DRILLING FLUIDS
STÜWA · Konrad Stükerjürgen GmbH
CONTENTS
Drilling Fluids
Regeneration Agent
Drilling Fluid Accessories
107Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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STÜWAMIX®
DRILLING FLUIDS
Application: Suitable as universal drilling fluid for horizontal and vertical drill holes.
STÜWAMIX® has been developed as an innovative drilling fluid concentrate consisting of a mixture of sodium bentonite and a modified natural polymer. In order to avoid lump formation, STÜWAMIX® has to be blended under pressure by means of an injector.
Advantages As opposed to other drilling fluids, STÜWAMIX®
is immediately usable for drilling after blending. STÜWAMIX® is suitable for all ROTARY,
SUCTIONRINSING AND HORIZONTAL BORING PROCEDURES, both in consolidated and in unconsolidated formations.
The inhibitors of STÜWAMIX® prevent the swelling of cohesive strata during the drilling process.
The turbulence is reduced due to the pure CMC (carboxymethylcellulose) in STÜWAMIX® in such a way that a perpendicular, true-to-gauge borehole can be sunk with only a small flushing rate, while the complete discharge of the drilling cuttings is still ensured.
During well drillings, the STÜWAMIX® drilling fluid is not to be dosed exceeding 20 kg/m3. Thus, a good settling effect of the drilling cuttings as well as a trouble-free removal of the filter cake are guaranteed during well development.
Blending is to be effected with neutral water (pH-index approx. 6.5–7.5). Should, contrary to expectations, only acid water be available, it is to be treated with approx. 2.5 kg/m3 sodium carbonate and pumped over for approx. 10 minutes. Afterwards, the ph-index should amount to 9–10.
After completion of the drilling, STÜWAMIX® can be simply suctioned off without additional activation. The product is insensitive to frost and hardness of water to a large extent. The viscosity of the suspensions declines under the influence of heat.
Technical dataFlushing parameter – vertical drill holesConcentration [kg/m³] 15 17.5 20 23
TAZ (hopper efflux time in sec.)* [s] 37 38 44 51
RAZ (remaining efflux time in sec.)* [s] 27 29 37 51
*measured with Marsh-hopper, further parameters on request, Please contact us in case of questions.
Flushing parameter – horizontal drill holesBlending recommendation [kg/m³]
Cohesive soils 20–25
Weakly unconsolidated soils 25–30
Strongly unconsolidated soils >30
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
Packaging unit:In sacks of 25 kg each, 40 sacks 1,000 kg on non-returnable pallets
Storage:Dry
108Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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Poly-anionic carboxy-methyl-cellulose / pure CMC Description:STÜWA-FLOW® PAC is a highly efficient poly-anionic cellulose of high purity. It significantly increases viscosity and improves the bearing capacity of the drilling fluid. Due to its excellent water-binding properties, STÜWA-FLOW® PAC decreases filtrate and supports the formation of a thin impervious filter crust. As protective colloid, STÜWA-FLOW® PAC prevents the swelling of penetrated clay layers, protects against further disintegration of the clay cuttings, and optimizes deposition during fluid processing.
Application:STÜWA-FLOW® PAC is applied as a pseudoplastic solution in geological formations in which an intensive discharge of cuttings without generation of a colloid layer is required or requested. Clay fractions can be penetrated in a safer way and with more accuracy to the drilling. When used in combination with flushing clays, STÜWA-FLOW® PAC should not be added until the clay swelled for a sufficient amount of time due to its clay-inhibiting effect.
Safety measures:When processing STÜWA-FLOW® PAC, no specific safety measures need to be taken. Spilled PAC powder generates a slippery layer when in contact with water and should be immediately absorbed in dry form. In case of contact with eyes or skin, simple rinsing with water is sufficient. PAC is not a dangerous working substance in accordance with the ArbStoffVo (German act on working substances).
