Drilling Mud Detergent

Description :
LIQUIDET DRS is a concentrated Liquid blend of several highly active formulated chemicals which is used as a drilling mud detergent. The product finds application in all water based drilling fluid systems. LIQUIDET DRS reduces the surface tension and it is a powerful wetting agent. The reduction in surface tension promotes the setting of the mud pH and reduced the balling of shale cutting resulting in increase in the penetration rate. LIQUIDET DRS acts as a good emulsifier and lowers the torque and drag.

Specification :

Scale Inhibitor II

Description :
Sea water has an average salt content of 3.5%. in addition t these, sea water contains about 65 ppm bromine, 13 ppm strontium and trace amount of many other elements. The alinity differences are found to exist between oceans, but the proportion of dissolved constituents remains approxiamately same. Sea water is frequently needed by the tide water plant for cooling water and as a source of water for water flood projects.

Strontium sulfate scale has not received the attention that gypsum or barite scales have but in some areas, celestite may be a major problem. Strontium , this alkaline earth metal forms a sparingly soluble compound with sulfate solubility of stantium sulfate in water is 114 mg/lit at 25ºC. this is less than calcium sulfate which is 2630 mg/ht. expressed as CaSO4 , 2H2O and more than barium sulfate which has solubility of 2.3 mg/lit.

Therefore it is very necessary to take care of strontium sulfate scale in its scale prevention programme.

Specification :

Physical requirement : will be free flowing liquid at ambient temperature(18 - 30 ºC) free from foreign matter.

Miscibility with sea water : will be completely miscible and compatible with sea water and formation water.

Compatibility Test : will pass compatibility test when used in combination withother water flood chemicals such as polyelectrolytes, defoamers,oxugen scavengers,corrosion inhibitors and bactericides.

Performance Test :
Calcium carbonate scale : when two incompatible solution a & b (compositions given below) containing scaling ions are mixed in presence of 10 mg/litre of scaled inhibitor and placed for 18 hrs. at 65ºC, percentage scale inhibition should be 98% min.
Strontium sulphate scale : When two incompatible solutions a & b (composition given below) containing scaling ions, are mixed in presence of 10 mg/litre of scale inhibitor, placed for 18 hrs. at 65 ºC , the percentage scale inhibition will be 98% (min) for strontium sulfate incompatible solutions.

Packing : lacquer coated M.S.Drums, capacity 55 gallons each drum.

Acid Corrosion Inhibitor

Description :
Acids are generally used in oil and gas wells to stimulate the Oil or Gas flow from the well and to remove incrustations in the wells. Acids , preferentially, hydrochloricn acid is are forced under high pressure through the hole into the rock formation to produce fracture around the hole. About 10 -15 % of hydrochloric acid is generally used for producing fracture. When the deposit is calcareous. When such a large quantity of hydrochloric acid is used, it is needless to say that well equipment should be protected from corrosion by use of inhibitor. Acid corrosion inhibitor formulated by Deltamike is an acid corrosion inhibitor which is stable upto 120ºC.

Specification :
Chemical Composition :It is a mixture of organic alophatic.
Physical Properties :
» Colour : Dark Blue.
» Odour : Ammoniacal odour.
» Specific Gravity : 1.06 - 1.08

Solubility : Soluble by forming some haziness in 15% HCl.

Qualitative Test : Should be negative for presence of Arsenic.

Pour Point,ºC : 12.0 (Max).

Corrosion Test :
» Pressure , PSI : 1000
» Test temperature, ºC : 120 ± 2 ºC
» Condition of test : Static
» Duration of test, hours. : 6
» Acid volume/test coupon : 75 surface area, ml/sq/inch.
» Type of Steel : N - 80
» Type of Acid : Hydrochloric Acid (15% w/w)
» Conc. Of Inhibitor, ml/lit. : 30
» Corrosion rate without pitting : 0.224 gm/cm² (Max).

Handling & Precautions :Highly alkaline use gloves,nose mask and goggles while handling. At the time of dosing Acid Corrosion Inhibitor to HCl , may produce white fumes of ammonium chloride which are harmless. It is advisable to dilute acid corrosion inhibitor first with water & then pump hydrochloric acid into it.

