US20130068461A1 - Sealing body for well perforation operations - Google Patents
Sealing body for well perforation operations Download PDFInfo
- Publication number
- US20130068461A1 US20130068461A1 US13/623,376 US201213623376A US2013068461A1 US 20130068461 A1 US20130068461 A1 US 20130068461A1 US 201213623376 A US201213623376 A US 201213623376A US 2013068461 A1 US2013068461 A1 US 2013068461A1
- Authority
- US
- United States
- Prior art keywords
- sealing body
- well perforation
- operations according
- ribs
- perforation operations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 212
- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 25
- 230000005484 gravity Effects 0.000 claims description 26
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 25
- 229910000883 Ti6Al4V Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 abstract description 12
- 239000011257 shell material Substances 0.000 description 31
- 230000004913 activation Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000003209 petroleum derivative Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004963 Torlon Substances 0.000 description 1
- 229920003997 Torlon® Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
Definitions
- the present invention relates to a sealing body for use in a perforating gun for well perforation operations such as oil/gas well perforation operations.
- Contemporary well drilling operations in the oil and gas industry may employ a specialized completion operation that facilitates the flow of fluids and gasses from a producing geological formation into a well bore.
- this operation involves the insertion of a metal tubular casing into a bare well bore, down to the full depth of the drilled hole.
- This casing strengthens the bore wall, ensures that no oil or natural gas seeps out of the well hole as it is brought to the surface and keeps other fluids or gases from seeping into the formation through the well.
- a cement mixture may be pumped down-hole for added protection and structural integrity of the well. This mixture fills the annular space formed between the casing outside diameter and well bore and is left for a period of time to harden.
- the composite wall section of the well bore is perforated or pierced to permit the passage of liquid and/or gaseous hydrocarbons into the well.
- a tool called a perforating gun may be used to create an array of perforations at various predetermined locations in the well.
- the perforating gun typically is assembled with a plurality of directionally shaped charges, aligned in such a way that at least one side of the casing is completely penetrated upon firing of the gun.
- the hole penetrations are formed by vaporizing local casing material by one or more jets of intense heat and pressure emitted by the gun. The jet continues for some distance beyond the composite wall. Depending on the type of formation and strength of the charge, this distance may be twelve inches or more.
- Sealing bodies comprised of polymeric solids are prone to breakage and failure during the pressurization of the perforating gun. If the sealing body is damaged or breaks during use, zone pressure needed to trigger the perforating gun is lost and the process must be repeated with a new sealing body. The failed sealing body may need to be drilled out of the seat. Failure of the polymeric sealing body often occurs when the sealing body shears off at the seat contact line, with the lower portion of the sealing body being lost down hole. If a sealing body is recovered after the perforating gun fires, the sealing body may be broken or damaged, or stressed at the point of contact between the sealing body and the seat and thus the sealing body cannot be reused. Because of these characteristics, sealing bodies comprised of polymeric solids typically are not re-used for multiple perforation operations.
- a method of performing well perforation operations comprises introducing a sealing body into a seat positioned in a well bore, the sealing body comprising a shell defining a closed cavity, wherein the shell is comprised of a metal alloy; and wherein specific gravity of the sealing body is less than or equal to 1, where 1 is the specific gravity of water; and pressurizing a portion of the well bore up-hole from the seat to a predetermined pressure threshold for triggering a perforating gun.
- FIG. 1 a is a cross section view of a well bore
- FIG. 1 b is a enlarged view of a portion of the cross-section of FIG. 1 a;
- FIG. 2 is a close-up view of an embodiment of a sealing body seated in a ball seat
- FIG. 4 a is a transparent isometric view an embodiment of a sealing body
- FIG. 4 b is a perspective cutaway view of the sealing body
- FIG. 4 c is a side view of the sealing body
- FIG. 4 d is a cross-section view of FIG. 4 c along the line A-A
- FIG. 4 e is a side view of the sealing body
- FIG. 4 f is a cross-section view of FIG. 4 e along the line B-B;
- FIG. 5 a is a transparent isometric view an embodiment of a sealing body
- FIG. 5 b is a perspective cutaway view of the sealing body
- FIG. 5 c is a side view of the sealing body
- FIG. 5 d is a cross-section view of FIG. 5 c along the line A-A
- FIG. 5 e is a side view of the sealing body
- FIG. 5 f is a cross-section view of FIG. 5 e along the line B-B;
- FIG. 6 a is a transparent isometric view an embodiment of a sealing body
- FIG. 6 b is a perspective cutaway view of the sealing body
- FIG. 6 c is a side view of the sealing body
- FIG. 6 d is a cross-section view of FIG. 6 c along the line A-A
- FIG. 6 e is a side view of the sealing body
- FIG. 6 f is a cross-section view of FIG. 6 e along the line B-B.
