Parkwalk Advisors

Oxford Flow designs, manufactures, and supplies pressure control equipment, including gas and fluid pressure regulators, water PRVs, silencers, and pilots, serving water, gas, marine, oil and gas, process, power, building services, and specialty applications. The company develops small, light, and reliable conventional valves that simplify systems and ensure continual potable water supplies while meeting standards for water quality and leakage control. It combines academic and industry expertise to develop practical, rigorously tested solutions that perform under harsh conditions, aiming to reduce total cost of ownership and environmental impact while improving reliability and energy efficiency. Based in Oxford, United Kingdom.

Silicon Microgravity is a Cambridge, United Kingdom based sensor technology company that develops microelectromechanical systems for oil and gas reservoir surveillance and other applications. Its gravity sensors deliver high-sensitivity gravity data and ultra-low-frequency seismic data from boreholes, enabling precise density measurements deep in reservoirs and real-time reservoir management. The technology originated as a Cambridge University spin-out, developed with support from BP and Innovate UK, and has broader uses in navigation and stabilization of intelligent systems across commercial, industrial, and military sectors. The company aims to improve efficiency, reduce costs, and support safety and environmental goals in hydrocarbon production.

Salunda develops robust contactless sensors for use in harsh environments. Its technology detects position and speed and measures fluid composition, enabling inline water cut and multiphase flow sensing for oil, water, and gas fractions, as well as downhole inspection tools and BHA sensors to detect wear and potential failure. The sensors scan components such as pistons, rotors and seals for wear, and can warn of imminent issues by identifying cracks, eccentric motion, orbiting, axial shift, or vibration. The system includes oilfield tooling, production and test separator level sensing in the presence of bubbles and froth, and handheld testers for detecting biofuel in diesel. The company also supplies sensor probes and electronics that measure fluid levels and monitor froth and entrained gases, with self-compensation for changing fluid characteristics and temperature. OEM components support open-bore water cut and multiphase flow applications, and the technology is suitable for intrinsic safety and offshore environments.

Oxford Flow designs, manufactures, and supplies pressure control equipment, including gas and fluid pressure regulators, water PRVs, silencers, and pilots, serving water, gas, marine, oil and gas, process, power, building services, and specialty applications. The company develops small, light, and reliable conventional valves that simplify systems and ensure continual potable water supplies while meeting standards for water quality and leakage control. It combines academic and industry expertise to develop practical, rigorously tested solutions that perform under harsh conditions, aiming to reduce total cost of ownership and environmental impact while improving reliability and energy efficiency. Based in Oxford, United Kingdom.

Salunda develops robust contactless sensors for use in harsh environments. Its technology detects position and speed and measures fluid composition, enabling inline water cut and multiphase flow sensing for oil, water, and gas fractions, as well as downhole inspection tools and BHA sensors to detect wear and potential failure. The sensors scan components such as pistons, rotors and seals for wear, and can warn of imminent issues by identifying cracks, eccentric motion, orbiting, axial shift, or vibration. The system includes oilfield tooling, production and test separator level sensing in the presence of bubbles and froth, and handheld testers for detecting biofuel in diesel. The company also supplies sensor probes and electronics that measure fluid levels and monitor froth and entrained gases, with self-compensation for changing fluid characteristics and temperature. OEM components support open-bore water cut and multiphase flow applications, and the technology is suitable for intrinsic safety and offshore environments.

Silicon Microgravity is a Cambridge, United Kingdom based sensor technology company that develops microelectromechanical systems for oil and gas reservoir surveillance and other applications. Its gravity sensors deliver high-sensitivity gravity data and ultra-low-frequency seismic data from boreholes, enabling precise density measurements deep in reservoirs and real-time reservoir management. The technology originated as a Cambridge University spin-out, developed with support from BP and Innovate UK, and has broader uses in navigation and stabilization of intelligent systems across commercial, industrial, and military sectors. The company aims to improve efficiency, reduce costs, and support safety and environmental goals in hydrocarbon production.

Salunda develops robust contactless sensors for use in harsh environments. Its technology detects position and speed and measures fluid composition, enabling inline water cut and multiphase flow sensing for oil, water, and gas fractions, as well as downhole inspection tools and BHA sensors to detect wear and potential failure. The sensors scan components such as pistons, rotors and seals for wear, and can warn of imminent issues by identifying cracks, eccentric motion, orbiting, axial shift, or vibration. The system includes oilfield tooling, production and test separator level sensing in the presence of bubbles and froth, and handheld testers for detecting biofuel in diesel. The company also supplies sensor probes and electronics that measure fluid levels and monitor froth and entrained gases, with self-compensation for changing fluid characteristics and temperature. OEM components support open-bore water cut and multiphase flow applications, and the technology is suitable for intrinsic safety and offshore environments.