Horizontal well butt joint gun

Abstract

The utility model discloses a horizontal well butt joint gun which comprises a cable torpedo, and one end of a cable is embedded in the cable torpedo. The device further comprises a quick connector, the other end of the cable is embedded into the quick connector, the end, away from the cable torpedo, of the quick connector is fixedly connected with one end of a linking device through a loose pulley, and the other end of the linking device is sleeved with a female gun assembly. According to the horizontal well butt joint gun, the mother gun assembly and the cable can be rapidly separated, field personnel can rapidly judge faults and conduct overhauling conveniently, and meanwhile the disassembly time, the repair time and the maintenance time can be shortened; the interior of the sleeve is thickened, a cable weakness assembly is removed, a loose pulley connecting part is sealed by adopting a high-voltage contact pin, and a shell of the sleeve is not provided with a jackscrew, so that the production cost consumption is directly reduced; after the horizontal well butt joint gun is used, the horizontal well butt joint gun can be disassembled and cleaned on site, problems can be rapidly judged and found, and the maintenance time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of well logging equipment and relates to a horizontal well butt joint gun. Background Art

[0002] The docking gun is one of the important tools for horizontal well logging operations. The docking gun is connected to the head of the logging cable. When in use, it is placed in the water hole of the construction drill bit, and after being lowered into the well, it is docked with the wet joint male head connected to the drill bit head to complete the power supply and signal transmission between the logging surface system and the downhole instrument string. The original docking gun consists of a cable weak point device and a female gun assembly.

[0003] At present, in order to protect the logging cable during horizontal well logging operations, it is stipulated that the horizontal well bypass short-section tool cannot be out of the casing. For horizontal wells with shallow depth under the casing and long measuring well section, segmented docking construction is required to complete the entire horizontal well logging operation. In order to reduce the on-site construction time (the production of the mother gun takes two to three hours), the docking gun is usually designed as an inverted connection method, that is, a three-meter-long logging cable is connected to the mother gun assembly through the weak point assembly, and then the cable mother connector is made on the cable head to achieve quick connection with the logging cable head. Although the inverted docking gun provides convenience for on-site construction, However, maintenance and inspection are rather cumbersome, which makes it difficult to locate and judge when insulation or continuity failure occurs in the docking gun. If a problem occurs, the cable torpedo, inverted cable, and mother gun weakness device on the inverted docking gun must be removed and the problem must be gradually eliminated. After the problem is eliminated, it is easy to have poor release or wire breakage during installation, resulting in excessively long maintenance time. According to statistics, it takes two people four to five hours to repair a mother gun assembly, and the cable weakness device must be replaced every two times the docking gun is used, resulting in increased production costs. Therefore, it is necessary to further improve the inverted docking gun. Utility Model Content

[0004] The utility model aims to provide a horizontal well butt joint gun, which solves the problem in the prior art that the butt joint gun requires too long maintenance and inspection time.

[0005] The technical solution adopted by the utility model is that the horizontal well docking gun includes a cable torpedo, one end of the cable is embedded in the cable torpedo; and a quick connector, the other end of the cable is embedded in the quick connector, the end of the quick connector away from the cable torpedo is fixedly connected to one end of a linking device through a cruise ship, and the other end of the linking device is sleeved with a mother gun assembly.

[0006] The utility model horizontal well connection gun is also characterized by:

[0007] The length of the cable between the cable torpedo and the quick connector is 25cm-35cm.

[0008] A guide cap is provided on the cable between the cable torpedo and the quick connector, and the guide cap is connected to the quick connector.

[0009] The cable torpedo includes a torpedo tube, which has a first cavity inside. A conical torpedo head is fixed at one end of the torpedo tube, and a three-cone sleeve is provided near the other end of the torpedo tube, and one end of the three-cone sleeve is connected to the first cavity. The cable passes through the conical torpedo head and extends into the torpedo tube. A flexible device connected to the cable is provided in the torpedo tube, and one end of the flexible device is connected to the first cavity.

