000 03399nmc a2200289 4500
005 20260521160332.0
008 260224s2001 xxu ing
041 _aInglés
100 1 _aRosetto, Ilton
_96193
100 1 _aSchoener-Scott, Martín
_96194
100 1 _aFulvio Etcheverry, Carlos
_96195
100 1 _aAlmeida, José
_96196
111 2 _aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina)
_95738
245 0 0 _aCase History: First Coiled-Tubing-Conveyed Live Well Intervention Run From a Semi-Submersible Platform in Brazil to Increase Perforation Length in a Deep Water Horizontal Wellbore
_bSPE 69519
260 _aDallas, Texas
_bSociety of Petroleum Engineers
_c2001
270 _a12/09/06 ; 09/05/2003
520 _aThis paper will describe the first coiled-tubing-conveyed perforating (CTCP) jobs performed offshore in a horizontal well in the Campos Basin, Río de Janeiro, Brazil. The operation was needed to obtain the objectives sought after for this well and also to provide a "learning curve" for a major job that was to be run subsequent to this job using the same method. The second job was to be in a water depth of 968 ft., and more than 1,000 ft. of guns would be run. Both jobs will be discussed in this paper along with the advantages gained on the second job from the first experience. The first procedure required perforating of a 262-ft. interval in a 92-degree horizontal well using 2 in., 6 SPF super deep penetration scalloped guns that would be coiled-tubing deployed through 3-½ in. production tubing. The operation was to be performed from a semi-submersible platform, and the running and retrieving of the perforating guns would have to be accomplished without killing the well so that damaging completion fluids would not come into contact with the reservoir. Requirements for the job were that a safe method be used and that equipment and operational costs be kept at minimum so that a greater return on investment could be realized. Operational conditions included the following: 1. Perforation was to be conducted with the well in an underbalanced condition so that no formation damage would be sustained. 2. The operation had to be run from a semi-submersible 5 3. that was set in a water depth of 430 ft. (2 nd job performed in a water depth of 968 ft.) 4. The gun assembly would have to pass through a 2.81-in. minimum ID. He two jobs were completed under live well conditions, and both were successful. The estimated cost saving from elimination of 3 days of rig time for the second job was approximately $360,000. Even more significant for this technology, there are no documented jobs in which this perforation length has been attempted anywhere in the world from a semi-submersible or where the water-depth distance was used as a lubricator for the guns
650 0 _aPerforación bajo balance
_92538
700 1 _aSchoener-Scott, Martín
_96194
700 1 _aFulvio Etcheverry, Carlos
_96195
700 1 _aAlmeida, José
_96196
711 2 _aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina)
800 1 _aRosetto, Ilton
_96193
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69519.pdf
942 _cCONGTP
_2ddc
999 _c131028
_d131028