US20050269075A1 - High-velocity discharge equalizing system and method - Google Patents
High-velocity discharge equalizing system and method Download PDFInfo
- Publication number
- US20050269075A1 US20050269075A1 US10/860,224 US86022404A US2005269075A1 US 20050269075 A1 US20050269075 A1 US 20050269075A1 US 86022404 A US86022404 A US 86022404A US 2005269075 A1 US2005269075 A1 US 2005269075A1
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- United States
- Prior art keywords
- tubing
- fluid
- shroud
- orifices
- coupled
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 239000012530 fluid Substances 0.000 claims abstract description 91
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Abstract
According to one embodiment of the invention, a high-velocity fluid discharge device includes tubing having one or more orifices formed therein, a shroud coupled to the tubing such that, when a fluid flowing through the tubing exits the orifices, the fluid impinges on an inside surface of the shroud, and openings at both ends of the shroud. The openings have substantially the same areas.
Description
- The present invention relates generally to wellbore production enhancement operations and, more particularly, to a high-velocity discharge equalizing system and method.
- Various procedures have been utilized to increase the flow of hydrocarbons from subterranean formations penetrated by wellbores. For example, a commonly used production enhancement technique involves creating and extending fractures in the subterranean formation to provide flow channels therein through which hydrocarbons flow from the formation to the wellbore. The fractures are created by introducing a fracturing fluid into the formation at a high flow rate and high pressure in order to exert a sufficient force on the formation to create and extend fractures therein. Solid fracture proppant materials, such as sand, are commonly suspended in the fracturing fluid so that upon introducing the fracturing fluid into the formation and creating and extending fractures therein, the proppant material is carried into the fractures and deposited therein, whereby the fractures are prevented from closing due to subterranean forces when the introduction of the frac fluid ceases.
- In the line that transports the fracturing fluid from the pumps to the wellhead, there is typically a pipe tee that facilitates the use of a return line that transports fluid to a pit or other fluid containment when so desired. A valve that controls flow through this additional line may be inadvertently opened during high-flow and high-pressure situations, such as hydraulic fracturing. This may cause the energized fluid flowing through the line to surge out through the end, which may create undesirable reaction forces that cause the line to move uncontrollably. Anchors are sometimes used to minimize movement of the line.
- According to one embodiment of the invention, a high-velocity fluid discharge device includes tubing having one or more orifices formed therein, a shroud coupled to the tubing such that, when a fluid flowing through the tubing exits the orifices, the fluid impinges on an inside surface of the shroud, and openings at both ends of the shroud. The openings have substantially the same areas.
- Some embodiments of the invention provide numerous technical advantages. Some embodiments may benefit from some, none, or all of these advantages. For example, according to certain embodiments, high-flow discharge of fluid due to an inadvertent opening of a valve on the line running to a pit or fluid containment during hydraulic fracturing or other high pressure operations may be equalized so as to avoid excessive movement of the end of the line, which leads to a safer environment. In some embodiments, a shield may be utilized with such an equalizing system to prevent exiting fluids from throwing projectiles on location as well as provide additional anchorage into the ground.
- The features and advantages of the present invention will be readily apparent to those skilled in the art upon a reading of the description of the exemplary embodiments that follows.
-
FIG. 1 is a partial plan view of a production enhancement system utilizing a high-flow discharge equalizing device in accordance with one embodiment of the present invention; -
FIG. 2 is a cross-sectional view of the equalizing device ofFIG. 1 in accordance with one embodiment of the present invention; and -
FIGS. 3A and 3B are perspective views of an equalizing device in accordance with another embodiment of the present invention. -
FIG. 1 is a partial plan view of aproduction enhancement system 100 utilizing a high-flowdischarge equalizing device 200 in accordance with one embodiment of the present invention. In the illustrated embodiment,system 100 is being utilized to perform a hydraulic fracturing operation; however,system 100 may be utilized for any suitable well stimulation treatment or production enhancement operation in which fluid is circulated through a well (not illustrated). -
