HOME

SERVICES US

CONTACT

Our Services

* Hydrostatic Pressure Testing (Threaded)
* Hydrostatic Pressure Testing (Plain End)
* Threads Cleaned and Redoped
* Visual Thread Inspection
* Sugarblast Threads
* Field Repair Threads
* Improved Visual Thread Inspection
* API Thread Gauging
* Drifting
* Visual Verification
* Full Length Visual Inspection
* Internal Cleaning
* Internal Coating
* External Cleaning/Sandblasting
* External Coating
* Waterblasting (Internal / External)
* Bucking Couplings
* Bundling
* Bolstering
* Bolster Rental
* Miscellaneous Services

HYDROSTATIC PRESSURE TESTING- Threaded Tubulars

A portable hydrostatic unit is employed to test new and used tubular goods to API or customer's specifications.

1. Powerful six-stage pumps apply the specified test pressure quickly and smoothly. Pressure is held a minimum of five (5) seconds, during which time the joint of pipe is inspected for leaks.
2. After testing, fresh thread compound is applied to each thread; protectors are installed wrench tight.
3. All hydrostatic pressure-testing units are equipped with both pressure gauges and pressure recorders. These instruments are calibrated and certified every three- (3) months.

HYDROSTATIC PRESSURE TESTING- Plain End Tubulars

A portable hydrostatic unit is employed to test Range 2 & 3 Plain End Tubing to API or Customer's specifications.

1. A hydraulic intensifier applies the specified test pressure quickly and smoothly. Pressure is held a minimum of five (5) seconds, during which time the joint of pipe is inspected for leaks.
2. After testing, the joint of pipe is inspected for leaks.
3. All hydrostatic pressure-testing units are equipped with both pressure gauges and pressure recorders. These instruments are calibrated and certified every three- (3) months.

VISUAL THREAD INSPECTION

Thread protectors are removed. Threads are cleaned and visually inspected for imperfections. Fresh thread compound is applied to each thread; protectors are installed wrench tight.

API THREAD GAUGING

Certified thread gauges are employed to accurately measure thread height, lead, taper, thread length, and Buttress run-out. All readings are to API 5B/5CT, unless special customer specifications are ordered.

DRIFTING -- FULL LENGTH

Each length of pipe is drifted full length to assure compliance with API Specifications. All drifts employed comply with API Standards. OFS, Inc. maintains in inventory a full line of nylon drifts that conform to API RP 5 A5 for internally plastic coated tubulars. We also have in stock the commonly employed oversize drifts.

FULL LENGTH VISUAL INSPECTION

The inside and outside pipe surface and the outside coupling surface are inspected full lengths for imperfections and damage. Verification mill markings (stencil and/or die stamps) is included.

CLEANING OF TUBULARS

OFS, Inc. has available for the reconditioning of tubulars Wilson Model C- 1419 portable pipe cleaning machines for size 2-3/8" OD through 20" OD tubulars.

INTERNAL CLEANING

An air power driven rotary wire brush is employed to removed light rust. Mechanical rattlers or sandblasters are employed to remove heavy rust or scale. Waterblasting units are employed to remove oil and wet mud.

INTERNAL SPRAY COATING

A corrosion preventative material is applied to the entire internal surface to retard corrosion.

EXTERNAL CLEANING

A power driven rotary brushing unit is employed to remove light rust. Sandblasting is employed when heavy scale must be removed. Waterblasting is employed when oil or wet mud must be removed.

EXTERNAL SPRAY COATING

A rust preventative is applied to the entire external surface. Power spray units are employed to ensure even coating.

BLOCK SPRAYING

The entire outer surface or a rack of pipe is spray coated with a suitable rust preventative material.

BUCKING SERVICE

A portable unit is employed to remove or install couplings. Buck up tools are designed to ensure maximum grip with limited marking of the pipe.

BOLSTERING SERVICE

Bolsters are employed for use on special handling material where no metal to metal contact is allowed.

BOLSTER RENTALTOP

BUNDLING SERVICE

Tubulars are collared and bundled pyramid fashion at 5000# lifts or to customer specifications. Each bundle is then strapped together using 1-1/4" steel strapping; seven strap minimum per bundle.