• optimising shale drilling in the northern north sea

    Optimising Shale Drilling in the Northern North Sea

    The drilling mud weight and the mud composition are two key operational parameters that can be adjusted to prevent hole-instability problems. This paper discusses the methodology and the borehole-stability model employed for optimising the drilling mud weight for the drilling of deviated wells in the northern North Sea. In the course of the

  • shale problems and water-based drilling fluid optimisation

    Shale problems and water-based drilling fluid optimisation

    Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field Article (PDF Available) in Applied Clay Science 49(4):383-393 · August 2010 with 1,811 Reads

  • cgg: optimizing drilling & completions in shale

    CGG: Optimizing Drilling & Completions in Shale

    Optimizing Drilling & Completions in Shale. Shale completions are costly. Selecting the optimum zones, spacing and parameters can increase both efficiency and production. With conditions that can vary quickly along the lateral and from well-to-well, determining this combination takes detailed knowledge of subsurface heterogeneity.

  • optimizing every drop from unconventional shale

    Optimizing Every Drop From Unconventional Shale

    [Editor's note: This story originally appeared in the February 2020 edition of E&P.Subscribe to the magazine here.] The mission to drill and complete new wells in U.S. unconventional shale plays has shifted dramatically in recent years from deploying cookie-cutter and “pump-and-pray” fracturing treatments to a sector driven by economics, advanced technology and greater consideration for

  • keeping shale formation stability by optimizing drilling

    Keeping Shale Formation Stability by Optimizing Drilling

    Shale hydration is the main factor that causes instability problem 3. All drilling fluids were found to cause instability problems due to water phase. Gas drilling fluid, oil based drilling fluid or all-oil drilling fluid can minimize the instability problem which is caused by shale hydration. However, we must be sure that there won't meet

  • shale oil: definition, production, fracking, pros, cons

    Shale Oil: Definition, Production, Fracking, Pros, Cons

    2020-01-31· Shale oil extraction methods are more flexible than traditional oil well drilling. The initial drilling only accounts for 40% of the total cost. Extracting the oil costs roughly $1 million for each well. That made shale oil extraction profitable when oil reached $100 a barrel.

  • optimizing well spacing for shale plays with rate

    Optimizing well spacing for shale plays with rate

    2014-09-03· Optimizing well spacing for shale plays with rate transient analysis . 03 September 2014 IHS Markit Energy Expert. Accurate production forecasting is critical to field development well spacing decisions and economic returns. Production forecasting uncertainty is a barrier to making the best field development decisions. Well spacing in shale plays can have a significant impact on

  • optimizing shale development: another approach by

    Optimizing Shale Development: Another Approach By

    This paper presents a case study that examines in additional detail the drilling and completion of two single horizontal wells vs. a single ML well in an unconventional play. This paper discusses the potential benefits of ML applications and modifications to consider during the drilling and completion of shale and/or tight oil and gas wells

  • deloitte study: optimization could drilling contractor

    Deloitte study: Optimization could Drilling Contractor

    2019-10-25· Drilling Contractor is the only viable magazine exclusively covering the global drilling and completion industry, both land and offshore. The official magazine of the International Association of Drilling Contractors, DC has been published since 1944 and is the longest continuously published magazine focusing on drilling and completion.

  • pdc bits optimized for shale development

    PDC bits optimized for shale development

    for shale development With the rapid increase in drilling activity in North America’s unconventional shale plays, there has been a significant push to develop application-specific technologies to increase economic feasibility. Steven Segal, Smith Bits The Shale PDC bit body design and material improve cuttings evacuation and reduce

  • cgg: unconventional resources

    CGG: Unconventional Resources

    Unconventional Resources. Unconventional resource plays are different. Determining the best drilling locations, completion methods and production plans must be different too. Heavy oil, tight gas and shale plays all require better subsurface information and a deeper

  • optimized unconventional shale development with mpd

    Optimized Unconventional Shale Development with MPD

    drilling efficiency can lead to significant saving in field development cost. Improving drilling efficiency in shale drilling requires reduction in both visible and invisible non -productive time (NPT due to slow ROP). Improving ROP requires MSE optimization and improved drilling efficiency.

