drilling mud pump broken bolts supplier

During the 1950’s the Mission” 1780 type “W” pumps were introduced to replace duplex pumps while creating the first low pressure mud system. The use of a high quality concentric type centrifugal pump allowed abrasive fluids to be mixed and transferred while reducing initial and maintenance costs for the drilling industry. The low-pressure mud system with Mission 1 780 Type “W” centrifugal pumps became the industry standard.

As well depths increased so did the need for heavier mud weights. When the mud weight began exceeding 14 ppg the need for a pump that could withstand greater horsepower loads arose. During the 1970’s Mission organized a design team that engineered the Mission Magnum. The Magnum was designed to have the same footprint, flange locations, and drive shaft diameter as the 1780 “W”. This allowed a 1780 to be replaced by a Magnum without any skid modifications. The Magnums were originally engineered with a 2-1/2″ shaft (3″ between the bearings), double row bearings with an engineered life of over 2 years at 200 HP, larger impellers and heavier frames. The Magnum allowed drilling contractors to upgrade their centrifugal pumps and mix heavier fluids.

The National Oilwell Varco” Mission centrifugal pump line has proven to be the best centrifugal design for handling abrasive mud. This pump line offers a broad selection of innovative features for a variety of routine, demanding, abrasive and corrosive applications. These pumps are designed for a wide range of flow rates, from a few gallons per minute to thousands of gallons per minute.

Each pump contains the finest materials, engineering and craftsmanship available in the industry. Described are like features of these pump lines and unique features are described on the following pages.

National Oilwell Varco utilizes unique design features developed for slurries. Three major differences from most pump designs include the concentric casing, wider impellers and increased re-circulation areas. Each feature contributes to reducing wear when handling abrasive fluids.

All of the pumps feature a concentric casing. This casing averages 37% thicker than conventional pump casings, and up to 50% thicker for the larger, mud pumping models. They are pressure rated at 1 .5 times the flange rating and are designed with a 1 /8″ erosion allowance. The concentric style casing has proven to offer the greatest pump life and reduced downtime. The walls of a concentric style casing are an equal distance from the impeller throughout the impeller circumference, which results in a smooth flow pattern. A volute style casing has a cutwater point that disturbs the fluid flow pattern creating an eddy. The concentric casing eliminates vibration, turbulence and aeration that is caused by the cutwater point in conventional volute pumps. It also reduces the high bearing loads and shaft deflection even at near shutoff flows.

The shaft is much larger in diameter than conventional pump shafts for heavy-duty performance, minimum deflection and increased operating life of the seal or packing. With a 2-1/2″ diameter at the seal area and 3″ diameter between the bearings these pumps can be direct connected or belt driven.

For over 30 years U.S. Bolt Mfg., has been recognized as a world-class producer of engineered bolting intended for use in hostile environments and safety-related applications. For joining the most critical connections in deep-water offshore drilling and production equipment, power generating turbomachinery, pumps, valves, pressure vessels, Navy ships and industrial machinery, our hot forged, premium quality bolting is the stand-alone choice.

We manufacture engineered bolting for critical service and safety-related applications. Forged fasteners; hex head bolts and screws, 12 point flange, hex flange, socket cap, etc., hex nuts, all-metal lock-nuts; all thread studs, tap-end studs, and a variety of special configurations.

• Bolting for subsea Oil & Gas drilling and production equipment (Risers, BOPs, TJs, Flex Joints, Stress Joints, Well Head Connectors, Subsea Manifolds, Subsea Well Heads, and Subsea Trees);

A properly serviced pulsation dampener is critical for your mud pumps’ efficiency, safety, and performance. Unfortunately, there aren’t many resources available to educate personnel on executing safe and effective servicing procedures. Please review the following steps with your personnel for safe pulsation dampener maintenance.

Mud pump manufacturers frequently offer both types of pumps. In reality, the pump power end and fluid ends are identical. The difference lies with the method used by the pump to displace the mud.

In the early 1990s, it was generally accepted that the pumps used on mid-size and small boring machines should deliver fluid to the bore at a high pressure (1,800 to 2,200 psi/124 to 152 bar)) and have a low flow rate of 5 to 25 gpm (19 to 95 Lpm).

As the industry matured and operators became more experienced, it was found that a higher mud flow with lower pressures was the superior way to bore. In some formations high pressure, low flow is still preferred and provides the most success. However, in the majority of areas, higher flows are best to provide hole cleaning (removal of solids) and provide adequate bentonite for formation sealing and lubrication.

One advantage of plungers/packing is that the packing can be adjusted by the operator to minimize leakage until the bore is complete and the pump can be serviced.

Pumps with piston/liner technology work in the opposite manner. Pistons work well to prevent leakage when flow pressures are low (below 1,200 psi/83 bar). Pistons are generally larger in diameter than plungers, allowing the pump to run slower-this is good-for the same flow rates.

This system consists of a small centrifugal pump, spray nozzles, piping and collection tank. It sprays a mixture of water and lubricant (non-foaming soap or a small amount of liquid polymer), onto the back of the pistons.

Many boring machines are equipped with plunger pumps. These units are being applied where piston technology should be used, mainly low pressure and higher flows. These pumps frequently have leakage problems. To help operators combat leakage on these boring machines, conversion kits are being developed by some pump manufacturers to allow pumps to be changed from plunger to piston technology. Consult your boring machine or pump manufacturer for availability.

Economically, a good time to consider changing from plunger to piston technology on your pump is when the plungers are no longer serviceable and must be replaced. Conversion kits can be installed in the field and are considered bolt off bolt on upgrades.

If your mud pump has leakage problems, consider that you may be asking your pump to operate in a condition or application for which it was not originally designed.

Jerry Watson, INROCK Equipment Systems, is a member of the Drillmaster Editorial Board. Reports are reviewed by a team of drilling professionals: Watson; Frank Canon, Baroid Industrial Drilling Products; and Mark Van Houwelingen, Vermeer Mfg. Co.

Thank you for your purchase of the new ProMAXX® Bullit® Exhaust Manifold Repair Kit! We engineered this kit for removal and replacement of broken exhaust manifold mounting bolts in over-the-road, marine, commercial, and agricultural heavy-duty diesel engines. Bullit® has also been certified on older V8 engines such as Chevrolet® 350ci and the Ford® 460ci as well.

8. Open the cap on the ProLube™ PMXPPL001 drilling & tapping cutting fluid and insert the mounted PMXSSSC125 tooling bit through the gasket via the hole in the cap to deliver the precise amount necessary for the operation. For larger tooling and subsequent machining, place one drop on the end of the ProDrill™ when necessary. AVOID PENETRATING OIL/SPRAY OR OTHER LUBRICANTS.

TIP: ACTIVATE YOUR DRILL BOTH ON AND OFF TEN TIMES IN ONE-SECOND INTERVALS. THIS STEP CREATES A “SEAT” FOR THE TOOLING BIT AND KEEPS IT FROM FOLLOWING THE ANGULAR BROKEN SURFACE OF THE BOLT. MOREOVER, THIS STEP ALLOWS THE SURFACE OF THE STUD TO CONFORM TO THE CUTTING EDGE OF THE BIT EVENLY DISTRIBUTING THE LOAD ACROSS THE ENTIRE CUTTING EDGE OF THE BIT PROVIDING FOR CUTTING EXTREMELY HARD SURFACES AND PROLONGING TOOLING LIFE.