[0010] A plurality of first grease injection holes connected with the three-cone sleeve are opened on the wall of the torpedo tube, and bolts are fixed in the first grease injection holes.

[0011] The quick connector includes a connector tube, one end of which is connected to the guide cap, and the other end of the connector tube is fixedly connected to the cruise ship. A flexible short section is provided in the connector tube near the guide cap, and a second cavity is provided on one side of the flexible short section in the connector tube. One end of the cable is fixedly connected to the flexible short section, and one end of the cruise ship extends into the second cavity.

[0012] A second grease injection hole connected with the flexible short section is opened on the wall of the joint tube, and a bolt is fixed in the second grease injection hole.

[0013] A third grease injection hole communicated with the second cavity is opened on the wall of the joint cylinder, and a bolt is fixed in the third grease injection hole.

[0014] A fourth grease injection hole connected with the cruise ship is opened on the wall of the joint cylinder, and a bolt is fixed in the fourth grease injection hole.

[0015] The linking device includes a sleeve, one end of which is fixedly connected to the cruise ship. A weighting rod with one end fixedly connected to the cruise ship is provided in the sleeve, and the other end of the weighting rod is fixedly connected to one end of the connecting tube. The mother gun assembly is sleeved on one end of the sleeve and the mother gun assembly is connected to the connecting tube.

[0016] The beneficial effects of the utility model are:

[0017] Compared with the existing technology, the horizontal well docking gun of the utility model can realize the rapid separation of the mother gun assembly and the cable, which is convenient for on-site personnel to quickly judge the fault and carry out maintenance, and at the same time reduces the disassembly, repair and maintenance time; the inside of the sleeve is thickened, the weak point assembly of the cable is removed, the cruise ship connection part is sealed with a high-pressure pin, and the outer shell of the sleeve has no top screw, which directly reduces the production cost consumption; the horizontal well docking gun can be disassembled and cleaned on site after use, which can quickly judge and find problems and shorten the maintenance and maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the horizontal well docking gun of the utility model;

[0019] Figure 2 This is a diagram showing the connection structure of the link device and the quick connector in the horizontal well docking gun of the utility model;

[0020] Figure 3 It is a structural diagram of a cable weakness device in the prior art.

[0021] In the figure, 1. Cable torpedo, 11. Torpedo tube, 12. Conical torpedo head, 13. Flexible device, 14. First grease injection hole, 15. Three-cone sleeve, 16. First cavity, 2. Quick connector, 21. Connector tube, 22. Second grease injection hole, 23. Flexible short section, 24. Second cavity, 25. Third grease injection hole, 26. Fourth grease injection hole, 3. Mother gun assembly, 4. Linking device, 41. Sleeve, 42. Weight rod, 43. Connecting tube, 5. Cable, 6. Cruise ship, 7. Guide cap, 8. Cable weak point device. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Horizontal well docking gun, refer to Figure 1 It includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; it also includes a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, the connection part of the cruise ship 6 is sealed with a high-pressure pin, and the other end of the link device 4 is sleeved with a mother gun assembly 3.

[0024] The length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 25cm-35cm. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The setting of the guide cap 7 facilitates the connection between the quick connector 2 and the cable 5.

[0025] The cable torpedo 1 includes a torpedo tube 11, which has a first cavity 16 inside. A conical torpedo head 12 is fixed to one end of the torpedo tube 11. A three-cone sleeve 15 is provided near the other end of the torpedo tube 11, and one end of the three-cone sleeve 15 is connected to the first cavity 16. The cable 5 passes through the conical torpedo head 12 and extends into the torpedo tube 11. A flexible device 13 connected to the cable 5 is provided in the torpedo tube 11, and one end of the flexible device 13 is connected to the first cavity 16. A plurality of first grease injection holes 14 connected to the three-cone sleeve 15 are opened on the wall of the torpedo tube 11, and bolts are fixed in the first grease injection holes 14.

