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1-20 of 45
Keywords: strength
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Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 25 (06): 848–856.
Paper Number: SPE-8073-PA
Published: 01 December 1985
..., a uniaxial compression-failure condition should predict perforation failure leading to sand influx in production wells. The major difference between these situations is that, at sufficient depth of burial, the tensile strength of a friable rock mass has only a minor effect on the fracturing pressure level...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 25 (02): 157–170.
Paper Number: SPE-11634-PA
Published: 01 April 1985
...R. A. Cutler; D. O. Enniss; A. H. Jones; S. R. Swanson Lightweight, intermediate-strength proppants have been developed that are intermediate in cost between sand and bauxite. A wide variety of proppant materials is characterized and compared in a laboratory fracture conductivity study. Consistent...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 24 (01): 19–32.
Paper Number: SPE-9878-PA
Published: 01 February 1984
... fractures in layered rock: (1) a weak interfacial shear strength of the layers and (2) an increase in the minimum horizontal compressive stress in the bounding layer. The second condition is more important and more likely to occur at depth. Differences in elastic properties within a layered rock mass may...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 23 (02): 238–248.
Paper Number: SPE-10653-PA
Published: 01 April 1983
... strength during the first 15 million PV. Thereafter, System D appeared to be better. System A exhibited the highest initial permeability, and, after 5 million PV, Systems A, B, and D were about equal in permeability. From that point, the permeability of System A slowly increased, while decreasing...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 23 (02): 292–300.
Paper Number: SPE-9625-PA
Published: 01 April 1983
... to 200 g/dm 3 ) sodium chloride at temperatures from 100 to 300° F (38 to 149°C), with pressures from 100 to 3,000 psig (689 to 20 684 kPa), and total ionic strengths of 0 to 3.43. This paper also describes the experimental technique employed and the special equipment designed for this study. Copyright...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 22 (06): 883–898.
Paper Number: SPE-9650-PA
Published: 01 December 1982
.... This criterion relates fluid flow forces to rock strength properties. Consideration also has been given to the stress distribution around a cased hole. It is shown that a decrease in the size of the plastic zone relative to an uncased hole occurs. 18 12 1980 3 5 1982 2 8 1982 1 12 1982 1...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 22 (05): 609–615.
Paper Number: SPE-11238-PA
Published: 01 October 1982
... to the design of a casing program, an economical and safe one could be obtained. 8 5 1981 26 5 1982 18 1 1982 1 10 1982 1 10 1982 Copyright 1982, Society of Petroleum Engineers pipe axial tension load external pressure casing design collapse strength plastic collapse...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 22 (03): 420–428.
Paper Number: SPE-10905-PA
Published: 01 June 1982
...M. Hanzawa; H. Yokota; Y. Toda; K. Yokoyama Factors influencing tensile fatigue strength of 50-mm wire ropes were investigated with a wire-breakage detecting system. The fatigue strength increased with an increase in wire strength and diameter and a decrease in self-rotativity of ropes. The epoxy...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 22 (01): 151–156.
Paper Number: SPE-10853-PA
Published: 01 February 1982
... are a small fraction of the total vessel wall thickness. Cladding was applied to the notch area of Type A specimens only as shown in Fig. 1 . As a result of large section of Type A specimens, the cladding did not affect the strength significantly compared with unclad specimens. Clad specimens were fatigue...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 21 (05): 623–631.
Paper Number: SPE-8978-PA
Published: 01 October 1981
...J. S. Ward; F. David Martin Loss of solution viscosity in water of increasing ionic strength is a major problem encountered in the use of the partially hydrolyzed polyacrylamide polymers for improved oil recovery. It is recognized widely that the viscosity loss is more drastic in the presence...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 21 (04): 415–424.
Paper Number: SPE-9384-PA
Published: 01 August 1981
... hydraulic fracturing acidizing polymer conclusion precipitate viscosity fracturing materials reaction rate acid stability evaluation coefficient strength proppant fracturing fluid Gelled acids have been used for many years to improve the effectiveness of fracture acidizing treatments...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 21 (02): 236–248.
Paper Number: SPE-8427-PA
Published: 01 April 1981
... strength reservoir geomechanics arch surface criterion fluid dynamics tangential stress experiment equation stability shell collapse stress solution upstream oil & gas coulomb zone hydraulic fracturing petroleum engineer journal flow rate total collapse reservoir surveillance radial...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 21 (01): 43–50.
Paper Number: SPE-8076-PA
Published: 01 February 1981
... collapse reduced the permeability. The ultimate strength of the chalks increased with increasing confining pressure. The yield strength increased initially, but at higher confining pressures it decreased until it yielded under hydrostatic stress. Relatively high pore-pressure gradients developed when...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 20 (05): 349–356.
Paper Number: SPE-8215-PA
Published: 01 October 1980
... tensile fracture strength of rock is measured readily using such methods as direct tension and brazilian tests. Dynamic tensile strengths have been measured with Hopkinson bar and impact techniques and are characteristically a factor of two to 10 higher than static values. Hagen, 1 in a review...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 20 (04): 304–310.
Paper Number: SPE-8601-PA
Published: 01 August 1980
.... Although concrete does suffer progressive loss of strength with increasing number of cycles, a comparison of the Wohler curves developed on the basis of laboratory tests with the probable distribution of compressive stresses during a service life in an environment such as the North Sea shows extremely low...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 19 (05): 301–312.
Paper Number: SPE-6734-PA
Published: 01 October 1979
...P.J. Closmann; W.B. Bradley The analysis of underground oil-shale recovery processes requires knowledge of the mechanical properties of oil shale at various temperatures. The tensile strength, compressive strength, and Young's modulus are of special importance. The variation of these properties...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 18 (05): 291–299.
Paper Number: SPE-6244-PA
Published: 01 October 1978
... and are described here. The analytical simulations agree well statistically with The motion measurements. A caisson design procedure considering dynamic effects was developed Design considerations include ultimate strength failure, fatigue failure, excessive motion, and possible damage during installation. A key...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 17 (06): 391–397.
Paper Number: SPE-6206-PA
Published: 01 December 1977
... degrees F; gel strength can be controlled to produce the level of flow reductions required for a particular application. Controlled flow reduction, rather than complete flow blockage, is needed where the loose streak may contain appreciable amounts of oil recoverable by further waterflooding...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 16 (06): 307–309.
Paper Number: SPE-5940-PA
Published: 01 December 1976
...S.Y. Chow; G.L. Kalousek This paper describes research relating some of the indicated low strengths of hot-well cements to the CaO/SiO ratio and the amount of A120. An optimum composition was 5 CaO: 6 Si02 plus 7-percent A1203. The A1203 stabilized tobermorite to about 250 deg. C (482 deg. F...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 16 (02): 97–109.
Paper Number: SPE-5489-PA
Published: 01 April 1976
... drilling operation management risk and uncertainty assessment risk assessment Engineering Soil mechanics reserves evaluation risk management Upstream Oil & Gas foundation div Geotechnique application probability Proc variability coefficient loading strength variation bearing capacity...
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