System 100 includes one ormore pumps 102 that deliver a fracturing fluid or other suitable fluid to awellhead 104 viadelivery line 106 having an associatedvalve 107. Because of the nature of hydraulic fracturing, the fluid is typically a high-flow, high-pressure fluid. In one embodiment, the fluid is flowing at a pressure of at least 100 psi and may be a gas, homogeneous foam, a liquid, or co-mingled fluid and gas.System 100 also includes adischarge line 108 having an associatedvalve 109 that is utilized to deliver fluid to apit 110, which may be any suitable fluid containment, when so desired. - According to the teachings of one embodiment of the invention,
system 100 includesdischarge equalizing device 200 that creates a pressure-balanced exit condition for the fluid flowing out of the open end ofdischarge line 108 intopit 110. Details ofdischarge equalizing device 200 are described in further detail below in conjunction withFIG. 2 . -
Discharge equalizing device 200 may also include ashield 208 to shield any exiting fluids flowing out ofdischarge equalizing device 200 and also to serve as a restraint system by anchoringdischarge equalizing device 200 into the ground. Although not illustrated, additional anchorage systems may be associated withdischarge line 108 foranchoring discharge line 108 into the ground. -
FIG. 2 is a cross-sectional view ofdischarge equalizing device 200 in accordance with one embodiment of the invention. In the illustrated embodiment,discharge equalizing device 200 includes atubing 202 having a plurality oforifices 203, ashroud 204, a reinforcingpad 206, andshield 208. - Tubing 202 may be any suitable conduit operable to transport a fluid therethrough. Tubing 202 may be any suitable size and shape and may be formed from any suitable material. In one embodiment,
tubing 202 has a diameter between approximately two and three inches. The fluid flowing throughtubing 202 flows in the direction ofarrow 210 and escapes fromtubing 202 throughorifices 203, as indicated byarrows 211. Orifices 203 may be any suitable size and there may be any suitable number oforifices 203. In one embodiment, there are multiple sets oforifices 203 longitudinally spaced alongtubing 202, with each set oforifices 203 including a plurality of orifices equally spaced around a circumference oftubing 202. For example,orifices 203 may be spaced around the circumference oftubing 202 at an angular spacing of 30°, 60°, 90°, or 180° depending on the number of orifices in each set. Orifices 203 may also be offset from one another. The present invention contemplates any suitable arrangement oforifices 203 formed intubing 202. - In a particular embodiment of the invention,
tubing 202 may have abuffer zone 212 associated with its downstream end in which there are no orifices.Buffer zone 212 thus facilitates the reduction of the fluidshock exiting orifices 203 by smoothing the transition from zero pressure to high pressure. In other words, as fluid starts exitingorifices 203buffer zone 212 begins to fill up with fluid so that the full pressure of the fluid does not immediately exitorifices 203, but instead builds up progressively. - Shroud 204 couples to tubing 202 in any suitable manner. Shroud 204 may be any suitable size and may be formed from any suitable material. In one embodiment,
shroud 204 is formed from ten inch casing; however, other suitable diameters may be utilized. In addition,shroud 204 may have any suitable length. In the illustrated embodiment, shroud 204 couples to tubing 202 with anend cap 214 at the downstream end oftubing 202 and anentrance cap 216 at the upstream end. In order for the fluid existing inshroud 204 to exitshroud 204,end cap 214 includes adownstream opening 215 andentrance cap 216 includes anupstream opening 217. Although both downstream opening 215 and upstream opening 217 may have any suitable open areas, downstream opening 215 and upstreamopening 217 have substantially the same open areas. This facilitates the pressure-balanced exit condition. In some embodiments,shroud 204 may not be uniform, but may have openings along its length. - Because the fluid flowing through
tubing 202 is flowing at high velocity, and becauseorifices 203 have a relatively small diameter, a great force may be exerted on aninside wall 218 ofshroud 204. This may cause deterioration of the wall ofshroud 204 depending on many factors, such as the thickness ofshroud 204, the type ofmaterial shroud 204 is formed from, the type of fluid flowing throughtubing 202, the velocity of fluid, and the size oforifices 203. Therefore, reinforcingpad 206 may be coupled to anoutside surface 220 ofshroud 204 in a location corresponding to where the fluid impinges on insidesurface 218. Reinforcingpad 206 may also couple to insidewall 218 ofshroud 204 as a sacrificial insert. Reinforcingpad 206 may be any suitable size and shape, may be formed from any suitable material, and may couple to shroud 204 in any suitable manner. In lieu of reinforcingpad 206, the wall thickness ofshroud 204 may be increased or the type of material thatshroud 204 is formed from may be changed. -
Shield 208 functions to act as a shield for any fluid exitingupstream opening 217 ofshroud 204, and may also act as an anchorage system fordischarge equalizing device 200 by imbedding a portion ofshield 208 into the ground.Shield 208 may be any suitable size and shape and may be formed from any suitable material. - In operation of one embodiment of the invention, a high flow fluid flows through
