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Temperatures and interval geothermal-gradient determinations from wells in National Petroleum Reserve in Alaska
Temperature and related records from 28 wells in the National Petroleum Reserve in Alaska (NPRA) although somewhat constrained from accuracy by data gathering methods, extrapolate to undisturbed formation temperatures at specific depths below permafrost, and lead to calculated geothermal graidents between these depths. Tabulation of the results show that extrapolated undisturbed temperatures range from a minimum of 98/sup 0/F (37/sup 0/C) at 4000 feet (1220 m) to a maximum of 420/sup 0/F (216/sup 0/C) at 20,260 feet (6177 m) and that geothermal gradients range from 0.34/sup 0/F/100' (6/sup 0/C/km) between 4470 feet to 7975 feet (Lisburne No. 1) and 3.15/sup 0/F/100' (57/sup 0/C/km) between 6830 feet to 7940 feet (Drew Point No. 1). Essential information needed for extrapolations consists of: time-sequential bottom-hole temperatures during wire-line logging of intermediate and deep intervals of the borehole; the times that circulating drilling fluids had disturbed the formations; and the subsequent times that non-circulating drilling fluids had been in contact with the formation. In several wells presumed near direct measures of rock temperatures recorded from formation fluids recovered by drill stem tests (DST) across thin (approx. 10-20 foot) intervals are made available. We believe that the results approach actual values close enough to serve …
Date:
December 15, 1983
Creator:
Blanchard, D.C. & Tailleur, I.L.
System:
The UNT Digital Library
Development of Improved Oil Field Waste Injection Disposal Techniques
The goals of this DOE sponsored project are to: (1) assemble and analyze a comprehensive database of past waste injection operations; (2) develop improved diagnostic techniques for monitoring fracture growth and formation changes; (3) develop operating guidelines to optimize daily operations and ultimate storage capacity of the target formation; and (4) to test these improved models and guidelines in the field.
Date:
December 17, 2001
Creator:
Inc., Terralog Technologies USA
System:
The UNT Digital Library
Geochemical Enhancement Of Enhanced Geothermal System Reservoirs: An Integrated Field And Geochemical Approach
The geochemical effects of injecting fluids into geothermal reservoirs are poorly understood and may be significantly underestimated. Decreased performance of injection wells has been observed in several geothermal fields after only a few years of service, but the reasons for these declines has not been established. This study had three primary objectives: 1) determine the cause(s) of the loss of injectivity; 2) utilize these observations to constrain numerical models of water-rock interactions; and 3) develop injection strategies for mitigating and reversing the potential effects of these interactions. In this study rock samples from original and redrilled injection wells at Coso and the Salton Sea geothermal fields, CA, were used to characterize the mineral and geochemical changes that occurred as a result of injection. The study documented the presence of mineral scales and at both fields in the reservoir rocks adjacent to the injection wells. At the Salton Sea, the scales consist of alternating layers of fluorite and barite, accompanied by minor anhydrite, amorphous silica and copper arsenic sulfides. Amorphous silica and traces of calcite were deposited at Coso. The formation of silica scale at Coso provides an example of the effects of untreated (unacidified) injectate on the reservoir rocks. Scanning …
Date:
December 31, 2007
Creator:
Moore, Joseph N.
System:
The UNT Digital Library
Abandoned Texas oil fields
Data for Texas abandoned oil fields were primarily derived from two sources: (1) Texas Railroad Commission (TRRC), and (2) Dwight's ENERGYDATA. For purposes of this report, abandoned oil fields are defined as those fields that had no production during 1977. The TRRC OILMASTER computer tapes were used to identify these abandoned oil fields. The tapes also provided data on formation depth, gravity of oil production, location (both district and county), discovery date, and the cumulative production of the field since its discovery. In all, the computer tapes identified 9211 abandoned fields, most of which had less than 250,000 barrel cumulative production. This report focuses on the 676 abandoned onshore Texas oil fields that had cumulative production of over 250,000 barrels. The Dwight's ENERGYDATA computer tapes provided production histories for approximately two-thirds of the larger fields abandoned in 1966 and thereafter. Fields which ceased production prior to 1966 will show no production history nor abandonment date in this report. The Department of Energy hopes the general availability of these data will catalyze the private sector recovery of this unproduced resource.
