Abstract: To detect the occurrence of slippage, a transmission health monitor integrates speed measurements for an engine shaft and a transmission shaft to determine a number of revolutions for each shaft. The monitor then uses a ratio of the revolutions adjusted for a transmission gear ratio to determine whether slippage has occurred. Based on the slippage, the monitor can determine a cumulative amount of wear on a clutch for each gear and track the rate of change of slippage over time to determine a rate at which wear is occurring. The monitor can also correlate slippage calculations with torque measurements to identify operating conditions at which slippage is occurring. The monitor uses the cumulative amount of slippage, the rate of change of slippage, and the operating conditions at which slippage is occurring to estimate a remaining lifespan for a clutch or indicate that a clutch should be repaired or replaced.

Abstract: A method includes operating a wellsite apparatus at a wellsite utilizing mechanical energy or electricity produced at least in part from hydrogen in a fuel source comprising hydrogen. Utilizing mechanical energy or electricity produced at least in part from the hydrogen in the fuel source comprising hydrogen can further include: (a) converting the hydrogen in the fuel source to electricity in one or more fuel cells and utilizing the electricity to operate the wellsite apparatus; and/or (b) combusting the hydrogen in the fuel source in a power generation apparatus to produce electricity and utilizing the electricity to operate the wellsite apparatus; and/or (c) combusting the hydrogen in the fuel source to produce mechanical energy and utilizing the mechanical energy to operate the wellsite apparatus. A system for carrying out the method is also provided.

Abstract: In accordance with presently disclosed embodiments, a hybrid drive system that uses multiple sources of mechanical energy to drive a pump is provided. The hybrid drive system may include a first mover for generating first mechanical energy, a pump, a drivetrain for providing first mechanical energy from the first mover to the pump, and a second mover within the drivetrain to generate and provide second mechanical energy to the pump. The multiple sources of mechanical energy may provide flexibility with respect to system design and allow for alternative sources of fuel and energy to be used to drive pumping systems. This may reduce the total diesel fuel consumption necessary to perform a well stimulation operation as well as provide for configurations in which diesel engines may be excluded from the pumping process in favor of alternative energy sources that typically do not have sufficient torque capacity to power a pump.

Abstract: System and methods of controlling fracture growth during multi-well stimulation treatments. The flow distribution of treatment fluid injected into first and second well formation entry points along multiple wellbores is monitored during a current stage of a multi-well, multistage stimulation treatment. Upon determining the fracture growth and/or monitored flow distribution meets a threshold, a remainder of the current stage is partitioned into a plurality of treatment cycles and at least one diversion phase. A portion of the fluid to be injected into the first well and/or second well formation entry points is allocated to each of the treatment cycles of the partitioned stage. The treatment cycles are performed for the remainder of the current stage using the treatment fluid allocated to each treatment cycle, wherein the flow distribution is adjusted so as not to meet the threshold.

Abstract: A valve guide for a fracturing pump valve assembly, the valve guide include a ring member having one or more blades. The one or more blades project inward from an annular ring of the ring member, a first side of the one or more blades defining a central space of the ring member, the central space configured to contain a cross-sectional portion of a valve post of the valve assembly therein and the first side extending parallel to a long axis length of the valve post. Valve assemblies and hydraulic fracturing systems including the valve guide are also disclosed.

Abstract: This disclosure presents processes for controlling a hydraulic fracturing operation at a wellbore. The processes can (1) determine a system rate-of-change of power limit (ROCL) to be supplied to one or more loads, where the system ROCL is based on an individual ROCL for one or more individual power sources; (2) determine an allowable rate-of-change (ROCA) for the one or more loads such that the system ROCL is not exceeded; and (3) control the hydraulic fracturing operation based on the ROCA for the one or more loads.

Abstract: A method for calibrating a unit controller with a managing process determining a position of a decoupler mechanism on the pumping unit. The managing process can calibrate the unit controller with a dual pump mode in response to determining the decoupler mechanism is in a coupled position. The managing process can calibrate the unit controller with a single pump mode in response to determining the decoupler mechanism is in a decoupled position with the pumping unit operating with the first fluid end coupled to the power end and the second fluid end decoupled from the power end. The system controller can pump a wellbore treatment fluid in accordance with the pumping unit in i) the dual pump mode or ii) the single pump mode.

