Pre-mixing system remotely controlled

Abstract

The invention discloses a pre-mixing system remotely controlled. The pre-mixing system comprises a control unit, a water valve, a flowmeter, a cement valve, a mortar mixing tank, a liquid level meter,a mortar mixing device, a density meter and a plunger pump, wherein the water supply enters the mortar mixing tank through the flowmeter and the water valve in sequence, the cement supply is fed intothe mortar mixing tank through the cement valve, the liquid level meter is arranged in the mortar mixing tank, the liquid level meter and the flowmeter for metering clear water are used for meteringthe total amount of clear water in the mortar mixing tank together, the mortar mixing device is used for mortar mixing of the mortar mixing tank, the density meter is arranged on a circulating pipeline of the mortar mixing tank and used for monitoring the mortar density in the mortar mixing tank, and the control unit controls the water valve, the cement valve and the plunger pump to be opened andclosed through real-time data fed back by the flowmeter, the liquid level meter, the density meter and the plunger pump. The system has the beneficial effects that remote well cementing equipment monitoring, remote liquid level automatic control, remote automatic water supply, remote automatic cement supply, remote automatic pre-mixing, remote density automatic control and remote automatic displacement are realized.

Description

technical field [0001] The invention belongs to the field of petroleum equipment, and in particular relates to a remote-controlled premixing system. Background technique [0002] The traditional premixing control is: the operator of the cementing equipment manually controls the water supply of the water valve and the ash supply of the ash valve according to the density requirements of the cementing equipment. When the required density is reached, the premixing is stopped and normal operation is started. During this process, The operation of personnel is cumbersome, and the operation requirements for operators are relatively high. Moreover, the traditional cementing operator has been standing on the equipment, only one step away from the plunger pump and high-pressure manifold. When performing some deep high-pressure well cementing operations, the high pressure of tens of megapascals has been threatening the personal and life safety of operators. [0003] At present, the co...

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Problems solved by technology

[0003] At present, the coordination between the equipment of the whole well site in the cementing operation is relatively poor, and the degree of automation is low.

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