CN113356803B - Cable passes through bypass screen pipe subassembly - Google Patents

Abstract

The invention provides a cable-passing by-pass screen pipe assembly, which relates to the technical field of sand prevention tools for well completion of oil fields, and comprises a top joint, a screen pipe body, a pressure gauge carrier and a bottom joint; the two ends of the sieve tube body are respectively connected with the top joint and the bottom joint, and the top joint and the sieve tube body are provided with a plurality of limiting structures for limiting the cable position; the pressure gauge carrier is mounted to the exterior of the screen body. The cable-passing by-pass screen pipe component provided by the invention is convenient for the connection of the two ends of the screen pipe body and other pipe columns on one hand, avoids the difficulty in the connection of the upper pipe column and the lower pipe column caused by the influence of the non-concentricity of the pipe columns, the overweight screen pipe body and the like on the other hand, and can effectively ensure the stability of the cable position by the top joint cooperating with the screen pipe body to limit the cable on the other hand.

Description

Cable passes through bypass screen pipe subassembly

Technical Field

The invention relates to the technical field of sand control tools for well completion of oil fields, in particular to a cable-passing by-pass screen pipe assembly.

Background

The underground pressure is one of the main contents of dynamic monitoring of the oil reservoir, and has great guiding effects on fault and oil reservoir boundary implementation, reservoir communication condition determination, stratum energy condition understanding, oil-water well production increase guidance, implementation of injection increasing measures, oil-gas production increase and final recovery. Therefore, how to couple the pressure gauge unit to the gravel packing string, how to pass the signal cable through the bypass screen pipe, how to fix the cable on the screen pipe, how to ensure the phase of each screen pipe cable, how to quickly connect the bypass screen pipes, how to quickly connect the cable screen pipe with other packing tools, and the like become a difficulty in the field.

Disclosure of Invention

The invention aims to provide a cable-passing by-pass screen pipe component which is convenient for connecting an upper pipe column and a lower pipe column and has good cable stability.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a cable-passing by-pass screen pipe assembly, which comprises a top joint, a screen pipe body, a pressure gauge carrier and a bottom joint, wherein the top joint is connected with the screen pipe body;

the two ends of the sieve tube body are respectively connected with the top joint and the bottom joint, and the top joint and the sieve tube body are provided with a plurality of limiting structures for limiting the position of a cable;

the pressure gauge carrier is mounted to an exterior of the screen body.

Further, the top connector comprises a first upper connector, a first sealing insertion rod, a connecting rod and a first cable limiting assembly;

the first sealing inserted rod and the connecting rod are connected with the bottom of the first upper joint;

the connecting rod is sleeved outside the first sealing insertion rod, a first cavity is formed between the connecting rod and the first sealing insertion rod, and a plurality of first through holes communicated with the first cavity are formed in the outer wall of the connecting rod;

the first cable limiting component is sleeved at the end part, deviating from the first upper joint, of the connecting rod, and a first slot for inserting the sieve tube body is formed among the first cable limiting component, the connecting rod and the first sealing insertion rod.

Further, the first cable limiting assembly comprises a first tightening cap and a first clamping ring;

the first back-tightening cap is sleeved at the end part, deviating from the first upper joint, of the connecting rod, and a first groove used for accommodating a cable is formed in the outer wall of the first back-tightening cap;

the first clamping ring is sleeved on the outer wall of the first back-tight cap and used for fixing the cable.

Furthermore, the sieve tube body comprises an upper connecting assembly, a base tube, a lower connecting assembly, an upper water collecting pipe, a lower water collecting pipe and a second cable limiting assembly which are sequentially connected in a threaded manner;

the outer wall of the base pipe is provided with a middle bracket, the outer wall of the middle bracket is provided with a second groove for accommodating a cable, and a middle water collecting pipe and a second pressing plate for fixing the cable are arranged outside the middle bracket;

the base pipe at two ends of the middle support is sleeved with a filter sleeve, two ends of the filter sleeve are connected with the base pipe through end rings, an outer protective sleeve is sleeved outside the filter sleeve, a cable groove is recessed in the outer wall of the outer protective sleeve, a second cavity is formed between the outer protective sleeve and the filter sleeve, a bypass conveying pipe and a bypass filling pipe are arranged in the second cavity, and the upper connecting assembly and the lower connecting assembly are both provided with a plurality of holes communicated with the second cavity;