- FIGS. 1 a and 1 b illustrate high level views of a well 10 , a wellbore casing 12 and perforation gun system 14 .
- the perforation gun system 14 a portion of which is shown in FIGS. 1 a and 1 b, is used to perforate predetermined sections of the wellbore casing 12 to permit the passage of liquid and/or gaseous hydrocarbons into the well 10 .
- the perforation gun system 14 comprises one or more perforating guns 16 a, 16 b, 16 c.
- the perforating guns 16 a, 16 b, 16 c are fired at planned locations within a number of pressure activation zones 18 a, 18 b, 18 c in the well 10 .
- a sequence of perforation operations may be performed typically starting with triggering the perforating gun 16 a furthest down-hole, then the next perforating gun 16 b down-hole and so forth, in order to perforate the wellbore casing 12 .
- Triggering the perforating gun 16 may be accomplished by a number of means.
- One method involves the use of a pressurized triggering technique, within a pressure activation zone 18 defined by a seat 20 installed at a pre-determined location within the wellbore casing 12 down-hole from the corresponding perforating gun 16 .
- a pressurized triggering technique within a pressure activation zone 18 defined by a seat 20 installed at a pre-determined location within the wellbore casing 12 down-hole from the corresponding perforating gun 16 .
- an internal mechanism (not shown) in the perforating gun 16 is activated and the perforating gun 16 fires a plurality of shaped charges through the wellbore casing 12 and into the geological formation surrounding the well 10 .
- Each pressure activation zone 18 coincides with a geological formation planned for perforation and spans the up-hole and down-hole sides of a perforating gun location.
- the perforating gun position is carefully chosen to intersect with the geological production zone.
- the seat 20 receives a sealing body 24 that corresponds or is complementary to the seat 20 .
- the seat 20 receives the sealing body 24 in order to form a temporary tight pressure seal and define the pressure activation zone 18 in the well 10 .
- the perforating gun system 14 includes multiple seats 20 a, 20 b, 20 c situated down-hole of the perforating guns 16 a, 16 b, 16 c.
- the sealing body 24 is generally spherical and may be used with existing perforating guns 16 and seats 20 , such as a ball seat 26 illustrated in FIG. 2 .
- the ball seat 26 has a conical face 28 for receiving a corresponding generally spherical sealing body 24 .
- the sealing body 24 may be oval, oblong or generally egg-shaped or bullet-shaped.
- the sealing body 24 has a biased weight distribution in order to ensure the sealing body 24 is oriented to contact the seat 20 and create a tight pressure seal with the seat 20 after the sealing body 24 is introduced into the well 10 .
- Embodiments of a sealing body 24 according to the present disclosure are described in greater detail below.
- the smallest sized sealing body 24 a is pumped down the well 10 and travels through seats 20 b, 20 c to the seat 20 a in order to create a high pressure in the activation zone 18 a to trigger the perforating gun 16 a furthest down the well 10 .
- the sealing body 24 a floats and/or travels to the top of the well 10 and is recovered.
- a larger sized sealing body 24 b is pumped down the well 10 and travels through seat 20 c to the seat 20 b in order to create a high pressure in the activation zone 18 b to trigger the perforating gun 16 b at the next predetermined location furthest down the well.
- the larger sealing body 24 b similarly is recovered before activating the next perforating gun 16 c.
- a sealing body 24 c, larger than sealing body 24 b, is pumped down the well 10 and travels to the seat 20 c to create high pressure in the activation zone 18 c to trigger the last perforating gun 16 c. It will be appreciated that each perforated zone may be fractured using specialized chemicals in conjunction with high pressure pumping, prior to introducing the next sealing body 24 in preparation for a perforation operation.