Abstract: The disclosure provides a method and system for extracting carbon dioxide from an exhaust gas. The method includes lowering a temperature of an exhaust gas using a heat exchanger, lowering a concentration of a particulate matter within the lowered temperature exhaust gas, and passing the lowered particulate concentration and lowered temperature exhaust gas through one or more membrane modules to produce a membrane module permeate flow that contains a higher concentration of carbon dioxide compared to a concentration of carbon dioxide in the lowered particulate concentration and lowered temperature exhaust gas. Further, the system includes a heat exchanger fluidly coupled to a particulate filter that is configured to lower a concentration of the particulate matter within the exhaust gas, and one or more membrane modules fluidly coupled to the particulate filter and configured to produce the membrane module permeate flow.

Abstract: In accordance with presently disclosed embodiments, a hybrid drive system that uses multiple sources of mechanical energy to drive a pump is provided. The hybrid drive system may include a first mover for generating first mechanical energy, a pump, a drivetrain for providing first mechanical energy from the first mover to the pump, and a second mover within the drivetrain to generate and provide second mechanical energy to the pump. The multiple sources of mechanical energy may provide flexibility with respect to system design and allow for alternative sources of fuel and energy to be used to drive pumping systems. This may reduce the total diesel fuel consumption necessary to perform a well stimulation operation as well as provide for configurations in which diesel engines may be excluded from the pumping process in favor of alternative energy sources that typically do not have sufficient torque capacity to power a pump.

Abstract: Methods for operating a decoupled long stroke pump to pump treatment fluid to a wellbore are provided. The decoupled long stroke pump has relatively long stroke plungers that can be powered by hydraulics, linear electric motors, mechanical long stroke mechanisms, linear actuators, or any other device that can provide a linear force to the plungers. Such long stroke pumps have the suction and discharge strokes decoupled such that an absolute linear flow rate without pressure pulses on the suction or discharge can be produced. Any desired flow profile of the treatment fluid can be produced via the decoupled long stroke pump.

Abstract: The disclosure presents systems and methods for hot swapping pumps at a wellsite while minimizing the impact to the pumping operations. As one pump is swapped out, such as for maintenance, the remaining pumps in the set of pumps at the wellsite can continue pumping operations. In some aspects, the swapping of pumps can be performed by a user using a protection barrier to isolate the pump location where the pumps will be swapped. In some aspects, one or more of the steps to swap pumps can be performed through automation thereby minimizing danger to a user. In some aspects, the pump being located at the pump system can be primed and pressure tested prior to be located to improve the time to enable the pump for pumping operations.

Abstract: The disclosure presents systems and methods for hot swapping pumps at a wellsite while minimizing the impact to the pumping operations. As one pump is swapped out, such as for maintenance, the remaining pumps in the set of pumps at the wellsite can continue pumping operations. In some aspects, the pumps can be arranged around a central open area where the manifold pipes are located on the outside perimeter. This arrangement allows for a pump moving apparatus to remove and locate pumps at various positions around the perimeter while minimizing movement and minimizing the time the pump moving apparatus spends off of matting. The pump moving apparatus can be shielded with a protective barrier to protect the equipment or user from discharges from other pumps that are under high pressure.

Abstract: The disclosure provides a method and system for extracting carbon dioxide from an exhaust gas. The method includes lowering a temperature of an exhaust gas using a heat exchanger, lowering a concentration of a particulate matter within the lowered temperature exhaust gas, and passing the lowered particulate concentration and lowered temperature exhaust gas through one or more membrane modules to produce a membrane module permeate flow that contains a higher concentration of carbon dioxide compared to a concentration of carbon dioxide in the lowered particulate concentration and lowered temperature exhaust gas. Further, the system includes a heat exchanger fluidly coupled to a particulate filter that is configured to lower a concentration of the particulate matter within the exhaust gas, and one or more membrane modules fluidly coupled to the particulate filter and configured to produce the membrane module permeate flow.