Observe safety datasheet advice
Packaging unit:In sacks of 8 kg each, 63 sacks 504 kg on non-returnable pallets
Storage:Dry
SpecificationsIdentification Poly-anionic carboxy-methyl-
cellulose
Delivered as: Whitish, pourable powder
Ionogenity anionic
Bulk density, approx. [kg/m³] 500.0
Water content, max.: [%] 10.0
Level of etherification 0.9
pH (1% solution) 6.5-8.5
Temperature resistance, max.:
[°C / °F] 149 / 300
Toxicity not toxic
Freshwater dosage(best results in pH range from 8 to 12)
Pure STÜWA-FLOW® PAC wash fluid [kg/m³] 1- 4
STÜWA-FLOW® PAC bentonite wash fluid [kg/m³] 0.5-2.0
Depending on water quality and boring method
STÜWA-FLOW® PAC
DRILLING FLUIDS
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
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ANTISOL®Application:Anitsol® is suitable for the regulation of flow and filtration characteristics of drilling fluids in well sinking and water engineering as well as with geothermal drilling.
Advantages Antisol® FL 30000 is a highly viscous, anionic polymer.
It is characterised by its high viscosity and significant water absorptive capacity. Both qualities already show an effect when applying minor quantities.
The product can be combined with bentonite as may be necessary.
Antisol® FL 30000 is insensitive to electrolytes occurring in above mentioned areas of application.
It has high active contents. The effective viscosity and the water absorptive
capacity are immediately available.
For well sinking, the following drilling fluids have proved to be particularly suitable.
Antisol drilling fluids for well sinking
Type of fluid Application area: Dosage:
Pure Antisol® fluid for clay-/fine and medium sand soils
1–5 kg/m³ water
Bentonite-Antisol® fluid for coarse sand and gravel soils
1–2 kg/m³ water + 20 kg bentonite
Please note:When applying an Antisol bentonite fluid, the bentonite is to be blended first. The Antisol powder should be added only after a swelling time of at least 2 to 6 hours.
Packaging units:In sacks of 8 kg each, 63 sacks 504 kg on non-returnable pallet
Storage:Dry
DRILLING FLUIDS
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
110Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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DRILLING FLUIDS
HIPERCEL LVLow viscosity technical CMC
Description:HIPERCEL LV is a technical carboxylmethyl cellulose with low viscosity which is primarily added as a filtrate reducer to water-based drilling fluids. In addition to its water-retaining properties, HIPERCEL LV also modifies the flow value without considerably increasing the viscosity.
Application: The water-retaining and rheological features of HIPERCEL LV allow it to be used universally in a variety of dispersed and non-dispersed fluid systems. Due to its anionic character, the product exhibits excellent solubility in water and in drilling fluids saturated with salt. HIPERCEL LV makes the lowest filtrate level and gel strength possible while simultaneously ensuring good pumpability and lubrication. As a protective colloid, HIPERCEL LV prevents water-sensitive clays from swelling and also increases the stability of the drill hole. The product is resistant to polyvalent metal ions (Ca++, Mg++) and bacterial decomposition.
Safety Precautions:There are no particular safety precautions which need to be observed when using HIPERCEL LV.Spilled CMC powder forms a slippery film on contact with water and should be cleaned up immediately without using water. Should it come into contact with the eyes or skin, it can simply be washed out with water. According to ArbStoffVo (Dangerous Substances Regulations), CMC is not a dangerous substance.
Packaging unit:25 kg bags, 40 bags = 1,000 kg on pallett
Storage:Dry
Technical dataDelivery form whitish, free-flowing powder
Bulk density kg/m³ approx. 700 - 800
Moisture % approx. 6
Grade of etherification 0.8 - 0.9
Active content % approx. 55 - 60
pH (1% solution) approx. 7
Temperatur grade °C max. 150
Viscosity (2% Solution) mPas approx. 15 - 20 (Hoeppler) / OCMA DFCP 2
Toxicidity non-toxic
Dosage (best results with pH-range between 5 - 12)Fresh water flush kg/m ³ 3.0 - 8.5
Salt water flush kg/m ³ 5.5 - 14.0
Saturated salt water flush kg/m ³ 15.0 - 30.0
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
111Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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DRILLING FLUIDS
HIPERCEL HVHigh viscosity technical CMC
Description:HIPERCEL HV is a technical carboxymethly cellulose with high viscosity. The product is added primarily as a fast-acting thickening agent and filtrate reducer to all water-based fluid systems, but is also excellent for protecting clay suspensions.
