DE69731591T2 - tool connector - Google Patents

Description

The The present invention relates to a tool connection, and further relates to a method for connecting a first tool section with a second tool section. In particular, the present invention on devices and methods for the connection and release of pipe sections and other tool sections for deep hole application in oil and gas fields. The present invention further particularly relates on devices and methods for the connection and release of pipe sections and other tool sections, which include Rotate the tool for the manufacture and release of the Do not require connection. The invention is particularly suitable for the Joining tool sections in the form of perforating guns.

For the purpose In the present description, the term "tool section" refers to any one tubular Part or any tubular Section for the Tieflochanwendung and includes, for example, standard pipe connection sections, Borehole packers, and other downhole tools, in particular perforating guns, for the Application in oil and gas wells but is not limited to these.

In In the past, conventional grub screws and bell connections applied thereto, tool sections for various Tieflochanwendungen connect to each other, wherein the same Perforierungsgunabschnitte lock in. For example, a second tool section is picked up and over the first tool section positioned after a tool section positioned and within a slide unit on the bottom of a Well has been found (usually with the help of a Grub screw connection at the upper end thereof). If the second Tool section (usually with the help of a threadlock connection at the lower end of it) in the blocks of the rig, the same must be careful axially on the first tool section be aligned so that the same on the pin connection of the first tool section can be placed. The second tool section is then rotated to make the threaded connection.

It can however during the use of threaded pin and bell connections several Problems occur. For example, the procedure of cautious Aligning and threading a stretched tool section and with the next one especially time consuming. Experienced oil field workers need about one to two Minutes for connecting or disconnecting typical tool sections with Help with threaded pin and bell connections, which are often about thirty feet long. The stage of aligning the second tool section may be particularly be very difficult at high wind speeds, as these a swing of the thirty Walk long Section in the blocks can cause. If the second tool section is not aligned correctly, the threads of the pin and bell connection will tend to to break up and fix each other.

When an alternative to conventional Grub screw and bell connections will make some tool connections with the help of certain types of rotating movements in addition to the screw connection activated or released. It is, however, today more frequently the case that tool sections are used with bobbin tubes. Coil tubes can hundreds or thousands of feet long be so difficult or totally impractical is a rotation of this coil tube for actuating a locking or a release connection to try. It would be therefore desirable a locking and release connection for the To be able to offer application with tool sections which does not rotate must become.

EP 0647765 describes a detachable gun hanger for use with a coil tube.

In some applications it must be possible to pass tool sections and connecting devices through reduced diameter tubes or other downhole constrictions to reach the location within the casing where the perforation is to be made. In these applications, the axial cross-sectional profile of the tool chain (ie, a perforation bead when the tool sections are perforating guns) is particularly important. For example it is possible that with the tool unit during perforation of a five-inch (12.7 cm) casing a small hole to be overcome must, for example, a tube with a diameter of two and a half inches (6.4 cm) or 1 to _^11/16 inches ( 4.3 cm) or another diameter. These tube passing tooling units may be characterized as low profile devices due to the restricted passageways through which they must be passed in order to achieve the desired downhole perforation site. These low profile tooling tools do not offer the luxury of a design arrangement present in tooling units whose maximum outside diameter is approximately equal to that of the tubing which is to be perforated. These small profile tooling units for tubing present their own problems which do not occur with larger profile tools.

Further Problems occur when downhole tool sections by one Wellhead passed through should be. A typical borehole is always with a drill hole ("BOP") in the borehole chamber equipped, with the same possible Include pressure within the same wellbore and one To prevent outbreaks of the borehole. Such a blowout is also for security reasons applied when an existing borehole is newly completed should. An outbreak can represent a particularly dangerous situation if the oil or gas explodes and burns. In addition, such is one uncontrolled leakage an extremely large waste more valuable Resources and harms the environment, even if the oil or gas not on fire. In some countries, such as in the United States, is subject to such uncontrolled outbreak due to associated environmental pollution Considerable legal fines for the sponsoring company as well costs for Cleanup measures. Wellhead valves are well known to those skilled in the art, and are described, for example, in US application 4,416,441 entitled "Blowout Preventer "by Denzal W. Van Winkle of November 22, 1983, and U.S. Patent 4,943,031 titled "Blowout Preventer "by Denzal W. Van Winkle of 24 July 1990.

US application 4,436,157 describes a detachable Connection for the application within a well slide shaft.

To The current state of the art will usually be two or more Well slide used in a well in the well chamber. For example, the rams of a lower blowout preventer applied as slide rams comprising serrated metal teeth, for the Gripping and holding a portion of a downhole pipe assembly or another tool. The slider rams are also called one Type of slider unit for holding a portion of a downhole pipe assembly or a Tool section useful, to which many more sections are connected and from the lower one End of the same can be suspended. The rams of a second Bore gate over the first ones are used as sealing rams and are fitted with rubber seals equipped, which for the squeezing adapted against the Tieflochrohranordnung or other tools are and a pressure-tight seal around the pipe assembly or the tool create around.

additional Bore slides within the shaft are often used. So can for example, the rams of a third blowout pusher over the sealing BOP be equipped with cutting blades, for cutting through a piece of pipe, whose thread is fixed to the subsequent pipe section have and not resolved normally can be. The rams of a fourth blowout pusher above the remainder may act as one Blind seal can be applied, so that the well chamber completely sealed can be. In this way is a promotional wellbore in the wellbore usually with at least two downhole valves for controlling equipped the borehole.

Unfortunately is the application of conventional Grub screw and bell connections through a lubricant unit above a Well slide chamber particularly time-consuming. She demands, for example even with very experienced wellhead workers about five minutes, within which the tool sections pass through a lubricant unit over one Well slide shaft are interconnected. It exists therefore, for a long time a need for a device and a method which a much faster connection and disconnection of tool sections through a lubricant unit and well slide wells enable would. The saving of labor costs for experienced employees and the saved production time, which for the Connecting several tool sections are required promotes since a long time research for faster devices and methods. Nevertheless there is still a great need for further improvements and Methods.

Deep hole connections and connection methods are also used in US 5,518,072 . US 5,305,465 . US 4,391,326 . US 5,111,884 and US 4,449,736 described.

Of all deep hole tool sections used in a well, perforating gun sections present some of the most serious difficulties and challenges. Conventional perforating gun perforations for well casings typically include carriers designed to support multiple separate perforating charges within a desired longitudinal array, and sometimes also a desired radial orientation. Examples of various conventional perforating gun sections are illustrated in U.S. Patent 5,095,999 to Daniel C. Markel on Mar. 17, 1992. In particular, the Markel patent illustrates a conventionally enclosed perforating gun section having a series of perforating charges mounted on a carrier pusher and enclosed in a carrier tube. (See US Application 5,095,999, column 5, lines 20-39 and 5 ).

It Within this industry, it is well known that perforating gun sections are perforated explosive charges use which for shaping and aligning the blast along the alignment axis with very great precision were designed. Normally, a perforation-shaped charge Form and align a casing material in this way a steady generate round beam, which is exactly on the alignment axis and aligned along it. The aligned beam penetrates both the casing lining the borehole like the surrounding geological formation. The detonation of the perforation charges should increase the production of the well, hoping that that in a substantial increase of production pressure will result in the well chamber.

Usually is maximizing the perforations in the form of a one-shot downhole process desirable. For example, it is sometimes desirable to have hundreds, or even thousands of linear feet (1 Foot = 0.305 m) of a deep hole casing to drill hole production to improve. The length however, a typical perforating gun section is about thirty feet (9.1 m). Naturally Is it possible, an increased perforation of the deep hole piping by repeating the method of lowering a perforating gun section for the Perforating the deep hole piping and the subsequent extraction of the ignited Perforierungsgunabschnitts to achieve until the desired longitudinal section the deep hole casing is perforated. The one for repeating each one this time-consuming and low-cost method means however, that one mostly for the perforation of the desired Section of the borehole using a single downhole method decides. If therefore desirable appears, such lengths to perforate the deep hole piping, as they are often perforated need to two or more Perforierungsgunabschnitte interconnected become. The assembled chain of perforating gun sections is then lowered into the wellbore to the well with a single shot too perforate.

The Connecting Perforierungsgunabschnitten with conventional Grub screw and Bell connections as described above presents more special ones Problems and risks. For example, manual rotation the second Perforierungsgunabschnitts with a hand key far more time consuming than the same procedure with the help of electrical Pliers. With a hand key can the oil field worker However, feel the process of screwing in the connection and feel better, whether the threads are properly aligned with each other for rubbing to prevent. Although an application of electric pliers for rotating a Perforierungsgunabschnitts and mounting a threaded connection faster, if that at all works, it is due to the rotation speed and the Fact that the oilfield worker do not feel the connection procedure and necessary changes the thread alignment can not perform on time much more likely that the threads of the connecting pieces rub off.

A reamed threaded connection presented at Perforierungsabschnitten very special due to the explosives used in the sections Problems and dangers. For example, if the threads rub up and within a threaded pin and bell connection between two Determine perforation gun sections, the transfer becomes the detonation signal between these two sections may not be reliable. It is therefore usually desirable or necessary to separate the ragged compound and the Connection, and possibly also replace both perforating gun sections. The severance However, the worn thread of a joint is sometimes heavy or quite impossible. In addition, the cutting or shearing of worn perforating gun sections, which contain explosive explosives, of course, undesirable for safety reasons. A such ripped thread connection between Perforierungsgunabschnitten presents therefore a serious problem. In the past there was one the only solutions this problem of a seriously worn threaded connection from the lifting of the two worn Perforierungsgunabschnitte and separating the lower joint from the rest of the perforating gunkette, then safely remove the two misconnected sections and could be handled. However, this is with regard to the extra costly perforating gun sections are very wasteful and time consuming.

Out these reasons can align, detect, and manually create a each threaded connection between the perforating gun sections take several minutes, and a ruffled connection can severely hinder the process of perforating a wellbore. It There is therefore a long-felt need for a better, more reliable, and faster connection for Perforating gun.

