A downhole gravel packing apparatus, comprising: a tubular assembly for being arranged within a wellbore to define an annulus between said tubular assembly and a wall of the wellbore; and a control valve provided within the tubular assembly to control flow of a gravel pack carrier fluid between external and internal regions of the tubular assembly, the …

A well screen and method for gravel packing a wellbore interval wherein a low-viscosity slurry can be used to distribute the gravel. A well screen having a plurality of spaced intermediate manifolds i

Patent: Apparatus for gravel packing wells ...

Gravel pack design & evaluation. A gravel pack is simply a downhole filter designed to prevent the production of unwanted formation sand. The formation sand is held in …

Method and apparatus for gravel packing an open-hole wellbore are disclosed. The apparatus includes a sandscreen disposed in the wellbore thereby creating an annulus between the wellbore and the sandscreen for receiving a gravel slurry. The apparatus further comprises a tubular member or wash pipe which is concentrically disposed in the ...

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A gravel packing apparatus has first and second joints each including a sand control screen assembly a slurry delivery subassembly positioned exteriorly of the sand control screen assembly. Each slurry delivery subassembly includes a transport tube extending longitudinally along the sand control screen assembly. A jumper tube extends between …

Find the equipment you need for your sand control operations. Schlumberger provides surface pumping and blending equipment, as well as data acquisition and control …

An apparatus for gravel packing a screen positioned adjacent the casing perforations of a subterranean well incorporates an annular sealing surface immediately above the gravel pack screen. A flapper valve is mounted for movement about a horizontal pivot axis into engagement with the annular valve seat. The flapper valve and the cooperating ...

A gravel packing apparatus has first and second joints each including a sand control screen assembly having a filter medium positioned exteriorly of a base pipe and a slurry delivery subassembly positioned exteriorly of the sand control screen assembly. Each slurry delivery subassembly includes a transport tube extending longitudinally along at least a …

A gravel packing apparatus includes a substantially tubular-shaped base pipe (12) having a plurality of apertures (14) disposed along part of its length and a dual-wall sand screen (16) coaxially secured to the base pipe (12). The dual-wall screen (16) is substantially permeable to fluids and impermeable to sand. The apparatus provides a plurality of fluid …

The Baker Hughes SC-XP™ gravel-pack and frac-pack system offers faster conveyance rates, higher bottomhole temperature, and a higher …

The U.S. Department of Energy's Office of Scientific and Technical Information

The diverter valve may be utilized with gravel packing apparatus which comprises shunt tubes and with gravel packing apparatus that does not utilize shunt tubes. [0012]Additionally, if reactive shale is present in the downhole formation, a diverter valve may be placed in the wash pipe proximate the shale to intentionally create a bridge …

Patent: Method and apparatus for gravel packing a zone in a well Method and apparatus for gravel packing a zone in a well. Full Record; Other Related Research Related Research

Series of experiments were performed to simulate the invasion of formation sand into and the plugging process of gravel-pack at different viscosities and flowing rates of fluid. Two types of ...

A gravel packing assembly has first and second joints each including a sand control screen assembly having a filter medium positioned exteriorly of a base pipe and a slurry delivery subassembly rotatably mounted exteriorly on the sand control screen assembly. The slurry delivery subassembly includes at least one transport tube extending …

Method and apparatus for gravel packing an open-hole wellbore are disclosed. The apparatus includes a sandscreen disposed in the wellbore thereby creating an annulus between the wellbore and the sandscreen for receiving a gravel slurry. The apparatus further comprises a tubular member or wash pipe which is concentrically disposed in the …

A gravel-packing apparatus and method is disclosed which involves a movable sleeve over a screen. The screen is fixed to a packer downhole while the sleeve is operated from the surface. As the sleeve is lifted to expose more of the screen, the granular material deposits along the outside of the screen and through the exposed perforations, starting …

A wellbore apparatus and method for use in a wellbore for completion and production are disclosed. The apparatus comprises an outer permeable material (15) in the wellbore comprising a first basepipe section (11) with at least a portion of the basepipe is perforated (21), the first basepipe is inside the outer permeable material (15) and at least part of the …

Method and apparatus for gravel packing an open-hole wellbore are disclosed. The apparatus includes a sandscreen disposed in the wellbore thereby creating an annulus between the wellbore and the sandscreen for receiving a gravel slurry. The apparatus further comprises a tubular member or wash pipe which is concentrically disposed in the …

A gravel-packing apparatus and method is disclosed which involves a movable sleeve over a screen. The screen is fixed to a packer downhole while the sleeve is operated from the surface. As the sleeve is lifted to expose more of the screen, the granular material deposits along the outside of the screen and through the exposed perforations, starting …

A gravel packing apparatus (210) having expandable channels (244) comprises first and second tubulars (212, 214) forming an annulus therebetween. First and second base plates (230, 232) are positioned within the annulus, each base plate (230, 232) having at least one receiving notch (234, 236). An expandable channel (244) having first and second …

A gravel packing apparatus has first and second joints each including a sand control screen assembly a slurry delivery subassembly positioned exteriorly of the sand control screen assembly. Each slurry delivery subassembly includes a transport tube extending longitudinally along the sand control screen assembly. A jumper tube extends between …

The gravel-pack sand size is determined by multiplying the median formation grain size by 6. This value is the median gravel grain size. With a straight edge, construct the gravel curve so that its uniformity coefficient, C μ, is 1.5. The actual gravel size can be determined by the intercept of gravel curve with the 0 and 100 percentile values.

The U.S. Department of Energy's Office of Scientific and Technical Information

The U.S. Department of Energy's Office of Scientific and Technical Information

NEW Patent CD for Gravel packing apparatus having an integrated sensor and method for use of : Everything Else

A gravel packing apparatus is provided, including first and second joints, each including a sand control screen assembly including a base pipe and a filter medium positioned exteriorly of the base pipe; and a slurry delivery subassembly positioned exteriorly of the sand control screen assembly, the slurry delivery subassembly including a ring assembly …

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