Application: HIPERCEL HV is used primarily as a thickening agent in water-based fluid systems and for reducing filtrates, particularly to increase load capacity in clay-free or saltwater clay fluids. At higher doses, HIPERCEL HV still ensures good pumpability and is an excellent lubricant due to its molecular structure. HIPERCEL HV’s anionic character makes it highly soluable in water and in salt-saturated systems, and protects clay formations from water absorption and swelling. HIPERCEL HV is impervious to metal ions such as Ca++, Mg++ and is highly resistant to bacterial decomposition.
Safety Precautions:There are no particular safety precautions which need to be observed when using HIPERCEL HV.Spilled CMC powder forms a slippery film on contact with water and should be cleaned up immediately without using water. Should it come into contact with the eyes or skin, it can simply be washed out with water. According to ArbStoffVo (Dangerous Substances Regulations), CMC is not a dangerous substance.
Packaging unit:25 kg bags, 40 bags = 1,000 kg on pallett
Storage:Dry
Technical dataDelivery form whitish, free-flowing powder
Bulk density kg/m³ approx. 700 - 800
Moisture % approx. 7
Grade of etherification 0.8 - 0.9
Active content % approx. 55 - 60
pH (1% solution) approx. 7
Temperatur grade °C max. 150
Viscosity (2% Solution) mPas approx. 80 - 90 (Hoeppler) / OCMA DFCP 7
Toxicidity non-toxic
Dosage (best results with pH-range between 5 - 12)Fresh water flush kg/m ³ 4.0 - 8.5
Salt water flush kg/m ³ 9.0 - 12.0
Saturated salt water flush kg/m ³ 15.0 - 17.0
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
112Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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DRILLING FLUIDS
SODA LIGHTSodium carbonate Na₂CO₃
Description:Sodium carbonate (SODA) is a whitish powder and is used primarily to soften water. SODA is therefore highly suitable for raising the pH value in drilling fluids.
Please note: When using bentonite-water drilling fluid, the pH value of the water must be measured before beginning adding the fluid. The pH value can be raised by adding SODA when necessary.
To ensure that the components are correctly mixed, the SODA must be added before adding the bentonite.
Safety Precautions:It is essential to observe the corresponding safety data sheet in accordance with 1907/2006/EC, Article 31.
Packaging unit:25 kg bags, 40 bags = 1,000 kg on europallett
Storage:Dry (sufficiently aired)
Technical dataDelivery form whitish, free-flowing powder
Powder density g/l approx. 500 - 620
Sodium carbonate (Na₂CO₃)
% 99.6 (determined according to drying shrinkage at 270 - 300°C)
Sodium chloride (NaCl) % 0.030
Sodium sulphate % 0.020
Iron oxide (Fe₂O₃) % 0.003
Water-insoluable parts % 0.020
Drying shrinkage at 270°C
% 0.200
Dosage For fresh water fluids kg/m ³ up to approx. 1.0 *
* e.g. for 1m³ fluid 40 kg bentonite, 5 kg CMC LV, 1 kg soda = pH value 12, density 1.03
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
113Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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GS 550-DRILLING FLUID ADDITIVE
DRILLING FLUIDS
Application:GS 550 is a drilling fluid additive to stabilise the borehole wall, it serves as means for the extraction of drill cores in brittle and loose rock formations.
GS 550 is a substance used for the manufacturing of drilling fluids according to the respective conditions in the mountain. Thanks to the manifold properties of GS 550, the usage of complex and frequently expensive drilling-fluids can be virtually omitted. GS 550 is a water-soluble polymer/polyacrylamide with a high molecular weight.
Advantages Very good core extraction Excellent stability of borehole walls Small scouring of borehole No problems when drawing tubes Friction reduced by 20–30 % Reduction of drilling-fluid additive Lower wear (and tear) of tubes Reduction of inventory of parts stored at construction
site Lower water consumption Major gain of time (drilling, storage and
transport works)
Please note: NO drinking water approval.
