Actuation Bladder Controlled Downhole Devices

Abstract

Various implementations described herein refer to a downhole device having a body with a cavity. The downhole device includes a mechanical element disposed within the cavity. The mechanical element has a base with a left-extending member and a right-extending member that holds the mechanical element in position within an interior space of the cavity. The downhole device includes an inflatable bladder disposed within the cavity between an interior sidewall of the cavity and the base of the mechanical element. The inflatable bladder has an opening on one end for receiving hydraulic fluid, and the inflatable bladder is activated and deactivated to selectively displace the mechanical element in and out of the cavity.

What is claimed is: 
     
         1 . A downhole device, comprising:
 a body having a cavity;   a mechanical element disposed within the cavity, wherein the mechanical element has a base with a left-extending member and a right-extending member that holds the mechanical element in position within an interior space of the cavity; and   an inflatable bladder disposed within the cavity between an interior sidewall of the cavity and the base of the mechanical element, wherein the inflatable bladder has an opening on one end for receiving hydraulic fluid, and wherein the inflatable bladder is activated and deactivated to selectively displace the mechanical element in and out of the cavity.   
     
     
         2 . The device of  claim 1 , wherein the inflatable bladder is activated by injecting the hydraulic fluid into the inflatable bladder via the opening on the one end so as to inflate the inflatable bladder with the hydraulic fluid. 
     
     
         3 . The device of  claim 1 , wherein the inflatable bladder is deactivated by releasing the hydraulic fluid from the inflatable bladder via the opening on the one end so as to deflate the inflatable bladder without the hydraulic fluid. 
     
     
         4 . The device of  claim 1 , wherein injecting the hydraulic fluid into the inflatable bladder radially displaces the mechanical element in a first radial direction relative to a center line of the mechanical device, and wherein releasing the hydraulic fluid from the inflatable bladder radially displaces the mechanical element in a second radial direction that is opposite the first radial direction relative to the center line of the mechanical device. 
     
     
         5 . The device of  claim 1 , wherein the inflatable bladder has a locking mechanism disposed adjacent to the opening that locks the hydraulic fluid within the inflatable bladder when the inflatable bladder is activated, and wherein the locking mechanism releases the hydraulic fluid from the inflatable bladder when the inflatable bladder is deactivated. 
     
     
         6 . The device of  claim 1 , wherein the body has an aperture that allows the hydraulic fluid to bi-directionally flow into and out from the opening of the inflatable bladder. 
     
     
         7 . The device of  claim 1 , wherein the mechanical element has an upper-protruding member configured to move into and out of the cavity, wherein the inflatable bladder is activated by inflating the inflatable bladder with the hydraulic fluid so as to push the upper-protruding member out of the cavity, and wherein the inflatable bladder is deactivated by releasing the hydraulic fluid from the inflatable bladder so as to allow the upper-protruding member into the cavity. 
     
     
         8 . The device of  claim 1 , wherein the mechanical element comprises a hole opening device, an anchor, a stabilizer, a reamer, or an under reamer. 
     
     
         9 . The device of  claim 1 , wherein the inflatable bladder comprises a first inflatable bladder, and wherein the device comprises a second inflatable bladder disposed within the cavity between another interior sidewall of the cavity and the base of the mechanical element, wherein the second inflatable bladder has an opening on one end for receiving hydraulic fluid, and wherein the second inflatable bladder is activated and deactivated in an alternating manner with respect to the first inflatable bladder to selectively displace the mechanical element in opposing radial directions. 
     
     
         10 . A downhole device, comprising:
 a body having an inclined member with a lower end and an upper end;   an object disposed to adjacently overlie the inclined member between the lower end and the upper end of the body; and   an inflatable bladder disposed between a sidewall at the lower end of the body and the object, wherein the inflatable bladder has an opening on one end for receiving hydraulic fluid, and wherein the inflatable bladder is activated and deactivated to selectively displace the object toward and away from the upper end, respectively.   
     
     
         11 . The device of  claim 10 , wherein the body has a roof member that retains or holds the inflatable bladder in position, and wherein the sidewall is disposed between the roof member and the inclined member of the body. 
     
