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| Number | Title | Issue Date |
| 4349204 | Non-extruding inflatable packer assembly An extrusion resistant expansible element for use as a sealing element or packer in a subterranean well bore. The expansible element comprises an inner elastomeric sleeve to which fluid pressure is internally applied to produce the expansion forces. The i... | 09/14/1982 |
| 4341266 | Pressure operated test tool A test tool is provided for testing the production capabilities of a preselected formation subsequent to the drilling of a subterranean well. The test tool is part of a testing string which incorporates a packer which may be releasably engaged in the casi... | 07/27/1982 |
| 4225264 | Method and apparatus for coupling engagement of misalignable flanges Apparatus and method are provided for coupling engagement of misalignable flanges disposed around the exterior of first and second tubular ends which may be initially rotatably or pivotally disposed with respect to one another, each of the flanges having ... | 09/30/1980 |
| 4212355 | Tubing manipulated test valve and latch assembly A test valve assembly is provided which is adapted to be lowered on a tubular string between upper and lower tubular sections into position within a blowout preventer stack at the upper end of a well bore of a subterranean oil or gas well. The apparatus h... | 07/15/1980 |
| 4212562 | Method and apparatus for leveling templates for offshore subterranean wells A method and apparatus are disclosed for leveling a relatively massive template structure which is positionable on the ocean bottom in proximity to one or more sites of subterranean wells. Since the template is primarily utilized to mount or guide later a... | 07/15/1980 |
| 4195349 | Self calibrating environmental condition sensing and recording apparatus Apparatus for measuring and recording environmental conditions in a deep bore hole using a down hole gauge including pressure and temperature sensors and data processing elements is disclosed. A pressure transducer such as a Bourdon tube is provided for m... | 03/25/1980 |
| 4183698 | Wiper, grouting seal and diaphragm apparatus The present invention provides a wiper, grouting seal and diaphragm apparatus for use on a tubular sleeve of a structure wherein the sleeve receives a piling. The apparatus has a housing with a bore therethrough. A manifold seal extends interior of and ci... | 01/15/1980 |
| 4175592 | Tubular member seal enclosing and enclosure releasing apparatus The invention incorporates a combination tubular member seal enclosing and enclosure releasing apparatus having an elastomeric sealing means with interior and exterior edges. The exterior edge is disposed around one end of the tubular member for sealing a... | 11/27/1979 |
| 4157535 | Down hole pressure/temperature gage connect/disconnect method and apparatus A method and an apparatus for connecting a gage to an oil well pump power cable for transmitting pressure and temperature data to a surface recorder whereby the gage can be selectively disconnected when it is desired to test the insulation integrity of th... | 06/05/1979 |
| 4077224 | Method and apparatus for grouting an offshore structure Inflatable seal means are provided on the jacket or sleeve of a supporting leg of an offshore structure to seal off therebetween and a piling which the jacket surrounds. The seal means is expanded inwardly to sealingly engage the piling and water is then ... | 03/07/1978 |
| 4078232 | Optical analog to digital converter a Bourdon tube is situated down hole in an oil well or the like, and has attached thereto a coded wheel which rotates an amount determined by the sensed down hole pressure. The wheel has a number of transparent and opaque concentric bands thereon which fo... | 03/07/1978 |
| 4063427 | Seal arrangement and flow control means therefor An inflatable reinforced sealing element for positioning on a jacket to seal off the space between the jacket and a piling in the jacket, with the jacket and piling being associated with the supporting leg of an offshore structure. Control means are provi... | 12/20/1977 |
| 4063421 | Grouting system and arrangement for offshore structure An inflatable seal is first effected adjacent the lower end of the annular space between a piling and a jacket of a supporting leg of an offshore structure and thereafter grouting material is inserted into the annular space between the jacket and the pili... | 12/20/1977 |
| 4052861 | Inflatable securing arrangement An inflatable securing arrangement includes support means having a longitudinally extending annular elastomer body bonded thereto. An annular reinforcing is also secured to the support means and extends longitudinally thereof, and gripping means are carri... | 10/11/1977 |
| 4050731 | Shifting apparatus Apparatus is provided having particular use in conjunction with setting of longitudinally extendable piling units for anchoring an offshore platform for subsequent use in drilling, production, completion and workover of a subterranean well. The apparatus ... | 09/27/1977 |
| 3968691 | Environmental condition sensing apparatus A Bourdon tube is situated down hole in an oil well or the like, and has attached thereto a coded wheel which rotates an amount determined by the sensed down hole pressure. The wheel has a number of transparent and opaque concentric bands thereon which fo... | 07/13/1976 |
| 3958642 | Quick latching drill pipe blowout preventer and method of use thereof A blowout preventer for the drill string of a subterranean well which is quickly and sealingly latchable to the upper tool joint of the string in the event of a well blowout. The blowout preventer basically comprises first and second tubular housing membe... | 05/25/1976 |
| 3941190 | Well control apparatus A tool for running on a well string such as a drill string in a well bore carries inflatable packer means to close off the well bore adjacent the tool. The tool includes a body having a longitudinal bore therethrough with seating means and shock absorbing... | 03/02/1976 |
