More Unconventional News

INDUSTRY BRIEFS

Mar 13, 1995 U.S. COAST GUARD issued a final rule covering double hull oil tankers under the Oil Pollution Act of 1990 (OPA). The rule sets minimum requirements for space between the two hulls for all vessels trading in U.S. waters. OPA also establishes a phaseout schedule that began Jan. 1 for existing single hull vessels. By 2015, all oil tankers trading in U.S. waters must be double hulled.

U.S. STILL HAS OIL, GAS ALLURE

Mar 13, 1995 Much oil and gas remains to be discovered and produced in the U.S. The U.S.? Isn't that the world's most mature producing region, considered by conventional wisdom to be all but drilled up? Yes, the U.S. According to a new study by the U.S. Geological Survey, the mature, drilled-up U.S. has technically recoverable volumes of 113 billion bbl of oil and 1.1 quadrillion cu ft of natural gas (OGJ, Mar. 6, p. 84). In these terms, the country has six times the oil and eight times the gas

SNYGAS PLANT EYES ANHYDROUS AMMONIA INCREASE

Mar 13, 1995 Dakota Gasification Co. (DGC) is moving ahead with engineering for a big boost in anhydrous ammonia production at its coal gasification plant near Beulah, N.D. DC,C's Great Plains Synfuels Plant currently produces 160 MMcfd of gas and 25,500 tons/year of anhydrous ammonia from lignite. With today's low prices for gas and high prices for anhydrous ammonia, DGC is poised to jump production of the fertilizer more than tenfold to about 300,000 tons/year, reducing gas production about 15%.

OPTIMIZED FRAC PAD AND GEL IMPROVE WELL PRODUCTIVITY

Mar 20, 1995 To Help optimize pad size and gel loading for hydraulic fracturing, R. Lacy Inc. used a net pressure calculation based on observations made during minifracs run before each fracture stage. Optimized pad volume and gel loading yielded greater fracture length and improved productivity of these Cotton Valley gas wells in East Texas. Although these mature reservoirs have lower bottom hole pressure, recently developed techniques have lessened production decline compared to offsets drilled earlier on

INDUSTRY BRIEFS

Mar 20, 1995 NORWAY may agree to supply gas to Denmark following talks between the two nations' energy ministers at a meeting in Reykjavik. Dansk Olie & Naturgas AS told Denmark's parliament an expected increase in domestic gas demand must be met through imports.

MOBIL SETS RECORDS AT WELL IN GERMANY

Mar 27, 1995 Mobil Erdgas-Erdol GmbH, a Mobil Corp. unit operating in Germany, has claimed a world depth mark for a horizontal well at a drillsite about 40 miles southwest of Hamburg. Mobil drilled Z-10 Soehlingen to a record 15,688 ft true vertical depth, cutting 2,066 ft of horizontal hole in Permian Rotliegendes tight sand pay. The well went to 18,860 ft measured depth. Mobil also claimed a world depth record for multiple hydraulic fracturing. Stimulation amounted to four frac jobs in the horizontal

INDUSTRY BRIEFS

Apr 10, 1995 AN ANCHORAGE superior court judge ruled Exxon Corp. does not have pay anything to Alaskan native corporations to compensate for damage to native and public lands as a result of the Mar. 24, 1989, Exxon Valdez tanker spill off Alaska. That followed a jury verdict 6 months ago calling for Exxon to pay the plaintiffs $9.7 million in damages. The judge, who presided over that trial, said the native corporations were more than compensated through a federal liability fund and a previous legal

NORTH DAKOTA LODGEPOLE OIL PLAY SPREADING

Apr 17, 1995 A play for oil and gas in carbonate mounds in the Lodgepole member of Mississippian Madison is fanning out into at least three western North Dakota counties. This area of the Williston basin has been host to three discoveries in and just south of Dickinson oil field in Stark County since February 1993. The wells have flowed generally 1,500-2,700 b/d of oil plus 1-2 MMcfd of gas from Lodgepole intervals at about 9,800 ft. Unconfirmed reports have held that wells have flowed oil at rates two to

TIGHT OKLAHOMA GAS SANDS REMAIN AN ATTRACTIVE PLAY

Apr 24, 1995 Gary L. Cartwright Marathon Oil Co. Oklahoma City The Cherokee tight gas sands of Oklahoma remain an attractive play because of improvements in drilling and completion practices and actions by the Oklahoma Corporation Commission (OCC) that allow separate allowables for new wells. The expired federal tax credits for tight gas wells, as highlighted in a recent article,1 have not been the only reason for increased activity.

INDUSTRY BRIEFS

May 1, 1995 KERR-MCGEE CORP., Oklahoma City, will report its refining/marketing business as discontinued as of May 2. It does not expect to report a gain or a loss in first quarter earnings as a result. In recent weeks, Kerr-McGee has signed contracts or letters of intent to sell its Cotton Valley, La., and Corpus Christi refineries, its Cato Oil & Grease Co. unit, 41 service stations in Oklahoma and Kansas, several products terminals, and its ROSE heavy oil refining process (OGJ, Apr. 24, p. 35). A TOTAL

ASSESSMENT OF POTENTIAL AROUND JM, WILL-O FIELDS, VAL VERDE BASIN

May 22, 1995 Ali Said Trabelsi David K. Davies & Associates Inc. Houston A relatively deep Cambro-Ordovician Ellenburger gas prospect exists around JM gas field in Crockett County and Will-O gas field in Val Verde County of southern West Texas (Fig. 1) (31263 bytes) . These fields, discovered in 1965 and 1971, respectively, produce nonassociated gas from Ellenburger carbonates. Average porosity of the reservoir rocks is 4%, and permeability ranges between 0.1-10.0 md.

