A single-pipe flow wellhead combination device

Abstract

The invention relates to the technical field of oilfield exploitation, and discloses a single-pipe flow wellhead combination device, including a wellhead device, a flange plate is fixedly installed on the bottom of the wellhead device, and a bottom plate is sleeved on the outer side of the flange plate. A protective frame is fixedly installed on the upper middle side of the bottom plate. The single-pipe flow wellhead combination device is provided with a bottom plate at the bottom of the wellhead device, and a protective frame is provided on the upper part of the bottom plate. In the main part, the side insulation frame is located at the side branch of the wellhead device, which is convenient for the wellhead device to be protected and supported under the protection of the protective frame, the main insulation frame and the side insulation frame, so as to avoid the shaking and tilting of the wellhead device. The rack has a heating function, and the wellhead device is kept warm and antifreeze through the heating function of the main thermal rack and the side thermal rack, so as to ensure the smooth flow of the wellhead device and the oil pipeline.

Description

technical field [0001] The invention relates to the technical field of oilfield exploitation, in particular to a single-pipe flow wellhead combination device. Background technique [0002] At present, the most widely known wellhead devices are multi-layer stacked wellhead devices. During the drilling process of this traditional wellhead device, it is necessary to replace blowout preventers of different specifications and perform related operations for each layer installed. It consumes a lot of manpower and materials, has low work efficiency and long cycle. In the existing oil recovery production process, a Christmas tree is installed at the head of the oil well, and various pipelines are controlled by valves to meet the requirements of production. , The installation of various valves is scattered, the floor area is large, the production management is difficult, the workload is large, and the phenomenon of oil theft is serious. At present, the process wellhead combination val...

AI Technical Summary

Problems solved by technology

[0002] At present, the most widely known wellhead devices are multi-layer stacked wellhead devices. During the drilling process of this traditional wellhead device, it is necessary to replace blowout preventers of different specifications and perform related operations for each layer installed. It consumes a lot of manpower and materials, has low work efficiency and long cycle. In the existing oil recovery production process, a Christmas tree is installed at the head of the oil well, and various pipelines are controlled by valves to meet the requirements of production. , The valves are installed scattered, occupy a large area, production management is difficult, the workload is heavy, and the phenomenon of oil theft is serious. At present, the process wellhead combination valve is generally used

[0003] In the oil production process of the oilfield, in order to prevent the crude oil flowing through the oilfield wellhead device from sticking or freezing, it is necessary to insulate the pipeline of the oilfield wellhead single-pipe device to ensure the smooth flow of the oil pipeline. External heating type, that is, the method of installing electric heating tape on the pipeline in front of the single-pipe device to ensure the fluidity of the crude oil entering the single-pipe device, so that the crude oil transported will not solidify in the pipeline due to the low temperature. The problem with the method is that it is unsafe, consumes a lot of power, ages quickly, and is not anti-theft

Images