  • shale drillers are supersizing fracking oilprice

    Shale Drillers Are Supersizing Fracking OilPrice

    Shale drillers have squeezed more oil out of a given well over the past few years by becoming more efficient in their drilling operations. But the industry is still scaling up, and shale

  • kla-stop liquid polyamine shale additive schlumberger

    KLA-STOP Liquid Polyamine Shale Additive Schlumberger

    KLA-STOP additive is a liquid polyamine shale inhibitor used in polymer-based drilling and drill-in fluids. The additive inhibits shale or gumbo clays from hydrating and minimizes the potential for bit balling by preventing water uptake by clays and by providing superior cuttings integrity.

  • drilling performance monitoring and optimization: a data

    Drilling performance monitoring and optimization: a data

    2019-04-24· Drilling performance monitoring and optimization are crucial in increasing the overall NPV of an oil and gas project. Even after rigorous planning, drilling phase of any project can be hindered by unanticipated problems, such as bit balling. The objective of this paper is to implement artificial intelligence technique to develop a smart model for more accurate and robust real-time drilling

  • drilling hydraulics an overview sciencedirect topics

    Drilling Hydraulics an overview ScienceDirect Topics

    Boyun Guo Ph.D, Gefei Liu, in Applied Drilling Circulation Systems, 2011. 4.1 Introduction. Drilling hydraulics is considered the most important factor in drilling performance. The rate of penetration can be significantly increased using state-of-the-art techniques for hydraulics optimization to minimize drilling

  • the difference between shale oil and oil shale

    The Difference Between Shale Oil and Oil Shale

    Shale oil refers to hydrocarbons that are trapped in formations of shale rock. Fracking is a process that oil companies use to drill down into the layers of shale and open up the rock formations

  • drilling performance monitoring and optimization: a data

    Drilling performance monitoring and optimization: a data

    2019-04-24· Drilling performance monitoring and optimization are crucial in increasing the overall NPV of an oil and gas project. Even after rigorous planning, drilling phase of any project can be hindered by unanticipated problems, such as bit balling. The objective of this paper is to implement artificial intelligence technique to develop a smart model for more accurate and robust real-time drilling

  • wettability alteration to optimize unconventional shale

    Wettability Alteration to Optimize Unconventional Shale

    However, the basic conditions that allow us to alter wettability with salinity are present in shale. While it is early days, there is some published work that shows that wettability alteration by salinity modification works in shale (see our reference page for more information). Finally, the prospect of re-using produced water instead of

  • deloitte: optimizing shale well designs could boost eagle

    Deloitte: Optimizing shale well designs could boost Eagle

    Deloitte’s new research suggests that if Eagle Ford and Permian Basin shale operators were to fully optimize their well designs, they could generate capital efficiency gains of 19% and 23%

  • drilling challenges in extreme step- outs with emphasis

    Drilling Challenges in Extreme Step- Outs with Emphasis

    Drilling Challenges in Extreme Step-Outs with Emphasis on Shales Hernando Jerez Halliburton Drilling Optimization Champion . Drilling Challenges in Extreme Step-Outs with Emphasis on Shales 1 Sh l Pl O iShale Plays Overview 2 Current Experience. 3 Shale Specific Challenges 4 Technology Solutions 5 Case Histories 2. North American Shale Plays 3. History of Shale

  • shale problems and water-based drilling fluid

    Shale problems and water-based drilling fluid

    In drilling fluid, “inhibition” covers all the mechanisms that can reduce or/and eliminate swelling, dispersion, and clay–water interactions in order to enhance shale wellbore stability during drilling. Inhibition percentage is the difference between initial and final cuttings weight recovery after fluid contact.

  • sloughing shale schlumberger oilfield glossary

    sloughing shale Schlumberger Oilfield Glossary

    [Drilling Fluids] A fine -grained, impermeable,sedimentary rock composed of clays and other minerals, usually with a high percentage of quartz . Shale is the most common, and certainly the most troublesome, rock type that must be drilled in order to reach oil and gas deposits.