Packaging unit:In canisters of 25 kg each
Usage and concentration
100 % extraction of a drill core in sandy, unconsolidated soils; sand, unconsolidated conglomerates; unconsolidated fine, middle, and coarse grained sandstones; powdery shale.
GS 550 1–2 kg/m³ water
Hard, brittle formations (core drilling or not):
GS 550 0.2–1.5 kg/m³ water
Clayey formations (core drilling or not):
GS 550 0.1–0.4 kg/m³ water
Drilling mud loss:
GS 550 1–4 kg/m³ water
+ Bentonite 3–10 kg/m³ water
Drawing of tubes in unconsolidated formations (sand):
GS 550 0.5–1 kg/m³ water
Blending with bentonite:
GS 550 0.2–1 kg/m³ water
Drawing of tubes in clayey formations:
GS 550 0.1 kg/m³ water
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
114Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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DRILLING FLUIDS
STÜWA-CLEANApplication:STÜWA-CLEAN serves as mud-breaker for the removal of drilling fluid residues in the borehole.
It is a specially developed bentonite mud-breaker, which can be used for the construction of horizontal-/vertical spring wells and drainages.
By means of the horizontal and vertical fluid drilling process, filter screens are inserted into sand and gravel beds. In order to ensure the stability of the borehole in such formations, the use of drilling fluids containing bentonite is advisable. However, the problem is that the productivity of the well may be heavily decreased by the remaining bentonite residues.
This effect can be prevented if the mud-breaker STÜWA-CLEAN is used after application of the one-component drilling fluid STÜWAMIX®.
STÜWA-CLEAN acts as mud breaker by removing the electrostatic state of stress between the bentonite platelets. Thus the gel-forming “house of cards” structure of STÜWAMIX® is destroyed.
By insertion of a STÜWA-CLEAN solution of 5 % concentration for vertical wells 10 % concentration for horizontal wells
through a high-pressure jetting-system, the pore spaces of the natural grain fractions are flushed. In order to reach further areas of the aquifer behind the screen, the STÜWA-CLEAN water mixture, which is to be injected per borehole, should amount to:
at least 10 % for vertical wells at least 25 % for horizontal wells.
The reaction time is approx. 60 minutes for fresh drilling fluids. Afterwards, a rinsing process is to be effected by using the high-pressure jetting system so as to completely remove the residues of the drilling fluid as well as that of the mud-breaker. It is advisable to carry out this rinsing process section by section in-between packer units. It is imperative to carry out disinfection process prior to initial operation of the well.
Technical data
Example vertical wellScreen diameter [mm] 400
Drilling diameter [mm] 750
Screen length [m] 13
Borehole volume [m³] 5.8
STÜWA-CLEAN injection solution [l] 600
STÜWA-CLEAN required quantity [kg] 30
Example horizontal wellScreen diameter [mm] 110
Drilling diameter [mm] 160
Screen length [m] 100
Borehole volume [m³] 2.0
STÜWA-CLEAN injection solution [l] 500
STÜWA-CLEAN required quantity [kg] 50
Packaging unit: In buckets of 30 kg each (powdery)
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
115Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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ACTIVE BENTONITE IBECO® S
DRILLING FLUIDS
Application:IBECO® S is an activated sodium bentonite which, due to its very good rheological properties, offers universal application possibilities, especially as a mud additive for boreholes drilled in coarse-grained loose sediments (sand, gravel), as an additive for cement-bentonite grouting suspensions or as a supporting medium for diaphragm wall construction as well as for shield and pipe jacking work.
Advantages Stabilisation of the borehole wall and reduction of the
filtrate water loss by forming a filter cake Increasing the density of drilling fluids and the
hydrostatic pressure in boreholes - Formation of thixotropic suspensions with distinct gel strengths
Improvement of the discharge capacity for cuttings Reduction of the sinking of cuttings in drilling fluids Basis for the production of weighted drilling fluids Creation of a sliding film and reduction of jacket
friction during tunnelling work
Instructions for use:Thorough dispersion: e.g. with batch mixers forperipheral speeds of approx. 10 - 20 m/s.Sufficient swelling time: minimum 2 - 6 hours, optimum > 16 hours. Optional addition of polyanionic cellulose (PAC, e.g. STÜWA-FLOW) due to its clay-inhibiting effect only after sufficient swelling time of IBECO® S.
