摘要:
A blade is made of a heat-treat-able and corrosion resistant steel, preferably 440C stainless, that has one or two sharp edges for resurfacing ice, such as at an ice rink with an ice resurfacing machine, such as a Zamboni® resurfacing machine. It uses at least one attached mounting bolt; and may have a removable safety cover mounted to it. The method of producing the blade includes: selecting a corrosion resistant metal; forming it to have one or two sharp edges; defining a receiver hole for receiving a threaded mounting bolt; heat-treating to a hardness of about 55; machining; and securing a mounting bolt through the blade to align with a mounting location. The blade may contain stiffening inserts. The blade may contain a bushing to secure and precisely locate the mounting bolt.
摘要:
A metallic wall clad with thermal insulation has a layer of insulating blocks spaced from the wall, the blocks being spaced apart and each block being individually and rigidly secured to the wall, the interspaces being substantially closed against convectional flow of liquid by resilient closure members, and a membrane covering for the layer of blocks, the covering having venting means to allow liquid from the vessel to penetrate between the covering and the wall.
摘要:
A method is disclosed for producing hydrocarbon fluids through a well having a well casing string with a casing section which is surrounded by an annular space which comprises a sensor assembly for measuring electromagnetic and/or other physical properties of solid and fluid materials within the annular space, in an underground formation surrounding the annular space and/or within the interior of the section of the casing string, wherein the sensor assembly is mounted on a body of swellable material, such as a swellable rubber or other elastomeric material, which is secured to the outer surface of said casing section and presses the sensor assembly against the inner surface of the surrounding underground formation after the casing string has been lowered into the wellbore.
摘要:
To protect a hydraulic, electric and/or other conduit in an annular space around a well casing against damage from perforating and other well operations the conduit is arranged in a groove in a U- or V-shaped protective gutter, which is secured to the outer surface of the well casing and which is capable of deflecting a shaped charge.
摘要:
A pressure sensor assembly comprises a sensor housing having a flexible wall that is configured to deform in response to a pressure difference between the interior and exterior of the sensor housing; —a first fiber optical cable section that is bonded to the flexible wall of the sensor housing such that the length of the first fiber optical cable section changes in response to deformation of the wall in response to the said pressure difference; a second fiber optical cable section which is bonded to a thermal reference body, which body is connected to the sensor housing by a strain decoupled connection mechanism, such as a tack weld or flexible glue, and is configured to deform substantially solely in response to thermal deformation, such that the length of the second fiber optical cable section solely changes in response to thermal deformation of the thermal reference body.
摘要:
Methods for temporarily protecting a surface of a glass article by coating the surface are provided. The methods include forming a stable, hydrophobic, removable film on the surface at the end of the glass manufacturing process while the glass is still at an elevated temperature (e.g., above 175° C.). The film reduces chip adhesion to the surface as a result of cutting and grinding. After cutting and grinding, the film is removed allowing the glass to be used in such processes as the manufacture of liquid crystal displays (LCDs).
摘要:
To protect a hydraulic, electric and/or other conduit in an annular space around a well casing against damage from perforating and other well operations the conduit is arranged in a groove in a U- or V-shaped protective gutter, which is secured to the outer surface of the well casing and which is capable of deflecting a shaped charge.
摘要:
A pressure sensor assembly comprises a sensor housing having a flexible wall that is configured to deform in response to a pressure difference between the interior and exterior of the sensor housing; -a first fiber optical cable section that is bonded to the flexible wall of the sensor housing such that the length of the first fiber optical cable section changes in response to deformation of the wall in response to the said pressure difference; a second fiber optical cable section which is bonded to a thermal reference body, which body is connected to the sensor housing by a strain decoupled connection mechanism, such as a tack weld or flexible glue, and is configured to deform substantially solely in response to thermal deformation, such that the length of the second fiber optical cable section solely changes in response to thermal deformation of the thermal reference body.
摘要:
A method is disclosed for producing hydrocarbons through an instrumented smart well containing a well tubular (6,29-32) and an assembly of power, DTS and/or other sensing and/or signal transmission cables (13,40-44) comprising at least one power and/or signal transmission cable, which is bonded along at least part of its length to an outer surface of the well tubular (6,29-32) by an adhesive, which preferably is reusable and/or has a thermal conductive of at least 3 W/mK or at most 0.2 W/mK.
摘要:
The invention relates to the transfer and distribution, notably in a biological or chemical analysis, of a small amount of liquid. The invention relates notably to a method which consists of providing a transfer tool (18) having at least one rod (10) whose lower surface (12) of pre-determined cross section is wettable and of which at least one side surface (14) is non-wettable; immersing the rod (10) into a reservoir containing a liquid, for a pre-determined period of time and at a pre-determined depth; removing the rod (10) from the reservoir so that a liquid drop is retained on the lower surface (12) of the rod (10); positioning the rod (10) over a receptor medium; and placing the drop in contact with a surface of a receptor medium. The invention also relates to the transfer tool (18) which has in its structure at least one rod (10) and to a method for making the transfer tool (18).