     
         12 . The device of  claim 10 , wherein the inflatable bladder is activated by inflating the inflatable bladder with the hydraulic fluid so as to push the object along the inclined member toward the upper end, and wherein the inflatable bladder is deactivated by releasing the hydraulic fluid from the inflatable bladder so as to allow the object to slide along the inclined member toward the lower end. 
     
     
         13 . The device of  claim 10 , wherein injecting the hydraulic fluid into the inflatable bladder angularly displaces the object in a first angular direction along the inclined member of the body, and wherein releasing the hydraulic fluid from the inflatable bladder angularly displaces the object in a second angular direction that is opposite the first angular direction along the inclined member of the body. 
     
     
         14 . The device of  claim 10 , wherein the inflatable bladder has a locking mechanism disposed adjacent to the opening that locks the hydraulic fluid within the inflatable bladder when the inflatable bladder is activated, and wherein the locking mechanism releases the hydraulic fluid from the inflatable bladder when the inflatable bladder is deactivated. 
     
     
         15 . The device of  claim 10 , wherein the body has an aperture that allows the hydraulic fluid to bi-directionally flow into and out from the opening of the inflatable bladder. 
     
     
         16 . The device of  claim 10 , wherein the inflatable bladder comprises a first inflatable bladder, and wherein the device comprises a second inflatable bladder disposed within a recess member of the body between the inclined member of the body and the object, wherein the second inflatable bladder has an opening on one end for receiving the hydraulic fluid, and wherein the second inflatable bladder is activated and deactivated in an alternating manner with respect to the first inflatable bladder to selectively displace the object in opposing angular directions along the inclined member of the body. 
     
     
         17 . A downhole device, comprising:
 a body having a cavity and a recess formed in a floor of the cavity;   an object disposed within the cavity and coupled to a sidewall of the body via a hinge; and   an inflatable bladder disposed within the recess between the floor of the cavity and the object, wherein the inflatable bladder has an opening on one end for receiving hydraulic fluid, and wherein the inflatable bladder is activated and deactivated to selectively pivot the object.   
     
     
         18 . The device of  claim 17 , wherein the inflatable bladder is activated by injecting the hydraulic fluid into the inflatable bladder via the opening on the one end so as to inflate the inflatable bladder with the hydraulic fluid, and wherein during activation, the hydraulic fluid is pressurized and injected into the inflatable bladder via a passage way formed at the opening on the one end of the inflatable bladder. 
     
     
         19 . The device of  claim 17 , wherein the inflatable bladder is deactivated by releasing the hydraulic fluid from the inflatable bladder via the opening on the one end so as to deflate the inflatable bladder without the hydraulic fluid, and wherein during deactivation, the hydraulic fluid is depressurized and released from the inflatable bladder via a passage way formed at the opening on the one end of the inflatable bladder. 
     
     
         20 . The device of  claim 17 , wherein injecting the hydraulic fluid into the inflatable bladder pivotally displaces the object in a first rotational direction relative to the hinge, and wherein releasing the hydraulic fluid from the inflatable bladder pivotally displaces the object in a second rotational direction that is opposite the first rotational direction relative to the hinge. 
     
     
         21 . The device of  claim 17 , wherein the inflatable bladder has a locking mechanism disposed adjacent to the opening that locks the hydraulic fluid within the inflatable bladder when the inflatable bladder activated, and wherein the locking mechanism releases the hydraulic fluid from the inflatable bladder when the inflatable bladder is deactivated. 
     
     
         22 . The device of  claim 17 , wherein the body has an aperture that allows the hydraulic fluid to bi-directionally flow into and out from the opening of the inflatable bladder. 
     
     
         23 . The device of  claim 17 , wherein the inflatable bladder comprises a first inflatable bladder, and wherein the device comprises a second inflatable bladder disposed within another recess of the body between the floor of the cavity and an armature of the object, wherein the second inflatable bladder has an opening on one end for receiving the hydraulic fluid, and wherein the second inflatable bladder is activated and deactivated at a same time as the first inflatable bladder so as to assist with selectively pivoting the object in opposing rotational directions with respect to the hinge.