Well apparatus

Claim 2

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically with respect to the first member and above the shoulder of the first member, and a tool for so lowering the second member, including a body adapted to be arranged telescopically with respect to said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, said second member continuing to move downwardly to landed position, following movement of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with said tool body above the downwardly facing shoulder on said second member.

Claim 3

Apparatus of the character defined in claim 1, wherein the downwardly facing shoulder is on the lower end of said second member.

Claim 4

Apparatus of the character defined in claim 1, wherein the second member fits telescopically within the first member when landed, and the running tool body fits telescopically within the first member.

Claim 5

Apparatus of the character defined in claim 1, including means on the second member for connecting it to the first member, as it is lowered into landed position.

Claim 6

Apparatus of the character defined in claim 2, including means on the first member for supporting the second member in landed position.

Claim 7

Apparatus of the character defined in claim 4, including means on the tool body engageable with the second member for transmitting a downward force thereto in order to connect it to said first member.

Claim 8

Apparatus of the character defined in claim 5, including means on the tool body engageable with the second member for transmitting a downward force in order to connect it to said first member.

Claim 9

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead, a second member adapted to be lowered into a position in which it is landed on and arranged telescopically with respect to the first tubular member, said second member having a downwardly facing shoulder, and said first member having an upwardly facing shoulder which is beneath the lower end of said second member when said second member is landed thereon, and a tool for so lowering the second member, including a body, at least one latch meMber carried by the body for movement between extended and retracted positions, and means for yieldably urging each latch member to extended position, each latch member having an upwardly facing shoulder disposable beneath the downwardly facing shoulder on said second member, when in extended position, so as to support said second member for lowering therewith into landed position, and a downwardly facing shoulder for engaging the upwardly facing shoulder on the first member, during lowering of said second member into landed position, so as to move said latch member to retracted position in which the upwardly facing shoulder thereon is withdrawn from beneath the downwardly facing shoulder on said second member, said second member continuing to move downwardly to landed position, following moving of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with tool body above the downwardly facing shoulder on said second member.

Claim 10

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead, a second member adapted to be lowered into a position in which it is landed on and arranged telescopically with respect to the first tubular member, said second member having a downwardly facing shoulder, and said first member having an upwardly facing shoulder which is beneath the lower end of said second member when said second member is landed thereon, and a tool for so lowering the second member, including a body, at least one latch meMber carried by the body for movement between extended and retracted positions, and means for yieldably urging each latch member to extended position, each latch member having an upwardly facing shoulder disposable beneath the downwardly facing shoulder on said second member, when in extended position, so as to support said second member for lowering therewith into landed position, and a downwardly facing shoulder for engaging the upwardly facing shoulder on the first member, during lowering of said second member into landed position, so as to move said latch member to retracted position in which the upwardly facing shoulder thereon is withdrawn from beneath the downwardly facing shoulder on said second member, said second member continuing to move downwardly to landed position, following moving of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with tool body above the downwardly facing shoulder on said second member.

Claim 11

Apparatus of the character defined in claim 8, including means on the second member for connecting it to the first member, during lowering into landed position, and means on the tool body engageable with the second member for transmitting a downward force in order to connect it to said first member.

Claim 12

Apparatus for use in a wellhead, comprising a member adapted to be lowered into a landed position within the bore of the wellhead, and a tool including a body adapted to be arranged telescopically with respect to the member, at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, said member having a downwardly facing shoulder on its lower end, and each said latch member having an upwardly facing shoulder thereon disposable beneath the shoulder on the member, when said tool body is so arranged and said latch member is so extended, so as to support said member for lowering therewith, and a downwardly facing shoulder thereon beneath said upwardly facing shoulder.

