Information Memorandum for Thar blocks 2010.pdf - Sindh Board Of ...

(USGS) examined and described drill cuttings from other nearby
SAZDA wells in March 1989.
The hole No.TH-5 was geophysical logged along with other holes
and it was estimated the total coal present in well was 19 m. Further
confirmation of the coal presence in Thar Desert exploration program
was carried out by drilling 4 boreholes.
In October 1992, the Geological Survey of Pakistan (GSP), and
United States Geological Survey (USGS) began a 21 bore holes exploration
program to define the magnitude and geographic limits of the Thar Coal
field.
In 1993, an additional 10 bore holes were drilled under a contract with the
John .T. Boyd Company under the auspices of USAID, additional 03 drill
holes were also drilled by GSP under the auspices of USAID.
The studies proved that Thar coalfield is spread over an area of more
than 9100 square kilometers with dimensions of 140 km (north-south) 65
km (east-west) having 175.506 billion tones of Lignite (coal), categorized
"A" to "B".
The GSP carried out the drilling program for development of the
blocks for further proven coal reserves from 1994-2000 and Blocks I, II,
III and IV were developed.
In 2005-2006, Sindh Coal Authority developed Block V and VI through
foreign firm viz. Northeast Coalfield Geological Survey Bureau, China.
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