Small-diameter sleeve window sidetrack drilling traction type well fixing method
A sidetracking and traction technology, which is applied in the field of traction cementing in slim hole casing windowing sidetracking wells, can solve the problems of high cost, polluted oil and gas layers, and poor quality, so as to prevent fracturing and overcome the annular gap Small, the effect of improving the cementing quality
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[0026] In order to make the technical features, objectives and beneficial effects of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the embodiments. However, what has been described is only a part of the embodiments of the present invention, not all of the embodiments, and should not be construed as limiting the implementation scope of the present invention.
[0027] A slimhole casing sidetracking traction cementing method, the specific operation steps are:
[0028] a. The upper part of the drill string I5 is connected to the cement head, the lower part of the drill string I5 is connected to the intelligent short-circuit circulation nipple 6a, the lower part of the intelligent short-circuit circulation nipple 6a is connected to the drill string II7, the lower part of the drill string II7 is connected to the liner hanger 8, and the lower part of the liner hanger 8 Connect the casing string, the ...
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