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Electrically driven cementing equipment and adjusting method

A cementing and equipment technology, applied in the field of electric drive cementing equipment and adjustment, can solve the problems of insufficient installed power, low explosion-proof level, limited installation space, etc., and achieve the goal of improving working capacity, reducing labor costs, and reducing work intensity Effect

Inactive Publication Date: 2019-12-10
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cementing double-machine double-pump skid currently used by offshore oil drilling platforms uses two diesel engines as power sources, that is, the two diesel engines drive two plunger pumps respectively; however, the installed power brought by the diesel engine-driven cementing pump skid is insufficient. Limited space, low explosion-proof level, high temperature and high noise during work, equipment automation, difficulty in daily maintenance of equipment, etc. These problems are more prominent in offshore oil deepwater drilling operations

Method used

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  • Electrically driven cementing equipment and adjusting method
  • Electrically driven cementing equipment and adjusting method
  • Electrically driven cementing equipment and adjusting method

Examples

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Embodiment 1

[0030] Such as figure 1 As shown, the embodiment of the present invention provides an electric drive cementing equipment, including: a distribution board and two electric drive branches, the power distribution board supplies power to each of the electric drive branches, and each of the electric drive branches The branch circuit includes frequency converters, variable frequency motors, gearboxes, and cementing pumps connected in sequence; the industrial liquid pumped by the cementing pumps of the two electric drive branches is combined and then discharged, and the speed of the variable frequency motor is obtained according to the obtained The frequency conversion parameters are determined.

[0031] In the exemplary embodiment of the present invention, a variable frequency motor is used to drive, and the power distribution board supplies power to two frequency converters respectively. The frequency converter 1 supplies power to the variable frequency motor 1 and controls the rot...

Embodiment 2

[0041] Such as figure 2 As shown, the embodiment of the present invention provides an adjustment method of electric drive cementing equipment, which is applied to the above electric drive cementing equipment, including:

[0042] S101. Obtain the frequency conversion parameters of the frequency converter;

[0043] S102. Determine the rotational speed of the variable frequency motor according to the variable frequency parameters;

[0044] S103. The frequency conversion motor drives the cementing pump to work, and the pumped industrial liquids are combined and then discharged.

[0045] In the embodiment of the present invention, the acquisition of frequency conversion parameters of the frequency converter in step S101 includes one of the following:

[0046] Accept the frequency conversion parameters set by the user;

[0047] The density parameters, pressure parameters, and displacement parameters of the pumped industrial liquid are detected, and the frequency conversion param...

Embodiment 3

[0049] With the rapid development of the international oil economy, international and domestic laws and regulations have increasingly increased safety requirements for operations in potentially dangerous areas. Especially in the past two years, the technical requirements for bidding clearly require service companies or manufacturers to provide petroleum equipment that can operate in Zone II environments. In actual oil field drilling operations, especially on offshore drilling platforms, equipment is inevitably in such a dangerous environment due to limitations of the site and installation. The electric drive cementing equipment provided by the embodiment of the present invention has explosion-proof requirements and an operating environment in a hazardous area; the electric drive cementing equipment provided by the embodiment of the present invention can be used for operations in hazardous areas and meet the explosion-proof function.

[0050] For electric drive cementing equipm...

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Abstract

The invention discloses an electrically driven cementing equipment and an adjusting method. The electrically driven cementing equipment comprises a power board and two electrically driven branches. The power board supplies power to each electrically driven branch. Each electrically driven branch comprises a frequency converter, a variable-frequency motor, a gearbox and a cementing pump which are sequentially connected. Industrial liquid pumped out by the cementing pumps of the two electrically driven branches is converged and then discharged. The rotation speed of each variable-frequency motoris determined according to obtained frequency conversion parameters. With the variable-frequency motors as the power source, the cementing pumps are driven, and short-range or remote control of cementing operation is achieved.

Description

technical field [0001] The embodiment of the present invention relates to well cementing control technology, especially an electric drive well cementing equipment and adjustment method. Background technique [0002] The cementing double-machine double-pump skid currently used by offshore oil drilling platforms uses two diesel engines as power sources, that is, the two diesel engines drive two plunger pumps respectively; however, the installed power brought by the diesel engine-driven cementing pump skid is insufficient. Limited space, low explosion-proof level, high temperature and high noise during work, equipment automation, difficulty in daily maintenance of equipment, etc. These problems are more prominent in offshore oil deepwater drilling operations. Contents of the invention [0003] The embodiment of the present invention provides an electric drive cementing equipment and an adjustment method, which uses a variable frequency motor as a power source to drive a cemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B17/03F04B51/00F04B49/06F04B53/08E21B33/13
CPCE21B33/13F04B17/03F04B49/06F04B51/00F04B53/08
Inventor 侯林廖明刘洪李李斌杨力沛雷彪于海安王同友张冉张贵磊
Owner CHINA NAT OFFSHORE OIL CORP