Claim 13

Apparatus for use in a wellhead, comprising a member adapted to be lowered into a landed position within the bore of the wellhead, and a tool including a body adapted to be arranged telescopically with respect to the member, at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, said member having a downwardly facing shoulder on its lower end, and each said latch member having an upwardly facing shoulder thereon disposable beneath the shoulder on the member, when said tool body is so arranged and said latch member is so extended, so as to support said member for lowering therewith, and a downwardly facing shoulder thereon beneath said upwardly facing shoulder.

Claim 14

Apparatus of the character defined in claim 10, wherein there are a plurality of individually extendible and retractable latch members.

Claim 15

Apparatus of the character defined in claim 10, wherein said member includes first and second telescopically arranged tubular body portions which are movable vertically with respect to one another, and a seal ring disposed between oppositely facing shoulders on the first and second body portions in position to be expanded in response to such movement, said first body portion having the upwardly facing shoulder thereon, and said tool body having means thereon engageable with said second body portion for transmitting a downward force thereto.

Claim 16

Apparatus of the character defined in claim 12, including shear means releasably connecting said first and second body portions to one another.

Claim 17

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead, a second member adapted to be lowered into a position in which it is landed on and arranged telescopically with respect to the first tubular member, said second member having a downwardly facing shoulder, and said first member having an upwardly facing shoulder which is beneath the lower end of said second member when said second member is landed thereon, and a tool for so lowering the second member, including a body, at least one latch member carried by the body for movement between extended and retracted positions, means for yieldably urging each latch member to extended position, each latch member having an upwardly facing shoulder disposable beneath the downwardly facing shoulder on said second member, when in extended position, so as to support said second member for lowering therewith into landed position, and a downwardly facing sHoulder for engaging the upwardly facing shoulder on the first member, during lowering of said second member into landed position, so as to move said latch member to retracted position in which the upwardly facing shoulder thereon is withdrawn from beneath the downwardly facing shoulder on said second member, said second member continuing to move downwardly to landed position, following moving of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with said tool body above the downwardly facing shoulder on said second member, means on the second member for connecting it to the first member, during lowering into landed position, said connecting means being disconnectible, upon raising of said second member from landed position, so that each latch member is yieldably urged to extended position to permit said second member to be raised with said tool, and means on the tool for transmitting force to said second member for selectively connecting and disconnecting it with respect to said first member.

Claim 18

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead, a second member adapted to be lowered into a position in which it is landed on and arranged telescopically with respect to the first tubular member, said second member having a downwardly facing shoulder, and said first member having an upwardly facing shoulder which is beneath the lower end of said second member when said second member is landed thereon, and a tool for so lowering the second member, including a body, at least one latch member carried by the body for movement between extended and retracted positions, means for yieldably urging each latch member to extended position, each latch member having an upwardly facing shoulder disposable beneath the downwardly facing shoulder on said second member, when in extended position, so as to support said second member for lowering therewith into landed position, and a downwardly facing sHoulder for engaging the upwardly facing shoulder on the first member, during lowering of said second member into landed position, so as to move said latch member to retracted position in which the upwardly facing shoulder thereon is withdrawn from beneath the downwardly facing shoulder on said second member, said second member continuing to move downwardly to landed position, following moving of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with said tool body above the downwardly facing shoulder on said second member, means on the second member for connecting it to the first member, during lowering into landed position, said connecting means being disconnectible, upon raising of said second member from landed position, so that each latch member is yieldably urged to extended position to permit said second member to be raised with said tool, and means on the tool for transmitting force to said second member for selectively connecting and disconnecting it with respect to said first member.

Claim 19

Apparatus of the character defined in claim 14, wherein the downwardly facing shoulder is on the lower end of said second member.

Claim 20

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically with respect to the first member and above the shoulder of the first member, and a tool for so lowering the second member, including a body adapted to be arranged telescopically with respect to said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, said second member continuing to move downwardly to landed position, following movement of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with said tool body above the downwardly facing shoulder on said second member, means on the second member for connecting it to the first member, during lowering into landed position, said connecting means being disconnectible, upon raising of said second member from landed position, so that each latch member is yieldably urged to extended position to permit said second member to be raised with said tool, and means on the tool for transmitting force to said second member for selectively connecting and disconnecting it with respect to said first member.

