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Motor-driven compressive rubber-barrel underground blowout preventer

A motor-driven, rubber-compressed technology, applied in wellbore/well parts, earthwork drilling, sealing/package, etc., can solve problems such as information interaction and engineering hidden dangers, and achieve blowout prevention, convenient operation, fast and reliable sealing and the effect of the unpacking operation

Pending Publication Date: 2019-01-25
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the entire process of the blowout preventer before and after the blowout prevention operation is automatically controlled, and there is no information interaction with the ground. If drilling continues without knowing it, it will bring huge hidden dangers to the project

Method used

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  • Motor-driven compressive rubber-barrel underground blowout preventer
  • Motor-driven compressive rubber-barrel underground blowout preventer
  • Motor-driven compressive rubber-barrel underground blowout preventer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Example 1: if figure 1As shown, a motor-driven compressed rubber tube type downhole blowout preventer, which includes an upper joint (1), a pressure sensor (2), a console frame (3), a fixed cylinder (4), a battery (5), and a rectangular spring (6), outer sleeve (7), motor (8), nut (9), screw mechanism (10), compression cylinder (11), center cylinder (12), rubber cylinder upper joint (13), rubber cylinder (14), the lower joint (15) and the lower joint (16) of the rubber cylinder; the upper joint (1) and the lower joint (16) are arranged at both ends of the central cylinder (12), and the central cylinder (12) and the upper and lower joints are threaded Fixed, the upper joint (1) is provided with a mud pressure monitoring flow channel (1-1), and the outer sleeve (7) and the upper joint (1) adopt the most convenient thread connection method. The motor-driven compression rubber tube type downhole annular blowout preventer adopts the screw mechanism (10) for power transmissi...

example 2

[0029] Example 2: Based on the device in Example 1, a motor-driven compressed rubber cartridge type downhole blowout preventer blowout prevention method is as follows.

[0030] 1. When an overflow occurs, the high-pressure fluid in the formation enters the drill string through the drill bit and flows upward, so that the blowout prevention check valve at the drill bit is closed to block the inner channel of the drill string. At the same time, the high-pressure fluid in the annulus of the wellbore passes through The pressure monitoring channel of the joint on the downhole blowout preventer, and the overflow phenomenon is monitored by the pressure sensor, and blowout prevention measures must be taken at this time.

[0031] 2. After the overflow signal is received by the signal receiver (c), it is converted by the acoustic-electric transducer (d), then passed to the relay station (b) by the signal generator (f), and then amplified by it and then transmitted to the ground The contr...

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PUM

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Abstract

The invention discloses a motor-driven compressive rubber-barrel underground blowout preventer and belongs to the technical field of underground blowout prevention. The motor-driven compressive rubber-barrel underground blowout preventer mainly comprises a control module, a power module, a communication module and an execution module. A rubber barrel of the execution module herein can be squeezedby a compression barrel, pushed by rotation of a motor, to expand, thereby sealing a shaft annulus; when unsealing is required, the motor rotates reversely to drive the compression barrel to move reversely, and the rubber barrel is released to allow unsealing. The motor-driven compressive rubber-barrel underground blowout preventer is reusable, can respond fast, is suitable for various well types,has good safety and reliability and long life, can be set to establish a new circulation passage between inner and outer annular spaces, thereby facilitating subsequent well killing.

Description

technical field [0001] The invention designs a blowout prevention technology when well kick and blowout occur in the drilling process of oil and gas fields. Background technique [0002] In various fields of oil and gas development and petroleum exploration, drilling operations have always played a very important role, such as exploring the location of oil and gas reservoirs, detecting oil and gas area and reserves, obtaining relevant data on geological data and formation development, and finally extracting crude oil from The underground transportation to the surface, etc., all these links need to be completed by drilling. Drilling is a key link in the exploration and development of oil and natural gas resources, and it is also an important means. [0003] With the development of my country's economy and society, the demand for oil and gas resources in all walks of life is increasing, and the current supply of oil and gas can no longer meet the requirements of modern product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/128
CPCE21B33/128
Inventor 黎伟邹星蒋少玖邓琅舒晨旭夏杨陈曦李配胡亚军
Owner SOUTHWEST PETROLEUM UNIV
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