Santa Paula Buried Crude Oil Shipping Lines
by Anneliese Anderle, Petroleum Engineer
The city of Santa Paula has an extensive infrastructure of buried crude oil shipping lines used to transfer sales-quality oil from the local oil fields. All the oil pipelines are operated and maintained by Crimson Pipelines LLC. Of the pipelines underlying the streets of Santa Paula, the trunk line known as Line 600 transports oil a total of 98 miles and runs west to east (line 600 routed mostly parallel to State Route 126 in figure 1) . The remaining crude oil lines collect oil from active fields to the east, north and south of Santa Paula.
Santa Paula Buried Crude Oil Pipelines (fig. 1)
Line 600 - This 8-inch diameter trunk line consists of two segments in the Santa Paula area. The California State Fire Marshall (CSFM) designation (PLID) is 460 for the first portion 16-mile portion (Ventura to Santa Paula).
Fig. 3 - Line 600 System (PLID 459) 8”
Crude oil originates from offshore platforms at the Ventura Harbor Station and from Carpinteria via the Venoco coastal pipeline. Additional crude is received from the Upper Ojai gathering line, the South Mountain/West Mountain gathering system and from Santa Paula Truck Unloading. The system averages approximately 27,000 barrels per day (2014) and at a maximum operating pressure (MOP) of 620 psi.
The following crude oil “gathering” systems that converge at the Santa Paula Station will be presented in a clockwise order, starting with the Upper Ojai Gathering system (CSFM PLID# 867). This 6-inch diameter pipe is 7.8 miles long, generally routed in the S.R 150 (Santa Paula – Ojai Road) right-of-way. The system has four inputs with a total of approximately 800 barrels per day. The oil shipping is intermittent, as the four crude sources will pump independently.
Fig. 5 – Fillmore to Santa Paula Line (CSFM PLID 412) 8”
From the south, with a Santa Clara river crossing, is the South Mountain/West Mountain Gathering , consisting of 4 inch and 6 inch diameter line segments. Total throughput is approximately 2400 barrels per day. Flow meters are located on both sides of the river crossing to assure no leaks are occurring.
(CSFM PLID 865) 6”
Fig. 6 Southern segment of South Mountain/West Mountain Gathering (CSFM PLID 865) 6”, including Santa Clara River crossing
The last portion of buried crude oil pipe line in Santa Paula is the Santa Paula Station to the Mohawk Manifold (Ventura), a 16.3-mile segment of 8-inch diameter buried pipe. It is designated CSFM PLID 1291 and was split off from the Fillmore to Santa Paula (PLID 412) line described above.
Fig. 7 – Santa Paula to Mohawk Station (Ventura), (CSFM PLID 1291) 8”
Currently, the Fire Marshall requires mechanical integrity tests every two years for liquid pipelines in critical areas including in densely populated locales. With the passage of AB 864 (Das Williams), every hazardous liquid pipeline will be inspected each year, with pipeline operators reporting to the CSFM no later than July 1st. The regulations resulting from AB 864 are in the final 15-day comment period, from April 5 -19, 2017. The CSFM will need to add extra field staff and analysts to meet this new, more rigorous pipeline inspection schedule which will be in force beginning next year.
Anneliese Anderle, PE
April 5, 2017