초록 ▼

A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembl

A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

대표청구항 ▼

We claim: 1. A holding member assembly adapted for connection with a bearing assembly of a rotating control head, comprising: an internal housing, comprising: a holding member chamber; and a holding member positioned within the holding member chamber, the holding member movable between an extended

We claim: 1. A holding member assembly adapted for connection with a bearing assembly of a rotating control head, comprising: an internal housing, comprising: a holding member chamber; and a holding member positioned within the holding member chamber, the holding member movable between an extended position and a retracted position; and an extendible portion, concentrically interior to and slidably connectable to the internal housing. 2. The holding member assembly of claim 1, further comprising: a threaded section for threadedly connecting the holding member assembly to the bearing assembly. 3. The holding member assembly of claim 1, the internal housing further comprising: an upper portion; a lower portion; and an extrudable elastomer positioned between the upper portion and the lower portion. 4. The holding member assembly of claim 3, wherein the holding member chamber is defined by the lower portion. 5. The holding member assembly of claim 3, wherein extension of the extendible portion causes the internal housing upper portion to move toward the internal housing lower portion, thereby extruding the elastomer. 6. The holding member assembly of claim 3, wherein the upper portion having a shoulder; the extendible portion having a shoulder, the upper portion shoulder engaging with the extendible portion shoulder to move the upper portion toward the lower portion. 7. The holding member assembly of claim 3, wherein the extendible portion can rotate relative to the upper portion and the lower portion. 8. The holding member assembly of claim 1, further comprising a dog member; and a dog recess, wherein the dog member engages with the dog recess when the extendible portion is in an unextended position, and wherein the dog member disengages from the dog recess when the extendible portion is in an extended position. 9. The holding member assembly of claim 8, further comprising: a second dog member; and a second dog recess; wherein the second dog member engages with the second dog recess when the extendible portion is in an extended position. 10. The holding member assembly of claim 9, the lower portion further comprising: an end portion, connected to the lower portion, forming a chamber for the second dog member. 11. The holding member assembly of claim 9, wherein the second dog recess is an annular recess. 12. The holding member assembly of claim 9, wherein the extendible portion can rotate relative to the upper portion and the lower portion. 13. The holding member assembly of claim 9, wherein the second dog member can interengage with the extendible portion without rotation of the extendible portion. 14. The holding member assembly of claim 8, wherein the dog recess is an annular recess. 15. The holding member assembly of claim 8, wherein the dog member can interengage with the extendible portion without rotation of the extendible portion. 16. The holding member assembly of claim 1, wherein an outer surface of the extendible portion blocks the holding member radially outward when the extendible portion is in an extended position. 17. The holding member assembly of claim 1, wherein the holding member is configured to retract at a predetermined force on the housing member assembly. 18. The holding member assembly of claim 1, further comprising: means for latching a running tool with the holding member assembly. 19. The holding member assembly of claim 1, the internal housing further comprising: a plurality of holding members spaced around a circumference of the internal housing. 20. The holding member assembly of claim 19, wherein the plurality of holding members are equidistantly spaced around the circumference of the internal housing. 21. The holding member assembly of claim 1, the internal housing further comprising: a plurality of holding member chambers; and a plurality of holding members, each positioned with one of the plurality of holding member chambers, wherein the plurality of holding member chambers and the plurality of holding members are spaced around the circumference of the internal housing. 22. The holding member assembly of claim 21, wherein the plurality of holding members are equidistantly spaced around the circumference of the internal housing. 23. The holding member assembly of claim 1, the internal housing further comprising: a running tool bell landing portion for positioning the holding member assembly. 24. The holding member assembly of claim 23, the running tool bell landing portion comprising: a passive latching member adapted to latch the running tool bell landing portion. 25. The holding member assembly of claim 24, wherein the passive latching member is adapted to unlatch in a first direction and latch in a second direction, rotationally opposite to the first direction. 