the upper water collecting pipe is sleeved outside the upper connecting assembly, the upper connecting assembly is provided with an upper bracket, one end of the upper water collecting pipe is connected with the upper connecting assembly, and the other end of the upper water collecting pipe is connected with the outer protective sleeve, the bypass conveying pipe, the bypass filling pipe and the upper bracket;

the lower water collecting pipe is sleeved outside the lower connection assembly, the lower connection assembly is provided with a lower support, one end of the lower water collecting pipe is connected with the lower connection assembly, and the other end of the lower water collecting pipe is connected with the outer protective sleeve, the bypass conveying pipe, the bypass filling pipe and the lower support;

the outer walls of the upper water collecting pipe and the lower water collecting pipe are provided with second grooves for accommodating cables, and third pressing plates for fixing the cables are arranged on the upper water collecting pipe and the lower water collecting pipe;

the second cable limiting component is sleeved on the lower connecting component, and a second slot for inserting the sieve tube body is formed between the second cable limiting component and the lower connecting component.

Furthermore, the base pipe and the outer protective sleeve are both provided with third through holes;

the bypass filling pipe and the bypass conveying pipe are installed in the second cavity through the upper support, the lower support and the middle support, and a nozzle penetrating through the outer protective sleeve is arranged on the outer wall of the bypass filling pipe.

Furthermore, the fixing surfaces of the third pressure plate and the second pressure plate are designed with pressing protrusions.

Furthermore, the upper connecting assembly comprises a first quick connector, a first upper short section and a second upper connector which are sequentially connected;

the first quick connector is provided with a third slot matched with the top connector;

the upper water collecting pipe is sleeved outside the first upper short section and the second upper joint, and the end part of the upper water collecting pipe is connected with the first upper short section;

the upper bracket is arranged outside the second upper joint;

and one end of the second upper joint departing from the first upper short section is connected with the top end of the base pipe.

Further, the lower connection assembly comprises a first lower joint, a second sealing insertion rod, a lower connection short joint and a second quick joint;

two ends of the first lower joint are respectively connected with the bottom end of the base pipe and the second sealing inserted rod;

the lower connecting short section is in threaded connection with the outer wall of the bottom end of the first lower joint, a clamping groove used for being matched with the pressure gauge carrier is formed in the end portion of the lower connecting short section, and the end portion of the lower water collecting pipe is connected with the lower connecting short section;

the lower water collecting pipe is sleeved on the lower connecting short joint and the first lower joint, and the lower support is arranged outside the first lower joint;

the second quick connector is inserted between the lower short connecting piece and the second sealing inserted rod and is in threaded connection with the lower short connecting piece, and the second cable limiting component is sleeved on the end portion, deviating from the lower short connecting piece, of the second quick connector.

Further, the manometer carrier includes: the first buckling part, the second buckling part, the locking part and the limiting assembly are arranged on the base;

the first buckling part is hinged with one end of the second buckling part, and the other end of the second buckling part is locked through the locking part, so that the first buckling part and the second buckling part are buckled outside the second quick connector;

the design of first buckling parts top has the mounting groove that is used for installing the pressure gauge, spacing subassembly with first buckling parts is connected, in order to inject the pressure gauge for the position of mounting groove.

Further, the bottom joint comprises a third quick joint, a second upper short joint and a second lower joint which are sequentially in threaded connection;

the third quick coupling is connected with the sieve tube body;

and one end of the second lower joint, which is far away from the third quick joint, is provided with an external thread.

The cable passing by bypass screen pipe component provided by the invention can produce the following beneficial effects:

compared with the prior art, in the cable-passing bypass screen pipe assembly, the top and the bottom of the screen pipe body are respectively connected with the top joint and the bottom joint, so that on one hand, the two ends of the screen pipe body are conveniently connected with other pipe columns, the problem that the upper pipe column and the lower pipe column are difficult to connect due to the influences of non-concentricity of the pipe columns, overweight of the screen pipe body and the like is avoided, on the other hand, the top joint is matched with the screen pipe body to limit the cable together, and the stability of the position of the cable can be effectively ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic three-dimensional view of a cable-through bypass screen assembly according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of a cable-through bypass screen assembly according to an embodiment of the present invention;

FIG. 3 is a half cross-sectional view of a top sub provided in accordance with an embodiment of the present invention;

FIG. 4 is a longitudinal cross-sectional view of a screen body according to an embodiment of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at D;

FIG. 6 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 7 is an enlarged view of E of FIG. 4;

FIG. 8 is a cross-sectional view C-C of FIG. 1;

FIG. 9 is an enlarged view of FIG. 1 at B;

fig. 10 is a half sectional view of a bottom sub according to an embodiment of the present invention.

