Ellison Fluid Calipers
Oil and GasTexas, United States2-10 Employees
Ellison Fluid Calipers is a small oilfield instrumentation company based in Allen, Texas. It traces its origins to 1980, when Chuck Ellison founded the business in Odessa, Texas; he holds a Master of Science in Geology/Geophysics and brings more than four decades of oilfield experience along with extensive work in fluid dynamics. The core technology, the fluid caliper, was refined by cross-analyzing multiple factors affecting readings, including hole size, pump volume, fluid viscosity and density, rotary speed, and hole load. The company has conducted tens of thousands of fluid caliper measurements and serves a client base that includes more than 250 oil companies, spanning majors and independents. In the oil and gas industry, Ellison Fluid Calipers occupies a specialty niche as a provider of precision measurement instrumentation for wellbore assessment. With a small team, it supports a broad, industry-wide client base across both major and independent operators, reflecting a long-standing emphasis on combining geological and fluid-dynamic expertise with its measurement technology.