26. An assembly, comprising: an internal housing, adapted for connection with a rotating control head, the internal housing comprising: a holding member movable between an extended position and a retracted position; and an extendible portion that moves internally of the internal housing, wherein an outer surface of the extendible portion blocks the holding member radially outward in the holding member extended position when the extendible portion is in an extended position. 27. The assembly of claim 26, the holding member comprising: a first portion; and a second portion positioned with the first portion, wherein the extendible portion moves internally of the first portion and the second portion. 28. The assembly of claim 26, wherein the holding member is configured to retract from the extended position to the retracted position at a predetermined force on the assembly. 29. The assembly of claim 26, the internal housing further comprising: a lower portion; and an upper portion, movably positioned above the lower portion and vertically movable relative to the lower portion. 30. The assembly of claim 29, wherein the lower portion defines a holding member chamber, and wherein the holding member is positioned with the holding member chamber. 31. The assembly of claim 26, further comprising: a threaded section, adapted to connect the internal housing to the rotating control head. 32. The assembly of claim 26, further comprising: an elastomer, positioned with the internal housing, wherein the extendible portion blocks the elastomer when the extendible portion is in the extended position. 33. The assembly of claim 32, the internal housing further comprising: a lower portion; and an upper portion, movably positioned relative to the lower portion, wherein the holding member is positioned with the lower portion. 34. The assembly of claim 33, wherein the elastomer is compressible between the lower portion and the upper portion. 35. The assembly of claim 34, wherein the elastomer is extrudable radially outwardly when compressed. 36. The assembly of claim 33, wherein the extendible portion is slidably positioned with the upper portion and the lower portion. 37. The assembly of claim 36, wherein the extendible portion is concentrically interior to the upper portion and the lower portion. 38. The assembly of claim 36, wherein extension of the extendible portion moves the upper portion and the lower portion toward each other while the holding member moves to the holding member extended position, thereby extruding the elastomer. 39. The assembly of claim 36, wherein the upper portion comprising a shoulder; and the extendible portion comprising a shoulder interengageable with the upper portion shoulder, wherein extension of the extendible portion when the upper portion shoulder is engaged with the extendible portion shoulder urges the upper portion toward the lower portion. 40. The assembly of claim 36, further comprising an upper dog member; wherein the upper portion defines an upper dog chamber, wherein the extendible portion defines an upper dog recess adapted to interengage with the upper dog member, and wherein the upper dog member is positioned with the upper dog chamber. 41. The assembly of claim 40, the upper dog member comprising: a first upper dog urging block; a second upper dog urging block; and a central upper dog block, positioned between and urged outwardly by the first upper dog urging block and the second upper dog urging block. 42. The assembly of claim 41, the upper dog member further comprising: a first spring biasing the first upper dog urging block toward the central upper dog block; and a second spring biasing the second upper dog urging block toward the central upper dog block. 43. The assembly of claim 40, wherein the holding member moves from the holding member retracted position to the holding member extended position before extension of the extendible portion disengages the upper dog member. 44. The assembly of claim 40, wherein when the extendible portion retracts from the extendible portion extended position, the upper dog member engages with the upper dog recess before the holding member moves to the holding member retracted position. 45. The assembly of claim 40, wherein the upper dog recess is an annular upper dog recess. 46. The assembly of claim 40, wherein the extendible portion can rotate relative to the upper portion and the lower portion. 47. The assembly of claim 46, wherein the upper dog member can interengage with the extendible portion without rotation of the extendible portion. 48. The assembly of claim 40, wherein the upper dog member is configured to disengage with the upper dog recess when a predetermined downward force is exerted on the extendible portion. 49. The assembly of claim 40, further comprising: a lower dog member, wherein the lower portion defines a lower dog chamber for positioning the lower dog member, and wherein the extendible portion defines a lower dog recess adapted to interengage with the lower dog member. 