Volume 32 Issue 4
May  2015
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HOU Jie, LIU Yonggui, LI Hai. Development of Testing Device Simulating Drying of Hole and Water Carrying in Air Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 32-36. doi: 10.3969/j.issn.1001-5620.2015.04.009
Citation: HOU Jie, LIU Yonggui, LI Hai. Development of Testing Device Simulating Drying of Hole and Water Carrying in Air Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 32-36. doi: 10.3969/j.issn.1001-5620.2015.04.009
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Development of Testing Device Simulating Drying of Hole and Water Carrying in Air Drilling

doi: 10.3969/j.issn.1001-5620.2015.04.009

  • Drilling Fluid Department of the Research Institute of Drilling Engineering Technology, Babaixiang, Daqing, Heilongjiang 163413, China

  • Received Date: 2015-03-31
  • Publish Date: 2015-07-31
    Abstract
  • Air base drilling fluids are suitable for drilling pressure depleted formations and wells with serious mud losses, but water cut restricts the use of this technology. To solve this problem, a synthesized water absorbent is used to carry water out of hole, and the amount of the water absorbent is calculated based on a computational model. A testing device simulating the water carrying process was developed for predicting the amount of the water absorbent suitable for a certain range of the volume of water cut. Laboratory study shows that the computational model can be used to accurately predict the amount of water cut. The reusable water absorbent has the properties of fast absorption, high absorption capacities, and resistance to salt, acid and alkali. Temperature and pressure have small effect on the performance of the water absorbent. This new device is capable of simulating water cut of different volumes, and compared with previous devices, this device is smaller and is easy to operate.

     

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