In addition, working with perforating gun sections through a shaft of downhole valves presents several other problems and challenges. This is a fact, although the pressure in the wellbore initially significant Lich balanced, so that the wellbore chamber can be opened for the insertion of a tool section. For example, it is hoped that well production can be increased after applying the perforating gun section for perforating the downhole well and the downhole pressure in the wellbore. This, in turn, presents the problem of how the fired perforating gun section can be removed through the downhole slide. This method is particularly problematic because a fired perforating gun section itself has been thoroughly perforated due to the ignition of the perforation-shaped charges. For example, the sealing rams of the sealing downhole slide will be difficult to fully seal the bent, warped, and perforated metal of the perforating gun section. In addition, the open holes created in the fired perforating gun section represent numerous passages for entry of the pressurized fluid present in the wellbore beneath the wellheads into the ignited perforating gun section. Thus, the ignited perforating gun portion presents an undesirable passage through the wellbore chute as well as a leak or leakage of the pressurized production.

A State-of-the-art method addresses the problem like a fired perforating gun section while balancing the pressure within the wellbore can be. Such a balancing of pressure usually becomes by pumping in a drilling mud achieved with a suitable density in the well chamber, whereby the pressure below and above the borehole chamber is balanced. This balancing method However, it is sometimes referred to as a "killing" of the well, as it is the Restricting production and create other pressure management and technical difficulties can. There has long been a need for a device and method for removing the ignited Perforating gun section through the shaft of borehole slides in the drilling chamber without the well production even temporarily limited must become.

Moreover it is often desirable to improve the well production of a well which has a having positive pressure in the wellbore chamber. Even in such a In the case, the perforation of the deep hole casing is still desirable. Naturally can work through a blowout pusher shaft with an intact one Perforierungsgunabschnitt before detonation of the same also by applying a lubricant unit above the blowout pusher well carried out become. The perforating gun sections can be used together with the lubricant unit be mounted by means of techniques which the skilled person well known in this field. The application of a lubricant unit over the Bore gate valve limits the length the Perforierungsgunabschnitte, which for the practical length of Lubricant unit can be applied, but further. A typical lubricant unit for Such applications may include perforating gun sections of up to 35 Foot (11 Meters).

Also for this reason there has long been a need for devices and methods which is capable are two tools, such as perforating guns, for firing during a single one Deep hole method quickly connect with each other and so the time required and the expenses for to reduce the perforation of a borehole. It exists since a long time need for equipment and methods for the removal and the faster separation of ignited tool sections from a borehole. There is still a particular need for devices and methods for the Connecting and disconnecting tool sections through a blowout pusher well and simultaneously maintaining the pressure under the well slide shaft.

in the In general, the present invention provides devices and methods for bonding of tool sections for Deep hole applications. An embodiment The present invention provides a tool connection which includes a stinger and a stinger container. The singer is for the Piercing in the Stingerbehälter adapted. A loaded Eingreifteil is present, which between an insertion position before piercing the Stinger into the Stingerbehälter and a locked position after piercing the stinger in the Stingerbehälter can be moved for that Lock the stinger with the stinger container. A solution part holds the loaded engagement part in the insertion position. When the stinger is stabbed into the stinger tank and a Locking force imposed on the stinger and the Stingerbehälter that will solve that part solution the loaded Eingreifteil, which is now locked on the Position moves and the stinger and the Stingerbehälter together locked. Neither the Stinger nor the Stingerbehälter need to be rotated become the connection between the perforating gun sections manufacture.

Another embodiment of the present invention provides a releasable tool connection. The tool joint further includes a releasable stop member for stopping the engagement member in the locked position. When the stop member is released, the engagement member moves to the released position so that the stinger and the stinger container can be separated from each other. In this Wei The tool sections can also be loosened without rotating.

A another embodiment The present invention provides a tool connection with a certain application task related to perforating gun sections. In this embodiment is the tool connection with an internal explosive transfer system equipped, for the transferring the detonation signal from a perforating gun through the perforating gun connection to the next Perforating. The internal explosive transmission system protects the Additional charges and offers additional Safety.

A another embodiment The present invention provides a tool connection which the following includes: a stinger; a Stingerbehälter; in which the stinger for the piercing into the Stingerbehälter adapted; a loaded Eingreifteil, which between a insertion before piercing the Stinger into the Stingerbehälter and a locked position after piercing the stinger in the Stingerbehälter can be moved for locking the stinger with the stinger container; and a solution part, which holds the loaded engagement member in the insertion position, characterized that the solution part the loaded engagement part releases, when the stinger is stabbed into the stinger tank and a Locking force imposed on the stinger and the Stingerbehälter is going to be the stinger and the Stingerbehälter in this way on the move locked position and lock together.

A another embodiment The present invention includes a tool in the form of a Perforating.

Preferably is a solvable Stop part available, for stopping the engagement member in the locked position, wherein the engaging member moves to a released position when the Stop part is loosened, so that the stinger and the Stingerbehälter separated from each other can be. The detachable stop part can for the release be adapted with the help of a clamp. The loaded engagement part can at the Stingerbehälter be attached. The detachable stop part can also on the Stingerbehälter be attached.

The Intervention can be done with the help of stored potential energy a spring loaded by the solution part in a compressed state is held.

The Connection can be equipped with an internal explosive transmission system where the tooling connection is a particular application for joining of perforating gun sections.

• (i) einem Meßabschnitt; und
• (ii) einem Stingerverbindungsabschnitt, welcher mit dem Meßabschnitt verbunden ist, wobei der Stingerverbindungsabschnitt für das Erstellen der Stingeruntereinheit mit einem ersten Werkzeug- oder Perforierungsgunabschnitt adaptiert ist; und wobei der Stingerbehälter eine Verriegelungsuntereinheit umfasst, mit:
• (i) einem Körperabschnitt, wobei derselbe Körperabschnitt für das Empfangen des Meßabschnitts der Stingeruntereinheit adaptiert ist;
• (ii) einem Verriegelungsverbindungsabschnitt, welcher mit dem Körperabschnitt verbunden ist, wobei der Verriegelungsverbindungsabschnitt für das Erstellen der Verriegelungsuntereinheit mit einem zweiten Werkzeug- oder Perforierungsgunabschnitt adaptiert ist;
• (iii) einem federgespannten Gehäuse, welches gleitbar auf dem Körperabschnitt befestigt ist, wobei das federgespannte Gehäuse für das Verdrängen aus einer laufenden Position in eine verriegelte Position adaptiert ist, und wobei das federgespannte Gehäuse mindestens einen Haltestift umfasst, für das Halten des federgespannten Gehäuses in der laufenden Position auf dem Körperabschnitt, bis der Haltestift bricht; und
• (iv) Spannfinger, welche mit dem Körperabschnitt im wesentlichen innerhalb des federgespannten Gehäuses verbunden sind, wobei das federgespannte Gehäuse eine Ablenkstruktur umfasst, welche für das Ablenken der Spannfinger in einen Eingriff mit dem Meßabschnitt der Stingereinheit adaptiert ist,

wobei das federgespannte Gehäuse der Verriegelungsuntereinheit in der laufenden Position in einer laufenden Position für das Bewegen derselben auf dem Meßabschnitt der Stingeruntereinheit gehalten wird; und wobei eine Feststellkraft den Haltestift bricht, wenn dieselbe Feststellkraft auf die Verriegelungsuntereinheit und gegen die Stingeruntereinheit auferlegt wird, um das federgespannte Gehäuse zu lösen, welches auf den Körperabschnitt in Richtung der verriegelten Position verdrängt wird, sodass die Ablenkstruktur des federgeladenen Gehäuses die Spannfinger in einen Eingriff mit dem Meßabschnitt der Stingereinheit ablenkt und die Spannfinger in einem verriegelten Eingriff mit dem Meßabschnitt hält.In another embodiment, the stinger comprises a stinger subunit with:

• (i) a measuring section; and
• (ii) a stinger connecting portion connected to the measuring portion, the stinger connecting portion for creating the stinger subunit being adapted with a first tool or perforating gun portion; and wherein the stinger container comprises a latch subassembly, comprising:
• (i) a body portion, wherein the same body portion is adapted for receiving the measuring portion of the stinger subunit;
• (ii) a lock connection portion connected to the body portion, the lock connection portion adapted to make the lock subunit having a second tool or perforation gun portion;
• (iii) a spring loaded housing slidably mounted on the body portion, the spring loaded housing being adapted for displacement from a running position to a locked position, and wherein the spring loaded housing includes at least one retention pin for holding the spring loaded housing in the current position on the body section until the retaining pin breaks; and
• (iv) tensioning fingers connected to the body portion substantially within the spring-loaded housing, the spring-loaded housing comprising a deflecting structure adapted to deflect the tensioning fingers into engagement with the measuring portion of the stinger unit,

wherein the spring-loaded housing of the latch subassembly in the current position is held in a running position for moving it on the measuring section of the stinger subassembly; and wherein a locking force breaks the retaining pin when the same locking force is imposed on the locking subunit and against the stinger subassembly to release the spring loaded housing displaced toward the body portion toward the locked position, such that the deflection structure of the spring loaded housing fits the clamping fingers in one Deflects engagement with the measuring section of the stinger unit and holds the clamping fingers in a locked engagement with the measuring section.

In one embodiment, the connection further comprises: spring loaded stop / release pads secured to the body portion of the latch subassembly such that the same pads stop the spring loaded housing in the latched position, and wherein the spring loaded stop / release pads for engagement and engagement mendrücken are adapted by means of a clamp, wherein the spring-loaded housing on the body portion is displaced to a disengaged position when the spring-loaded stop / release pads are pinched and compressed, which in turn holds the spring-loaded stop / release pad in the compressed state, and the deflection structure of the spring-loaded housing moves to release the clamping fingers from their engagement in the measuring section of the stinger subunit.

at an embodiment the stinger subunit further comprises an in-stinger explosive transmission system, and the latch subassembly may further include an interlocking explosive transmission system include, wherein the tool connection a particular application with respect to perforating gun sections.