An icon: 1-a top joint; 11-a first upper joint; 12-a first sealing bayonet; 13-a connecting rod; 131-a first via; 14-a first cable stop assembly; 141-a first back-fastening cap; 142-a first snap ring; 15-a first cavity; 16-a first slot; 2-a screen pipe body; 21-a base pipe; 22-an upper header; 23-a lower water collecting pipe; 24-a second cable stop assembly; 241-a second back-tightening cap; 242-a second snap ring; 25-a middle support; 26-an intermediate water collecting pipe; 27-a second platen; 28-a filter sleeve; 29-an end ring; 210-an outer protective sheath; 2101-cable tray; 211-bypass transport pipe; 212-bypass fill tube; 213-a second cavity; 214-upper support; 215-lower support; 216-a third platen; 217-second slot; 218-a third via; 219 — first quick connector; 2191-a nozzle; 220-a first upper short section; 2201-a first elongated hole; 221-a second top sub; 222-a first lower joint; 223-a second sealing bayonet; 224-lower connecting nipple; 2241-a second elongated hole; 225-second quick connector; 226-a third cavity; 3-manometer support; 31-a first engagement portion; 311-mounting grooves; 32-a second fastening portion; 33-a locking member; 34-a first screw; 35-a second screw; 36-a tightening cap; 4-a bottom joint; 41-third quick connector; 42-a second upper short section; 421-third elongated hole; 43-second lower joint.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.

The present embodiment is directed to a cable-through bypass screen assembly, as shown in fig. 1 and 2, comprising a top sub 1, a screen body 2, a pressure gauge carrier 3 and a bottom sub 4; the two ends of the sieve tube body 2 are respectively connected with the top joint 1 and the bottom joint 4, and the top joint 1 and the sieve tube body 2 are provided with a plurality of limiting structures for limiting the position of a cable; the pressure gauge carrier 3 is mounted on the outside of the screen body 2.

The design of top connector 1 and bottom connector 4 is convenient for screen pipe body 2 to be connected with other tubular columns, and in addition, top connector 1 can cooperate screen pipe body 2 to carry out spacing jointly to the cable, guarantees that the cable is stable installs on above-mentioned cable passes through bypass screen pipe subassembly.

The structure of the top joint 1 will be specifically described below:

in some embodiments, as shown in fig. 3, the top sub 1 includes a first top sub 11, a first seal plunger 12, a connecting rod 13, and a first cable stop assembly 14; the first sealing inserted bar 12 and the connecting bar 13 are both connected with the bottom of the first upper joint 11; the connecting rod 13 is sleeved outside the first sealing inserted rod 12, a first cavity 15 is formed between the connecting rod 13 and the first sealing inserted rod 12, and a plurality of first through holes 131 communicated with the first cavity 15 are formed in the outer wall of the connecting rod 13, so that gravel slurry enters the first cavity 15 through the first through holes 131 under the action of pressure and further flows into the screen pipe body 2 when the sand bridge is formed by filling sand and is blocked; the first cable limiting component 14 is sleeved at the end part of the connecting rod 13 departing from the first upper joint 11, and a first slot 16 for inserting the screen pipe body 2 is formed among the first cable limiting component 14, the connecting rod 13 and the first sealing inserted rod 12.

Specifically, the first sealing insert rod 12 and the connecting rod 13 are both screwed with the bottom of the first upper joint 11. Facing to the direction of fig. 3, the bottom end of the connecting rod 13 is of a multi-slot structure, and can be quickly plugged and matched with the multi-slot at the top end of the sieve tube body 2, so that the situation that the phase of a cable is changed due to the fact that a pipe column connected with the top connector 1 rotates relative to the sieve tube body 2 is prevented.

Wherein, the first cable position limiting component 14 comprises a first back-up cap 141 and a first snap ring 142; the first back-tightening cap 141 is sleeved at the end part of the connecting rod 13, which is far away from the first upper joint 11, and the outer wall of the first back-tightening cap 141 is provided with a first groove for accommodating a cable; the first snap ring 142 is sleeved on the outer wall of the first back cap 141, and the first snap ring 142 is used for fixing a cable.

