... and catalyst circulation rate. In a fluidized bed reactor, the fluidity of catalysts (which is dependent on hydrodynamic parameters such as the size of bubbles) affects the reactivity of the process. We have measured bubble diameter in a fluidized bed of FCA catalyst in order to determine its fluidity...

.... investigated several different metal oxide catalysts and inert ceramic packing in different size diameters. In these experiments it was shown that the improvement of yields over the inert ceramic materials are in a similar range as with the catalysts. Also it was shown that the yield of products are in similar...

... Abstract. When conventional drilling technology is used, good technical practices recommend that the surface and intermediate casing strings be run in holes with a diameter of up to 6-7 inches. larger than the casing. This procedure is based on the fact that: it is difficult to drill...

... inspection inspector operation Equipment Inspection Probe quality assurance accident Thickness diameter certification application competence operator customer Leak shutdown interpretation EQUIPMENT INSPECTION AND QUALITY ASSURANCE Jean Philippe Caruette, Total, Paris, Frunce Abstract...

... for cost reduction. Key technical parameters, such as pipeline diameter, operating pressure, transmission temperature, and compression ratio are influential factors on pipeline cost. Based on extensive calculations and analysis, the optimum range and possible development trend of these parameters are put...

.... The technique and technology available allows us to drill horizontal wells with a long and medium radius of curvature. The shortened motors of 95 and 105 mm diameter, which are now in the stage of development, will provide for drilling short radius wells (20–30 m). In the paper, the results of drilling...

... aspects. TECH NO LOGY STATUS The present overall status of offshore pipeline technology is characterized by achievements within a few projects, discussed below. The Zeepipe pipeline between the Sleipner field in the North Sea and Zeebrugge has a diameter of 40 and a length of 815 km between pigging...

... drilling diameter investigation turbodrill drilling mud USSR Drilling high temperature filtration loss instrumentation core sampler ULTRA DEEP DRILLING FOR THE INVESTIGATION OF THE EARTH'S CRUST E. P. Ilyasov, Mining engineer; Yu. R. Ioanesian, Design engineer; A. I. Bulatov, Mining engineer...

... under the general circumstances of the country's industrialization; and national ene drilling fluid chemistry drilling fluid formulation drilling fluid type rock strength drilling system drilling fluid selection and formulation Upstream Oil & Gas strength diameter characterization...

... résultera ( platform standard template structure barge water depth quantity installation jacket fabrication fabrication unit cost reduction Upstream Oil & Gas dimension skirt pile diameter extrapolation subsea system North Sea modification steel requirement foundation...

... environmental protection diameter Permafrost Area pipeline swamp US government thermokarst northern region operation environmental damage permafrost construction pipeline system trans-alaska pipeline trans-alaska oil pipeline USSR PROBLEMS OF ENVIRONMENTAL PROTECTION DURING CONSTRUCTION...

... 2 and 7. The prior studies report the influence that magnetization ex production logging particulate characteristic production control Downstream Oil & Gas bed solid minimum fluidization Reservoir Surveillance particle diameter magnetic field application fluidized bed sp 4...

... Abstract. A possible future 200 km long, 36-in-diameter crude oil pipeline from the Statfjord field, to Sotra, Norway will cross the Norwegian Trench in 355 m maximum water depth. A comprehensive study on construction and maintenance of this pipeline has been performed as part...

... to the replacement of jack-up platforms by floating supports such as drilling ships and semisubmersible platfor subsea system FPSO floating production system dynamic positioning system diameter Dyposemi sp 3 drillship Upstream Oil & Gas Positioning System positioning platform operation...

... Abstract The paper deals with new turbodrill designs of 190 mm size and above, capable of working over the range 150–300 rpm with bit weights from 1 to 1–5 t per cm of bit diameter. Methods of designing, described in the paper, made it possible to develop the turbodrills capable of working...

... pipeline of 2.5 m dia. is under design in the USSR. Other factors would indicate, however, that this is exceptional and the bulk of future demand will be for pipe diameters within the capacity of most modern mills. There may well be, however, an increase in demand for thick wall pipe at large diameters...

... maintenance cost and elimination of other drilling problems. Penetration rate and footage per bit are improved by reduced hydrodynamic pressure on the bottom-hole surface. In technical limit drilling deep well diameter penetration rate reduction drilling operation Efficiency pressure loss...

... concentration abrasive jet bit high-pressure pump drill string bit selection Upstream Oil & Gas conventional rotary drilling diameter jet velocity drilling fluid management & disposal groove nozzle particle abrasive jet drilling Drilling JETTED PARTICLE DRILLING Abstract A new drilling...

... of reported that when compared as equal fermentor the airlift fermentor design. In ad production control Upstream Oil & Gas superficial gas velocity diameter special reference Reservoir Surveillance flow rate airlift fermentor pressure loss power requirement draft tube diameter...

... combination hydrate inhibition asphaltene inhibition residue hydrocyclone hydrocarbon separation pressure drop enhanced recovery wax inhibition asphaltene remediation remediation of hydrates Efficiency experiment reduction solvent ratio separation diameter asphaltene concentrate asphaltene...