Perforated Casing Pipe | Perforated Well Screen Piping

Applications of Perforated Pipe:

Perforated well screen is a type of filter used in oil and gas wells. It is designed to control the flow of oil and gas from the well, while preventing sand and other debris from entering the well.

perforation in the context of oil wells refers to a hole punched in the casing or liner of an oil well to connect it to the reservoir. Creating a channel between the pay zone and the wellbore to cause oil and gas to flow to the wellbore easily. In cased hole completions, the well will be drilled down past the section of the formation desired for production and will have casing or a liner run in separating the formation from the well bore. The final stage of the completion will involve running in perforating guns, a string of shaped charges, down to the desired depth and firing them to perforate the casing or liner. A typical perforating gun can carry many dozens of explosive charges.

Commonly, perforation guns are run on E-line as it is traditional to use electrical signals from the surface to fire the guns. In more highly deviated wells, coiled tubingmay be used. Newer technologies allow the guns to be run on slickline. Modern slickline technology embeds fiber optic lines that can transmit two-way data on real-time temperature, pressure and seismic responses along the length of the slickline. This information allows very precise operations of various down-hole tools, including perforation guns.

The benefit of this strategy is greater control of the well. Casing the bottom of the hole allows the well to be completed without having to worry about reservoir fluids. It also allows precise selection of where in the formation production will be and to be able to seal off perforations, which are no longer useful or counterproductive, through cementing or straddling.

The disadvantage is that perforating can lead to “skin damage”, where debris from the perforations can hinder productivity of the well. In order to mitigate this, perforating is commonly done underbalanced (lower pressure in the well bore than in the formation) as the lower well bore pressure will cause a surge of fluids into the well at the point of perforating, hopefully carrying the debris with it. Other methods of stimulation such as acidising and proppant fracturing are often required to overcome this damage and bring the well up to its full potential.

Casing and perforating as a method of completion is common place nowadays, though in some unconsolidated formations prone to production of sand (BP Harding as an example), open hole completions using only sandscreens may be the preferred choice.

Oil Well Perforation may be basically classified in two types a) Overbalanced Perforating and b) Underbalanced Perforating. Overbalanced perforating is normally carried out with the help of Perforating Guns or Hollow carriers. In Overbalanced Perforation the weight of the Well-bore Column is more than the Reservoir Pressure, thus it normally ensures that the Well does not start flowing oil or gas immediately after perforation. However, it may have the effect of damaging the formation due to forced entry of well-bore fluid (mud) into the reservoir.

Perforated pipe is used for the application of oil reservation layer without much sand or preventing rock bits from dropping off the well bore.

Every joint is put through comprehensive deburring process.
Each hole is visually inspected and cleaned of burr material.

Using multi-spindle milling machines for slotted liners and round hole drilling machines to drill base pipe, we offer a multiple of patterns on 1.900′ – 16” casing. Our slot size capabilities range from 0.012” to .500” and ¼” – ½” ” round holes. All of our machines use a continuous flow of biodegradable coolants to maintain the pipe’s metallurgical integrity.

Perforated pipe Introduction and History

Perforated casing pipe is a type of pipe that is used in many different industries for a variety of different applications. It is a special type of pipe that is made with holes in it that allow for water, oil, gas, or other materials to be pumped through it. It can be used in a variety of different ways, from providing drainage to controlling water flow to providing an efficient means of transporting a variety of materials. This paper will provide an overview of perforated casing pipe, its uses, and its advantages.

The use of perforated casing pipe dates back centuries. Ancient civilizations used it to transport water and other materials, such as grain, through long distances. It was also used in the mining industry to transport ore and other materials. In modern times, the use of perforated casing pipe has become much more widespread. It is used in many different industries and is used in both commercial and residential applications.

Types of Perforated Casing Pipe

Perforated casing pipe comes in a variety of different materials, shapes, and sizes. It can be made from steel, aluminum, plastic, or other materials. The size of the holes in the pipe can also vary, depending on the application. The most common types of perforated casing pipe are round and rectangular, though other shapes can also be made.

Uses

Perforated casing pipe is used in many different industries and applications. In the oil and gas industry, it is used to control water flow, provide drainage, and even for transporting oil and gas. In the agricultural industry, it is used for irrigation, drainage, and crop production. In the construction industry, it is often used for underground water lines and drainage systems. It is also used in the waste management industry for sewage lines and drainage systems.

Advantages

There are many advantages to using perforated casing pipe. It is relatively lightweight and can be easily transported, making it ideal for long-distance applications. It is also easy to install, as it requires only a few simple tools. It is also very durable and can withstand a wide range of temperatures and pressures. As it is made from a variety of materials, it can also be used in a variety of different applications.