• (a) eine interne Verriegelungskammer, welche sich durch den Verriegelungsverbindungsabschnitt und durch den Körperabschnitt hindurch erstreckt;
• (b) eine die Verriegelung empfangene Zusatzladung, welche in der internen Verriegelungskammer neben dem Verrieglungsverbindungsabschnitt positioniert ist;
• (c) eine Verriegelungszündschnur, welche im wesentlichen entlang der gesamten Länge der verriegelungsinternen Kammer positioniert ist;
• (d) eine die Verriegelung sendende Zusatzladung, welche in der internen Verriegelungskammer neben dem Körperabschnitt positioniert ist; und
• (e) eine verriegelungsförmige Ladung, welche in der Verriegelungslösekammer distal zu der die Verriegelung sendenden Zusatzladung positioniert ist;

wobei das verriegelungsinterne Sprengstoffübertragungssystem für das Weiterleiten und Übertragen der Detonation der Perforierungsladungen von dem ersten Werkzeug oder Perforierungsgunabschnitt durch die Verriegelungsuntereinheit und für das Zünden der verriegelungsförmigen Ladung in Richtung des Meßabschnitts der Stingeruntereinheit adaptiert ist.In one embodiment, the interlock unit internal explosive transmission system includes the following:

• (a) an internal lock chamber extending through the lock connection portion and through the body portion;
• (b) a booster receiving auxiliary charge positioned in the internal lock chamber adjacent to the lock connection portion;
• (c) a locking fuse positioned substantially along the entire length of the lock internal chamber;
• (d) a latch transmitting auxiliary charge positioned in the internal latching chamber adjacent the body portion; and
• (e) a latch-shaped charge positioned in the latch release chamber distal to the latch-transmitting auxiliary charge;

wherein the interlocking explosive transmission system is adapted for forwarding and transmitting the detonation charge from the first tool or perforating gun section through the interlocking subunit and for igniting the interlocking charge towards the measuring section of the stinger subassembly.

• (a) eine stingerinterne Kammer, welche sich aus der Nähe eines spitzen Endes des Meßabschnitts in Richtung des Stingerverbindungsabschnitts erstreckt;
• (b) eine Stingerzusatzladung, welche in der stingerinternen Kammer neben dem spitzen Ende des Meßabschnitts positioniert ist;
• (c) eine Stingerzündschnur, welche im wesentlichen entlang der gesamten Länge der stingerinternen Kammer positioniert ist;
• (d) einen Stingerzündstift, welcher in der stingerinternen Kammer positioniert ist; und
• (e) einen Stingerinitiator;

wobei das stingerinterne Sprengstoffübertragungssystem für das Detonieren durch das verriegelungsinterne Sprengstoffübertragungssystem und das Weiterleiten und Übertragen der Detonation der Perforierungsladungen von der Verriegelungsuntereinheit durch die Stingeruntereinheit und an einen zweiten Werkzeug- oder Perforierungsgunabschnitt adaptiert ist, welcher den Stingerverbindungsabschnitt der Stingeruntereinheit umfasst.In one embodiment, the stinger-internal explosive transmission system comprises:

• (A) an in-stinger inner chamber, which extends from the vicinity of a tip end of the measuring portion in the direction of the Stingerverbindungsabschnitts;
• (b) a stinger additive charge positioned in the stinger internal chamber adjacent the tip end of the measuring section;
• (c) a stinger ignition cord positioned substantially along the entire length of the stinger internal chamber;
• (d) a Stingerzündstift, which is positioned in the stinger-internal chamber; and
• (e) a stinger initiator;

wherein the in-stint explosive transfer system is adapted for detonation by the inter-locking explosive transfer system and forwarding and transferring detonation charge from the interlocking subunit through the stinger subunit and to a second tooling or perforating gun section comprising the stinger-connecting section of the stinger subunit.

Of the Stinger connection portion of the stinger subunit may consist of a Pin connection section exist. The lock connection portion the latch subassembly may be a bell connection section consist.

The Stinger subunit may further comprise: a slide settling section, which with the measuring section is connected, wherein the Schieberabsetzabschnitt for a Engaging in and holding adapted by a slide unit is.

• (i) einem Meßabschnitt; und
• (ii) einer Vorrichtung für das Verbinden des Meßabschnitts mit einem ersten Werkzeug- oder Perforierungsgunabschnitt; und wobei der Stingerbehälter das Folgende umfasst: eine Verriegelungsuntereinheit mit:
• (i) einem Körperabschnitt, wobei derselbe Körperabschnitt für das Empfangen des Meßabschnitts der Stingeruntereinheit adaptiert ist;
• (ii) einer Vorrichtung für das Verbinden des Körperabschnitts mit einem zweiten Werkzeugperforierungsgunabschnitt;
• (iii) einem federgespannten Gehäuse, welches gleitbar auf dem Körperabschnitt befestigt ist, wobei das federgespannte Gehäuse für das Verdrängen aus einer laufenden Position in eine verriegelte Position adaptiert ist;
• (iv) einer Vorrichtung für das Halten des federgespannten Gehäuses in der laufenden Position an dem Körperabschnitt; und
• (v) einer Vorrichtung für das Verriegeln des Körperabschnitts mit dem Meßabschnitt der Stingeruntereinheit, wenn das federgespannte Gehäuse in die verriegelte Position bewegt wird;

wobei eine Feststellkraft die Vorrichtung für das Halten des federgespannten Gehäuses bricht, wenn dieselbe Feststellkraft auf die Verriegelungsuntereinheit und gegen die Stingeruntereinheit auferlegt wird, sodass das federgespannte Gehäuse auf dem Körperabschnitt in die verriegelte Position verdrängt wird.In another embodiment, the stinger comprises a stinger subunit with:

• (i) a measuring section; and
• (ii) a device for connecting the measuring section to a first tool or perforating gun section; and wherein the stinger container comprises: a latch subunit having:
• (i) a body portion, wherein the same body portion is adapted for receiving the measuring portion of the stinger subunit;
• (ii) a device for connecting the body portion to a second tool perforating gun portion;
• (iii) a spring loaded housing slidably mounted on the body portion, the spring loaded housing being adapted for displacement from a running position to a locked position;
• (iv) a device for holding the spring-loaded housing in the current position on the body portion; and
• (v) a device for locking the body portion to the measuring portion of the stinger subassembly when the spring loaded housing is moved to the locked position;

wherein a locking force breaks the device for holding the spring-loaded housing when the same locking force is imposed on the locking sub-unit and against the stinger sub-unit, so that the spring-loaded housing is displaced on the body portion in the locked position.

at this embodiment For example, the tool may further include the following: a spring-loaded one Stop / release device which on the body section the latch subunit is attached, and a stop / release device for the Stop the spring-loaded housing in the locked position, after the locking force the holding device for the spring-loaded housing has broken, wherein the spring-loaded stop / release device for the intervention and squeezing through a terminal is adapted, wherein the spring-loaded housing on the body section displaced from the locked position to a released position, when the spring-loaded stop / release device pinched and squeezed is, whereby the spring-loaded stop / release device in a compressed state is held, and wherein the device for locking the body portion of the measuring section from their engagement in the measuring section solved the stinger subunit becomes.

A another embodiment The present invention provides a method for connecting a first one Tool section with a second tool section, wherein the same Method comprising the steps of: (a) connecting a singler with the first tool section; (b) connecting a sting container to the second tool section; (c) the piercing of the stinger in a bond with the Stingerbehälter; characterized in that the method further comprises the following stages includes: (d) imposing a locking pressure on the stinger and the Stingerbehälter for the Solve one loaded engagement part from a current position to a locked Position, for locking the stinger with the stinger tank.

at an embodiment the first tool section consists of a first perforating gun section, and the second tool portion of a second perforating gun section.

One solvable Stop part can be pinched to the loaded Eingreifteil from the locked position, so that the stinger and the Stingerbehälter can be separated from each other.

at an embodiment can the step of clamping the releasable stopper for releasing the loaded engagement part by means of a hand clamp.

at another embodiment may be the step of clamping the releasable stop member for detachment of the charged engagement part by means of the operating rams of a blowout preventer.

We and now to the accompanying drawings, wherein:

1 Figure 3 is an axial cross-sectional view of a stinger subassembly for one embodiment of a latch and release tool connection of the present invention;

2 a detailed cross-sectional view of a portion of the internal stricture transmission system of in 1 represents a stinger subunit;

3 a detailed cross-sectional view of an alternative embodiment of the measuring section of in 1 in which the tip is replaceable;

4 Figure 3 is an axial cross-sectional view of a latch and release subassembly for one embodiment of a latch and release tool connection of the present invention;

5 a horizontal cross-sectional view along the in 4 depicting line 5-5 and showing the spring loaded stop / release pads in more detail;

6 a horizontal cross-sectional view along the in 4 is revealed line 6-6 and shows the clamping fingers in more detail;

7 an axial cross-sectional view of in 4 disclosed locking and releasing unit in a running position for engaging in the 1 represents the disclosed stinger subunit;

8th an axial cross-sectional view of in 4 disclosed locking and releasing unit in a locked position at the in 1 represents a stinger subunit; and

9 an axial cross-sectional view of in 4 disclosed locking and releasing unit in a released position at the in 1 represents a disclosed stinger subunit.

The The present invention will now be described with reference to the drawings on the basis of examples of production and application of the same invention be described in more detail. Obtain identical reference numbers thereby within the entire text on the respective figures of the drawings, to similar ones or to illustrate the same parts.

The currently the most common preferred embodiment The present invention consists of a locking and release link for the application with perforating gun sections, which is one of the most challenging Applications of the present invention represents. A specialist However, it will be appreciated in this field that the present invention also for the joining of other types of deep hole tools and simple pipe sections can be applied.

In the 1 represented structures of the stinger subunit 10 should first be described in detail, and then the structures of in 2 disclosed locking subunit 100 , Next, we will describe in more detail how the structures cooperate and are applied for locking perforating gun sections with ordinary slide units and a clamp, or through a well slide shaft. With respect to the application with a blowout pusher well, we assume here a well with lower seal / slide rams and upper actuation rams.

stinger

With reference to 1 becomes a stinger sub unit here 10 The currently most preferred embodiment of the present invention is shown in axial cross-sectional view. In general, the stinger subunit includes 10 a measuring section 12 , a slider settling section 14 , a bell connection section 16 , and a Stingerinternes explosive transmission system 18 , In accordance with the currently most preferred embodiment of the present invention, the stinger subassembly is generally symmetrically disposed about a central stinger axis A ₁ .

In 1 is the stinger subunit 10 shown with its central axis A ₁ in a vertical orientation in such a manner that the measuring section 12 oriented upwards. The orientation thus illustrated is that in which the stinger subunit 10 would normally be located for use in the wellbore of a wellbore. References to the terms "upward,""downward,""above,""below," and other relative terms are to be understood by a person skilled in the art as references to the orientation of the 1 of the drawings illustrated stinger subunit 10 Understood.

