Chemical injection is the process to assist in producing oil where various chemicals are injected into the crude oil. Specifically, this provides a degree of protection or enhances the wellhead output. Flow meters are used to monitor and control the number of chemicals added to the wellhead. Moreover, Hoffer turbine flow meters can be found worldwide on both land-based and subsea flow meter applications providing high accuracy and robust meter solutions to customers. Furthermore, many of these flow meter applications are high pressure in nature.

Hoffer offers turbine flow meters with autoclave end connections, SAE Code 62 flanged connections, and Grayloc connections for these applications. Meter designs are available for 20,000 PSI internal pressure and external pressure up to 5,000 PSI. Flow range capability ranges from .0625 to 2,000 GPM. We have supplied subsea flow meters with 6” Tec-Loc end connections and 5” flow meter internals for a subsea flow application in drillship Pacific Santa Ana. Those flow meters were fabricated from exotic metals and are used on seawater service.

Other common flow applications for chemical injection include liquid methanol to prevent hydrate formation, various inhibitors, and a wide variety of chemicals.

Flowmeter turndown range is typically significant for these applications. Hoffer can offer turndown ranges up to 100:1 using certain design features on the meter, including low friction bearings and modulated carrier pickup coils. We offer these meters with conditioned pulse outputs, analog outputs, and RS-485.