Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam

Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling fluid, while they are not suitable for deep coal seam drilling due to mismatching density, insufficient bearing capacity, and poor reservoir protection effect. According to the existing problems of drilling fluid, micron-grade cenosphere with high bearing capacity and ultralow true density is selected as density regulator; it, together with polymer “XC

[1]  Ma Jianjun.  Laboratory Core Flow Research on Enzyme Biodegradable Drilling Fluid Used for Coal Bed Methane , 2013 .

[2]  Zheng Li-hui,et al.  Application state and prospects of bionic fuzzy-ball drilling fluids for coalbed methane drilling , 2011 .

[3]  Li Zhong-feng.  Laboratory studies on control coal bed methane formation damage by Fuzzy-Ball based drilling fluids , 2010 .

[4]  Huang Zhi-qiang.  Laboratory research on degradable drilling fluid for pinnate horizontal well based on coalbed methane , 2010 .

[5]  Nathan Deisman,et al.  Effect of drilling fluids on coal permeability: Impact on horizontal wellbore stability , 2009 .

[6]  K. Barr.  A Guideline to Optimize Drilling Fluids for Coalbed Methane Reservoirs , 2009 .

[7]  M. V. Kok,et al.  Evaluation of Formation Damage of Turkish Southeastern Reservoirs Caused by Drilling Fluids , 2007 .

[8]  Peng Tao.  Field Application of Hollow Glass Microsphere Low Density Drilling Fluid , 2007 .

[9]  B. Warren,et al.  State-of-the-Art in Coalbed Methane Drilling Fluids , 2008 .

[10]  Shahab D. Mohaghegh,et al.  A Parametric Study on the Benefits of Drilling Horizontal and Multilateral Wells in Coalbed Methane Reservoirs , 2005 .

[11]  B. Atencio,et al.  Field application of Glass Bubbles as a Density Reducing Agent in an Oil Base Drilling Fluid for Marginal/Low-Permeability/Low-Pressure Reservoirs , 2002 .

[12]  R. Márquez,et al.  Field Application of Glass Bubbles as a Density-Reducing Agent , 2000 .

[13]  Jerry E. Haston,et al.  Field Application of LightWeight Hollow Glass Sphere Drilling Fluid , 1997 .

[14]  George H. Medley,et al.  Use of Hollow Glass Spheres for Underbalanced Drilling Fluids , 1995 .

[15]  J.-M. di Meglio,et al.  Stabilization of aqueous foam by hydrosoluble polymers. 1. Sodium dodecyl sulfate-poly(ethylene oxide) system , 1992 .