Recipe suggestions for drilling fluids (preparation recipes):Standard drilling mud (alternating layers of sand, gravel, clay): 1 m3 drinking water + 20 kg IBECO® S + 1.5 kg STÜWA-FLOW, if required 1 kg SODA LEICHT (adjustment of pH value, water hardness). Drilling mud with an increased density 1m3 of drinking water + 20 kg IBECO® S + 5 kg STÜWA-FLOW + weighting agent chalk or barite (mass according to DVGW worksheet W 116), if required 1 kg SODA LEICHT (adjustment of pH value, water hardness).
Packaging unit:In bags of 25 kg each, 40 bags / 1,000 kg on one-way pallet
Storage: Dry
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
Active-Bentonite IBECO® S (sodium bentonite)Average technical values:Water content DIN EN ISO 17892-1 [%] 10 ± 2Specific density DIN 18124 [g/cm³] 2,65Bulk density [g/L] 800 ± 50Dry screen residue on sieve 0,1 mm [%] 20 ± 5
Suspension characteristics:Dosage of bentonite
[kg/m³]30 40 50 60
Slurry density [t/m³] 1,016 1,022 1,027 1,032Filtrate water mL 12 11 10 9Liquid limit (ball) DIN 4127 Ball No. 3 5 7 9
N/m² 12,3 21,7 39 59Liquid limit, dyn. (pendulum) DIN 4127
N/m² 8,5 18,8 42 67
Liquid limit, stat. (pendulum) DIN 4127
N/m² 22 52 75 100
Marsh viscosity DIN 4127 s/L 34 37 45 60Apparent viscosity API RB 13B mPas 7 10 14 18Plastic viscosity API RB 13B mPas 4 4 5 5Bingham liquid limit API RB 13B Pa 3 5 9 14
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STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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BARIUM SULPHATE
DRILLING FLUIDS
Application:Barium sulphate serves as a weighting agent for the control of strained artesian state of aquifers.
Advantages Barium sulphate is a selected product of high quality. It can be universally used as a weighting agent with
drilling fluids. The effectiveness of barium sulphate is not influenced
by the use of other drilling fluid additives.
In respect of the homogeneous distribution of the product within the drilling fluid, the pumping ability of the drilling fluid up to a capacity of 2.4 kg/l remains ensured. Barium sulphate is a chemically inert material, its chief ingredient being barium sulphate BaSO4.
Blending recommendation:The amount required of barium sulphate is dependent on the desired weight of the drilling fluid.
Packaging unit:In sacks of 25 kg each on a non-returnable pallet
Storage:Dry
Technical Data
SpecificationColour grey to brownish powder
Bulk density [g/cm³] approx. 2.1
Density [g/cm³] 4.3 (min 4.2)
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
117Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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HERLI® RAPID TWB
REGENERATION AGENT
Application:The two-component special regenerant Herli® Rapid TWB is a combination of chemically pure acids for the chemical regeneration and cleaning of vertical and horizontal wells, pipe systems, closed and open filter systems (particularly suitable for sand, gravel and louver filters), deferrisation systems and pumps.
Advantages Herli® Rapid TWB with cleaning intensifiers FCM 1 or
FCM 2 solves all iron clogging and sintering processes. The low quantity required ensures a quick, reliable and
safe operation due to its high overall dissolving capacity.
Herli® Rapid TWB can be used with stainless steel and OBO-filters due to its special formula. However, it must neither be mixed nor processed with products contain-ing chlorine (danger of chlorine gas formation).
The included inhibitors are physiologically harmless.
Areas of application:
Wells: The amount required of Herli® Rapid TWB amounts to 15 % for a nominal width of 200 mm and 10 % for a nominal width from 200 mm, calculated of the static-water level (regarding the filter gravel only 35 % pore volume are taken into consideration). The product is suited for the use of pistons as well as for use of die heads and high-pressure methods.
Filter: The quantity required amounts to 3 % of the total volume of the filter. The quantity calculated is pumped over as a 10 % solution.
