摘要:
Machine motion is directed using a graphical interface by establishing an icon in an image, displaying the icon in images having perspectives such that the icon is rendered in a corresponding relative position in the second images and moving the icons in the second images when the icon is moved in the first image, the movement being constrained along a line projected from a camera point associated with the first image and a target destination. Actions are defined using the icon and a set of action descriptors. The dominant motion space is constrained to a spherical coordinate frame centered on a vision locus and machine motions are mapped to coincide therewith based on a graphical interface view.
摘要:
Improved silicate drilling fluids are produced by the addition of tetra alkyl ammonium compounds, in particular tetra methyl ammonium hydroxide to silicate drilling fluid mud to lower the co-efficient of friction between drill string and wellbore. It has also been discovered that the same tetra alkyl ammonium lubricant compounds greatly lessen the viscosity breakdown of swelled hectorite clay in the presence of silicate. This allows the preparation of silicate drilling fluids not only with enhanced lubricity but having stable rheology at the higher temperature and pressures encountered in some drilling operations.
摘要:
This invention relates to new compositions and methods for cleaning textile substrates, especially carpet and upholstery fabrics. More particularly, this invention relates to liquid compositions that contain absorbent particles in a flowable fluid dispersion, which dries to a soil ladened powder, that can be removed by vacuuming, brushing, and/or laundering methods. The composition includes dispersion stabilizing additives such that the composition is presented as a stable dispersion or as a composition that may be easily redispersed prior to application.
摘要:
An improved drilling and completion fluid can be used in subterranean drilling for oil and gas. Sodium silicate and potassium silicate-based drilling fluids are commonly used drilling fluids with the notable attributes of exceptional shale stabilization characteristics coupled with exceptional environmental performance Environmental and wellbore stabilization characteristics are improved by using high ratio aqueous silicates wherein ratio is defined as the molar ratio of SiO2:Me2O, where Me is an alkali and is most commonly sodium or potassium (i.e. Na2O and K2O). For high ratio aqueous alkali silicates, the molar ratio of SiO2:Me2O can range from just over 4.0 to about 12.0.
摘要:
This invention relates to improved lubrication in drilling and completion fluids used in subterrain drilling for oil and gas. The addition of zinc dialkyl dithiophosphate (ZDDP) acts as a lubricant, an enhancer to other lubricants and rate of penetration enhancer.
摘要:
Embodiments of the invention relate to methods for making and compositions including aqueous alkali aluminosilicates used for conformance. The aqueous alkali aluminosilicates provide similar reaction characteristics of alkali silicates, an in addition provide enhanced conformance properties due to their ability to crystallize.
摘要:
The present invention relates to a method for ameliorating the salinity of drilling waste that is generated over the course of drilling for oil & gas using water-based drilling fluid. In particular for drilling waste that is generated when using a potassium silicate-based drilling fluid. Salinity is a common problem since salt-based additives are commonly added to drilling fluids to obtain certain desirable properties such as shale inhibition. Potassium salts represents a commonly used drilling fluid additive to inhibit the swelling and dispersion of shale. Salinity in the drilling fluid can further increase as a result of drilling fluid contact with the geological formations being drilled.
摘要:
A method and apparatus accommodate interaction phenomenon in a data-flow-based simulation of a system of elements, by establishing meta-modules to simulate system elements and by establishing world modules associated with interaction phenomena. World modules are associated with proxy modules from a group of meta-modules associated with one of the interaction phenomenon. The world modules include a communication world, a sensor world, a mobility world, and a contact world. World modules can be further associated with other world modules if necessary. Interaction phenomenon are simulated in corresponding world modules by accessing member functions in the associated group of proxy modules. Proxy modules can be dynamically allocated at a desired point in the simulation to accommodate the addition of elements in the system of elements such as a system of robots, a system of communication terminals, or a system of vehicles, being simulated.
摘要:
Disclosed are silicate-dextrin-clay adhesive compositions and process for making the same for use in paper products, such as, paper tubes, corrugated boards and corner boards.