Date:
December 1, 1980
Creator:
unknown
System:
The UNT Digital Library
Preliminary conceptual model for mineral evolution in Yucca Mountain
A model is presented for mineral alteration in Yucca Mountain, Nevada, that suggests that the mineral transformations observed there are primarily controlled by the activity of aqueous silica. The rate of these reactions is related to the rate of evolution of the metastable silica polymorphs opal-CT and cristobalite assuming that a{sub SiO{sub 2(aq)}} is fixed at the equilibrium solubility of the most soluble silica polymorph present. The rate equations accurately predict the present depths of disappearance of opal-CT and cristobalite. The rate equations have also been used to predict the extent of future mineral alteration that may result from emplacement of a high-level nuclear waste repository in Yucca Mountain. Relatively small changes in mineralogy are predicted, but these predictions are based on the assumption that emplacement of a repository would not increase the pH of water in Yucca Mountain nor increase its carbonate content. Such changes may significantly increase mineral alteration. Some of the reactions currently occurring in Yucca Mountain consume H{sup +} and CO{sub 3}{sup 2{minus}}. Combining reaction rate models for these reactions with water chemistry data may make it possible to estimate water flux through the basal vitrophyre of the Topopah Spring Member and to help confirm the …
Date:
December 1, 1993
Creator:
Duffy, C.J.
System:
The UNT Digital Library
Bodcau In Situ Combustion Project. Final report, June 1976-June 1982
The primary objective of the Bodcau In Situ Combustion Project was to demonstrate the operations and economics of a commercial scale in situ combustion project utilizing simultaneous air and water injection. This report includes pre-contract work, field facilities, injection and production performance, remedial work, monitoring, research support, a performance evaluation, and economics covering the contract life. The project was conducted on five patterns of Cities Service Company's Bodcau Fee B Lease. The five patterns were part of an eight-pattern expansion of Cities' combustion operations in the field. Thirty-eight producers, five injectors, and five observation wells were included in the patterns. Injection for the combustion phase (August 1976 through April 1981) was 10.1 BCF of air and 2.64 MM BBL of water. Cumulative water injection over project life was 5.15MM barrels. The combustion phase resulted in recovery of 626 M barrels of 19/sup 0/ API crude. Cumulative oil production amounted to 685 M barrels or 35% of the oil in place. Total expenditures for the project through June 30, 1982, were $10,450,790. Development costs for wells and equipment were $1,710,779.36; production and research services have amounted to $1,075,311; and lease operations and maintenance were $4,382,228. Decontrol tax amounted to $1,300,784. Total …
Date:
December 1, 1982
Creator:
Dean, D.M.
System:
The UNT Digital Library
Mountaintop Mining: Background on Current Controversies
This report provides background on regulatory requirements, controversies and legal challenges to mountaintop mining, and recent Administration actions. Congressional interest in these issues also is discussed, including legislation in the 111th Congress seeking to restrict the practice of mountaintop mining and other legislation intended to block the Obama Administration’s regulatory actions.
Date:
December 2, 2013
Creator:
Copeland, Claudia
System:
The UNT Digital Library
Selection of reservoirs amenable to micellar flooding. First annual report, October 1978-December 1979
The overall project objective is to build a solid engineering base upon which the Department of Energy (DOE) can improve and accelerate the application of micellar-polymer recovery technology to Mid-Continent and California sandstone reservoirs. The purpose of the work carried out under these two contracts is to significantly aid, both DOE and the private sector, in gaining the following Project Objectives: to select the better micellar-polymer prospects in the Mid-Continent and California regions; to assess all of the available field and laboratory data which has a bearing on recovering oil by micellar-polymer projects in order to help identify and resolve both the technical and economic constraints relating thereto; and to design and analyze improved field pilots and tests and to develop a micellar-polymer applications matrix for use by the potential technology users; i.e., owner/operators. The report includes the following: executive summary and project objectives; development of a predictive model for economic evaluation of reservoirs; reservoir data bank for micellar-polymer recovery evaluation; PECON program for preliminary economic evaluation; ordering of candidate reservoirs for additional data acquisition; validation of predictive model by numerical simulation; and work forecast. Tables, figures and references are included.
Date:
December 1, 1980
Creator:
Goldburg, A. & Price, H.
System:
The UNT Digital Library
National Institute for Petroleum and Energy Research quarterly technical report, July 1--September 30, 1992
Volume II includes: chemical flooding--supporting research; gas displacement--supporting research; thermal recovery--supporting research; geoscience technology; resource assessment technology; and microbial technology.
Date:
December 1, 1992
Creator:
unknown
System:
The UNT Digital Library
Hydrologic Studies in Wells Open Through Large Intervals. Annual Report, 1992
This report describes and summarizes activities, data, and preliminary data interpretation from the INEL Oversight Program R&D-1 project titled ``Hydrologic Studies In Wells Open Through Large Intervals.`` The project is designed to use a straddle-packer system to isolate, hydraulically test, and sample specific intervals of monitoring wells that are open (uncased, unscreened) over large intervals of the Snake River Plain aquifer. The objectives of the project are to determine and compare vertical variations in water quality and aquifer properties that have previously only been determined in an integrated fashion over the entire thickness of the open interval of the observation wells.
