tubing-conveyed perforating (TCP) 1. n. [Perforating] The use of tubing, drillpipe or coiled tubing to convey perforating guns to the required depth. Initially, the technique was developed as a means for conveying the gun string on the production tubing, with the guns remaining in the well until they are removed during the first workover.
Why choose tubing conveyor perforating (TCP)?
When deploying perforating guns down-hole in well environments where lateral lengths can exceed 9,000 feet, you need tubing conveyed perforating (TCP) products that are both highly reliable and cost-effective. Our years of experience translates to high reliability and less downtime, saving you time and money.
What is the difference between Wireline Perforating and tubing conveyed?
wireline perforating is perforating using a wireline unit. Tubing Conveyed is running the gun at the end of a tubing string with a workover rig. Tubing conveyed is used more in laterals so they can get more weight to the gun and push it along.
What is a tubing conveyed?
Tubing Conveyed is running the gun at the end of a tubing string with a workover rig. Tubing conveyed is used more in laterals so they can get more weight to the gun and push it along. what exactly is a tubing string?
Why run perforating guns on tubing?
Whether the application is part of the original well design or in response to unexpected well conditions; running perforating guns on tubing ensures reaching targeted depth in circumstances where it is impossible to pump wireline guns down.
What is through tubing perforation?
Through Tubing Perforating Systems were developed for use in wells with existing production tubing and were designed to pass through the tubing to the zone to be perforated. A variety of gun systems are available including high pressure and high temperature systems.
What is TCP perforation?
Tubing-conveyed perforating (TCP) completion techniques enable perforating very long intervals in one run—some TCP strings have exceeded 8,000 ft [2,440 m] in length—and in highly deviated and horizontal wells, TCP is the only means of accessing the perforating depth.
What is wireline perforating?
Engineered perforating systems for maximized production Wireline (or electric line) is the traditional way to run perforating guns, and with good reason: Wireline provides the advantages of real-time depth control and selectivity along with reduced logistics compared with deployment on tubing.
What is used to perforate the casing?
Bullet gun, abrasive, water jets, and shaped charges are perforating methods used to initiate a hole from the wellbore through the casing and any cement sheath into the producing zone.
What is TCP in coil tubing?
1. n. [Perforating] Abbreviation for tubing-conveyed perforating, the use of tubing, drillpipe or coiled tubing to convey perforating guns to the required depth.
What does TCP stand for oil and gas?
TCP stands for Tubing Conveyed Perforating (oil drilling)
What is the difference between wireline and slickline?
While a slickline is a thin cable introduced into a well to deliver and retrieve tools downhole, a wireline is an electrical cable used to lower tools into and transmit data about the conditions of the wellbore. Usually consisting of braided cables, wirelines are used to perform wireline logging, as well.
How many types of perforations are there?
Oil well perforation may be classified as one of two types: overbalanced or underbalanced perforating. Overbalanced perforating is normally carried out with the help of perforating guns or hollow carriers.
What are the perforating branches?
THE PERFORATING (central, lenticulostriate) ves- sels are branches of the proximal part of the middle cerebral artery . We have divided their stems into the extracerebral and intracerebral portions.
Why do we perforate?
The purpose of a perforation is to make a material easy to tear or bend.
How is perforation done?
The process of perforation involves lowering a perforating gun into a wellbore to a planned depth and energizing the gun to be safely fired. When perforating a well, shape charges are fired and then energy from the explosion will create tunnels through casing, and cement and then into a reservoir.
How do you do perforation?
2:403:48Useful perforating tool - YouTubeYouTubeStart of suggested clipEnd of suggested clipDown ruler along those heavy lines once again make sure it runs along the ruler it has a mind of itsMoreDown ruler along those heavy lines once again make sure it runs along the ruler it has a mind of its own once or twice. Press into cardboard it'll really cut through.
What is a TCP gun?
