Cleaning result

Finally, inadequate hole cleaning results in an overloading of the annulus with cuttings, especially in very high penetration rate, poor mud properties, and insufficient annular velocity or circulation time. Inadequate hole cleaning can also be experienced in deviated wells with the formation of cutting beds on the low side migrating in a sand dune fashion. 

Another aspect of epoxy resin mortar floorings which needs careful attention is that their coefficients of thermal expansion are approximately three times that of concrete. This, coupled with the relative low thermal conductivity of epoxy mortar, can cause stresses to be induced at the resin mortar/concrete interface under conditions of thermal shock (e.g. thermal cleaning), resulting in break-up of the flooring due to initial failure in the concrete. Two approaches have been tried to overcome this problem ... 

Economic benefits due to shorter downtimes, reduction of labor costs and better control of the cleaning results and efficiency. 

A literature survey was conducted to acquire information pertinent to the removal of trace elements from U.S. coals during physical and chemical cleaning. This survey included trace element associations with minerals and their affinities for organic or inorganic components in coal. Literature was also searched to ascertain the trace elements of concern with respect to coal utilization and for data reported previously on the removal of trace elements during physical and chemical coal cleaning. Results of these literature searches are discussed below. 

As described above, the limiting flatness of the surface is related to the smoothness of the Si/Si02 interface before etching and the kinetics of step recession. Thermal oxidation, as opposed to chemical treatment (e.g., RCA clean), results in a smoother interface region so that subsequent treatment of Si(lll) in buffered HF... 

Target foulants Recipe for chemical cleaning Results Reference... 

Figure 10a. Summary of Membrane Cleaning Results Water Permeability Data for AG Technology 500,000 MWCO Polysulfone Hollow Fibers...

On this particular point, the laboratories were invited to perform two extraction methods the common method previously described and their own method. Table 2, shows the results obtained according to the different methods utilized. Two types of results are presented for the common method the rough results and the clean results in which the systematic errors detected have been excluded. Concerning the results obtained by the laboratories with their own method, only rough results are presented. 

Fatty acids, such as oleic and coco fatty acid (saturation level) can serve a multifunctional role when added to HDLDs. Although they primarily provide a foam suppression capability, they can also precipitate out some of the calcium ions in the wash by forming calcium soap. This could, however, pose a problem, since soap scum, commonly known as lime soap, is insoluble and may have an impact on the overall cleaning result. 

Good cleaning results are also reached with so-called wired sponges, as used... 

Or make a detergent by blending Turbobrite L with 1-2% low-foaming nonionic surfactant to make for best cleaning results. Dilute Turbobrite L/surfactant blend at high pressure pump with water (128 1). 

Cations often interfere with each other in the final tests designed to detect the presence of specific cations. Therefore, cations must first be separated before identification can be accomplished. In fact, as with many chemical mixtures, separation of cations may be considerably more difficult than identification. Careful work is again very important if the separations are not clean, results in identification tests may be masked by interfering cations. Separation of a complex mixture of cations is by no means simple and is generally broken down into several parts. Each part involves a fairly small group of cations which can be isolated from the mixture on the basis of some property which is common to the ions in the group and then studied as a separate set. After isolation, the cations within a group are further resolved by means of a series of chemical reactions into soluble and insoluble fractions which are sufficient to allow identification of each cation by one or more tests specific to that ion once interferences have been removed. Various types of chemical reactions will be used for separations and identifications in this experiment precipitation reactions, acid-base reactions, complex ion formations, and oxidation-reduction reactions. 

Total Cost to Attain Desired Cleaning Results 4... 

The proper cycle to obtain the desired cleaning results can be determined by small-scale experiments. Where the mechanical action of the boiling solvent or warm liquid sprays will not give the required cleanliness, the use of ultrasonic energy can supplement cleaning. 

In the straight vapor cycle, all cleaning results from the condensation of the solvent vapors on exposed surfaces of the parts. Condensation continues until the part is heated to the vapor temperature. 

Complicated and intricately cored castings can be handled in rotating fixtures to provide excellent cleaning results and complete drainage in any of the immersion cleaning cycles. 

Manual spray equipment is applied usually where the total volume of work to be cleaned is small or the workloads are intermittent. Conveyorized equipment is preferred whenever it can be economically justified. The elimination of human error results in consistent cleaning results and maximum economy. 

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