The stinger subunit 10 is for customizing to the in 2 the drawings disclosed locking subunit 100 adapted and will now be described in more detail below.

Measuring section of the stinger subunit

With reference to 1 includes the measuring section 12 the stinger subunit 10 preferably a tip 20 , a first Meßrampenfläche 22 , a thigh area 24 , a second Meßrampenfläche 26 , a measuring recess 28 , a first Meßansatzfläche 30 , a Meßabsetzfläche 32 , a second measurement area 34 , and a centralizer area 36 , From the total axial length L _{1 of} the stinger subunit 10 represents the measuring section 12 an axial measuring length L ₂ .

In accordance with the currently most preferred embodiment of the present invention, the tip presents 20 a flat, round surface comprising a tip diameter D ₁ . From the top 20 runs the first Meßrampenfläche 22 frusto-conical and extends in diameter in the downward direction along the axis A ₁ from the top 20 to the thigh area 24 , This first measuring ramp surface 22 is oriented upwards and helps with the deflection and guidance of the measuring section 12 the stinger subunit 10 into the locking subunit 100 , as will be described in more detail later. The thigh area 24 provides a structure for fitting to the latching subunit 100 and includes a leg diameter D ₂ .

Under the thigh area 24 is the second Meßrampenfläche 26 , the measuring recess 28 , and the first measurement attachment surface 30 , According to the currently most preferred embodiment of the present invention 1 disclosed stinger subunit 10 is the second measuring ramp surface 26 preferably frusto-conical and reduces its diameter from the leg surface 24 from in the downward direction along the axis A ₁ . This second Meßrampenfläche 26 is therefore oriented downwards and deflects the clamping fingers of the locking subunit 100 from the recesses 28 when the clamping fingers relative to the stinger subunit 10 be moved upward, as will be described in more detail below. In accordance with the presently most preferred embodiment of the present invention, the measuring recess exists 28 preferably from a circumferential recess. The clamping fingers can therefore be independent of the relative rotational position of the stinger subunit 10 and the latch subunit 100 as described in more detail below in the Meßaussparung 28 intervention. The circumferential measuring recess 28 includes a recess diameter D ₃ . The first measuring attachment surface 30 is oriented upwards and defines the lower end of the recess 28 ,

Below the first measurement area 30 is the Meßabsetzfläche 32 and the second measurement interface 34 , According to the currently most preferred embodiment of in 1 disclosed stinger subunit 10 is the Meßabsetzfläche 32 cylindrical and as described in more detail below for fitting in the lower portion of the housing of the locking subunit 100 adapted. The cylindrical Meßabsetzfläche 32 includes a settling diameter D ₄ . The second measurement area 34 is oriented upwards and serves as a mechanical stop for the further introduction of the measuring section 12 the stinger subunit 10 in the housing of the locking subunit 100 as described in more detail below.

Below the second measurement area 34 is the centralizer area 36 , According to the currently most preferred embodiment of the present invention 1 disclosed stinger subunit 10 the centralizer surface is cylindrical, has a centralizer diameter D ₅ , and is for centralizing the stinger subunit 10 adapted within the tube assembly of a wellbore.

slip landing the stinger subunit

With further reference to 1 In the drawings, there is the slider settling section 14 the stinger subunit 10 under the centralizer area 36 of the measuring section 12 , The slider settling section 14 includes a first slider settling attachment surface 38 , a slider settling surface 40 , and a second slider settling attachment surface 42 , The slider settling section 14 is preferably integral with the measuring section 12 shaped the stinger subunit. Of the total length L _{1 of} the Stingerunterereinheit takes the Schieberabsetzabschnitt 14 the stinger subunit 10 an axial settling length L ₃ to complete.

The first slider settling attachment surface 38 is oriented downwards and defines the top of the slider landing surface 40 , The slider settling surface 40 is cylindrical, includes a slide settling diameter D ₆ , and is structurally adapted so that a slide unit on the drill floor or the seal / slide rams of a blowout preventer may engage and hold the same as described in more detail below. The second slider attachment surface 42 is upwardly oriented and defines the lower end of the slider seating surface 40 , The recessed slider placement surface 40 indicates a positive engagement of the seal / slide rams of a blowout preventer. However, one of ordinary skill in the art will readily recognize that the slider landing surface 40 in comparison with the largest overall diameter of the stinger subunit 10 not be spared.

Bells connecting portion the stinger subunit

With further reference to 1 defines the bell connection section 16 the stinger subunit 10 under the second slider attachment surface 42 the lower end of the Schieberabsetzabschnitts 14 , The structure of the bell connection section 16 can be made of a standard form and adapted for corresponding standard pin connections on Perforierungsgunabschnitten. The bell connection section 16 is preferably integral with the Schieberabsetzabschnitt 14 shaped the stinger subunit. Of the total length L _{1 of} the stinger subassembly takes the bell connection section 16 the stinger subunit 10 an axial bell length L ₄ to complete.

According to the currently most preferred embodiment of the present invention, the bell connection section comprises 16 a generally tubular body symmetrically disposed about the central axis A _{1 of} the stinger and a cylindrical connecting surface 44 defined with a bell diameter D. ₇ The interior of the bell connection section 16 includes a bell sealing area 46 , a female threaded hole section 48 , and an end seat portion 50 which are formed in the same. The interior of the bell connection section 16 is adapted for receiving and engaging a structured pin connection with a corresponding external thread. The bell sealing area 46 For example, it is adapted for providing a surface for compression of one or more O-ring seals on a correlatively structured pin connection. The cooperation of the bell sealing area 46 with the corresponding structure and the O-ring seals of a corresponding pin connection forms a pressure-resistant seal. In this way, the bell sealing portion 16 Structurally adapted for the creation with the help of the correspondingly structured external threaded pin connection of a perforating gun connection (not shown here). The bell diameter D ₇ is also normally adapted for the stinger subunit 10 centralize within the tube assembly of a wellbore.

Stinger internal explosive transmission system a stinger subunit

With further reference to 1 of the drawings is the Stinger internal explosive transmission system 18 preferably centrally within the stinger subunit 10 positioned. In accordance with the currently most preferred embodiment of the present invention, the stinger-internal explosive transmission system comprises 18 an internal one stinger 52 extending from a first end 54 next to the top 20 of the measuring section 12 through the same measuring section, the slider / Dichtungsrammenabsetzabschnitt 14 , and in the bell connection section 16 to a second end 56 next to the end seat section 50 of the bell connection portion. The first end 54 the internal Stingerkammer 52 is with the help of a fabric material 58 sealed the top 20 of the measuring section 12 Are defined. Inside the internal tubular sting chamber 52 next to the first end 54 is a stinger accessory charge 60 positioned. The additional charge is for igniting a Stingerzündschnur 62 which is essentially along the entire length of the chamber 52 is positioned. A stinger initiator section 64 is located at the second end 56 the internal Stingerkammer 52 ,

With reference to 2 In the drawings, here is the stinger initiator section 64 of the Stinger internal explosive transmission system 18 shown in more detail. The section 64 will be next to the threads 48 the bell connection section 16 the stinger subunit shown. According to the currently most preferred embodiment of the present invention, the stinger initiator section comprises 64 a firing pin housing 66 with an initiator holder 68 which threads into a second end 56 the internal Stingerkammer 52 screwed in and with O-ring initiator seals 70 and 72 is sealed. The end of the fuse 62 is with an end seal 74 next to the firing pin housing 78 fitted. A firing pin 76 is with the help of shear pins 78 inside the firing pin housing 66 attached. The firing pin 76 is for ignition with the help of a fuse 62 in the direction of the stinger initiator 80 adapted. According to the present invention, this initiator becomes 80 from the firing pin 76 deformed, but not broken, so that a seal between the interior of the bell connection section 16 is maintained.

As will be described in more detail below is the Stinger internal explosive transmission system 18 adapted to detonate the perforation charges from a perforating gun section through the stinger subunit 10 and forwards and transmits to the next perforating gun section, which by means of the bell connection section 16 the stinger subunit 10 was created. To transfer the detonation from the stinger subunit 10 through the bell connection section 16 to help the next perforating gun section, which was created by means of the bell connection section, is the interior of the bell connection section 16 as previously described sealed against entry of well fluid.

Alternative end section and disposable end cap for Stinger subunit

With reference to 3 In the drawings and in accordance with an alternative embodiment of the present invention, an alternative structure for a measuring section will be described herein 12a offered a stinger subunit. The measuring section 12a includes an upper end portion 82 which is for receiving a disposable end cap 84 adapted.

The upper end section 82 of the measuring section 12 the stinger subunit 10 includes the first end formed therein 54 the internal Stingerkammer 52 , The initiator charge received by the stinger 60 is within the first end 54 the internal Stingerkammer 52 positioned. The upper end section 82 includes external thread 86 , Under the external thread 86 is an O-ring groove 88 shaped, which for receiving and holding a sealing O-ring 90 adapted.

The disposable end cap 82 includes outer surfaces 20a . 22a , and 24a which substantially the above with respect to the measuring section 12 described areas 20 . 22 , and 24 correspond. The disposable end cap 82 further includes a tissue end portion 58a which is the tissue section described above with reference to the measuring section 58 equivalent. The body of the end cap 82 comprises a generally bell-shaped interior with an internally threaded portion 92 , The internal thread section 92 the end cap 82 is for screwing into a corresponding external thread section 86 adapted, which on the body of the measuring section 12a is shaped. Under the female thread section 92 there is an end cap sealing surface 94 which is for sealing against an O-ring 90 which is in the O-ring groove 88 is positioned when the end cap on the measuring section 12a is screwed on. So the stinger subunit 10 with a disposable end cap 82 be equipped so that the stinger subunit can be reused.

LOCK IN UNIT

With reference to 4 of the drawings is here a locking subunit 100 according to the currently most preferred embodiment of the present invention in the form of an axial cross-sectional view. In general, this locking subunit includes 100 a pin connection section 102 , a body section 104 , spring-loaded stop / release pads 106 , a spring-loaded housing 108 , Clamping fingers 110 , and an interlocking explosive transmission system 112 , In accordance with the currently most preferred embodiment of the present invention, the latch subassembly is 100 With Except the listed modifications generally arranged symmetrically about the central axis A ₂ .

