Self-contained compact rotary steerable system

Abstract

A self-sufficient rotary steerable system configured to provide a bottom hole assembly with a build-up rate of at least 25 degrees per 100 feet of drilling distance. The rotary steerable system has a reduced length without the removal or omission of functional components, including a power module, a control module, a communication module, a filter module, a valve module, and/or a pressure regulation module. The build-up rate is defined as a function of a length between a first contact point on a drill bit of the bottom hole assembly and a second contact point at a piston assembly of the rotary steerable system; length between the second contact point and a third contact point at a stabilizer of the rotary steerable system; the drill bit outer diameter; the piston assembly outer diameter; and the stabilizer outer diameter.

1 . A bottom hole assembly, comprising:
 a drill bit having a first contact point;   a rotary steerable system including a steering section, a power module, and a stabilizer; wherein the steering section has a second contact point and the stabilizer has a third contact point; wherein the power module is configured to generate power for the rotary steerable system, wherein the power module is disposed between the first contact point and the third contact point;   wherein the bottom hole assembly is configured to achieve a build-up-rate (BUR) of at least 25 degrees per 100 feet of drilling.   
     
     
         2 . The bottom hole assembly of  claim 1 , wherein the power module is disposed between the second contact point and the third contact point. 
     
     
         3 . The bottom hole assembly of  claim 1 , further comprising a control module disposed between the first contact point and the third contact point. 
     
     
         4 . The bottom hole assembly of  claim 3 , wherein the control module is disposed between the second contact point and the third contact point. 
     
     
         5 . The bottom hole assembly of  claim 3 , further comprising a communication module disposed between the first contact point and an upstream end of the stabilizer. 
     
     
         6 . The bottom hole assembly of  claim 5 , wherein the communication module is disposed between the first contact point and the third contact point. 
     
     
         7 . The bottom hole assembly of  claim 5 , further comprising a filter module disposed between the first contact point and the third contact point. 
     
     
         8 . The bottom hole assembly of  claim 7 , wherein the filter module is disposed between the second contact point and the third contact point. 
     
     
         9 . The bottom hole assembly of  claim 7 , further comprising a valve module disposed between the first contact point and the third contact point. 
     
     
         10 . The bottom hole assembly of  claim 9 , wherein the valve module is disposed between the second contact point and the third contact point. 
     
     
         11 . The bottom hole assembly of  claim 9 , further comprising a pressure regulation module disposed between the first contact point and the third contact point. 
     
     
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