Specifically, the outer wall of the first back-tightening cap 141 is designed in a concave-convex claw shape, and is provided with a plurality of first grooves for accommodating cables, the cables pass through the first grooves to avoid the change of the phase of the cables when the first back-tightening cap 141 is screwed, and the first snap ring 142 is sleeved on the first back-tightening cap 141 to form a limiting structure.

As shown in fig. 4 to 7, the screen body 2 is a multi-flow passage structure, and the structure of the screen body 2 will be described in detail as follows:

in some embodiments, as shown in fig. 4 to 7, the screen body 2 comprises an upper connection assembly, a base pipe 21, a lower connection assembly, an upper header 22, a lower header 23 and a second cable stop assembly 24 which are sequentially connected by screw threads; the outer wall of the base pipe 21 is provided with an intermediate bracket 25, the outer wall of the intermediate bracket 25 is provided with a second groove for accommodating a cable, and the outside of the intermediate bracket 25 is provided with an intermediate water collecting pipe 26 and a second pressing plate 27 for fixing the cable; the base pipe 21 at two ends of the middle bracket 25 is sleeved with a filter sleeve 28, two ends of the filter sleeve 28 are connected with the base pipe 21 through end rings 29, an outer protective sleeve 210 is sleeved outside the filter sleeve 28, a cable groove 2101 is recessed in the outer wall of the outer protective sleeve 210, a second cavity 213 is formed between the outer protective sleeve 210 and the filter sleeve 28, a bypass conveying pipe 211 and a bypass filling pipe 212 are arranged in the second cavity 213, and a plurality of holes communicated with the second cavity 213 are formed in the upper connecting component and the lower connecting component; the upper water collecting pipe 22 is sleeved outside the upper connection assembly, the upper connection assembly is provided with an upper bracket 214, one end of the upper water collecting pipe 22 is connected with the upper connection assembly, and the other end of the upper water collecting pipe 22 is connected with the outer protective sleeve 210, the bypass conveying pipe 211, the bypass filling pipe 212 and the upper bracket 214; the lower water collecting pipe 23 is sleeved outside the lower connection assembly, the lower connection assembly is provided with a lower support 215, one end of the lower water collecting pipe 23 is connected with the lower connection assembly, and the other end of the lower water collecting pipe 23 is connected with the outer protective sleeve 210, the bypass conveying pipe 211, the bypass filling pipe 212 and the lower support 215; the outer walls of the upper water collecting pipe 22 and the lower water collecting pipe 23 are provided with second grooves for accommodating cables, and third pressing plates 216 for fixing the cables are installed on the upper water collecting pipe 22 and the lower water collecting pipe 23; the second cable limiting component 24 is sleeved on the lower connecting component, and a second slot 217 for inserting the screen pipe body 2 is formed between the second cable limiting component 24 and the lower connecting component.

The sieve tube body 2 is additionally provided with the multi-runner bypass filling tube 212 and the bypass conveying tube 211, so that the problem of incompact stratum filling due to sand bridge plugging in long horizontal section gravel filling operation can be effectively solved, and the sand prevention effect is improved.

The hole of the upper connecting component is a first through hole 131.

Wherein, the outer protective sleeve 210 is pressed with a cable groove 2101 suitable for a signal cable to pass through; the two ends of the bypass conveying pipe 211 and the bypass filling pipe 212 are respectively welded with the upper bracket 214 and the middle bracket 25; the upper bracket 214 is welded with the second upper joint 221 in the upper connection assembly, the middle bracket 25 is welded with the base pipe 21, two ends of the filter sleeve 28 are welded with the end ring 29, the end ring 29 is welded with the base pipe 21, and the middle water collecting pipe 26 is welded with the middle bracket 25.

Specifically, the upper bracket 214 and the middle bracket 25 are both annular and are provided with grooves for accommodating the bypass transportation pipe 211 and the bypass filling pipe 212, so as to ensure the stability of the bypass transportation pipe 211 and the bypass filling pipe 212.

In some embodiments, as shown in fig. 4, the second cable retention assembly 24 includes a second back cap 241 and a second snap ring 242; the second back-up cap 241 is sleeved at the end part, away from the lower connecting short section 224, of the second quick connector 225, and a fourth groove for accommodating a cable is formed in the outer wall of the second back-up cap 241; the second snap ring 242 is sleeved on the outer wall of the second back cap 241, and the second snap ring 242 is used for fixing a cable.

