Linear electric motor for an oilfield pump

a linear electric motor and oilfield pump technology, applied in the direction of positive displacement liquid engine, fluid removal, borehole/well accessories, etc., can solve the problem of inherently high operating costs of wells, insufficient output, and inability to reliably achieve the output level of the pump. the problem of insufficient output is not easy to solve, and the output of conventional large-scale equipment is difficult to achieve. the problem of imprecise manner and high cost of capital equipment expenditures

Inactive Publication Date: 2008-10-30
SCHLUMBERGER TECH CORP
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Problems solved by technology

Thus, well operations may be inherently expensive in terms of both capital equipment expenditures and equipment maintenance.
Furthermore, in many circumstances, conventional large scale equipment tends to provide output in a fairly imprecise manner, no matter the amount of expenditures incurred.
Unfortunately, with such a large piece of equipment having numerous equipment parts playing a role in the mechanics of the pump, it may be difficult to attain a reliably precise output le

Method used

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  • Linear electric motor for an oilfield pump
  • Linear electric motor for an oilfield pump
  • Linear electric motor for an oilfield pump

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Embodiment Construction

[0014]Embodiments are described with reference to certain linear electric motor (LEM) pump assemblies, particularly for cementing operations at an oilfield. However, other operations may be addressed at the oilfield employing LEM pump assembly embodiments described herein. For example, LEM pump assemblies described herein may be employed in fracturing, drilling, dosing, and other fluid delivery operations at an oilfield. Regardless, embodiments described herein include the use of an LEM to drive an oilfield pumping assembly, as opposed to crankshaft or hydraulic driving techniques, thereby potentially reducing equipment parts and maintenance expenses and increasing the precision and control over the fluid delivery as compared to conventional crankshaft or hydraulic driven pump assemblies.

[0015]Referring now to FIGS. 1 and 2, a prior art crankshaft pump assembly 100 employing a variety of equipment for operation may be viewed in light of a linear electric motor (LEM) pump assembly 20...

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Abstract

An oilfield pump employing a linear electric motor. The linear electric motor replaces a conventional crankshaft or hydraulic techniques for driving a plunger of the pump. This may reduce the number of equipment parts and amount of maintenance expenses associated with the operation of oilfield pumps. Furthermore, the use of a linear electric motor may also increase the precision and control over the fluid delivery provided by the pump assembly.

Description

BACKGROUND[0001]Embodiments described relate to oilfield pumps for delivering a variety of oilfield fluids to a well at an oilfield. In particular, embodiments of oilfield pumps employing a linear electric motor (LEM) are described. The presence of a LEM in place of crankshaft or hydraulic driving techniques may reduce the number of equipment parts and therefore maintenance expenses dedicated to a pump assembly at an oilfield. The presence of an LEM may also increase the precision and control over the fluid delivery provided by the pump assembly.BACKGROUND OF THE RELATED ART[0002]Drilling, completing, and operating hydrocarbon wells involves the employment of a variety of large scale equipment. Thus, well operations may be inherently expensive in terms of both capital equipment expenditures and equipment maintenance. Furthermore, in many circumstances, conventional large scale equipment tends to provide output in a fairly imprecise manner, no matter the amount of expenditures incurr...

Claims

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Application Information

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IPC IPC(8): E21B43/00
CPCF04B17/042F04B17/03
Inventor OCHOA, BRIAN
Owner SCHLUMBERGER TECH CORP
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