Haynesville Shale

The Haynesville Shale is a rock formation mainly composed of consolidated clay-sized particles deposited and buried in northwest Louisiana and East Texas more than 170 million years ago during the Upper Jurassic age. It is characterized by ultra-low permeability but has a high porosity compared to other shales.

The Haynesville Shale came into prominence in 2008 as a potentially major shale gas resource. Producing natural gas from the Haynesville Shale involves drilling wells from 10,000 feet and to 13,000 feet deep. The formation is deeper in areas nearer the Gulf of Mexico. The Haynesville Shale has recently been estimated to be the largest natural gas field in the contiguous 48 states with an estimated 250 trillion cubic feet of recoverable gas. Production has boomed since late March 2008, creating a number of new millionaires in the Shreveport, Louisiana region.

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Tuesday, May 3, 2011

Haynesville Shale A Key Producer in Natural Gas


The Haynesville Shale is in northwestern Louisiana, western Texas and southern Arkansas. It has more than 1,000 wells already producing record levels of natural gas, and more than 900 more permitted and awaiting drilling or currently being drilled. Industry leaders have said there will be about 10,000 wells drilled to fully develop the area.
Haynesville has had a booming effect on Louisiana's economy. "The amount of money pumped into the economy from this thing is pretty extraordinary," said Dr. Loren Scott, professor emeritus at Louisiana State University.
The Haynesville Shale region has higher drilling costs because its natural gas fields are dry. They are deeper than most and don't offer simultaneous oil production. To get to the gas, companies need to use horizontal drilling. A well is drilled to the shale layer and then turned to enter horizontally into the formation. Then drillers use hydraulic fracturing to set off small explosions and fracture the surrounding rock before pumping a mixture of water, sand and chemicals into the well to release the gas.
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