Specifically, the outer wall of the second back-tightening cap 241 is designed in a concave-convex claw shape, and is provided with a plurality of fourth grooves for accommodating cables, the cables penetrate through the fourth grooves to avoid the change of the phase of the cables when the second back-tightening cap 241 is screwed, and the second clamping ring 242 is sleeved on the second back-tightening cap 241 to form a limiting structure.

In summary, the sieve tube body 2 has four cable limiting structures, and the upper water collecting tube 22 and the lower water collecting tube 23 are fixed by the third pressing plate 216 to form two limiting structures; the middle bracket 25 is fixed by a second pressing plate 27 to form a limiting structure; the second back-tight cap 241 is fixed by a second snap ring 242 to form a limit structure.

Specifically, the third pressure plate 216 and the second pressure plate 27 are fixed by four set screws.

In some embodiments, the fixing surfaces of the third pressure plate 216 and the second pressure plate 27 are designed with pressing protrusions to ensure that the third pressure plate 216 and the second pressure plate 27 give a certain pressing force to the cable.

In some embodiments, as shown in FIG. 5, both base pipe 21 and outer protective casing 210 are perforated with third perforations 218, the third perforations 218 being the inflow passage of oil; as shown in fig. 6, the bypass filling pipe 212 and the bypass transportation pipe 211 are installed in the second cavity 213 through the upper bracket 214, the lower bracket 215 and the middle bracket 25, and the outer wall of the bypass filling pipe 212 is opened with a nozzle 2191 penetrating through the outer protection sleeve 210.

When the long flat section is filled, a sand bridge or blockage is easily formed in the shaft annulus, the filling effect of the rear part is further influenced, silt is doped in the produced oil, and then gravel slurry can flow into the bypass conveying pipe 211 and the bypass filling pipe 212 through the first through hole 131 or the nozzle 2191 on the outer wall of the connecting rod 13 under the pressure action, so that the blocked lower-layer annulus is further filled.

In some embodiments, as shown in fig. 4, the make-up assembly comprises a first quick coupling 219, a first upper sub 220, and a second upper sub 221 connected in series; the first quick connector 219 is provided with a third slot for matching with the top connector 1, and the third slot is used for inserting the bottom end of the connecting rod 13; the upper water collecting pipe 22 is sleeved outside the first upper short section 220 and the second upper joint 221, and the end part of the upper water collecting pipe 22 is connected with the first upper short section 220; the upper bracket 214 is mounted to the outside of the second upper joint 221; the end of second upper joint 221 facing away from first upper nipple 220 is connected to the top end of base pipe 21.

Specifically, the first quick connector 219 is connected to the first tightening cap 141 by a screw after being plugged into the connecting rod 13, and the multi-slot plugging can prevent the pipe string from rotating and causing the phase of the cable to change. As shown in fig. 4, the outer wall of the bottom of the first upper short section 220 is provided with a plurality of first elongated holes 2201, and the first elongated holes 2201 are communicated with the cavity of the upper water collecting pipe 22.

The first elongated hole 2201 may be two, three, four, five, six, etc. In at least one embodiment, the first elongated hole 2201 is six.

In some embodiments, as shown in fig. 7, the lower assembly includes a first lower sub 222, a second sealing plunger 223, a lower coupling sub 224, and a second quick sub 225; both ends of the first lower joint 222 are respectively connected with the bottom end of the base pipe 21 and the second sealing insert rod 223; the lower connecting short section 224 is in threaded connection with the outer wall of the bottom end of the first lower joint 222, a clamping groove used for being matched with the pressure gauge carrier 3 is formed in the end portion of the lower connecting short section 224, and the end portion of the lower water collecting pipe 23 is connected with the lower connecting short section 224; the lower water collecting pipe 23 is sleeved on the lower connecting short joint 224 and the first lower joint 222, and the lower bracket 215 is installed outside the first lower joint 222; the second quick connector 225 is inserted between the lower connection short section 224 and the second sealing insertion rod 223 and is in threaded connection with the lower connection short section 224, and the second cable limiting component 24 is sleeved at the end part of the second quick connector 225 departing from the lower connection short section 224.

Specifically, a third cavity 226 is formed among the second sealing inserted rod 223, the lower connection short section 224 and the second quick connector 225, and a plurality of second elongated holes 2241 communicated with the third cavity 226 are formed in the outer wall of the bottom of the lower connection short section 224 and used for gravel slurry to flow out of the bypass transportation pipe 211 and the bypass filling pipe 212.

