Mature Fields

Mature Field Rejuvenation with Infill Drilling

In this tough economic climate, efficient mature field rejuvenation has become a major challenge for operators looking to balance the books. The most successful mature field rejuvenation projects are ultimately driven by a solid understanding of the existing infrastructure, reservoir geometry, and remaining hydrocarbons in place. Most large mature fields were initially developed long before many of the technologies we use today were available, such...

Riding the Tide During Troubled Times With Mature Fields Management

Mature fields management through integrated asset teams and purpose-driven technology deployment Energy in its various forms is the perennial building block that keeps this world ticking. The oil and gas industry is one of the most significant contributors to the ever evolving growth we see in everyday life. The impact of the current oil price on the global economy has been profound, with crude prices...

Tech Paper: Optimization of Matrix Acidizing With Fluids Diversion in Real-Time Using Distributed Temperature Sensing and Coiled Tubing

Real-time fiber optic contributed to successfully evaluating the effectiveness of fluids and mechanical diversion Carbonate formations in southern Mexico are commonly stimulated using matrix acidizing treatments to increase well productivity by removing near-wellbore (NWB) damage. Such damage can be attributed to accumulation of paraffin and asphaltene deposits during the productive life of the well and, in other scenarios, to fluid invasion while performing workover activities....

Considerations for Waterflooding in Mature Fields Reservoir Optimization

From hot water to working water: observations from the geothermal industry Waterflooding in mature fields can offer significant recovery factor increases and extend the economic life of an asset. However, often the level of detail dedicated to understanding how the reservoir(s) will react to injection at the initial stage is not sufficient to realize the full potential of this optimization technique. From the...

Tech Paper: Selective Stimulation Using Self-Degrading Diverter Deployed During Completion Stage

Challenges, lessons learned and step-by-step procedures to achieve outstanding results In selective stimulation of a well with a complex completion in a naturally fractured carbonate reservoir in a mature field, the use of a self-degrading diverter deployed by rigless means through 1 1/2-in. coiled tubing (CT) was necessary in addition to an effective acidizing schedule using relative permeability modifiers (RPMs) as an additional diverter....

Tech Paper: Coiled Tubing Multistage Horizontal Fracturing Technology Egyptian Case History

Lessons learned to achieve maximum production and improve efficiency of multistage fracturing operations Economic production from marginal reserves in mature fields has always been a major development challenge. Drilling horizontal wells and deploying coiled tubing (CT) multistage hydraulic fracturing stimulation treatments is now a proven solution for mature field development because it exposes more stimulated production zones. Khalda and Umbarka fields are two mature...

Tech Paper: Strain-Gauge Measurements Used to Identify Wellbore Tortuosity

Bending moment used by this new approach to show severity of wellbore tortuosity To determine wellbore tortuosity, the industry uses different methods. Well trajectories can be calculated between survey stations in the wellbore with the resolution of the tortuostity dependent on the survey frequency. Friction factors within the wellbore can be back calculated from surface torque-and-drag information and used as empirical indicators of...

Tech Paper: Far Mobility Evaluation Using Minifrac Analysis in a Deep Sandstone Formation: Case Histories

Hydraulic fracturing treatment is one of the major contributors to increase oil and gas production. In most areas, fracturing has remarkable impacts on gas potential and sustainability. Proper design and implementation of fracturing technology and calibration of fracturing parameters provide significant technical and economic advantages. The minifrac treatment conducted before the main hydraulic fracturing, is a tool often used to conduct some essential evaluations of the...

Tech Paper: Multistage Horizontal Well Hydraulic Fracturing Stimulation Using Coiled Tubing to Produce Marginal Reserves from Brownfield: Case Histories and Lessons Learned

Horizontal multistage fracturing required to achieve production targets Baharyia formation is a common reservoir in the western desert of Egypt characterized as a low quality sand and a heterogeneous reservoir. It is comprised of fine-grained sandstone, thin, laminated, sand-poor parasequences with shale interbeds. The heterogeneity and low permeability of Upper Baharyia reservoirs are the main challenges to maintain economical well productivity. The interest...

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