Novel sand mixing skid and control system thereof

A control system and sand mixing technology, which is applied in the fields of production fluids, wellbore/well components, fluid pressure actuating devices, etc., can solve the problems of high cost and incompatibility of sand mixing vehicles, save production costs and ensure quality , easy to operate and simple effect

Active Publication Date: 2014-11-19
CHENGDU WEST PETROLEUM EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the use of sand mixer is n

Method used

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  • Novel sand mixing skid and control system thereof
  • Novel sand mixing skid and control system thereof

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing, protection scope of the present invention is not limited to the following:

[0017] Such as figure 1 As shown, a new sand mixing skid and its control system include a frame 127, and the frame 127 is provided with a discharge pump 113, a suction pump 115, a mixing tank 128, and a sand supply device 117. The mixing tank 128 is provided with an agitator 119, the liquid suction pump 115 is connected to the mixing tank 128 through a pipeline, and the pipeline connecting the liquid suction pump 115 and the mixing tank 128 is provided with an inflow flow meter 133, the described The drain pump 113 is connected to the bottom of the mixing tank 128 through a pipeline, and the pipeline connecting the drain pump 113 and the mixing tank 128 is provided with a sand-carrying pump pressure sensor 132, and the outlet end of the sand supply device 117 is located at the inlet of the mixing tan...

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Abstract

The invention discloses a novel sand mixing skid and a control system of the novel sand mixing skid. The novel sand mixing skid is composed of a liquid inlet portion, a sand inlet portion, a mixing portion, a liquid drainage portion and the like. The liquid inlet amount, the liquid outlet amount and the sand inlet amount can be calculated through the detected liquid drainage amount and the set sand ratio. The liquid inlet amount and the sand inlet amount are controlled according to the height of the liquid level of a mixing tank (128). Execution elements serve as a four-piece hydraulic motor for a hydraulic system. The four-piece hydraulic motor drives a liquid suction pump (115), a liquid drainage pump (113), a sand supply device (117) and a stirring device (119). Electro-hydraulic proportional valves and electromagnetic valves serve as control elements. Work is completed through control over the sequence of the electromagnetic valves and openings of proportional valves. The novel sand mixing skid has the advantages of being low in cost, high in work efficiency and good in sand mixing effect.

Description

technical field [0001] The invention relates to a sand mixing skid, in particular to a new sand mixing skid and its control system. Background technique [0002] With the development of shale gas attracting more and more attention in China, related equipment and technology applications are more widely used, among which the application of coiled tubing operation technology is particularly prominent. However, there is a big problem with the use of coiled tubing technology, that is, when this technology is used for sandblasting and cutting, acid fracturing and other operations, the supporting equipment is sand mixing truck and fracturing truck, and the coiled tubing itself is Smaller, the flow rate used is also small (generally 1m 3’ / min), while the flow rate of the mixer truck is very large (generally 20m 3’ / min or more). Therefore, the use of sand mixer is not suitable, and the cost is too high. Contents of the invention [0003] The purpose of the present invention i...

Claims

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Application Information

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IPC IPC(8): E21B43/267F15B11/17
Inventor 赵原蒋毅张涛侯海燕
Owner CHENGDU WEST PETROLEUM EQUIP
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