The application of circular pipes in the petroleum exploration industry
Information summary：Circular pipes have a wide and important application in the petroleum exploration industry, mainly reflected in the following aspects:
1、 Drilling Engineering
1. Drill rod
In the process of oil drilling, the drill pipe is a key component that connects the drill bit and surface equipment. The circular pipe shaped drill rod has high strength and good toughness, and can withstand huge torque
Circular pipes have a wide and important application in the petroleum exploration industry, mainly reflected in the following aspects:
1、 Drilling Engineering
1. Drill rod
In the process of oil drilling, the drill pipe is a key component that connects the drill bit and surface equipment. The circular pipe shaped drill rod has high strength and good toughness, and can withstand huge torque and tension, allowing the drill bit to penetrate thousands of meters underground for drilling.
The drill pipe usually has hollow channels inside, which are used to circulate drilling fluid, cool the drill bit, carry rock debris, and maintain the stability of the wellbore. For example, in deep well drilling, the drill pipe needs to withstand relatively high pressure and friction, and the circular pipe shaped drill pipe can effectively disperse these stresses, ensuring the safety of drilling operations.
2. Casing
Casing is an important pipeline used to reinforce wellbore walls, prevent formation collapse, and prevent fluid leakage. Circular shaped casing is usually made of high-strength steel, and different specifications and materials of casing are selected for installation according to different well depths and formation conditions.
The installation of casing requires correct calculation and construction to ensure its sealing and stability with the wellbore. For example, in oil exploration under complex geological conditions, multiple layers of casing may be required to protect the wellbore, prevent the invasion of formation fluids, and prevent wellbore collapse.
2、 Oil and gas transportation
1. Oil pipe
Oil pipes are pipelines that transport crude oil or natural gas from underground reservoirs to the surface. Round tube shaped oil pipes have good sealing and pressure resistance, and can withstand high pressure and corrosion of oil and gas.
The material and specifications of oil pipes are selected based on factors such as the properties, production capacity, and transportation distance of oil and gas. For example, in the development of high sulfur oil and gas fields, it is necessary to use corrosion-resistant special material oil pipes to ensure the safety and stability of oil and gas transportation.
2. Gathering and transmission pipelines
The oil and gas extracted from various wellheads need to be transported through gathering pipelines to processing plants or storage facilities. Round tube shaped gathering and transportation pipelines usually use large-diameter steel pipes, which have high transportation capacity and reliability.
The layout and design of gathering and transmission pipelines need to consider terrain, environmental factors, and safety requirements. For example, in oil exploration in mountainous or marine environments, special laying methods and protective measures need to be taken for gathering and transportation pipelines to ensure the smooth transportation of oil and gas.
3、 Underground tools
1. Packer
A packer is a tool used to separate different formations or oil, gas, and water layers underground. Circular pipe shaped packers are usually composed of rubber and metal components, which expand through hydraulic or mechanical means and tightly adhere to the wellbore to achieve sealing and isolation.
The packer plays an important role in petroleum exploration and development, such as in layered water injection, layered oil recovery, and fracturing operations. The packer can effectively control the flow of formation fluids and improve oil and gas recovery.
2. Screen tube
Screen tube is a tool installed on the wellbore wall to filter formation sand and prevent sand particles from entering the wellbore. Circular tube shaped sieve tubes are usually made of metal mesh or slotted tubes, which have good filtration performance and strength.
The design and selection of screen pipes need to consider factors such as the particle size distribution of formation sand, oil and gas production, and wellbore size. For example, in the development of loose sandstone reservoirs, the filtration accuracy and sand control effect of screen pipes directly affect the production life and economic benefits of oil and gas wells.
4、 Structure of offshore oil platforms
1. Pile legs
In offshore oil platforms, pile legs are important components that support the main structure of the platform. The circular tube shaped pile legs are usually made of high-strength steel, with a large diameter and wall thickness, and can withstand external forces such as the weight of the platform, waves, and wind.
The design and construction of pile legs need to consider the complexity and harshness of the marine environment to ensure the stability and safety of the platform. For example, in deep-sea oil platforms, the length of pile legs may reach several hundred meters, requiring special manufacturing and installation techniques.
2. Conduit rack
The pipeline rack is the basic structure of offshore oil platforms, consisting of a frame structure composed of multiple circular pipes. Jackets are usually prefabricated on land and then towed to the sea for installation.
The circular tube structure of the conduit rack has high strength and stability, and can withstand various loads in the marine environment. For example, under the influence of strong winds, huge waves, and ocean currents, pipeline racks can ensure the safe operation of the platform and provide reliable support for oil exploration and production
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