[0026] Reference Figure 2The quick connector 2 includes a connector tube 21, one end of which is connected to the guide cap 7, and the other end of the connector tube 21 is fixedly connected to the cruise ship 6. A flexible short section 23 is provided in the connector tube 21 near the guide cap 7, and a second cavity 24 is provided on one side of the flexible short section 23 in the connector tube 21. One end of the cable 5 is fixedly connected to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24; a second grease injection hole 22 connected to the flexible short section 23 is provided on the wall of the connector tube 21, and a bolt is fixed in the second grease injection hole 22; a third grease injection hole 25 connected to the second cavity 24 is provided on the wall of the connector tube 21, and a bolt is fixed in the third grease injection hole 25; a fourth grease injection hole 26 connected to the cruise ship 6 is provided on the wall of the connector tube 21, and a bolt is fixed in the fourth grease injection hole 26.

[0027] The linking device 4 includes a sleeve 41, the interior of the sleeve 41 is thickened, one end of the sleeve 41 is fixed to the cruise ship 6, a weighting rod 42 is provided in the sleeve 41, one end of which is fixed to the cruise ship 6, and the other end of the weighting rod 42 is fixed to one end of the connecting tube 43, the mother gun assembly 3 is sleeved on one end of the sleeve 41 and the mother gun assembly 3 is connected to the connecting tube 43.

[0028] The utility model is easy to install and disassemble, which can reduce the time of disassembly and maintenance. The installation method is as follows:

[0029] Step 1: Disassemble the cable weakness device on the conventional upside-down docking gun, connect one end of the sleeve 41 to the mother gun assembly 3, and thicken the inside of the sleeve 41;

[0030] Step 2: Insert one end of the cable 5 into the cable torpedo 1 and fix it on the flexible device 13, leaving 25cm-35cm outside. Then pass the other end through the guide cap 7 and fix it in the flexible short section 23;

[0031] Step 3: Hard-connect the quick connector 2 and the connecting device 4 through the cruise ship 6, use high-pressure pin sealing treatment on the connecting part of the cruise ship 6, and install the weight rod 42;

[0032] Step 4: Grease the torpedo tube 11 and the joint tube 21, and then tighten the bolts.

[0033] The disassembly method is:

[0034] Step a: Remove the bolts in the torpedo tube 11 and the connector tube 21;

[0035] Step b: disassembling the cruise ship 6 and the weighting rod 42;

[0036] Step c: Separate the two ends of the cable 5 from the flexible device 13 and the flexible short section 23 respectively;

[0037] Step d: Separate the sleeve 41 from the mother gun assembly 3.

[0038] Example 1:

[0039] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; and a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3. The length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 25 cm. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The cable torpedo 1 includes a torpedo Tube 11, a first cavity 16 is provided inside the torpedo tube 11, a conical torpedo head 12 is fixed at one end of the torpedo tube 11, a three-cone sleeve 15 is provided near the other end of the torpedo tube 11, and one end of the three-cone sleeve 15 is connected to the first cavity 16, the cable 5 passes through the conical torpedo head 12 and extends into the torpedo tube 11, a flexible device 13 connected to the cable 5 is provided in the torpedo tube 11, one end of the flexible device 13 is connected to the first cavity 16, four first grease injection holes 14 connected to the three-cone sleeve 15 are opened on the wall of the torpedo tube 11, and bolts are fixed in the first grease injection holes 14.

[0040] Example 2:

[0041] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3, the length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 30 cm, and a guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The connector 2 is connected, and the quick connector 2 includes a connector tube 21. One end of the connector tube 21 is connected to the guide cap 7, and the other end of the connector tube 21 is fixedly connected to the cruise ship 6. A flexible short section 23 is provided in the connector tube 21 near the guide cap 7. A second cavity 24 is provided on one side of the flexible short section 23 in the connector tube 21. One end of the cable 5 is fixedly connected to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24. A second grease injection hole 22 connected to the flexible short section 23 is opened on the wall of the connector tube 21, and a bolt is fixed in the second grease injection hole 22.

