Solenoid guide system for horizontal boreholes

Details Solenoid guide system for horizontal boreholes Solenoid guide system for horizontal boreholes

1994-11-07

1996-05-07

Dang, Hoang C.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

175 61, 175 62, 324326, 324346, E21B 704, E21B 47022

Patent

active

055137105

ABSTRACT:
A method and apparatus for drilling a borehole under an obstacle including placing a solenoid on the surface of the earth at the far side of the obstacle, near a preselected borehole exit location. A drilling assembly at an entry location on the near side of the obstacle is driven to produce a borehole which is directed under the obstacle toward the exit location. Initially, guidance of the drilling assembly is by conventional survey techniques, but when the borehole moves to within about 100 meters of the solenoid, the solenoid magnetic field is used to guide the drilling operation.

REFERENCES:
patent: 2521745 (1950-09-01), Pope
patent: 3406766 (1968-10-01), Henderson
patent: 3589454 (1968-12-01), Coyne
patent: 3731752 (1976-05-01), Schad
patent: 3853185 (1974-12-01), Dahl et al.
patent: 4016942 (1977-04-01), Wallis, Jr. et al.
patent: 4072200 (1978-02-01), Morris et al.
patent: 4646277 (1987-02-01), Bridges et al.
patent: 4710708 (1987-12-01), Rorden et al.
patent: 4875014 (1989-10-01), Roberts
patent: 4955439 (1990-09-01), Kinnan
patent: 5002137 (1991-03-01), Dickinson et al.
patent: 5165490 (1992-11-01), Nosaka
patent: 5182516 (1993-01-01), Ward et al.
patent: 5258755 (1993-11-01), Kuckes
patent: 5305212 (1994-04-01), Kuckes
patent: 5322391 (1994-06-01), Fink
patent: 5363926 (1994-11-01), Mizuno

Affiliated with

Also associated with

Rating

Solenoid guide system for horizontal boreholes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solenoid guide system for horizontal boreholes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solenoid guide system for horizontal boreholes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1221163