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Title: Well drilling apparatus and method

Abstract

Well drilling rates may be increased by impelling projectiles to fracture rock formations and drilling with rock drill bits through the projectile fractured rock.

Inventors:
 [1];  [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
862861
Patent Number(s):
4030557
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
AT(29-1)-789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
drilling; apparatus; method; rates; increased; impelling; projectiles; fracture; rock; formations; drill; bits; projectile; fractured; drill bit; drilling apparatus; rock formations; fractured rock; fracture rock; rock drill; rock formation; drilling rates; /175/

Citation Formats

Alvis, Robert L, and Newsom, Melvin M. Well drilling apparatus and method. United States: N. p., 1977. Web.
Alvis, Robert L, & Newsom, Melvin M. Well drilling apparatus and method. United States.
Alvis, Robert L, and Newsom, Melvin M. Sat . "Well drilling apparatus and method". United States. https://www.osti.gov/servlets/purl/862861.
@article{osti_862861,
title = {Well drilling apparatus and method},
author = {Alvis, Robert L and Newsom, Melvin M},
abstractNote = {Well drilling rates may be increased by impelling projectiles to fracture rock formations and drilling with rock drill bits through the projectile fractured rock.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

Patent:

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