1 / 10

U. S. Department of Transportation Pipeline and Hazardous Materials Safety Administration

U. S. Department of Transportation Pipeline and Hazardous Materials Safety Administration. www.dot.gov. Horizontal Directional Drilling.

euclid
Télécharger la présentation

U. S. Department of Transportation Pipeline and Hazardous Materials Safety Administration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. U. S. Department of Transportation Pipeline and Hazardous Materials Safety Administration www.dot.gov

  2. Horizontal Directional Drilling Oklahoma Pipeline Safety Seminars Tulsa, OKMay 17-18, 2006Presented by John A. Jacobi, P.E.Community Assistance & Technical Services ManagerSouthwest Region

  3. Outline • PHMSA & HDD • Citizens Gas • NTSB Safety Recommendation P-99-1 • Advisory Bulletin ADB-99-04 (HDD) • Advisory Bulletin ADB-06-01 (Excavation OQ) • Differential Impedance Obstacle Detection • Intro to HDD • R&D Effort

  4. Citizens Gas • Indianapolis, Indiana - July 21, 1997 • 310# 20” Gas Transmission line dropped to 30# for road maintenance • 8” parallel line installed by HDD • 20” line ruptured when pressure restored • 1 killed, 1 injured, 6 homes destroyed, 65 other homes damaged, 75 people in temporary shelters

  5. NTSB Findings • New 8” pipe within 4” of 20” line • Near longitudinal gaping fracture 5.8 ft long • Gouge marks from HDD reaming tool along entire length of fracture • Plans called for 5 ft separation • Pre-HDD field measurements showed 5 to 7 ft could be maintained • Did not happen!!

  6. NTSB Safety Recommendation • 49 CFR 192.614 requires excavation damage prevention programs • Excavation damage includes damage from boring

  7. NTSB Safety Recommendation NTSB recommended (April 28, 1999) that RSPA (PHMSA’s predecessor), “[w]hen reviewing pipeline operator safety programs, ensure that operators’ damage prevention programs include actions to protect their facilities when directional drilling operations are conducted in proximity to those facilities. (P-99-1)”

  8. Advisory Bulletin ADB-99-04 • Issued at 64 FR 46967, August 27, 1999 • Cited Indianapolis rupture • Urged pipeline owners & operators to review O&M and damage prevention programs to consider dangers of HDD near their systems • Closed NTSB Safety Recommendation P-99-1

  9. Advisory Bulletin ADB-06-01 • Issued at 71 FR 2613, January 17, 2006 • Cited several excavation-related incidents • 11-05 school evacuation in Virginia • 6-05 damage to an 800# 30” line (2” nipple) • 1-05 damage to a liquid line while getting ready to pig (6” valve knocked off) • 11-04 Walnut Creek CA – 5 deaths + injuries • EXCAVATION AND BACKFILLING ARE SUBJECT TO OQ REQUIREMENTS!!

  10. Questions ???Thank You!! john.jacobi@dot.gov 281-685-7128 (cell) 713-272-2839

More Related