Showing posts from April, 2020

Fluid Powered Injection - Stuffing Box Plunger

 Stuffing Box Plunger The plunger, which serves as an internal blowout preventer, essentially shuts-in the stuffing box in the event of wire breakage. If the wire breaks, the broken end will eventually pass through, and out of the stuffing box. The well now has a free path to the surface through the stuffing, so technically, a blowout exists. When the wire leaves the stuffing box a differential pressure is created between the bottom of the plunger (which is experiencing surface well pressure) and the top of the plunger (atmospheric pressure). This differential causes the plunger to rapidly move upward. The soft rubber nose of the plunger collapses on itself and shuts off the flow. Chemical Injection Sub This device, usually placed just below the stuffing box, is designed to inject chemicals and de-icing agents onto the wire when there is a chance of hydrate formation. The sub incorporates a 2 liter internal chamber which is filled using a high pressure hand pump. It also has packing wh

Slickline and Wireline Intervention

 Wireline Defined Wireline is a method of conveying specialized strings of tools and associated specialty tools into and out of a well. The tool string is attached to a single or multi- strand wire. The three types of wireline used are:  Braided non-electric Braided electric. Wireline units come in a wide variety of designs and configurations. Pictured here are two skid mounted units which can be fitted out with slickline, braided line, or electric line. This design is commonly seen on offshore locations but can be mounted to a flatbed for land operations. The wireline truck pictured below is the unit more commonly used on land locations. Skid mounted units can be used on both land and offshore locations. They can be fitted out with slickline and braided line,This truck mounted unit is equipped with a crane and can also be fitted out with slickline and braided line. The truck mounted unit can carry both slickline and braided line. The gin pole rig-up, although no longer used offshore,

Wire Braided Hose Supplier

 Hydraulic Hose make up: Hoses should be kept away from hot parts as high ambient temperatures shorten hose life. Protective insulation may need to be used in unusually high ambient temperature areas Any Hose that has been cut or is cracked or is otherwise damaged, should be removed and discarded Any of the following conditions require immediate shut down and replacement of the Hose Assembly: • Fitting slippage on Hose Damaged, cracked, cut or abraded cover (any reinforcement exposed) Hard, stiff, heat cracked, or charred Hose Cracked, damaged, or badly corroded Fittings Leaks at Fitting or in Hose Kinked, crushed, flattened or twisted Hose Blistered, soft, degraded, or loose cover WARNING – Fluid injection injuries shall be treated without delay and shall not be treated as a simple cut! Fluid under pressure can cause serious injury. It can be almost invisible escaping from a pinhole, and it can pierce the skin into the body. Do not touch a pressurized hydraulic hose assembly with any

Gas Lift Supplier - Hydraulic Hose Manufacturer

 Wireline Entry Guide (WEG) Tubing shoes (or "mule" shoes) are short, cut-away lengths of tubing fitted to the bottom end of a tubing string to facilitate stabbing into a packer or packers. The outside should be barrel shaped to aid entry into the packer bore and to prevent hold-ups when running, and the inside bottom edge should be chamfered to aid wireline re-entry. When the tubing string is stepped down in diameter below the packer, some form of centralizer(s) should be fitted to, or near the shoe, especially in deviated wells. When selecting the type of guide to be used, remember to think about the equipment that may have to pass through the guide during the life of the well. General considerations for installing completions: Ensure that elevators, slips, and power tongs are in proper working order, and correct dies are fitted. Do not use pipe wrenches for manual make up of joints. Apply pipe  thread lubricant sparingly to pin and box thread, and sealing areas. Ensure tha

Gas Lift Supplier - Retrievable Packers

 Packers – Retrievable - Production The Halliburton ACH packer is hydraulically set and is designed as a cut-to-release tool. The packer is designed to have multiple bores or can accommodate control lines internally. It can be made to be a shear to release packer or a cut-to- release if used in high pressure environments. A straight pull can be used to release the packer or the packer mandrel can be cut allowing the packer and tailpipe to be retrieved as a unit. Hydraulic-set packers have a bidirectional slip system that is actuated by a predetermined amount of hydraulic pressure applied to the tubing string. To achieve a pressure differential at the packer and set it, a temporary plugging device must be run in the tailpipe below the packer. The applied hydraulic pressure acts against a piston chamber in the packer. The force created by this action sets the slips and packs the element off. Some models have an atmospheric setting chamber and use the hydrostatic pressure of the well to b

Gas Lift Supplier - Production Packers

 Circulation – Sliding Sleeves – Jar Up or Jar Down? Jar up to open sleeves, as opposed to jar down to open, have the advantage that a greater force can usually be exerted by upward jarring especially using hydraulic or spring jars. Downward jarring force, especially in deviated wells, is somewhat limited. Where a large differential pressure, annulus to tubing, is expected, down to open sleeves may be preferable, which place the tool below the communication port preventing tools being blown up the tubing. Sleeves placed in a build or drop section of a well can be particularly difficult to manipulate. It’s best to install jar down sleeves in these section. Circulation – Side Pocket Mandrels A mean of achieving communication between the tubing and the casing is with side pocket gas lift equipment, provided this has been installed in the initial completion. Initially gas lift dummies are placed in the side pocket mandrels until gas lift valves are required. Most dummies are non-equalizing