Claim 21

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically with respect to the first member and above the shoulder of the first member, and a tool for so lowering the second member, including a body adapted to be arranged telescopically with respect to said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, said second member continuing to move downwardly to landed position, following movement of each latch member to retracted position, until the vertical distance between the shoulders on said members is less than that between the shoulders on said latch member, whereby each latch member will be held in retracted position by said second member as it is lifted with said tool body above the downwardly facing shoulder on said second member, means on the second member for connecting it to the first member, during lowering into landed position, said connecting means being disconnectible, upon raising of said second member from landed position, so that each latch member is yieldably urged to extended position to permit said second member to be raised with said tool, and means on the tool for transmitting force to said second member for selectively connecting and disconnecting it with respect to said first member.

Claim 22

Apparatus of the character defined in claim 16, wherein the downwardly facing shoulder is on the lower end of said second member.

Claim 23

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically within the first member and above the shoulder of the first member, and A tool for so lowering the second member, including a body adapted to be arranged telescopically within said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, and means for holding the latch member in said retracted position as said latch means is raised, upon lifting of said tool, above the downwardly facing shoulder on said second member.

Claim 24

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically within the first member and above the shoulder of the first member, and A tool for so lowering the second member, including a body adapted to be arranged telescopically within said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, and means for holding the latch member in said retracted position as said latch means is raised, upon lifting of said tool, above the downwardly facing shoulder on said second member.

Claim 25

Apparatus of the character defined in claim 18, wherein the downwardly facing shoulder is on the lower end of said second member.

Claim 26

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically with respect to the first member and above the shoulder of the first member, and a tool for so lowering the second member, including a body adapted to be arranged telescopically with respect to said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, means for holding the latch member in said retracted position as said latch means is raised, upon lifting of said tool, above the downwardly facing shoulder on said second member, said second member including first and second telescopically arranged tubular body portions which are connected for vertical movement with respect to one another, and a seal ring disposed between oppositely facing shoulders on the first and second body portions in position to be expanded in response to such movement, said first body portion having the upwardly facing shoulder thereon, means for connecting the first body portion to the first member during lowering of the second member into landed position, said tool body having means thereon engageable with said second body portion for transmitting a force thereto for connecting the first body portion to the first member and then moving said second body portion downwardly with respect to said first body portion.

Claim 27

Apparatus for use in a wellhead, comprising a first member disposable within the bore of the wellhead and having an upwardly facing shoulder, a second member having a downwardly facing shoulder and adapted to be lowered into a landed position within the bore in which it is arranged telescopically with respect to the first member and above the shoulder of the first member, and a tool for so lowering the second member, including a body adapted to be arranged telescopically with respect to said second member, latch means comprising at least one latch member carried by the body for movement between extended and retracted positions, and means yieldably urging each latch member to extended position, each said latch member having an upwardly facing shoulder which is disposed beneath the downwardly facing shoulder on said second member, when said latch member is in extended position, so as to support said second member for lowering with said tool, and a downwardly facing shoulder which is engageable with said upwardly facing shoulder of the first member, during lowering of said second member with said tool, so as to move said latch member to retracted position in which it is withdrawn from beneath said shoulder on said second member, means for holding the latch member in said retracted position as said latch means is raised, upon lifting of said tool, above the downwardly facing shoulder on said second member, said second member including first and second telescopically arranged tubular body portions which are connected for vertical movement with respect to one another, and a seal ring disposed between oppositely facing shoulders on the first and second body portions in position to be expanded in response to such movement, said first body portion having the upwardly facing shoulder thereon, means for connecting the first body portion to the first member during lowering of the second member into landed position, said tool body having means thereon engageable with said second body portion for transmitting a force thereto for connecting the first body portion to the first member and then moving said second body portion downwardly with respect to said first body portion.