| NEW EPOXY RESINS FOR ECONOMICAL FABRICATION OF ADVANCED COMPOSITES. |
1985 |
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| Authors:
R. W. HEWITT ; D. C. Bonner; SHELL DEVELOPMENT CO HOUSTON TEX
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| Subsurface Wave-Measuring Systems, |
NOV 1982 |
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| Authors:
George Z. Forristall; SHELL DEVELOPMENT CO HOUSTON TEX
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 | Pressure transducers were one of the first means used to measure waves in coastal waters. Nevertheless, some stigma has been attached to their use, since the wave signal is attenuated by overlying water. In some investigations, the correction for this attenuation has not been done, or has been done improperly. Contemporary high-resolution instruments and digital data processing techniques can now be used to get accurate wave data in many situations. ... |
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| 885 F Embrittlement in 12Cr Steel Distillation Column Tray |
APR 80 |
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| Authors:
E. L. Creamer; SHELL DEVELOPMENT CO HOUSTON TEX
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| A crude distillation column tray, fabricated supposedly from Type 410 stainless steel, failed in an extremely brittle manner after exposure to conditions which could induce 474 C embrittlement. An investigation confirmed that the tray had experienced 474 C embrittlement. Although the material met, according to analysis, Type 410 stainless steel composition requirements, it also contained a significant concentration of titanium, raising the suspicion that the alloy was Type 409 stainless ... |
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| Theory of Microwave Dielectric Constant Logging Using the Electromagnetic Wave Propagation Method |
MAY 1979 |
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| Authors:
R. Freedman; John P. Vogiatzis; SHELL DEVELOPMENT CO HOUSTON TEX
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| The composite dielectric constants of earth formations at microwave frequencies are strongly dependent on formation water saturations and relatively independent of water salinities. Therefore, microwave frequency dielectric constant logging offers an attractive new electromagnetic (EM) method of formation evaluation. A device which utilizes this method of well logging has been proposed By Calvert and Rau in two recent U. S. patents. We discuss the basic physics underlying the operation of ... |
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| Estimation of Consolidation Properties of Clay from Field Observations |
MAR 1979 |
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| Authors:
J. H. Pelletier; R. E. Olson; J. J. Rixner; SHELL DEVELOPMENT CO HOUSTON TEX
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| Analyses to obtain theoretical time-settlement curves for embankments typically make use of soil properties measured in the laboratory on small disturbed samples subject to strain rates and hydraulic gradients that are several orders of magnitude greater than those encountered in the field. Only anlayses of well-documented case histories can demonstrate the validity of such extrapolations. Refined analyses based on detailed field observations of settlements and pore water pressures at various ... |
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| Acoustic Microscope Images of Rock Samples |
OCT 1978 |
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| Authors:
J. S. Danburg; D. E. Yuhas; SHELL DEVELOPMENT CO HOUSTON TEX
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| FRACTURE OF CRACK DIVIDER Al/Al LAMINATES |
78 |
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| Authors:
R. D. Goolsby; SHELL DEVELOPMENT CO HOUSTON TEX
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| six al/al laminate panels of approximately 12.7 mm (0.50 in.) thickness were fabricated using diffusion, explosive, and roll bonding procedures. specific alloy systems investigated included: diffusion bonded and roll bonded 7475 al/1100 al and explosive bonded and roll bonded 7075 al/7072 al. a typical laminate consisted of five 2.3 mm (0.090 in.) 7475 al primary layers interleaved with four 0.13 mm (0.005 in.) 1100 al secondary layers. it was found ... |
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| Development of a New Wringer for the Zero-Relative-Velocity Belt Skimmer. |
NOV 1977 |
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| Authors:
J. M. Ward; SHELL DEVELOPMENT CO HOUSTON TEX
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| A simpler, lighter, and less expensive wringer mechanism has been developed for the ZRV Skimmer, a sorbent belt oil spill recovery vessel for use in fast currents. The new design, consisting of a large perforated drum and smaller peripheral rollers, is recommended to replace the original opposed conveyor design in the prototype skimmer. Performance tests comparing full-scale (but unit width) mock-ups of the new and original wringers showed that the ... |
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| Continental Shelf Currents in Tropical Storm Delia: Observations and Theory |
JUL 1977 |
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| Authors:
George Z. Forristall; Robert C. Hamilton; Vincent J. Cardone; SHELL DEVELOPMENT CO HOUSTON TEX
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| Storm currents are a significant part of the design hydrodynamic flow field in areas subject to tropical storms. In September 1973, tropical storm Delia passed over the instrumented Buccaneer platform located in 20 m of water 50 km south of Galveston, Tex. Current meter records from three depths show the storm produced currents on the order of 2 m s which persisted to near the bottom. A mathematical model of ... |
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| A Zero-Relative-Velocity Belt Skimmer, Stage II - Confirming Tests and Prototype Design. |
MAY 1977 |
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| Authors:
R. R. Ayers; J. M. Ward; SHELL DEVELOPMENT CO HOUSTON TEX
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| A 40-foot-long prototype skimming vessel has been designed which uses twin floating sorbent belts to recover spilled oil in 6-8 knot currents. Oil recovery rates up to 600 gpm are possible with the prototype because the composite belts are propelled at the same speed as the water (relative to the vessel). The performance of this zero-relative-velocity (ZRV) belt arrangement was tow-tested at full scale in calm water and in waves. ... |
