Abstract An apparatus for installing and removing flow valves in a well tubing having a plurality of flow control receiving stations offset from the tubing each of which is provided with a seat for a flow control unit including an elongated housing means with a shifting tool pivotally supported at its upper end to the housing means. Sleeve means slidably surrounds the housing means and shifting tool and is initially positioned to lock the pivotal support to thereby retain the shifting tool aligned with the housing means as the apparatus is lowered in well tubing with a wire line. The housing means carries spring urged guide means that are normally retracted within the housing by engagement with the sleeve means as the apparatus is lowered in the well tubing and the shifting tool is provided with spring urged cam means that is also retained within the shifting tool by the sleeve means as the apparatus is lowered in the well tubing. The well tubing is provided with a plurality of orienting means one of which is positioned immediately above each off-set flow control receiving station in the well tubing and when the predetermined off-set flow control receiving station is reached in which valve means is to be set or valve means removed therefrom the brake on the lowering cable is set so that downward movement of the housing means is arrested which enables the sleeve means to continue moving downward and thereby disengage from the spring urged guide means carried by the housing means; to unlock the pivotal support so that the shifting tool may move laterally; and alignes a slot in the sleeve means with the spring urged cam means of the shifting tool so that the cam means may move outwardly of the shifting tool to engage the well tubing wall and shift the shifting tool laterally. The spring urged guide means carried by the housing means engages the orienting guide in the well tubing to orient the shifting tool in a desired manner relative to the off-set section or station so that a flow control unit may be either installed therein or removed therefrom.
Inventors
👤 J Outhouse
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-27 10:49
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
285 words
A flow control unit handling apparatus adapted for use in placing a flow control unit in a well tubing having collars and having a plurality of flow control receiving sections off-set from the tubing each of which is provided with a seat for a flow control unit and for removing said unit from said seat comprising: a. an elongated housing means; b. a shifting tool pivotally supported at its upper end to said housing means; c. sleeve means slidably mounted on said housing means and shifting tool normally locking said pivotal support to thereby retain said shifting tool aligned with said housing means as the apparatus is lowered in the well tubing; d. spring urged guide means carried by said housing means, said guide means normally retracted in said houSing by engagement with said sleeve means as the apparatus is lowered in the well tubing; e. spring urged cam means carried by said shifting tool and normally retained retracted in said shifting tool against the force of said spring, said cam means in retracted position in said shifting tool engaging said sleeve means; f. said sleeve means having a slot therein for aligning with said cam means; g. said sleeve means upon arresting downward movement of said housing means in the well tubing shifting longitudinally along said housing means to disengage from said spring urged guide means to enable said guide means to move outwardly from said housing means; to align the slot in said sleeve means with said cam means to enable said cam means to move outwardly into engagement with the well tubing; and to release said pivotal support whereby said cam means may shift said shifting tool laterally of the well bore.
Claim 2
Dependent Claim
285 words
A flow control unit handling apparatus adapted for use in placing a flow control unit in a well tubing having collars and having a plurality of flow control receiving sections off-set from the tubing each of which is provided with a seat for a flow control unit and for removing said unit from said seat comprising: a. an elongated housing means; b. a shifting tool pivotally supported at its upper end to said housing means; c. sleeve means slidably mounted on said housing means and shifting tool normally locking said pivotal support to thereby retain said shifting tool aligned with said housing means as the apparatus is lowered in the well tubing; d. spring urged guide means carried by said housing means, said guide means normally retracted in said houSing by engagement with said sleeve means as the apparatus is lowered in the well tubing; e. spring urged cam means carried by said shifting tool and normally retained retracted in said shifting tool against the force of said spring, said cam means in retracted position in said shifting tool engaging said sleeve means; f. said sleeve means having a slot therein for aligning with said cam means; g. said sleeve means upon arresting downward movement of said housing means in the well tubing shifting longitudinally along said housing means to disengage from said spring urged guide means to enable said guide means to move outwardly from said housing means; to align the slot in said sleeve means with said cam means to enable said cam means to move outwardly into engagement with the well tubing; and to release said pivotal support whereby said cam means may shift said shifting tool laterally of the well bore.
Claim 3
Dependent Claim
32 words
The invention of claim 1 including orienting guide means carried by the well tubing and engageable with said guide means carried by said housing to orient the apparatus in the well tubing.
Claim 4
Dependent Claim
68 words
The invention of claim 1 including cooperating pin and slot means in said sleeve means and shifting tool to guide said sleeve means as it slides longitudinally of said housing means and shifting tool, said pin adapted to shear whereupon said sleeve means engages said cam means and urges it into retracted position in said shifting tool so that the apparatus may be retrieved from the well tubing.