Direct Push Drill Rigs

Pioneering Solutions in Contaminated Environments

For drillers working in remote settings where accessibility is restricted, or in compact areas demanding minimized height and weight, having robust and powerful equipment is crucial. Geoprobe® offers direct push drill rigs that can be conveniently equipped with two wheels powered by an independent energy source. These can be adapted into tracked models that navigate dense forests or easily shift onto small aircraft or shipping containers. Additionally, they are designed for heli-portability, allowing them to be disassembled into three manageable sections for efficient assembly at the job site.

Are you looking to discover more about tracked drill rig? Reach out to us today for expert guidance!

Establishing a prominent presence within the environmental sector, Geoprobe® is revolutionizing the direct push drilling domain with its superior line of hydraulically-powered rigs. Since inception, beginning with a machine crafted for the Environmental Protection Agency, Geoprobe® has diligently engaged with its clientele to foster advancements in the direct push drilling landscape. This pursuit of progress has demanded ongoing investments in innovation, honing the functionality of a variety of drill rigs, including those intended for limited access, alongside larger combination rigs.

Machines classified as direct push drilling units inherently push tools and sensors into the ground. This method eschews traditional drilling processes that remove soil or create pathways for tool accessibility. The Geoprobe® direct push drill rigs available leverage relatively low vehicle weight and percussion energy for the advancement of tool strings.

With our diverse range of drill rigs, take on various direct push tasks extending to depths exceeding 100 feet when soil and geological conditions permit, such as:

• Acquiring continuous soil cores or discrete soil samples
• Driving samplers to retrieve groundwater or vapor samples
• Installing permanent sampling implants and air sparging systems
• Deploying conductivity sensor probes to analyze surface lithology
• Creating small monitoring wells

In the realm of direct push drilling, the array of drill rigs we provide has replaced traditional methods, emerging as the favored option for collecting subsurface samples, particularly in unconsolidated sediments.

With service hubs situated in North Carolina, Pennsylvania, Kansas, and Florida, you have access to premier drill rig service support for routine upkeep or comprehensive refurbishment efforts. This ensures your direct push drilling rigs are consistently operational and generating revenue. Our service personnel are supported by an adept engineering team, delivering concrete solutions rather than temporary fixes to challenges. Furthermore, our production protocols guarantee that your direct push drilling rigs are crafted with precision and thoroughly vetted to facilitate smoother service interventions.

Designed with an emphasis on effective and safe environmental sampling, investing in Geoprobe® direct push drilling rigs allows you to address contamination challenges while enhancing your productivity and profitability.

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Our dedicated customer service team is eager to engage with drillers about their specific projects and business aspirations to identify the optimal drill rig options and relevant tooling for necessary samples. Our mission is to help simplify your demanding tasks, increasing efficiency while allowing for more time with family. Collaborate with us to minimize your on-site hours while maximizing your personal time.

Horizontal directional drilling (HDD) has become a widely utilized trenchless installation technique. This segment examines the key components of HDD rigs, operation mechanisms, standard maintenance, and the advantages of employing HDD.

Key Components of Drill Rigs

An HDD rig is composed of several crucial parts. At its core, the rig includes drill rod storage, where rods are assembled to create a drill string that advances the drill bit. Positioned behind the drill bit is a sonde housing that emits signals received by a technician with a transmitter-receiver setup, enabling precise localization tracking. The processed data informs the operator, allowing for navigation and drilling direction.

A tank and pump are essential for supplying drilling fluid to the rig, ensuring uninterrupted circulation throughout the drilling operation. (Read also: An In-Depth Look at the Role of Drilling Fluid Systems in Trenchless Construction)

Mechanism of HDD Installation

The HDD process unfolds in three stages: pilot hole development, enlargement of the pilot hole, and hole conditioning. During these stages, hydraulic fluids are employed to assist in softening soil, cooling drill bits, and lubricating the bore. For rock formations, the use of tougher drill bit materials like tungsten carbide or Polycrystalline Diamond (PCD) is essential, in addition to hydraulic force.

