Pipe Conveyance Imaging Logging System
HT/HP Downhole Imaging · Wireline + Memory
High-resolution pipe-conveyance imaging for extended-reach and horizontal wells — engineered for hostile downhole conditions.
The PILS-X is a high-strength pipe-conveyance imaging logging system designed for extended-reach and horizontal wells where conventional wireline logging is not advisable or feasible. With a minimum tool-string compression strength of 500 kg, it operates safely in hostile downhole conditions with well-control risk, well pressure up to 172 MPa and temperature up to 185°C.
The O.D. of 3.78 in. [96 mm] and tensile / compressive strength up to 20 t make PILS-X suitable for highly deviated and horizontal sections. Two operation modes — SRO (surface readout) with wireline and battery-powered memory — provide measurement quality comparable to conventional tools, with a fishable radioactive-source design that mitigates lost-in-hole risk.
Primary downhole tools and string components of the PILS-X system.
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| Tool | Range of measurement | Accuracy | Vertical Resolution |
Depth of Investigation |
|---|---|---|---|---|
| xCU-A | SP: −1300 ~ +1300 mV Dev: 0 ~ 150° AZ: 0 ~ 360° |
DEV: ±0.2°, AZ: ±3°, Dev>5° ±10°, 1°<Dev<5° |
— | — |
| xTTRP-A | Tension: −45,000 ~ +45,000 lbs Temp: −55°C [−67°F] to +245°C [473°F] Rm: 0.01 ~ 10 Ω·m Pressure: 0 ~ 172 MPa |
Tension: ±100 lbs Temp: 0.12°C Rm: 0.00244 Ω·m Pressure: ±0.25% FS |
— | — |
| xGS-A | GR: 2500 API K: 100% U: 250 ppm Th: 700 ppm |
GR: ±3% K: ±4% U: ±4% Th: ±4% |
15 in | 7.8 ~ 12 in |
| xCAL4-A | 150 ~ 400 mm [5.9 ~ 15.75 in] | ±5% | — | — |
| xDAL-A | 128 ~ 650 μs/m | P: 128 ~ 200 μs/m ±5 μs/m S: 200 ~ 650 μs/m ±1% |
152.4 mm [0.5 ft] |
— |
| xDLL-A | 0.2 ~ 40,000 Ω·m | For homogeneous formation 0.2 ~ 1 Ω·m: ±20% or ±0.06 Ω·m 1 ~ 2000 Ω·m: ±5% 2000 ~ 5000 Ω·m: ±10% 5000 ~ 40,000 Ω·m: ±20% or ±0.025 mS/m |
600 mm [23.6 in] |
LLS: 800 mm LLD: 2700 mm |
| xXDA-A | Monopole: 40 ~ 300 μs/ft Dipole: 80 ~ 1000 μs/ft Quadrupole: 80 ~ 1000 μs/ft Stoneley: 180 ~ 600 μs/ft |
— | — | — |
| xAIT-A | 0.1 ~ 2000 Ω·m | For homogeneous formation 60 / 90 / 120 in: ±1 mS/m or ±2% of reading 30 in: ±2 mS/m or ±2% of reading 20 in: ±4 mS/m or ±2% of reading 10 in: ±10 mS/m or ±2% of reading |
0.305 m [1.0 ft], 0.61 m [2.0 ft], 1.22 m [4.0 ft] |
0.254 m [10 in], 0.508 m [20 in], 0.762 m [30 in], 1.524 m [60 in], 2.286 m [90 in], 3.048 m [120 in] |
| xCN-A | 0.1 ~ 85 Limestone Porosity Units [p.u.] | <±1 p.u., 0.1 ~ 10 p.u. <±10%, 10 ~ 45 p.u. ±10 p.u., > 45 p.u. |
711.2 mm [28 in] |
7.8 ~ 12 in |
| xZD-A | 1.3 ~ 3.0 g/cc | Standard Logging Speed DEN: ±0.025 g/cc [2 ~ 3.0 g/cc] Pe: ±0.2 b/e [1.3 ~ 6.0 b/e] |
482.6 mm [19 in] |
7.8 ~ 8 in |
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| xCU-A | xTTRP-A | xGS-A | xCAL4-A | xDAL-A | xDLL-A | xXDA-A | xAIT-A | xCN-A | xZD-A | |
|---|---|---|---|---|---|---|---|---|---|---|
| Temperature Rating | 185°C [365°F] | |||||||||
| Pressure Rating | 172 MPa [25,000 psi] | |||||||||
| Borehole size — min | 139.73 mm [5.5 in] | 139.73 mm [5.5 in] | 139.73 mm [5.5 in] | 150 mm [5.9 in] | 139.73 mm [5.5 in] | 139.73 mm [5.5 in] | 139.73 mm [5.5 in] | 114.3 mm [4.5 in] | 114.3 mm [4.5 in] | 139.73 mm [5.5 in] |
| Borehole size — max | 609.6 mm [24 in] | 609.6 mm [24 in] | — | 400 mm [15.75 in] | 241.3 mm [9.5 in] | 609.6 mm [24 in] | 450 mm [17.72 in] | 508 mm [20 in] | 609.6 mm [24 in] | 558.8 mm [22 in] |
| O.D. | Ø96 mm [3.78 in] | Ø96 mm [3.78 in] | Ø105 mm [4.134 in] | Ø100 mm [3.937 in] | Ø100 mm [3.937 in] | Ø96 mm [3.78 in] | Ø102 mm [4.016 in] | Ø98 mm [3.858 in] | Ø96 mm [3.78 in] | Ø122 mm [4.803 in] |
| Length | 2123 mm [6.97 ft] | 1299 mm [4.26 ft] | 2383 mm [7.82 ft] | 2314 mm [7.59 ft] | 4027 mm [13.21 ft] | 4507 mm [14.79 ft] | 9070 mm [29.76 ft] | 5400 mm [17.72 ft] | 2110 mm [6.92 ft] | 2610 mm [8.56 ft] |
| All dimensions nominal. Specifications subject to update without notice. | ||||||||||