Abstract: A system to power pressure pumps and auxiliary equipment for oil and gas operations. The system includes a mobile system controller and energy storage unit electrically connected to pressure pumping and auxiliary loads. The system can also include a power generation source. One application of the technology is to pump fluids to an oil and gas end user which can be an oil or gas well, pipeline or plant. The system can be modularized and can be fully mobile and transportable by a variety of means.

Abstract: A system to power pressure pumps and auxiliary equipment for oil and gas operations. The system includes a mobile system controller and energy storage unit electrically connected to pressure pumping and auxiliary loads. The system can also include a power generation source. One application of the technology is to pump fluids to an oil and gas end user which can be an oil or gas well, pipeline or plant. The system can be modularized and can be fully mobile and transportable by a variety of means.

Abstract: A pump for pumping fluid down a well bore in a rock formation comprises: intake and discharge passages; a pumping chamber with a plunger therein; intake and discharge valve assemblies in the intake passage and the discharge passages. At least one valve assembly has a valve body movable into sealing contact with the valve seat by fluid pressure in the pumping chamber. The valve seat may have a cylindrical outer surface for mating reception in said intake passage, and a shoulder with a radially-projecting surface biased against a wall for sealing. A cushioning member may be interposed between the valve body and the valve seat. A seal may be interposed between said valve body and said valve seat, and configured so that between 35% and 60% of a sealing surface of said valve seat contacts the valve body.

Abstract: A method and system for stimulating underground formations is disclosed. The method includes injecting pressurized gas and low concentrations of proppant material at a rate and pressure sufficient to fracture the formation and allow for placement of the proppant in the fracture, followed by allowing the fracture to close on proppant to create a high-permeability flow channel without the use of liquid fracturing fluids or liquefied gases.

Abstract: A method and system for stimulating underground formations is disclosed. The method includes injecting pressurized gas and low concentrations of proppant material at a rate and pressure sufficient to fracture the formation and allow for placement of the proppant in the fracture, followed by allowing the fracture to close on proppant to create a high-permeability flow channel without the use of liquid fracturing fluids or liquefied gases.