Drill stem for deep drillings
First Claim
1. Drilling pipe (10) for a drill column (3) for deep wells, having a drilling pipe body (12) made from an electrically conductive material, at least one electrical pipe conductor (7a) being passed through the drilling pipe body (12), the pipe conductor (7a) being connected to a pipe contact connection (13) provided at one end on the drilling pipe body (12), and the pipe conductor (7a) and the pipe contact connection (13) being electrically insulated from the drilling pipe body (12), characterized in that the pipe conductor (7a) is fixed to the pipe inner side (14), and in that a longitudinal groove (15) for at least one pipe conductor (7a) is provided on the pipe inner side (14) of the drilling pipe body (12).
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Accused Products
Abstract
The invention relates to a drill column (3) for deep wells, having a plurality of drilling pipes (10) having drilling pipe bodies (12) made from an electrically conductive material and a plurality of bushes (11) having bush bodies (27) made from an electrically conductive material. In order to obtain information from the drilling site quickly and precisely, provision is made for one electric pole to be formed by the drill column body comprising the drilling pipe bodies (12) and the bush bodies (27) and for the other electric pole to be formed by at least one conductor (7), which is electrically insulated from the drill column body and is arranged within the drill column body, with the result that transfer of both electrical energy and data is possible.
27 Citations
28 Claims
- 1. Drilling pipe (10) for a drill column (3) for deep wells, having a drilling pipe body (12) made from an electrically conductive material, at least one electrical pipe conductor (7a) being passed through the drilling pipe body (12), the pipe conductor (7a) being connected to a pipe contact connection (13) provided at one end on the drilling pipe body (12), and the pipe conductor (7a) and the pipe contact connection (13) being electrically insulated from the drilling pipe body (12), characterized in that the pipe conductor (7a) is fixed to the pipe inner side (14), and in that a longitudinal groove (15) for at least one pipe conductor (7a) is provided on the pipe inner side (14) of the drilling pipe body (12).
- 5. Drilling pipe (10) for a drill column (3) for deep wells, having a drilling pipe body (12) made from an electrically conductive material, at least one electrical pipe conductor (7a) being provided, the pipe conductor (7a) being connected to a pipe contact connection (13) provided at one end on the drilling pipe body (12), and the pipe conductor (7a) and the pipe contact connection (13) being electrically insulated from the drilling pipe body (12), characterized in that the pipe conductor (7a) is tubular, in that the pipe conductor (7a) is passed through the drilling pipe body (12) and/or sheaths the drilling pipe body (12), and in that, preferably, the pipe conductor (7a) and the drilling pipe body (12) have essentially the same linear thermal expansion behaviour.
- 13. Bush (11) for a drill column (3) for deep wells, having a bush body (27) made from an electrically conductive material, at least one electrical bush conductor (7b) being passed through the bush body (27), the bush conductor (7b) being connected to a bush contact connection (28) provided at one end on the bush body (27), and the bush conductor (7b) and the bush contact connection (28) being electrically insulated from the bush body (27), characterized in that the bush conductor (7b) is fixed to the bush inner side (29), and in that a longitudinal groove (30) for at least one bush conductor (7b) is provided on the bush inner side (29) of the bush body (27).
- 18. Bush (11) for a drill column (3) for deep wells, having a bush body (27) made from an electrically conductive material, at least one electrical bush conductor (7b) being passed through the bush body (27), the bush conductor (7b) being connected to a bush contact connection (28) provided at one end on the bush body (27), and the bush conductor (7b) and the bush contact connection (28) being electrically insulated from the bush body (27), characterized in that the bush conductor (7b) is tubular, in that the bush conductor (7b) is passed through the bush body (27) and/or sheaths the bush body (27), and in that, preferably, the bush conductor (7b) and the bush body (27) have essentially the same linear thermal expansion behaviour.
Specification