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Austin Chalk Formation
- Austin Chalk Map - South Texas Oil & Natural Gas
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What is the Austin Chalk
formation? The
Austin Chalk formation stretches across numerous fields in Texas, Louisiana and a small portion of Mississippi. The
Austin Chalk is currently producing Natural Gas and Oil. Companies drilling the Austin Chalk are having huge success
and are also finding other oil & natural gas rich zones such as the Eagle Ford Shale. The Austin Chalk formation reaches 500 km in length and 50 km in width. The first wells drilled in
the Austin chalk were drilled in the 1920’s. Initially, vertical drilling was the only technique used to reach
the Austin Chalk reservoirs, but as horizontal drilling came about, they changed the primary technique as horizontal drilling
significantly enhanced the productivity of the wells by intersecting multiple fracture sets. Austin Chalk ranges in
thickness from 15 to 180 meters. It lies just above the Eagle Ford shale, yet below the Dessau formation. The average targeted depth is roughly 1700 meters.
The Austin Chalk formation can be found in the following counties
in Texas: Fayette County, Washington County,
Burleson County, Brazos County, Grimes County, Montgomery County, Gonzales, Wilson, Karnes, Grayson County, Limestone County,
Bell County, Silliamson County, Travis County, Medina County, Uvalde County, Bexar County, fayette County, Lee County Texas,
Colorado County, Austin County, Milam County, Robertson County, Jasper County and Newton County
The Austin Chalk formation can also be found in the Vernon and
Rapides Parishes of Louisiana. The Austin Chalk formation
in Texas continues to yield great results. This will continue into 2013/2014.
View More Texas Oil & Gas Shale Plays - Eagle Ford Shale - Barnett Shale - Permian Basin - Granite Wash - Haynesville Shale
| Austin Chalk Formation Map |
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| Austin Chalk Trend |
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Companies Drilling in the Austin Chalk
Formation - Austin Chalk Stocks
EV
Energy Partners (EVEP) continues to be active in the Austin Chalk. Now I’ll move to the Austin
Chalk where EVEP holds a 13% to 15% working interest. During the
first quarter of 2012, we finished drilling one well and drilled a second well. Three new wells began producing during the
quarter. We plan to drill nine wells in 2012. The multi-stage hydraulic fracturing process is working quite well in the Chalk.
Our last two wells are producing above expectations. One had initial
production of 550 barrels of oil per day and the other had 6 million a day of gas with 130 barrels a day of oil. About half
of the 2012 program in the Chalk will utilize the multi-stage process. And we are evaluating an opportunity to deploy this
technology on more of our Austin Chalk acreage. Swift Energy Co. (SFY) - Swift Energy SFY
Austin Chalk Formation - In the Company's Central Louisiana/East Texas core area, one operated well and one non-operated well
were drilled, both targeting the Austin Chalk formation in the Burr Ferry field in Vernon Parish, LA. The GASRS 16-1 well, a non-operated well, was completed in the Austin Chalk and had an initial production rate
of 207 bbls/d of oil and 1.3 MMcfg/d with flowing casing pressure of 1,250 psi on a 25/64" choke. This well, drilled
near the southern extent of the Company's joint operating area, encountered fewer natural fractures than the wells drilled
farther north have encountered. This well is important in understanding the geology in the area, which is essential to future
development plans. The Swift Energy operated GASRS 20-1 finished drilling operations
during the third quarter and was completed in the Austin Chalk. A mechanical problem occurred during the initial cleanup of
the well that required a workover rig to resolve. A workover rig is currently on this well and work is underway to remedy
the issue. This well bore remained in zone for the extent of the 4,254 foot lateral and encountered high natural fracture
density and strong tubing pressure.
Lucas Energy (LEI) - Lucas Energy, Inc. (NYSE Amex:LEI) an independent
oil and gas company (the "Company" or "Lucas"), today announced that the Company has completed the Hagen
Ranch Unit No.1HST well in Gonzales County, Texas as a flowing horizontal oil well in the Austin Chalk formation. The official
24 hour test that will be reported to the regulatory agency is 351 BOPD (barrels of oil per day), and 86 BWPD (barrels of
water per day) with 419 psig (pounds per square inch), pumping. Lucas has an approximately 64% working interest in this well. Although the well is pumping (artificial lift), it continues to
flow up the casing side as well as the tubing. The Company drilled a new lateral in the Austin Chalk formation from an existing
well bore. There are now three wells completed as new laterals from existing well bores; however, the Hagen Ranch Unit No.1HST
well is the most promising of the three, showing signs of virgin pressure from previously untapped reserves, as did the recently
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