Technical Papers

Tech Paper: Advanced Geosteering Technology Promotes the Accuracy of Well Placement in the Thin Reservoirs of China Mature Oilfield

Safely and efficiently maximize reservoir exposure in mature fields After more than a decade of producing oil from the thick marine sand reservoirs in the HaDeXun oil field in the Tarim basin of western China, focus has shifted to the challenges of drilling thinly laminated reservoirs. To maximize efficiency and production, geosteering services, as well as bottomhole assembly (BHA) and bit optimization, were used for the...

Tech Paper: Development and Field Application of an Innovative, Minimally Damaging, Low-ECD Invert Emulsion Fluid for Enhanced Drilling and Completion of HP/HT Wells

Multi-purpose fluid improves drilling efficiency, reduces cost and minimizes production impairment As known the first application experiment for lifting fluids was conducted in Germany in 1797. Then the idea was developed in 1846 utilized compressed air to lift oil from wells. This paper describes the first field application of a high-pressure/high-temperature (HP/HT) organophilic clay-free invert emulsion fluid (OCF IEF) weighted with small-particle-sized (SPS) barite, qualification of...

Tech Paper: Auto-Gas Lift and Smart Well Completion Challenges to Extend Well Life and Running toward Cost Effective Program, Field Case Study

The concept of this completion is to use the gas cap energy from different reservoirs to lift the heavy and high water cut wells As known the first application experiment for lifting fluids was conducted in Germany in 1797. Then the idea was developed in 1846 utilized compressed air to lift oil from wells. In year 1900 the lifting done by compressed air injected through the...

Tech Paper: Developments in Sandstone HF Acidizing: HF Fluid Compatible with Na or K Brines and Carbonate-Laden Mineralogy for High Temperatures (360°F)

Aminopolycarboxylic acid chelating agent helps with the removal of mineral buildup in sandstone formations Using hydrofluoric (HF) acid for the removal of clays and silica minerals impairing permeability in sandstone formations requires fluids free of sodium or potassium ions. High temperatures (> 300°F) further limit HF acid use and its effectiveness because of potentially damaging effects to the formation and its corrosivity. This paper discusses laboratory testing of...

Tech Paper: Maximizing the Life of the Well Through Successful Cementing Technologies in Thermal Wells

 High-performance thermal self-healing cements prove successful in extreme conditions Reversing the natural process of pressure decline in hydrocarbon deposits and decreasing damage in the sandface caused by drilling, production, etc. are the most significant operator objectives for maximizing the extraction of hydrocarbon reserves. This paper discusses the successful application of cementing technologies in thermal wells to maximize the life of the well. In areas, such as the...

Tech Paper: Intelligent Completions Customized to Meet the Challenges of Malaysia Reservoirs: Work Flow and Case Histories

Improving intelligent completion designs helps operator reduce cost and improve productivity Intelligent well completions (IWC) have been installed in Malaysia since 2003, but only recently has this technology become widely accepted. This acceptance has resulted from recognition of values such as reduced capital cost, improved productivity, and increased ultimate recovery. Initial documentation on IWC capabilities was presented in 2012 (Masoudi et al. 2012). Since then, additional...

Tech Paper: Use of a Salt-Tolerant Friction Reducer Improves Production in Utica Completions

New salt-tolerant polymer helps to improve well cleanup and provide additional benefits to field operations As longer laterals are drilled in the Utica to maximize acreage cover, the stimulation treatments must still establish high pumping rates to effectively treat multiple clusters even within the stages out near the toe area of the lateral. Overcoming this additional pipe friction as well as using various water sources of...

Tech Paper: Learnings from Cementing the Deepest Expandable Casing under HP/HT Conditions in Mediterranean Offshore Egypt

The design and execution phases are important pieces when cementing under difficult conditions The adequate cementation of an expandable tubular can be challenging but is essential for long-term casing integrity. Such cementing jobs are especially crucial under high-pressure/high-temperature (HP/HT) conditions for many reasons, including but not limited to rigorous HP/HT laboratory testing schedules, selection of proper cement volume and fluid density, etc. A failed cement job in...

Tech Paper: Successful Application of Plug and Hydrajetting Technique during Multistage Fracture for Horizontal Wells with Coiled Tubing

Reducing NPT up to 30%, this Coiled Tubing method allows for continuous completion of fracturing stages This paper presents an alternative for operators regarding tools and methods using coiled tubing (CT) during the implementation of horizontal completions. To help address challenges faced developing horizontal completions, both cemented liners and open holes have been widely used in conventional and unconventional reservoirs. Various completion techniques have evolved from traditional...

Tech Paper: Successful Utilization of E-line Tractor in Horizontal, High Pressure and High Temperature Gas Wells

This state-of-the-art technology helps meet the technical objectives of large rigless production enhancement Growing gas resource exploitation in Saudi Arabia has increased activity in drilling deep, high pressure gas reservoirs with marginal to low permeability. Such wells generally require stimulation operations to induce production. To increase the reservoir contact area, a significant number of wells are constructed with long reach horizontal sections. Multistage fracture operations are primarily...

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