tubing 202 in the direction ofarrow 210. The fluid starts exitingorifices 203 and quickly fills upbuffer zone 212 before the full pressure of thefluid exiting orifices 203 starts impinging uponinside wall 218 ofshroud 204 that counteracts the reaction force generated by the exiting of the fluid throughorifices 203. Fluid then exits outdownstream opening 215 andupstream opening 217 before being deposited into pit 110 (FIG. 1 ). The fluid flowing out ofdownstream opening 215 and the fluid flowing out ofupstream opening 217 create substantially equal but offsetting forces. This offsetting of forces creates a pressure-balanced exit condition fordischarge equalizing device 200 and prevents the end ofdischarge line 108 from moving uncontrollably. Therefore, a safer environment may be facilitated. - In another embodiment of the invention, illustrated in
FIG. 3B ,tubing 302 is shown with equally spacedorifices 303 and noshroud 204 exists. In this embodiment, the fluid flowing throughtubing 302 exits throughorifices 303, and since these orifices have equal open areas and equally spaced, then the forces caused by the fluid flowing out oforifices 303 offset each other, thereby facilitating a pressure-balanced exit condition. - In another embodiment of the invention, which is not illustrated in the figures,
tubing 202 does not haveorifices 203 formed therein and noshroud 204 exists. In this embodiment, a tee is coupled to the end oftubing 202 so that when the fluid flowing throughtubing 202 exits the end orifice oftubing 202, it exerts a force on the inside of the tee and then flows out both ends of the main branch of the tee. If these ends of the tee have equal open areas, then the forces caused by the fluid flowing out of the ends offset each other, thereby facilitating a pressure-balanced exit condition. -
FIGS. 3A and 3B are perspective views of adischarge equalizing device 300 in accordance with another embodiment of the present invention. Discharge equalizingdevice 300 is similar in function to discharge equalizingdevice 200; however, discharge equalizingdevice 300 includes acollection tank 308 that supports both ends of atubing 302. In the illustrated embodiment, discharge equalizingdevice 300 includestubing 302 having one ormore orifices 303, ashroud 304, a pair ofshields eye 307, aremovable plug 310, andcollection tank 308. - The description of
tubing 302,orifices 303, andshroud 304 is substantially similar to the discussion oftubing 202,orifices 203, andshroud 204 as found inFIG. 2 and, hence, is not described again. -
Shields FIG. 2 ; however, in the embodiment illustrated inFIG. 3A , shield 306 a is placed adjacent anupstream opening 317 ofshroud 304 and shield 306 b is placed adjacent adownstream opening 315 ofshroud 304.Shields discharge equalizing device 300 that facilitates the balancing of the resultant forces from fluid exitingupstream opening 317 anddownstream opening 315. - The ends of
tubing 302 may be coupled tocollection tank 308 in any suitable manner.Collection tank 308, along with liftingeye 307, facilitates the portability ofdischarge equalizing device 300. As such, discharge equalizingdevice 300 may be mounted on a truck, trailer, a skid, or other suitable vehicle for easy transportation. - Although
collection tank 308 may have any suitable size and shape, in one embodiment,collection tank 308 includes a top 314 disposed underneathtubing 302 andshroud 304 to collect thefluids exiting shroud 304. In a particular embodiment, top 314 has a concave surface to assure that forces oncollection tank 308 are downward. In any event, top 314 includes a plurality of drain holes 316 that direct the fluid down intocollection tank 308. Collecting fluid incollection tank 308 also facilitates added weight to discharge equalizingdevice 300, which aids in anchoring the device. Adrain 318 may be coupled near a bottom ofcollection tank 308 to facilitate the draining of the fluid contained therein. - As illustrated in
FIG. 3B ,tubing 302 may include abuffer zone 320 that functions in a similar manner tobuffer zone 212 of tubing 202 (FIG. 2 ).Removable plug 310 functions as a clean-out fortubing 302 and may be any suitable removable plug that couples to the downstream end oftubing 302 in any suitable manner. - In operation of one embodiment of the invention illustrated in
FIGS. 3A and 3B , fluid having a high velocity flows throughtubing 302 in the direction as indicated byarrow 322. The fluid starts exitingorifices 303 and eventually fills upbuffer zone 320 before the full pressure of the fluid is exiting outorifices 303. The fluid impinges upon theinside surface 323 ofshroud 304 and exitsshroud 304 viadownstream opening 315 andupstream opening 317 before hittingshields top 314 ofcollection tank 308. The fluid then drains throughdrain holes 316 intocollection tank 308 where it may be stored or drained off usingdrain 318. As described above, thefluid exiting orifices 303 exerts a force on theinside surface 317 ofshroud 304 that offsets the reaction force generated by the fluid flowing out oforifices 303. This may create a pressure-balanced exit condition fortubing 302. - Although some embodiments of the present invention are described in detail, various changes and modifications may be suggested to one skilled in the art. The present invention intends to encompass such changes and modifications as falling within the scope of the appended claims.
