Oil & Gas Facility Saves $290,000 In Panel Costs With Rosemount Pressure Transmitters

Customer

Oil and Gas Facility, Southern USA

Application

Wellhead control, chemical injection and emergency shutdown system application requiring panel mount pressure transmitter

Challenge

An oil and gas facility in the Southern United States needed a pressure transmitter in a compact package that minimized the weight, size and overall cost of the panel. Conventional style pressure transmitters lack the form factor necessary to optimize installation in applications such as wellhead control panels, chemical injection skids and hydraulic power units.

Using a conventional style pressure transmitter not only increases the weight, but it also requires much more “workable” space for accessing the head, removing covers and running conduit. Most installations require an additional foot and a half of space around the pressure transmitter to accommodate these functions, which can triple the height and depth dimension of a panel.

Solution

Designed specially with the application requirements of control panels, the Rosemount 4600 Pressure Transmitter provides a compact package that minimizes the weight, size and overall cost of the panel. In addition, the Rosemount 4600 Pressure Transmitter provides best-in-class performance, stability and reliability.

The compact design of the Rosemount 4600 Pressure Transmitter enables three transmitters to be mounted in the same amount of space as one conventional style transmitter. The average panel is approximately eight feet (2.4 m) high and varies in length and depth depending on the number of pressure transmitters installed in the panel. Based on a panel containing 80 pressure transmitters, the panel has the following dimensions and cost (without tubing, brackets, and other mounting hardware): 

See table 1.

Solution

By using panel transmitters, savings of 34% were realized on panel cost. Just direct stainless steel panel costs were quantified at 50% by using a panel transmitter.

Savings are increased to $200,000 per panel on large platform projects. On these, expanding the size of the panel is not feasible because the panel becomes too large. Another panel must be added at a cost of about $200,000 per panel. The oil and gas facility was able to save $290,000 in panel costs by using the Rosemount 4600 Pressure Transmitter.

An integral conduit seal to allow mounting directly into the bulkhead is a feature of the Rosemount 4600 Pressure Transmitter. This eliminates additional conduit and conduit seals, as well as additional mounting brackets.

See table 2.

Solution

Considering the same example based on 80 pressure transmitters within the panel, the conduit and bracket savings reduce the panel cost an additional $7,680. Total realized savings includes both total panel costs and total hardware costs, resulting in a savings of $14,440 per panel or 52% cost reduction per panel.

See table 3.