- sealing bodies 24 a, 24 b, 24 c of varying sizes are provided to mate and form a seal with seats 20 a, 20 b, 20 c.
- the sealing body 24 that is used with the seat 20 is capable of withstanding the high pressures needed to trigger the perforating gun 16 , typically above 10,000 psi. Down-hole pressure loads may act uniformly or asymmetrically around the sealing body 24 .
- the sealing body 24 is subject to uniform pressure as it is being pumped down-hole to the seat 20 .
- the sealing body 24 experiences asymmetric loading when landed in the seat 20 during pressure-up operations for triggering the perforating gun 16 .
- FIGS. 3 a, 3 b, 3 c through FIGS. 6 a to 6 f illustrate a sealing body 24 according to embodiments of the present invention.
- the sealing body 24 comprises a shell defining a closed or sealed cavity. The cavity is closed or sealed to provide a hollow sealing body 24 with positive or neutral buoyancy.
- the sealing body 24 is comprised of a metal alloy to provide strength to withstand down-hole pressures in the well during well perforation operations.
- the sealing body 24 is sized with a shell thickness to provide strength and at the same time maintain a mass to volume ratio such that the specific gravity of the sealing body 24 is less than or equal to 1, where 1 is the specific gravity of water, in order to provide a sealing body 24 with positive or neutral buoyancy.
- the sealing body 24 as illustrated in FIGS. 3 a, 3 b and 3 c comprises a shell 52 which is generally spherical in shape and defines a closed or sealed cavity 54 .
- the cavity 54 is closed or sealed to provide a hollow sealing body 24 with positive or neutral buoyancy.
- the shell 52 is comprised of a metal alloy in some embodiments.
- the thickness of the shell 52 between an inner surface 56 and a finished outer surface 58 , is configured based on the size of the sealing body 24 and density of the metal alloy in order to provide strength and also maintain a mass to volume ratio resulting in a specific gravity of less than or equal to 1.
- the outer diameter of the shell 52 is defined in relation to the thickness of the shell 52 in accordance with the formula:
- the sealing body 24 may be used with a seat 20 comprising a ball seat 26 , as illustrated in FIG. 2 .
- the sealing body 24 mates with the ball seat 26 which has a conical face 28 which acts as a receiving surface for the sealing body 24 .
- a tight pressure seal is formed between the sealing body 24 and the conical face 28 .
- the sealing body 24 is sized with a shell thickness to provide strength to withstand downhole pressures, asymmetric pressure loads and stresses from the contact of the sealing body 24 and the seat 20 or the ball seat 26 .
- the loads and stresses on the sealing body 24 may depend on the geometry and design of the seat 20 or ball seat 26 .
- the asymmetric loading and contact stresses experienced by the sealing body 24 vary with the angle of the conical face 28 of the ball seat 26 . This angle affects the magnitude of the load on the line of contact proportional to (Cos ⁇ ) ⁇ 1 , where ⁇ represents the angle of the conical face 28 relative to the longitudinal axis 30 of the well 10 .
- contact stresses near infinity and line contact with the sealing body 24 occurs on increasing diameters or outer dimensions of the sealing body 24 .
- the sealing body 24 may have slight irregularities in the shape and the outer surface 58 of the spherical shell 52 .
- a seal will still form as the sealing body 24 starts to deform under pressure loads and the pressure imbalance acts to attempt to push the sealing body 24 through the ball seat 26 .
- the spherical shell 52 has a surface variance of not more than +/ ⁇ 0.01 inches in order to form a tight seal with the ball seat 26 .
- the sealing body 24 is comprised of a metal alloy with suitable strength and density properties, such as a high strength material having a low density.
- Suitable light metal alloys include titanium alloy or alloys of aluminum, magnesium and beryllium.
- the metal alloy comprises a Ti-6Al-4V titanium alloy.