Claims (26)
1. A fluid discharge device comprising:
tubing having one or more orifices formed therein;
a shroud coupled to the tubing such that, when a fluid flowing through the tubing exits the orifices, the fluid impinges on an inside surface of the shroud; and
openings at both ends of the shroud, wherein the openings have substantially the same areas.
2. The device of claim 1 further comprising a reinforcing pad coupled to a surface of the shroud in a location corresponding to where the fluid impinges on the inside surface.
3. The device of claim 1 wherein the one or more orifices comprise a plurality of orifices equally spaced around a circumference of the tubing.
4. The device of claim 3 wherein the orifices are spaced around the circumference of the tubing at an angular spacing selected from the group consisting of 30 degrees, 60 degrees, 90 degrees, and 180 degrees.
5. The device of claim 1 wherein the one or more orifices comprise a plurality of orifices spaced along a length of the tubing.
6. The device of claim 1 wherein the tubing includes a buffer zone in which there are no orifices.
7. The device of claim 1 wherein the fluid is flowing at a pressure of at least 100 psi.
8. The device of claim 1 further comprising a shield coupled to an outside surface of, and surrounding, the tubing at a location upstream from the shroud.
9. The device of claim 1 further comprising a pair of shields coupled to an outside surface of, and surrounding, the tubing, the pair of shields disposed adjacent opposite ends of the shroud.
10. The device of claim 1 further comprising a selectively removable plug coupled to a downstream end of the tubing.
11. A fluid discharge method comprising:
receiving a fluid flow in a tubing;
directing the fluid out through one or more orifices of the tubing;
impinging the fluid on an inside surface of a shroud surrounding the tubing;
directing the fluid out through at least two openings on opposite ends of the shroud; and
using the reaction force caused by the fluid flowing out one of the openings to offset a reaction force caused by the fluid flowing out of the other opening to stabilize the tubing.
12. The method of claim 11 further comprising collecting the fluid exiting the openings of the shroud.
13. The method of claim 11 further comprising causing the openings to have substantially the same area.
14. The method of claim 11 further comprising reinforcing a surface of the shroud in a location corresponding to where the fluid impinges on the inside surface.
15. The method of claim 11 wherein the fluid is flowing at a pressure of at least 100 psi.
16. The method of claim 11 further comprising anchoring the tubing into the ground.
17. A fluid discharge device comprising:
tubing having a plurality of orifices spaced around a circumference of the tubing;
a shroud coupled to the tubing such that, when a fluid flowing through the tubing exits the orifices, the fluid impinges on an inside surface of the shroud;
openings at both ends of the shroud, wherein the openings have substantially the same areas;
a pair of shields coupled to an outside surface of, and surrounding, the tubing, wherein the pair of shields are disposed adjacent opposite ends of the shroud; and
a collection tank disposed below the shroud and operable to collect the fluid exiting the opposite ends of the shroud, wherein the collection tank supports opposite ends of the tubing.
18. The device of claim 17 further comprising a reinforcing pad coupled to a surface of the shroud in a location corresponding to where the fluid impinges on the inside surface.
