Multi-Well Control Panels

Quick Links to Information Below

• Multi-Well Control Panel Overview
• Well Opening Sequence for Single Well Control Panels
• Well Closing Sequence Single Well Control Panels
• Shutdown Chart Single Well Control Panels

PDF Documents

• Well Control Solutions
• Well Control Solutions - Spanish Version

Multi-Well Control Panel Overview

eP's multi-well control panels are a combination of standard pneumatic, hydraulic, and electronic based logic in a single integrated solution for multiple wells in both onshore and offshore applications. Systems are designed to client specifications and offer a variety of different options to suit all operational needs from weight and footprint layout to operational functionality. In addition to this, eP offers standard designs where client preferences are not defined.

As an option, well control panels designed by eP can incorporate removable and interchangeable well control modules, each controlling a single well. Any well module can be easily isolated and removed without affecting the operation of any other part of the well control panel. Existing modules can be removed and a spare module installed with a minimum of downtime.

eP's multi-well control panel is a fail-safe system utilizing control logic to provide ESD, fusible loop fire protection, and wellhead valve opening/closing sequencing. eP control systems operate either on low pressure pneumatic or hydraulic logic, or electronic control logic using a RTU or PLC based system. The pneumatic pressure source could be either process gas from the wellsite or an air compressor unit. Hydraulic control pressure is developed through the use of a hydraulic pump within the control system.

Multiple well panels that extend automatic control to a number of wells from a single location are essentially clusters of single well control panels housed together and designed to function in a particular manner and in a specific environment. All system operating controls, pumps, and control logic may be centrally located within the multi-well panel.

These custom designed panels can be built to accommodate any number of wells depending upon requirements.

All the features of the single well panel are offered in the multi-well design. This includes sequential valve opening and closing, emergency shutdown, manual override, fire safety shutdown, and any required combination of hydraulic and/or pneumatic valve actuator control.

The emergency shutdown control initiates total platform shutdown from a signal provided by fusible plug loop, or from manual emergency shutdown stations.

Flowline pressures can be monitored and initiate appropriate well shut-in if any of the setpoints extend beyond the safe operating parameters.

eP's multi-well safety control systems are designed with ease of serviceability in mind. Panel enclosures are constructed of corrosion resistant type 316 stainless steel, incorporate removable doors for easy access to panel components when required.

In addition to eP's expertise in pneumatic and hydraulic panel design and fabrication, we routinely provide control panels that are designed for remote telemetry control. These panels include control sections that convert panel status indications into electrical signals suitable for telemetry transmission. Additionally, incoming signals are converted by the panel into the appropriate pneumatic or hydraulic control pressure to operate production control and safety valves.

All electrical and electronic controls are usually designed to be explosion proof or intrinsically safe to meet the requirements of certifying authorities such as U.L. CENELEC, BASEEFA, C.S.A., and others.

If your application requires multi-well control, let eP provide the expertise required. eP's engineers are always available to assist customers in development of project design. For years, eP has worked with customers and engineering firms to develop, improve and optimize control panel designs, providing the customer a quality system with commercial savings.

Well Opening Sequence for Well Control Panels

The well control panel contains a pneumatic interlock circuit to ensure the following well opening sequence.

• Hydraulic pressure applied to the subsurface safety valve (SCSSV).
• Pneumatic or hydraulic pressure applied to the master surface safety valve (MV).
• Pneumatic or hydraulic pressure applied to the wing surface safety valve (WV).

Well Closing Sequence for Well Control Panels

The well control panel contains an adjustable time delay to ensure the following well closing sequence.

• Pneumatic or hydraulic pressure vented from the wing surface safety valve (WV).
• Pneumatic or hydraulic pressure vented from the master surface safety valve (MV).
• Hydraulic pressure vented from the subsurface safety valve (SCSSV).

Shutdown Chart for Well Control Panels

Response	Action
	Remote ESD	Fusible Plugs	High Pilot	Low Pilot	Manual WV at Panel	Manual MV at Panel	Manual SCSSV at Panel
Close WV
Close MV
Close SCSSV
Shutdowns can be changed to meet customer requirements
Notes: Customers should specify the number and type of surface safety valves (wing, master, or both and pneumatic or hydraulic) If NACE service is required, customer should specify. Typical delivery is only four to six weeks upon receipt of purchase order. All safety system accessories (i.e., pressure pilots, ESD stations, fusible plugs, gas scrubbers and installation kits) are available.