Method and apparatus for increasing well productivity
Abstract
This patent application discloses method and apparatus to cut an extended slot connecting a well to a substantial cross section of a desired producing formation whereby material can flow freely between the formation and the wellbore and at least partially overcome the flow limitations of low permeability formations without the environmental issues associated with hydraulic fracturing. It is further disclosed that the connection between said slot and the formation may be further enhanced by explosive or combustive processes that rapidly generate gas pressure within the large surface area of the slot, thereby changing its characteristics and forcing open additional fractures into the cross section of formation exposed to the slot. The method may significantly increase the recoverable percentage or natural gas from low permeability deposits such as shale and coal.
- Inventors:
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1532008
- Patent Number(s):
- 9732561
- Application Number:
- 15/198,995
- Assignee:
- Carter, Jr., Ernest E., Sugar Land, TX (United States)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- AC26-07NT42677
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2016-06-30
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Carter, Jr., Ernest E. Method and apparatus for increasing well productivity. United States: N. p., 2017.
Web.
Carter, Jr., Ernest E. Method and apparatus for increasing well productivity. United States.
Carter, Jr., Ernest E. Tue .
"Method and apparatus for increasing well productivity". United States. https://www.osti.gov/servlets/purl/1532008.
@article{osti_1532008,
title = {Method and apparatus for increasing well productivity},
author = {Carter, Jr., Ernest E.},
abstractNote = {This patent application discloses method and apparatus to cut an extended slot connecting a well to a substantial cross section of a desired producing formation whereby material can flow freely between the formation and the wellbore and at least partially overcome the flow limitations of low permeability formations without the environmental issues associated with hydraulic fracturing. It is further disclosed that the connection between said slot and the formation may be further enhanced by explosive or combustive processes that rapidly generate gas pressure within the large surface area of the slot, thereby changing its characteristics and forcing open additional fractures into the cross section of formation exposed to the slot. The method may significantly increase the recoverable percentage or natural gas from low permeability deposits such as shale and coal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {8}
}
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