triplex mud pump operation factory

Manufactured to withstand the toughest drilling and environmental conditions, our K-Series triplex mud pumps are ideal for all drilling applications. This legacy product features a balanced forged-steel crankshaft and Southwest Oilfield Products ‘L” Shaped modules which is essential to minimize wear, noise, and operating vibrations. These attributes are essential when drilling deeper high pressure formations, long laterals and when handling corrosive or abrasive fluids and slurries.

Every American Block triplex mud pump is manufactured and fully load tested before leaving our manufacturing campus, and is available in sizes ranging from 800 HP to 2200 HP. The American Block K1600 HP Mud Pump is also available in a 2000 HP up-grade version, when more HP is needed in the same 1600 HP footprint.

Since the modern mud (or slush) pump was built approximately 60 years ago, the industry has widely accepted the three cylinder or triplex style pump. Triplex mud pumps are manufactured worldwide, and many companies have emulated the original design and developed an improved form of the triplex pump in the past decade.

As in all single acting pumps, the piston exerts a load on the crankshaft. The load is then transmitted to the crankshaft main bearings, which are set in their retainers in the pump frame or housing (see Figure 2).

That the crankshaft is subjected to extreme bending loads and stress concentration areas is one of the drawbacks of the triplex design. Experience shows that all triplex pumps eventually exhibit crankshaft cracking if the operator is using the pump at higher loads and pressures, which is now common as drilling contractors are facing deeper, longer sections to drill. In the past, drillers rarely pushed the performance limitations of triplex pumps; 5,000 psi rated pumps were usually only operated at a maximum of 2,800 psi 90 percent of the time. Now contractors are encouraged to run pumps at the much higher pressures around 4,300 psi, only leaving a safety margin below the pressure relief valve setting. This means the crankshaft is subjected to extended maximum load, which inevitably shortens time to failure, probably exponentially.

Some may suggest that an increase in the number of pistons to improve flow rate will also reduce piston load. Although the middle piston load may be reduced for the same overall pump horsepower, the distance from the main bearings to the middle cam increases, which is not advantageous. For example, a five cylinder pump with the middle cam 50 in from the main bearing will have the same bending moment as a triplex with a 30 in middle cam to bearing distance. However, installing bearings close to the cams can reduce the cyclic failure problems on any pump.

For the drilling industry, the problem with this design is that few have managed to design a crankshaft where bearings can be installed anywhere other than at the crankshaft ends. Consequently, most pumps currently available have crankshafts unsupported close to the middle cam. With the middle area of the crankshaft unsupported, crankshaft failure is inevitable.

A triplex pump with a large load acting on the middle of the crankshaft of approximately 120,000 lbs and a typical distance of about 30 in from middle cam to either main bearing will exert a bending moment of 300,000 lb-ft on the crankshaft adjacent to the main bearing. If the bearing is not spherical, the bending moment where the shaft meets the bearing will coincide with the point on the shaft that the crank can no longer bend because it is restricted by the fixed bearing, which creates huge stress concentration. That load comes and goes cyclically every revolution of the pump. If the pump is rotating at 100 rpm or strokes, then in one week of drilling the crank will experience one million cycles of 300,000 lb-ft effectively switching on and off.

Another symptom of crankshaft deflection or bending is abnormal main gear wear patterns. The high unsupported load in the middle of the crankshaft effectively bows the shaft and consequently the bull gear is moved off alignment, and a strange wear pattern may appear on the gears. Although this is an undesirable occurrence, it is of little importance compared with crankshaft failure. It does explain abnormal wear on a pump used continuously at high pressure.

A pump that addresses these issues may be the solution. A quadraplex has minimal bending moments due to the close proximity of the main bearings to every cam (see Figure 7).

A fully assembled crankshaft is the best and only way to install multiple bearings close to the cams. Even though there is minimal flexure in this design, spherical bearings eliminate stress concentration or point loading. With cam to bearing distances no more than 10 in, the bending moment on a quadraplex crankshaft will be one quarter that of the triplex or five cylinder pump.

In an environment where few advances have been made in mud pump technology in the last 50 years, designers in the mud pump sector of the drilling industry can develop workable solutions to the problems and limitations inherent in triplex pumps.

