gravel packing horizontal
HORIZONTAL GRAVEL PACKING | Petroblogger
6. Finish packing equipment down to 5 feet above the final depth of the horizontal section of the pit producer. 7. Proceed to establish the hydraulic packer. 8. Move clean mud in the hole left by the fluid used in the packaging, compatible …
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A novel multi-path sand-control screen and its application in gravel
For instance, open-hole gravel packing is widely applied in the Ledong gas field [10] in the northern South China Sea and in the Bohai oil field [11]. The success of the second marine natural gas hydrate production trial is the most recent evidence for the applicability of gravel packing in deepwater horizontal wells [12].
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JMSE | Free Full-Text | A Solution to Sand Production …
Sand production is one of the main problems restricting the safe, efficient and sustainable exploitation of marine natural gas hydrate. To explore the sand-control effects of gravel packing, experiments that simulate …
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Design of Gravel Packs in Deviated Wellbores
The dynamics of gravel transport in deviated wellbores can be studied most effectively when the process can be visualized. The experiments described here were conducted in two transparent Lucite wellbore models: a small-scale, 3-in. (7.62-cm)-ID model that was 10 ft (3.05 m) long, and a full-scale, 5 1/2-in. (13.9-cm)-ID model that was …
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Optimization and analysis of gravel packing parameters …
Gravel packing is the most promising completion technique for horizontal wells in marine NGH reservoirs, while specific planning and careful execution are …
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Experimental Study on Stimulation of Horizontal Wells Filled with …
The gravel packing of horizontal wells in deep-sea gas reservoirs has a high-intensity filling and compaction effects under the special working conditions. It is necessary to conduct relevant mechanical tests to determine whether the packing-resistance strength of film-coated gravel surface coating is reliable. A particle strength …
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Chapter 6 Gravel Packing
Publisher Summary. Gravel packing is a mechanical means of controlling sand production. If properly designed and applied, this completion technique can provide adequate sand control throughout the life of a well. To obtain an effective gravel-packed completion, it is essential that the pack be properly designed using the proper gravel, …
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OptiPac Openhole Alternate Path Gravel Packing | SLB
The service is highly effective for packing long intervals in vertical, deviated, or horizontal wells; high-flow-rate wells; low-fracture-gradient formations; wells with high-permeability thief zones where annular bridging is a risk; and wells requiring zonal isolation packers. ... uniform gravel packing across the entire interval. Fluids for ...
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AquaPac Openhole Gravel-Pack Service | OHGP | SLB
Plugged Sand Screens Averted in Horizontal Well Through 124% Gravel-Pack Efficiency at –51 degF. ... Open hole gravel packing of reservoir sections drilled with oil based fluid is traditionally performed with an aqueous carrier fluid. This typically involves displacing oil based fluid to aqueous fluid once the gravel pack screen is in place.
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Advanced gravel-pack modelling improves AICD screen completions
Before the end of the alpha wave, gravel at surface was switched to 1.34 SG 16/20 light-weight gravel, and concentration was reduced to 0.25 ppa to maintain constant gravel volume.
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Effective gravel packing considers long-term production
While gravel packing in theory can be used for any well, the advent of extended reach and horizontal wells with very long lateral sections places hydraulic limitations on the installation of ...
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The Gravel Packing Length Determination Method …
Horizontal well gravel packing is the most commonly used sand control technology in offshore oil and gas fields. For extreme conditions such as deepwater, low fracture pressure formations, and …
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Optimization and Analysis of Gravel Packing Parameters in Horizontal
In this paper, technical challenges, evaluation workflow, and deployment constraints of gravel packing in horizontal wells for NGH production are comprehensively analyzed. A virtual horizontal ...
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Gravel Packing
A gravel pack will influence a zone within 100 to 250 feet of the pack, while fracking affects an area up to 5000 feet. At the Inglewood Oil Field, estimates were that frac packs and other gravel packing operations would be used on as many as 90 percent of all new wells, due to the permeable sandstone geology of the area.