USE OF IODINE SURFACE GEOCHEMICAL SURVEYS IN THE LODGEPOLE AND MINNELUSA PLAYS, U.S. NORTHERN ROCKIES

Jun 5, 1995 Steven A. Tedesco, Sherri Bretz Atoka Geochemical Services Corp. Englewood, Colo. The use of surface geochemistry is becoming more prevalent in oil exploration, especially for focusing specific target areas for 2D and 3D seismic surveys. Presented here are two surface geochemical surveys utilizing the iodine method in delineating Upper Minnelusa sands of Permian age in the Powder River basin and Lodgepole Waulsortian-like mounds of Mississippian age in the Williston basin (Fig. 1)(57774 bytes)

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.

SURVEY SHOWS SUCCESSES, FAILURES OF HORIZONTAL WELLS

Jun 19, 1995 W. Gregory Deskins, William J. McDonald Maurer Engineering Inc. Houston Thomas B. Reid U.S. Department of Energy Bartlesville, Okla. Industry's experience now shows that horizontal well technology must be applied thoughtfully and be site-specific to attain technical and economic success. This article, based on a comprehensive study done by Maurer Engineering for the U.S. Department of Energy (DOE), addresses the success of horizontal wells in less-publicized formations, that is, other than

INDUSTRY BRIEFS

Jun 19, 1995 PENNZOIL PRODUCTS CO. unit Atlas Processing Co. let contract to Jacobs Engineering Group Inc., Pasadena, Calif., for engineering, procurement, and construction management services for a $200 million upgrade of Atlas' Shreveport refinery that will boost gasoline production to 16,000 b/d from 6,500 b/d. The project includes addition of a 10,500 b/sd resid catalytic cracking unit and new alkylation, isomerization, and sulfur recovery units. Upgrade is to be complete in late 1996.

INDUSTRY BRIEFS

Jul 3, 1995 TAIWAN'S state owned Chinese Petroleum Co. (CPC) is a potential buyer for part of the 11.74% share of Syncrude Canada Ltd., Edmonton, put up for sale by Alberta. Murray Smith, Alberta minister of economic development and trade, said CPC is considering buying a 5% interest in the Syncrude oilsands operation at Fort McMurray, Alta. Murphy Oil Co., Calgary, a unit of Murphy Oil Corp., bought a 5% interest in Syncrude in 1 993 for $1 50 million (Canadian). SOLV-EX CORP.,

U.S. DRILLING DUE SECOND-HALF REBOUND; CANADA'S BINGE COOLS

Jul 31, 1995 G. Alan Petzet Exploration Editor Robert J. Beck Associate Managing Editor-Economics U.S. drilling in the second half of 1995 will pick up from the low first-half level, pushing the total number of wells drilled during the year to about the level of 1994. Drilling is easing in Canada from the binge of 1994, but it is still above 1992-93 levels. Here are highlights of OGJ's midyear U.S. drilling forecast for 1995 (43926 bytes): Operators will drill 21,900 wells, compared with the 21,950

WILLISTON LODGEPOLE ACTIVITY SPREADS

Aug 7, 1995 G. Alan Petzet Exploration Editor Oil discoveries are drawing numerous operators to a Mississippian Lodgepole play in the Williston basin. The play is also stimulating significant 3D seismic acquisition aimed at helping operators pick out Lodgepole mounds about 10,000 ft deep. Here is the approximate status of the play as of end-July:

INDUSTRY BRIEFS

Aug 14, 1995 PT Asia Pacific Petroleum (APP), Jakarta, South Korea's Daewoo Corp., and Australia's Austrade agreed to build a $1.5 billion, 150,000 b/d export refinery at Situbondo, East Java. Daewoo is to begin construction within 6 months and complete the project in 3 years. The refinery will process Middle East crude. APP is controlled by Indonesian President Suharto's son Bambang Trihatmojo. Austrade is an agency of Australia's Department of Industry & Technology. Koch Refining Co.,

EXPLORATION North Dakota's Dickinson Lodgepole discovery: a preliminary exploration model

Aug 14, 1995 Julie A. LeFever North Dakota Geological Survey Grand Forks, N.D. S.P. Halabura North Rim Exploration Ltd. Saskatoon, Sask. David W. Fischer Independent geologist Grand Forks, N.D. Carol D. Martiniuk Manitoba Energy and Mines Winnipeg Interest in the Mississippian Lodgepole formation of North Dakota has intensified since the successful completion of the Duncan Oil Inc. 1-11 Knopik flowing 2,707 b/d of oil and 1.55 MMcfd of gas (430 cu m of oil and 43,891 cu m of gas. This is the first
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