Embodiments of systems and methods disclosed provide a hydraulic fracturing unit that includes a reciprocating plunger pump configured to pump a fracturing fluid and a powertrain configured to power the reciprocating plunger pump. The powertrain includes a prime mover and a drivetrain, the prime mover including a gas turbine engine. The hydraulic fracturing unit also includes auxiliary equipment configured to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain. A power system is configured to power the auxiliary equipment. The power system includes a power source and a power network. The power source is configured to generate power for the auxiliary equipment. The power network is coupled to the power source and the auxiliary equipment, and configured to deliver the power generated by the power source to the auxiliary equipment. Associated systems including a plurality of hydraulic fracturing units are also provided.
Drawings
Claims23
A system for fracturing a well, the system comprising:
a plurality of hydraulic fracturing units, each of the plurality of hydraulic fracturing units comprising:
a chassis;
a reciprocating plunger pump connected to the chassis and configured to pump a fracturing fluid;
a powertrain connected to the chassis and configured to power the reciprocating plunger pump, the powertrain including a direct drive gas turbine engine and a drivetrain, the direct drive gas turbine engine operable using two or more different types of fuel;
and
auxiliary equipment located onboard the chassis, the auxiliary equipment driven by electric motors to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain;
one or more electric power arrangements configured to power the auxiliary equipment of one or more of the plurality of hydraulic fracturing units, each electric power arrangement of the one or more electric power arrangements comprising an engine-generator set configured to generate electric power;
an electric power network configured to deliver electric power generated by at least one of the one or more electric power arrangements to the auxiliary equipment of the one or more of the plurality of hydraulic fracturing units, the electric power network being coupled to a first engine-generator set of a first hydraulic fracturing unit of the plurality of hydraulic fracturing units and first electric motors of the first hydraulic fracturing unit,
the electric power network being switchably connectable to one or more of a utility power grid, a battery bank, or an engine-generator set of a second hydraulic fracturing unit of the plurality of hydraulic fracturing units, and
the electric power network being configured to deliver electric power generated by the first engine-generator set to the first electric motors to drive first auxiliary equipment of the first hydraulic fracturing unit and to be switchably connected to the one or more of the utility power grid, the battery bank, or the second engine-generator set to deliver power to the first electric motors responsive to a failure or fault of the first engine-generator set;
and
a manifold connected to respective reciprocating plunger pumps of the plurality of hydraulic fracturing units, the manifold configured to deliver fracturing fluid from the respective reciprocating plunger pumps to the well;
wherein the electric power network comprises an electric bus affixed to the manifold and connecting the one or more of the plurality of hydraulic fracturing units to the first electric power arrangement to power the one or more of the plurality of hydraulic fracturing units.
10 more elements
A method of fracturing a well, the method comprising:
arranging a plurality of hydraulic fracturing units, each hydraulic fracturing unit comprising:
a chassis;
a reciprocating plunger pump connected to the chassis and configured to pump a fracturing fluid;
a powertrain connected to the chassis and configured to power the reciprocating plunger pump, the powertrain including a direct drive gas turbine engine and a drivetrain, the direct drive gas turbine engine operable using two or more different types of fuel;
and
auxiliary equipment located onboard the chassis, the auxiliary equipment driven by a plurality of electric motors to support operation of the hydraulic fracturing unit including the reciprocating plunger pump and the powertrain;
arranging one or more electric power arrangements to power the auxiliary equipment of one or more of the plurality of hydraulic fracturing units, each electric power arrangement comprising an engine-generator set configured to generate electric power;
arranging an electric power network to deliver electric power generated by at least one of the one or more electric power arrangements to the auxiliary equipment of the one or more of the plurality of hydraulic fracturing units, the electric power network comprising an electric bus coupled to a first engine-generator set of a first hydraulic fracturing unit of the plurality of hydraulic fracturing units and one or more of the plurality of electric motors of the first hydraulic fracturing unit,
the electric power network being switchably connectable to one or more of a utility power grid, a battery bank, or an engine-generator set of a second hydraulic fracturing unit of the one or more hydraulic fracturing units, and
the electric power network being configured to deliver electric power generated by the first engine-generator set to the one or more of the plurality of electric motors of the first hydraulic fracturing unit to drive first auxiliary equipment of the first hydraulic fracturing unit and to be switchably connected to the one or more of the utility power grid, the battery bank, or the engine-generator set of the second hydraulic fracturing unit to deliver power to the one or more of the plurality of electric motors of the first hydraulic fracturing unit responsive to a failure or fault of the first engine-generator set;
connecting a manifold to respective reciprocating plunger pumps of the plurality of hydraulic fracturing units, the manifold being configured to deliver fracturing fluid from the respective reciprocating plunger pumps to the well;
affixing the electric bus of the electric power network to the manifold;
operating a first powertrain of the first hydraulic fracturing unit to power a first reciprocating plunger pump of the first hydraulic fracturing unit to pump the fracturing fluid, and
operating the first electric power arrangement to power the first auxiliary equipment.
