TOPICS OF INTEREST
DIRECTIONAL/EXTENDED REACH WELLS
Overcoming Challenges and Optimizing Liner Deployment in Long Laterals
A North Sea field development included installation of long 4½-in. completion liners in the horizontal reservoir sections of each well. To minimize overall risk, the operator planned to use managed-pressure drilling (MPD).
Next-Generation High-Torque Connection for Extended-Reach Wells
This paper demonstrates how the latest generation of connections has been tested and validated to extreme loads before being installed in the wellbore.
Remote Directional Drilling and Logging in the Arctic
Few locations present as many challenges for drilling as the Arctic. It is one of the most hostile environments in the world, with some of the most remote locations, the toughest logistics challenges, and the largest gaps in infrastructure on the planet.
New Technology in a Mature East Malaysian Field
This paper describes the first job in southeast Asia in developing horizontal-well placement in a turbidite environment.
New Rotary-Steerable System Delivers High Dogleg Severity, Improves Penetration Rate
A new rotary-steerable system (RSS) was designed to give geometrically greater dogleg-severity (DLS) capability while still being able to withstand the increased bending stresses.
Bending Rules With High-Build-Rate Rotary-Steerable Systems
This paper explores the applications, benefits, and value of a high-build-rate rotary-steerable system (HRSS) capable of delivering dogleg severity (DLS) greater than 18°/100 ft.
Horizontal and Complex-Trajectory Wells
Advances made in horizontal and complex-trajectory wells demonstrate that, despite this historic downturn, the industry has kept innovating and optimizing to bring more-efficient solutions to the table.
A New Approach for Optimization of Long-Horizontal-Well Performance
Experience has revealed that frictional pressure loss in the wellbore hinders the full use of the entire length of the horizontal well. This paper presents a new approach to maximize the use of the full length of long horizontal drainholes.
Use of Microseismic Monitoring To Compare Completion Designs
This study compares the performance of openhole-packer completion systems with that of cemented-liner completion systems in the northern Montney gas resource play.
Friction-Load Redistribution for Extended-Reach- and Horizontal-Well Completions
In horizontal and extended-reach wells in which long completions are run into highly deviated or lateral zones, large compression loads arise because of running friction.
Completion and Well-Spacing Optimization for Horizontal Wells in Pad Development
In organic shales, hydraulic fracturing is important for optimizing the production of horizontal wells. For a standalone lateral, the propped surface should be maximized to increase production. In the case of a pad, well spacing is an additional factor.
Model for a Shale-Gas Formation With Salt-Sealed Natural Fractures
This paper offers an alternative explanation for the early boundary-dominated flow related to dissolution of salt-sealed natural fractures in the shale.
Toe-Up or Toe-Down: Does It Really Matter?
An analysis studied whether a well's toe could be affecting the production performance.
New Intelligent Completion System Enables Compartment-Level Control in Multilateral Wells
Although early inflow control devices and intelligent completions (ICs) were introduced almost 20 years ago, completion technology has not kept pace with advancements in drilling technology.
Drilling Improvements Work Toward the Perfect Well in the Eagle Ford
In the Eagle Ford, an integrated approach to engineering and operations was key to optimize performance and improve understanding of the area.
Breaking From the Norm To Reach Marginal Offshore Fields
A number of companies are pushing for alternative approaches to offshore development that seek to access marginal reservoirs. Their differing and unique ideas call for a departure from the usual playbook, but share a common goal of slashing capital costs.
Optimization of Single-Trip Milling Using Large-Diameter Coiled Tubing
Larger-diameter coiled tubing recently has been used to perform millouts because of its improved set-down force and increased annular velocities for cleanout purposes. Service companies and operators have reduced the number of wiper trips when using larger-diameter CT, to save time and money.
Getting a Feel for the Rock
The force required to drill through a rock is a direct test of its strength and stiffness. Developing a reliable measure of the properties of rock based on the force required to drill a long lateral is a large challenge.
New Rotary Shouldered Connection Expands Capability of ERD Operation
Eight of the world’s 10 longest wells have been drilled by ExxonMobil as operator of the Sakhalin-1 project in Russia.
The development of multilateral wells and long-reach wells has become important to maximizing recovery for many fields. These technologies are often applied in offshore environments, where large reservoir areas are drained from one or more platforms.
Magnetic Referencing and Real-Time Survey Processing Enable Tighter Spacing of Wells
Wellbore position is computed from survey measurements taken by a measurement-while-drilling (MWD) tool in the bottomhole assembly (BHA).
Innovative Tool Improves Hole-Cleaning Efficiency in Extended-Reach Wells
Saudi Aramco operates a large offshore oilfield development that has driven achievements in multilateral and extended-reach directional wells.
Optimization of Upper Burgan Reservoir Multilateral Well With Inflow-Control Device
This paper discusses the first multilateral well with a Level-4 junction combined with an inflow-control device (ICD) planned, designed, and drilled in the Upper Burgan reservoir of Raudhatain field, north Kuwait.
Designing and Testing of New Rotary-Steerable System for Use Onshore
This is the teaser
The Search for Measures of Drilling Imperfection
The only wells that are straight or follow a smooth curve are in the pictures in well plans. Real wellbores are shaped by the mechanics of directional drilling tools, the skills and attention of drillers, the force of gravity, and the path followed by hydrocarbon-rich seams of rock.
Smart Horizontal Wells for Development of Thin-Oil-Rim Reservoirs
For thin-oil-rim reservoirs, well placement, well type, well path, and the completion methods must be evaluated with close integration of key reservoir and production-engineering considerations.
Optimizing Spacing of Multistage-Fractured Horizontal Wells in Gas Reservoirs
This paper gives the recommended MSF horizontal-well spacing for several development scenarios in Saudi Arabian gas-reservoir environments.
Bilinear Flow in Horizontal Wells in a Homogeneous Reservoir
This paper offers insight into an integrated effort at combining analytical information, numerical well-test models, and geological evidence to explain the reservoir behavior observed in the Huntington field.
Horizontal and Complex-Trajectory Wells
There is no doubt that horizontal and complex-geometry wells have contributed significantly to the reliable supply of affordable energy, resulting in improvements to the quality of life of people around the globe.
ICD Well History and Future Use in a Giant Oil Field Offshore Abu Dhabi
As part of a project that involves the use of four artificial islands to drill and complete more than 300 extended-reach-drilling (ERD) wells in a giant offshore oil field, several completion designs have been piloted for brownfield development.
17 May 2017