50. The assembly of claim 49, the lower dog member comprising: a first lower dog urging block; a second lower dog urging block; and a central lower dog block, positioned between and urged outwardly by the first lower dog urging block and the second lower dog urging block. 51. The assembly of claim 50, the lower dog member further comprising: a first spring, biasing the first lower dog urging block toward the central lower dog block; and a second spring, biasing the second lower dog urging block toward the central lower dog block. 52. The assembly of claim 49, the internal housing further comprising: an end portion, connectable to the lower portion, allowing access to the lower dog chamber. 53. The assembly of claim 49, wherein the lower dog recess is an annular lower dog recess. 54. The assembly of claim 49, wherein the lower dog member can interengage with the extendible portion without rotation of the extendible portion. 55. The assembly of claim 49, wherein the lower dog member is configured to disengage with the extendible portion when a predetermined upward force is exerted on the extendible portion. 56. The assembly of claim 49, wherein when the extendible portion extends, the holding member moves to the holding member extended position before the lower dog member interengages with the extendible portion. 57. The assembly of claim 49, wherein when the extendible portion retracts, the holding member moves to the holding member retracted position after the lower dog member disengages with the extendible portion. 58. The assembly of claim 36, the extendible portion comprising: an outer surface, adapted to engage the holding member such that the outer surface blocks the holding member in the holding member extended position when the extendible portion is in the extendible portion extended position. 59. The assembly of claim 36, the extendible portion comprising: a running tool bell landing portion for positioning the assembly. 60. The assembly of claim 59, the running tool bell landing portion comprising: a passive latching member adapted to latch the running tool bell landing portion. 61. The assembly of claim 60, wherein the passive latching member is adapted to unlatch in a first direction. 62. The assembly of claim 26, wherein the holding member comprises: an inner portion; and an outer portion outward of the inner portion. 63. The assembly of claim 62, wherein the inner portion of the holding member is generally trapezoid-shaped. 64. The assembly of claim 62, the outer portion comprising: a generally trapezoid-shaped first section; and a generally trapezoid-shaped extension section, formed with the first section. 65. The assembly of claim 62, the inner portion comprising: an upper edge, slanted radially outwardly, whereby a force on the upper edge urges the holding member radially outward. 66. The assembly of claim 62, the outer portion comprising: an upper edge, slanted radially inwardly, whereby a force on the holding member urges the holding member radially inward. 67. A rotating control head assembly comprising: a rotating control head; an internal housing connected to the rotating control head, comprising: a holding member, movable between an extended position and a retracted position. 68. The assembly of claim 67, the internal housing further comprising: an elastomer, positioned with the internal housing. 69. The assembly of claim 68, wherein the elastomer is extrudable radially outwardly under pressure. 70. The assembly of claim 68, the internal housing further comprising: an upper portion; and a lower portion, movably positioned with the upper portion, wherein the elastomer is positioned between the upper portion and the lower portion. 71. The assembly of claim 70, wherein when the upper portion and the lower portion move together, the elastomer between the upper portion and the lower portion compresses. 72. The assembly of claim 71, wherein the elastomer is extrudable radially outwardly when compressed between the upper portion and the lower portion. 73. The assembly of claim 67, the internal housing further comprising: an upper portion; a lower portion; and an extendible portion connected to the upper portion and the lower portion, the extendible portion having an extended position. 74. The assembly of claim 73, wherein the extendible portion is slidably connected with the upper portion and the lower portion. 75. The assembly of claim 73, wherein the extendible portion is concentrically interior to the upper portion and the lower portion. 76. The assembly of claim 73, wherein the upper portion and the lower portion are movably positionable relative to each other; and wherein extension of the extendible portion urges the upper portion toward the lower portion. 77. The assembly of claim 76, wherein extension of the extendible portion urges the upper portion toward the lower portion while the holding member moves to the holding member extended position. 78. The assembly of claim 76, the internal housing further comprising: an elastomer, positioned between the upper portion and the lower portion. 