Small diameter coring type vertical drilling tool thrust actuator

An actuator and vertical drilling technology, which is applied to drilling equipment, directional drilling, and undisturbed core extraction devices, etc., can solve the problem that the center does not have enough space to install coring devices, restricts the development of deep geological drilling technology, and cannot realize vertical drilling while taking It saves space, meets the needs of vertical drilling operations, and has a simple structure.

Pending Publication Date: 2019-09-10
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the current automatic vertical drilling tools cannot drill in small-diameter wells due to the large space occupied by the actuator, and there is not enough space in the center to install a coring device, so it is impossible to achieve core drilling while vertically drilling. purpose, which greatly limits the development of deep geological drilling technology
At present, the actuators of vertical drilling tools are pushed against the ribs and connected with the main body through pin shafts. The connection strength is low, which may easily lead to downhole accidents.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Small diameter coring type vertical drilling tool thrust actuator
  • Small diameter coring type vertical drilling tool thrust actuator
  • Small diameter coring type vertical drilling tool thrust actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1~2 As shown, this embodiment provides a small-diameter coring type vertical drilling tool thrust actuator, including a thrust actuator unit, the thrust actuator unit includes an actuator body 1, a push rib 2 and a lower end cover 3, the actuator body 1 The center is coaxially provided with a first through hole 4, the first through hole 4 is used to place the coring cylinder, and the outer circumference of the main body of the actuator 1 is evenly provided with three installation grooves, each installation groove is installed with a push rib 2, the installation One end of the groove is provided with an arc-shaped groove surface 5, and one end of the rib 2 is pushed against an arc-shaped cylinder 6, and the arc-shaped cylinder 6 is fitted in the arc-shaped groove surface 5, and the rib 2 can be pushed against the The axis of the arc-shaped cylindrical surface 6 rotates, and a groove 7 is provided on the side of the pushing rib 2 close to the first through...

Embodiment 2

[0038] Such as image 3 As shown, this embodiment provides a small-diameter coring type vertical drilling tool thrust actuator, including two thrust actuators in Embodiment 1, and the two thrust actuators are coaxially connected up and down and are respectively the first thrust actuator and the first thrust actuator. The second thrust implementing unit, the pushing rib 2 of the first thrust implementing unit and the pushing rib 2 of the second thrust implementing unit are collinear in the vertical direction.

[0039] In this embodiment, the diversion passage 17 is arranged on the lower end cover 3 of the first thrust execution unit, and the upper and lower ends of the diversion passage 17 are respectively connected with the drilling fluid chamber in the first thrust execution unit and the second thrust execution unit. The upper flow hole 8 in the first thrust execution unit is connected, and the drilling fluid passes through the upper flow hole 8, the drilling fluid chamber an...

Embodiment 3

[0041] Such as Figure 4 As shown, this embodiment provides a small-diameter coring type vertical drilling tool thrust actuator, including two thrust actuators in Embodiment 1, and the two thrust actuators are connected up and down coaxially and are respectively the first thrust actuator and the first thrust actuator. The second thrust implementing unit, the pushing rib 2 of the first thrust implementing unit and the pushing rib 2 of the second thrust implementing unit are not collinear in the vertical direction.

[0042] In this embodiment, the diversion channel 17 is arranged on the actuator main body 1 and the lower end cover 3 in the first thrust actuator unit, the diversion channel 17 runs through the actuator body 1 and the lower end cover 3 up and down, and the lower end of the diversion channel 17 It communicates with the upflow hole 8 in the second thrust execution unit, and the drilling fluid passes through the guide channel 17 in the first thrust execution unit, inj...

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

No PUM Login to view more

Abstract

The invention discloses a small diameter coring type vertical drilling tool thrust actuator. The small diameter coring type vertical drilling tool thrust actuator comprises at least one thrust executing unit, wherein each thrust executing unit comprises an actuator body, pushing wing ribs and a lower end cover, a first through hole is coaxially formed in the centre of the actuator body, three mounting grooves are evenly formed in the outer circumference of the actuator body, and one pushing wing rib is installed in each of the mounting grooves; circular arc groove surfaces are arranged at oneends of the mounting grooves, circular arc cylinder surfaces are arranged at one ends of the pushing wing ribs, the circular arc cylinder surfaces are installed in the circular arc groove surfaces ina matched mode, grooves are formed in one surfaces of the pushing wing ribs, and the grooves are used as drilling fluid cavities; upper flow holes are formed in the upper part of the actuator body, flow discharge holes are formed in the lower end cover, the multiple thrust executing units are coaxially and successively connected upper and lower, and flow guide channels are formed in the thrust executing units. Coring operation can be carried out when drilling is carried out vertically.

Description

technical field [0001] The invention relates to the technical field of geological drilling equipment, in particular to a small-diameter coring type vertical drilling tool thrust actuator. Background technique [0002] At present, drilling engineering is an important means of resource and environmental exploration, and its research field is extending from the traditional surface to the polar regions, oceans, deep earth, and ocean bottom. Deep drilling will be an important means of deep earth exploration and the only way to obtain real objects deep in the earth. However, in the process of deep drilling, how to keep the wellbore vertical is a big problem. The problem of well deviation will directly restrict the drilling speed and drilling speed. Quality, and even the success or failure of the entire drilling project. [0003] The emergence of the automatic vertical drilling system has brought a major technological breakthrough for deflection prevention and correction. It is an...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/10E21B7/04E21B25/00F16J15/18F16J15/16
CPCE21B7/04E21B17/1014E21B25/00F16J15/16F16J15/18
Inventor 张凯柴麟刘宝林张龙张耀澎李然然
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap