Well testing stop fork
Technical Field
The invention relates to the technical field of well testing construction tools, in particular to a well testing stop fork.
Background
The well testing stop fork is a well testing tool and is used in the well testing construction of petroleum and natural gas. In the field construction process of a well test, the pressure of a well head is high, the gas production is high, a long and heavy instrument string is required to be put into the well, a pulley is hung right above a blowout prevention pipe orifice at a proper height on the site, a steel wire is wound into a pulley groove, a winch post is used for manually cranking the winch, the tail cone of the instrument string connected to the tail end of the winch steel wire is shaken to the blowout prevention pipe orifice, then the instrument string is slowly put into the blowout prevention pipe to the upper side of a test valve, the method is directly hoisted into the blowout prevention pipe, a crane hook is difficult to align the blowout prevention pipe orifice, the included angle between a pulley hanging point and the winch is large, the operation is inconvenient, the safety risk exists, and the development of the well test process is severely restricted.
Therefore, the movable well testing retaining fork is urgently needed to be developed for loading, taking out and clamping instrument strings, the labor intensity is reduced, and the well testing production safety is guaranteed. When the instrument string is lifted and lowered in the well testing construction, the fork opening of the stop fork is inserted into the flat square of the instrument string, and then the instrument string can be suspended at the blowout prevention pipe opening; when the instrument string is hoisted, the flat square at the upper end of the instrument string below the rope cap is clamped, and the instrument string is suspended at the blowout prevention pipe opening, so that the hoisting device is convenient to install.
Chinese patent publication No. CN 202325327U, published 2012/07/11 discloses a loose-leaf type stop fork for a well testing instrument string, which is characterized in that: the novel fork comprises a main fork, an auxiliary fork and a pin, wherein the opening of the main fork is large, the opening of the auxiliary fork is small, the auxiliary fork is connected and covered on the main fork through a loose-leaf type, and the opening directions of the auxiliary fork and the main fork are consistent.
The loose-leaf type blocking fork of the well testing instrument string disclosed in the patent document can block the segmented instrument string at the orifice of the blowout pipe, support the weight of the instrument string and play a buffering role, and reduce the labor intensity. However, the size of the opening cannot be adjusted, and only a test well instrument with a specific size can be serially clamped at the blowout prevention pipe orifice, so that the use is single, and the flexibility is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the well testing stop fork which is simple in structure, reasonable in design, capable of conveniently and flexibly clamping well testing instruments of various sizes at the blowout prevention pipe orifice, strong in flexibility and capable of greatly reducing the labor intensity.
The invention is realized by the following technical scheme:
the utility model provides a well testing stop fork, includes the body, its characterized in that: still include rotation axis, first movable block and second movable block, the body is "Y" font, and the body includes the installation section and grips the section, the first fixing base of fixedly connected with and second fixing base on the installation section, the rotation axis is the cylinder, and the rotation axis passes through threaded connection with first fixing base and second fixing base, and the rotation axis includes normal thread section, first optical axis section, annular knurl section, second optical axis section and backstitch section in proper order, the annular knurl section is located between first optical axis section and the second optical axis section, the rotation axis runs through first fixing base and second fixing base, normal thread section passes through threaded connection with first movable block, the backstitch section passes through threaded connection with the second movable block.
The first movable block is fixed with a first sliding block, the second movable block is fixed with a second sliding block, the installation section is provided with a sliding groove, the sliding groove is located above the first fixing seat and the second fixing seat, the first movable block is connected with the installation section in a sliding mode through the first sliding block, and the second movable block is connected with the installation section in a sliding mode through the second sliding block.
The end part of the regular thread section is fixedly connected with a first limiting screw, and the end part of the reverse thread section is fixedly connected with a second limiting screw.
Two first fastening screws are arranged on the first fixing seat, and the first fixing seat is fixed on the mounting section of the body through the first fastening screws.
And the second fixing seat is provided with two second fastening screws, and the second fixing seat is fixed on the mounting section of the body through the second fastening screws.
The end part of the holding section is provided with a through hole.
The working principle of the invention is as follows:
based on the principle that the coaxial two-end positive and negative external threads are arranged, the opening is rotated clockwise to contract towards the center, and the opening is rotated anticlockwise to leave the center and expand towards the two ends.
Before well testing, a first fixed seat and a second fixed seat are respectively penetrated from the left end and the right end of a rotating shaft, a normal thread section of the rotating shaft faces to the left so that the bottom surface of the first fixed seat is attached to the front surface of a body, a reverse thread section of the rotating shaft faces to the right so that the bottom surface of the second fixed seat is attached to the front surface of the body, and the first fixed seat and the second fixed seat are fixed on the body through fastening screws; sliding a first sliding block on the first movable block and a second sliding block on the second movable block into the sliding groove of the body from the left end and the right end of the sliding groove of the body respectively to enable the first sliding block and the second sliding block to be in threaded contact with the rotating shaft, rotating the rotating shaft anticlockwise, and enabling the first movable block and the second movable block to move towards the center simultaneously under the guiding and restraining of the sliding groove until the external threads on the rotating shaft are fully meshed with the internal threads of the first movable block and the second movable block; the limiting screws are respectively screwed into the inner thread holes at the two ends of the rotating shaft and tightened to play a limiting role, then the rotating shaft is rotated to adjust the opening of the blocking fork according to the size of the flat square of the field instrument string, and the purpose of flexibly adjusting the size of the opening of the movable well testing blocking fork is achieved.
The test well test adopts the manpower to divide into a plurality of quick connect sections with longer heavier instrument cluster, or adopts mechanical integral hoisting mode, inserts the flat side of instrument cluster with the jaw of movable test well fender fork, hangs in the blowout prevention mouth of pipe, puts into the instrument cluster and takes out the blowout prevention pipe, has standardized steel wire test well operation like this for at high pressure, high yield well test well operation, operation safe and reliable more.
The beneficial effects of the invention are mainly shown in the following aspects:
firstly, the invention is characterized in that the body is Y-shaped, the body comprises an installation section and a holding section, a first fixed seat and a second fixed seat are fixedly connected on the installation section, the rotating shaft is a cylinder, the rotating shaft sequentially comprises a regular thread section, a first optical axis section, a knurling section, a second optical axis section and a reverse thread section, the knurling section is positioned between the first optical axis section and the second optical axis section, the rotating shaft penetrates through the first fixed seat and the second fixed seat, the regular thread section is in threaded connection with the first movable block, the reverse thread section is in threaded connection with the second movable block, when in use, the rotating shaft is rotated anticlockwise, the first movable block and the second movable block can be moved towards the center simultaneously, the opening of the stop fork can be adjusted by rotating the rotating shaft according to the size of the flat side of a field instrument string, the flexible adjustment of the size of the opening of the movable well testing stop fork is realized, compared with the prior art, the structure is simple, reasonable in design, can be convenient nimble with various sizes well testing instrument cluster card at the blowout prevention mouth of pipe, the flexibility is strong, reduction intensity of labour that can be very big.
According to the invention, the first movable block is fixed with the first sliding block, the second movable block is fixed with the second sliding block, the installation section is provided with the sliding groove, the sliding groove is positioned above the first fixed seat and the second fixed seat, the first movable block is in sliding connection with the installation section through the first sliding block, and the second movable block is in sliding connection with the installation section through the second sliding block, so that the first movable block and the second movable block are guided and restrained conveniently, the first movable block and the second movable block are close to each other or are away from each other more smoothly, and the use convenience is improved.
And the end part of the positive thread section is fixedly connected with a first limiting screw, the end part of the negative thread section is fixedly connected with a second limiting screw, and the limiting screws can play a good limiting role, so that the first movable block and the second movable block are prevented from slipping, and the working reliability of the whole movable well testing stop fork is ensured.
According to the invention, the first fixing seat is provided with the two first fastening screws, and the first fixing seat is fixed on the mounting section of the body through the first fastening screws, so that the first fixing seat can be more firmly fixed on the body.
According to the invention, the second fixing seat is provided with the two second fastening screws, and the second fixing seat is fixed on the mounting section of the body through the second fastening screws, so that the second fixing seat can be more firmly fixed on the body, and the structural strength is ensured.
According to the invention, the end part of the holding section is provided with the through hole, so that the holding section is convenient to hang, store and store.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a first movable block according to the present invention;
FIG. 3 is a schematic structural diagram of a second movable block according to the present invention;
the labels in the figure are: 1. the body, 2, first movable block, 3, the second movable block, 4, the installation section, 5, the section of gripping, 6, first fixing base, 7, the second fixing base, 8, the positive thread section, 9, first smooth shaft section, 10, the annular knurl section, 11, the second smooth shaft section, 12, the anti-thread section, 13, first slider, 14, the second slider, 15, the spout, 16, first stop screw, 17, the second stop screw, 18, first fastening screw, 19, the second fastening screw, 20, the through-hole.
Detailed Description
Example 1
Referring to fig. 1, a well testing stop fork, includes body 1, still includes rotation axis, first movable block 2 and second movable block 3, body 1 is "Y" font, and body 1 includes installation section 4 and grips section 5, first fixing base 6 of fixedly connected with and second fixing base 7 on the installation section 4, the rotation axis is the cylinder, and the rotation axis passes through threaded connection with first fixing base 6 and second fixing base 7, and the rotation axis includes regular thread section 8, first smooth axle section 9, annular knurl section 10, second smooth axle section 11 and back-off thread section 12 in proper order, annular knurl section 10 is located between first smooth axle section 9 and second smooth axle section 11, the rotation axis runs through first fixing base 6 and second fixing base 7, regular thread section 8 passes through threaded connection with first movable block 2, back-off thread section 12 passes through threaded connection with second movable block 3.
The embodiment is the most basic implementation manner, the body 1 is in a "Y" shape, the body 1 includes an installation section 4 and a holding section 5, a first fixing seat 6 and a second fixing seat 7 are fixedly connected to the installation section 4, the rotating shaft is a cylinder, the rotating shaft sequentially includes a regular thread section 8, a first optical axis section 9, a knurled section 10, a second optical axis section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical axis section 9 and the second optical axis section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, the reverse thread section 12 is in threaded connection with the second movable block 3, when in use, the rotating shaft is rotated counterclockwise, the first movable block 2 and the second movable block 3 can be moved toward the center at the same time, the opening of the fork can be adjusted by rotating the rotating shaft according to the size of the flat square of the field instrument string, realize the nimble regulation of movable test well fender fork opening size, compared with prior art, simple structure, reasonable in design can be convenient nimble with the cluster card of various size test well instruments at the blowout prevention mouth of pipe, the flexibility is strong, reduction intensity of labour that can be very big.
Example 2
Referring to fig. 1-3, a well testing stop fork comprises a body 1, a rotating shaft, a first movable block 2 and a second movable block 3, the body 1 is Y-shaped, the body 1 comprises an installation section 4 and a holding section 5, the installation section 4 is fixedly connected with a first fixed seat 6 and a second fixed seat 7, the rotating shaft is a cylinder, the rotating shaft is connected with the first fixed seat 6 and the second fixed seat 7 through threads, the rotating shaft sequentially comprises a regular thread section 8, a first smooth shaft section 9, a knurled section 10, a second smooth shaft section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical axis section 9 and the second optical axis section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, and the reverse thread section 12 is in threaded connection with the second movable block 3.
First slider 13 is fixed on first movable block 2, is fixed with second slider 14 on the second movable block 3, and it has spout 15 to open on the erection segment 4, and spout 15 is located first fixing base 6 and second fixing base 7 top, and first movable block 2 passes through first slider 13 and 4 sliding connection of erection segment, and second movable block 3 passes through second slider 14 and 4 sliding connection of erection segment.
The embodiment is a preferred embodiment, be fixed with first slider 13 on the first movable block 2, be fixed with second slider 14 on the second movable block 3, it has spout 15 to open on the erection segment 4, spout 15 is located first fixing base 6 and second fixing base 7 top, first movable block 2 is through first slider 13 and 4 sliding connection of erection segment, second movable block 3 is through second slider 14 and 4 sliding connection of erection segment, be convenient for guide restraint first movable block 2 and second movable block 3, it is more smooth and easy to make first movable block 2 and second movable block 3 be close to each other or keep away from each other, improve the convenience of use.
Example 3
Referring to fig. 1-3, a well testing stop fork comprises a body 1, a rotating shaft, a first movable block 2 and a second movable block 3, the body 1 is Y-shaped, the body 1 comprises an installation section 4 and a holding section 5, the installation section 4 is fixedly connected with a first fixed seat 6 and a second fixed seat 7, the rotating shaft is a cylinder, the rotating shaft is connected with the first fixed seat 6 and the second fixed seat 7 through threads, the rotating shaft sequentially comprises a regular thread section 8, a first smooth shaft section 9, a knurled section 10, a second smooth shaft section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical axis section 9 and the second optical axis section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, and the reverse thread section 12 is in threaded connection with the second movable block 3.