79. The assembly of claim 78, wherein movement of the upper portion toward the lower portion extrudes the elastomer radially outwardly. 80. The assembly of claim 73, further comprising an upper dog member wherein the upper portion defines an upper dog chamber for positioning the upper dog member, and the extendible portion defines an upper dog recess, adapted to interengage with the upper dog member when the extendible portion is retracted. 81. The assembly of claim 80, the upper dog member comprising: a first upper dog urging block; a second upper dog urging block; and a central upper dog block, positioned between and urged outwardly by the first upper dog urging block and the second upper dog urging block. 82. The assembly of claim 81, the upper dog member further comprising: a first spring, biasing the first upper dog urging block toward the central upper dog block; and a second spring, biasing the second upper dog urging block toward the central upper dog block. 83. The assembly of claim 80, wherein the holding member moves from the holding member retracted position to the holding member extended position before extension of the extendible portion disengages the upper dog member from the upper dog recess. 84. The assembly of claim 80, wherein when the extendible portion retracts from the extendible portion extended position, the upper dog member engages with the upper dog recess before the holding member moves to the holding member retracted position. 85. The assembly of claim 80, wherein the upper dog recess is an annular upper dog recess. 86. The assembly of claim 80, wherein the extendible portion can rotate relative to the upper portion and the lower portion. 87. The assembly of claim 86, wherein the upper dog member can interengage with the extendible portion without rotation of the extendible portion. 88. The assembly of claim 80, wherein the upper dog member is configured to disengage with the upper dog recess when a predetermined downward force is exerted on the extendible portion. 89. The assembly of claim 80, further comprising a lower dog member, wherein the lower portion defines a lower dog chamber for positioning the lower dog member, and the extendible portion defines a lower dog recess for interengagement with the lower dog member. 90. The assembly of claim 89, the lower dog member comprising: a first lower dog urging block; a second lower dog urging block; and a central lower dog block, positioned between and urged outwardly by the first lower dog urging block and the second lower dog urging block. 91. The assembly of claim 90, the lower dog member further comprising: a first spring, biasing the first lower dog urging block toward the central lower dog block; and a second spring, biasing the second lower dog urging block toward the central lower dog block. 92. The assembly of claim 89, the internal housing further comprising: an end portion, connectable to the lower portion, allowing access to the lower dog chamber. 93. The assembly of claim 89, wherein the lower dog recess is an annular dog recess. 94. The assembly of claim 89, wherein the lower dog member can interengage with the extendible portion without rotation of the extendible portion. 95. The assembly of claim 89, wherein the lower dog member is configured to disengage when a predetermined upward force is exerted on the extendible portion. 96. The assembly of claim 89, wherein when the extendible portion extends, the holding member moves to the holding member extended position before the lower dog member interengages with the extendible portion. 97. The assembly of claim 89, wherein when the extendible portion retracts, the holding member moves to the holding member retracted position after the lower dog member disengages with the extendible portion. 98. The assembly of claim 73, wherein the extendible portion blocks the holding member in the holding member extended position when the extendible portion extends. 99. The assembly of claim 73, the extendible portion comprising: an outer surface, adapted to engage the holding member such that the outer surface blocks the holding member in the holding member extended position when the extendible portion extends. 100. The assembly of claim 73, the extendible portion comprising: a running tool bell landing portion for positioning the assembly. 101. The assembly of claim 100, the running tool bell landing portion comprising: a passive latching member, adapted to latch the running tool bell landing portion. 102. The assembly of claim 101, wherein the passive latching member is adapted to unlatch in a first direction. 103. The assembly of claim 73, the internal housing further comprising: a holding member chamber for positioning the holding member. 104. The assembly of claim 103, wherein the holding member chamber is defined by the lower portion and the extendible portion. 105. The assembly of claim 67, wherein the holding member comprises: an inner portion; and an outer portion, attached outwardly to the inner portion, wherein force on the inner portion urges the holding member from the holding member retracted position to the holding member extended position. 