Mature Fields

Case Study: North Sea Operator Trials Innovative P+A Barrier Verification with Potential Savings of 34 Hours Rig Time

Relay™ Tractor System Successfully Deploys Shale Barrier Assessment Tools in Highly Deviated Well Section Challenge – The well section in question was a highly deviated section (72°), meaning that any deployment by gravity alone would be unachievable. Additionally, a restrictive deck footprint meant that any option would need to fit in with a busy rig that had ongoing subsea P&A operations. Good-quality data...

Case Study: New Technology Enables Operator to Achieve A Level of Efficiency Previously Unachievable

Turbo Tech® II Valve and Inflow Tech® Packer with Setting Control Module Enable Wellbore Cleanout in a Single-trip Challenge – A major industry challenge that operators face is being able to reliably operate two compression-set tools in the string at the same time. Since most wellbore cleanout-compatible (rotatable) packers are compression-set, operators typically must compromise with a ball-drop bypass tool or risk an...

Tech Paper: Continuous Use of Fiber Optics-Enabled Coiled Tubing Used to Accelerate the Optimization of Completions Aimed at Improved Recovery and Reduced Cost of Development

FiberLog™ Service and SPECTRUM® Real-Time Coiled Tubing Services help operators in Bakken, North Dakota Continuous improvement in completions designs leading to an increased return on asset development is one of the primary focuses of operating companies. To continue driving towards this goal, an operator looked to continuously optimize completions designs in their acreage in Bakken, North Dakota. There were two parallel paths taken to...

Case Study: HERO™ Bridge Plug Maintains Pressure Integrity in Challenging Well Shut-In Operations

First High-expansion Bridge Plug Installed For Sonatrach Provides Dependable API 11D1 V0 Barrier Challenge – Sonatrach required a low-cost, slickline-deployed retrievable mechanical barrier. The wells contained landing nipple restrictions above the target setting depth. A mechanical barrier was needed to provide pressure integrity for well shut-ins with up to 18 days duration down hole. Due to remote conditions, the retrievable bridge plug (RBP)...

Tech Paper: Maximizing a Mature Field Value by Combining Polymer Flooding, Well Interventions, and Infill Drilling

Learn how these methods can be properly combined at different stages of asset life The perception of better economics and less risk from infill drilling and recompletions are reasons well-focused remedies are preferred compared to reservoir-focused solutions, such as enhanced oil recovery (EOR). However, most literature does not discuss the economic and risk indicators driving this. Using a real example, this work demonstrates...

Case Study: Halliburton Installs World’s First 9 5/8-inch Multibranch Inflow Control System in North Sea

New TAML Level 5 FlexRite® MIC System Enables More Possibilities for Advanced Multilateral Completions Challenge – In March 2017, a Norwegian operator approached Halliburton, needing a new TAML Level 5 multilateral technology (MLT) solution for its mature field in the North Sea. While the operator had been using Halliburton MLT technology successfully for many years in this field, its use was limited to...

Tech Paper: The Final Piece of the Puzzle: 3D Inversion of Ultra-Deep Azimuthal Resistivity LWD Data

3D earth models reveal a reservoir’s true structures, allowing for informed geosteering decisions and accurate well placement Optimal well placement requires three-dimensional (3D) spatial knowledge of the reservoir formation and fluids. Current one-dimensional (1D) inversions of ultra-deep azimuthal resistivity logging-while-drilling (LWD) data recover formation boundaries above and below the wellbore, which are stitched together to form pseudo-2D models (or “curtain plots”) along the...

Case Study: Advanced Completion Solutions for Multizone Water Injection in Soft Sand

World’s First 10,000-psi Triple-zone Intelligent Completion For Water Injection Challenges – A major operator in the Caspian region required pressure support and sweep efficiency for enhanced recovery of a massive offshore oil field. Previous attempts at multizone, high-rate water injection in this soft sand field had mixed results with non-conformance injection profiles and loss of sand screen integrity, leading to sand infill and...

Inflow Tech® Packer Enables Operator to Identify Liner-top Leaks in Long and Complex Big-Bore ERD Well

Packer Performs Successfully in Single Trip, Saving Operator Millions of Dollars in Blowout Avoidance Challenge – This was the longest well that the operator had drilled in the region and the most complex in terms of architecture. The well construction consisted of 12,831 feet (3,911 meters) of mixed 13 5/8-in. and 13 3/8-in. casing, as well as 13,330 feet (4,063 meters) of 9...

Case Study: Single-Trip Multizone Cased-hole Frac Packs and Intelligent Completions Improve Recovery in Subsea Gas Field

Advanced completion solution enables wells to remain fully functional after five years of production Challenge – The operator needed to improve operational efficiencies for this complex subsea field of shallow, low pressure, and weakly consolidated gas reservoirs. The field required a method of dealing with unconsolidated sands, along with the ability to monitor and control each of the six potential layers as the...

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