In 4 is the locking subunit 100 shown with its central axis A ₂ in a vertical orientation and in such a way that the housing portion 106 is oriented downwards. This orientation is the one in which the latch subunit 100 will normally be in the wellbore of a wellbore during use. Again, the terms "up", "down", "above", "below", and other relative terms refer to the orientation of the in 4 the drawings illustrated locking subunit 100 ,

Pin connector portion the locking subunit

With reference to 4 of the drawings becomes the latch subassembly 100 presented and described in detail here. In particular, the pin connection section is located 102 here at the top of the locking subunit 100 , The structure of the pin connection section 102 may consist of a standard form adapted for corresponding standard bell connections on perforating gun sections. Of the total length L _{5 of} the locking subunit 100 takes the pin connection section 102 the locking subunit an axial pin length L ₆ to complete.

For the purpose of this description, we assume that a corresponding bell connection portion of a perforating gun unit (not shown here) is made by means of the latch subassembly and has the same structure as the bell connection portion 16 , which is discussed above in connection with the stinger subunit 10 has been described. The pin connection section 102 is therefore a generally tubular body which extends symmetrically about the locking axis A ₂ and an end surface 114 , a male threaded pin section 116 , a dock ramp area 118 , Pin sealing surfaces 120 , O-ring pin grooves 122 , a pin attachment area 124 , and a connection centralizer area 126 Are defined. The pin connection section 102 is adapted for connection to a correspondingly structured threadlock connection portion of a perforating gun section. When the pin connection section 102 and a corresponding bell connecting portion of a perforating gun portion are moved toward each other, the pin connecting portion 102 introduced into the open end portion of the bell connection portion. The external threaded pin section 116 is then connected to the female threaded portion of the corresponding bell connection portion. The dock ramp area 118 helps with the pin connection section 102 into the open end portion of the corresponding bell connection portion. The O-ring pin grooves 122 which are on the pin sealing surface 120 are adapted to receive O-rings which seal the pin sealing surface 120 assist with the aid of the bell sealing portion of a corresponding bell connection portion of a perforating gun portion. The pin sealing surface 120 also aids in the alignment of the central locking axis A _{2 of} the locking subunit and its pin connection portion 102 on the corresponding bell connection portion of a Perforierungsgunabschnitts. The pen end surface 114 and the pin attachment surface 124 represent mechanical stops against excessive tightening of the threaded connection between the pin connection portion 102 and a corresponding bell connection portion of a perforating gun section. The connection centralizer area 126 includes a pin diameter D ₈ and is for centralizing the locking subunit 100 adapted within a tube assembly of a wellbore.

According to the presently most preferred embodiment of the present invention, the lower end of the bell connection portion comprises 102 continue an inward-oriented projection 128 , As will be described in more detail below helps this projection 128 , the spring-loaded stop / release pads on the body section 104 to keep.

Body portion of the locking subunit

With further reference to 4 the drawings consists of the body section 104 the locking subunit 100 from a structural part attached to the pin connection section 102 is attached. The body section 104 includes an upper body portion 130 which extends into the pin connection section 102 extends into a central body portion 132 , and a lower body portion 134 , The upper body section 130 is for securely attaching the body section 104 at the pin connection portion 102 , As will be described in more detail below are the spring-loaded stop / release pad 106 with the central body section 132 connected, and the spring-loaded housing 108 and the clamping fingers 110 are at the lower body portion 134 attached.

According to the currently most preferred embodiment of the present invention, the upper body portion is made 130 from a structural part with the general shape of a cylindrical spindle or another solid structural part which is suitable for connection to the pin connection section 102 the locking subunit 100 adapted. The upper body portion includes an externally threaded portion adapted for screwing in a corresponding internal thread formed in the pin connection portion 102 is shaped.

According to the presently most preferred embodiment of the present invention, the central body portion 132 of a structural part with a generally cylindrical structure with a central total body diameter D ₉ . The central body section 132 is preferably integral with the upper body portion 130 shaped. The central total body diameter D ₉ is smaller than the connection centralizer diameter D _{8 of} the pin connection portion 102 and therefore allows attachment of the spring loaded stop / release pads 106 on the outside of the central body section 132 , Nevertheless, the spring-loaded stop / release pads present 106 nevertheless an overall profile for the locking subunit 100 , which is not larger than the Verbindungszentralisiererdurchmesser D ₈ . So can the locking subunit 100 be passed through a Tieflochrohranordnung a desired size.

A series of alignment holes, such as the two alignment holes shown 136a and 136b is on the central body section 132 shaped. Each of these alignment bores preferably consists of a cylindrical bore formed in the central body portion 132 shaped and radially oriented about the central locking axis A ₂ around. As will be described in more detail below are the alignment holes 136a - b for holding the stop / release pads 106 on the central body section 132 adapted. Two further alignment bores (not shown) are preferably radially 180 degrees apart and 90 degrees from the alignment bores, respectively 136a and 136b oriented away. There are therefore a total of four alignment holes radially 90 degrees apart from each other about the central locking axis A ₂ arranged around. A series of spring bores, such as the two upper spring bores shown here 138a - b and the in 4 illustrated two lower spring bores 140a - b are in the central body section 132 shaped. Each one of these spring bores 138a - b and 140a - b preferably consists of a cylindrical bore, which in the central body portion 132 shaped and radially oriented about the central locking axis A ₂ around. The upper spring bores 138a - b are each for receiving an upper coil spring 142 adapted to the same, and the lower spring bores 140a - b are each in a similar manner for receiving a similar coil spring 144 adapted to the same.

The two upper spring bores 138a and 138b are preferably as in 4 shown radially 180 degrees apart from each other about the central locking axis A ₂ around. The upper spiral springs 142 are therefore positioned in these two upper spring bores and can be charged to exert opposed radial forces. Two further upper spring bores (not shown here) are preferably radially 180 degrees from each other and each 90 degrees from the upper spring bores 138a and 138b oriented away. There are therefore a total of four upper spring bores radially 90 degrees apart from each other about the central locking axis A ₂ arranged around. As will be described in more detail below, each of the four upper coil springs 142 (of which in 4 only two shown) which are mounted in the upper spring bores, are charged to exert a force which is another upper coil spring 142 , which is mounted in a radially opposite upper spring bore, is opposite.

In a similar way are the two lower spring bores 140a and 140b preferably radially 180 degrees apart as in 4 represented around the central locking axis A ₂ around. Two further lower spring bores (not shown here) are preferably radially 180 degrees from each other and each 90 degrees from the lower spring bores 140a and 140b oriented away. There are therefore a total of four lower spring bores radially 90 degrees apart from each other about the central locking axis A ₂ arranged around. As will be described in more detail below is one of the four lower coil springs 144 (of which in 4 only two are shown) mounted in the lower spring bores loaded to exert a force which is another lower coil spring 144 opposite, which is fixed in a radially opposite lower spring bore.

According to the presently most preferred embodiment of the present invention, the lower body portion 134 of a structural part with a generally cylindrical structure and a lower body diameter D ₁₀ . The lower body section 134 is at the central body part 132 attached.

The lower body section 134 includes a sleeve portion 146 which is preferably integrally formed thereon. The cuff section 146 defines an upward direction tete cuff attachment surface 148 , As will be described in more detail below, the cuff attachment surface helps 148 in the attachment of the spring-loaded housing 108 at the lower body portion 134 , In addition, the cuff section provides 146 additional structural material for connecting the spring loaded housing 108 with the same.

The lower end of the lower body section 134 defines a generally bell-shaped opening 150 , As will be described in more detail below is the bell-shaped opening 150 for receiving the measuring tip 20 and the first measuring ramp surface 22 of the measuring section 12 the stinger subunit 10 adapted.

Next is the lower end of the lower body portion 134 next to the bell-shaped opening 150 according to the presently preferred embodiment of the present invention with the clamping fingers 110 connected.

The lower body diameter D ₁₀ preferably substantially equals the central total body diameter D ₉ for the central body portion 132 , The lower body diameter D _{10 of} the lower body portion 134 is smaller than the connection centralizer diameter D _{8 of} the pin connection portion 102 and therefore allows the fastening of the spring-loaded housing 108 on the outside of the lower body section 134 , Nevertheless, the spring-loaded housing still presents an overall profile for the locking subunit 100 , which is not larger than the Verbindungszentralisiererdurchmesser D ₈ . So can the locking subunit 100 be passed through a Tieflochrohranordnung a desired size. In a similar manner, the diameter of the sleeve portion 146 still smaller than the connection centralizer diameter D _{8 of} the pin connection section 102 although this is greater than the lower body diameter D ₁₀ . This smaller diameter allows attaching the spring-loaded housing 108 on the outside of the lower body section 134 , where still an overall profile for the locking subunit 100 which is not larger than the connection centralizer D ₈ . In this way, the locking subunit 100 be passed through a Tieflochrohranordnung a desired size.

Spring-loaded stop / release pads the locking subunit

With reference to 4 and 5 of the drawings are the spring loaded stop / release pads 106 here at the central body part 132 attached. Of the overall length L _{5 of} the latch subassembly, take the spring-loaded stop / release pads 106 an axial cushion length L ₇ to complete.

In accordance with the presently most preferred embodiment of the present invention, the structure of the spring-loaded stop / release pads 106 is based on a tubular structure, which is divided into four identical sections, as shown in the drawings in 4 with the help of the two pillows 152a and 152b is shown. All four of the pillows 152a - d are in 5 shown. Overall, the four cushions present the spring-loaded stop / release pads 106 a total pad diameter D ₁₁ . The total pad diameter D _{11 of} the spring loaded stop / release pads 106 is not larger than the connection centralizer diameter D _{8 of} the pin connection portion 102 , The locking subunit 100 can therefore be passed through a Tieflochrohranordnung a desired size. How best 5 It can be seen that the four pillows are 152a - d on the central body section 132 over the radially oriented springs, such as the upper springs 142 , positioned. This is how the feathers exercise 142 a radial external force on the cushions 152a - d out.

The upper end of each of the pillows includes as in 4 for the two pillows 152a and 152b each also represents a bracket 154a and 154b , which is adapted for fitting the same in the four alignment holes and, for example, in 4 for the alignment holes 136a and 136b is shown. In this way, the brackets help to maintain the vertical position of the cushions on the central body part 132 to maintain.

