Woodford Shale

Woodford Shale ImageLocated in southeastern Oklahoma, the Woodford shale play has been drilled for about 10 years. Only the Barnett shale in Texas has been producing natural gas longer than the Woodford shale. Devon Energy drilled the first well into the Woodford shale formation in 2005, and since then numerous petroleum companies have acquired acreage and launched their own drilling programs. Current estimates are that the Woodford shale holds approximately 4 tcf of natural gas.

Of the numerous companies drilling in the Woodford shale, Houston-based Newfield Exploration and Oklahoma City-based Devon are the largest producers. Both companies have sold off much of their offshore assets in the Gulf of Mexico and elsewhere in order to focus their attention on unconventional resources such as the Woodford and other shale plays

Woodford Shale Map

Woodford Shale News

Area Drilling

Sep 10, 2007

UNCONVENTIONAL GAS-1: Reserves, production grew greatly during last decade

Sep 3, 2007 From an emerging resource 1 decade ago, and a mostly overlooked resource 2 decades ago, unconventional gas is now a core business of many large independent producers and a growing number of the major oil and gas companies.

US NATURAL GAS- Conclusion: Rockies Express faces downstream bottlenecks

Jul 2, 2007 Kinder Morgan’s Rockies Express Pipeline needs capacity downstream from its Clarington, Ohio, terminus to expand before it can fully address growing demand in the Northeast.

Area Drilling

May 28, 2007

Area Drilling

May 21, 2007

Area Drilling

Sep 8, 2003 Roc Oil Co. Ltd., Sydney, said it hopes to begin exploration on the 267,000-acre South Cabinda onshore block within 12-18 months.

Case-specific designs improve drill bit performance

Mar 17, 2003 Drilling performance can improve dramatically with the use of case-specific bit selection and optimized drilling parameters.

Three-lateral splitter allows individual zone access in Oklahoma well

May 21, 2001 Baker Oil Tools says its first-ever commercial application of a stackable splitter, Level 6, three-lateral completion in an Oklahoma gas field provided greater initial production rates than single borehole producers.

Industry Briefs

Apr 10, 2000 Overseas Private Investment Corp., a self-sustaining US federal government agency, agreed to finance $85 million via a credit facility for construction of a $170 million, 36,000 b/d refinery to be built at Napa Napa on Papua New Guinea's Port Moresby Harbor (OGJ, Jan. 17, 2000, Newsletter).

Waterfracs prove successful in some Texas basins

Mar 20, 2000 Several operators have found that waterfracs with minimal proppants effectively stimulate low-permeability gas formations in several Texas basins.

Core preservation

Mar 13, 2000 Mr. Scott Montgomery's article on oil well core preservation (OGJ, Nov. 15, 1999, p. 84) reminded me of my first oil field job: core analyst for Core Laboratories Inc. in Midland, Tex.

INDUSTRY BRIEFS

May 24, 1999 BHP Petroleum Pty. Ltd. unit BHP Petroleum (Trinidad) Ltd. made a natural gas discovery with the first exploration well on its Block 2c production-sharing contract area 40 km off northeastern Trinidad. Angostura-1, in 40 m of water, flowed 30 MMscfd of gas through a 56/64-in. choke during a cased-hole test. BHP plans a second exploration well, Kitchener-1, on neighboring Block 2ab, held by operator BHP 50% and Talisman (Trinidad) Holdings Ltd. Block 2c interest holders include operator BHP 45%,

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

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

FLUORESCENCE ANALYSIS CAN IDENTIFY MOVABLE OIL IN SELF-SOURCING RESERVOIRS

Jun 5, 1995 Gerry G. Calhoun Consulting petroleum geologist Midland, Tex. The recent surge of activity involving self-sourcing reservoirs and horizontal drilling recognizes a little tapped niche in the domestic energy mix. Such prolific pays as the Cretaceous Bakken and Austin Chalk have drawn research interest and large amounts of investment capital. Fluorescence analysis can discern movable oil-as opposed to exhausted source rock-in such reservoirs with an inexpensive test.

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