WO2014189697A1 - Procedes et dispositifs de retablissement de commande et de reprise de la production d'un puits de petrole offshore - Google Patents

Procedes et dispositifs de retablissement de commande et de reprise de la production d'un puits de petrole offshore Download PDF

Info

Publication number
WO2014189697A1
WO2014189697A1 PCT/US2014/037610 US2014037610W WO2014189697A1 WO 2014189697 A1 WO2014189697 A1 WO 2014189697A1 US 2014037610 W US2014037610 W US 2014037610W WO 2014189697 A1 WO2014189697 A1 WO 2014189697A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil well
flow restricting
riser
inserts
oil
Prior art date
Application number
PCT/US2014/037610
Other languages
English (en)
Inventor
Simon Tseytlin
David TSEYTLIN
Original Assignee
Tseytlin Software Consulting, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US13/897,435 external-priority patent/US8534363B1/en
Application filed by Tseytlin Software Consulting, Inc. filed Critical Tseytlin Software Consulting, Inc.
Publication of WO2014189697A1 publication Critical patent/WO2014189697A1/fr

Links

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0122—Collecting oil or the like from a submerged leakage

Definitions

  • the present invention relates to methods and devices for regaining control and resuming oil and/or gas production at an offshore oil well after an explosion or a blowout causing an uncontrolled release of fluids such as oil or water mixed with gas from the remaining part of the damaged well.
  • oil well is used herein to describe a well that produces any type of hydrocarbons including oil and gas, but which may also produce a gas condensate or water as part of the multi-phase fluid discharge that comes out of the well.
  • the present invention more specifically relates to methods for controlling the fluid discharge by gradually decreasing fluid flow using a plurality of flow restricting inserts.
  • blowout preventers configured as valves to close the oil well off in the case of uncontrolled release of fluids from the well itself.
  • a gas kick may enter into the well space. Such gas may come from the well reservoir (formation) and reach the bottom hole of the well. If this is not detected immediately, a gas bubble (gas kick) is created in the hole. Gas kick, according to Archimedes' principle begins to ascend within the annular space of the well. If not allowed to expand, such gas kick brings its initial high pressure equal to the formation pressure to the head of the well. At the same time, the pressure everywhere along the well begins to rise. If the BOP is closed, and there is no "washing" in the well, a hydrofracture of formation may occur. As a result, the drilling fluid enters the formation, and the well is filled with gas.
  • the gas also fills drill pipes all the way up to the wellhead. This may cause a gas explosion that may result in human casualties, environmental pollution and the creation of an uncontrolled fountain. This uncontrolled fountain is very difficult to suppress, because the wellhead is under enormous pressure. As offshore drilling on the continental shelves is progressing into deeper and deeper waters, the problem is many times more complicated when the explosion occurs in deep waters. Suppressing such a well and cleaning of the environment may cost billions of dollars.
  • a killing intervention consists of the insertion of a specific string of pipes inside a blowout well.
  • the killing string allows conventional killing techniques to be applied such as the circulation of heavy mud, closure by means of inflatable packers, and so forth. This method has proved to be the most rapid, but it can currently only be used in the case of well blowouts in shallow water, i.e. less than 1 ,000 meters deep.
  • its internal diameter has to be sufficiently large such as at least 10 cm or more. Inserting such a large string of pipes presents a challenge due to an enormous pressure in the well urging the killing string out of the well.
  • Additional methods of killing a well include drilling a side channel into the well and sealing the well through such channel. This method takes a long time (several months) while allowing for the uncontrolled release to continue polluting the waters with large quantity of oil. This process is also quite expensive. In addition, there is always an uncertainty present as to the exact location of the well deep down under the sea bottom. On occasion, if the side channel has missed the well, a powerful explosion may have to be used to shift the layers of the rocks and the ground near the well so as to seal it properly. In rare circumstances, underground nuclear explosions are known to be used for such purpose.
  • the object of the present invention is to provide improved methods and devices for restoring control of an oil well and arresting uncontrolled release of fluids into the environment following an explosion.
  • Another object of the present invention is to provide novel methods and devices for efficient, expedient, and less expensive processes of regaining control over an oil well after a blowout or an explosion.
