Super Seal Blended —— GT-N
GT-N is a LCM to be added into drilling or completion fluids for curing loss or increase formation bearing pressure. It is manufactured of specialized flake, granular, and fibrous materials of controlled length, giving proper size distribution which make it considerably more effective than using only single type of LCM.
GT-N is functional in both water and invert emulsion drilling fluids systems with minimal effects on fluid properties. It can be mixed directly to the active system or used in conjunction with other LCM materials in high concentration pills depending on the severity of the lost circulation incident.
GT-N has three kinds of specifications:
Super Seal Blended LCM Fine | Super Seal Blended LCM Medium | Super Seal Blended LCM Coarse |
GT-N (F) | GT-N (M) | GT-N (C) |
Properties
Appearance | Blend of flake, fibrous and granular particles |
Specific Gravity | 1.3~1.5 |
Bulk Density | 37~50pcf |
pH(1% solution) | 7~9 |
Solubility in water | Insoluble |
Temperature Stability | >302°F (150℃) |
Features & Benefits
▲ Contains optimized materials with a range of particle sizes and shapes to cure losses more effectively
▲ No need to be blended with other LCM to be effective
▲ Adding and mixing operation can be simply and easily conducted on location
▲ Chemically inert that does not affect mud performance
▲ No special equipment is needed
Applications
Usage Recommendation
Size of void spaces or channels(microns) | Degree of loss | Concentration of LCM (lbs/bbl) |
<1000 | Seepage loss or partial loss | 2~12 |
1000~3000 | Partial loss or severe loss | 30~60 |
3000~5000 | Severe loss or total loss | 40~80 |
Soluble Super SeaI Blended —— GT-S
GT-S is a LCM to be added into drilling or completion fluids for curing losses or increase formation bearing pressure. It is manufactured of specialized flake, granular, and fibrous materials of controlled length, giving proper size distribution which make it considerably more effective than using only single type of LCM. More than 92% acid solubility of this product makes it suitable for reservoir sections where remedial acid treatments may be desired.
GT-S is functional in both water and invert emulsion drilling fluids systems with minimal effects on fluid properties. It can be mixed directly to the active system or used in conjunction with other LCM materials in high concentration pills depending on the severity of the lost circulation incident.
GT-S has three kinds of specifications:
GT-S Fine | GT-S Medium | GT-S Coarse |
GT-S (F) | GT-S (M) | GT-S (C) |
Properties
Appearance | Blend of flake, fibrous and granular particles |
Specific Gravity | 1.9-2.4 |
Bulk Density | 56-75 pcf |
Solubility in 15% HCL | 9.2% |
pH (1% solution) | 7-9 |
Solubility in water | Insoluble |
Temperature Stability | >392°F (200°C) |
Features
▲ Contains optimized materials with a range of particle sizes and shapes to cure losses more effectively
▲ No need to be blended with other LCM to be effective
▲ Adding and mixing operation can be simply and easily conducted on location
▲ Chemically inert that does not affect mud performance
▲ No special equipment needed
▲ Compatible with all types of mud systems
▲ Suitable for reservoir section
Applications
Usage Recommendation
Size of void spaces or channels (microns) | Degree of loss | Concentration of LCM (LBS/bbl) |
<1000 | Seep loss or partial | 2-12 |
1000-3000 | Partial loss or severe loss | 30-60 |
3000-5000 | Severe loss or total loss | 40-80 |
Neotor® High Pressure Bearing LCM —— NTS-M
NTS-M is a LCM mixture with unique properties and is dominated with flake shaped particles that are manufactured with special process. It inserts material with high temperature & pressure resistance. From pressure squeezed, grain shaped bridging particles enter fractures deeply to establish bridges in order to increase near wellbore stress. This also provides channels for different shaped plugging materials to fill and compact under pressure to form a high pressure resistant plug.
Properties
Physical Status | Hard & Thermosets |
Specific Gravity Chemical Properties | 1.3 - 1.56 Inert for weak acid and alkaline |
Appearance and Odor | Flake particles with no odor |
Thermostability | 500℉ (260°C) |
Pressure Resistance | 2030psi |
Solubility | Insoluble to OBM. WBM, and brine. Max. acid solubility 21.5% |
Advantages ▲ High success rate to stop lost circulation for natural fractures, induced fractures, and irregular small caves, especially under HTHP ▲ High pressure bearing capacity compared with conventional LCM ▲ The capacity of high pressure and temperature resistance make it possible to form stable plug ▲ None contamination to drilling fluids, and it does not require special equipment for mixing |
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Applications ▲ Small and medium size fractures ▲ Induced fractures ▲ Cracks and micro fractures |
Neotor® Acid-Soluble LCM —— NTS-S
NTS-S is manufactured with special technique which has acid-soluble ability above 98%, it is more beneficial to be used for curing loss in pay zone.
