Barnett Shale

Barnett Shale Description Image

The Barnett shale in north-central Texas lies in the Fort Worth Basin. Discovered in the 1950s, the Barnett was not commercially viable until the 1980s. Some geologists believe the formation could hold 30 trillion cubic feet of natural gas. A significant part of the drilling has occurred in the Fort Worth metro area, and Chesapeake Energy actually secured rights to drill beneath the Dallas-Fort Worth International Airport.

Drilling in the Barnett shale intensified in the past decade as modern horizontal drilling and hydraulic fracturing techniques were perfected for drilling in shale. Devon Energy, Chesapeake Energy, XTO Energy, and EOG Resources are among the larger players in the Barnett shale. Two years ago, 70% of all US gas shale production came from the Barnett, but that percentage of the total has been declining as production has risen in other plays.

Barnett Shale Map

Barnett Shale News

CALIFORNIA NATURAL GAS LINE ACTION SIMMERING

Feb 5, 1990 The competition to serve California's growing gas demand with an interstate pipeline has developed a new wrinkle. Los Angeles Department of Water & Power (DWP) has turned to Coastal Corp.'s Wyoming-California Pipeline Co. for natural gas pipeline capacity after negotiations collapsed with the competing Tenneco Inc./Williams Cos. Kern River Transmission Co. project to bring gas from Wyoming to southern California. The scramble among competing interstate pipeline projects to

NONPRODUCING HAYS COUNTY, TEX., SITE OF REMOTE ELLENBURGER WILDCAT

Mar 18, 1991 G. Alan Petzet Exploration Editor A Houston independent has staked a rare, remote wildcat in nonproducing Hays County, central Texas, in the frontal portion of the buried Ouachita Thrust Belt. Portsmouth Resources Inc. plans to drill 1 Bittick et al. to 9,500 ft or Cambro-Ordovician Ellenburger 2 miles south-southwest of Dripping Springs and 27 miles west of Austin. Location is in Stiles J. Fowler survey #31, A-174.

OGJ NEWSLETTER

Jul 1, 1991 Have U.S. gas prices finally touched bottom? While international trade in natural gas continues to grow (see story, p. 21), the U.S. gas industry continues to languish. Low gas prices and flat-demand are squeezing producers and pipelines alike. Nymex gas futures hit a record low of $1.118/Mcf at closing June 24, down more than 20 on the month and more than 40 from a year ago. Nymex gas rebounded slightly the next 2 days, settling at $1.142 June 26. Natural gas is often referred to as "the

AEROMAG SURVEY FINDS FEATURES ALONG CENTRAL TEXAS OVERTHRUST

May 18, 1992 E. Gerald Rolf Consultant San Antonio Kenneth O. Seewald Seewald Energy Co. San Antonio The Ouachita thrust belt of central Texas appears to have great potential based on a recent aeromagnetic survey. The Strawn basin of central Texas has had periodic, selective seismic surveys and limited drilling (Fig. 1). About 60 wells have been drilled to Ordovician Ellenburger (one well per 96 sq miles). Only 26 of these penetrated more than 200 ft of Ellenburger, and of that number only eight drilled

PETROLEUM INDUSTRY ASSISTS HURRICANE RELIEF

Sep 14, 1992 The petroleum industry is aiding victims of last month's Hurricane Andrew with cash, clothing, food, water, and other supplies. Cash contributions announced as of last week totaled more than $2.7 mil lion for distribution in South Florida and South Louisiana. Petroleum industry employees were collecting relief items such as bottled water and diapers for distribution in those areas.

HORIZONTAL DRILLING FOR ONSHORE GAS FACES MANY CHALLENGES

Oct 5, 1992 Iraj A. Salehi Gas Research Institute Chicago Even though cost-effective in oil fields and some prolific offshore gas fields, horizontal well technology has not yet been successfully transferred to onshore gas fields. The major technical challenges are accurate reservoir characterization, proper well design and placement, and stimulation. The first two of these challenges can be met with the state-of-the-art technologies but the third requires emerging knowledge, tools, and techniques.

