1
Urbanosky Harold J: Methods and apparatus for testing earth formations. Schlumberger Technology Corporation, Archambeau Jr Ernest R, Sherman William R, Moore Stewart F, January 14, 1975: US3859851 (126 worldwide citation)

In the representative embodiments of the new and improved methods and apparatus for testing earth formations disclosed herein, fluid-admitting means are placed into sealing engagement with a potentially-productive earth formation. A first test chamber coupled to the fluid-admitting means is then slo ...


2
Nutter Benjamin P: Pressure controlled drill stem tester with reversing valve. Schlumberger Technology Corporation, Moseley David L, Sherman William R, Moore Stewart F, July 16, 1974: US3823773 (73 worldwide citation)

Methods and apparatus for testing offshore wells with testing equipment operated in response to changes in the pressure of fluids in the well annulus, wherein the test valve is opened and closed in response to such pressure changes to alternately flow and shut-in the formations, and a reversing valv ...


3
Bell William T: Methods and apparatus for testing earth formations composed of particles of various sizes. Schlumberger Technology Corporation, Archambeau Jr Ernest R, Sherman William R, Moore Stewart F, February 11, 1975: US3864970 (51 worldwide citation)

In the representative embodiments of the new and improved methods and apparatus disclosed herein for testing earth formations of differing compositions, fluid-admitting means carrying a selectively-sized filter of a unique design are selectively extended into sealing engagement with a potentially-pr ...


4
Nutter Benjamin P: Inflatable packer drill stem testing apparatus. Schlumberger Technology Corporation, Moseley David L, Sherman William R, Moore Stewart F, April 8, 1975: US3876000 (42 worldwide citation)

In accordance with an illustrative embodiment of the present invention, a drill stem testing apparatus that utilizes inflatable packer elements to isolate an interval of the borehole includes a uniquely arranged pump that is adapted to supply fluids under pressure to the elements in response to upwa ...


5
Poilleux Jean Loup: Fiber optics distance converting technique. Compteure Schlumberger, Sherman William R, Moore Stewart F, February 19, 1974: US3792928 (38 worldwide citation)

According to an illustrative embodiment of the invention, a technique is described for producing signals varying as a function of the distance of a surface relative to a reference face, comprising transmitting a beam of coherent light to an admitting end of a fiber optic bundle to transmit light to ...


6
Kisling III James W: Drill stem testing methods and apparatus utilizing inflatable packer elements. Schlumberger Technology Corporation, Moseley David L, Sherman William R, Moore Stewart F, April 8, 1975: US3876003 (36 worldwide citation)

Methods and apparatus for isolating a well bore interval utilizing spaced inflatable packer elements and a pump suspended in the well on a pipe string. The pump includes an inner member connected to the packer elements and an outer member connected to the pipe string, said members defining a working ...


7
Urbanosky Harold J, Whitten Frank R: Methods and apparatus for testing earth formations. Schlumberger Technology Corporation, Archambeau Jr Ernest R, Sherman William R, Moore Stewart F, June 4, 1974: US3813936 (36 worldwide citation)

In the representative embodiments of the new and improved methods and apparatus for testing earth formations disclosed herein, fluid-admitting means are placed into sealing engagement with a potentially-producible earth formation and selectively-operable valve means on the fluid-admitting means are ...


8
Young David E: Subsurface safety valve apparatus. Schlumberger Technology Corporation, Moseley David L, Sherman William R, Moore Stewart F, February 11, 1975: US3865141 (35 worldwide citation)

A surface controlled, subsurface safety valve includes a tubular housing carrying a hinged flapper valve element that is moved to open position by a valve actuator sleeve. The sleeve is moved under the thrust of a coil spring that is compressed in response to downward movement of a hydraulically ope ...


9
Davis Billy W: Method for making a foam seismic streamer. Schlumberger Technology Corporation, Moseley David L, Sherman William R, Moore Stewart F, August 19, 1975: US3900543 (34 worldwide citation)

A neutrally buoyant seismic hydrophone streamer is constructed by extruding a syntactic foam material comprising an elastomeric material and gas filled microspheres onto a central stress member to form an elongated streamer member. The streamer may then be covered with a suitable water and oil resis ...


10
Whitfill Jr William A: Method for pre-stressing armored well logging cable. Schlumberger Technology Corporation, Moseley David L, Moore Stewart F, Sherman William R, January 8, 1974: US3784732 (34 worldwide citation)

The particular embodiment described herein as illustrative of the invention relates to method and apparatus for use in manufacturing pre-stressed well logging cables. By use of the present invention, the occurrence of undesirable permanent stretch while the cable is in use will be reduced. The metho ...