Deep sea drilling remote wireless control well cementation special equipment

Abstract

The invention relates to remote wireless control cementing special equipment for ocean deep water drilling. The present invention comprises a tubular cementing equipment main body, in which a rubber plug barrel is provided, the rubber plug barrel includes a cylinder body with a closed upper end, and an inner sliding sleeve is arranged in the cylinder body in sealing contact with the inner wall of the cylinder body, and the cylinder body is in contact with the inner wall of the cylinder body. An annular space for liquid circulation is formed between the main bodies of the cementing equipment. The upper and lower rubber plugs are installed in the inner sliding sleeve, and the outer wall of the lower port of the inner sliding sleeve is located on the inner wall of the cylinder. A cavity for accommodating the setting ball is provided. The walls of the cylinder body and the inner sliding sleeve are provided with corresponding liquid inlets, and the cylinder body is provided with an air inlet channel communicating with the inside of the cylinder body. The airflow in the air intake channel pushes the inner sliding sleeve along the axial direction of the cylinder body. Slide upward to make the corresponding liquid inlet connected, and realize the automatic release of the setting ball and rubber plug. The invention cooperates with the wireless remote control terminal to control the pressure of the air intake in the air intake channel to realize the automatic release of the setting ball, the upper rubber plug and the lower rubber plug, greatly reducing the labor intensity and greatly improving the safety performance.

Description

technical field [0001] The invention relates to the field of oil and gas development and drilling, in particular to a remote wireless control cementing special equipment for ocean deep water drilling. Background technique [0002] During the drilling and completion stage of oil and gas development, cementing equipment is often used to inject cement between the newly drilled wellbore and the annular space, so as to strengthen the well wall, ensure continuous drilling, and isolate oil, gas and water layers , to ensure normal oil and gas production during the mining process. With the gradual reduction of onshore oil and gas resources, the development of oil and gas fields has begun to develop from land to sea. Offshore oil and gas development has the characteristics of high risk and high investment, and various countries and international organizations have higher and higher requirements for HSE. Therefore, conventional cementing equipment cannot fully meet the current cementi...

AI Technical Summary

Problems solved by technology

Therefore, conventional cementing equipment can no longer fully meet the current cementing needs

At present, most of the existing special cementing equipment is manual operation of balls and rubber plugs, which is inconvenient and risky to operate, while the special cementing equipment with cock structure needs an external stepping motor and has a large turning space

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