RockySea Petro Sucker Rod Guide CentralizerIn oilfield operation, pumping jack and PCP(Progressive Cavity Pumping) systems increase operational costs associated with rod&tubing friction and paraffin deposition in production tubing. RockySea Petro has developed a series of rod guides which are also called rod centralizer that are molded directly onto the rod body to control this threat. Our rod guides for pumping jack and PCP applications come in a wide range of materials and are specifically designed to me
VIEW DETAILSRockySea Petro Low Profile Pumping UnitLow Profile Nodding DonkeyBeam Balanced Pump JackRM Beam Pump(ReversMark Beam Pump)Conventionalpumping unitRockySea Petro Petro has a strong pumping unit design ability. According to International Standard and China national standard, SanJack Petro has designed and developed a series of pumping units according to market demand.Description Low profile pumping unit is designed for applications where pump height is a critical concern. For locations with overhead irr
VIEW DETAILSRockySea Petro Drilling StabilizerDatasheetFunctionControl wellbore trajectory: The stabilizer mainly plays a guiding and stabilizing role in the drilling tool assembly. The installation position of the stabilizer controls the wellbore inclination angle and curvature within the specified range, and also concentrates the majority of the weight of the drill collar on the drill bit, reducing the non wellbore center force and other external forces borne by the drill string and drill bit. With the d
VIEW DETAILSRockySea Petro Precision Rolling PipeRockySea Petro Petro manufactures Precision rolling pipe in China. We have our own factory of Precision rolling pipe. RockySea Petro Petro provide the high quality and competitive price on Precision rolling pipe for you. Contact us now for Precision rolling pipe quotation.It has various types of cold rolling mill such as LG30, LG60, LG80 , LG220 and establishes a complete quality Control system.RockySea Petro’s precision rolling pipe has extremely high precision and straightness ca
VIEW DETAILSRockySea Petro Desulfurization And Denitrification Oilfield Steam BoilerThe utilization rate of lime can be improved and the cost of desulfurization can be saved by adopting the integration of desulfurization and dust removal.The regeneration of absorbent, desulfurization slag and precipitation are carried out outside the tower, which reduces the possibility of scaling in the tower.With NaOH desulfurizer, the circulating solution is basically NaOH aqueous solution, and there is no corrosion and blockag
VIEW DETAILSOil Country Tubular Goods (OCTG) play a pivotal role in the oil and gas industry, facilitating the extraction, production, and transportation of hydrocarbons. Within this category, tubing is a critical component designed to transport fluids from the wellbore to the surface infrastructure. Understanding the various sizes and specifications of OCTG tubing is essential for optimizing well operations and ensuring safety and efficiency.
OCTG tubing sizes are generally categorized by their outer diameter (OD), which can range from as small as 2 inches to as large as 13 3/8 inches for certain applications. The OD, wall thickness (WT), and pipe length are fundamental dimensions that determine the tubing's pressure rating, weight, and flow capacity. Tubing dimensions are often expressed in inches or millimeters and are crucial for matching the tubing to the specific requirements of the well.
The American Petroleum Institute (API) specification 5CT sets the standard for tubing used in oil and gas wells. It encompasses a comprehensive set of requirements that cover:
Different OCTG tubing grades are chosen based on the well's conditions, such as temperature, pressure, and the presence of corrosive elements. Higher grades like P110 and Q125 are utilized in more demanding applications where greater strength and resistance to collapse are required. The selection of the appropriate grade is critical for the longevity and integrity of the well.
Threads on OCTG tubing are engineered to provide a secure seal and facilitate the easy connection and disconnection of tubing strings. Common thread types include:
The choice of thread type is influenced by factors such as the depth of the well, the expected loads, and the specific requirements of the drilling or production operation.
OCTG tubing is manufactured in various lengths, typically ranging from 6 meters to over 15 meters, depending on the application. The length of the tubing affects its transportation, handling, and the number of connections required to reach the desired depth. Longer tubing lengths can reduce the number of joints, potentially lowering the risk of leaks and the overall weight of the tubing string in the well.
The information provided offers a detailed look at OCTG tubing sizes and specifications. For a comprehensive understanding and to ensure compliance with the latest industry standards, it is essential to refer to the full API 5CT standard and consult with industry experts.
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