  • a further object of the invention is to provide novel methods and devices for continuing production of oil from an oil well following an accidental explosion.
  • Another yet object of the present invention is to provide methods and devices for gradual flow adjustment in oil production over a broad range of operating parameters after regaining control over the well following an explosion. Such adjustments are needed to optimize oil production from the well over the remaining lifetime thereof.
  • Novel methods of the invention broadly include steps of inserting a series of flow-restricting inserts into the oil well aimed to gradually reduce the uncontrolled fluid release therefrom. Once the flow of fluids is reduced to a predetermined level, the riser may be attached to the end of the oil well so that any further fluid release may be captured at the sea surface.
  • the present invention provides for novel methods and devices to return the well to produce oil through the riser.
  • additional manipulation of the flow restricting inserts (lowering or rising at least some of them or adding/removing more inserts) provides for a convenient way to adjust flow production from the oil well for the remaining portion of the well lifespan.
  • flow restricting inserts of the invention may include a series of solid rods or hollow pipes, which may be attached or inserted one into another.
  • a first flow restricting insert (such as a solid rod) may be inserted into the opening of the oil well.
  • the material, length and size of the first insert may be selected such that its weight exceeds the force urging it out of the well. In that case, the first insert may be lowered into the well using its weight and not requiring any additional lowering force to be applied from above.
  • Additional flow restricting inserts may then be inserted into the well following placement of the first insert.
  • additional inserts may be inserted in parallel with the first insert.
  • additional flow restricting inserts may be inserted to form concentric telescopic assembly with the first insert.
  • the number, size and length of the additional inserts may be selected depending on the depth of the well and the level of fluid pressure therein. Proper selection of additional inserts may be done using a condition of inserting of each successive insert when its own weight may be sufficient to overcome the forces urging the insert out of the oil well.
  • Fluid release will be further diminished as a result of positioning additional flow restricting inserts into the oil well.
  • the riser may be attached to the oil well to preclude further fluid release therefrom.
  • the oil well may be sealed off, for example by pumping cement down the annular space between the riser and the biggest flow restricting insert.
  • the oil production from the oil well may be resumed.
  • the presence of flow restricting inserts allows for an advantageous adjustment of flow resistance through the riser over the remaining portion of the oil well lifespan.
  • FIGURE 1 is general depiction of the components involved in practicing the method of the invention.
  • FIGURES 2a through 2d illustrate various stages of practicing the first embodiment of the method of the invention
  • FIGURES 3a and 3b show various stages of practicing the second embodiment of the invention
  • FIGURES 4a and 4b show the details of attachment between adjacent flow restricting inserts according to the first embodiment of the invention
  • FIGURES 5a and 5b show the details of attachment between adjacent flow restricting inserts according to the second embodiment of the invention
  • FIGURES 5c and 5d show the details of the internal stopper at the upper end of the flow restricting inserts of the invention
  • FIGURE 6 shows the details of attaching the riser to the oil well
  • FIGURE 7 shows initial steps of the method according to the third embodiment of the invention
  • FIGURES 8a to 8e show various stages of practicing the method according to the fourth embodiment of the invention.
  • FIGURES 9a and 9b show various stages of practicing the method according to the fifth embodiment of the present invention.
  • FIG. 1 A general illustration of the elements needed to practice the invention is shown in Fig. 1 .
  • Seen in this illustration is a sea platform or a ship 6 supporting a rig 7.
  • the platform 6 has a riser 60 extending therefrom and ending above the opening of the oil well casing 2.
  • Hanging down from the rig 7 (via an optional weight balance 10) and extending through the riser 60 is a flow restricting assembly 8 seen in Fig. 1 as entering the pipe 4 of the oil well casing 2.
  • the pipe 4 is assumed to extend from the sea bottom into formation 3 so as oil and other fluids may be produced through perforations 9.
  • a BOP 1 which may or may not still be present at the oil well casing 2 after the explosion.
