Han Zongzheng. Research and Application of Combined Perforation and Sand Control with Metal Plug[J]. Petroleum Drilling Techniques, 2013, 41(3): 119-122. DOI: 10.3969/j.issn.1001-0890.2013.03.023
Citation: Han Zongzheng. Research and Application of Combined Perforation and Sand Control with Metal Plug[J]. Petroleum Drilling Techniques, 2013, 41(3): 119-122. DOI: 10.3969/j.issn.1001-0890.2013.03.023

Research and Application of Combined Perforation and Sand Control with Metal Plug

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  • Received Date: August 15, 2012
  • Revised Date: March 02, 2013
  • Combined perforation and sand control technique doesn’t work well in loose and tight formation because of the formation structure,so we had developed a new combined perforation and sandcontrol technique with metal plug.Proceeding from the idea to replace loose granular sand control material with integral metal plug,we changed the material’s shape and basic parameters in order to control sands with diameter larger than 0.1 millimeters.The 20 mesh metal screen was pressed into a hollow and pyramidal plug with six slices.Upon pushed into the target oil layer,the metal plug would be filled into the front of perforation tunnels at a certain depth of the oil layer,forming a three dimensional sand control screen to block the sand from the well.In addition,the sandcontrol perforator was developed,and the integrated perforation and sand control in one run was invented to replace the complicated sandcontrol measure after perforation.The application of this technique to Jin 7 Block resulted in sand content in produced fluid less than 0.03% and normal production without pump inspection for over a year.That indicates that the new technique is suitable for sand control in loose formation,providing a new technical device for sand control.
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