19. The device of claim 17 wherein the orifices are equally spaced around the circumference of the tubing.
20. The device of claim 17 wherein the orifices are spaced along a length of the tubing.
21. The device of claim 17 wherein the tubing includes a buffer zone in which there are no orifices.
22. The device of claim 17 wherein the fluid is flowing at a pressure of at least 100 psi.
23. The device of claim 17 further comprising a selectively removable plug coupled to a downstream end of the tubing.
24. The device of claim 17 wherein the collection tank includes a drain coupled near a bottom of the collection tank.
25. The device of claim 17 wherein the collection tank includes a concave top with a plurality of drain holes.
26. A fluid discharge method comprising:
receiving a fluid flow in a tubing;
directing the fluid out through at least two orifices equally spaced around a circumference of the tubing; and
using the reaction force caused by the fluid flowing out at least one of the orifices to offset the reaction force caused by the fluid flowing out an opposite orifice to stabilize the tubing.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/860,224 US20050269075A1 (en) | 2004-06-03 | 2004-06-03 | High-velocity discharge equalizing system and method |
CA002565161A CA2565161A1 (en) | 2004-06-03 | 2005-05-23 | High-velocity discharge equalizing system and method |
PCT/GB2005/002031 WO2005119000A1 (en) | 2004-06-03 | 2005-05-23 | High-velocity discharge equalizing system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/860,224 US20050269075A1 (en) | 2004-06-03 | 2004-06-03 | High-velocity discharge equalizing system and method |
Publications (1)
Publication Number | Publication Date |
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US20050269075A1 true US20050269075A1 (en) | 2005-12-08 |
Family
ID=34968199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/860,224 Abandoned US20050269075A1 (en) | 2004-06-03 | 2004-06-03 | High-velocity discharge equalizing system and method |
Country Status (3)
Country | Link |
---|---|
US (1) | US20050269075A1 (en) |
CA (1) | CA2565161A1 (en) |
WO (1) | WO2005119000A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070261851A1 (en) * | 2006-05-09 | 2007-11-15 | Halliburton Energy Services, Inc. | Window casing |
US20070261852A1 (en) * | 2006-05-09 | 2007-11-15 | Surjaatmadja Jim B | Perforating and fracturing |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US443115A (en) * | 1890-12-23 | Harrow | ||
US1756582A (en) * | 1928-12-15 | 1930-04-29 | John W Butler | Underground fire extinguisher |
US3601320A (en) * | 1968-06-26 | 1971-08-24 | Neil M Du Plessis | Apparatus for breaking up a directional fluid stream |
US4125171A (en) * | 1973-08-23 | 1978-11-14 | Morris Alberto J | Exhaust gas silencer |
US4474477A (en) * | 1983-06-24 | 1984-10-02 | Barrett, Haentjens & Co. | Mixing apparatus |
US4493344A (en) * | 1983-04-13 | 1985-01-15 | Cherne Industries, Inc. | Mechanical plug device |
US4531677A (en) * | 1982-04-16 | 1985-07-30 | Matsushita Electric Industrial Co., Ltd. | Atomizer |
US4912782A (en) * | 1987-05-26 | 1990-04-03 | Kallista, Inc. | Fluid spout providing lamelliform outflow |
US6158510A (en) * | 1997-11-18 | 2000-12-12 | Exxonmobil Upstream Research Company | Steam distribution and production of hydrocarbons in a horizontal well |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353434A (en) * | 1981-03-30 | 1982-10-12 | Norris Thomas R | Fluid blow-off muffler |
US5860452A (en) * | 1998-04-02 | 1999-01-19 | Ellis; Harrell P. | Pulsation dampener |
-
2004
- 2004-06-03 US US10/860,224 patent/US20050269075A1/en not_active Abandoned
-
2005
- 2005-05-23 WO PCT/GB2005/002031 patent/WO2005119000A1/en active Application Filing
- 2005-05-23 CA CA002565161A patent/CA2565161A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US443115A (en) * | 1890-12-23 | Harrow | ||
US1756582A (en) * | 1928-12-15 | 1930-04-29 | John W Butler | Underground fire extinguisher |
US3601320A (en) * | 1968-06-26 | 1971-08-24 | Neil M Du Plessis | Apparatus for breaking up a directional fluid stream |
US4125171A (en) * | 1973-08-23 | 1978-11-14 | Morris Alberto J | Exhaust gas silencer |
US4531677A (en) * | 1982-04-16 | 1985-07-30 | Matsushita Electric Industrial Co., Ltd. | Atomizer |
US4493344A (en) * | 1983-04-13 | 1985-01-15 | Cherne Industries, Inc. | Mechanical plug device |
US4474477A (en) * | 1983-06-24 | 1984-10-02 | Barrett, Haentjens & Co. | Mixing apparatus |
US4912782A (en) * | 1987-05-26 | 1990-04-03 | Kallista, Inc. | Fluid spout providing lamelliform outflow |
US6158510A (en) * | 1997-11-18 | 2000-12-12 | Exxonmobil Upstream Research Company | Steam distribution and production of hydrocarbons in a horizontal well |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070261851A1 (en) * | 2006-05-09 | 2007-11-15 | Halliburton Energy Services, Inc. | Window casing |
US20070261852A1 (en) * | 2006-05-09 | 2007-11-15 | Surjaatmadja Jim B | Perforating and fracturing |
US7337844B2 (en) | 2006-05-09 | 2008-03-04 | Halliburton Energy Services, Inc. | Perforating and fracturing |
Also Published As
Publication number | Publication date |
---|---|
WO2005119000A1 (en) | 2005-12-15 |
CA2565161A1 (en) | 2005-12-15 |
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Owner name: HALLIBURTON ENERGY SERVICES, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SURJAATMADJA, JIM B.;KENDRICK, WILLIAM D.;BLANCO, IVAN L.;REEL/FRAME:015436/0524;SIGNING DATES FROM 20040526 TO 20040602 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |