Selectively fired, tubing-conveyed perforating guns save rig time
- Marathon Oil Co., Houston, TX (United States)
- Halliburton Energy Services, Dallas, TX (United States)
Selective firing of tubing-conveyed perforating (TCP) guns during drill stem tests (DSTs) added flexibility and saved costs for Marathon Oil Co. As an example, in the Garland field in Wyoming, the guns allowed perforating multiple zones in one trip. This saved 1 1/2--2 days/well in rig time and $25,000--30,000/well in electric wire line and DST tool charges. For international offshore operations, savings of $200,000/well appear possible. Savings result not only from perforating multiple zones, but also from arbitrarily setting firing patterns with or without zone isolation. The paper describes the testing of equipment, the design of the guns, firing heads, crossover assembly, pressure isolation sub, control line, and select-fire sub, and applications for the guns.
- OSTI ID:
- 5452904
- Journal Information:
- Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 91:29; ISSN OIGJAV; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
Similar Records
Firing system for tubing conveyed perforating gun
Permanent completion tubing conveyed perforating system