FIELD: oil producing industry.
SUBSTANCE: according to proposed method protection of discharge pipelines of oil well from solidification at abnormal oil fields, when well is shut down, annulus gate valve on wellhead equipment is opened, liquid from discharge pipeline is drained by gravity into well annulus space, and liquid is replaced by annulus gas. Before bringing well into production, annulus gate valve is closed, and communication of well annulus space with discharge pipeline through check valve installed on line connecting discharge pipeline with annulus space is provided.
EFFECT: improved efficiency of protection of discharge pipelines.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WELL HEAD FOR PRESSURE RELEASE | 2019 |
|
RU2720714C1 |
| METHOD OF WATER-PRODUCING WELL OPERATION | 2006 |
|
RU2332558C2 |
| METHOD FOR MAINTAINING RESERVOIR PRESSURE OF AN OIL WELL | 2018 |
|
RU2684791C1 |
| METHOD FOR DOWN-HOLE TREATMENT OF GASLIFT WELL PRODUCT | 2012 |
|
RU2503801C2 |
| PROCESS AND GEAR FOR DEVELOPMENT AND CLEARING OF FACE ZONE OF WELLS BY PULSE DRAINAGE | 1999 |
|
RU2159326C1 |
| OIL WITH HIGH GAS CONTENT PRODUCTION METHOD FROM WELLS AND DEVICE FOR ITS IMPLEMENTATION | 2017 |
|
RU2667182C1 |
| METHOD OF FORMATION GEOMECHANICAL IMPACT | 2018 |
|
RU2680158C1 |
| METHOD OF OIL WITHDRAWAL FROM HIGH GAS CONTENT WELL AND ELECTROLOADING EQUIPMENT FOR IT | 2007 |
|
RU2380521C2 |
| METHOD FOR PRODUCTION AND TRANSPORTATION OF WELL PRODUCTS AND GAS | 2021 |
|
RU2767626C1 |
| METHOD AND DEVICE FOR CLEARING WELLS FROM PARAFFIN-RESIN DEPOSITS | 1994 |
|
RU2085706C1 |