106. The assembly of claim 105, wherein the inner portion of the holding member is generally trapezoid-shaped. 107. The assembly of claim 105, the outer portion comprising: a generally trapezoid-shaped first section; and a generally trapezoid-shaped extension section, formed with the first section. 108. The assembly of claim 105, the inner portion comprising: an upper edge, slanted radially outwardly, whereby a force on the upper edge urges the holding member radially outward. 109. The assembly of claim 105, the outer portion comprising: an upper edge, slanted radially inwardly, whereby a force on the holding member urges the holding member radially inward. 110. The assembly of claim 67, wherein the holding member is configured to retract from the holding member extended position to the holding member retracted position at a predetermined force on the assembly. 111. An assembly, comprising: an internal housing, adapted for connection with a rotating control head, the internal housing comprising: an upper portion; a lower portion; and an extendible portion, positioned concentrically interior to the upper portion and the lower portion, the extendible portion having an extended position, wherein the upper portion is movably positioned relative to the lower portion. 112. The assembly of claim 111, wherein the extendible portion is slidably connected with the upper portion and the lower portion. 113. The assembly of claim 111, wherein extension of the extendible portion moves the upper portion toward the lower portion. 114. The assembly of claim 111, the upper portion comprising a shoulder; and the extendible portion comprising a shoulder interengageable with the upper portion shoulder, wherein extension of the extendible portion when the upper portion shoulder is engaged with the extendible portion shoulder urges the upper portion toward the lower portion. 115. The assembly of claim 111, the internal housing further comprising: a holding member positioned within the lower portion, the holding member movable between an extended position and a retracted position; the upper portion comprising an upper dog chamber; and an upper dog member, adapted for positioning with the upper dog chamber, wherein the upper dog member is adapted to interengage with an upper dog recess of the extendible portion when the extendible portion retracts. 116. The assembly of claim 115, the upper dog member comprising: a first upper dog urging block; a second upper dog urging block; and a central upper dog block, positioned between and urged outwardly by the first upper dog urging block and the second upper dog urging block. 117. The assembly of claim 116, the upper dog member further comprising: a first spring, biasing the first upper dog urging block toward the central upper dog block; and a second spring, biasing the second upper dog urging block toward the central upper dog block. 118. The assembly of claim 115, wherein the holding member moves from the holding member retracted position to the holding member extended position before extension of the extendible portion disengages the upper dog member. 119. The assembly of claim 118, wherein when the extendible portion retracts, the upper dog member engages with the extendible portion before the holding member moves to the holding member retracted position. 120. The assembly of claim 115, wherein the upper dog recess is an annular upper dog recess. 121. The assembly of claim 115, wherein the extendible portion can rotate relative to the upper portion and the lower portion. 122. The assembly of claim 121, wherein the upper dog member can interengage with the upper dog recess without rotation of the extendible portion. 123. The assembly of claim 115, wherein the upper dog member is configured to disengage when a predetermined force is exerted on the extendible portion. 124. The assembly of claim 115, further comprising a lower dog member, wherein the lower portion defines a lower dog chamber for positioning the lower dog member, and wherein the extendible portion defines a lower dog recess for interengagement with the lower dog member. 125. The assembly of claim 124, the lower dog member comprising: a first lower dog urging block; a second lower dog urging block; and a central lower dog block, positioned between and urged outwardly by the first lower dog urging block and the second lower dog urging block. 126. The assembly of claim 125, the lower dog member further comprising: a first spring, biasing the first lower dog urging block toward the central lower dog block; and a second spring, biasing the second lower dog urging block toward the central lower dog block. 127. The assembly of claim 124, the internal housing further comprising: an end portion, connectable to the lower portion, allowing access to the lower dog chamber. 128. The assembly of claim 124, wherein the lower dog recess is an annular upper dog recess. 129. The assembly of claim 124, wherein the lower dog member can interengage with the extendible portion without rotation of the extendible portion. 130. The assembly of claim 124, wherein the lower dog member is configured to disengage when a predetermined force is exerted on the extendible portion. 