- the Ti-6Al-4V titanium alloy has a yield strength of 128,000 psi, and 2) density of 0.168 lbs/in 3 and is composed of the following elements by percent weight; 1) aluminum 6%, 2) iron 0.25% (maximum), 3) oxygen 0.2% (maximum), 4) vanadium 4%, and 5) titanium—balance (90%).
- Other grades of titanium are available with similar characteristics, and therefore the material of the sealing body 24 is not limited to grade Ti-6Al-4V.
- the sealing body 24 further comprises an internal reinforcement structure 60 .
- the internal reinforcement structure 60 provides strength for the sealing body 24 to withstand pressures and loading during use, including asymmetric loading and localized stresses experienced by the sealing body 24 when mated with the seat 20 .
- the thickness of the shell 52 may be limited in order to ensure the specific gravity of the sealing body 24 is less than or equal to 1 and the internal reinforcement structure 60 provides additional strength to compensate for a thinner shell 52 .
- a reinforcement structure 60 may be included in a sealing body 24 in order for the sealing body 24 to withstand increased stresses related to the geometry of the seat 20 , such as for a ball seat 26 with a shallow angle of its conical face.
- the reinforcement structure comprises one or more pairs of ribs 70 , 72 .
- the ribs 70 , 72 comprise circular bands adjoining the inner surface 56 of the shell 52 of the sealing body 24 .
- the ribs 70 , 72 project from the inner surface 56 of the shell 52 towards a center of the sealing body 24 .
- the one or more pairs of ribs 70 , 72 are spaced evenly within the shell 52 and symmetrically within two half sections of the sealing body 24 .
- each rib 70 may be orthogonal to the plane of the circle of the other rib 72 in the pair of ribs.
- the ribs 70 , 72 increase the ability of the sealing body 24 to resist pressures in the well 10 , including asymmetric pressure loading from zone pressurization operations used to trigger a perforation gun 16 .
- Other configurations of reinforcement structures are contemplated.
- one pair of ribs 94 , 96 is positioned such that the planes of the circular ribs 94 , 96 intersects a centre of the sealing body 24 and two of the pairs the ribs 90 , 92 and 98 , 100 are offset an equal distance from a center of the sealing body 24 .
- the ribs 90 , 92 , 94 , 96 , 98 , 100 are spaced 0.391 inches apart, as measured between the outer surfaces of the ribs.
- the OD, shell thickness and presence and configuration of an internal reinforcement structure 60 in the sealing body 24 will vary for different metal alloys or different titanium alloys. Further, depending on the environment, pressures and loading the sealing body 24 is exposed to during use, smaller sizes of sealing bodies 24 may be provided without an internal reinforcement structure 60 . Similarly, larger sizes of sealing bodies 24 may be configured to include an internal reinforcement structure 60 to increase the strength of the sealing body 24 .
- the cavity 54 of the sealing body 24 may be substantially empty and filled with air captured within the cavity 54 as the sealing body 24 is manufactured.
- the cavity 54 of the sealing body 24 comprises a vacuum to provide a slight increase in buoyancy of the sealing body 24 .
- the cavity 54 of the sealing body 24 is filled with liquid or gas to increase the strength of the sealing body 24 .
- Light gases or petroleum distillates with specific gravities much less than 1.0, such as specific gravities around 0.01 to 0.25, may be used as a filling media to increase the strength of the sealing body 24 while maintaining a neutral or positive buoyancy.
- the cavity 54 is filled with frozen CO2 or “dry ice” prior to joining the two halves of the sealing body 24 . The dry ice sublimates to gas as it warms up and creates pressure within the cavity 54 to increase the strength of the sealing body 24 .
- Sealing bodies 24 may be manufactured in two halves and joined at an equatorial seam.
- the halves may be geometrically equivalent and can be produced from the same mold.
- Different mold types such as press molds or sand casting type molds may be used to create the halves of the sealing body 24 .
- the molds are designed to receive a molten charge of metal alloy, such as titanium alloy, for sand molds or a near-melted malleable slug for press molds.
- the same metal alloy such as Ti-6Al-4V titanium, composed of but not limited to the constituent elements noted above, may be used for both types of molds.
- the heated alloy hardens into the solid state and is removed from the sand or press mold when the temperature is suitably low.
