| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: invention is related to equipment of oil and gas production industry. Device body is arranged in the form of pipe along section of well locking equipment, which is equipped with upper and lower flanges. Between flanges there are radial holes provided in body, which are embraced with rigidly fixed channeled annular belt. Cavity of channeled belt via check valve communicates with pipeline for supply of fire extinguishing medium, for instance, water. Device is mounted in operating wellhead. In case of surface pipeline damage static pressure in device pipe sharply drops, and this opens check valve. This or that fire extinguishing composition that forms nonburning emulsion mixture together with product is sucked through channeled belt and radial holes in device pipe into flow of blowing product. ^ EFFECT: expansion of application field both on open end of well and in structural equipment of operated wells, in section of surface and manifold pipelines. ^ 2 dwg |
