Bottom-hole sample: procedure

Table 1 summarizes the results of the field sample analyses standardized for polymer concentration. The quality of the field injection sampled collected both at the well and bottom compared closely to that of a laboratory weighed and dried polymer standard prepared in the field using normal laboratory procedures. This 300 mg/l polymer solution had a measured screen factor of 12. 9 and a viscosity, measured at 115 seconds" shear rate, of 3. 93 cp. Laboratory derived correlations showed that this standard corresponded to a mobility reduction effect, expressed in terms of a resistance factor, of 32. The close comparison between this unsheared standard and field injection samples implied that neither the surface nor bottom hole sampling induced any shear degradation. 

Procedure Weigh 200g sample and pour it into 250-ml graduated cylinder. Insert the cylinder thru the above mentioned hole and close the box. Lift the cylinder until, its bottom flange contacts the top of the box. Then drop the cylinder, again lift and drop it until 20 drops have been made, at the rate of one every 5 seconds. Read the volume of compacted powder in the cylinder... 

Procedure Weigh 200g sample and pour it into 250-ml graduated cylinder. Insert the cylinder thru the above mentioned hole and close the box. Lift the cylinder until its bottom flange contacts the top of the box. 

After a thin gas-permeable silica fiber sheet has been placed on the bottom of a draft cell, i.e., the cell with which the sample cell is prepared, 0.3 g of the sawdust of Port Orford cedar, which is of course a kind of the moisture-containing gas-permeable oxidatively-heating substance, is charged in the cell. The glass jig mentioned in a footnote in Section 7.3 is used at this time to provide a thin vertical hole at the center of the sawdust charged in the cell in order to facilitate the insertion of the thermocouple into the sawdust. 0.3 g was chosen herein as the standard sample quantity in the adiabatic oxidatively-heating test performed for the sawdust of every wood species. For the procedure to prepare the sawdust of each wood species, refer to Subsection 8.2.1. 

Experimental procedure used to fabricate two-dimensional arrays of polymeric microlenses on glass substrates, (a) Cross-sectional view of packing cell used to deliver monodispersed polystyrene beads into two-dimensional array of cylindrical holes patterned in thin film of PR spin coated on bottom glass substrate, (b) Fabrication of microlenses with hemispherical and mushroom-shaped profiles by annealing sample at temperatures above glass transition temperature of polystyrene ( 93°C). The formation of a hemispherical shape was driven by the minimization of the surface free energy. (Source Lu, Y., Y.D. Yin, and Y.N. Xia. 2001. Advanced Materials, 13(1), 34-37. With permission.)... 

Note 2—A suitable sampling chamber may be devised from a polyethylene wash bottle of nominal SOO-mL (I6-oz) or 1-L (32-oz) size. The wi bottle s internal delivery tube provides for delivery of the sample gas to the bottom of the bottle. A l2.S-mm ( A-in.) hole cut in the bottle s cap provides access for the detector tube and vent for the purge gas (Fig. I). (An alternate flow-through sampler may be fashioned using a I-gal Ziploc-type food storage bag. The flexible line enters one comer of the bag s open end and extends to the bottom of the bag. The opposite comer of the open end is used for tube access and sample vent. The remainder of the bag s top is sealed shut. The basic procedure for the sampler in Fig. 1 applies.)... 

---