Introduction to the working principle of the Perforated Well Screen oil casing:

Perforated well screen is a type of filter used in oil and gas wells. It is designed to control the flow of oil and gas from the well, while preventing sand and other debris from entering the well.

The perforated well screen is made up of several layers of material such as stainless steel, galvanized steel, brass, or other materials. Each layer has small holes or slots in it, allowing oil and gas to pass through while blocking sand and other debris. This type of filter is used to increase the efficiency of the well and to prevent sand and other debris from entering the well and clogging up the production.

Perforated well screens can be used in both surface and subsurface applications. The most common type of perforated well screen is the one used in the production of oil and gas. It is placed between the well casing and the production tubing to control the flow of oil and gas. It is also used in water wells to prevent sand and other debris from entering the well.

Perforated well screens are usually made up of a series of concentric circles, or slots, which are punched into the material. These slots are designed to allow oil and gas to pass through while blocking sand and other debris. The size of the slots will depend on the application. For oil and gas wells, the holes are usually about 0.25 to 0.5 inch in diameter.

The perforated well screen is usually placed in the well casing and then attached to the production tubing with a series of threaded connectors. It is important to ensure that the connectors are securely fastened and that the screen is firmly attached to the well casing.

Perforated well screens come in a variety of materials, including stainless steel and galvanized steel. Stainless steel is the most common material used, as it is highly resistant to corrosion and can withstand the harsh conditions in a well. Galvanized steel is also a popular choice, as it is less expensive and more durable than stainless steel.

Perforated well screens can be installed by a professional or by the well owner. Installing a perforated well screen requires the use of specialized tools, such as a drill, wrenches, and other tools. The installation process can be complicated and requires a certain degree of skill and experience.

Once the perforated well screen is installed, it is important to test it regularly to ensure that it is working properly. This can be done by monitoring the flow of oil and gas through the well. If the flow is not consistent, or if the screen is not working properly, it may need to be replaced.

Perforated well screens can be an effective way to control the flow of oil and gas from a well, while preventing sand and other debris from entering the well. They are easy to install and maintain, and they are available in a variety of materials and sizes.

Related Posts

Water well screen pipe | Sand Control Screen

  The water well screen is an important component of a well that allows water to flow into the well while preventing sediment and other debris from entering. The screen is typically located at the bottom of the well, near the aquifer. This is done to ensure that only clean water is collected and that any sediment or dirt is filtered out. The screen is typically made from a perforated pipe or other type of material that has small openings to allow water to pass through while blocking sediments from entering. Abter well screen is manufactured with a continuous v-shaped slot to reduce the entrance velocity of water and encrustation rates. Besides, Filson well screen has a large surface area without clogging, thus provide superior filtration performance. Well screen slot size selection is a critical step, typically based on the particle size analysis of the formation sample. With the standard slot size range from 0.005” to 0.5”, Filson well screen can control sand particles and silt from the well perfectly.   Advantages of Water Well Screens 1. The V-shape section plane of water well screens creates the continuous slot, which can avoid blockage and make sure of the unimpeded water. Read more

Geothermal Pipe Based Screen | Sand Free Pipe Based Well Screen

PARAMETER Geothermal Pipe based well screen specification: Nominal Diameter Pipe OD(mm) Weight lb/ftW.T[mm] Hole size In Holes per foot Total Areaofholes in2/ft Screen OD (in) 2-3/8 60 4.6[4.83] 3/8 96 10.60 2.86 2-7/8 73 6.4[5.51] 3/8 108 11.93 3.38 3-1/2 88.9 9.2[6.45] 1/2 108 21.21 4.06 4 101.6 9.5[5.74] 1/2 120 23.56 4.55 4-1/2 114.3 11.6[6.35] 1/2 144 28.27 5.08 5 127 13[6.43] 1/2 156 30.63 5.62 5-1/2 139.7 15.5[6.99] 1/2 168 32.99 6.08 6-5/8 168.3 24[8.94] 1/2 180 35.34 7.12 7 177.8 23[8.05] 5/8 136 42.16 7.58 7-5/8 194 26.4[8.33] 5/8 148 45.88 8.20 8-5/8 219 32[8.94] 5/8 168 51.08 9.24 9-5/8 244.5 36[8.94] 5/8 188 58.28 10.18 10-3/4 273 45.5[10.16] 5/8 209 64.79 11.36 13-3/8 339.7 54.5[9.65] 5/8 260 80.60 14.04 What is Geothermal Well Screen？ Geothermal well screens are an essential component of a geothermal well system. They are used to filter and protect the geothermal well from debris and other contaminants that can be harmful to the system. Sand Control Screens are designed to be durable and reliable, providing long-term protection for the well. The geothermal well screen is a cylindrical tube made of a perforated metal or plastic material. The perforations are designed to allow Read more

