Volume 37 Issue 1
Feb.  2020
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LIU Junyi, GUO Baoyu, WANG Yong, CHAI Jinpeng, CHEN Erding. Study and Application of Environmentally Friendly Water Base Drilling Fluid in Shengli Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 64-70. doi: 10.3969/j.issn.1001-5620.2020.01.010
Citation: LIU Junyi, GUO Baoyu, WANG Yong, CHAI Jinpeng, CHEN Erding. Study and Application of Environmentally Friendly Water Base Drilling Fluid in Shengli Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 64-70. doi: 10.3969/j.issn.1001-5620.2020.01.010
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Study and Application of Environmentally Friendly Water Base Drilling Fluid in Shengli Oilfield

doi: 10.3969/j.issn.1001-5620.2020.01.010

  • 1. Drilling Technology Research Institute of Shengli Petroleum Engineering Corporation Limited, SINOPEC, Dongying Shandong 257100;

  • 2. Western Production Center of Great Wall Drilling Corporation, CNPC, Panjing, Liaoning 124000;

  • 3. Tarim Branch of Shengli Petroleum Engineering Corporation Limited, SINOPEC, Korla, Xinjiang 841000

  • Received Date: 2019-10-12
  • Publish Date: 2020-02-28
    Abstract
  • Waste drilling fluid is one of the major pollutants of the drilling operations. In the development of environmentally friendly water base drilling fluids, controlling the production of waste drilling fluid from the source is becoming an important means of achieving “green drilling and clean production”. An environmentally friendly high temperature filter loss reducer, HBFR, has been developed from modified starch to satisfy the needs of environmentally friendly water base drilling fluids in Shengli Oilfield. HBFR has good filtration control property in both fresh water and saltwater drilling fluids, and is resistant to high temperature (150 ℃). As one of the additives used for formulating environmentally friendly water base drilling fluids, HBFR has been used to formulate a high temperature environmentally friendly drilling fluid SLHB. SLHB in laboratory experiment showed good rheological properties, filtration control capacity, shale inhibitive capacity and contamination resistance, and can be used at 150 ℃. The HTHP filter loss of SLHB was 10.2 mL. SLHB has satisfied the level 2 requirement for sewage discharge because it has EC50 of greater than 1×105 mg/L and BOD5/CODCr of 16.2%. SLHB has been used on more than 10 wells in Shengli Oilfield, satisfying the needs for environment protection and providing a technical support for the “green development” in Shengli Oilfield with environmentally friendly drilling fluids.

     

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