131. The assembly of claim 124, wherein when the extendible portion extends, the holding member moves to the holding member extended position before the lower dog member interengages with the extendible portion. 132. The assembly of claim 124, wherein when the extendible portion retracts, the holding member moves to the holding member retracted position after the lower dog member disengages with the extendible portion. 133. The assembly of claim 115, wherein the extendible portion blocks the holding member in the holding member extended position when the extendible portion is in the extendible portion extended position. 134. The assembly of claim 115, the extendible portion comprising: an outer surface, adapted to engage the holding member such that the outer surface blocks the holding member in the holding member extended position when the extendible portion is in the extendible portion extended position. 135. The assembly of claim 111, the extendible portion comprising: a running tool bell landing portion for positioning the assembly. 136. The assembly of claim 135, the running tool bell landing portion comprising: a passive latching member, adapted to latch the running tool bell landing portion. 137. The assembly of claim 136, wherein the passive latching member is adapted to unlatch in a first direction. 138. A holding member assembly adapted for connection with a bearing assembly of a rotating control head, comprising: an internal housing; and a holding member extending radially outward from the internal housing, comprising: a bore having a first port and a second port formed in the holding member to reduce hydraulic pistoning when moving the holding member assembly. 139. The holding member assembly of claim 138, wherein the holding member blocks movement of the internal housing. 140. The holding member assembly of claim 138, the holding member comprising: a continuous radially outwardly extending upset. 141. The holding member assembly of claim 138, the holding member further comprising: a passive latch member for positioning the holding member assembly. 142. The holding member assembly of claim 141, the passive latch member adapted to unlatch when the holding member assembly is rotated in a first direction and latch when the holding member assembly is rotated in a second direction, rotationally opposite to the first direction. 143. The holding member assembly of claim 141, the passive latch member adapted to latch after positioning the holding member assembly. 144. A holding member assembly adapted for connection with a bearing assembly of a rotating control head, comprising: an internal housing; a holding member extending from the internal housing, comprising: a plurality of bores; and a pressure relief mechanism for closing the plurality of bores. 145. The holding member assembly of claim 144, wherein the pressure relief mechanism is adapted to open the plurality of bores when a fluid pressure exceeds a predetermined pressure. 146. The holding member assembly of claim 144, the pressure relief mechanism comprising: a bottom plate; an upper member; and a spring secured between the upper member and the bottom plate. 147. The holding member assembly of claim 146, wherein the spring allows the bottom plate to open the plurality of bores at a predetermined pressure. 148. An assembly comprising: an internal housing adapted for connection to a rotating control head; and a holding member extending from the internal housing, the holding member comprising: a plurality of bores; and a pressure relief mechanism adapted to open the plurality of bores when a fluid pressure exceeds a predetermined pressure. 149. The holding member assembly of claim 148, the pressure relief mechanism comprising: an annular bottom plate; an annular upper member; and a spring secured between the upper member and the bottom plate to urge the bottom plate against the plurality of bores while allowing the bottom plate to open the plurality of bores at the predetermined pressure. 150. A holding member assembly adapted for connection with a bearing assembly of a rotating control head, comprising: an internal housing; and a holding member extending from the internal housing, comprising: an opening in the holding member adapted to reduce hydraulic pistoning when moving the holding member assembly; and a pressure relief mechanism for closing the opening. 151. The holding member assembly of claim 150, wherein the opening is a bore. 152. The holding member assembly of claim 150, the holding member further comprising: a plurality of openings in the holding member to reduce hydraulic pistoning when moving the holding member assembly. 153. The holding member assembly of claim 150, the pressure relief mechanism comprising: a bottom plate, adapted to close the opening; an upper member; and a spring positioned between the upper member and the bottom plate. 154. The holding member assembly of claim 150, wherein the pressure relief mechanism is adapted to open the opening when a fluid pressure exceeds a predetermined pressure.