Abstract: Embodiments of the disclosure generally concern equipment for use in operations at oil and gas wells, particularly a structure to transport and locate large diameter electrical cables, such as those used to connect turbine generators to electric pumping units on an oil and gas well site. More specifically the embodiments of the disclosure concern methods and apparatus for transporting, positioning, and manipulating large diameter power cables at the well site of oil and gas wells with a cable transport structure using longitudinal cable retaining members to create channels to store the cables and an end rack to fold extra length of the cable back onto the cable transport structure.

Abstract: To compensate for an event, equipment may require a power down sequence of a motor connected to a pump to prevent the pumping of servicing fluid at a high pressure, high pressure fluid may be required to be diverted to a reservoir or otherwise diverted from a wellhead, multiple pumping systems may require that pumping pressure be altered or adjusted or that flow rate be altered or adjust to manage or control the conditions to protect equipment or personnel at a site. Activating, adjusting or altering an operational characteristic of equipment by using a control system may automatically initiate the most efficient and effective mitigation steps for equipment at a site when condition is detected or predicted. Collecting and analyzing information from devices, components, sensors, control systems, other equipment or any combination thereof at a site by a master control system provides automated control of pressure sensitive conditions.

Abstract: The present disclosure relates generally to well operations. The present disclosure relates more particularly to a systems and methods for independently and/or simultaneously treating multiple wells from a centralized location using a split flow pumping system configuration. The split flow pumping system configuration may comprise one or more blenders, one or more boost pumps, a pumping system comprising one or more pumps, a component storage system, and a fluid storage system for treatment of two or more wells using two or more treatment compositions. The split flow pumping system configuration may comprise one or more controllers for controlling the one or more blenders, the one or more boost pumps, the pumping system comprising one or more pumps, the component storage system, and the fluid storage system.

Abstract: Various embodiments include methods and apparatus structured to pump material, where such material is difficult to pump. In an embodiment, an apparatus can include an injector device capable of self-injecting material into a high pressure line. The apparatus may include multiple valves to control recharge of material into the injector device and to control reinjection of the material into the high pressure line. In an embodiment at a well site, a portion of fluid being injected into a wellbore can be diverted from one or more high pressure pumps to an injector device, where the diverted portion of the fluid can be used to power the injector device to inject material from a mixing tank to add material to the wellbore in addition to the non-diverted portion of the fluid injected into the wellbore. Additional apparatus, systems, and methods can be implemented in a variety of applications.

Abstract: The disclosure provides for a wellbore servicing system that comprises an engine operable to provide power to one or more pumps. The one or more pumps are operable to direct a fluid into a wellbore, wherein the engine is coupled to the one or more pumps via a transmission. The system further comprises an engine control module (ECM) coupled to the engine. The system further comprises a controller coupled to the one or more pumps and operable to determine the volumetric efficiency of each of the one or more pumps. The system further comprises an information handling system, wherein the ECM and the controller are communicatively coupled to the information handling system, wherein the information handling system is operable to determine a divergence when a load is placed on the engine and a pumping plan for the system.

Abstract: A system for use in hydraulic fracturing of at least one reservoir. The system including at least one pump for injecting a friction modifier into a wellbore, at least one friction modifier controller for controlling an amount of friction modifier channeled through at least one well bore, and at least one injector. The friction modifier controller is configured to monitor at least one of a fluid flow rate and pressure associated with each wellbore, compare the at least one of the fluid flow rate and the pressure with at least one of a desired flow rate and desired pressure, and adjust a friction modifier level for at least one wellbore based on results of the comparison. The injector is configured to control the pump to deliver an amount of a friction modifier into the wellbore based on the friction modifier level.

Abstract: At a well site, equipment will need a power source, such as a gas turbine, to operate. As the gas turbine operates, wasted energy in the form of heat is produced as a result of the efficiency of the gas turbine. With regards to the present disclosure, the heat may be used for operations and treatments at the well site. An embodiment of the present disclosure is a heat recovery system, comprising a gas turbine; a first heat exchanger, wherein the first heat exchanger is a finned-tube heat exchanger; and a second heat exchanger, wherein the second heat exchanger is a tube and shell heat exchanger, wherein the first heat exchanger is disposed in the flow path of an exhaust stream of the gas turbine, wherein the first heat exchanger is fluidly coupled to the second heat exchanger.