Tech Paper: Remotely Operated Barrier Valve Provides Interventionless Solution for Offshore Vietnam Completion Campaign

Operator adopts completion installation practice that helps reduce risk and save rig time Considering the scope of work necessary to batch-complete six wells within a tight deadline, the initial outline for an offshore Vietnam completion program required multiple slickline well interventions, not only while on the rig critical path but also during simultaneous operations (SIMOPS). This high frequency of well intervention added considerable time, cost, and potential...

Case Study: Illusion® Frac Plug Helps Eliminate High-Risk Millout Operations

Operator removes risk of intervening in a depleted wellbore when milling out composite plugs CHALLENGE – For upcoming high-density well-spacing trials, the operator primarily wanted to remove the risk of intervening in the depleted wellbore when milling out composite frac plugs. Those risks, unmitigated, can put higher-density drilling programs at risk due to the steep costs and time delays created when millout challenges are encountered. SOLUTION...

Using High-Angle LWD Data in Carbonates

LWD solutions are a cost-effective means of evaluating carbonate reservoirs Carbonate reservoirs often show a high degree of geological and petrophysical heterogeneity. The variations stem from differences in localized depositional environment and diagenesis, ultimately dictating the poro-perm, wettability and overall hydrodynamic behavior of the reservoir at field scale. Secondary porosity and fractures are often the objective target when designing well plans, since their presence dramatically improves...

Tech Paper: Offshore Coiled Tubing Interventions Maximized the Value of Watered Out Mature Fields…

Coiled tubing helps sustain production in deep sandstone formations Saqqara is a very challenging field in the Gulf of Suez in the Red Sea area, producing from the deep sandstone Jurassic formation. This formation can sometimes be watered out, with a combination of high H2S and CO2 levels in the production. High sand quality has developed high horizontal and vertical permeability, which challenges any water shutoff...

Tech Paper: Eagle Ford Horizontal Drilling Optimization in Karnes and DeWitt Counties

Optimized drilling methods lead to increased success rate and reductions in rig time The drilling of Eagle Ford horizontal wells in Karnes and DeWitt counties traditionally requires at least two bottomhole assembly (BHA) configurations to drill from surface casing to reach total depth (TD). After a few initial successful attempts at drilling from surface casing to TD using a single BHA (one-run), several problems were encountered,...

Tech Paper: Sourceless Formation Evaluation and Geomechanics While Drilling: A Case History

Optional sourceless porosity tool combination can assist in real-time drilling operations and bypass borehole enlargements A combination of nuclear magnetic-resonance (NMR) and azimuthal acoustic tools has recently become an optional sourceless porosity logging-while-drilling (LWD) tool. This tool combination was used in Kuwait as a part of the bottomhole assembly (BHA) only once before, but this time, we were able to draw a comparison with density-neutron logs...

Case Study: Unloading Completion Fluids Via a Well Test Package at 14 bbl/min

Increased well performance saving rig time and recovering additional base oil CHALLENGE – Shell Australia desired an engineered solution to increase completion fluid unload rate without introducing any significant additional costs. The parameters for the design included: Minimum Unload Rate of 10 bbl/min (14,400 bbl/day) Conform with all local, industry, operator, and service provider standards and regulations Approved by independent authority Utilise existing well test package...

We Can Help Maximize the Value of Your Mature Fields in this Market Downturn

The Halliburton collaborative framework for mature fields’ diagnoses challenges, designs solutions to improve production and increase recovery, and delivers these solutions to enable you to maximize the value of your assets. In a recent project, we found potential for a client to increase their total production by over 250%, with a rate of return of over 200%, within a matter of months. These benefits were forecasted...

Tech Paper: Design Procedure for Cementing Intercalated Salt Zones

Tailoring the right cement design to maintain well integrity across salt zones Wells often require being drilled through and cemented across salt formations. In many parts of the world, salt sections consist of multiple salt types. These include Halite, Carnallite and Tachyhydrite. The last two salt types could move one hundred times faster than Halite and are chemically reactive. Typically, Carnallite and Tachyhydrite occur as streaks...

Tech Paper – Behind Pipe Log Evaluation Study: Deepwater Subsea Abandonments in the Gulf of Mexico

Pipe evaluation techniques can help reduce the cost of removing casing strings during plug and abandonment activities New techniques for well abandonment log evaluations have been under study since 2012 in the Gulf of Mexico (GOM). Legacy practices typically used acoustic methods consisting of cement bond log and ultrasonic scanner devices. The new methods described in this paper consist of adding nuclear sensors to supplement the...