  • the method of the invention works in both cases: when the BOP remains on the well as well as when BOP is missing and only a small section of pipe remains in place. In this case, to prepare the pipe for the method of the invention, its top portion may be cut normal to the axis of the pipe leaving a short pipe section extending from the sea bottom.
  • the present invention further works if the well is not yet fully constructed, such as the case when the blowout occurred during drilling.
  • the term "oil well” in that case is used herein to describe a drill pipe, which may still remain in place after the explosion.
  • the lower end of the riser 60 may be positioned above and aligned with the BOP or the remaining opening of the oil well.
  • the method of the invention includes successive placement through the riser 60 of flow restricting inserts down the well pipe 4 in order to gradually reduce the flow of fluid release.
  • flow restricting inserts forming the flow restricting assembly 8 are contemplated to be within the scope of the present invention. Such inserts may be round, oval or have differently shaped cross-sections. They may be solid or hollow and sized to accept smaller inserts therein.
  • flow restricting inserts may be successively placed into the oil well one at a time - either next to each other or over each other, or as a combination of both next to each other and over each other.
  • the length of at least some of flow restricting inserts may be selected to partially or fully span the length of the pipe 4 between the sea bottom and the well bottom (or the bottom of an oil reservoir formation 3). In other embodiments, the length of the flow restricting inserts may be selected to be longer, in some cases as long as to reach the sea surface after the insert is placed in the oil well.
  • the advantage of suspending and maintaining individual inserts from the sea surface and down at least partially the depth of the well is that in this case, individual flow restricting inserts may be selectively lowered, raised, or removed altogether from the riser and the oil well, which may be used in adjusting flow resistance from the oil well to maximize oil production or for other purposes.
  • the material of the flow restricting inserts may be metal such as steel, or another material appropriate for the oil well environment.
  • the cross- sectional area and the material for each individual flow restricting insert may be selected depending on the oil well pressure, reservoir depth, sea depth and other factors.
  • the guiding principle behind selecting the material, length and cross- sectional area for each flow restricting insert is to assure that its respective weight is at least even or greater than the level of force urging the insert out of the well. This is necessary to assure that the insert can be lowered into the well based on its own force of gravity so as no additional pushing force may be needed to place the insert into the well.
  • the flow restricting inserts may have a constant or varying cross-sectional shape or size along its length.
  • the flow restricting insert may be a steel insert of constant diameter.
  • flow restricting inserts may be metal pipes, which may be sized for example to be placed one inside the other.
  • flow restricting inserts may be shaped as a single telescopic insert assembly as discussed in more detail in our cited prior patent applications.
  • flow restricting inserts may have threaded ends adapted for attachment to other inserts or other end design as described in more detail below.
  • the diameter of each insert may be from 10 mm to 800 mm.
  • the size of the final insert should match as closely as possible the inner diameter of the well pipe 4. If large diameters are required, materials other than steel may be used for large diameter inserts to reduce its weight. Alternatively, such large diameter inserts may be made of pipes with inside opening diameter selected appropriately to reduce the weight as needed.
  • the initial insert may be selected to have a small enough diameter so as to enter the opening of the well pipe 4 without much resistance. Considering that the weight of such insert may reach several hundred kilograms since the depth of a well is significant, little or no resistance should be encountered upon entrance of the first flow restricting insert into the oil well. Note that the entrance of the tip of the first insert may be aided by centering thereof using known means as for example described in our previously cited patent applications.
  • additional inserts may be placed to gradually increase the overall cross-sectional area of the inserts and decrease the space inside the oil well available for fluid release. Reduced fluid release is a result of both the reduction of available cross-sectional area as well as an increase of flow friction between the inside surface of the well and the flow restricting inserts.