Pre-packed well screen | Wire Wrapped Pre Packed Sand Screen

Pre Packed Sand Screen contains perforated base pipe, inner and outer screen jackets and graded sand between the jackets. It is a modification of wire wrapped screen which is used in well sorted sand or stand-alone completion. Graded sand, with or without resin coating, is considered as a filter for reservoir particles. Wire wrapped pre Pre Packed Sand Screen is used in wells where conventional gravel packing is not feasible or economical. The thickness of gravel layer can be varied to meet special requirement. What Is the Function of Gravel Pack? Gravel packing is one of popular sand-control technique used in oil, water and gas wells. It stabilizes the borehole and filters the sand from the flow, only allowing very fine particles in. Pre Packed Sand Screen wire wrapped sand screen brings it into full play in maximizing production as well as controlling the sand.   Diameter: 168mm Material: stainless steel,carbon steel,etc Slot: 0.2mm End Connection: thread,coupling,etc thickness: 10mm Pre Packed Sand Screen PRODUCT SPECIFICATIONS Base Pipe Gravel Pack Perforations Screen OD (in.) ID (in.) Weight (lbs.) Coupling OD (in.) Thickness (in.) Size (in.) Holes/ft. OD (in.) Cylinder Area (sq. in./ft) 006 GA Inlet Area (sq. in./ft) 1.9 1.61 2.75 Read more

Well Screen Oil Casing , Pipe Based ,Sand Control,API 5CT

1. Grade: SUS 304 SUS304L, SUS316, SUS316L, or carbon steel 2. Slot Size: 0.02mm~15mm 3. Standard: DIN AISI ASTM 4. Certification: ISO9001, API 5CT 5.Pipe based well screens consist of base pipe,all-welded wedge wire screen and supporting rod.The base pipe is perforated or slotted API casing pipe,the base pipe can be stainless steel or carbon steel API 5CT casing.The all-welded wedge wire screens are welded together with base pipe by supporting rod. 6.Features of Pipe Based Well Screens: 1)Higher filtering accuracy: all-welded wedge wire screens as screen jacket with vee opening design makes the filtering accuracy higher,which can control sand better. 2)Excellent strength and resistance to deformation: The base pipe inside,the outside can be protected with the protection jacket added according to requirements,the integrated strength of the perforated base pipe only decreases 2~3% compared with the standard casing/oil tubing,so the pipe based well screens have enough integrated strength to resist to the pressure caused by strata.Even if some part of the well screens deformed,the slot of this part will not be widened,which makes higher sand controlreliability 3)More choices: the material of screen jacket can be stainless steel or carbon steel,the material can be chosen as per customers'requirement. 4)The smaller slot Read more

Slotted Casing Pipe | Slotted Liner Well Screen – API 5CT

  1. Introduction of Slotted Casing Pipe Casing pipe is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or well bore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow drilling fluid to circulate and extraction to take place. Slotted casing pipe is a type of casing pipe that has slots machined into its surface. These slots are used to help control the flow of water, oil, and gas in a well bore. The slotted casing pipe is designed to allow water, oil, and gas to flow through the slots while preventing sand and other debris from entering the well bore. Slotted casing pipe is commonly used in oil and gas wells, water wells, and geothermal wells. 2. Types of Slotted Casing Pipe There are two main types of slotted casing pipe: open slot and perforated slot. Open slot casing pipe has slots that are cut into the surface of the pipe in a straight line. These slots are usually spaced evenly apart and are typically about 1/4 inch wide and 1/4 inch deep. Perforated slot Read more

Custom Slot Well Screen Pipe | Slotted Perforated Well Screen for Casing

Product Continuous slot well screen, wire screen, Johnson screen Slot Size(mm) 0.10, 0.15, 0.2, 0.25, 0.30-3, also achieved upon customer request. Material Low Carbon ,Low Carbon Galvanized steel (LCG), Stainless Steel( 304,etc.) Lengths up to 6 meters Diameter 89 mm to 1200 mm End Connection Plain beveled ends, welding rings, flanges or threaded ( Thread male/female coupling ) . The data for reference only, we can design it as the client’s request. Continuous-Slot Well Screen is made by a v or wedge winding cold-rolled wire around an internal array of longitudinal support rods. The world advanced all-welded technology is used with each intersecting point of these wire fusion welded, which creates the robust construction and excellent mechanical performance. The v or wedge shaped profile wire wraps around the support rods over the full length of the screen creating a continuous slot opening, hence the screen allows water or oil entry your well freely in ample quantities, while at the same time keeps the majority of sand and gravel out of the well. All slots should be clean and free of burrs and cuttings and can be changed according to clients’ need. Application: For water, oil and gas wells, mainly water well industry. Read more