Date:
December 31, 1992
Creator:
unknown
System:
The UNT Digital Library
Cementing of geothermal wells. Progress report No. 7, October--December 1977
Progress in work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is reported. Work on the first element of the program management plan (problem definition) was completed and a report issued. The materials development and property verification phases of the plan are in progress. Plans for the down-hole testing phase of the program are being formulated. The most promising high temperature polymer cement (PC) system identified to date consists of a cross-linked mixture of styrene, acrylonitrile, and acrylamide in conjunction with a sand-cement filler. A study is in progress to optimize the concentrations of the mix components with respect to properties. Work to determine the pumpability of the system is in progress. Samples of PC have been removed after exposure at The Geysers to dry steam at 460/sup 0/F (238/sup 0/C) for 2 yrs. Visual inspection of the specimens indicated little apparent deterioration. The appendix includes five reports from contributing researchers on the development of high temperature cementing materials for geothermal wells.
Date:
December 1, 1977
Creator:
Steinberg, M. & Kukacka, L. E.
System:
The UNT Digital Library
Natural gas monthly, October 1990. [Contains glossary]
This report highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. 7 figs., 34 tabs.
Date:
December 28, 1990
Creator:
unknown
System:
The UNT Digital Library
Characteristics of geothermal wells located in the Salton Sea geothermal field, Imperial County, California
A summary is given of the geophysical, geochemical, and geothermal characteristics of wells located in the Salton Sea Geothermal Field. Based on the geothermal characteristics of the wells, a subsurface heat profile was developed for the entire geothermal field. Maps of temperature contours for specified depths throughout the field were also drawn.
Date:
December 15, 1975
Creator:
Palmer, T. D.
System:
The UNT Digital Library
Effects of overburden, biomass and atmospheric inversions on energy and angular distributions of gamma rays from U, K, Th, and airborne radon sources. Final report
This report describes a set of radiation transport calculations that were run with the AHISN S/sub n/ discrete ordinates code and a point kernel code to determine the energy, polar angle and height in air distributions of the total and direct gamma-ray flux densities from: (1) uranium sources of 3.2, 200 and 800 ppM in a sandstone orebody covered with biomass densities of 0, 10.2, 20.4, 51.0 and 102.0 kg/m/sup 2/; (2) thorium sources of 12, 25 and 80 ppM in a sandstone ore body covered with biomass densities of 0, 10.2, 20.4, 51.0 and 102.0 kg/m/sup 2/; (3) potassium source (2.5 wt %) in a sandstone ore body covered with biomass densities of 0, 10.2, 20.4, 51.0 and 102.0 kg/m/sup 2/; (4) constant airborne source with height for no inversion and for inversion layer heights of 65.22, 260.32 and 458.43 m; (5) exponentially decreasing airborne source for no inversion and inversion layer heights of 65.22, 260.32 and 458.43 m; (6) 3.2 ppM uranium source in overburden layers of 10.266, 17.110, 26.399 and 32.509 cm thick; (7) 12 ppM thorium source in overburden layers of 10.266, 17.110, 26.399 and 32.509 cm; (8) 2.5 wt % of potassium in overburden layers …
Date:
December 1, 1980
Creator:
Rubin, R.M.; Leggett, D. & Wells, M.B.
System:
The UNT Digital Library
Conditioning Water for Secondary-Recovery in Midcontinent Oil Fields
Report issued by the U.S. Bureau of Mines on results from a study of water-injection plants in the mid-continent oil producing area. The report lists the field methods used, and the analysis of available water for injection. This report includes maps, illustrations, and photographs.
Date:
December 1952
Creator:
Watkins, J. Wade; Willett, F. R., Jr. & Arthur, Charles E.
System:
The UNT Digital Library
Development of a cost-effective environmental compliance technology for stripper well brines. Quarterly report, October 1, 1993--December 31, 1993
In order to demonstrate to the EPA that brines from both stripper oil and marginal gas wells in the Appalachian Basin are capable of being treated and disposed of by discharge to streams in an environmentally safe manner, the existing research effort on stripper oil well brines will be continued and expanded to examine the range of brines produced from marginal gas wells. The specific object of the research is to demonstrate that the characteristics of wastewater from stripper oil wells and marginal gas wells are sufficiently similar to be treated under a standardized treatment methodology, that the environmental impacts of the discharge of treated brines from both stripper oil and marginal gas wells can be adequately regulated, and that the inclusion of marginal gas wells in the same category as stripper oil wells is appropriate, especially for wells operating in the Appalachian Basin.
Date:
December 31, 1993
Creator:
Adewumi, M. A. & Watson, R. W.