  • One useful method of monitoring the progress of lowering flow restricting inserts into the well may include using a weight balance 10 positioned at the sea surface. Monitored force in that case will be a result of gravity pushing the inserts down and the combination of forces urging them up.
  • Such simple method of assessing the conditions of lowering the insert assembly down and adjusting the size and weight of the successive inserts allows eliminating any uncertainties associated with calculating various forces acting on the inserts. These uncertainties are not easily accounted for and include variations in discharge of gases and various fluids from the well.
  • the inserts may be selected to assure that the positive balance of forces as indicated by the balance 10 should always exceed at least 100 kg.
  • the safe limit of excess weight on the balance 10 may be selected to be between 100 and 500 kg, or can be assessed as a percentage of the weight of entire flow restricting assembly, such as for example 5- 10% of such weight.
  • the method of the invention may include the following steps: a. providing a riser extending from a sea surface to end above and in vertical alignment with the oil well; b. inserting a first flow restricting insert through the riser and into the oil well, the first flow restricting insert is sized to be smaller than the opening of the oil well, thereby reducing the uncontrolled fluid release therefrom; c. inserting at least one or several additional flow restricting inserts through the riser and into the oil well, thereby further reducing the uncontrolled fluid release from the oil well.
  • additional inserts may be inserted in parallel or in series with one another. They may also be inserted to be concentric to one another or a combination of these approaches.
  • Inserting additional flow restricting inserts is aimed at reducing the flow of fluid emanating from the oil well to a level suitable for attaching the riser to the oil well, for example not more than 3-5 times that of projected flow from the well under normal operating conditions.
  • the fluid release is generally under control making the next step feasible and safe; d. sealingly attaching the riser to the oil well to direct all fluid release to flow through the riser to the sea surface, which may be collected by a ship standing nearby or pumped to shore using conventional means.
  • the oil well is now under control and steps can be taken to resume oil production from the oil well through the riser and to the sea surface.
  • the oil well may be sealed such as for example by pumping cement through the riser and into the well.
  • FIGs. 2a through 2d illustrate an example of the method of the invention according to the first embodiment. Shown in Fig 2a is the beginning of the process of lowering the flow restricting assembly 8 into the well pipe 4 through the lower end 62 of the riser 60 positioned above and aligned with the BOP 1 .
  • the flow restricting assembly 8 in this case consists of the first solid insert 50 attached to a higher insert pipe 52, which in turn is attached to a higher and larger insert pipe 54 and finally the assembly 8 includes the upper insert pipe 56.
  • Each successive pipe 52, 54, and 56 may be made to accept the adjacent lower insert inside thereof.
  • the attachments 51 between successive flow restricting inserts may be made to allow hanging of the lower insert at the end of the higher insert respectively.
  • Figs. 4a and 4b shows another example of Figs. 5a and 5b which are discussed in more detail below.
  • a connection between the insert 50 and adjacent insert 52 may be made with a cross-bar 51 positioned through the side openings 53 in the insert 52 and a respective side opening 57 in the insert 50.
  • Each of the openings 53 and 55 has a respective lower edge and upper edge.
  • the lower edge of the opening 53 and the upper edge of the opening 57 may be made with rounded edges so as to retain the cross-bar 51 in place without shearing through the cross-bar 51 - and therefore supporting hanging the insert 50 off the insert 52 - see Fig. 4a.
  • a relative motion of the insert pipe 52 may be used to disengage it from the insert 50. Due to the upper edge of the opening 53 and the lower edge of the opening 57 having sharp corners, the cross-bar 51 is sheared off into three pieces 51 a, 51 b, and 51 c so that the insert 50 is disconnected from the insert 52 - see Fig. 4b.
  • Fig. 2b shows the inserts 50 and 52 at the bottom of the oil well while the insert 54 is being lowered into the well pipe 4.
  • the attachment between successive inserts may be made in a manner similar to that described above for inserts 50 and 52 such that some or all of the inserts of the flow restricting assembly 8 may be configured to be detached and left in place in the oil well.
  • Fig. 2c shows the stage of the process when all flow restricting inserts are positioned in place and the riser 60 is attached to the remnants of the BOP 1 .
  • the fluid from the oil well pipe 4 is directed through the annular space inside the riser 60 towards the sea surface where it can be collected and transported away from the oil well.
