overshot tool oil and gas in stock

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Welcome to Pickett Oilfield’s fishing tools web page. Our company has been in the oil & gas drilling equipment industry for over 38 years, supplying new and used fishing tools and downhole tools to customers in practically every producing region in the world. We are here to serve all your drilling equipment needs – if you don’t see it on this site, just give us a call or email. We can get it, if you need it!

Pickett Oilfield, LLC offers prospective buyers an extensive selection of quality new and used oil & gas drilling equipment, including fishing tools to choose from at competitive prices. Browse our inventory of oilfield fishing tools for sale at competitive rates.

Oil Well Fishing Tools Supplier: Impression Block, Casing Scraper, Bumper Sub, Fishing Jar, Overshot, Spiral Grapple, Fishing Magnet, Type “A” Packer, Washover Pipe, Junk Mill, Wireline Spear and More.

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A downhole tool used in fishing operations to engage on the outside surface of a tube or tool. A grapple, or similar slip mechanism, on the overshot grips the fish, allowing application of tensile force and jarring action. If the fish cannot be removed, a release system within the overshot allows the overshot to be disengaged and retrieved.

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When you can’t reliably engage your fish with drillpipe, rely on the reliability and flexibility of fishing internal and external engagement tools from Baker Hughes.

Externally engage, pack off, and pull a fish with our wide range of overshot tools. The first fishing choice when screwing into the fish is not an option, our overshot tools are simply designed but ruggedly built. Choose from options including:

Kelo socket overshots are proven to catch small-diameter workstrings and sucker rods inside casing as well as recover coiled tubing that has parted and remains in hole.

The t-dog, mouse-trap, and flipper-dog (TMF) overshot can be dressed in three different ways for different washover applications. Deploy the t-dog assembly option to washover and recover mud-stuck or sanded-up square-collared pipe in one trip. Use the mouse-trap assembly to catch sucker rods, integral joint tubing, or cables. And with the flipper-dog assembly, you can confidently catch a fish with different ODs.

If your fish cannot be externally engaged, our range of releasable spears provide a viable retrieval option. These internal engagement tools come in a variety of designs, including:

Hydraulic casing spears are run above a mechanical or hydraulic inside casing cutter, allowing cutting and casing pulling in one trip. The spears are set and released hydraulically for ease of operation and no need for mechanical intervention.

Type B™ and Type D™ casing and tubing spears retrieve a full range of casing sizes. The design of these spears affords easy dressing for alternate casing sizes, simple field-dressing to change the release setting, and fast, effective release—all of which help improve the efficiency of your fishing operations.

The Type E™ casing spearprovides effective casing retrieval in the most severe downhole environments. With its heavy-duty, high-strength design and simple construction you’re assured reliable performance and easy operation and maintenance for a wide variety of casing sizes and weights.

When you can’t reliably engage your fish with drillpipe, rely on the reliability and flexibility of fishing internal and external engagement tools from Baker Hughes.

Externally engage, pack off, and pull a fish with our wide range of overshot tools. The first fishing choice when screwing into the fish is not an option, our overshot tools are simply designed but ruggedly built. Choose from options including:

Kelo socket overshots are proven to catch small-diameter workstrings and sucker rods inside casing as well as recover coiled tubing that has parted and remains in hole.

The t-dog, mouse-trap, and flipper-dog (TMF) overshot can be dressed in three different ways for different washover applications. Deploy the t-dog assembly option to washover and recover mud-stuck or sanded-up square-collared pipe in one trip. Use the mouse-trap assembly to catch sucker rods, integral joint tubing, or cables. And with the flipper-dog assembly, you can confidently catch a fish with different ODs.

If your fish cannot be externally engaged, our range of releasable spears provide a viable retrieval option. These internal engagement tools come in a variety of designs, including:

Hydraulic casing spears are run above a mechanical or hydraulic inside casing cutter, allowing cutting and casing pulling in one trip. The spears are set and released hydraulically for ease of operation and no need for mechanical intervention.

Type B™ and Type D™ casing and tubing spears retrieve a full range of casing sizes. The design of these spears affords easy dressing for alternate casing sizes, simple field-dressing to change the release setting, and fast, effective release—all of which help improve the efficiency of your fishing operations.

The Type E™ casing spearprovides effective casing retrieval in the most severe downhole environments. With its heavy-duty, high-strength design and simple construction you’re assured reliable performance and easy operation and maintenance for a wide variety of casing sizes and weights.

I debated on where to go next, but at the end of the day the most widely used fishing tool has to be an overshot. Some will say why not a spear? Well if you must ask, always go with the strongest fishing tool you can run to catch the fish. And if you run a spear, never plug the I.D. of your fish by breaking it off. Done with that!

