1
Mark D Mueller, Frank L Jones, Julio M Quintana, Kenneth E Ruddy, Michael G Mims: Well casing flotation device and method. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, January 26, 1993: US05181571 (213 worldwide citation)

A ported float shoe (5) and a landing collar (16) are attached at a first end of a portion of a casing string (4) and a sliding air trapping insert (20) is attached at the other end. The air trapping insert (20) includes a fluid flow passageway (24) blocked by a plug (22) attached by shear pins to t ...


2
Mark D Mueller, Julio M Quintana, Robert M Hinkel: Coiled tubing drilling apparatus and method. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, March 8, 1994: US05291956 (110 worldwide citation)

A low-cost method drilling and completing wells attaches a non-rotating jet drilling tool to coiled tubing. After drilling, the tubing portion outside the well is cut and the remaining tubing becomes the liner or casing for the well. By also using a residual bend remover, centralizers, and injecting ...


3
Mark D Mueller, Frank L Jones, Julio M Quintana, Kenneth E Ruddy, Michael G Mims: Well casing flotation device and method. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, June 2, 1992: US05117915 (93 worldwide citation)

A ported float shoe (5) and a landing collar (16) are attached at a first end of a portion of a casing string (4) and a sliding air trapping insert (20) is attached at the other end. The air trapping insert (20) includes a fluid flow passageway (24) blocked by a plug (22) attached by shear pins to t ...


4
William M Neill, Fred Aminzadeh, A M Sam Sarem, Julio M Quintana: Guided oscillatory well path drilling by seismic imaging. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, September 7, 1993: US05242025 (57 worldwide citation)

Real-time monitoring of a target production zone is followed by an oscillatory drilling path to create a borehole having improved zone drainage capability. Real-time monitoring uses geophones placed in adjacent wells or the well being drilled. The drilling process itself generates the seismic signal ...


5
Julio M Quintana: Pressure assisted running of tubulars. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, May 17, 1994: US05311954 (41 worldwide citation)

A pressure actuated, telescoping subassembly is supported by a pipe string to axially move an attached member within a wellbore. Increasing fluid pressure to the subassembly actuates a telescoping action, axially moving the attached member but not the supporting pipe string. Motion can be used durin ...


6
Julio M Quintana: Pressure assisted running of tubulars. Union Oil Company of California, Gregory F Wirzbicki, William O Jacobson, April 27, 1993: US05205365 (13 worldwide citation)

A pressure actuated, telescoping subassembly is supported by a pipe string to axially move an attached member within a wellbore. Increasing fluid pressure to the subassembly actuates a telescoping action, axially moving the attached member but not the supporting pipe string. Motion can be used durin ...