ReSOLVE Family milling tool

Overview

Gain well access in any condition

As a component of the ReSOLVE Family instrumented wireline intervention services, the ReSOLVE Family milling tool uses advanced hardware and intelligence to pulverize debris, scale, and other tubular deposits and mill tubing restrictions, plugs, and other completion accessories. No matter your well's condition, both the standard ReSOLVE™ instrumented wireline intervention service and sour-conditions-rated ReSOLVE iX™ intelligent extreme wireline intervention service employ the milling tool to regain well access without introducing potentially formation-damaging fluids. The tool uses a novel PDC bit design. Optimized for maximum rate of penetration (ROP) when milling hard scale buildup, this mill bit achieves the highest rate of scale volume milled within the power limits of electric wireline.

The TuffTRAC™ wireline tractor or TuffTRAC iX™ intelligent extreme wireline tractor is seamlessly integrated to automatically drive the milling tool forward and resist rotation while the tool’s rotating bit engages obstructions. You are fully informed of the tool’s performance status through real-time downhole measurements visualized in an intuitive dashboard.

With the autonomous, coordinated control of the MillOptimizer™ autonomous milling system, the tractor and milling tool operate as a single intelligent system to maximize milling efficiency and ensure operation success: The MillOptimizer system, eases dependency on the engineer's intervention compared with existing wireline milling tools that need an experienced engineer to constantly monitor and adjust the milling parameters.

WOB and milling torque are autonomously monitored and adjusted to achieve a set torque and minimize stalling.

Bit stalling is immediately detected, if not not prevented—autonomously stopping the tool, disengaging it by reversing the bit and the tractor, and then resuming milling operation without engineer action.

Head-voltage stabilization autonomously adjusts surface voltage to maximize available downhole milling power and ensure equipment reliability.

Over-temperature protection autonomously pauses the milling bit if the motor temperature exceeds the thermal limit to ensure safe operation.

Arm-force regulation continuously monitors and adjusts hydraulic pressure to maintain set arm force during and between milling operations.

Antirotation protection continuously monitors the toolstring orientation and pauses the milling bit to prevent cable damage when required.

ReSOLVE milling tool

Intelligent tractor-powered milling tool to remove scale and tubular deposits and mill completion accessories.

Applications

Scale and tubular deposits removal
Completion accessory milling

Benefits

Well access

Regain well access without introducing potentially formation-damaging fluids

Complex conditions

Access wells with hostile conditions, including sour fluids and high temperatures

Operational efficiency

Improve operational efficiency with high-speed, maneuverable, bidirectional, intelligently tractor-powered milling

Autonomy

Eliminate surface control latency through downhole autonomous milling operations

Features

NACE MR0175 compliant for sour service
Dynamic orchestration of ReSOLVE Family milling tool and tractor for autonomous milling operations using the MillOptimizer system
Real-time monitoring and verification of milling progress
Wide variety of customized bits

Tech Specs

ReSOLVE Family Milling Tool Specifications
	ReSOLVE iX intelligent extreme wireline intervention service	ReSOLVE instrumented wireline intervention service
Output*	Milling torque, WOB, milling bit speed (rpm), relative bearing (tool orientation), milling motor temperature, head tension, casing collar locator (CCL) and optional gamma ray, wellbore pressure, wellbore temperature.	Milling torque, WOB, milling bit speed (rpm), relative bearing (tool orientation), milling motor temperature, head tension, casing collar locator (CCL) and optional gamma ray, wellbore pressure, wellbore temperature.
Milling tool torque*	Adjusted and managed by the MillOptimizer system in real time using WOB generated by the TuffTRAC iX tractor. Max.: 200 lbf.ft [271 N.m].	Adjusted and managed by the MillOptimizer system in real time using WOB generated by the TuffTRAC tractor. Max.:250 lbf.ft [339 N.m].
Milling bit speed*	Adjusted and updatable in real time in acquisition software. Max.: 600 rpm.	Adjusted and updatable in real time in acquisition software. Max.: 450 rpm.
Mud type and weight	All	All
Pressure rating	28,500 psi [196.5 MPa]	20,000 psi [138 MPa]
Temperature range	32 to 350 degF [0 to 177 degC]	32 to 302 degF [0 to 150 degC]
Restriction, min.	2.375 in [60.32 mm]	3.625 in [90.07 mm]
Tractoring hole size, max.	10.5 in [266.7 mm]	15 in [381 mm]
Tool OD*	2.125 in [53.97 mm]	3.125 in [79.375 mm]
Length, min.	38.6 ft [11.76 m]	32.3 ft [9.84 m]
Weight*	354 lbm [160.57 kg]	657 lbm [298 kg]
Tension	25,000 lbf [111205 N]	60,000 lbf [266890 N]
Special applications	NACE MR0175 compliant for H₂O and CO₂ resistance. Custom bits on request. Complete range of standard brushes, hones, and other accessories. Fishing capability: Optional 3⅛- or 2⅛-in [79.38- or 53.97-mm] WIReD™ devices above and below tractors.	Custom bits on request. Complete range of standard brushes, hones, and other accessories. Fishing capability: Optional 3⅛- or 2⅛-in [79.38- or 53.97-mm] WIReD™ devices above and below tractors.

All values are for standard specifications and are subject to change without notice. A dedicated engineering team is available for customizing tools to address your challenges.
* Values depend on configuration.

Case Studies

Wellbore cleanout in action

View all case studies