  • complete course and seminar catalog society

    Complete Course and Seminar Catalog Society

    Optimising Existing Waterfloods: Brian Weatherill, Rob Lavoie. Optimizing Gas Fields Using Integrated Asset Modeling (IAM), and Introduction to Optimizing Shale Gas and Tight Oil Fields: S. M. (Sam) Avasthi, Luiz C. Amado and J. M. (Jay) Avasthi. Optimizing the Value of Oil and Gas Fields from Inception to Abandonment: Alok Jain

  • shale schlumberger oilfield glossary

    shale Schlumberger Oilfield Glossary

    A fine-grained, impermeable, sedimentary rock composed of clays and other minerals, usually with a high percentage of quartz.Shale is the most common, and certainly the most troublesome, rock type that must be drilled in order to reach oil and gas deposits. The characteristic that makes shales most troublesome to drillers is its water sensitivity, due in part to its clay content and the ionic

  • peh:drilling problems and solutions petrowiki

    PEH:Drilling Problems and Solutions PetroWiki

    More than 75% of drilled formations worldwide are shale formations. The drilling cost attributed to shale-instability problems is reported to be in excess of one-half billion U.S dollars per year. The cause of shale instability is two-fold: mechanical (stress change vs. shale strength environment) and chemical (shale/fluid interaction

  • optimization strategies for shale gas asset development

    Optimization Strategies for Shale Gas Asset Development

    Over the last decade shale gas has been the fastest growing source of natural gas in the US [29]. Due to advances in horizontal drilling, multi-stage hydraulic fracturing and a favorable economic environment (from the early 2000s to mid-2014), producers have been able to unlock an expansive resource class previously thought to be un-recoverable

  • optimization of multiple hydraulically fractured

    Optimization of Multiple Hydraulically Fractured

    7. Multiwell Optimization. Response surface methodology (RSM) approach is applied to the optimization of two horizontal well placement based on the Barnett Shale reservoir information. RSM is utilized to approximate a response, in terms of maximum NPV in this work, over a region of interest specified by the range of variability of input factors

  • shale technology showcase hart energy

    Shale Technology Showcase Hart Energy

    With the increasing adoption of gas lift in U.S. shale plays, production engineers are focusing on continuous gas-lift well optimization to deliver an estimated 10% to 20% uplift in production. Optimizing gas-lift systems with existing technology is typically time-consuming, costly and risky. Silverwell overcomes these limitations with a

  • optimizing shale gas production from well to wire

    Optimizing shale gas production from well to wire

    2015-06-25· To extract shale gas from deep inside the earth, workers use a combination of fracking and horizontal drilling. Successful fracking requires 4 to 6 million gallons of freshwater per well, which is

  • valve selection for optimizing shale gas operations

    Valve selection for optimizing shale gas operations

    Valve selection for optimizing shale gas operations /// The primary changes in early shale development involved larger size and scale. Advancements in drilling technology allowed for longer

  • potassium chloride (kcl) amc drilling optimisation

    POTASSIUM CHLORIDE (KCl) AMC Drilling Optimisation

    POTASSIUM CHLORIDE (KCl) is a soluble salt that is an extremely efficient shale stabiliser when drilling hydro sensitive clays and shales. Inhibition is provided through ion exchange; the potassium ion enters between the individual clay platelets in the shale so that they are held together, thus eliminating entry of water from the drilling fluid.

  • shale vs. offshore: gulf of mexico is equally important

    Shale vs. offshore: Gulf of Mexico is equally important

    2017-04-20· These gains were triggered by a gradual learning process, optimization of completion techniques and well configuration, and high grading of drilling locations and equipment. In particular, the shale industry has been able to survive throughout the worst downturn in history, entering 2017 in a much leaner and fitter shape. With continuous focus

  • shale value

    Shale Value

    Shale Value provides unique predictive analysis based on reservoir engineering and PVT analysis to evaluate and optimize shale and tight oil assets. Shale value delivers industry-first truly integrated commercial and technical analyses by utilizing compositional reservoir simulations, proprietary PVT models and machine learning.

  • horizontal drilling an overview sciencedirect topics

    Horizontal Drilling an overview ScienceDirect Topics

    Horizontal drilling is a commonly used technology because drilling at an angle other than vertically can stimulate reservoirs and obtain information that cannot be done by drilling vertically. Horizontal drilling can increase the contact between the reservoir and the wellbore. As displayed in Fig. 8.5, the wells are drilled vertically until a depth that is above the shale oil reservoir is reached.

  • hydraulic fracturing of oil & gas wells drilled in shale

    Hydraulic Fracturing of Oil & Gas Wells Drilled in Shale

    Horizontal drilling and hydraulic fracturing: Simplified diagram of a natural gas well that has been constructed with horizontal drilling through the Marcellus Shale and hydraulic fracturing on the horizontal portion of the well. Drilling pad ready for hydraulic fracturing: Another photo of a drill pad on frac day in the Marcellus Shale gas play of southwestern Pennsylvania.

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