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Analysis of Shunted Screen Gravel Pack Process and
The open hole gravel packing in horizontal wells can be divided into three stages: slurry injection stage, α-wave packing stage, and β-wave packing stage []. 4.1. Friction Loss in String. In the slurry injection stage, slurry flows along the string after injection at the wellhead, and the flow resistance in the string can be calculated according to the …
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(PDF) Friction calculation and packing effect analysis for gravel
The system was designed primarily for gravel packing in horizontal wells and is a system with two larger transport tubes and two smaller packing tubes, all mounted to standard sand screens in an ...
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Simulation and application analysis of gravel packing …
1 INTRODUCTION. Although, openhole gravel packing is now viewed as a means of enhancing the reliability, efficiency, and longevity of horizontal sand control completions, 1-6 there are still considerable risks in …
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Gravel placement techniques
The horizontal shunt-screen gravel packs are commonly performed in the squeeze mode (no returns), and fracturing is believed to be occurring during the packing process. Reports are that when gravel packing with shunt screens up to 35%, excess gravel is pumped over the hole volume.
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Horizontal Drilling and Openhole Gravel Packing with Oil
An increasing number of horizontal wells requiring sand control are being gravel packed, particularly in deepwater and/or subsea environments in which …
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Horizontal completions-Conclusion | Oil & Gas Journal
Gravel packing horizontal wells has the advantage of creating superior productivity without the productivity decline observed with stand-alone screens. This conclusion of a three-part series ...
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HORIZONTAL SINGLE-TRIP GRAVEL PACK AND …
The gravel packing of extended reach horizontal wells is pushing the boundaries of economics, technology, and fracture gradients. With an open hole gravel pack completion, the tool string is placed in the well prior to any filter cake removal to prevent fluid losses to the open hole section. This allows for reduced leak off which acts like a closed
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Optimization and analysis of gravel packing parameters in horizontal
A virtual horizontal well located in the clayey-silt HBS at the site SH2, northern South China Sea is taken to describe gravel packing parameters optimization processes in horizontal wells for marine NGH production, and the influences of geological properties and operation parameters on the safety and effectiveness of gravel packing …
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An Overview of More than One-Hundred-Twenty Horizontal Gravel Packing
Four major factors affecting horizontal well gravel pack were studied using a 3D simulator developed for horizontal well gravel packing. The factors included settling effect, gravel concentration, injection rate and carrier fluid viscosity. Three actual field horizontal well gravel pack jobs obtained from the literature were performed using the ...
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Prepacking perforations with gravel
Gravel packing cased-hole completions in vertical and deviated wells are more common than openhole completions, particularly in shaley reservoirs. Reasons for this are several-fold: ... transport fluid. Pump rates are higher than for conventional gravel packing but usually lower than a frac pack. Typical pump rates are in the range of 8 to 12 ...
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Numerical Simulation of Pulsed Gravel Packing …
The gravel packing completion method for horizontal wells has the advantages of maintaining high oil production for a long time, maintaining wellbore stability, and preventing sand production, so it has …
ادامه مطلبTechnology advances boost horizontal openhole gravel packing
Both techniques have been used successfully to gravel pack long, horizontal openhole wells. 1 9 The success rate is about 70% for completely packing long openholes by high-rate water packing ...
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Numerical simulation and experimental study on the
Gravel packing in horizontal wells is generally divided into two stages: alpha-wave packing and beta-wave packing. Gravel in the slurry in the annulus of the …
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The Gravel Packing Length Determination Method and
Horizontal well gravel packing is the most commonly used sand control technology in offshore oil and gas fields. For extreme conditions such as deepwater, low fracture pressure formations, and ...
ادامه مطلبOptimization and analysis of gravel packing parameters …
Gravel packing in a horizontal well for marine NGH production is restricted by the extremely high curvature of the wellbore structure, weak strength and low leak-off …
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COMPLETIONS WFXØ VØ-RATED OPENHOLE GRAVEL
The Weatherford WFXØ openhole gravel-pack system puts an end to these common problems. The first gravel-pack system to incorporate a VØ-rated quick connect, closing sleeve, and gravel pack packer provides reliable, gas-tight reservoir isolation without overstressing the formation. The system provides single-trip, single-point gravel packing,
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