Reliable Connectors for LWD Can Acquire Accurate Petrophysical Data While Drilling

Sunkye's Customized HTHP Connectors provide an ideal solution for the petroleum industry, with high durability, reliability in extreme environments.
Oil and gas drilling applications and environments are highly demanding and sensitive. It is essential to ensure accurate and reliable measurements every time, optimize drilling operations, reduce downtime, and maximize productivity. To achieve this, sealed units, sensors with abrasive and corrosive media, and durable performance are particularly important.

During the drilling process, data collection by downhole instruments and surface systems is closely tied to sensors, and reliable signal transmission is critical. Connectors that connect the circuits of the entire system play a vital role in this. Similarly, connectors are indispensable key equipment in logging while drilling and shorten the connection distance of each logging well, improving measurement accuracy.

High-temperature connectors that match various instruments, such as measurement while drilling, logging while drilling, and rotary steering, can effectively solve the technical problems faced by various logging instruments.

Sunkye specializes in providing customized HTHP Connectors for the petroleum industry. These connectors are designed to support high voltage rating, high performance of high density, light, highly reliable, and have an air leakage rate of 1x10-3Pa.cm3/s.

Sunkye provides reliable materials for customized Connectors such as PEEK, high-temperature alloy, fluororubber, ceramic, glass sintering, etc., for the shell, contact, and insulator.

PEEK has a high melting point compared to other thermoplastics. A PEEK connector is made from PEEK material combined with a metal contact and uses glass sintered technology to seal the PEEK material & contact. PEEK connectors can withstand harsh conditions, with a pressure of 30,000PSI /207Mpa and an extreme temperature of 300℃.

Kovar, Alloy 52 shell, glass sintering with alloy contact application in high-temperature high-pressure environments. Glass-to-metal seal is a fusion bonding technique for hermetic sealing, which provides high output current and electrical signal propagation efficiency for petrol industry equipment.

Sunkye’s HTHP connector performance:


Test Results

Random vibration

10Hz-2000Hz, 0.3G2 /Hz, acceleration 20G, 200℃ .4h on direction X, Y, Z.


490m2 /s, 11ms

Dielectric withstanding voltage

1000VDC, 60s, leak current≤ 5mA

Normal temperature insulate resistance

≥5000MΩ (500VDC, normal-tem.)

High temperature insulate resistance

≥500MΩ (500VDC, 200℃ )

Rated current

1A continuous current

Temperature range

-55℃ to +200℃

Operating pressure

0 MPa to 172.5 MPa

High temperature life

200℃ ,600h

Temperature shock

-55℃ to +200℃ , 15 cycles, the temperature switching time is ≤ 15 min

Salt spray


Air leak

helium leak test ≤ 1×10-3Pa.cm3 /s

High temperature high pressure

172.5MPa, 200℃ , 336h

Sunkye Connection Technologies provides a wide product portfolio with a complete interconnect solutions offering. Sunkye connectors and cables assemblies are complementary with Sunkye backshells and conduits.