"ONEOK NGL PIPELINE, LLC"
hazardous_liquid Incident — — July 18, 2021
Incident Information
| Incident Date | July 18, 2021 |
| Operator | "ONEOK NGL PIPELINE, LLC" |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 33.63989, -96.43154 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | PUMP OR PUMP-RELATED EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $100 |
| Emergency Response | $72 |
| Other Costs | $1,250 |
Location Map
Incident Narrative
"UPDATE 11/16/2021 THE CRACKED FITTING WAS SENT TO A METALLURGICAL TESTING FACILITY TO DETERMINE THE CAUSE OF THE FAILURE. THE RESULTS OF THE METALLURGICAL ANALYSIS INDICATE THAT THE HAIRLINE CRACK IN THE STAINLESS STEEL FITTING WAS DUE TO OVER-TORQUE. ORIGINAL ON JULY 18, 2021 AT APPROXIMATELY 12:21 PM, ONEOK PIPELINE CONTROL CENTER RECEIVED A GAS DETECT ALARM FOR THE ONEOK STERLING III BELLS PUMP STATION. THE GAS DETECT ALARM ACTIVATED THE STATION SHUTDOWN AND ISOLATED THE PUMP STATION FROM THE PIPELINE. ONEOK PIPELINE CONTROL DISPATCHED LOCAL FIELD OPERATIONS TO THE LOCATION. AT APPROXIMATELY 1:38 PM, THE ONEOK FIELD OPERATOR ARRIVED ON SITE AND NOTICED VAPORS IN THE VICINITY OF THE NUMBER 2 PUMP. THE FIELD OPERATOR ISOLATED THE PUMP AND BEGAN EVACUATING HYDROCARBONS FROM THE PUMP AND ASSOCIATED PIPING AT 1:48PM. AFTER EVACUATION OF HYDROCARBONS, A HAIRLINE CRACK IN THE STAINLESS STEEL TUBING FITTING CONNECTED TO THE PUMPS INBOARD SEAL FLUSH STAINLESS STEEL TUBING WAS DISCOVERED AS THE SOURCE OF THE RELEASE. THE STAINLESS STEEL TUBING FITTING WAS REPLACED, THE PIPING AND THE PUMP WAS PURGED WITH PRODUCT, CHECKED FOR LEAKS AND RETURNED TO SERVICE."
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.