WATCHING THE WORLD EUROPE'S BIG REFINERS FACE SPENDING SPREE

Jul 11, 1994 With David Knott from London Refiners in a number of European countries can't meet prevailing patterns of demand. There is excess capacity for some products, while others are in short supply. A report published by FT Business Information Ltd., London, says shifting demand patterns will worsen the imbalance for many refiners. The remedy is a familiar one: "Considerable investment is necessary. The general shift in European demand is toward lighter petroleum products. This and tighter

PROMISE SEEN IN PETREL SUB-BASIN OFF NORTHWESTERN AUSTRALIA

Jan 30, 1995 Tun U. Maung , Virginia Passmore Bureau of Resource Sciences Parkes, ACT, Australia The Australian government during the past 11 years has been regularly releasing vacant areas on the Australian continental shelf for exploration. Although Australia's offshore basins cover an area of 12 million sq km, only about 1,100 exploration and development wells have been drilled, and most of the basins are underexplored by world standards. One of these areas is the Petrel sub-basin of the Bonaparte

TEAMWORK AND GEOSTEERING PAY OFF IN HORIZONTAL PROJECTS

Feb 27, 1995 Tom Schroeder , Dan Mathis Baker Hughes Inteq Houston Ron Howard , Guy Williams , Jimmy Sun Pogo Producing Co. Houston The use of measurement while drilling data in real time and teamwork with open communication and quick decisions at the rig site ensured the success of a I five-well horizontal project in the Gulf of Mexico. (Table 1 - Shallow Production From Similar Horizontal Wells In Gulf Of Mexico)

Mitchell to hike gas production in North Texas

Oct 2, 1995 Mitchell Energy & Development Corp., The Woodlands, Tex., plans to boost its North Texas gas production by 25-30 MMcfd during the next 12 months from 100 MMcfd earlier this year. Its program involves placing spare productive capacity on line, stepping up the pace of well completions, increasing deliverability in gathering systems, and serving more gas markets in the area. The program stems from Mitchell's buyout last July of a premium priced gas sales contract with Natural Gas Pipeline Co.

EXPLORATION New basins invigorate U.S. gas shales play

Jan 22, 1996 Scott R. Reeves Vello A. Kuuskraa Advanced Resources International Inc. Arlington, Va. David G. Hill Gas Research Institute Chicago While actually the first and oldest of unconventional gas plays, gas shales have lagged the other main unconventional gas resources-tight gas and coabed methane-in production and proved reserves. Recently, however, with active drilling of the Antrim shales in Michigan and promising results from the Barnett shales of North Texas, this gas play is growing in

API May U.S. well completions

Jul 7, 1997 API May U.S. well completions [19361 bytes] Oil Industries & Engineering Co. of Iran with 10% and PetroFina SA of Belgium with 5% have joined a group that plans to explore and develop the Lenkoran and Talysh structures in the Caspian Sea (see map, OGJ, Jan. 20, 1997, p. 31). The Elf Aquitaine led group also includes State Oil Co. of the Azerbaijan Republic and units of Total and Deminex. Esso Norge AS has a Paleocene discovery at its 100% owned Forseti prospect 4 miles north of Balder field in

Potential seen in areas off Northwest, Southeast Australia

Nov 24, 1997 Effective with its 1997 release of offshore acreage, Australia launched a new system of offering two groups of areas with different closing dates. In the group for which bids close in March 1998: The Browse basin, which has supergiant gas reserves and now the major Cornea oil discovery, has the potential for more major discoveries in moderate to deep water between the petroleum kitchens and basin margin fields; Elsewhere, shallow water, underexplored parts of the oil productive Bonaparte basin

Fort Worth basin operator to add Barnett shale infill wells, reserves

Jan 4, 1999 An independent producer plans to develop more gas in Mississippian-Devonian Barnett shale in the Fort Worth basin. The Texas Railroad Commission approved field rule amendments that will allow increased well density in the formation. Mitchell Energy & Development Corp. said the rules permit it to drill wells in Newark East field on as little as 40 acre spacing. Mitchell expects that as many as 100 wells with a combined 80 bcf of estimated net gas reserves will be added to the proved undeveloped

Use resistivity as indicator of source rock maturity

May 10, 1999 The resistivity of various shale source rocks has been observed to increase with depth (Bakken, Barnett, Mowry, Niobrara, Woodford, etc.). This relationship can be explained by the retention of generated hydrocarbons in micropores. The generalized process requires: 1) a volume increase during conversion of kerogen to fluid hydrocarbons; 2) a rigid framework that provides a fixed volume of available pore space, and 3) micropores with micropermeability that retain hydrocarbon globules through
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