钻井业已经公认,采用聚晶人造金刚石刀头来制造高性能的钻头是可行的。根据单刀头实验室试验的结果,正在发展数种钻地热井和普通井的新型钻头。同时,发展了一种将刀头附着到钻头体上的新的焊接工艺,而由此制造出的几只钻头,获得了预期的试验结果。 It is well recognized in the drilling industry that the use of polycrystalline diamond bits to make high performance drill bits is feasible. Based on the results of a single-head laboratory test, several new drill bits for geothermal and conventional wells are being developed. In the meantime, a new welding process has been developed that attaches the tool bit to the bit body, and the resulting number of bits produces the desired test results.