Coupling formula of being located is proration tubular column in pit

• Main Authors: Chen Yong, Wei Yaming, Xiao Shuqin, Yang Xudong, Fu Gangdan, Cheng Xiaoli, Han Qianghui, Liu Shuangquan
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2016
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model belongs to the technical field of the oil field gas production, a special use of in particular to natural gas extraction in -process is the proration device in the pit, and specific coupling formula of being located is proration tubular column in pit that says so before the installation, changes the proration mouth according to the gas well proration at any time, transfer produce convenient, during the device installation, utilize the feasible shear pin of giving up of inertial force easily to cut, the erection seat seals easily, installation back utilizes gas well pit shaft pressure to make the sealing drum reexpansion, and the device is sealed reliable, when demolising, the jarring that makes progress makes fishing neck upwards break away from and is located the claw, cuts the deblocking pin simultaneously, and the sealing drum deformation recovery is easily demolishd, is applicable to the proration in the pit of fine and close gas field development. 本实用新型属于油田采气技术领域，特别涉及天然气开采过程中的种专用井下配产装置，