  • at least the largest flow restricting insert 56 may be configured to reach all the way from the bottom of the reservoir to the sea surface so as to allow injecting or withdrawing fluids to or from the oil well.
  • Fig. 2d shows a possible disposition of the oil well once uncontrolled fluid release is no longer a problem.
  • the oil well may be sealed with a cement plug 72 delivered through the annular space between the riser 60 and the largest flow restricting insert 56.
  • FIGs. 3a and 3b show another disposition of the oil well according to a second embodiment of the invention, in which individual flow restricting inserts are configured to be engaged and attached to each other allowing the entire assembly to collapse or extend axially like a "spy glass".
  • One such engagement design between adjacent inserts of the flow restricting assembly is shown in Figs. 5a and 5b, where each respective portion of flow restricting inserts 50 and 52 has a flange 55 and 59.
  • the flanges 55 and 59 may be configured to overlap each other such that during lowering of the flow restricting assembly 8 into the oil well pipe 4, the lower insert is supported by the adjacent higher insert (as seen in Fig. 5a).
  • the lower insert 50 may stop and disengage from the next insert 52, which can continue its descent, shown with arrows in Fig. 5b.
  • Other possible designs of the ends of respective inserts 50 and 52 may include a bayonet-type design or other fittings that may be engaged and disengaged using mechanical means and motions (such as turning and pulling) as well as hydraulically or electrically-activated coupling means.
  • One advantage of using coupling means that may be used to reengage adjacent sections of the flow restricting assembly 8 is that after regaining control over the oil well by lowering and axially collapsing the flow restricting assembly 8, oil production may be resumed by lifting the assembly 8 and axially extending flow restricting inserts as seen in Fig. 3a. Moreover, periodic lowering or raising of the flow restricting assembly 8 from the sea surface may be used to gradually adjust the flow resistance through the well-riser combination so as to optimize oil production over the remaining life of the oil well when production conditions change over time.
  • the long and tapered flow-restricting assembly 8 allows for fine tuning the resistance of flow over a broad range - from complete flow blockage (full insertion of assembly 8 down the oil well pipe 4) to complete lack of resistance (if the flow restricting assembly 8 is removed from the oil well pipe 4 and the riser 60 altogether).
  • Individual flow restricting inserts may be selected to assure that their own weight may be sufficient to both lower them into the oil well as well as retain them therein. Once the individual inserts of the flow restricting assembly are placed into the oil well, there may be nothing but their own weight which retains them individually in their positions.
  • the upper end of each flow restricting insert may be equipped with an internal stopper 70, see Fig. 5c, which may be sized to prevent the adjacent lower insert from slipping up and out therefrom should the oil well pressure exceed the weight of the insert.
  • the internal stopper in this largest flow restricting insert may be positioned at a location close to the oil well opening - in this case the internal components of the flow restricting assembly will be prevented from moving up on their own and escaping from the oil well.
  • the internal stopper may be a permanent cross-bar, an inner disk 70 with an opening 72 as seen in Fig. 5c , an indentation 74 as seen in Fig. 5d or another feature, which is configured to prevent the slippage of the internal insert past thereof.
  • straight individual flow restricting inserts may be used in combination with telescoping combination of flow restricting inserts. In that case, some or all of the telescoping inserts may be removed following restoration of control over the oil well such as oil production may proceed through the larger internal area of the remaining insert - as shown in Fig. 3b.
  • Fig. 6 shows the details of sealingly attaching the lower end 62 of the riser 60 to the remaining portion of the well pipe 4 and the BOP 1 .
  • a tapered fitting 30 may be used to cover the well pipe 4. Once the fitting 30 is placed over the pipe 4, their attachment may be permanently sealed by welding, threaded connection or other known methods.
  • Fig. 7 illustrates a third embodiment of the method of the invention in which a central portion of the flow restricting assembly 8 is made as a telescopic permanent assembly of solid rods of increasing diameters 50, 52, and 54, while the outer portion is made using one or more sliding flow restricting rods 56.
  • the central telescopic rod assembly may be lifted to adjust the flow of oil from the well or removed entirely so that oil production may proceed through the outer insert 56.
