JA Oilfield Manufacturing, Inc. is an oilfield well construction tools manufacturing, services and repairs company headquartered in Oklahoma City. JA Oilfield conducts business and services customers in the mid-west and South-central oil and gas fields of the United States and several international locations.

Drilling Performance Equipment and Tools

Shock Sub

Optimized spring rate and better shock absorption over dynamic range

Reduces bit bounce and extends bit life

Smooth drill force reliably delivered to the bit even in the most demanding conditions

Reduces Bottom-Hole Assembly premature failures due to shock and vibration loads

Improves penetration rates

Short sub length ensures neutral effect on BHA directional attitude.

Hole Quality Enhancement Tools

JA Roller Reamer FEATURES

Three roller cutter types are offered for formation-matched reamer performance.

• The type “VHM” soft formation cutters deliver maximum reaming action in soft formations like soft lime and shale. Service life of cutters is enhanced with hardened and carburized teeth.

• The type “QHM” medium to hard formation cutters are most suitable for cherty formations to hard formations such as dolomite, hard lime and chert.

• Knobby “KHM” cutters are prescribed for very hard formations. Knobby cutters deliver reliable reaming performance in hard, abrasive and semi-abrasive formations such as granite and sand.

Rig Replaceable Sleeve-Type Stabilizer

The RapiDSwap® feature enables rig floor swaps of various stabilizer sleeve sizes to match BHA stabilization and hole requirements without compromise to ruggedness and strength.

The one piece mandrel is manufactured from high strength heat treated alloy steel and by design feature overall length allowances to provide ample tong space for recutting connections.

The JA Oilfield RapiDSwap® sleeve and mandrel design are made to be interchangeable with similar brand of tools.

Standard stabilizer sleeves are available with composite tungsten carbide rod, geothermal, tungsten carbide inserts (T.C.I) and hard banding and dressing.

Integral Blade/Rotary Steerable Stabilizer

Integral Blade Stabilizer (IBS) is a one piece rotating stabilizer which can be run near bit or up in the drill string. It is a one piece construction manufactured from high strength alloy steel. The solid one piece chassis with three spiraled blades,
1) minimizes downhole torque and drag, 2) is a neutral to low vibration excitation source, 3) reduces hole wall damage, 4) ensures maximum fluid circulation while maintaining desirable ROP in the most rugged and abrasive drilling conditions.

Because of our unique hardfacing and hardmetal application capabilities, IBS can be dressed in a variety
of ways.

Welded Blade Stabilizer

Welded Blade Stabilizer is primarily used in soft to medium formations. Industry standards for welding downhole drilling tools are strictly followed to ensure operators of superior weld integrity of the blades to the stabilizer body.

Stabilizer bodies are manufactured from 4145H modified, quenched and tempered material. They are pre and post-heated to assure weld penetration. Bodies are ultrasonically and mag-particle inspected for cracks and flaws.

Extra long and wide blades are used for better stabilization. Both spiral and straight blade configuration are available at the user’s request. Bodies can be dressed with a 3 or 4 blade design.

Key Seat Wipers

Key Seat Wipers are most effective for reaming out key seats when pulling out of the hole using the single-clutch ascent type, or using the double-clutch dual-action ascent-descent type when reaming in and out of the hole.

The Key Seat Wiper is an active two piece body made from 4145H modified, quenched and tempered steel. The top and bottom mandrel are connected with a two-stage ACME thread and are shrink fitted. The clutch ring is shrink-fitted as well.

The key seat reaming tool is a sleeve with five blades dressed with an aggressive tungsten carbide hardfacing, SUPERLOY or tube borium.

Hole Openers

RAPTOR® Hole Openers are designed for both the enlargement of a pilot hole and for large hole applications.

The features that make the JA Oilfield hole opener one of the most rugged in the industry are:

• Solid one piece construction of the Hole Opener body

• Field replaceable cutters available in both Mill tooth or TCI variants to match formation requirements

• Standard bearing cutters and optional sealed journal bearings for extended service life

• Snap-ring changeable jets

• Optimized positioning of jets for effective cutter cleaning and maximum hole cleaning

• 2, 3 and 4 cutter tool

• Box down by Pin up and Box by Box connections

• Bull nose equipped Hole Openers

StaBReamer®

StaBReamer® combines the stabilization function of the Integral Blade Stabilizer and hole gauge quality maintenance of the Roller Reamer for reliability and drilling performance in borehole enlargement operations in a single sub.

