing axis. Flow may be further optimized by extending the notch as far as practical into the rock matrix to increase the effective diameter of the wellbore and increase the length of the intersection between the fracture and the wellbore.

Abstract: Hydrogen foams may be used for placing and maintaining hydrogen in a subterranean location. For example, methods for introducing hydrogen to a subterranean location may include: placing a hydrogen foam in a subterranean location, in which the hydrogen foam comprises a continuous phase generated from a foamable composition comprising an aqueous fluid and a discontinuous phase comprising at least hydrogen gas; and maintaining the hydrogen foam in the subterranean location.

Abstract: A seal includes a seal body and a temperature controller in thermal communication with the seal material. A method for controlling temperature of a seal including applying an energy source to the temperature controller, and generating a temperature difference in the temperature controller. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a seal tool disposed within or as part of the string.

Abstract: A composition for consolidating a carbonate-based formation includes a zinc metalloenzyme and calcium carbonate. A method for consolidating a carbonate-based formation to mechanically enhance the formation, includes injecting a fracture within the formation with the composition.

Abstract: A system includes a control system disposed on a well surface and a pipe component disposed in a wellbore to form an annulus that is in fluid communication with a reservoir. The system includes a valve in fluid communication with the annulus. The system includes a recorder configured to detect data of the annulus. The system includes a fluid conduit configured to flow annular fluid from one or more annuli disposed in the wellbore. The fluid conduit is in fluid communication with the annulus, the valve, and a relief tank. The system includes a communication cable coupled to the control system, the valve, and the recorder. The recorder is configured to transmit the data to the control system.

Abstract: A distributed acoustic system (DAS) may include at least one laser that transmits a continuous wave (CW) light, a pulser optically connected to the at least one laser to receive the CW light from the at least one laser and form a light pulse, and a splitter optically connected to the pulser to optically split the light pulse into a plurality of light pulses. The DAS may further comprise a circulator optically connected to an output of the splitter, a sensor fiber attached to the circulator, and a reference coil disposed on the sensor fiber between the circulator and a first section. A method for using the DAS may include transmitting one or more light pulses from a laser into the DAS, generating an interrogator specific noise profile for the reference wellbore, and generating an application specific noise profile for a first sensor fiber disposed in the reference wellbore.

Abstract: The subject invention provides microbe-based products, as well as their use to improve oil production and refining efficiency by, for example, remediating the disposable layers in oil tanks and other oil storage units. In preferred embodiments, the microbe-based products comprise biochemical-producing yeast and growth by-products thereof, such as, e.g., biosurfactants. The subject invention can be used to remediate rag layer and/or other dissolved solid layers that form in water-oil emulsions. Furthermore, the subject invention can be used for remediating solid impurities, such as sand, scale, rust and clay, in produced water, flow-back, brine, and/or fracking fluids.

Abstract: Fracturing fluids for treating subterranean formations. An example fracturing fluid includes an anti-syneresis agent, a water-soluble terpolymer, a terpolymer hydration aid, an antioxidizing agent, a metal crosslinking agent, a breaker, and an aqueous base fluid. The fracturing fluid is introduced into a wellbore penetrating the subterranean formation at a pressure sufficient to fracture the subterranean formation and the subterranean formation is fractured with the fracturing fluid.

Abstract: Fracturing or fracking fluids for fracturing a subterranean reservoir for hydrocarbon recovery and related methods are described. The fluid comprises lignin, in particular technical lignin, and at least one strain of bacteria capable of biosurfactant production and/or a biosurfactant produced by at least one such isolated strain of bacteria. Also described is a fracturing method for recovering hydrocarbons from a subterranean formation.

Abstract: A method of producing a cementitious material includes combining a reaction mixture to form a slurry and curing the slurry to form the cementitious material. The reaction mixture may include a mineral mixture, an organic compound, and CO2. The mineral mixture may include calcium and the organic compound may be 3,4-dihydroxyphenethylamine, methyl salicylate, or both.