Volume 32 Issue 4
May  2015
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LI Jiancheng, QIAN Zhiwei, DU Xingguo, GUAN Jian, GUO Linhao, KUANG Xubing. Whole Oil Base Drilling Fluid Technology for Oil Shale Drilling in Liaohe Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 9-12. doi: 10.3969/j.issn.1001-5620.2015.04.003
Citation: LI Jiancheng, QIAN Zhiwei, DU Xingguo, GUAN Jian, GUO Linhao, KUANG Xubing. Whole Oil Base Drilling Fluid Technology for Oil Shale Drilling in Liaohe Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 9-12. doi: 10.3969/j.issn.1001-5620.2015.04.003

Whole Oil Base Drilling Fluid Technology for Oil Shale Drilling in Liaohe Oilfield

doi: 10.3969/j.issn.1001-5620.2015.04.003
  • Received Date: 2015-01-06
  • Publish Date: 2015-07-31
  • Well Shenping-1 is the first horizontal exploration well having oil shale and argillaceous dolomiteinterbeds reservoirs. The existence of oil shale presents drilling difficulties such as borehole instability, well path control difficult in reservoir drilling, environmental issue and low ROP, to name but a few. A whole oil base drilling fluid was developed for use on Well Shenping-1. It has a density of 1.55 g/cm3 and temperature resistance to 150 ℃. As a whole oil mud, it has good rheology, inhibitive capacity, plugging capacity, contamination resistance, lubricity and high temperature stability, thus is able to control the swelling and sloughing of the oil shale when in contact with water. Shenping-1 had an average ROP 1.6 times that of the wells drilled nearby, and time efficiency of drilling was increased by 30%.

     

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