Deep well pumping apparatus
AssigneeWeatherford International, Inc.
InventorWilliam Bruce Morrow
Life of this patent
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Abstract
A fluid recovery system for producing subsurface oil and water deposits comprises a high capacity pump such as a high capacity centrifugal pump that is immersed within the deposit, a well casing that extends into the deposit from the surface, a source of rotatory motion power, and a power transmission system that connects the power source and the pump in the well casing. The power transmission system includes a step up transmission and a rod string which interconnects the power source and the step up transmission to deliver rotary motion to the step up transmission. The pump is connected to the step up transmission for delivery of higher speed rotary power to the pump. A method of operating the fluid recovery system is also disclosed.
Claims19
Fluid recovery system comprising:
- high capacity pump;
- rotary power unit;
- and
- transmission assembly coupling said rotary power unit and said high capacity pump, said transmission assembly comprising a step up transmission being coupled to said high capacity pump, said transmission assembly further comprising a rod string, said rod string coupling at one end to said rotary power unit and coupling at said other end to said step up transmission without offset.
Fluid recovery system for use in producing fluid from a relatively deep, subsurface deposit, comprising:
- high capacity pump, said pump configured and dimensional for immersion within said deposit;
- source of motive power, disposed on the surface, for producing rotary motion;
- and
- power transmission assembly interconnecting said power source and said high capacity pump, said power transmission assembly including a step up transmission coupled to said pump, a rod string interconnecting said power source and said step up transmission without offset for delivering rotary motion to said step up transmission.
Fluid recovery system for use in producing oil from a relatively deep, subsurface deposit, comprising:
- high capacity pump, said pump configured and dimensional for immersion within said oil deposit;
- well casing extending from the surface and into the oil deposit;
- source of motive power, disposed on the surface, for producing rotary motion;
- power transmission assembly interconnecting said power source and said high capacity pump within said well casing, said power transmission assembly including a step up transmission having at least one gear, a rod string interconnecting said power source and said step up transmission wherein said rod string is coupled to said at least one gear of said step up transmission without offset for delivering rotary motion to said step up transmission, and said step up transmission being connected to said pump so as to deliver a relatively higher speed rotary power to said pump.
Method for recovering fluid from a subsurface deposit comprising:
- providing a high capacity pump;
- providing a rotary power unit;
- and
- transmitting rotary power from said rotary power unit to said high capacity pump through a transmission assembly coupling said rotary power unit and said high capacity pump, said transmission assembly comprising a step up transmission being coupled to said high capacity pump, said transmission assembly further comprising a rod string, said rod string coupling at one end to said rotary power unit and coupling at said other end to said step up transmission without offset.
Dependencies are inferred from the claim text.