Survey Report: Inspection report about the biological degradability
(Document of Compliance according to W 130) Test report (material durability of stainless steel
and OBO-filters) Inspection report (DIN 38409-H16-2 and EPA 604,
no phenol discharge of OBO-filters).
Herli® FCM 1Application:Herli® FCM 1 interacts with Herli® Rapid TW and Herli® Rapid TWB on iron and manganese deposits, producing reducing and complexing effects.Herli® FCM 1 is a white, faintly acid powder, pure ascorbic acid according to Ph.Eur. (vitamin C).
Herli® FCM 2 Application:Herli® FCM 2 interacts with Herli® Rapid TW and Herli® Rapid TWB on organic matter such as fungi, algae, bacteria, biofilm etc. in an oxidising way. While adding FCM 2, free radicals are formed, which increase the separation force and contribute to an easier mineralisation of organic coatings.Herli® FCM 2 is a white, faintly alkaline, deoxidising odourless powder (no hydrogen peroxide).
Packaging units:In canisters of 22 kg
Storage:Container is to be always kept upright, tightly closed and stored in a cool place.
Note:The stated specifications are not binding and refer to tests under laboratory conditions with the usual metrological tolerances. The tests serve exclusively to investigate the suitability of the products with regard to the fields of application. No assurances of characteristics can be derived from the data and the user is not absolved from conducting their own tests. No liability is accepted for any damages that arise due to the lack of features and / or characteristics.
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AREOMETER
DRILLING FLUID ACCESSORIES
Application:This measuring instrument is used for the determination of the specific gravity of drilling fluids and cement slurry. The special areometer is not to be regarded as a laboratory apparatus; however, for field usage it provides the results in sufficient accuracy.
Handling is conceivably simple. A small cup with a bayonet lock is attached to the lower end of the instrument. The cup is filled with the liquid to be measured. The measurement is effected by immersion of the areometer into water.
Calibration is carried out at a water temperature of 20 °C. Nevertheless, the different density of water at various temperatures is of little importance for field usage and can be neglected.
The areometer is made of anodised aluminium. In addition, the instrument is powder-coated as protection against alkaline corrosion.
The instrument is supplied as standard in the following sizes: 0.9 to 2.5 kg/1,000 cm³.
Technical data
AreometerLength [mm] approx. 715
Diameter [mm] approx. 35
Weight [kg] approx. 0.4
Optional Accessories Stand cylinder of solid plastic
Stand cylinderLength [mm] approx. 910
Bottom plate Ø [mm] approx. 200
Cylinder Ø [mm] approx. 60
Weight [kg] approx. 2.3
Areometer (Hydrometer)
Detail
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TAPERED GLASS
DRILLING FLUID ACCESSORIES
Application:This measuring instrument is used for the determination of the sand content of liquids according to Imhoff.
Advantages Sedimentation container from SAN, crystal clear Low breakage risk Raised scale Easy cleaning of the spigot end through removable
drain screw
Technical data
Tapered glassLength [mm] approx. 475
Diameter [mm] approx. 120
Volume [ml] 1,000
Gradation 0–2 ml = 0.1 ml
2–10 ml = 0.5 ml
10–40 ml = 1.0 ml
40–100 ml = 2.0 ml
100–1,000 ml = 50.0 ml
Optional accessories Stand cylinder of solid plastic material
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STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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MARSH-HOPPER
DRILLING FLUID ACCESSORIES
Application:The STÜWA March-Hopper viscosimeter is a measuring instrument for the simple routine definition of viscosity.
The Marsh-Hopper consists of impact-resistant plastic and has an outflow nozzle with a defined diameter. The hopper viscosity in seconds is defined as the time for one litre of sample liquid discharged from a filled Marsh hopper through the outflow nozzle.
The outflow nozzle is kept shut with the finger, while the drilling fluid to be measured is filled into the Marsh-Hopper. When removing the finger from the outflow tube, please note that the time, which the drilling-fluid needs to flow out of the hopper into the measuring cup standing below, is to be measured by means of a stop watch.
