A device for preventing back-spraying of mud when tripping out with satellite positioning control
A technology of satellite positioning and control device, which is used in earth-moving drilling, wellbore/well components, sealing/packing, etc., can solve the problems of low safety, waste of materials, and large environmental pollution of blowout prevention technology, and achieve safety High, simple structure
Active Publication Date: 2018-11-20
中石化石油工程技术服务有限公司 +2
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The object of the present invention is to provide a satellite positioning controlled tripping out anti-return spraying mud device to solve the problems of large environmental pollution, low safety and waste of materials in the prior art blowout prevention technology
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] Such as figure 1 As shown, the satellite positioning controlled tripping anti-return mud injection device includes a control device 1 , an execution device 2 and a blowout prevention device 3 . In the present invention, the control device 1 controls the execution device 2 so that the satellite positioning-controlled pull-out anti-return spray mud device can stay at a set depth in the drill pipe 7, and the blowout prevention device 3 prevents the mud from flowing upward. Since the device is installed in the drill pipe, it does not need to unload the drill pipe and then put it into the blowout preventer like the traditional blowout preventer, which avoids the phenomenon that the mud is ejected from the drill pipe when the drill pipe is disassembled. The satellite positioning-controlled pull-out anti-return spray mud device of the present invention has the advantages of simple structure, high safety, and can greatly reduce environmental pollution and waste of mud materials...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a device for preventing slurry backward jetting during pulling-out of a hole under satellite positioning control. The device comprises a control device, an executing device and an anti-jetting device, wherein the anti-jetting device comprises a spindle, a pressure balancing block and at least one Y-shaped sealing ring; the pressure balancing block is fixedly connected with the lower end of the spindle; the Y-shaped sealing ring is fixedly sleeved on the spindle; the executing device comprises an upper electromagnet ring, a lower electromagnet ring and at least two pawls hinged with the spindle; the upper electromagnet ring is fixedly sleeved on the spindle above the pawls; the lower electromagnet ring is fixedly sleeved on the spindle under the pawls. According to the invention, the control device is used for controlling the executing device to remain the device for preventing slurry backward jetting during pulling-out of the hole under the satellite positioning control at a preset depth in a drill rod; the anti-jetting device is used for preventing the slurry from upward flowing; the device for preventing slurry backward jetting during pulling-out of the hole under the satellite positioning control, provided by the invention, has the advantages of simple structure, high safety and capability of greatly reducing environmental pollution and slurry material waste.
Description
technical field [0001] The invention relates to the technical field of blowout prevention devices, in particular to a satellite positioning controlled tripping out anti-return spray mud device. Background technique [0002] Back-spraying of mud often occurs during oil drilling and tripping. Back-spraying of mud not only wastes resources and damages the health of workers, but also seriously pollutes the environment because the mud contains chemicals. There are two methods to solve this problem in the prior art: one is to inject heavy mud into the drill pipe before drilling to balance the pressure in the well, but this method will increase the pressure of the wellbore, and the mud will destroy the oil and gas layer after being pressed into the formation , affect the oil and gas production of the well, and also cause waste of materials. The second is to fill the annular space with less mud when pulling out the drill. This method is likely to cause instability of the well wall ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/06
CPCE21B33/06
Inventor 薄玉冰薄超薄涛蔡巍蒲文学虞德平崔永辉孙伟良薄和秋
Owner 中石化石油工程技术服务有限公司