The info that follows has been taken from the manuals published on overshots. I realize that paper manuals are a thing of the past, yes, yes at one time fishing tool hands carried massive catalog brief cases full of reference material. Now you have the luxury of your laptop loaded with information. If you have never sat down and read an overshot manual, now might be a good time.

The overshot is highly versatile and efficient tool. There are several different types of overshots, however each overshot is designed to engage a specific size of tubing, pipe, coupling, tool joint, drill collar or smooth OD tool.

The original overshot was developed by Bowen Oil Tools, which is now part of NOV. One thing I will point out is that in the catalogs you will see more than one assembly number for a given OD of Overshot, this came about due to the two locations developing their own variations. I found this information on NOV’s website and thought it was interesting to share.

In the early 1930s, the consequences of the stock market crash prompted S.R. Bowen to consider starting a company in Houston, where oil exploration and drilling was accelerating. In the early spring of 1934, his son Walter and a friend formed Bowen Company of Texas.

Bowen™ became a leader in innovation with the creation of the first overshot, the Series 150, in 1935. This tool set the standard for fishing equipment, and the quick acceptance of the tool assured the company partners that their business would be successful. The company continued to create new products, building a reputation for their well tool design and construction.

Currently there are several manufacturers of overshots, NOV (Bowen), Rubicon (Logan) and Applied Oil Tools (Gotco). These overshots are designated by a series number as follows:Series 10 - Sucker Rod Overshot

Overshots may be identified by one of the following, known as “type”:Full Strength (FS) - engineered to withstand all pulling, jarring and torsional strain

The basic overshot (from top down) consists of a top sub, a bowl, grapple, control, and a guide. In addition to the basic components, some overshots (Series 10 and 150) can be dressed with either a:Spiral grapple used if the fish diameter is near the maximum catch of the overshot, or a

The Series 150 Overshot features the ability to packoff on the fish. When the circulating packoff is not used, the fluid circulates down the drillpipe, aroundthe top outside of the fish, through the slip or grapple assembly, around the guide shoe and up the annulus.

When the circulating packoff is used, the annular space between the top outside of the fish and the inside of the lower part of the overshot is packed off, diverting the fluid flow down into the fish, making it easier to release and recover the fish. Packoffs usually are not high pressure devices but will often withstand sufficient pressure to establish circulation through the fish. Third party high pressure packoffs are available from various sources.

The extension can be installed between the top sub and the bowl of the Series 10, 70, and 150 overshots. It is used to extend the overshot bowl to:Allow the grapple to catch farther down on a fish that may be necked down at the top by having been pulled in two, or latched by an overshot and released several times, or to

A stop ring must be used where a fish OD reduces immediately below the catch area to allow the grapple to bite on full-size pipe.Example - catching a Hydril upset or EUE collar. If the upset of collar should pass completely through the grapple, the overshot may not be releasable.

If a stop ring is needed and the grappledoes not have a built-in stop, a stop ring can be run above the grapple, in the area between the Top Sub pin and the Grapple.

The Series 10 Sucker Rod Overshot is designed to engage and recover sucker rods, couplings, and similar items from inside tubing strings.Basket grapples are recommended for fishing for hardened and ground boxes (Sucker Rod Box).

The Series 20 Sucker Rod Overshot is a short catch tool which provides a means for engaging the exposed portion of a fish too short to be engaged with a Series 10 overshot.Uses basket grapples only

The Series 70 Short Catch Overshot is designed to engage the exposed portion of a fish too short to engage with Series 150 overshots.Uses basket grapple only

The Series 150 Releasing and Circulating Overshot is used to engage, packoff, and retrieve twisted-off lost tubing, drillpipecoupling, tool joint, casing or other similar fish.

Special Grapples:Nitraloy grapples may be available from some vendors. It is available only in the most popular sizes and is not commonly used on standard pipe.

A right hand wicker grapple converts a normal right release overshot to left hand release. This grapple is used where you expect to apply excessive right hand torque to release a packer, safety joint, etc. Note: Overshot will have to be released by left hand rotation.

Grapple Controls:Basket Grapple control packers have built in packoffs. These packoffs will hold various amounts of pressure, depending on the size of the fish and the condition of the packoff after engaging the fish.

High Pressure Packoff Assemblies:The High Pressure Packoff Assembly is an accessory to the Series 150 Overshots. It is used when high pressure circulation to the fish is required. It consists of a packoff sub with packing and packing rings and is installed between the top sub and bowl of the overshot. By running the packoff sub above the bowl, this design prevents the application of high internal pressures to the overshot bowl. The design of the High Pressure Packoff Assembly allows pressures two to three times the standard overshot packoff to be applied to the fish.

This information comes directly from the NOV manual for the Wide Catch Overshot. This is probably the first and only change to this common tool I know of in my career.