According to the presently most preferred embodiment of the present invention, the upper end of each of the cushions continues to extend as in FIG 4 for the two pillows 152a and 152b presented to the projection 128 of the pin connection section 102 , This helps keep the pillows against the springs 142 and 144 to keep. As in 4 is shown in the lower end of each of the pillows as here for the pillows 152a and 152b each represented a shallow recess 156a and 156b shaped. These shallow recesses are identically positioned on each of the cushions so that the recesses define an at least partially circumferential recess when the four cushions surround the central body portion 132 be positioned around. The recesses are therefore for the positioning of a tubular sleeve 158 over the lower end of the pillow 152a - d adapted. The cooperation of the shallow recesses with the tubular cuff 158 Holds the four pillows, which are here through the pillows 152a and 152b be represented, against the upper springs 142 and the lower springs 144 , The four pillows are so on the central body section 132 spring-loaded.

For attaching the spring loaded stop / release pads to the central body portion 132 becomes the body section 104 from the bell connection section 102 separated. The row of upper feathers 142 then be like in 4 and 5 represented in the upper spring bores 138a - d of the central body section 132 positioned, and the row of lower springs 144 will be like in 4 for the lower spring bores 140a - b shown positioned in the lower spring bores of the central body portion. The pillows 152a - d then become over the central body section 132 positioned so that the bracket 154 of every pillow as in 4 for the alignment holes 136a - b shown positioned in one of the alignment holes. The tubular cuff 158 will be like in 4 positioned above the cushion, around them against the upper springs 142 and the lower springs 144 to keep. The upper body section 130 of the body section 104 is then at the bell connection section 102 attached so that the upper ends of the cushions are as in 4 represented against the upper springs 142 and the lower springs 144 being held.

Spring loaded housing of Latch subassembly

With further reference to 4 the drawings is the spring-loaded housing 108 here at the lower part of the body 134 attached. The total diameter D _{12 of} the spring-loaded housing 108 is no larger than the pin centralizer diameter D ₈ , with the locking subunit 100 can be passed through a Tieflochrohranordnung a desired size. When the spring-loaded housing 108 determined and how in 4 the drawings shown is ready, the housing 108 by an axial distance L ₈ from the lower end of the spring loaded stop / release pads 106 be separated. As will be described in more detail below is the spring-loaded housing 108 however, for axially moving it in an upward direction on the lower body portion 134 adapted first to close the axial distance L ₈ , and then to the lower end of the spring-loaded stop / release pad 106 to overlap. Of the total length L _{5 of} the locking subunit 100 takes the spring-loaded housing 108 an axial length L ₉ , when the same in the in 4 position shown.

In accordance with the presently most preferred embodiment of the present invention, the spring loaded housing includes 108 a substantially tubular housing part 160 which is for pushing on the lower part of the body 134 adapted. As will be described in more detail below is the tubular housing part 160 preferably formed from two sections, ie an upper housing section 160a , and a lower housing portion 160b , The tubular housing part 160 includes an inner diameter which is larger than the lower body diameter D _{10 of} the lower body portion 134 however, it is for pushing over the sleeve portion 146 of the lower body section 134 adapted. Thus, between the lower body diameter D _{10 of} the lower body portion 134 and the inner diameter of the tubular housing part 160 the spring-loaded housing 108 a first annular space 102 Are defined. The upper end of the first annular space 162 is open. The tubular part 160 includes an inwardly directed flange 164 , which together with the tubular part 160 at the lower body portion 134 can slide along and the lower end of the first annular space 162 Are defined. As will be described in more detail below is the first annular space 162 for moving over the lower ends of the four cushions 152a - d adapted when these cushions radially against the springs 142 and 144 pressed together, so the pillows 152a - d present a smaller diameter profile.

The flange 164 defines the upper end of a second annular space 166 , The lower end of the second annular space 166 goes through the upwardly aligned cuff attachment surface 148 of the cuff section 146 of the lower body section 134 Are defined. The housing spring 168 which at its lower end by the upwardly aligned cuff attachment surface 148 of the cuff section 146 is determined, exerts an upward force against the flange 164 on the tubular housing part 160 out.

This from the spring 168 applied upward force is parallel to the central axis A ₂ .

One or more retaining pins such as the screws 170 be through the tubular housing part 160 and in the cuff section 146 of the lower body section 134 hammered or screwed in. So hold the retaining screws 170 the tubular housing part over the lower body portion 134 against the force of the housing spring 168 which are within the second annular space 166 is positioned.

The lower end of the tubular housing part 160 includes an inwardly directed deflecting structure 172 , for the intervention of the clamping fingers 110 into the stinger subunit 10 , as continue un to be described in more detail. According to the currently most preferred embodiment of the present invention, the deflection structure comprises 172 a first deflection ramp surface 174 , an intervention surface 176 , and a second deflection ramp surface 178 , The first deflection ramp surface 174 is frusto-conical and reduces its diameter downwards along the axis A _{2 of} the locking subunit 100 , The intervention surface 176 defines an inner cylindrical wall below the first deflection ramp surface 174 , The second deflection ramp surface 178 is frusto-conical and widens its diameter down along the axis A _{2 of} the locking subunit 100 ,

As already mentioned above, the tubular housing part 160 According to the currently most preferred embodiment of the present invention, it is preferably formed from two sections, ie an upper housing section 160a , and a lower housing portion 160b , The upper housing section 160a and the lower housing section 160b are bolted together and with one or more screws 180 held. This separable housing structure allows easier installation of the locking unit 100 , For example, the lower part of the body becomes 134 from the central body portion 132 removed so that the upper housing section 160a with its upper end over the lower housing section 134 can be placed. If the lower housing section 160b integral with the upper housing section 160a could be shaped, the deflection structure 172 otherwise not over the diameter of the sleeve section 146 on the lower body section 134 slide.

Lastly, according to the currently most preferred embodiment of the present invention, between the lower body portion 134 and the tubular housing part 160 a housing snap ring seal 182 present, which prevents downward movement of the housing and unintentional release thereof during insertion into, and removal from, the borehole. The snap ring 181 dennt about the inner diameter of the pin thread of the housing 160a away.

For attaching the spring-loaded housing 108 on the lower housing section 134 becomes the lower housing section 134 from the central body portion 132 separated. The housing spring 168 is then over the lower body section 132 positions and slides down until they are from the upwardly aligned cuff attachment surface 148 at the sleeve portion 146 of the lower body section 134 is stopped. The upper housing section 160a is then over the lower body section 132 positioned and slides down, leaving the inward-facing flange 164 the feather 168 as in 4 shown compressed. One or more retaining screws 170 are then through the tubular housing part 160 and in the cuff section 146 of the lower body section 134 hammered or screwed in. This is how the retaining screws hold 170 the tubular housing part over the lower body portion 134 against the force of the housing spring 168 which are within the second annular space 166 is positioned. The lower housing section 160b becomes from the lowest end of the lower body section 134 pushed up. The lower housing section 160b is then in the upper housing section 160a screwed in and with one or more set screws 180 recorded.

clamping finger the locking subunit

With further reference to 4 the drawings are the clamping fingers 110 the locking subunit 100 here at the lower part of the body 134 attached. At least two clamping fingers 110 , such as the first and second clamping fingers 182a and 182b , are used to. One skilled in the art will recognize, however, that more tensioning fingers may be used which would be particularly desirable for a larger locking subassembly for use in larger downhole tube arrangements. The curved extension of each of the clamping fingers 182a and 182b is only a matter of design and is expected to be up to 90 degrees of a radial arc around the locking axis A ₂ . Thus, if desired, four or more clamping fingers 110 for the locking subunit 100 be applied. According to the currently most preferred embodiment of the present invention, as shown in FIG 6 The drawings show six clamping fingers 182a - f be applied. With further reference to 4 The drawings include each of the individual clamping fingers, which here by the clamping fingers 182a and 182b are represented, a kinking section 184 and a fingertip section 186 ,

The upper end of the kink section 184 of each tension finger 182a - b is an extension of the lower body part 134 , The kink section 184 is adapted so that it can be sufficiently deformed to be relative to that in 4 The drawings shown relaxed position can be deflected inwards or outwards. On the other hand, the kinking section 184 of each tension finger 182a - b rotatably on the lower body portion 134 next to the bottom of the bell-shaped opening 150 be attached.

According to the currently most preferred embodiment of the present invention, the fingertip section comprises 186 of each of the tension fingers 182a - b a series of surfaces which are for deflecting them through and engaging other surfaces of the stinger subunit 10 and the latch subunit 100 are adapted. In particular, the fingertip portions of each of the clamping fingers 182a - b a first outward-facing ramp surface 188 , an outward-oriented vertical surface 190 , a second outward-facing ramp surface 192 , a first inward-facing ramp surface 194 , an inward-facing vertical surface 196 , and a second inward-facing ramp surface 198 , The cooperation of these areas 188 - 198 with other surfaces and structures will be described in more detail below.

Internal locking Explosive transfer system

With further reference to 4 of the drawings is the interlocking explosive transmission system 112 preferably centrally within the locking subunit 100 positioned. According to the presently most preferred embodiment of the present invention, the interlock-type explosive transmission system comprises 112 an internal lock chamber 200 , This chamber 200 extends from a first end 202 next to the end face 114 of the pin connection section 102 and through the entire body section 104 through to a second end 204 next to the bell-shaped opening 150 of the lower body section 134 , Inside the internal lock chamber 200 next to the first end 202 is a supplementary charge received the lock 206 positioned. A locking fuse 208 is essentially along the entire length of the chamber 200 positioned. An additional lock charge 210 and a downwardly oriented shaped charge 212 are in the chamber 200 next to the second end 204 the chamber 200 positioned. As will be described in more detail below is the interlocking explosive transmission system 112 for forwarding and transmitting the detonation of the perforation charges from a perforating gun section connected to the pin connection section 102 the locking subunit 100 was made by the locking subunit 100 and to a stinger subunit 10 adapted, which with the locking subunit 100 is locked. As mentioned above, the Stinger sub-unit conducts and transmits 10 the detonation in turn to the next Perforierungsgunabschnitt, which with the bell connection section 16 the stinger subunit 10 was produced.