The second elongated holes 2241 may be two, three, four, five, six, etc. In at least one embodiment, there are six second elongated holes 2241.

When the top joint 1 and the screen pipe body 2 are connected in place, the first sealing insert rod 12 is inserted into the inner pipe wall of the second upper joint 221, and then gravel slurry can flow into the first cavity 15 through the first through hole 131, enter the upper water collecting pipe 22 through the first strip hole 2201, enter the bypass conveying pipe 211 and the bypass filling pipe 212, enter the third cavity 226 through the second strip hole 2241, and further fill the lower oil layer well bore annulus for multiple times.

The structure of the manometer carrier 3 is specifically described below:

in some embodiments, as shown in fig. 8, in order to allow the pressure gauge to be stably mounted on the pressure gauge carrier 3, the pressure gauge carrier 3 includes: the first buckling part 31, the second buckling part 32, the locking part 33 and the limiting component; the first buckling part 31 is hinged with one end of the second buckling part 32, and the other end is locked by the locking part 33, so that the first buckling part 31 and the second buckling part 32 are buckled outside the second quick connector 225; the top of the first buckling part 31 is provided with a mounting groove 311 for mounting the pressure gauge, and the limiting component is connected with the first buckling part 31 to limit the position of the pressure gauge relative to the mounting groove 311.

Specifically, first buckling parts 31 and second buckling parts 32 are hinged through a pin shaft, and one ends of first buckling parts 31 and second buckling parts 32 are designed into a slot structure matched with lower connection short section 224, so that the change of cable phases caused by rotation of pressure gauge carrier 3 can be effectively avoided.

Specifically, as shown in fig. 9, the limiting assembly includes a first screw 34, a second screw 35 and a tightening cap 36, the first screw 34 and the second screw 35 are mounted on the first buckling portion 31, and the tightening cap 36 is mounted in the mounting groove 311 of the first buckling portion 31.

The pressure gauge accessible pressure gauge carrier 3 successfully couples in screen pipe body 2 bottom, and above-mentioned pressure gauge carrier 3 commonality design is strong, puts the pressure timing of different models forever as needs, only need change on the first buckling parts 31 mounting groove 311 design can.

When using, pressure gauge one end is tight with the tight cap 36 top in top, and tight cap 36 restriction pressure gauge length direction degree of freedom in top, and the pressure gauge both sides are tight with first screw 34 top, can restrict pressure gauge width direction degree of freedom, and it can to fix with second screw 35 after the cable grafting.

The structure of the bottom joint 4 will be specifically described below:

in some embodiments, as shown in fig. 10, the bottom sub 4 comprises a third quick coupling 41, a second upper short coupling 42 and a second lower coupling 43 which are connected in turn by threads; the third quick coupling 41 is connected with the screen pipe body 2; the end of the second lower sub 43 facing away from the third quick connector 41 has external threads for connection to other tubular string tools.

Specifically, during installation, the third quick coupling 41 is first matched with the multiple slots of the second quick coupling 225, then is in threaded connection with the second back-tightening cap 241, and finally the inner wall of the second lower coupling 43 is connected with the second sealing insert rod 223 at the bottom end of the screen pipe body 2.

The third cavity 226 extends to the space between the third quick coupling 41, the second upper short section 42 and the second sealing insertion rod 223, gravel slurry in the bypass transport pipe 211 and the bypass filling pipe 212 can flow through the third cavity 226 and flow out through a third long hole 421 in the outer wall of the second upper short section 42 in the bottom coupling 4, and the third long hole 421 is a hole in the lower coupling assembly, which is communicated with the second cavity 213. In completion sand control operations, whether a single or multiple screen bodies 2 are used, the bottom sub 4 is always connected to the last screen body 2 and the second bottom sub 43 is used to connect to the bottom other service string.

In summary, the cable-passing bypass screen assembly in the above embodiments has the following advantages:

1. the top joint 1 and the bottom joint 4 are respectively connected with the top and the bottom of the sieve tube body 2, so that the sieve tube body 2 can be conveniently and quickly connected, the sieve tube body 2 can be conveniently connected with other tubular columns, and the difficulty in connecting the upper tubular column and the lower tubular column caused by the influences of non-concentricity of the tubular columns, over-heavy length of the sieve tube body 2 and the like is avoided;

2. the multi-runner bypass filling pipe 212 and the bypass conveying pipe 211 are additionally arranged on the sieve tube body 2, so that the problem of incompact stratum filling caused by sand bridge blockage in long horizontal section gravel filling operation can be effectively solved, and the sand prevention effect is improved.