The Wide Catch Overshot provides the strongest tool available to externally engage, pack-off, and pull a fish that has been significantly worn. This tool has similar rugged design features and construction as the industry standard, Bowen Series 150 overshot, with the ability to interchange the Bottom Guide with the full range of existing components used with the standard Bowen Series 150 overshot.

In service, the Wide Catch Overshot (WCOS) takes a positive grip over a large area of fish and is capable of withstanding heavy pulling, torsion, and jarring strains without damage to the tools or the fish.

The WCOS has been designed to significantly increase the catch range of the OD of the fish to be caught, compared to the standard overshot. This enables a greater opportunity for a successful fishing operation in a reduced number of trips, thus reducing overall intervention costs for the operator. In addition to the large catch range, the WCOS has the ability to seal across very large extrusion gaps at both standard and high pressure and provide full circulation through the fish, should it be required.

New coarse threads have been introduced at the connection between the top sub and bowl to allow for quick assembly while maximizing the torsion and tensile strength.

Connections between the Top Sub/Bowl and Extension Sub have been designed to create a seal. This will prevent the connection from washing out should the overshot be required to be flowed through for a long period of time. In order to lock the Top Sub/Extension Sub to the Bowl from backing off during operation, set screws have become standard and will gall the threads should the connection break free.

The operation of all overshots is identical. The exception being that the Series 150 carries a packoff which provides circulation through the fish. First, determine that the overshot is properly assembled and dressed with the proper size grapple. Make up the overshot on the fishing string (normally it is run connected to the bottom of the bumper sub) and run it into the well. As the top of the fish is reached make sure circulation has been established to clear overshot ID of any plugging. Lower the overshot onto the top of the fish with no rotation at first. A 5,000 pound set down weight will be sufficient to engage the grapple. While lowering the overshot over the top of the fish watch for pressure build up, shut off pumps if any pressure build up is noticed. Should any back pressure be noticed, release the back pressure to allow the grapple to engage the fish. By elevating the string it can be determined, if the grapple went over and engaged the fish. If unable to work overshot over top of fish without rotation, then slowly rotate the fishing string to the right and gradually lower the overshot over the fish. Combined rotation and lowering over top of the fish are important to keep the grapple in the release position. This provides the maximum clearance between the grapple and fish. While lowering the overshot over the top of the fish, watch for torque build up and an increase in pump pressure. A pump pressure build up indicates the overshot has gone over the top of the fish thereby reducing the flow area. Stop rotation (continued rotation could dull the wickers of the grapple) enabling the grapple to set. Allow the right hand torque to slack out of the string and then pull on the string by elevating the string to set the grapple.

To release from the fish, bump down, then simultaneously rotate to the right and slowly elevate the fishing string. It is best to have a clean fishing top before running the overshot.

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A tool composed of a mandrel on which are mounted several heavy-duty rollers with eccentric roll surfaces. It is used to restore buckled, collapsed, or ...

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Dispatched to any location in the world, our skilled fishermen clear openhole obstructions—including lost bottomhole assemblies, tubular twist-offs, and other drilling-related tools—while minimizing formation damage.

Leveraging a vast array of proprietary junk and pilot mills, our fishermen can mill through and pull out stationary or loose obstructions in your wellbore. Whether you need to mill through a stuck fish or the outer edges of a plug, we respond with efficient milling and washover services that minimize downtime.

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Open hole fishing is one of the most critical operations in drilling. It involves a lot of expertise and experience of the personnel. This VDO by Weatherford Fishing Services demonstrates you about the open hole fishing. This is highly recommended for you to watch it. Additionally, the full VDO transcript is provided.

Openhole fishing involves the removal of unwanted objects from the wheel bore. The objects can be tools, equipment and broken pieces of drill pipe, bits or tubulins. Openhole fishing begins following a Backoff in the drill string at or above the stock point of the fish in the wellbore leaving an accessible fish top.

The fish can be removed using special tools and techniques. A Scew-in sub is one of the most common fishing tools. Its modified pin can be used to catch an undamaged fish. The overshot tool because of its versatility is frequently used in fish recoveries. Its simple design includes a circulating and releasing action as well as a 360 degree catch of the fish. Normally the overshot or screw-in sub is connected to the bottom of the bumper sub and fishing jars on the fishing assembly. As the tool is lowered over the fish the top of the fish passes through the tool into the bowl. When the assembly is raised grapples engage the fish at a lower point and it is work free and pulled upward.

If the top of the fish is bent, twisted or broken it should be dressed off to provide a clean top so the grapple can secure it firmly. Dressing off is achieved with a Skirted or hollow fluted mill. Several types of mills are available for this purpose and other jobs.