$1,809.00 – $1,845.00. The Tactical Compact Pistol (or TCP for short) combines a match grade bull barrel and a lighter railed alloy frame to make a highly accurate, concealable 1911. The TCP has a compact stainless slide tri-topped and aggressive slide serrations.
How does a perforating gun work?
The primary objective of a perforating gun is to provide effective flow communication between a cased wellbore and a productive reservoir. To achieve this, the perforating gun “punches” a pattern of perforations through the casing and cement sheath and into the productive formation.
Is TCP a protocol?
What is TCP? TCP stands for Transmission Control Protocol a communications standard that enables application programs and computing devices to exchange messages over a network. It is designed to send packets across the internet and ensure the successful delivery of data and messages over networks.
What is a conex perforating?
The CONNEX™ perforating product generates asecondary reactionin the perforation tunnel thanks to proprietary liner metallurgy and charge design. CONNEX™ perforating technology was developed under license fromQinetiQwith the vision and support ofShell. CONNEX™ Perforating deliversdebris-freetunnels withno crushed zone, even in low-quality rock and withno need for significant underbalanceduring perforating. Depth of penetration and casing entry hole diameter are comparable to leading conventional deep penetrating charges. Because the external profiles of CONNEX™ charges are identical to conventional products, theycan be deployed in existing hardware, following standard operating procedures. The CONNEX™ family of products is the first to be entirely developed andoptimized for flowperformance, using all-natural rock targets. Testing in GEODynamics’ flow laboratory under representative stress and pressure conditions shows perforations shot with CONNEX™ chargesdeliver more than 30% greater flowthan those shot with leading conventional charges. …debris-free tunnels with no crushed zone… …more than 30% greater flow… So How Does It Work? When a CONNEX™ Perforating charge is fired, it initially behaves exactly like a conventional shaped charge. The main explosive load detonates, evolving a huge volume of gas and generating tremendous pressure. As the detonation wave advances through the main body of the charge it collapses the conical metal liner toward its axis, producing a high velocity jet of particles moving at over 20,000 ft/sec. Along the axis of the cone, particle collision pressures as high as 15 million psi are generated. The particle jet pushes aside and plastically deforms the gun body, wellbore casing, cement, and formation. Rock grains are pulverized and displaced radially, forming the perforation tunnel. Finely crushed rock together with mud, cement, and charge debris is forced into the pore throats of the surrounding rock, leading to a ‘crushed’ or ‘altered’ zone of reduced permeability. Whereas perforation with conventional charges depends on flow from the undamaged matrix to the wellbore to remove the crushed zone and any debris that may be obstructing the tunnel, CONNEX™ Perforating introduces a secondary Reactive™ effect that makes flow unnecessary. A carefully controlled bimetallic combination within the powdered metal liner reacts under the tremendous pressures of detonation and liner collapse. This Hume-Rothery reaction is highly exothermic and takes place in the perforation tunnel microseconds after it has formed. The energy released supercharges the near-tunnel region, creating a surge of flow into the wellbore. This flow removes material from the entire tunnel length, including the impermeable but relatively weak crushed zone. Since every tunnel is subjected to this secondary reaction they are all cleaned out, irrespective of differences in rock quality or local pressure conditions.
What is a barrier of the Fill/Flow Sub?
barrier of the Fill/Flow Sub, along with a restricted ID through the toolwhich acts as an integral No-Go feature. This tool may be used as aCombination Fill/Flow and No-Go and may be placed below a gunrelease in the TCP string.
How is underbalance created in a well?
A well may be perforated and gravel packed on a single trip into the well. The underbalance is created by circulating a lighter fluid through the packer bypass. After firing, the guns automatically drop, allowing the packing operation to proceed.
What is a 3 1/2 vertical shock absorber?
The 3-1/2" Vertical Shock Absorber is designed to run between thePacker and TCP guns. The purpose of the VSA is to protect delicateelectronic gauges and mechanical tools from the severe shocksassociated with the detonation of the TCP guns .