Technical data
HopperLength [mm] 360
Hopper Ø [mm] 160
Capacity [cm³] 1500
Weight [kg] 0.34
Outflow nozzleInner Ø [mm] approx. 4.76
Optional accessories
Measuring cupDiameter [mm] approx. 105
Height [mm] approx. 170
Weight [kg] approx. 0.100
Marsh-Hopper + measuring cup
121Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
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DRILLING FLUID BALANCE
DRILLING FLUID ACCESSORIES
Application:The 4-scale STÜWA drilling fluid balance serves to determine the density of drilling fluids
The density is one of the most important physical measured, values which determine the properties of a drilling fluid. The drilling fluid balance is designed in such a way that the sample cup at the end of the balance arm is equilibrated by a counter-weight at the opposite end of the balance arm. In addition, a rider can be moved across the arm with a graduated scale. A level located at the balance arm ensures the exact equilibrium of the drilling fluid balance.
On the front of the scale, the specific gravity from 0.72 to 2.88 g/cm3 is shown. The balance consists of a sample container, which is covered by a lid and connected to the beam of the balance, to which the rider and the balance knife-edge plus level are attached. The compartment for calibrating weights (lead balls) with locking screw is located at the end of the beam.
Technical data
Drilling-fluid balance in transport boxLength [mm] approx. 540
Width [mm] approx. 130
Height [mm] approx. 105
Weight [kg] approx. 1.7
Drilling fluid balance
detail
122Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
Phone:Fax:E-Mail:Website:
RING HOPPERApplication:The STÜWA ring hopper is used for the simplified definition of the water ejection time.
The stainless steel ring hopper consists of a base plate and a filling hopper connected to each other by a stop dog.
A filter of special paper with a diameter of 50 mm is laid onto the base plate to perform the measurement. The ring is centrically placed on top, whose conical opening is now filled with drilling fluid. Strong evaporation and heavy water losses are to be avoided by covering with a moistened glass bowl.
Once the first drop of the drilling fluid touches the filter, the stop watch is to be activated. The time is measured now until the filter paper, which is visible outside the ring, has become completely saturated with water. The time measured in seconds is named ‘water ejection time‘.
Filter papers are always to be stored at a dry place, which is free of grease!
Technical data
HopperHopper Ø [mm] 75
Height [mm] 22
Weight [kg] 0.3
Optional accessories 100 sheets of filter paper
DRILLING FLUID ACCESSORIES
123Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
Phone:Fax:E-Mail:Website:
BAG FOR FLUSHING UTENSILSApplication:The STÜWA flushing bag contains the essential components for the determination of viscosities, densities and sand content of drilling fluids.
The measuring instruments are delivered in a shock-proof, portable plastic bag.
Contents of the bag: Drilling fluid balance Marsh hopper Measuring cup 1,000 ml Measuring jug with 1,000 ml capacity Digital stop watch Screen- and measuring cylinder
to determine the sand contents 1 pack. unit strips to measure the
degree of hardness in water (50 strips) 1 pack. unit PH-indicator sticks (100 sticks) Spray bottle
Details of bag:Plastic bag, black, with soft foam inserts on the bottom and nap foam in the lid
Measurements: inside 538 x 405 x 190 mm – outside 594 x 473 x 215 mm
Optional accessories Ring hopper 100 sheets of filter paper
DRILLING FLUID ACCESSORIES
124Subject to technical changes/errors excepted
STÜWA Konrad Stükerjürgen GmbHHemmersweg 80D - 33397 Rietberg
Phone:Fax:E-Mail:Website:
INJECTOR
DRILLING FLUID ACCESSORIES
Application:The STÜWA injector is used for clump-free blending of drilling fluid additives.
Advantages Atomising the powder into the water flow leads to an
even distribution without lumping.
Injector design:Adjustable Venturi nozzle for the blending of drilling fluid polymers (e.g. ANTISOL®) and bentonite/polymer ready-to-use mixtures (e.g. STÜWAMIX®)
Accessories: Injector Feed hopper Brass reducing-nipple Discharge hose Hose clamp 4 pcs. spacer rings
Optional accessories Foot for ramming into the soil, with fastening clamps