While drilling data relay communication method for gas drilling

The invention discloses a while drilling data relay communication method for gas drilling. The method includes the following steps: (1) preparing a plurality of sections of relay communicators; and (2) distributing and arranging the sections of the relay communicators along the axial direction. The detailed installing steps include that installing positions of alternative relay communicators are in effective communication range of each other, and signal transmission of each section of relay communicator is achieved through step-by-step transmission and step-skipping transmission. By selecting the installing positions of the sections of relay communicators, signal transmission of each section of relay communicator remains a step-by-step chain type transmission mode, the step-skipping alternative transmission mode is added, so that after any one relay communicator fails in a signal transmission path, a whole signal transmission path can still be smooth and free of obstacles, normal operation of a whole data transmission system is guaranteed, smooth operation of oil and gas exploitation is guaranteed, the reliability is high, and the practicality is good.