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Proceedings Papers

Paper presented at the SPE Western Regional Meeting, April 27–30, 2015
Paper Number: SPE-174009-MS
... Abstract During perforating operations, the vast majority of perforating runs are executed without issue. It is possible, however, for misfires to occur. A special case of misfire can result when guns partially fire, leaving an unknown state of the remaining ballistic train. This type...
Journal Articles
Proceedings Papers

Paper presented at the SPE Western North American and Rocky Mountain Joint Meeting, April 17–18, 2014
Paper Number: SPE-169539-MS
Proceedings Papers

Paper presented at the 1st World Petroleum Congress, July 18–24, 1933
Paper Number: WPC-141
... sensitive to the ignition quality (cetene value) of the fuel when idling. With fuels of a rather low cetene value and which give good performance at half or full loads, misfiring occurs when idling. In many of these cases strokes with normal ignition alternate with misfiring strokes in a regular manner...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2022
Paper Number: OTC-31571-MS
... above incorporates an expendable modularized initiator positioned in each gun unit ( Fig-3 and Fig-4 ). This concept reduces wire crimping, which in turn reduces the risk of human error, which may cause the gun to misfire. This improvement in reliability also contributes to gain in efficiency...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, June 8–9, 2021
Paper Number: SPE-201047-MS
.... This new criterion has been applied successfully since 2018; 325 m of HMX achieved perforation condition without an indication of misfire or catastrophic self-detonation, resulting in reduce 50% of HNS consumption. In conclusion, the new temperature cutoff is valid for maximizing the use of HMX...
Journal Articles
J Pet Technol 70 (09): 24–25.
Paper Number: SPE-0918-0024-JPT
Published: 01 September 2018
... assembly and eliminate the major cause of perforating misfires: technique-sensitive crimping and wiring. The initiator can be plugged into a perforating gun by using simple mechanical and electrical connections without requiring complicated assembly. The new system eliminates all complex field wiring...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189928-MS
... assembly, which was stuck in the liner following a misfire while attempting to set the plug. The fishing job was further complicated due to the presence of a parted section of electric line on top of the original fish. Recent developments in heavy-duty fishing operations were incorporated...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189957-MS
... and to prevent misfiring ( Newman 2003 ). The guns were successfully activated without nonproductive time (NPT) or health, safety, or environmental (HSE) incidents during operations. A successful perforating operation was completed with 4,000 psi underbalance in a new formation using hydraulic detonation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-174922-MS
... existing plug-and-perf equipment. Wireline service companies traditionally experience reliability in unconventional well perforating ranging from 30 runs/misrun to 100 runs/misrun. Early results suggest the new system may exceed 1,000 runs/misrun. By reducing the risk of mishaps, misruns and misfires, rig...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174173-MS
... guns on coiled tubing (estimated to be 4 to 6 hours from surface), there will be sufficient time to position the guns at depth before detonation, and sufficient time to retrieve the gun string from the wellbore in the event of a misfire. All perforation flow lab tests in the APFL were run at Hejre...
Journal Articles
J Pet Technol 66 (09): 106–109.
Paper Number: SPE-0914-0106-JPT
Published: 01 September 2014
...Adam Wilson This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 169539, ’Diagnostic Fracture Injection Tests: Common Mistakes, Misfires, and Misdiagnoses,’ by R.D. Barree, SPE, J.L. Miskimins, SPE, and J.V. Gilbert, SPE, Barree & Associates...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2186
... model parameters in fitting geophysical survey results can be found by minimizing the misfit between observed and calculated arrival times using non-linear optimization schemes (generally called inversion techniques by geophysicists). The misfir or objective function to be minimized must...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, February 23–25, 2005
Paper Number: SPE-92330-MS
... well where a 205 ft patch isolated holes in casing from a perforating gun misfire. All three patches pressure-tested successfully thus enabling the wells to be fracture stimulated and produced. The product provides high-strength flush-bore expandable seals at the ends of a liner comprised...
Proceedings Papers

Paper presented at the European Petroleum Conference, October 29–31, 2002
Paper Number: SPE-78313-MS
.... A significant feature of the hydraulically set packer-TCP gun deployment system is that it allows contingencies for recovery of the completion and TCP guns from the well in the event of a total or partial perforation misfire. This was a necessary requirement in view of the fact that a long perforation gun...
Proceedings Papers

Paper presented at the ASSE Professional Development Conference and Exposition, June 9–12, 2002
Paper Number: ASSE-02-750
... in the work process. Phase 2: Assessing the Baseline Culture Without advance inquiry into the root beliefs, norms and assumptions that drive people's behavior, even the best programmatic efforts may misfire. So it is axiomatic that an organization should carefully assess its culture - communication, trust...
Proceedings Papers

Paper presented at the 8th ISRM Congress, September 25–29, 1995
Paper Number: ISRM-8CONGRESS-1995-204
... efficient earth moving equipment and the development of low cost explosives such as ANFO, Just (1980) • There has been of necessity, a need to evaluate the efficiency of such blasts as regards explosive consumption, number of delays, degree of confinement, vibration levels, and number of misfired holes...
Journal Articles
Mar Technol SNAME N 20 (02): 159–163.
Paper Number: SNAME-MTSN-1983-20-2-159
Published: 01 April 1983
... appreciated or recognized. Diesel engine misfiring and torsional coupling stiffness variables are addressed to show these effects on shaft stresses and gear overload. The role of the computer in monitoring and recording actual torsional vibration data is presented. 1 4 1983 1 4 1983 1983...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1976
Paper Number: OTC-2514-MS
...) arrangement for special experimentation. A tuned array is monitored for auto-firing, misfire, or low energy output of any component gun. An audible alarm occurs when any fault is detected. Each individual trace and the algebraic sum of all traces are- buffered and furnished as outputs for recording...

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