Abstract:
A velocity string for increasing fluid velocity in a production tubing (1) of a wet natural gas production well is configured downhole by: - inserting components (5) for configuring an annular liner (4) into the production tubing (1); and - clustering the components together in an annular space (9) adjacent to an inner surface of the production tubing (1) to configure the annular liner (4) in a cost effective manner without requiring killing the well with a high density liquid, expensive hoisting and/or other workover equipment and materials required to install conventional corrosion resistant steel velocity strings.
Abstract:
The invention relates to a ship containment system for storing and/or transporting liquefied hydrogen, which system comprises a spherical cargo tank arrangement within the ship's hull, wherein (a) the cargo tank is supported by a skirt arrangement mounted on the hull of the ship through which the tank is mounted in the ship without direct contact between outer layer of the cargo tank [4] and the hull, with hold spaces [10] between the cargo tank and the hull, and comprising a structural transition joint [8] between the upper part of the skirt and the lower part of the skirt; and which system is further provided with (b) a pump for loading and discharging the liquefied gas located in a pump tower [1]; (c) a tank cover [2]; (d) a cargo tank insulation layer [3] that is applied to the outer layer of the cargo tank [4]; wherein: the inner side of the ship's hull [6] is provided with an insulation layer [11], covered by an internal lining at the side of the hold spaces [10], being any suitable foil at the vertical sides of the inner hull, and at the sides below the cargo tank on the bottom of the ship's hull structure [9] being a membrane showing minimal expansion and/or contraction under the conditions applied; the hold spaces [10] are filled with an inert gas and are provided with means for managing pressure and means for monitoring temperature; the skirt is mounted on the hull structure with a mounting setup that comprises a insulating layer in between the skirt and the inner side of the inner hull [ 6 ]; and the tank cover (2) is provided with an internal insulation layer [12]. Further, the invention relates to a process for managing insulation of said ship containment system and a process for managing leakages of said ship containment system.
Abstract:
A process for the production of a polyurethane foam having a resilience of at least 50%, said process comprising reacting (i) a first polyether polyol comprising polyether chains containing no more than 20% ethylene oxide content, and having a primary hydroxyl content of no more than 25%; (ii) a second polyether polyol comprising polyether chains containing at least 50% ethylene oxide content; and (iii) one or more aromatic polyisocyanates, in the presence of one or more catalysts having gelling and/or blowing activities.
Abstract:
At least two groups of at least two concerted sources within a first cluster of concerted sources are involved in a system and method for acquisition of seismic data. The groups of concerted sources each comprise a first concerted source, which is induced to start a frequency sweep at a certain time. Every remaining concerted source within the same group is induced to start its respective frequency sweep at the same time as the first one, or within a preselected maximum period later than the first one. The first concerted source in one of the groups is induced to start its frequency sweep upon expiry of a certain delay (slip time) following the preselected maximum period of the other of the groups. The slip time comprises a predetermined fixed minimum amount of slip time supplemented with a relatively small amount of variable slip time, which represents a slip time dither.
Abstract:
A method of inspecting a length of pipe having a pipe wall and a nominal inner diameter, comprising providing an inspection pig configured for passing along the length of pipe, wherein the inspection pig is provided with a substantially circumferential inside-out capacitance tomography sensor arrangement having a diameter smaller than the nominal inner diameter; passing the inspection pig along the length of pipe thereby defining an annular space between the sensor arrangement and the pipe wall; conducting measurements using the sensor arrangement at a plurality of locations along the length of pipe, and deriving, for each of the plurality of locations, information about an interface surrounding the inspection pig from the measurements. Further provided is an inspection pig for inspecting a length of pipe, wherein the inspection pig is provided with an inside-out capacitance tomography sensor arrangement.
Abstract:
A catalytic process for the hydrogenation or hydrogenolysis of a reactant in a reactor in the presence of hydrogen and liquid water is disclosed. The catalyst is stable under hydrothermal conditions.
Abstract:
Catalyst composition comprising a carrier and one or more Group 10 metal components, wherein the carrier comprises (i) 20 to 90 wt% mordenite having a silica to alumina molar ratio in the range of from 10 to 60; (ii) 10 to 70 wt% ZSM-5 type zeolite having a silica to alumina molar ratio in the range of from 5 to 50 and an average particle size in the range of from 5 to 50 nm; and (iii) 10 to 50 wt% of binder; a process for preparing the catalyst, and a process for the conversion of an aromatic hydrocarbons-containing feedstock using the catalyst.
Abstract:
A gasification system for the partial oxidation of a carbonaceous feedstock to at least provide a synthesis gas, comprising: a reactor chamber for receiving and partially oxidizing the carbonaceous feedstock, the reactor chamber having a reactor chamber floor; a quench chamber below the floor of the reactor chamber for holding a bath of liquid coolant; an intermediate section at said reactor chamber floor, the intermediate section having a reactor outlet opening through which the reactor chamber communicates with the quench chamber to conduct the synthesis gas from the reactor chamber into the bath of the quench chamber; at least one layer of refractory bricks arranged on and supported by the reactor chamber floor, the lower end section of the refractory bricks enclosing the reactor outlet opening and defining the inner diameter thereof; and a dip tube extending from the reactor outlet opening to the bath of the quench chamber, the dip tube having a widened top section.
Abstract:
Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular a vinyl iodide impurity, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.
Abstract:
The invention provides a reaction system for the production of ethylene carbonate and/or ethylene glycol, said reaction comprising a guard bed system positioned upstream of a catalytic EO reactor, said guard bed system comprising a feed line supplying a gaseous feed to be treated and an effluent line configured to remove the treated gaseous feed and two or more guard bed vessels arranged in series in sequential order, each guard bed vessel comprising an inlet, a bed of guard bed material and an outlet, wherein the inlet of each guard bed vessel is attached by means of valves to both the feed line and the outlet of the guard bed vessel preceding it in sequential order and wherein the outlet of each guard bed vessel is attached by means of valves to both the effluent line and to the inlet of the guard bed vessel following it in sequential order and wherein the guard bed vessel following the last guard bed vessel in sequential order is the first guard bed vessel in sequential order.