Oil Line Corrosion Inhibitor

Description :
In the oil well drilling, pipelines and flowlines are often found to take in problem of severe corrosion. If the flow velocity is less than required for turbulent flow, liquids will not contact top area. In mot cases free liquid moves along the bottom of pipe. Depending upon velocity the layer may be both condensate and water or as discrete layers of oil and water

To protect the pipelines from the corrosion, " CORONIL - OL" is been formulated to provide a tough film.

Specification :
Chemical Composition :It is composition of organic specified amines with dispersant.
Specification :
» Colour : Light yellow to Dark brown viscous liquid.
» Specific Gravity : 1.00 - 1.05
» Solubility : Soluble in water,sea water & formatiom water in Proportion.
» Toxicity : Low.

Physical State : The material, will be free flowing, homogenous liquid free from visible impurities and suspended solids.

Compatibility & Emulsification Test : The material will be compatible with crude oil * mix(140 ml. of crude oil with 60 ml of AR grade Xylene and brine corrodant, shall not form anemulsion at 24 +/- 2^ C Iinterface sludge pad thickness will not be more thn 5% after five hrs.

Stability Test : The material shall be heated in a well sealed glass stoppered measuring cylinder at 80 +/ - 2^C, for 2 hrs. in lab. Oven. Neither precipitation nor heterogenous layers shall be observed, on cooling at ambient temperature and mixing after one hour.

Test Conditions :
» Corrodant Media :

» Metal Coupons : The coupons shall be of API 5L - Gd Bsteel with approx, size of 30x25x3 - 4mm of thickness (total surface area of all sides taken together shall be around 18 +/- 2 cm.sq.). The surface finish shall be to 300 emery grit,free pits & scratches.
» Test Temperature : 50 +/-2^C
» Corrosion Inhibitor Dose : 35 ppm(W/V)
» Exposure Period :

» Test results : 80 % (min) for static and dynamic test with coupons free from pits, scratches on visual inspection.

Handling & Precautions :Safe to handle. Do not take internally.

Gas Line Corrosion Inhibitor (H₂S)

Description :
CORONIL 35 is an Oil soluble water dispersible semipolar organic inhibitor,which is very effective for sweet (CO2) or Sour (H2S) gas condensate wells and sweet and sour oil wells.

Specification :
Physical State :The material is a free flowing homogenous liquid, free from visible impurities and suspended solids.

Compatibility & Emulsification Tendency :The material is compatible with untreated crude oil mix (prepared by mixing 140ml. of crude oil with 60 ml. of AR Grade Xylene) and brine corrodent, shall not form emulsion at 24 ± 2ºC. The interface sludge pad thickness, will not be more than 5% after 5 hours.

Stability :The material will be heated in a well sealed glass stoppered measuring sylinder at 120 ± 2ºC for 2 hours. In a laboratory oven. Neither precipitation nor heterogenous layers will be observed , on cooling to ambient temperature and mixing after one hour.

Performance Test : Dynamic condition (Wheel Test)

» Corrodent Media : :

» Metal Coupons : N -80 steel coupons of sizes 25mm x 25mm x 3 to 4 mm (thickness) approx. and polished to 300 emery grift, free from pits and scratched, (total surface area of all sides taken together shall be 15 ± 1 sq.cm of the coupon).
» Test Temperature : 50 ± 2ºC.
» Corrosion Inhibitor Dose (W/V) ppm : 200
» Exposure Period : 24 hrs.
» Results Required :

Packing : 180 KGSHDPE sea - worthy barrels.

Handling & Precautions : Store away from direct heat. Avoid continous breathing of vapours. Use gloves & goggles while handling the chemical. In case of accidental spillage wash the surface with plenty of fresh water.

Water Injection Corrosion Inhibitor (WIN)

Description :
Large quantities of water is been used in the Oil fields for flooding. This water normally contain about 3 - 3.2%. Sodium Chloride because of which water becomes highly corrosive. To prevent this corrosion " CORONIL 505" can be used.

Physical State :A clear free flowing homogenous liquid at ambient temperature (24 ± 2°C), free from foreign matter.