In a washed out hole use of a hydraulic Knuckle joint located above the overshot kicks out under pump pressure to increase the sweep of the overshot to facilitate capture of an allusive fish. When the severe wash out, a Wall hook guide run on the bottom of the overshot further improves the search and capture of the fish.

When the fish cannot be dislodged by pulling with the overshot a jarring assembly run in the fishing string can be activated to strike heavy blows either up or down on a stuck fish to free it. The down action is achieved with a Bumper jar; essentially a slip joint with a sliding stroke. The impact enhanced by the weight of drill collars above the Bumper jar results in a sharp blow with the fishing string. Dropping the string quickly produces a sharp downward blow on the fish. This jarring action is especially effective in freeing PC Pipe or a string that is stuck as a result of an upward pull.

In many cases a stuck fish will require a powerful upward jar to free it. Hydraulic fishing jars permit an upward impact. The impact produced by a Hydraulic jar depends on the amount of pull taken on the tool before it trips. As indicated earlier the impact of a Hydraulic jar is enhanced by the weight of Drill collars placed above the tool. A jar accelerator further intensifies the effect of a jar at any depth. It is especially effective in shaft fishing operations where elasticity present in longer drill strings is not available. The use of an accelerator also keeps the energy of the jar impact form being lost a mole.

When a fish is stuck and cannot be jarred or worked free a widely used practice called Washover is employed. The Washover operation is the most successful way to free a fish and requires expert judgment in both pipe selection and in its proper running application. As mud and hole conditions are critical in many cases a bit drip may be necessarily to condition the hole prior to running the Washpipe.

Essentially Washover operation involve a pipe string that slips over the stuck fish allowing fluid to circulate in the annalist between the fish and the inner wall of the Washover pipe. Fluid under pressure flushes out debris cut lose by the rotary shoe run on the bottom of the Washover pipe. The washed over fish secured by an overshot or a screw-in sub and then be backed and removed to the surface.

The Washover pipe selected requires and inside diameter large enough to accommodate the fish and an outside diameter that can rotate without sticking in the open hole and still allow circulation.

Various types of Weatherford shoes are available. Each shoe is custom designed for a particular procedure. Tooth-type shoes for example are recommended when the formation to be cut is relatively soft. When metal such as tool joint or stabilizer blades must be cut the rotary shoe is dressed with Tungsten carbide or diamonds internally, externally or both; tailored specifically for the task. Proper rotary shoe selection requires expertise. An improper choice could severely damage the fish complicating the recovery operation. Occasionally the drill pipe maybe plugged, usually by mud. Cutting the freed drill pipe with a mechanical outside cutter run on the Washpipe would remove the obstruction and establish a clean workable top. Following Washover the Washpipe is pulled up and the shoe removed and replaced by a mechanical Outside cutter. Run into the well and over the freed fish the cutter is engaged. With a slight upward strain cutter knives are fed through the wall of the drill pipe fish and the fish is parted. Rotation is then stopped and the cut piece of fish is recovered and pulled to the surface.

When the fish is stuck off bottom a Washpipe spear may be run in conjunction with the Washpipe and screwed into the fish prior to the Washover procedure. This prevents a fish freed by the Washover operation from dropping to the well bottom and damaging the wellbore, drilling string or drilling bit.

Openhole fishing also involves the retrieval of Junk at the well bottom. Junk is defined as any unwanted material in the hole that hampers operations; such as, accidentally dropped tools, metal debris, parts of equipment including cones from drill bits. A commonly used retrieval tool is the Fishing magnet. Fishing magnets are especially cost effective for retrieving smaller fairish objects such as bit cones, slips and mill cuttings.

Permanent magnets have circulating ports around the outer edge so that fill and cuttings can be washed away exposing the Junk for proper magnetic contact. Magnets are furnished with flush guides, lift guides or mill guides which help in washing and securing the Junk. The magnet is lowered to the well bottom while circulating and then pulled to the surface. This activity may be repeated until the wellbore is cleared of all Junk.

Where Junk pieces cannot be caught by a magnet or consistent not fairish metals Weatherford employs specialized Junk baskets depending on the type of formation encountered. These retrieval tools consist of three basic types.

In soft medium formations a coin tied basket commonly known as a Globe basket can be run to cut a short core in the bottom of the well. This core as well as any Junk contained in it is held in place by Retaining fingers and removed to the surface.

In hard formations a jet powered or Reverse circulating basket is a highly effective tool. Lowered to the bottom it rotates slowly with circulation to flushing settlings from the Junk. A ball is dropped into the drill pipe and pumped down until the ball seeps in the retriever. The flow of the fluid is diverted to the outside the tool which causes two things to occur. It establishes reverse circulation and a venturi effect which then creates a partial vacuum inside the Junk basket. These two forces propel the Junk into the basket. Captured Junk is secured by the hinged Retaining fingers. This action continues until all Junk is removed from the hole.