[0042] Example 3:

[0043] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; and a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3. The length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 35 cm. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The cable torpedo 1 includes a torpedo barrel 11, a first cavity 16 is provided inside the torpedo barrel 11, a conical torpedo head 12 is fixed to one end of the torpedo barrel 11, and a three-cone sleeve 15 is provided near the other end of the torpedo barrel 11. One end of the three-cone sleeve 15 is connected to the first cavity 16, the cable 5 passes through the conical torpedo head 12 and extends into the torpedo tube 11, and a flexible device 13 connected to the cable 5 is provided in the torpedo tube 11. One end of the flexible device 13 is connected to the first cavity 16, and the quick connector 2 includes a joint tube 21, one end of the joint tube 21 is connected to the guide cap 7, and the other end of the joint tube 21 is fixedly connected to the cruise ship 6. A flexible short section 23 is provided in the joint tube 21 near the guide cap 7, and a second cavity 24 is provided on one side of the flexible short section 23 in the joint tube 21. One end of the cable 5 is fixedly connected to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24. A third grease injection hole 25 connected to the second cavity 24 is provided on the wall of the joint tube 21, and a bolt is fixed in the third grease injection hole 25.

[0044] Example 4:

[0045] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3. The length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 28 cm. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. Three holes are provided on the wall of the torpedo tube 11. The first grease injection hole 14 is connected to the three-cone sleeve 15, and a bolt is fixed in the first grease injection hole 14. The quick connector 2 includes a connector tube 21, one end of the connector tube 21 is connected to the guide cap 7, and the other end of the connector tube 21 is fixed to the cruise ship 6. A flexible short section 23 is provided in the connector tube 21 near the guide cap 7, and a second cavity 24 is provided on one side of the flexible short section 23 in the connector tube 21. One end of the cable 5 is fixed to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24. A fourth grease injection hole 26 connected to the cruise ship 6 is provided on the wall of the connector tube 21, and a bolt is fixed in the fourth grease injection hole 26.

[0046] Example 5:

[0047] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; a quick connector 2 is also included, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The quick connector 2 includes a connector tube 21, one end of the connector tube 21 is connected to the guide cap 7, and the other end of the connector tube 21 is connected to the guide cap 7. One end is fixedly connected to the cruise ship 6, and a flexible short section 23 is provided in the connector tube 21 near the guide cap 7. A second cavity 24 is provided on one side of the flexible short section 23 in the connector tube 21. One end of the cable 5 is fixedly connected to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24. The linking device 4 includes a sleeve 41, one end of the sleeve 41 is fixedly connected to the cruise ship 6, and a weighting rod 42 with one end fixed to the cruise ship 6 is provided in the sleeve 41. The other end of the weighting rod 42 is fixedly connected to one end of the connecting tube 43. The mother gun assembly 3 is sleeved on one end of the sleeve 41 and the mother gun assembly 3 is connected to the connecting tube 43.

[0048] Example 6:

[0049] The horizontal well docking gun includes a cable torpedo 1, one end of a cable 5 is embedded in the cable torpedo 1; and a quick connector 2, the other end of the cable 5 is embedded in the quick connector 2, the end of the quick connector 2 away from the cable torpedo 1 is fixedly connected to one end of a link device 4 through a cruise ship 6, and the other end of the link device 4 is sleeved with a mother gun assembly 3. The length of the cable 5 between the cable torpedo 1 and the quick connector 2 is 32 cm. A guide cap 7 is provided on the cable 5 between the cable torpedo 1 and the quick connector 2, and the guide cap 7 is connected to the quick connector 2. The quick connector 2 includes a connector barrel 21, one end of the connector barrel 21 is connected to the guide cap 7, and the other end of the connector barrel 21 is fixedly connected to the cruise ship 6. A flexible short section 23 is provided in the connector tube 21 near the guide cap 7, and a second cavity 24 is provided on one side of the flexible short section 23 in the connector tube 21. One end of the cable 5 is fixedly connected to the flexible short section 23, and one end of the cruise ship 6 extends into the second cavity 24. A third grease injection hole 25 connected to the second cavity 24 is provided on the wall of the connector tube 21, and a bolt is fixed in the third grease injection hole 25. The linking device 4 includes a sleeve 41, one end of the sleeve 41 is fixedly connected to the cruise ship 6, and a weighting rod 42 with one end fixed to the cruise ship 6 is provided in the sleeve 41, and the other end of the weighting rod 42 is fixedly connected to one end of the connecting tube 43. The mother gun assembly 3 is sleeved on one end of the sleeve 41 and the mother gun assembly 3 is connected to the connecting tube 43.