- the halves thus produced are placed against one another at the wall face and may be held together by a fixture to assist in joining operations. Joining the two halves typically is performed by welding the seam such as with a tungsten inert gas (TIG) electric welder, which may or may not require the use of suitable filler rod material at the discretion of the operator.
- TIG tungsten inert gas
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2752864A CA2752864C (fr) | 2011-09-21 | 2011-09-21 | Corps etanche pour les operations de forage de puits |
CA2752864 | 2011-09-21 |
Publications (1)
Publication Number | Publication Date |
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US20130068461A1 true US20130068461A1 (en) | 2013-03-21 |
Family
ID=47879531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/623,376 Abandoned US20130068461A1 (en) | 2011-09-21 | 2012-09-20 | Sealing body for well perforation operations |
Country Status (2)
Country | Link |
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US (1) | US20130068461A1 (fr) |
CA (1) | CA2752864C (fr) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140174728A1 (en) * | 2010-07-12 | 2014-06-26 | Schlumberger Technology Corporation | Method and apparatus for a well employing the use of an activation ball |
WO2015026367A1 (fr) * | 2013-08-23 | 2015-02-26 | Halliburton Energy Services, Inc. | Boules de fracturation de haute résistance et de faible densité relative |
WO2016008539A1 (fr) * | 2014-07-18 | 2016-01-21 | Sfc Koenig Ag | Élément de fermeture |
WO2016140748A1 (fr) * | 2015-03-05 | 2016-09-09 | Baker Hughes Incorporated | Outil de fond de puits et son procédé de formation |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US9903178B2 (en) | 2015-11-25 | 2018-02-27 | Frederic D. Sewell | Hydraulic fracturing with strong, lightweight, low profile diverters |
US9926766B2 (en) | 2012-01-25 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Seat for a tubular treating system |
US9925589B2 (en) | 2011-08-30 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US10472927B2 (en) | 2015-12-21 | 2019-11-12 | Vanguard Completions Ltd. | Downhole drop plugs, downhole valves, frac tools, and related methods of use |
US10669797B2 (en) | 2009-12-08 | 2020-06-02 | Baker Hughes, A Ge Company, Llc | Tool configured to dissolve in a selected subsurface environment |
US10815750B2 (en) | 2015-11-25 | 2020-10-27 | Frederic D. Sewell | Hydraulic fracturing with strong, lightweight, low profile diverters |
US11167343B2 (en) | 2014-02-21 | 2021-11-09 | Terves, Llc | Galvanically-active in situ formed particles for controlled rate dissolving tools |
US11261710B2 (en) | 2020-02-25 | 2022-03-01 | Saudi Arabian Oil Company | Well perforating using electrical discharge machining |
CN114458233A (zh) * | 2022-03-25 | 2022-05-10 | 西南石油大学 | 一种具有双层结构的异形结构暂堵球 |
US11365164B2 (en) | 2014-02-21 | 2022-06-21 | Terves, Llc | Fluid activated disintegrating metal system |
US11649526B2 (en) | 2017-07-27 | 2023-05-16 | Terves, Llc | Degradable metal matrix composite |
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US4102401A (en) * | 1977-09-06 | 1978-07-25 | Exxon Production Research Company | Well treatment fluid diversion with low density ball sealers |
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US4410387A (en) * | 1980-02-27 | 1983-10-18 | Molded Dimensions Inc. | Ball sealers and method of preparation |
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US5485882A (en) * | 1994-10-27 | 1996-01-23 | Exxon Production Research Company | Low-density ball sealer for use as a diverting agent in hostile environment wells |
US20070107908A1 (en) * | 2005-11-16 | 2007-05-17 | Schlumberger Technology Corporation | Oilfield Elements Having Controlled Solubility and Methods of Use |
US8851172B1 (en) * | 2009-08-12 | 2014-10-07 | Parker-Hannifin Corporation | High strength, low density metal matrix composite ball sealer |
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2011
- 2011-09-21 CA CA2752864A patent/CA2752864C/fr active Active
-
2012
- 2012-09-20 US US13/623,376 patent/US20130068461A1/en not_active Abandoned
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CA2752864C (fr) | 2014-04-22 |
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