Rapid winding-unwinding device for water supply pipeline for fracturing for mountain land

Abstract

The invention discloses a rapid winding-unwinding device for a water supply pipeline for fracturing for a mountain land. The rapid winding-unwinding device is composed of two parts, that is, a large pipeline winding-unwinding system and a small pipeline winding-unwinding system, wherein the small pipeline winding-unwinding system comprises a four-wheel motorcycle, a small pipeline winding-unwinding frame, a motor, a battery, a small pipeline guide support, a power transmission pair and a pipeline winding-unwinding transmission assembly; and the large pipeline winding-unwinding system comprises a tractor, a power source, a control mechanism, a large pipeline guide mechanism, a large pipeline winding-unwinding frame and a hoisting mechanism. According to the rapid winding-unwinding device disclosed by the invention, a plurality of pipeline storage frames are arranged on the four-wheel motorcycle, the rear of the four-wheel motorcycle is used for dragging the winding-unwinding device, many pipelines can be arranged in the smallest space, and the need of laying and recovery for different types of pipelines is met, so that the labor intensity of personnel is lowered, and laying efficiency for the pipelines is increased.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration and development, in particular to a quick retractable device for water supply pipelines used for coalbed methane / shale gas fracturing in mountainous or hilly areas. Background technique [0002] With the development of oil and gas fields, the development of unconventional natural gas resources such as shale gas and coalbed methane is also increasing. Among them, large-scale clean water fracturing is the key to transforming shale gas reservoirs. The shale gas reservoirs undergoing hydraulic fracturing Only in this way can the productivity increase be realized, and the average amount of water needed to fracture a single well is currently 0.76×10 4 ~2.39×10 4 t, 20% to 85% of which remain underground after fracturing. In North America, where shale gas is most widely developed, its shale gas wells are located in plains, rich in hydraulic resources, and easy to get water. However, compar...

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Problems solved by technology

[0002] With the development of oil and gas fields, the development of unconventional natural gas resources such as shale gas and coalbed methane is also increasing. Among them, large-scale clean water fracturing is the key to transforming shale gas reservoirs. The shale gas reservoirs undergoing hydraulic fracturing Only in this way can the productivity increase be realized, and the average amount of water needed to fracture a single well is currently 0.76×10 4 ~2.39×10 4 t, 20% to 85% of which remain underground after fracturing. In North America, where shale gas is most widely developed, its shale gas wells are located in plains, rich in hydraulic resources, and easy to get water. However, compared with North America, China’s The geological conditions for shale gas development are more special, the burial range is deeper, and the formation age is older. In addition, China's shale gas is mostly distributed in hilly and mountainous areas such as Sichuan, Guizhou, Xinjiang, and Songliao, where water resources are scarce and transportation is inconvenient. To meet the demand for water intake, two methods of water tanker transportation and pipeline transportation are mostly used at present. The traditional water tanker transportation of water has problems of low efficiency, large production investment, and high management costs, and roads in mountainous areas for shale gas development are common. It is narrow and the roadbed strength is limited. It is prone to problems if it is rolled over by heavy vehicles for a long time, and it is difficult to meet the water demand of large-scale fracturing.

Some customers have also started to lay hoses to pump water from a few kilometers away to the well site. However, the way of laying hoses is currently mostly the pipelines on the pickup truck in front, and then manually lowered, transported and laid, which consumes a lot of physical strength for the workers. large, and prone to safety accidents, and some use the front end of the construction vehicle to simply fix the self-made hose drum and drive backwards to lay the hose, such as the Chinese patent "Crawler Pipe Laying and Collecting Machine" with the authorization number CN205709587U. The size of the tracked vehicle is relatively large, and the requirements for the width of the road are relatively high, and there is only one roller above the vehicle. Due to the large size of the roller and the height of the vehicle itself, there must be no obstacles above the road, otherwise It will affect the traffic of vehicles. The vehicle itself has a high center of gravity, and it needs to drive slowly when turning, otherwise accidents such as rollovers will easily occur.

Moreover, the cost of crawler vehicles is high. Once a problem occurs, the on-site maintenance time will be longer, the maintenance cost will be higher, and the use in mountainous areas will be more restricted.

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