5 Jun 2040Estimated · howhide20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.
Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts: the fluids being viscous or non-homogeneous
Life of this patent
About 13 years 7 months of term left · ends 5 Jun 2040 (estimated)
Priority13 Sep 2019
Granted1 Feb 2022
Today12 Oct 2026
Term ends5 Jun 2040
Priority13 Sep 2019
Granted1 Feb 2022
Term ends5 Jun 2040
Priority claimedParent application 62/899,971
Application filedUS 17/203,002
Assigned to Bj Services, LLCassignment of assignor's interest
Assigned to Bj Energy Solutions, LLCassignment of assignor's interest
PublishedUS 2021/0079902 A1
Assigned to Baiwin Financing, LLCsecurity interest
GrantedUS 11,236,739 B2
Assigned to Eclipse Business Capital LLCsecurity interest
Assigned to Eclipse Business Capital LLC. AS Agentsecurity interest
TodayWithin its term
Term endsEstimated
Description11,547 words
Summary2,181 words
#This disclosure relates generally to fracturing operations for oil and gas wells, and in particular, to power sources and networks for auxiliary equipment onboard hydraulic fracturing units and associated methods.
#Fracturing is an oilfield operation that stimulates production of hydrocarbons, such that the hydrocarbons may more easily or readily flow from a subsurface formation to a well. For example, a fracturing system may be configured to fracture a formation by pumping a fracking fluid into a well at high pressure and high flow rates. Some fracking fluids may take the form of a slurry including water, proppants (e.g., sand), and/or other additives, such as thickening agents and/or gels. The slurry may be forced via one or more pumps into the formation at rates faster than can be accepted by the existing pores, fractures, faults, or other spaces within the formation. As a result, pressure builds rapidly to the point where the formation fails and begins to fracture.
#By continuing to pump the fracking fluid into the formation, existing fractures in the formation are caused to expand and extend in directions farther away from a well bore, thereby creating flow paths to the well bore. The proppants may serve to prevent the expanded fractures from closing when pumping of the fracking fluid is ceased or may reduce the extent to which the expanded fractures contract when pumping of the fracking fluid is ceased. Once the formation is fractured, large quantities of the injected fracking fluid are allowed to flow out of the well, and the production stream of hydrocarbons may be obtained from the formation.
Brief description of the drawings14 figures
#Having thus described aspects of the disclosure in the foregoing general terms, reference will now be made to the accompanying figures, which are not necessarily drawn to scale, and wherein:
#FIG. 1 is a block diagram of a system for fracturing a well according to some example implementations of the present disclosure;
#FIG. 2 is a block diagram of a hydraulic fracturing unit according to some example implementations;
Detailed description9,037 words
#Some implementations of the present disclosure will now be described more fully hereinafter with reference to the accompanying figures, in which some, but not all implementations of the disclosure are shown. Indeed, various implementations of the disclosure may be embodied in many different forms and should not be construed as limited to the implementations set forth herein; rather, these example implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like reference numerals refer to like elements throughout.
#Unless specified otherwise or clear from context, references to first, second or the like should not be construed to imply a particular order. A feature may be described as being above another feature (unless specified otherwise or clear from context) may instead be below, and vice versa; and similarly, features described as being to the left of another feature else may instead be to the right, and vice versa. Also, while reference may be made herein to quantitative measures, values, geometric relationships or the like, unless otherwise stated, any one or more if not all of these may be absolute or approximate to account for acceptable variations that may occur, such as those due to engineering tolerances or the like.
#As used herein, unless specified otherwise or clear from context, the “or” of a set of operands is the “inclusive or” and thereby true if and only if one or more of the operands is true, as opposed to the “exclusive or” which is false when all of the operands are true. Thus, for example, “[A] or [B]” is true if [A] is true, or if [B] is true, or if both [A] and [B] are true. Further, the articles “a” and “an” mean “one or more,” unless specified otherwise or clear from context to be directed to a singular form.