  • Figs. 8a through 8d show a fourth embodiment of the method of the invention, in which all flow restricting inserts may be concentric and continuously suspended from the sea surface. In that case, they all may be moved relative to each other and controlled from the sea surface.
  • the first flow restricting insert 50 may be initially lowered into the well (see Fig. 8a). Once it reaches the bottom of the oil well, a second flow restricting insert 52 may be lowered into the well while sliding over the first insert 50 - see Fig. 8b. At this stage, the first flow restricting insert 50 may still be suspended from the rig 7 at the sea surface.
  • a third flow restricting insert 54 may be lowered into the oil well while sliding over the insert 52 - see Fig. 8c. This process may continue until all inserts of the flow restricting assembly 8 are lowered into the oil well so that the riser may be attached to the oil well pipe 4 - see Fig. 8d. Importantly, at least some or preferably all of the flow restricting inserts are still suspended from the sea surface so as to allow one or more of them to be later (and from time to time) individually lowered, lifted or removed from the oil well as seen in Fig. 8e - this is advantageous to allow fine control over the oil flow from the well.
  • FIGs. 9a and 9b A fifth embodiment of the invention is illustrated in Figs. 9a and 9b.
  • the presence of individually controlled flow restricting inserts after regaining control over the oil well following the explosion may be advantageously used to optimize oil production in future years of the oil well.
  • One technique for doing so is generally known as a gas lift. In this case, gas is injected under pressure into the reservoir to increase the oil flow therefrom.
  • At least a first passage may be established inside the riser, for example an annular space between the riser and the flow restricting assembly 8.
  • a separate second passage may further be established inside the riser such as for example between individual flow-restricting inserts or by removing one or more of the flow restricting inserts from the riser.
  • Either the first passage or the second passage may be used for oil production.
  • the other passage may be used to inject gas into the oil well or into the oil producing passage at one or more points along its length.
  • Fig. 9a shows one example of practicing this method of the invention.
  • gas may be injected in the annular space between the riser 60 and the outer section of the flow restricting assembly 8 (gas flow shown with dashed arrows).
  • Enhanced oil production may be directed through the central opening - as shown with regular arrows.
  • Fig. 9b shows an alternative embodiment of this method of the invention in which the outer section of the flow restricting assembly may contain one or more openings along its length.
  • injecting gas into the annular space between the riser 60 and the flow restricting assembly 8 will result in forming one or more gas entry points 65 (shown as curved dashed arrows) into the oil producing passage leading to increased production of oil from the oil well.
  • any two components so associated may also be viewed as being “operably connected”, or “operably coupled”, to each other to achieve the desired functionality, and any two components capable of being so associated may also be viewed as being “operably couplable”, to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne des procédés et des dispositifs pour rétablir la commande d'un puits de pétrole offshore (2) à la suite d'une libération de fluide incontrôlée après une explosion, comprenant l'abaissement par l'intermédiaire d'un tube ascenseur (60) d'inserts successifs de restriction d'écoulement (50, 52, 54, ou 56) dans le puits de pétrole (2) afin de réduire graduellement la libération de fluide incontrôlée. Les inserts de restriction d'écoulement (50, 52, 54, ou 56) peuvent être introduits en parallèle ou en série les uns avec les autres. À la suite de la fixation du tube ascenseur (60) au puits de pétrole (2), des dispositions sont prises pour rétablir la production de pétrole provenant du puits. Les inserts de restriction d'écoulement (50, 52, 54, ou 56) peuvent en outre être utilisés pour régler la résistance à l'écoulement provenant du puits de pétrole (2) afin d'optimiser la production de pétrole. Des passages entre le tube ascenseur (60) et les inserts de restriction d'écoulement (50, 52, 54, ou 56) peuvent également être utilisés pour former une ascension par poussée de gaz, afin de maximiser la production de pétrole à partir du puits de pétrole (2).
PCT/US2014/037610 2013-05-19 2014-05-10 Procedes et dispositifs de retablissement de commande et de reprise de la production d'un puits de petrole offshore WO2014189697A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/897,435 US8534363B1 (en) 2010-07-26 2013-05-19 Methods and devices for restoring control and resuming production at an offshore oil well following an uncontrolled fluid release after an explosion
US13/897,435 2013-05-19

