SK-CTF Compensated Resistivity Meter
The SK-CTF compensated resistivity meter is compatible with the Tensor standard LWD. It uses the industry standard four-transmitter and two-receiver, symmetrically compensated transmitter and receiver design to provide eight compensated resistivity curves at different detection depths. These curves can be arbitrarily combined and transmitted in real time to achieve geosteering applications.
Product Features
Strictly adopt the temperature rise precision drift control technology of electrical devices, and use advanced algorithms to achieve accurate resistivity measurement values
Both the upper hanging MWD and the lower key MWD tool strings can be flexibly connected, and the connection method is an upgraded and improved wet connection or hard connection method. The connector can also be customized according to customer needs
400KHz deep measurement: Measure from two antenna spacings of 19 inches and 41 inches. 400KHz deep measurement is more conducive to geological guidance applications, combined with 2MHz shallow measurement resistivity
Data, it can detect oil layer boundaries
2 MHz high vertical resolution measurement: Use 2 MHz high frequency measurement to achieve excellent vertical resolution and identify thin layers
Widely used in more than a dozen countries and regions, with reliable and mature performance
Dozens of process and design upgrades, strong adaptability to high temperature and high vibration conditions, and greatly improved reliability
Can be customized with azimuth gamma, azimuth resistivity, near-bit, rotary guidance, etc.
150℃/175℃
Maximum Operating Temperature
20,000 Psi
Maximum working pressure
2 MHz
High vertical resolution measurement
| Sensor Characteristics | ||||
| interval | frequency | range | Accuracy | |
| Phase Difference | 41 in. | 2 MHz | 0.1 to 2,000 ohm-m | ± 2% (0.1 to 20 ohm-m) ± 1 mmho/m (>20 ohm-m |
| 400 kHz | 0.1 to 500 ohm-m | ± 2% (0.1 to 10 ohm-m) ± 2 mmho/m (>10 ohm-m) | ||
| 19 in. | 2 MHz | 0.1 to 1,000 ohm-m | ± 1% (0.1 to 10 ohm-m) ± 1 mmho/m (>10 ohm-m) | |
| 400 kHz | 0.1 to 250 ohm-m | ± 3% (0.1 to 5 ohm-m) ± 6 mmho/m (>5 ohm-m) | ||
| Amplitude Ratio | 41 in. | 2 MHz | 0.1 to 50 ohm-m | ± 5% (0.1 to 16 ohm-m) ± 3 mmho/m (>16 ohm-m) |
| 400 kHz | 0.1 to 10 ohm-m | ± 3% (0.1 to 3 ohm-m) ± 10 mmho/m (>3 ohm-m). | ||
| 19 in | 2 MHz | 0.1 to 50 ohm-m | ± 5% (0.1 to 8 ohm-m) ± 6 mmho/m (>8 ohm-m) | |
| 400 kHz | 0.1 to 10 ohm-m | ± 5% (0.1 to 3 ohm-m) ± 15 mmho/m (>3 ohm-m) | ||
| Vertical resolution 6 in. (less than 10ohmde conductive layer) | ||||
| Mechanical Specifications | |||
| 4.75 in | 6.91 in | 8.25 in. | |
| Tool outer diameter | Antenna 5.0″, Wear Strip 5.25″ | Antenna 6.91″, wear-resistant belt 7.16″ | Antenna 8.25″, wear-resistant belt 8.5″ |
| length | 14.5 ft (174 in.) | 14.5 ft (174 in.) | 15.16 ft (182 in.) |
| Tool connection | 31/2in. IF (NC-38) | 41/2in. IF (NC-50) | 65/8in. API Reg |
| Equivalent stiffness | 5.00 in. x 2.81 in. | 6.58 in. x 2.81 in. | 8.25 in. x 2.81 in. |
| Makeup torque | 9,600 lbf-ft | 30,000 lbf-ft | 54,000 lbf-ft |
| Working displacement | 100 - 350 usgpm | 300 - 750 usgpm | 450 - 1200 usgpm |
| Maximum dogleg rotation | 12.2º/100 ft | 8º/100 ft | 7º/100 ft |
| Maximum dogleg sliding | 25º/100 ft | 17º/100 ft | 14º/100 ft |
| Maximum operating temperature | 150℃/175ºC | ||
| Maximum temperature tolerance | 160℃/185ºC | ||
| Maximum working pressure | 20,000 Psi | ||
| Recommended sand content | ≤1% | ||
| Maximum plugging material content | 40-50lb/bbl evenly mixed | ||
CONTACT US
Address: Building A, Legu Tower, Hongqi Road, Nankai District, Tianjin, PRC.
Tel: 0086-022-25255688
Email: sales@wintrust-geologging.com
Whatsapp: +86-15010461677