Volume 35 Issue 1
Jan.  2018
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HOU Shili, LIU Guangyan, HUANG Daquan, TANG Changqing, SHU Ruhong, WEI Jinran. Lost Circulation Control with High Filtration Lost Circulation Materials[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 53-56. doi: 10.3969/j.issn.1001-5620.2018.01.010
Citation: HOU Shili, LIU Guangyan, HUANG Daquan, TANG Changqing, SHU Ruhong, WEI Jinran. Lost Circulation Control with High Filtration Lost Circulation Materials[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 53-56. doi: 10.3969/j.issn.1001-5620.2018.01.010

Lost Circulation Control with High Filtration Lost Circulation Materials

doi: 10.3969/j.issn.1001-5620.2018.01.010
  • Received Date: 2017-12-21
  • Publish Date: 2018-01-30
  • Lost circulation materials with high filtration rate can be used in plugging mud loss zones and enhancing the pressure bearing capacity of the formation. The lost circulation material (LCM) losses its liquids swiftly when spotted at the loss zones and the solids of the LCM formed solid plugs inside the channels through which the mud losses. Drilling fluid flowing passing the surfaces of the solid plugs losses its liquids and forms dense mud cakes on the surfaces of the solid plugs, thereby increasing the pressure bearing capacity of the formation. A high filtration rate LCM has been developed for use in lost circulation control. It has almost no effect on mud rheology, and the volume of the filtrate in 30 s was 180 mL. It can be weighted to 2.3 g/cm3 with barite. In laboratory experiments, the high filtration rate LCM was tried on simulated fractures of different widths, and the pressure bearing capacity was 7 MPa. The high filtration rate LCM has been tried in field operations 7 times in different wells. It has been shown that the success rate using the high filtration rate LCM was 71%, and the time spent in controlling mud loss was only 3-4 h. The successful application of the high filtration rate LCM has provided technical support to high quality high efficiency drilling operations.

     

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