Properties
Type | Size Distribution (Microns) | Fracture Width(Microns) | |
Coarse | NTS-S (C) | 3000~8000 | <8000 |
Medium | NTS-S (M) | 1000~5000 | <5000 |
Fine | NTS-S (F) | <1000 | <1000 |
Physical Status | Flake Shaped | ||
Acid-Soluble Ability | Above 98% | ||
Odor | None | ||
pH | 7-9in water | ||
Specific Gravity | 2.7-2.9 | ||
Water Solubility | Insoluble | ||
Advantages ▲ Acid-soluble ability is above 98% ▲ No contamination to drilling fluids ▲ Flake shaped materials that can easily wedge in fractures to establish bridge and would not flow back ▲ Water insoluble and will not soften and deform ▲ Can be applied to plug natural fractures and induced fractures at payzone ▲ Can form a stable plug with high pressure resistant, which can prevent secondary fracturing ▲ Compatible with all type of drilling fluids |
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Applications ▲ Acid-soluble ability is above 98% that can be applied to pay zone ▲ Cure losses caused by fractures and micro fractures | |
Neotor® Drilling Seal LCM —— NT-DS
NT-DS is composed of optimized micro particles of various types to stop loss of circulation to micro fractures and fractures. Big particles can establish bridge within fractures, small particles will fill the voids to stop losses and gas invasion. It can be applied to prevent or stop seepage losses before drilling into permeable or micro fractures formation.
Properties
Physical Status | Powder |
Chemical Property | Inert |
Color | Brown |
Odor | None |
Thermostability | 450℉ (230°C) |
Advantages ▲ Thermostability: Up to 450°F (230°C) ▲ Chemically Inert: it is compatible with both oil-based and water-based mud ▲ Environment Friendly: no odor/toxic ▲ No effect on downhole tools ▲ 1-3 percentage of NT-DS can be effective ▲ No special equipment is needed to mix |  |
Applications ▲ Increase formation strength on highly permeable formation and formation with closed natural fractures ▲ Used to plug micro fractures and small cracks (<1mm) ▲ Used to plug fractures to inhibit gas invasion | |
Neotor® Squeeze PIug LCM —— NT-T
NT-T has the property of high solid content and high water loss which can be compressed to be a plug by differential pressure (ΔP). It can be applied on fractured formation to stop loss of circulation. It is practical and efficient to prevent gas ascending during tripping operation in gas well.
Properties
Physical Status | Shape and Color | Gray Power |
Specific Gravity | 1.68-1.76 | |
pH of 2% Solution | Slightly | |
Water Solubility | None | |
Odor | 10-11 | |
Water Loss Property | Standard Time for 200ml Water Loss | 43s |
Mud Cake Thickness | 14mm | |
Note | Concentration at 50 ppb and stir for 5 minutes | |
Compatibility | Compatibility with Drilling Fluids | Good |
Contamination to Drilling Fluids | None | |
Field Applications | Through hopper or add in directly | |
Advantages ▲ Plug is formed under pressure difference that caused rapid dehydration It can isolate wellbore from HC zone to enhance operation safety at upper section ▲ A strong and tough plug is formed near wellbore that can resist scouring and high pressure ▲ Compatible with both OBM and WBM. Density can be adjusted up to 16.7 ppg ▲ Environmental friendly and no contamination to drilling fluids ▲ No effect to time and temperature up to 450°F (230°C) Applications ▲ Wells with severe lost circulation incidents ▲ Open hole remedial squeeze for lost circulation ▲ Cased hole squeeze to seal perforations or casing leaks ▲ Used to temperately plug fractures to inhibit gas invasion |
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Polymer LCM —— MudPlug
MudPlug is a water-soluble, temperature-responsive and low molecular weight polymer product. When added to water-based drilling fluid, it would produce a rubber-like ring gel structure (120 - 240mins). MudPlug strength also can be controlled by adding different treatment agents.
Properties
Characteristics | Granular |
ρ, g/cm3 | 1.05 - 1.60 |
Apparent viscosity, mPa · s | 20 - 150 |
Gelation time, min | 120 - 240 |
Applicable temperature, ℃ | 30 - 100 |
Breakthrough pressure, MPa | ≥ 8 |
Advantages ▲ It is particle free of water-based gel, environmental friendly ▲ Easy to inject into micro-fractures and porous formations ▲ Mudplug gel in formation is not easily broken under different drilling conditions ▲ Easy to be washed out of wellbore |
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Applications
CATEGORIES
CONTACT US
Phone: +86-028-83973858
Tel: +86-028-83973858
Email: sales@grandoiltech.com