The economics behind geosteering or high-cost drilling can cost-justify using logging-while-drilling (LWD) sensors to acquire data in real time. Halliburton uses LWD sensors to help direct high-angle and horizontal drilling, and to ensure efficient use of expensive rig time.
Sperry Drilling services leads the industry with the largest and most robust high pressure, high temperature offering, and invests in significant research and development in HP/HT technology. In HP or HT wells, equipment is required to withstand temperatures higher than 300°F/149°C and pressures above 18,000 psi/124 MPas. Today, the majority of Sperry Drilling's measurement/logging-while-drilling (M/LWD) tools are rated to 347°F/175°C and 25,000 psi/172 MPas.
Sperry now offers ExtremeHT-200™ M/LWD sensors (392°F/200°C and 20,000 psi/138 MPas) and UltraHT-230™ M/LWD sensors (446°F/230°C and 30,000 psi/207 MPas), making it possible to operate reliably at higher temperatures than ever before and gaining access to reservoirs that were previously uneconomical.