Thomas P Falgout

20030161218, Aug 28, 2003

Jun 28, 2001

09/892682

Thomas Falgout - Lafayette LA, US

G04F008/00
G04F010/00

368/005000

A timer is enclosed in a pressure tight enclosure which is attached to or is part of the motor rotor. Rotation of the rotor is sensed and the timer is turned on when the rotor is turning and is turned off when the rotor is idle. The version usable in motors of the progressing cavity type can power the timer, and provide timer control.

20060175094, Aug 10, 2006

Feb 5, 2005

11/051841

Thomas Falgout - Lafayette LA, US

E21B 7/04

175061000, 175073000

The drill string is fitted for drilling activity in the formation expected, including a jet nozzle equipped drill head, and a near bit kick sub. The drill string is deflected to change the progressing well bore to a preferred direction. After the change in well bore direction is accomplished by jetting, the kick sub is straightened and drilling proceeds along the new well bore center line. Ideally, the kick sub responds to direction from the surface and produces a change in drilling fluid pressure at the surface to indicate which mode, straight or deflected, is being carried out down hole.

48077097, Feb 28, 1989

Oct 6, 1986

6/915660

Thomas E. Falgout - Youngsville LA
William N. Schoeffler - Lafayette LA

Pioneer Fishing and Rental Tools, Inc. - Youngsville LA

E21B 100
E21B 31113

175296

A hydraulic drill string jar is powered and actuated by drilling fluid pressure controlled from the earth surface. By selective manipulation of drilling fluid flow, the jar can be conditioned to operate in drilling mode to avoid activation of the jars while normal drilling and fluid flow activities take place. By different fluid flow manipulations, the jar is conditioned to operate in the jarring mode. In the jarring mode, the jars will axially shock the drill string each time the flow rate is reduced below a preselected amount and then increased to a higher preselected amount.

57754446, Jul 7, 1998

Oct 23, 1996

8/735738

Thomas E. Falgout - Lafayette LA

E21B 1707

175322

The housing of the orienting motor serves as a length of pipe string and rotates the lower end relative to the upper end. Rotation is in preselected increments each time the rate of fluid flow in the pipe string is changed between preselected limits. Once rotated an increment the housing is rotationally locked as long as flow rate is maintained greater than a preselected amount. When fluid flow is stopped, the actuation system resets, in time, to the starting position but a one way clutch retains the previous rotational relationship between opposite ends of the housing. Resetting time is adjustable to permit a preselected activity period before flow restart without further changes in the orienting action.

51689430, Dec 8, 1992

Jun 24, 1991

7/719357

Thomas E. Falgout - Lafayette LA

E21B 708

175 74

The sub, usable as a length element of a drill string which may include a drilling motor body, comprises three generally tubular members. Two members, each having means to attach to a continuing drill string, have threaded boxes positioned in opposition. A third member is a double ended threaded, shoulderless, pin threadedly extending into the boxes with box faces in contact when the sub is assembled. One box, and the mating pin end, have threads coarser than the finer threads in the other box and on it's mating pin end. Axial position adjustment of the pin causes the abutting box faces to change rotational relationship, thus changing the rotational relationship of axially spaced drill string elements separated by the sub. If the sub is to be used to deflect the drill string centerline, the double ended pin and the threaded boxes have a centerline tilted a small angle from the centerline of the first two members. In one configuration the assembly has, preferably, both end centerlines on one line.

52057895, Apr 27, 1993

Oct 24, 1991

7/782090

Thomas E. Falgout - Lafayette LA

F16D 318

464157

A modified jaw type shaft coupling has two opposed members arranged to allow limited flexure about a point that is the geometric center of mating spherical surfaces, a concave surface on one member and a mating convex surface on the other member. One member is attached to each shaft to be rotationally and axially coupled. The jaws on one coupling member have lugs that extend radially inward to axially entrap a larger flange attached to the other coupling member. The flange has notches to allow the flange to axially traverse the lugs. The flange is then rotated relative to the lugs to allow the flange to oppose the lugs. The flange is secured to the other coupling member after the coupling members are axially moved together to allow the jaws to interdigitate to provide rotational coupling. The convex and concave surfaces cooperate to accept axial compressive loads and the flange and lugs prevent axial separation.

47702583, Sep 13, 1988

Apr 27, 1987

7/042852

Thomas E. Falgout - Youngsville LA

E21B 1710

175 73

A length of drill string, or a sub, functions as a body to which an encircling sleeve is rotationally and axially secured. The sleeve is arranged to permit some radial movement on the body and is spring biased in one radial directiion. A radial projection of some axial length extends from the sleeve in the biased direction to engage the well bore wall. During drill string rotation, the projection engages a near side wall more forcefully than other parts of the well bore periphery. The forceful engagement between projection and wall deranges the tendency for a curved drill string centerline to lie in a stationary plane when the drill bit has a tendency to depart from an original course while drilling. The bias allows the sleeve to be pushed toward a more centralized position on the body but the fluid damping inherent by changing clearances between sleeve and body, while the tool is immersed in drilling fluid, retards the centralizing movement. The damping effect is influenced by drill string rotation and the rotation speed can be controlled from the surface.

49287761, May 29, 1990

Oct 31, 1988

7/264617

Thomas E. Falgout - Youngsville LA

E21B 708

175 45

A drill string deflection tool is arranged to function as a segment of drill string. An upper and a lower portion telescope together to form a mid-section with limited telescoping movement and limited angular deflection of the axes of the opposite ends. Axial load compresses the tool and a cam and fulcrum arrangement deflects the tool when it is axially compressed. The tool extends axially when pulled in tension and the axis becomes straight. Drilling fluid pressure acts on rams in the tool to lock it in whatever state exists when pressure is applied. The locking mechanism acts upon the drilling fluid channel to cause a pressure drop, detectable at the surface, that indicates the state of the tool downhole.