Claims

1. Horizontal well docking gun, characterized in that, The invention comprises a cable torpedo (1), wherein one end of a cable (5) is embedded in the cable torpedo (1); and a quick connector (2), wherein the other end of the cable (5) is embedded in the quick connector (2), and the end of the quick connector (2) away from the cable torpedo (1) is fixedly connected to one end of a linking device (4) through a cruise ship (6), and the other end of the linking device (4) is sleeved with a mother gun assembly (3).

2. The horizontal well connection gun according to claim 1, characterized in that: The length of the cable (5) between the cable torpedo (1) and the quick connector (2) is 25 cm to 35 cm.

3. The horizontal well connection gun according to claim 1, characterized in that: A guide cap (7) is provided on the cable (5) at a position between the cable torpedo (1) and the quick connector (2), and the guide cap (7) is connected to the quick connector (2).

4. The horizontal well connection gun according to any one of claims 1 to 3, characterized in that: The cable torpedo (1) includes a torpedo tube (11), a first cavity (16) is provided inside the torpedo tube (11), a conical torpedo head (12) is fixed at one end of the torpedo tube (11), a three-cone sleeve (15) is provided near the other end of the torpedo tube (11), and one end of the three-cone sleeve (15) is communicated with the first cavity (16), a cable (5) passes through the conical torpedo head (12) and extends into the torpedo tube (11), a flexible device (13) connected to the cable (5) is provided in the torpedo tube (11), and one end of the flexible device (13) is communicated with the first cavity (16).

5. The horizontal well connection gun according to claim 4, characterized in that: A plurality of first grease injection holes (14) communicating with the three-cone sleeve (15) are provided on the wall of the torpedo tube (11), and bolts are fixed in the first grease injection holes (14).

6. The horizontal well connection gun according to claim 3, characterized in that: The quick connector (2) includes a connector tube (21), one end of the connector tube (21) is connected to the guide cap (7), and the other end of the connector tube (21) is fixedly connected to the cruise ship (6). A flexible short section (23) is provided in the connector tube (21) near the guide cap (7). A second cavity (24) is provided on one side of the flexible short section (23) in the connector tube (21). One end of the cable (5) is fixedly connected to the flexible short section (23), and one end of the cruise ship (6) extends into the second cavity (24).

7. The horizontal well connection gun according to claim 6, characterized in that: A second grease injection hole (22) communicating with the flexible short section (23) is provided on the wall of the joint tube (21), and a bolt is fixed in the second grease injection hole (22).

8. The horizontal well connection gun according to claim 6, characterized in that: A third grease injection hole (25) communicating with the second cavity (24) is provided on the wall of the joint tube (21), and a bolt is fixed in the third grease injection hole (25).

9. The horizontal well connection gun according to claim 6, characterized in that: A fourth grease injection hole (26) communicating with the cruise ship (6) is provided on the wall of the joint tube (21), and a bolt is fixed in the fourth grease injection hole (26).

10. The horizontal well connection gun according to claim 6, characterized in that: The linking device (4) includes a sleeve (41), one end of the sleeve (41) is fixedly connected to the cruise ship (6), a weighting rod (42) is provided in the sleeve (41), one end of the weighting rod (42) is fixedly connected to the cruise ship (6), the other end of the weighting rod (42) is fixedly connected to one end of the connecting tube (43), the mother gun assembly (3) is sleeved on one end of the sleeve (41), and the mother gun assembly (3) is connected to the connecting tube (43).

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