Method for applying the perforating gun locking and releasing connection

With reference to 7 of the drawings becomes the Stinger subunit 10 shown here in the position in which it is when the slider settling surface 40 the slider settling section 14 is held by the seal / slide rams of a downhole slide (not shown here). For the purpose of this description, the Stinger subunit 10 already created here with a lower Perforierungsgunabschnitt (not shown here), which was introduced by the seal / slide rams of the blowout preventer. The locking subunit 100 was here created with an upper perforating gun section (not shown) which was installed in a lubricant unit above the downhole slide. The upper perforating gun section with the locking subunit 100 at the lower end of the same is then through the downhole slide to the measuring section 12 the stinger subunit 10 lowered. The locking subunit 100 is then lowered until the deflection structure 172 the spring-loaded housing 108 from the second approach surface 34 over the centralizer area 36 the stinger subunit 10 as in 7 is stopped shown.

In this, in 7 shown insertion position is the tip 20 of the measuring section 12 the stinger subunit 10 a little bit from the top of the bell-shaped opening 150 removed, which in the lower body portion 134 is shaped. In this current position, the fingertip section can 186 of each of the individual clamping fingers 182a and 182b at least partially in the recess 28 of the measuring section 12 the stinger subunit 10 be distracted into it. How out 7 the housing spring is visible 168 in the second annular space 166 determined which of the lower body portion 134 , the tubular housing part 160 , and the flange 164 is defined. As already described above, the potential energy of the housing spring 168 from the retaining screws 170 held by the tubular housing portion 160 in the cuff section 146 of the lower body section 134 are screwed in.

At this point, a downward force is applied to the latch subassembly 100 imposed. This force is transmitted axially through the latch subassembly 100 to the lower body section, through the retaining screws 170 , through the spring-loaded housing 108 at the deflection structure 172 , and the second approach surface 34 over the centralizer area 36 the stinger subunit 10 transfer. A sufficiently large downward force is then applied to the latch subassembly so that the Hal tesch rob 170 between the tubular housing part 160 and the lower body portion 134 abort. If the retaining screws 170 are broken off, the tubular housing 160 from the lower body portion 134 solved. The housing spring 168 which is between the surface 148 of the cuff section 146 of the lower body section 134 and the flange 164 of the tubular housing part 160 was established, is therefore now released, and drives the slidably mounted housing body 160 on the lower housing section 134 up.

With reference to 8th of the drawings becomes the latch subassembly 100 here in a locked position on the stinger subunit 10 shown. One of each retaining screws 170 is shown here after it has been broken into two sections. An outer section 170a the broken retaining screw moves together with the upwardly moving tubular housing part 160 , An inner section 170b the broken retaining screw remains at the sleeve portion 146 of the lower body section 134 , The upward movement of the tubular housing part 160 on the lower body section 134 allows the locking subunit 100 to get to the top 20 of the measuring section 12 the stinger subunit 10 sit up. From the detached housing spring 168 driven, the tubular housing part moves 160 on the lower body section 134 upwards, up from the pillows, such as the pillows 152a - b the spring-loaded stop / release pad 106 is stopped. At this point, the potential energy of the housing spring 168 only partially released, ie by the driving of the tubular housing part 160 up. The upward movement of the tubular housing part 160 causes the deflection structure 172 therefore, to force the tension fingers inward and distract. In particular, the second outward-facing ramp surface engages 192 of the fingertip section 186 inside in the distracting first ramp surface 174 the deflection structure 172 one. In this way, the fingertip section 186 of each of the tension fingers 182a and 182b into the measuring recess 28 of the measuring section 12 the stinger subunit 10 distracted. The respective surfaces of the measuring section 12 the stinger subunit and the deflector structure 172 of the tubular housing part cooperate with the fingertip sections 186 the clamping finger 182a - b in the measuring recess 28 hold. In this way, the latch subunit 100 safely with the measuring section 12 the stinger sub unit locked. This method of locking the latch subunit 100 with the stinger subunit 10 can be done in a few seconds.

The stinger subunit 10 and the latch subunit 100 Form a finished connection between the lower and upper Perforierungsgunabschnitten (not shown here). The perforating gun sections can now be lowered to perforate the wellbore.

Of course, one of ordinary skill in the art will readily recognize that further perforating gun sections are sequentially formed by further pairs of stinger subunits 10 and locking subunits 100 can be added.

In addition, according to the currently most preferred embodiment of the present invention, a detonation signal from the latch subunit 100 to the stinger subunit 10 be transmitted. With repeated reference to 4 In the drawings, a detonation signal is transmitted from an upper perforating gun to the interlocking explosive transmission system 112 the locking subunit 100 transfer. The detonation signal from the upper perforating gun detonates the additional charge received by the latch 206 , The additional charge 206 in turn ignites the locking fuse 208 which are inside the internal lock chamber 200 is positioned. The locking fuse 208 transmits the detonation signal to the additional latch charge 210 , which the downwardly oriented, lock-shaped charge 212 detonates. This shaped cargo 212 breaks through the tissue material of the lower body portion 134 under the second end 204 the chamber 200 and fires through the stinger-lace fabric 58 the stinger subunit 10 , which with the locking subunit 100 is locked.

With repeated reference to 8th the drawings showing the locking subunit 100 in a locked position on the stinger subunit 10 shows, lies the top 20 the measuring unit 12 the stinger subunit 10 preferably on a plane with the inner surface of the bell-shaped opening 150 of the lower body section 134 the locking subunit 100 , The lock-shaped charge 212 breaks through the entire thickness of the fabric material 58 which is the top 20 of the measuring section 12 Are defined. The downwardly oriented lock-shaped charge 212 is for breaking the top 20 the subunit 10 adapted. According to the above with reference to 3 As shown in the drawings, the alternative embodiment of the stinger subassembly breaks through the downwardly oriented latching charge 212 the disposable end cap 84 ,

With repeated reference to 1 the drawings, which the stinger subunit 10 shows in detail, initializes the breaking of the tissue material 58 which is the top 20 of the Meßab -section 12 defines the Stinger internal explosive transmission system 18 , In particular, the interlocking charge breaks through 212 the material to get the stinger additional charge in this way 60 to initialize. The stinger additive charge 60 in turn ignites the Stingerzündschnur 62 inside the internal sting chamber 52 , The Stingerzündschnur 62 transmits the detonation signal to the stinger initiator section 64 which is best 2 is apparent. The firing pin 76 which is inside the firing pin housing 66 is attached, then by the fuse 62 in the direction of the stinger initiator 80 shot down. According to the present invention, the initiator becomes 80 from the firing pin 76 deformed but not broken, and a seal between the interior of the internal sting chamber 52 and the bell connection section 16 is therefore maintained. The deforming material of the initiator is displaced down to detonate the initiator. This detonation of the initiator initializes an additional charge in a perforating gun section connected to the bell connection section 16 the stinger subunit 10 connected is. This is how the detonation signal from the stinger subunit becomes 10 to an additional charge and a fuse in the lower Perforierungsgunabschnitt (not shown here) transmitted. The fuse inside the lower perforating gun section sequentially detonates the perforating gun sections in the same perforating gun section.

If a series of Perforierungsgunabschnitten using the stinger subunit 10 and the latch subunit 100 are interconnected, the detonation signal is passed through successive connections as described herein.

When the perforating gun sections within the wellbore have been detonated to detonate the wellbore, they are raised again toward the wellbore chamber. The second (upper) perforating gun section is lifted by the well slide shaft until the slider settling section 14 the stinger subunit 10 is aligned with the seal / slide rams of the well slide shaft. The seal / slide rams of the blowout pusher well engage the chain of perforating gun sections on the stinger subunit in this manner 10 seal and hold. Because the integrity of the stinger subunit 10 is maintained in this way, the locking subunit 100 from the stinger subunit 10 be removed without leakage of liquid through the seal / slide rams of the well slide shaft.

In accordance with the presently most preferred embodiment of the present invention, one clamp or the actuation rams of another downhole pusher are applied over the seal / slide rams in the downhole pusher well, the latch subassembly 100 from the stinger subunit 10 to solve. The term "actuator rams" as used herein refers to one or a number of different types of rams which are normally applied over the seal / slide rams, with shear or other types of rams which would undesirably damage the latch subassembly Exception with reference to 8th grip the operating rams in the spring-loaded stop / release pads 106 and push the pillows 152a - b in the direction of the central locking axis A ₂ radially together. This compression force acts radially outward force of the springs 142 and 144 and steers the pillows 152a - d inward toward the central body portion 132 from. This will be the effective diameter of the spring loaded stop / release pads 106 reduced. In the meantime, the tubular housing part is subject 160 continue the force of the housing spring 168 which are within the second annular space 166 is determined. Thus, the open end of the tubular housing part 160 over the pillows 152a - d glide upwards after the spring-loaded stop / release pads 106 have been pressed together enough.

With reference to 9 In the drawings, the locking subunit is shown here in a released position. The housing spring 168 holds the tubular housing part 160 over the pillow 152a - d , whereby the same in their reduced diameter form against the opposite forces of the springs 142 and 144 the spring-loaded locking cushion 106 being held. The further upward movement of the tubular housing part 160 also moves the deflection structure 172 up. This releases the finger pads 186 the clamping finger 182a - b so that the locking subunit 100 from the measuring section 12 the stinger subunit 10 can be lifted. In particular, the second Meßrampenfläche steered 26 the second inboard ramp surface 188 of the fingertip section 186 of each tension finger 182a - b if the latch subunit 100 is raised to the top. This is how the fingertip section becomes 186 of each of the tension fingers 182a - b from the Meßaussparung 28 of the measuring section 12 the stinger subunit 10 distracted. This method of releasing the locking subunit 100 from the stinger subunit 10 can be done in a few seconds. During this process, the integrity of the pressure seal of the blowout preventer shaft in the wellbore chamber can be maintained.

An example of a gun locking and dissolving compound for the Application through a 5-inch pipe arrangement

The individual dimensions of the stinger subunit 10 and the latch subunit 100 of course according to the present invention are a matter of the chosen technical design and will depend on many parameters. These parameters may include, for example, the particular size of wellbore tubing and tubing in which the stinger subassembly is to be applied. The stinger subunit 10 and the latch subunit 100 For example, they can be designed for use in a 5 inch pipe layout. However, this illustrative example is merely for the purpose of further illustrating the currently most preferred embodiment of the present invention, and the invention is not limited to these particular dimensions of this preferred embodiment.