3. The pressure gauge is successfully coupled to the bottom of the screen pipe body 2 through the pressure gauge carrier 3, the pressure gauge carrier 3 is high in universality design, when pressure timepieces of different models need to be permanently arranged, only the design of the mounting groove 311 on the first buckling part 31 needs to be changed, and one end of the pressure gauge carrier 3 is of a slot type structure, so that the change of a cable phase caused by rotation of the pressure gauge carrier can be effectively avoided;

4. the sieve tube body 2 and the top connector 1 are designed with 5 cable limiting structures together, so that the stability of the cable is ensured;

5. the top joint 1 and the bottom joint 4 are respectively connected with the sieve tube body 2 by adopting a slot structure, so that the consistency of phases among a plurality of tubular columns can be ensured, and the consistency of cable phases is further ensured;

6. the outer walls of the first back-fastening cap 141 and the second back-fastening cap 241 are designed with a plurality of grooves for accommodating cables, so that the change of the phase of the cables in the process of fastening is avoided.

7. The outer protective sleeve 210 is provided with a cable trough 2101 for placing a cable and ensuring the stability of the cable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. A cable-passing bypass screen pipe assembly is characterized by comprising a top joint (1), a screen pipe body (2), a pressure gauge carrier (3) and a bottom joint (4);

two ends of the sieve tube body (2) are respectively connected with the top joint (1) and the bottom joint (4), and the top joint (1) and the sieve tube body (2) are provided with a plurality of limiting structures for limiting the position of a cable;

the pressure gauge carrier (3) is arranged outside the sieve tube body (2);

the top connector (1) comprises a first upper connector (11), a first sealing inserted rod (12), a connecting rod (13) and a first cable limiting assembly (14);

the first sealing inserted rod (12) and the connecting rod (13) are both connected with the bottom of the first upper joint (11);

the connecting rod (13) is sleeved outside the first sealing inserted rod (12), a first cavity (15) is formed between the connecting rod and the first sealing inserted rod (12), and a plurality of first through holes (131) communicated with the first cavity (15) are formed in the outer wall of the connecting rod (13);

the first cable limiting component (14) is sleeved at the end part, deviating from the first upper joint (11), of the connecting rod (13), and a first inserting groove (16) for inserting the sieve tube body (2) is formed among the first cable limiting component (14), the connecting rod (13) and the first sealing inserting rod (12);

the sieve tube body (2) comprises an upper connecting assembly, a base tube (21), a lower connecting assembly, an upper water collecting pipe (22), a lower water collecting pipe (23) and a second cable limiting assembly (24) which are sequentially connected through threads;

an intermediate bracket (25) is arranged on the outer wall of the base pipe (21), a second groove for accommodating a cable is formed in the outer wall of the intermediate bracket (25), and an intermediate water collecting pipe (26) and a second pressing plate (27) for fixing the cable are arranged outside the intermediate bracket (25);

the base pipe (21) at two ends of the middle support (25) is sleeved with a filter sleeve (28), two ends of the filter sleeve (28) are connected with the base pipe (21) through end rings (29), an outer protective sleeve (210) is sleeved outside the filter sleeve (28), a cable groove (2101) is formed in the outer wall of the outer protective sleeve (210) in an inwards concave mode, a second cavity (213) is formed between the outer protective sleeve (210) and the filter sleeve (28), a bypass conveying pipe (211) and a bypass filling pipe (212) are arranged in the second cavity (213), and a plurality of holes communicated with the second cavity (213) are formed in the upper connecting assembly and the lower connecting assembly;

the upper water collecting pipe (22) is sleeved outside the upper connecting assembly, the upper connecting assembly is provided with an upper support (214), one end of the upper water collecting pipe (22) is connected with the upper connecting assembly, and the other end of the upper water collecting pipe is connected with the outer protective sleeve (210), the bypass conveying pipe (211), the bypass filling pipe (212) and the upper support (214);

the lower water collecting pipe (23) is sleeved outside the lower connection assembly, the lower connection assembly is provided with a lower support (215), one end of the lower water collecting pipe (23) is connected with the lower connection assembly, and the other end of the lower water collecting pipe is connected with the outer protective sleeve (210), the bypass conveying pipe (211), the bypass filling pipe (212) and the lower support (215);

the outer walls of the upper water collecting pipe (22) and the lower water collecting pipe (23) are provided with second grooves for accommodating cables, and a third pressing plate (216) for fixing the cables is arranged on the upper water collecting pipe (22) and the lower water collecting pipe (23);

the second cable limiting component (24) is sleeved on the lower connection component, and a second slot (217) used for inserting the sieve tube body (2) is formed between the second cable limiting component (24) and the lower connection component.

