The modified polymeric TNGGS reagen
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THE MODIFIED POLYMERIC TNGGS REAGENT
One of the main effective ways of maintenance of technological parameters of the boring solutions applied in the course of drilling of wells is their chemical processing with polymeric reagents. Use of polymeric reagents promote receiving boring solutions with stable technological parameters and to increase them salts thermal stability. One of such reagents is the modified polymeric TNGGS reagent.
For production of the modified polymeric TNGGS reagent the special technology of preparation which differs from earlier used production technology of polymeric reagent of foreign countries is used. The preparation time of polymeric reagent differs in application, the simplified production technology and the reduced expense of energy carriers, and also.
The modified polymeric TNGGS reagent has to be produced according to the technological instruction approved in accordance with the established procedure and to conform to requirements of these specifications.
On organoleptic and physical and chemical indicators the modified polymeric TNGGS reagent has to conform to the requirements given in the table:
|
№ |
Name of indicators |
Characteristic and norms |
|
Appearance |
Yellow-white |
|
|
Solubility in water (10% of water solution) |
Vodorastvorim |
|
|
rn 1% of water solution, not less |
8.0 |
|
|
Density is 10% of water solution, kg/m3 |
1050-1070 |
|
|
Water return on the VM-6 device, in cm3/30min |
1.5-2,0 |
Structure and properties of clay drilling mud fluid on the basis of the modified polymeric TNGGS reagent
|
№ |
Composition of drilling mud fluid |
r, kg/m3 |
with |
mines |
|
||||
|
1000 ml water + 1 OO gr bentonite clay |
1060 |
18 |
40.0 |
4.0 |
7.0 |
||||
|
950 ml initial solution No. 1+50 of ml the modified polymeric TNGGS reagent |
1060 |
25 |
6,0 |
1.0 |
10.0 |
||||
|
900 ml initial solution No. 1+100 of ml the modified polymeric TNGGS reagent |
1060 |
33 |
4.0 |
1.0 |
10.5 |
||||
|
850 ml initial solution No. 1+150 of ml the modified polymeric TNGGS reagent |
1060 |
46 |
3.0 |
0.5 |
11.0 |
||||
|
825 ml initial solution No. 1+175 of ml the modified polymeric TNNGS reagent |
1060 |
50 |
2.5 |
0.5 |
11.5 |
||||
|
800 ml initial solution No. 1+200 of ml the modified polymeric TNNGS reagent |
1060 |
56 |
2.0 |
1.0 |
12.0 |
||||
|
825 ml initial solution No. 1+175 of ml the modified polymeric reagent "TNNGS" +300 gr NaCL |
1220 |
40 |
3.5 |
1.0 |
10.0 |
||||
|
800 ml initial solution No. 1+200 of ml the modified polymeric reagent "TNNGS" +300 gr NaCL |
1220 |
45 |
3.0 |
1.0 |
10.0 |
||||
Apparently from data of the table by means of the modified polymeric TNGGS reagent it is possible to prepare the fresh and mineralized clay boring solutions with the minimum value of an indicator of a filtration. With increase of concentration of the modified polymeric TNGGS reagent it is observed decrease in an indicator of a filtration, the studied clay boring solutions.