use of amine/phpa system to drill high reactive shales in the

use of amine/phpa system to drill high reactive shales in the
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  • What amines can be used as a shale inhibitor?
  • As a result, water can no longer be absorbed by clays, resulting in extensive shale stabilization in the aqueous system of drilling. Polyethoxylated diamines, polyether amines, polyethylene amine salts and ether amines are few examples from oligocationic amine family which can be used as a shale inhibitor (Zhong et al., 2015).
  • Does polyether diamine inhibit shale hydration in drilling fluid system?
  • In this paper, the shale hydration inhibitive properties of polyether diamine (PEDA) in drilling fluid system were studied. The inhibition was evaluated by bentonite inhibition test and bulk hardness test.
  • Is amine/PHPA a biodegradable additive?
  • The amine/PHPA system has the advantages of being a very low toxic and biodegradable additive, but it can be harmful to human health due to degradation of acrylamide into ammonia and the residual amount of acrylamide monomers in WBMs (Patel et al., 2007). 4.2.6. Salt/polymer (PHPA)
  • How can non-aqueous drilling fluids solve the drilling problems associated with shaly formations?
  • Introduction To solve the drilling problems associated with shaly formations, various Non-Aqueous Drilling Fluids (NADF) have been used in the fields by the operators. In addition to shale inhibition, suitable lubricity and temperature stability were seen by using these systems (Friedheim et al. 1991; Friedheim and Conn 1996).