The initiation of HDD involves drilling a pilot hole, beginning at the entry point and culminating at the exit point, following a meticulously designed profile. Drill bits are employed to first create a smaller opening, guided by a directional system throughout the pilot hole drilling to adhere to the intended profile. The equipment utilized for drilling depends significantly on the geotechnical investigation results, crossing dimensions, and the installer’s expertise.

As a standard, the entry angle of the drill string ranges from 8° to 16°. The advancement of the drill string relies on a synergy of rotational torque and thrust from the rig. This allows the operator to adjust the direction and effectively steer the pilot hole along its predetermined layout. Most drill bits are designed with a slant face to facilitate navigation through various soils, whether they be clay, sand, or rock. (Read also: The Right Drill Bit for Soft, Medium & Hard Ground Conditions)

A walkover tracking system monitors the bore's position, comprising a transmitter and receiver. The transmitter consistently emits a magnetic signal that a portable handheld receiver captures, starring the operator to oversee bit orientation and directional changes of the bore. For straight-line progress, the rig operator both rotates and pushes the drill string while, to change direction, they stop rotation and continue advancing the string, allowing trajectory adjustment towards the bit's angled face.

At the designated exit site, drill bits transition to larger reamers for appropriate hole size enlargement according to the pipeline’s diameter before retracting the pilot bore back toward the entry location. For projects requiring small diameter crossings, pipeline installation can occur directly within the pilot hole. Nevertheless, most cases necessitate enlarging the pilot hole through one or several pre-reaming stages, tailored to the final diameter and soil characteristics.

Once pre-reaming concludes at the desired diameter and the hole is sufficiently cleaned, pipeline assembly is prepared as a singular string positioned on rollers. This method initiates what’s known as pullback, whereby a reamer connects to the drill pipe. Behind this, a swivel permits the drill pipe to rotate the reamer without transmitting torque. The drill pipe is ultimately pulled back to the entry point, finalizing the pipeline installation, with the finished diameter verified using a swab tool.

Drilling Rig Maintenance Practices

Drilling rig maintenance practices can differ based on usage. This portion offers a brief overview of standard maintenance protocols: (Read also: Proper Maintenance for Drill Rig Equipment)

• Routine daily inspections.
• Lubrication management.
• End-of-day cleaning procedures.

Routine Daily Inspections

Each rig is accompanied by a service manual outlining operator recommendations for service operations, including checks on hydraulic pumps, fluids, oils, and other components. The manual includes daily inspection routines. Diligently following these processes helps unearth any lingering concerns from prior use, facilitating early intervention. Investing a few minutes daily in these checks translates to significant savings by preventing future costly damages.

Lubrication Management

Proper lubrication and rotation maintenance of drill rig components are vital for longevity and operational success. The specific standards for lubrication vary by manufacturer, optimizing thread compression and tolerance. Maintaining automated grease systems for hydraulic pressure ensures contractors achieve optimal torque levels, reducing the risk of unthreading or failures downhole.

End-of-Day Cleaning Procedures

At the conclusion of each workday, it’s advisable to clean each machine thoroughly. Manufacturers typically equip machines with high-pressure pumps to facilitate efficient end-of-day cleaning. During these cleaning sessions, operators should watch for potential hydraulic leaks, preemptively addressing issues before they escalate into substantial problems. While maintenance tasks may seem laborious, they are vital in sustaining successful project outcomes. Routine checks and care keep equipment in peak operating condition, ultimately saving both time and money.

Advantages of HDD

HDD is recognized as a premier trenchless technique, particularly for crossing expansive rivers. This method provides rapid completion times in congested environments, exhibiting less ground disruption, cheaper costs, and minimal invasiveness compared to traditional open-cut methods. Furthermore, HDD can typically be executed by smaller crews, translating into reduced labor costs and more effective budget utilization for projects.

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