Unlock instant, AI-driven research and patent intelligence for your innovation.

Braking devices and methods for use in drilling operations

A brake device and brake technology, which is used in drilling, can reduce drilling tools from accidentally exiting the field from drilling holes, and can solve problems such as difficulty in removing inner pipe components, equipment and personnel hazards, etc.

Inactive Publication Date: 2014-12-24
LONGYEAR TM
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although this process reduces the time associated with core sample withdrawal, difficulties can be encountered when removing the inner tube assembly
For example, occasionally the inner barrel assembly may fall out of the drill string, posing a potential hazard to equipment and personnel at the surface due to the core barrel assembly being present in the borehole at potentially high velocity

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
  • Braking devices and methods for use in drilling operations
  • Braking devices and methods for use in drilling operations
  • Braking devices and methods for use in drilling operations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The devices, assemblies, systems, and methods provided herein include braking devices for controlling movement of a drilling assembly, such as a core barrel assembly, at a desired location during horizontal and / or up-hole drilling and method. Brakes can be incorporated into the drilling system as desired. In at least one example, the braking device is part of an in-hole assembly, such as a wireline system in general, and may in particular be part of a core barrel assembly. In one example, the detent may be part of the head assembly that is moveable into position relative to the outer sleeve. In other examples, the braking device may be coupled to or be part of the core barrel.

[0017] Specific details are given below for a thorough understanding. However, it will be understood by those skilled in the art that these devices and methods of using these devices may be practiced and used without these specific details. In fact, the illustrated devices and associated met...

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

A braking device for drilling operations in a borehole includes a brake retainer having a plurality of brake connector openings defined therein, a body member having a tapered surface having a first diameter and a second diameter, the second diameter being larger than the first diameter, at least one brake element positioned at least partially between the brake retainer and the body member and in communication with the tapered surface and at least one of the brake connector openings, and a bias member configured to exert a biasing force on the body member to move the body member toward the brake retainer to move the brake element from contact with the first diameter of the tapered surface toward contact with the second diameter.

Description

technical field [0001] The present application generally relates to drilling methods and devices for use in drilling. In particular, the present application relates to methods and apparatus for reducing unintentional withdrawal of a drilling tool from a borehole during drilling operations. Background technique [0002] Many drilling processes are currently known and utilized. A drilling process, known as survey drilling, often involves removing samples of desired material from an earth formation. In the traditional process for survey drilling, an open drill bit is attached to the bottom or front edge of the core barrel used to remove the desired sample. The core barrel includes an outer portion that is attached to the drill string and an inner portion that collects the sample. A drill string is a series of connected drill rods that are assembled section by section as the core barrel is moved deeper into the formation. The core barrel is screwed and / or pushed into the des...

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 Patents(China)
IPC IPC(8): E21B23/01
CPCE21B25/02E21B23/01
Inventor 克里斯托弗·L·德伦斯
Owner LONGYEAR TM