The future of mud pump design will involve a solution to excessive crankshaft bending moments and address other needed areas of improvement, including piston speed, module replacement in the field, quality of discharge pressure and smoothness of flow-all combined with ease of transportation.

Mud pumps are the heart of a drilling operation. TSM designs and manufactures extremely reliable and easy-to-maintain mud pumps, eliminating unnecessary maintenance and downtime.

Centerline Manufacturing is committed to the highest level of customer service quality.  Every Centerline pump is comprehensively and repeatedly tested at diverse pressure levels to assure that it goes to our customer in perfect operational order. Centerline technicians work to ensure that our customers fully understand the operation of the model being delivered.  If a customer"s pump is down, we understand the importance of timely response and parts availability.  Centerline technicians will assess the problem and make repairs to bring the pump back into new specification. The Centerline mud pump technicians are well versed and qualified to operate and repair any product that is provided to the customer.

Comprehensive testing, performance evaluation and documentation done at Ingersoll-Rand manufacturing plant, Garland, Texas. Results in adoption of the Centerline pump as an optional offering on Ingersoll-Rand drilling rigs

DRILLMEC’s GD Series is the new generation of Gear Driven Triplex Mud Pumps in the ranging from 1600 to 2400 hp for both onshore and offshore drilling operations. The direct gear driven transmission between the AC motor and the cranshaft together with the top mounted configuration gives to the GD Series Mud Pumps a very compact design despite their high volume and high pressure capabilies.

We are committed to total customer satisfaction, achieving excellence in our operations through continuous improvement, development and empowerment of our people, and providing a positive contribution to our community.

The NOV FC-1600 Triplex Mud Pump is made of rugged Fabriform construction and designed for optimum performance under extreme drilling conditions. It is compact and occupies less space, yet delivers unequaled performance. The pumps are backed by several decades of design and manufacturing experience, and are considered leaders in the field.

NOV FC-1600 Triplex Mud Pump is conservatively rated at relatively low rpm. This reduces the number of load reversals in heavily stressed components and increases the life of the fluid end parts through conservative speeds and valve operation.

The NOV FC-1600 Triplex Mud Pump design provides an inherently balanced assembly. No additional counterbalancing is required for smooth operation. No inertia forces are transmitted to the pumps’ mountings.

A Triplex Mud Pump sometimes referred to as a drilling mud pump or mud drilling pump. NOV FC-1600 Triplex Mud Pump is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.

The drilling mud pumps are of immense utility to the oil companies, for the purposes related to oil well drilling. The pumps have the reciprocating piston for circulating the drilling fluid. These units work at high pressure and provide for low noise, smooth operations, provisions for easy maintenance and disassembly, and stable fluid flows among other features. The drilling mud pumps should be procured from experienced and reputed Houston pump manufacturers only, because of their critical nature, and the circumstances and hazards oil well drilling are exposed to.

The best of drilling well pumps manufacturers in Houston and USA offers a comprehensive range of products and are a one-stop destination for many of your oil well service/drilling pumps and other needs. A good company will offer you all the popular and important pumps including the quintuplex pumps, triplex pumps, well service pumps, horizontal direction drilling pumps, false rotary tables, powered packages, and more. These manufacturers will offer you free of cost consultation upon your contact and will advise you on the best products that will suit your application precisely.

The best of well mud drilling pumps product companies in Houston have the necessary services related to oil well drilling and operations. These include welding, testing, and fabrication services. A reputed pump company offers the products at a very affordable cost and under the guidance of expert technicians. The services also include the maintenance and repair services that may be provided to the client on-site. With a proper and comprehensive inventory of spare parts, the best of drilling mud pumps manufacturers in Houston ensure that your business operations never face undesired downtimes.

A noteworthy and popular drilling well pump manufacturer will have decades of existence and experience. These companies are well known to the local and global oil companies and have a sound market base. Their high quality pumps not only offer reliable performance but also adhere to the standards like the standard pertaining to the operational regions as well as hazardous areas.

When you want to buy a drilling well pump for your well mud drilling, acidulation, cementing, and other operations, you should research on the manufacturers and choose one that has proven experience and years of existence and prominence. The company should offer you a comprehensive range of products and services and should take care of all your maintaining services needed as well.

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