The Casing Scraper is a downhole tool used to clean the inner wall of the casing before cementing or other completion operations. It removes mud, scale, debris, and other deposits to ensure optimal cement bonding and well integrity.
The Casing Scraper is a downhole tool used to clean the inner wall of the casing before cementing or other completion operations. It removes mud, scale, debris, and other deposits to ensure optimal cement bonding and well integrity.
Key Functions：
Casing Cleaning: Scrapes mud, cement residue, and debris from the casing interior
Cementing Quality: Ensures uniform contact between cement and casing, preventing channeling or voids
Well Integrity: Promotes a strong, reliable cement sheath for long-term stability
Types：
Standard Casing Scraper
Non-Rotating Casing Scraper
Custom designs for specific casing sizes or well conditions
Specifications：
Casing Size (O.D.): 4-1/2″ to 20″ (114 – 508 mm) or custom sizes
Material: High-strength alloy steel, wear-resistant for long service life
Thread Type: BTC, LTC, STC, or customized per client requirements
Key Advantages：
Efficient removal of debris and mud from casing walls
Reduces risk of poor cement bonding
Durable for high-pressure, high-temperature (HPHT) conditions
Compatible with a wide range of casing diameters and cementing operations
Applications：
Onshore and offshore drilling
Oil, gas, and geothermal wells
Cementing operations requiring clean casing walls
Workover and well intervention activities
|
Type |
Casing ID Range (mm) |
Connection |
Overall Length (mm) |
Blade Length (mm) |
No. of Blades |
|
GX 4-1/2 |
92–112 |
2-3/8 REG |
895 |
25 |
2×3 |
|
GX 5 |
95–118 |
NC26 |
895 |
25 |
2×3 |
|
GX 5-1/2 |
110–133 |
2-7/8 REG |
1010 |
32 |
2×3 |
|
GX 6-5/8 |
136–162 |
3-1/2 REG |
1010 |
32 |
2×3 |
|
GX 7 |
142–168 |
3-1/2 REG |
1010 |
32 |
2×3 |
|
GX 8-5/8 |
177–195 |
3-1/2 REG |
1200 |
38.1 |
2×3 |
|
GX 9-5/8 |
209–235 |
4-1/2 REG |
1212 |
57 |
2×5 |
|
GX 10-3/4 |
260–284 |
6-5/8 REG |
1500 |
57 |
2×5 |
|
GX 13-3/8 |
290–330 |
6-5/8 REG |
1372 |
71 |
2×7 |