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| IGNITION OF SOME COMMON ENGINEERING ALLOYS--THE CRITICAL ENERGY INPUT CONCEPT AND EFFECTS OF OXYGEN PRESSURE--PART 1--THE CRITICAL ENERGY INPUT CONCEPT IN METAL IGNITION--PART 2--IGNITION OF SOME COMMON ENGINEERING ALLOYS-- EFFECTS OF OXYGEN PRESSURE |
MAR 76 |
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| Authors:
H. U. Schutt; R. H. Knapp; W. R. Schmeal; SHELL DEVELOPMENT CO HOUSTON TEX
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| CONTROL OF HYDROGEN EMBRITTLEMENT IN DEEP GAS WELLS, |
1976 |
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| Authors:
J. W. KOCHERA ; R. N. Tuttle; SHELL DEVELOPMENT CO HOUSTON TEX
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| Volumetric Subsidence-Compaction Ratios for a Horizontally Stratified Elastic Half-Space |
SEP 1974 |
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| Authors:
A. S. Williamson; SHELL DEVELOPMENT CO HOUSTON TEX
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| Volumetric subsidence-compaction ratios have been established earlier for the homogeneous half-space by Geertsma and for the half-space with a rigid stratum below a compacting reservoir by Van Opstal. In the present paper additional results are presented for the same ratio for an elastic half-space, consisting of an arbitrary number of different isotropic, homogeneous strata, resting on a basement, which itself is an elastic homogeneous continuum. Compaction may occur in any ... |
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| Chemical and Physical Characterization of Tar Samples from the Marine Environment. |
JUN 1974 |
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| Authors:
P. R. Mommessin; J. C. Raia; SHELL DEVELOPMENT CO HOUSTON TEX
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| A physical and chemical characterization of tar samples recovered primarily from the northwestern part of the Atlantic Ocean and along the eastern coast of the United States was carried out. The task involved a multiparameter analysis scheme which included the measurement of thirty-two physical and chemical parameters, photography, and microscopic analysis of each sample. Two distinct types of tar samples were indicated. One type appears to be urban and industrial ... |
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| AN OIL RECOVERY SYSTEM UTILIZING POLYURETHANE FOAM -A FEASIBILITY STUDY. |
OCT 73 |
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| Authors:
R. A. Cochran; J. P. Fraser; D. P. Hemphill; J. P. Oxenham; P. R. Scott; SHELL DEVELOPMENT CO HOUSTON TEX
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| This report considers the use of urethane foam in recovering spilled oil from water surfaces. The foam is formed on the job site and comminuted and distributed onto the water by means of a hay blower. The used foam is disposed of by incineration. (AH-PL) ANNOTATION: A report on the use of urethane foam in absorbing oil in oil spills. |
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| The effects of melt processing variables on the morphology and properties of injection molded polypropylene. |
OCT 73 |
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| Authors:
M. R. Kantz; SHELL DEVELOPMENT CO HOUSTON TEX
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| Controlled variations in melt temperature and injection pressure during the injection molding of isotactic polypropylene tensile bars are correlated with differences in the skin-core morphology and preferred orientation as observed using optical microscopy and x-ray diffraction. The molding anisotropy is, in turn, related to systematic variations in tensile yield strength, notched Izod impact strength, and longitu-dinal shrinkage. The correlation between processing variables and morphology is used to construct a qualitative ... |
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| Variation in Shell 405 Catalyst Physical Characteristics, Test Catalyst Preparation. |
JUL 1973 |
18 pages |
| Authors:
Walter L. Petty; SHELL DEVELOPMENT CO HOUSTON TEX
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 | This report describes the continuation of a study for the Air Force Rocket Propulsion Laboratory to develop a catalyst of the Shell 405 type with improved durability to repeated cold starts using monopropellant hydrazine. Besides furnishing some standard grades of Shell 405 Catalyst, three experimental catalysts containing 36%, 44%, and 55% iridium were prepared for evaluation by the AFRPL. (Author) |
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| Orbital symmetry aspects to olefin metathesis. |
AUG 72 |
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| Authors:
F. D. Mango; SHELL DEVELOPMENT CO HOUSTON TEX
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| A catalytic process in the olefin metathesis reaction is investigated. Various studies for the orbital symmetry aspects to olefin metathesis reaction are reviewed. (P.S.-PL) ANNOTATION: Orbital symmetry aspects to olefin metathesis. |
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| a function of hydroxyl position in linear alcohols. |
MAY 70 |
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| Authors:
J. W. Hayden; SHELL DEVELOPMENT CO HOUSTON TEX
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| Esters of linear secondary alcohols are inferior plasticizers when comparedwith esters of linear primary alcohols of the same carbon number. Plasticizer performance becomes poorer as the hydroxyl group shifts towardthe center of the alcohol molecule. There is some evidence to suggest thatsecondary alcohols tend to dehydrate more rapidly than primary alcoholsduring acid catalyzed esterification. Volatility measurements indicatethat there is no significant difference in the stability of the esters attemperatures representative ... |
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| Chemical structure-Mechanical Properties Studies on Pure Epoxy Resin Systems, |
MAR 19 |
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| Authors:
C. J. Busso; H. V. Holler; H. A. Newey; SHELL DEVELOPMENT CO HOUSTON TEX
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| This report presents data on diepoxy cycloaliphatics, cyclic diepoxides,glycidyl amines and the miscellaneous epoxides tested. Data on all themetaphenylenediamine cured castings tested are correlated with chemicalstructure of the epoxide to support the following hypothesis: tensile andflexural strength are related to epoxide spacing and polarity of the chainsegment between crosslinks; compressive strength and heat distortion temperatureare a function of crosslink density and water absorption is related to theoxygen content of the ... |
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Reports by Corporate Author