The JA Oilfield StaBReamer® is a product of application-focused design and an exacting manufacturing process. The StaBReamer™ assembly provides a functionally efficient and operationally effective approach for configuring a bias-neutral BHA to drill vertical wells and hold hole angle in directional wells, even in highly dipping formations.

• Provides gauge protection with enhanced stabilization value for directional control

• Shorter BHA with more active components to provide better drilling performance

• Reduce number of connections
• Increase Stabilizer service life and in special BHA configurations increase bit gauge endurance

• Reduce Vibration – with more contact points

• Better drill string centralization in the well bore

Bottom Hole Assembly/Work-String Components

Steel Drill Collars

The bores are held to close tolerances by trepanning and are drifted to API specifications. The outside surface is “as-rolled”, which is the original mill finish. Connections are machined to API specifications and monogrammed with the API symbol. Connections are also kemplated to prevent galling.

Thread roots are “cold rolled” to provide longer fatigue life. Steel drill collars are offered both in a slick and spiral O.D. Spiraling the collars reduces wall contact between the drill collar and the wall of the hole to prevent differential wall sticking.

Non-Magnetic Drill Collars

Magnetic Permeability

1.009 Maximum

Corrosion Resistance

To deter stress corrosion cracking, all of our Non-Mag material has the ID treated with a shot peening operation. This compresses the inside diameter, and has been very successful in preventing stresses from forming while drilling in chloride or H2S atmospheres (sour gas) drilling environments.

Warranty

JA Oilfield Non-Mag is accompanied with a warranty for standard mill coverages, as well as a warranty against stress corrosion cracking. (A copy of the warranty is available upon request.)

Available Sizes - Ready to Deploy

4¾” OD x 2¼” ID
6¼” OD x 2¼” ID
6¼” OD x 213/16” ID
6½” OD x 2¼” ID
6½” OD x 213/16” ID
7” OD x 213/16” ID
7¼” OD x 213/16” ID
7¾” OD x 213/16” ID
8” OD x 213/16” ID
8½” OD x 213/16” ID
9” OD x 3” ID
9½” OD x 3” ID

Other Sizes Available on Request

Heavy Weight Drill Pipe

Heavy Weight Drill Pipe is an intermediate weight drill string member with drill pipe dimensions for easier handling. JA Oilfield offers heavy weight drill pipe in standard, spiraled and non-magnetic models.

To optimize wear resistance, hardbanding is standard on tool joint connections and the center upset. This heavy duty hard metal application is a closely controlled welding process applied with an automatic hardbanding machine. Flush hardbanding is applied as follows:

• 4” flush with OD and 1 inch on taper on the Box Connection End

• 5” flush with OD on the Pin Connection End

• 2 x 3” long bands on each end of the center upset

Rotary Kellys

Kellys are manufactured from 4145H modified quenched and tempered forged bar with a hardness range of 285 to 341 BHN and a minimum Charpy V-notch impact value of 40 foot-pounds are guaranteed one inch below the surface at room temperature. All kellys meet mechanical properties listed in Table 15 API RP 7G.

Both ends and the center drive section are full length machined. All kellys are precision bored by trepanning to provide true bores and are drifted to API specifications. When applicable, all Kellys are stamped with the API monogram.

All Hex and Square Kellys are provided installed in a shipping scabbard to protect the milled area during transit, and furnished with a pressed steel thread protectors.

Rotary Subs

Rotary Subs are made from 4145 H modified quenched and tempered material to API specifications, and carry the API monogram. All connections are cold rolled saver sub and kemplated and furnished with pressed steel thread protectors.

Square Drill Collars and Tri-Collars

Square Drill Collars and Tri-Collars are run in packed hole assemblies to reduce rapid changes in crooked hole formations. While both afford the needed rigidity to accommodate weight on bit requirements to achieve desired rates of penetration, the Tri-Collar design allows for enhanced fluid circulation and less potential for differential sticking. Square Drill Collars are available in hole sizes 6 inches thru 17 inches. Tri-Collars are available in hole sizes 6 inches thru 12 1/2 inches