Publications (1)

Publication Number Publication Date
WO2014189697A1 true WO2014189697A1 (fr) 2014-11-27

Family

ID=51933974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/037610 WO2014189697A1 (fr) 2013-05-19 2014-05-10 Procedes et dispositifs de retablissement de commande et de reprise de la production d'un puits de petrole offshore

Country Status (1)

Country Link
WO (1) WO2014189697A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008134650A2 (fr) * 2007-04-27 2008-11-06 Alcoa Inc. Procédé et dispositif permettant de relier plusieurs colonnes montantes de forage entre elles et compositions de celles-ci
WO2012023074A1 (fr) * 2010-08-18 2012-02-23 Xianhua Liu Système d'étouffement et de rétablissement rapide pour puits en éruption
RU2451788C2 (ru) * 2010-06-17 2012-05-27 Григорий Наумович Гензель Способ подавления изливов из аварийных нефтяных и газовых скважин при разработке месторождений
US8205677B1 (en) * 2010-06-28 2012-06-26 Samuel Salkin System and method for controlling underwater oil-well leak

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008134650A2 (fr) * 2007-04-27 2008-11-06 Alcoa Inc. Procédé et dispositif permettant de relier plusieurs colonnes montantes de forage entre elles et compositions de celles-ci
RU2451788C2 (ru) * 2010-06-17 2012-05-27 Григорий Наумович Гензель Способ подавления изливов из аварийных нефтяных и газовых скважин при разработке месторождений
US8205677B1 (en) * 2010-06-28 2012-06-26 Samuel Salkin System and method for controlling underwater oil-well leak
WO2012023074A1 (fr) * 2010-08-18 2012-02-23 Xianhua Liu Système d'étouffement et de rétablissement rapide pour puits en éruption

Similar Documents

Publication Publication Date Title
AU2013221574B2 (en) Systems and methods for managing pressure in a wellbore
US8215405B1 (en) Method to shut down a high pressure oil/gas well that is leaking under blowout conditions
US8474536B1 (en) Method and alignment system for killing an uncontrolled oil-gas fountain at an offshore oil platform using a telescopic rod assembly
EP3137726A1 (fr) Ensemble soupape de sécurité de tête de puits
CN106285554A (zh) 用于固井阶段的井筒压力控制系统及方法
US9062517B2 (en) Well containment system
CN208236381U (zh) 油管堵塞器
EP3784873B1 (fr) Train d'outils de reconditionnement
US7451822B2 (en) Method for retrieving riser for storm evacuation
US10837267B2 (en) Well kickoff systems and methods
US8534363B1 (en) Methods and devices for restoring control and resuming production at an offshore oil well following an uncontrolled fluid release after an explosion
MX2015001954A (es) Sistema de desplazamiento y limpieza de tubo ascendente y metodos de uso.
CN108119089A (zh) 防止管柱窜动的装置及其方法
EP2532830B1 (fr) Tubage de production à grande vitesse
US8448709B1 (en) Method of killing an uncontrolled oil-gas fountain appeared after an explosion of an offshore oil platform
CA2540990C (fr) Methode et outil de placement d'une colonne perdue dans un puits de forage
US8528646B2 (en) Broken pipe blocker
WO2014189697A1 (fr) Procedes et dispositifs de retablissement de commande et de reprise de la production d'un puits de petrole offshore
EP2813669A1 (fr) Procédé de complétion et système de fond de trou
NO20162011A1 (en) Riser isolation tool for deepwater wells
WO2012106039A2 (fr) Dispositifs de désaccouplage pour trains de tiges de fond de trou
CN113638713B (zh) 一种电泵井用浮筒型阀门和电泵生产管柱
CN206830063U (zh) 一种同井注采生产管柱
US20140090852A1 (en) Temporary Cap for a Blownout Subsea Wellhead
WO2016028323A1 (fr) Appareil de vanne de sécurité de puits de pétrole et procédé associé

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14800301

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14800301

Country of ref document: EP

Kind code of ref document: A1