Curve and Lateral in One Run: The Single-Trip Directional Drilling Strategy Slashing NPT in the Permian Basin

Drilling the curve and lateral in a single trip eliminates one or more full round trips, cutting 12 to 24 hours of non-productive time (NPT) per well. Specialized Energy Services has proven this strategy across 134 wells and 1,974,067 feet drilled in the Permian Basin, Delaware Basin, and South Texas, delivering fastest wells of 2.11 days spud to TD in Dimmit County and 4.13 days in Lea County, New Mexico, with 98.97% tool reliability.

For operators running multi-well pad programs, those saved hours compound fast. A single trip through the curve and into the lateral means fewer connections, less pipe handling, reduced wellbore exposure time, and a smoother hole that runs casing without issue. The math is straightforward: fewer trips equal fewer opportunities for NPT events, and every hour saved on a rig running $30,000 or more per day goes directly to your AFE bottom line.

Why Are Operators Moving to Single-Run Curve and Lateral Drilling?

The shift toward single-run wellbore construction is driven by three converging realities in the Permian and Delaware Basins. First, lateral lengths are growing. According to the American Petroleum Institute, more than 50% of Midland Basin wells completed in 2025 spanned over 10,500 feet laterally, with the longest reaching 21,276 feet (over four miles). Longer laterals amplify the cost of every trip in and out of the hole.

Second, rotary steerable systems (RSS) have matured to the point where they can reliably build angle through the curve and maintain trajectory across the entire lateral without a bit trip. Research published by the U.S. Department of Energy's National Energy Technology Laboratory confirms that RSS generates significantly lower drill-string drag when the pipe is continuously rotated rather than slid, enabling longer single-run intervals and smoother boreholes with reduced tortuosity.

Third, operators are running tighter development programs on stacked bench plays. Every day shaved off one well accelerates the spud date on the next. Single-run execution is not a luxury. It is a scheduling requirement.

How Does a Single-Trip Strategy Reduce NPT?

NPT in directional drilling clusters around a few predictable events: trip-related incidents (stuck pipe, swab/surge losses, formation instability during exposure), bottomhole assembly (BHA) changes between the curve and lateral, and motor failures. Eliminating the trip between curve and lateral removes the highest-risk window for each of these.

Fewer Connections, Less Exposure

Every round trip on a 10,000-foot measured depth well involves roughly 30 connections each way. That is 60 additional connection events with associated risk of swab kicks, surge losses, and mechanical wear. A single-run strategy removes these entirely from the curve-to-lateral transition.

Eliminating Motor Failures as an NPT Source

Peer-reviewed analysis from the Society of Petroleum Engineers (SPE 110714) found that removing the motor from an RSS system in the lateral section reduces the possibility of downhole motor failures and corresponding NPT. In that study, the RSS approach drilled 3,663 more feet of section while finishing 146 hours faster than a conventional build-and-hold assembly, which spent 30.8% of total drilling hours sliding.

Tool Reliability as the Gatekeeper

A single-run strategy only works if the tools survive the entire interval. This is where reliability data matters more than spec sheets. Specialized Energy Services maintains 98.97% tool reliability across its PowerDrive Orbit G2, iCruise RSS, high-torque motors, and GT-MWD measurement-while-drilling systems. That reliability figure is not a lab number. It reflects 1,974,067 feet of actual hole drilled in Wolfcamp, Bone Spring, Spraberry, Austin Chalk, and Eagle Ford formations.

What BHA Configuration Makes Single-Run Wells Possible?

The BHA for a single-run curve-and-lateral well must handle two distinct drilling regimes without a tool change. Building 6 to 10 degrees per 100 feet through the curve demands aggressive steering capability. Holding inclination across a two- or three-mile lateral demands consistent rotary drilling with low tortuosity and high ROP.

Specialized Energy Services addresses this with a purpose-built BHA pairing rotary steerable systems (PowerDrive Orbit G2 or iCruise) with GT-MWD for real-time survey, gamma ray, and inclination data. The RSS provides full 360-degree steering control while rotating continuously, eliminating the slide-rotate-slide cycle that creates doglegs and micro-tortuosity in the curve. The result is a wellbore geometry clean enough to run casing to TD without washing or reaming.

The Role of Real-Time Geosteering and AI Analytics

Keeping the bit in zone across a multi-mile lateral while maintaining the build rate target through the curve requires continuous formation evaluation. Specialized Energy Services deploys live geosteering and AI Driller real-time downhole analytics to monitor formation dip changes, gamma response shifts, and drilling dynamics. This allows the directional driller to make proactive steering corrections rather than reactive ones, reducing the tortuosity that accumulates when corrections come late.

AI Driller processes downhole vibration, weight on bit, differential pressure, and directional tendency data in real time. When the system detects a formation change or identifies an inefficient drilling parameter, it flags the adjustment before the problem manifests as a steering error or an ROP loss. This is the difference between drilling a 15,000-foot lateral at plan and drilling one that requires a corrective sidetrack.

What Results Should Operators Expect from Single-Run Directional Drilling?

Actual results depend on formation, well design, and mud program. But the data from Specialized Energy Services' track record across 134 wells establishes a performance baseline that operators can plan against:

• Fastest well in South Texas: 2.11 days spud to TD, Dimmit County
• Fastest well in the Permian/Delaware: 4.13 days spud to TD, Lea County, New Mexico
• Total footage drilled: 1,974,067 feet
• Tool reliability: 98.97%

These numbers reflect wells where the curve and lateral were drilled in a single run using RSS, GT-MWD, and live geosteering. The spud-to-TD times include all drilling intervals, not cherry-picked lateral-only footage.

How Do Operators Plan a Single-Run Well for Maximum Efficiency?

Execution starts in the well planning phase, not at the rig site. Specialized Energy Services' well planning process builds the directional plan around single-run execution from the beginning, accounting for:

• Kickoff point selection that positions the curve build rate within the RSS capability window, avoiding the need for a dedicated motor run
• Torque and drag modeling that confirms the BHA can reach TD without exceeding top-drive or rotary table limits
• Mud weight and rheology planning that ensures hole cleaning across both the high-angle curve and the horizontal lateral
• Survey program design using GT-MWD to provide continuous inclination, azimuth, and gamma data without requiring wireline surveys that add trip time

As noted by the Drilling Contractor, modern RSS-MWD combinations have enabled operators to complete both the curve and lateral in a single run while navigating significant true vertical depth changes mid-lateral. The technology is proven. The differentiator is the directional team executing it.

Where Does Single-Run Drilling Deliver the Biggest Impact?

The NPT reduction from single-run execution scales with well complexity and lateral length. Operators in the following scenarios see the largest gains:

• Extended laterals (two miles and beyond) where trip time is proportionally larger relative to total well time
• Multi-well pad programs where cumulative saved hours across 6 to 12 wells accelerate pad completion by days or weeks
• Stacked bench development in the Wolfcamp and Bone Spring where tight vertical spacing demands precise wellbore placement with minimal tortuosity
• Infill drilling campaigns where wellbore quality directly affects completion efficiency and parent-child well interaction

Specialized Energy Services operates across the Permian Basin (Midland and Delaware sub-basins) and South Texas, providing directional drilling services from well planning through TD. The team includes directional drillers, MWD operators, and geosteering specialists who have collectively drilled nearly two million feet of hole in these formations.

Take the Trip Out of Your Next Well

If your current directional program still plans a trip between the curve and lateral, you are building NPT into every AFE. Specialized Energy Services has the RSS platforms, MWD systems, geosteering capability, and field-proven reliability data to execute single-run curve-and-lateral wells across the Permian, Delaware, and South Texas. Contact our team at specializedenergyservices.com to review your next well plan and identify where single-run execution can cut days off your spud-to-TD time.