System for generating a hole using projectiles
US10329842B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2016 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Nov 10, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/263
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore or other type of hole in a geologic formation or other material, such as concrete or other manmade structures, may be formed by accelerating perforating charges containing detonable material through a tubular string. Movement of a fluid, such as drilling mud, may be used to transport perforating charges to a bottom hole assembly. In the bottom hole assembly, a propellant material may be used to accelerate the perforating charges, such as by using a ram acceleration mechanism. The perforating charges may be shaped to at least partially penetrate a surface of the hole. Detonation of the perforating charge may displace, stress, or fracture the geologic material. Movement of the fluid may remove displaced geologic material and detonated material from the perforating charge from the hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.