System:
The UNT Digital Library
Summary of low-temperature geothermal studies conducted by the Utah Geological and Mineral Survey from July 1, 1977 to December 31, 1984
Brief summaries of the results of studies of low-temperature geothermal areas are presented. These include state-wide studies, site-specific studies, and area studies. 26 refs., 2 figs. (ACR)
Date:
December 1, 1984
Creator:
Klauk, R.H.
System:
The UNT Digital Library
Sampling and Analysis Instruction for Installation of UPR-100-N-17 Bioremediation Wells and Performance of Bioventing Pilot Tests
Sampling and analytical requirements for in situ bioremediation pilot study for remediation of vadose zone petroleum hydrocarbon contamination.
Date:
December 30, 2008
Creator:
Thompson, W. S.
System:
The UNT Digital Library
Federal offshore statistics: 1992. Leasing, exploration, production, and revenues as of December 31, 1992
The Outer Continental Shelf Lands Act, enacted in 1953 and amended several times, charges the Secretary of the Interior with the responsibility for administering and managing mineral exploration and development of the outer continental shelf, as well as for conserving its natural resources. This report documents the following: Federal offshore lands; offshore leasing activity and status; offshore development activity; offshore production of crude oil and natural gas; Federal offshore oil and natural gas sales volume and royalties; revenue from Federal offshore leases; disbursement of Federal offshore revenue; reserves and resource estimates of offshore oil and natural gas; oil pollution in US and international waters; and international activities and marine minerals. 11 figs., 83 tabs.
Date:
December 31, 1993
Creator:
Francois, D. K.
System:
The UNT Digital Library
Report on Trachyte district, Henry Mountains area, Garfield and Wayne Counties, Utah
A report regarding the Trachyte District, located in the Henry Mountains Area, Garfield and Wayne Counties, Utah.
Date:
December 31, 1943
Creator:
Mastrovich, Anthony M.
System:
The UNT Digital Library
Energy supply strategy: getting technology commercialized, shale oil and enhanced oil recovery
Purpose is to identify factors inhibiting the near-term investment of industrial funds for producing oil from shale and through enhanced oil recovery, and to estimate the investment and production which would result if these deterrents were removed and suitable incentives provided. The barriers are discussed under the following categories: economic, environmental, institutional/regulatory, and technical. (DLC)
Date:
December 1, 1979
Creator:
Steger, J. E.; Sullo, P.; Michaelis, M. & Nason, H. K.
System:
The UNT Digital Library
Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County, Oklahoma
This Technical Quarterly Report is for the reporting period September 30, 2001 to December 31, 2001. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The vibration stimulation well was permitted as Well 111-W-27, section 8 T26N R6E Osage County Oklahoma. It was spud July 28, 2001 with Goober Drilling Rig No. 3. The well was drilled to 3090-feet cored, logged, cased and cemented. The Rig No.3 moved off August 6, 2001. Phillips Petroleum Co. has performed standard core analysis on the cores recovered from the test well. Standard porosity, permeability and saturation measurements have been conducted. Phillips has begun the sonic stimulation core tests. Calumet Oil Company, the operator of the NBU, has been to collecting both production and injection wells information to establish a baseline for the project in the pilot field test area since May 2001. The 7-inch Downhole Vibration Tool (DHVT) has been built and has been run in a shallow well for initial power …
Date:
December 31, 2001
Creator:
Brett, J. Ford & Westermark, Robert V.
System:
The UNT Digital Library
Failure Analysis Report: Well production casing Brady No. 5 well, Geothermal Food Processors, Inc., Fernley, Nevada
Failure of the casing of the Brady No. 5 resulted from severe external corrosion. The well is located in a mineral flat and it is proposed that during wet periods the exterior of the casing was exposed to aerated saturated chloride and/or sulfate salt solutions. These solutions appear to have completely destroyed the surface conductor and upper string casing and associated cements. The production casing then corroded until mechanical failure occurred.
Date:
December 1, 1979
Creator:
Ellis, Peter F.
System:
The UNT Digital Library
Petrology and Stable Isotope Geochemistry of Three Wells in the Buttes Area of the Salton Sea Geothermal Field, Imperial Valley, California, Usa
A detailed investigation is reported of cuttings recovered from three wells in the Salton Sea geothermal field located at the southeast end of the Salton Sea, California. The wells, Magmamax No. 2, Magmamax No. 3, and Woolsey No. 1 penetrate 1340 m, 1200 m, and 730 m, respectively, of altered sandstones, siltstones, and shales of the Colorado River delta. The wells are located at the crest of a thermal anomaly, reach a maximum of 320/sup 0/C at 1070 m, and produce a brine containing approximately 250,000 mg/1 of dissolved solids.
Date:
December 1, 1976
Creator:
Kendall, C.
System:
The UNT Digital Library