2. The cable-thru bypass screen assembly according to claim 1, wherein the first cable retention assembly (14) comprises a first back-up cap (141) and a first snap ring (142);

the first back fastening cap (141) is sleeved at the end part, away from the first upper joint (11), of the connecting rod (13), and a first groove for accommodating a cable is formed in the outer wall of the first back fastening cap (141);

the first clamping ring (142) is sleeved on the outer wall of the first tightening cap (141), and the first clamping ring (142) is used for fixing the cable.

3. The cable-passing bypass screen assembly according to claim 1, wherein the base pipe (21) and the outer protective sleeve (210) are each provided with a third through hole (218);

the bypass filling pipe (212) and the bypass conveying pipe (211) are arranged in the second cavity (213) through the upper support (214), the lower support (215) and the middle support (25), and a nozzle (2191) penetrating through the outer protective sleeve (210) is formed in the outer wall of the bypass filling pipe (212).

4. The cable-passing bypass screen assembly according to claim 1, wherein the fixing surfaces of the third pressure plate (216) and the second pressure plate (27) are designed with pressing protrusions.

5. The cable-pass bypass screen assembly according to claim 1, wherein the upper joint assembly comprises a first quick coupling (219), a first upper sub (220), and a second upper coupling (221) connected in series;

the first quick connector (219) is provided with a third slot used for being matched with the top connector (1);

the upper water collecting pipe (22) is sleeved outside the first upper short section (220) and the second upper joint (221), and the end part of the upper water collecting pipe (22) is connected with the first upper short section (220);

the upper bracket (214) is mounted outside the second upper joint (221);

one end of the second upper joint (221), which is far away from the first upper short joint (220), is connected with the top end of the base pipe (21).

6. The cable-pass bypass screen assembly according to claim 1, wherein the lower joint assembly comprises a first lower joint (222), a second sealing bayonet (223), a lower joint sub (224), and a second quick-connect joint (225);

the two ends of the first lower joint (222) are respectively connected with the bottom end of the base pipe (21) and the second sealing inserted rod (223);

the lower connecting short section (224) is in threaded connection with the outer wall of the bottom end of the first lower joint (222), a clamping groove used for being matched with the pressure gauge carrier (3) is formed in the end portion of the lower connecting short section (224), and the end portion of the lower water collecting pipe (23) is connected with the lower connecting short section (224);

the lower water collecting pipe (23) is sleeved on the lower connecting short joint (224) and the first lower joint (222), and the lower bracket (215) is arranged outside the first lower joint (222);

the second quick connector (225) is inserted between the lower connecting short section (224) and the second sealing insertion rod (223) and is in threaded connection with the lower connecting short section (224), and the second cable limiting assembly (24) is sleeved on the end part, deviating from the lower connecting short section (224), of the second quick connector (225).

7. The cable-passing bypass screen assembly according to claim 6, wherein the manometer carrier (3) comprises: the first buckling part (31), the second buckling part (32), the locking part (33) and the limiting component;

the first buckling part (31) is hinged with one end of the second buckling part (32), and the other end of the first buckling part is locked by the locking part (33), so that the first buckling part (31) and the second buckling part (32) are buckled outside the second quick connector (225);

the top of the first buckling part (31) is provided with a mounting groove (311) for mounting a pressure gauge, and the limiting component is connected with the first buckling part (31) to limit the position of the pressure gauge relative to the mounting groove (311).

8. The cable-pass bypass screen assembly according to claim 1, wherein the bottom sub (4) comprises a third quick coupling (41), a second upper short coupling (42) and a second lower coupling (43) which are sequentially screwed;

the third quick coupling (41) is connected with the screen pipe body (2);

the end of the second lower joint (43) facing away from the third quick joint (41) is provided with an external thread.

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