Miscibility with Sea Water : Will be completely miscible in and compatible with Seaand formation water.

Compatibility Test :Should pass compatibility test when in combination with other water food chemicals such as polyelectrolytes, defoamers, oxygen scavengers, scale inhibitors and bactericides.

Stability Test : Stable upto 90 ± 5 °C.

Viscosity of Neat Corrosion Inhibitor :Viscosity of product will not be more than 200 Cps at 300 rpm at ambient temperature 24 ± 1 °C with fan v.g. meter.

Corrosivity of Neat Product :Corrosivity of neat product will not be more than 1.0 mpy with API steel material at ambient temperature under openn conditions when exposed for 7 days.

Performance Test :

Spotting Fluid (Weighted)

Description :
In the process of drilling, the drill string becomes differentially stuck, then there are only three options remaining to free it.

Specification
Physical State :The material as received , shall be a free flowing liquid at ambeint temperature, free from visible impurities.

Mud Lubricity Coefficient : The lubricity coefficient shall not be more than 0.25

Reduction In Interfacial Tension :
    a) Determine interfacial tension of HSD and water at room tempaerature.
    b) Now seperately add 2.5% (w/v) spotting fluid to HSD and mix well , determine interfacial tension of HSD (containing spotting fluid     and water again). The interfacial tension in (b) shall be reduced compared to (a) by 50% (Min).


Stability Test :
» Thermal Stability : Prepare a spotting fluid slug by adding 78 ml. spotting fluid sample to 510 ml HSD & stirring with Hamilon beach mixer for 10 min. at high speed. To this add 110 ml. distilled water followed by 15 gm. Lime powder slowly while stirring and continue stirring for 1 hour after addition is complete (stirring should be interrupted after every 20 minutes and stirrer should be allowed to cool for 10 minutes. This process should be repeated three times.). Load with barytes to sp. Gravity 1.90 - 1.92. Again stir with Hamiton Beach Mixer for 1 hour in the manner described above. Determine apparent viscosity, plastic viscosity, yeild point, Gelo and Gel 10 of the suspension. Hot roll one portion of above suspension at 100°C for 4 hrs. Cool and again determine apparent viscosity, plastic viscosity, yeild point, Gelo and Gel 10. Variation in the value of above mentioned prperties , after hot rolling, compared to before hot rolling shall be ± 20% (maximum).
» Weight Stability : Place 500 ml. portion of the weighted spotting fluid slug prepared above (before hot rolling) in a cylinder having two drain valves, one near the top and the other near bottom. Keep the cylinder unditurbed for 2 hrs. Draw samples from top and bottom and determine their resopective specific gravity. Difference in the two specific gravity should not be more than 0.02.

Filter Cake Cracking Test : Prepare prehydrated bentonite suspension (using ONGC approved bentonite) & dilute with distilled water to obtain suspension of 15 cp ap0parent viscosity. Obtain a filter cake of this mud in the API filter press by carrying out filtration for 30 min at 100 psi pressure. Throw the mud away, wash the mud cake with slow stream of water (without removing the mud cake from the cell) and fill the cell with 100 ml. HSD oil containing 2.5%(w/v) spotting fluid. Close the cell and apply 100 psi pressure for 2 hrs. Release pressure , throw out the HSD solution observe cracking pattern on the mud cake. It should develop extensive crack.

Stickness Test : Prepare 15 cp. Bentonite suspension, as in the case of filter cake cracking test. Load it with barytes to sp. Gr. 1.20 . From a filter cake by applying 500 psi pressure for 30 min. in the modified Bariod Stickness Tester. Stick the plate by pressing it on the cake for 5 minutes and leave for 1 hr. under 500 psi pressure. Then release the pressure ,open bottom & top stoppers & with fill the cell with 100 ml. of HSD oil containing 2.5% (w/v) of the sample of spotting fluid. Close the top stopper and again apply 500 psi pressure. Note the time for release of stuck plate and if not released in 20 minutes, apply torque with torque wrench. The plate should be released by applying torque, of less than 75 inch - pounds.

Packing : Should be packed in leak proof, sealed M.S.drums, strong enough to withstand rigors of transit and storage , capacity 200 litres per drum.