西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (4): 61-64.DOI: 10.3863/j.issn.1000-2634.2000.04.017

• 油气化学工程 • Previous Articles     Next Articles

RESEARCH ON A NEW ANTI-HIGH TEMPERATURE LUID LOSS ADDITIVE OF OIL-BASE DRILLING FLUID

GAO Hai-yang HUANG Jin-jun CUI Mao-rong et al.   

  1. Southwest Petroleum Inst
  • Received:2000-04-24 Revised:1900-01-01 Online:2000-11-20 Published:2000-11-20

Abstract: To solve the problem of high fluid loss of invert emulsion drilling fluid (water in oil ) under an elevated temperature (220℃)and high density(2.38g/cm3),a new fluid loss additive (FLA) XNTROL220 of oil base drilling fluid has been developed.XNTROL220 was prepared by pyrolyzing a lipophlic humic acid derivative (in inert gas) which was obtained by reacting a hydrophilic humic acid with amine. This FLA has good dispersion capacity and can reduce the fluid loss significantly in the invert emulsion drilling fluid. It can also be used as second emulsifier and thinner in oil base fluid systems.

Key words: invert emulsion drilling fluid, filtrate reducer, elevated temperature, pyrolyze

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