With reference to 1 of the drawings, the stinger subunit 10 thus, for example, the following basic dimensions are included: a total axial stick length L ₁ of approximately 24 inches (61 cm), an axial gauge length L ₂ of approximately 10 inches (26 cm); an axial settling length L ₃ of about 10 inches (26 cm); an axial bell length L ₄ of about 5 inches (13 cm); a tip diameter D ₁ of about 1 inch (2.5 cm); a leg diameter D ₂ of about 2 inches (5 cm); a recess diameter D ₃ of about 1.5 inches (4 cm); a Meßabsetzdurchmesser D ₄ of about 2.5 inches (6.5 cm); a centralizer diameter D ₅ of about 3.5 inches (9 cm); a slider settling diameter D ₆ of about 3 inches (8 cm); and a bell diameter D ₇ of about 3.5 inches (9 cm).

With repeated reference to 4 In the drawings, the latch subassembly 100 for example, have the following basic dimensions: a total axial locking length L ₅ of about 30 inches (76 cm); an axial pin length L ₆ of about 8 inches (20 cm); an axial pad length L ₇ of about 9 inches (22 cm); an axial distance L ₈ of about 1.2 inches (3 cm); an axial housing length L ₉ of about 12 inches (30 cm); a pin diameter D ₈ of about 3.5 inches (9 cm); a central body diameter D ₉ of about 3.2 inches (8 cm); a lower body diameter D ₁₀ of about 2.2 inches (5.5 cm); a total pad diameter D ₁₁ of about 3.2 inches (8 cm); and a total case diameter D ₁₂ of about 3.5 inches (9 cm).

The represent embodiments shown and described here only examples. For example, the preferred embodiment for the spring-loaded housing representative of a structure for the Storing potential energy for moving the housing. One One skilled in the art will immediately recognize that modifications within the scope of the dependent claims carried out can be.

Claims (14)

A tool joint comprising the following: a stinger ( 10 ); a Stingerbehälter ( 100 ); the stinger ( 10 ) is adapted to the Stingerbehälter ( 100 ) stab; a loaded engagement part ( 172 ), which between an insertion position before piercing the stinger ( 10 ) in the Stingerbehälter ( 100 ) and a locked position after piercing the stinger ( 10 ) in the Stingerbehälter ( 100 ) is movable to the stinger ( 10 ) and the Stingerbehälter ( 100 ) to interlock with each other in this way; and a release part ( 170 ), which contains the loaded engagement part ( 172 ) holds in the insertion position, characterized in that the release part ( 170 ) the loaded engagement part ( 172 ) in order to move in this way into the locked position and the Stinger ( 10 ) and the Stingerbehälter ( 100 ) when the stinger ( 10 ) in the Stingerbehälter ( 100 ) and a setting force on the Stinger ( 10 ) and the Stingerbehälter ( 100 ) is imposed. A compound according to claim 1, wherein the Tool consists of a perforating gun. A compound according to claim 1 or 2, further comprising: a releasable stop member (10); 106 ), for stopping the engagement part ( 172 ) in the locked position, wherein the engaging part ( 172 ) moves to a released position so that the stinger ( 10 ) and the Stingerbehälter ( 100 ) can be separated from each other when the stop member ( 106 ) is solved. A compound according to claim 2, wherein the releasable Stop part is adapted so that it can be released from a clamp can. A compound according to claim 1, 2, 3 or 4, wherein the loaded engagement member (16) 172 ) on the Stingerbehälter ( 100 ) is attached. A compound according to any one of the preceding claims, wherein the stinger ( 10 ) a stinger subunit ( 10 ), which comprises the following: (i) a measuring section ( 12 ); and (ii) a stinger connection section ( 16 ), which with the measuring section ( 12 ), the stinger connecting portion ( 16 ) is adapted to make up [missing text] together; and the Stingerbehälter ( 100 ) a locking subunit ( 100 ) comprising the following: (i) a body portion ( 104 ), wherein the same body portion ( 104 ) is adapted to the measuring section ( 12 ) of the stinger subunit ( 10 ) receives; (ii) a lock connection portion ( 102 ), which with the body portion ( 104 ), wherein the lock connecting portion ( 103 ) is adapted, together with a second tool or perforating gun section, the locking subunit ( 100 ); (iii) a spring-loaded housing ( 108 ), which is displaceable on the body portion ( 104 ), wherein the spring-loaded housing ( 108 ) is adapted so that it can be displaced from an insertion position to a locked position, wherein the spring-loaded housing ( 108 ) at least one retaining pin ( 170 ) for holding the spring-loaded housing ( 108 ) in the insertion position until the retaining pin ( 170 ) breaks; and (iv) tension fingers ( 110 ) substantially within the spring-loaded housing ( 108 ) with the body portion ( 104 ), wherein the spring-loaded housing ( 108 ) a deflection structure ( 172 ), which are used for deflecting the clamping fingers ( 110 ) and the intervention thereof in the measuring section ( 12 ) of the stinger subunit ( 10 ) is adapted, wherein the spring-loaded housing ( 108 ) of the locking subunit ( 100 ) is held in the insertion position in an insertion position, for moving to a measuring section ( 12 ) of the stinger subunit ( 10 ); and wherein a setting pressure the retaining pins ( 170 ) breaks when the same set pressure on the locking subunit ( 100 ) and against the stinger subunit ( 10 ) is applied to the spring-loaded housing ( 108 ), which then on the body portion ( 104 ) is displaced in the direction of the locked position, so that the deflection structure ( 172 ) of the spring-loaded housing ( 108 ) the clamping fingers ( 110 ) so that they are in the measuring section ( 12 ) of the stinger subunit ( 10 ) and the tension fingers ( 110 ) in the locked engagement position in the measuring section (FIG. 12 ) being held. A compound according to claim 6, wherein the stinger subunit ( 10 ) a stinger internal explosive transmission system ( 18 ). A connection according to claim 6, wherein the locking subunit ( 100 ) an internal explosive transmission system ( 112 ) comprising the following: (a) an internal locking chamber ( 200 ) passing through the locking connection portion (FIG. 102 ) and through the body portion ( 104 extends); (b) an additional charge received the lock ( 206 ), which in the internal lock chamber ( 200 ) next to the locking connection portion ( 102 ) is positioned; (c) a locking fuse ( 208 ) substantially along the entire length of the internal lock chamber (FIG. 200 ) is positioned; (d) a supplementary charge transmitting the lock ( 210 ), which in the internal lock chamber ( 200 ) next to the body portion ( 104 ) is positioned; and (e) a charge shaped like the latch ( 212 ), which in the internal lock chamber ( 200 ) distal to the auxiliary charge transmitting lock ( 210 ) is positioned; wherein the in-lock binding system ( 112 ) is adapted to inhibit the firing of perforation charges from the first tool or the first perforating gun section by the latch subassembly (10); 100 ) and transmits the charge (such as the latch) ( 212 ) in the direction of the measuring section ( 12 ) of the stinger subunit ( 10 ) ignites. A compound according to claim 8, wherein the stinger subunit ( 10 ) a stinger internal explosive transmission system ( 18 comprising: (a) an internal stinging chamber ( 52 ) from a nearby tip ( 54 ) of the measuring section ( 12 ) to the Stinger connecting section ( 16 ) extends; (b) a stinger additive charge ( 60 ), which in the internal Stingerkammer ( 52 ) next to the top end ( 54 ) of the measuring section ( 12 ) is positioned; (c) a Stingerzündschnur ( 62 ) substantially along the entire length of the internal sting chamber ( 52 ) is positioned; (d) a Stingerzündstift ( 76 ), which in the internal Stingerkammer ( 52 ) is positioned; and (e) a stinger initiator ( 80 ); the Stinger internal explosive transmission system ( 18 ) is adapted to the same from the interlocking explosive transmission system ( 112 ) to ignite the ignition of the perforation charges from the latch subassembly (FIG. 100 ) through the stinger subunit ( 10 ) and to the second tool portion or the perforating gun portion which extends from the stinger connecting portion (FIG. 16 ) and the stinger subunit ( 10 ) exists to forward and transmit. A compound according to any of claims 1 to 5, wherein the stinger ( 10 ) a stinger subunit ( 10 ), which comprises the following: (i) a measuring section ( 12 ); and (ii) a device for connecting the measuring section ( 12 ) with a first tool or perforating gun section; and the Stingerbehälter ( 100 ) a locking subunit ( 100 ) comprising the following: (i) a body portion ( 104 ), wherein the same body portion ( 104 ) is adapted to the measuring section ( 12 ) of the stinger subunit ( 10 ) receives; (ii) a device for connecting the body portion ( 104 ) with a second tool or perforating gun section; (iii) a spring-loaded housing ( 108 ), which is displaceable on the body portion ( 104 ), wherein the spring-loaded housing ( 108 ) is adapted so that it can be displaced from an insertion position to a locked position; (iv) a device for holding the spring-loaded housing ( 108 ) in the insertion position on the body part ( 104 ); and (v) a device for locking the body part ( 104 ) with the measuring section ( 12 ) of the stinger subunit ( 10 ), when the spring-loaded housing ( 108 ) is moved to the locked position; wherein a locking force the device for holding the spring-loaded housing ( 108 ) breaks when the same locking force on the locking subunit ( 106 ) and against the stinger subunit ( 10 ) is imposed, so that the spring-loaded housing ( 108 ) the body portion ( 104 ) displaced into the locked position. A method of connecting a first tool section to a second tool section, the method comprising the following steps: (a) connecting a stinger (FIG. 10 ) with the first tool section; (b) joining a Stingerbehälter ( 10 ) with the second tool section; (c) the piercing of the stinger ( 10 ) fits into the Stingerbehälter ( 100 ), characterized in that the method further comprises the steps of: (d) imposing a setting force on the stinger ( 10 ) and the Stingerbehälter ( 100 ) for releasing a charged engaging part ( 172 ) from an insertion position to a locked position, for locking the stinger ( 10 ) and the Stingerbehälter ( 100 ) together. A method according to claim 12, wherein the first Tool section consists of a first Perforierungsgunabschnitt, and the second tool portion of a second perforating gun section. A method according to claim 11 or 12, further comprising the step of: clamping a releasable stop member for separating the loaded engagement member from the locked position such that the stinger ( 10 ) and the Stingerbehälter ( 100 ) can be separated from each other. A method according to claim 13, wherein the step Clamping the detachable Stop part for the separation of the charged Eingreifteils by the application of a Hand clamp is realized, or by the application of operating rams of a Blowout preventer.