First slider 13 is fixed on first movable block 2, is fixed with second slider 14 on the second movable block 3, and it has spout 15 to open on the erection segment 4, and spout 15 is located first fixing base 6 and second fixing base 7 top, and first movable block 2 passes through first slider 13 and 4 sliding connection of erection segment, and second movable block 3 passes through second slider 14 and 4 sliding connection of erection segment.
The end part of the regular thread section 8 is fixedly connected with a first limit screw 16, and the end part of the reverse thread section 12 is fixedly connected with a second limit screw 17.
In this embodiment, a first limit screw 16 is fixedly connected to an end of the normal-thread section 8, and a second limit screw 17 is fixedly connected to an end of the reverse-thread section 12, so that a good limiting effect can be achieved through the limit screws, the first movable block 2 and the second movable block 3 are prevented from slipping, and the operational reliability of the whole movable well testing stop fork is ensured.
Example 4
Referring to fig. 1-3, a well testing stop fork comprises a body 1, a rotating shaft, a first movable block 2 and a second movable block 3, the body 1 is Y-shaped, the body 1 comprises an installation section 4 and a holding section 5, the installation section 4 is fixedly connected with a first fixed seat 6 and a second fixed seat 7, the rotating shaft is a cylinder, the rotating shaft is connected with the first fixed seat 6 and the second fixed seat 7 through threads, the rotating shaft sequentially comprises a regular thread section 8, a first smooth shaft section 9, a knurled section 10, a second smooth shaft section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical axis section 9 and the second optical axis section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, and the reverse thread section 12 is in threaded connection with the second movable block 3.
First slider 13 is fixed on first movable block 2, is fixed with second slider 14 on the second movable block 3, and it has spout 15 to open on the erection segment 4, and spout 15 is located first fixing base 6 and second fixing base 7 top, and first movable block 2 passes through first slider 13 and 4 sliding connection of erection segment, and second movable block 3 passes through second slider 14 and 4 sliding connection of erection segment.
The end part of the regular thread section 8 is fixedly connected with a first limit screw 16, and the end part of the reverse thread section 12 is fixedly connected with a second limit screw 17.
Two first fastening screws 18 are arranged on the first fixing seat 6, and the first fixing seat 6 is fixed on the mounting section 4 of the body 1 through the first fastening screws 18.
Two second fastening screws 19 are arranged on the second fixing seat 7, and the second fixing seat 7 is fixed on the mounting section 4 of the body 1 through the second fastening screws 19.
In this embodiment, two first fastening screws 18 are disposed on the first fixing seat 6, and the first fixing seat 6 is fixed on the mounting section 4 of the body 1 by the first fastening screws 18, so that the first fixing seat 6 can be fixed on the body 1 more firmly.
Be provided with two second fastening screw 19 on the second fixing base 7, second fixing base 7 passes through second fastening screw 19 to be fixed on the erection section 4 of body 1, can be more firm fix second fixing base 7 on body 1, guarantee structural strength.
Example 5
Referring to fig. 1-3, a well testing stop fork comprises a body 1, a rotating shaft, a first movable block 2 and a second movable block 3, the body 1 is Y-shaped, the body 1 comprises an installation section 4 and a holding section 5, the installation section 4 is fixedly connected with a first fixed seat 6 and a second fixed seat 7, the rotating shaft is a cylinder, the rotating shaft is connected with the first fixed seat 6 and the second fixed seat 7 through threads, the rotating shaft sequentially comprises a regular thread section 8, a first smooth shaft section 9, a knurled section 10, a second smooth shaft section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical axis section 9 and the second optical axis section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, and the reverse thread section 12 is in threaded connection with the second movable block 3.
First slider 13 is fixed on first movable block 2, is fixed with second slider 14 on the second movable block 3, and it has spout 15 to open on the erection segment 4, and spout 15 is located first fixing base 6 and second fixing base 7 top, and first movable block 2 passes through first slider 13 and 4 sliding connection of erection segment, and second movable block 3 passes through second slider 14 and 4 sliding connection of erection segment.
The end part of the regular thread section 8 is fixedly connected with a first limit screw 16, and the end part of the reverse thread section 12 is fixedly connected with a second limit screw 17.
Two first fastening screws 18 are arranged on the first fixing seat 6, and the first fixing seat 6 is fixed on the mounting section 4 of the body 1 through the first fastening screws 18.
Two second fastening screws 19 are arranged on the second fixing seat 7, and the second fixing seat 7 is fixed on the mounting section 4 of the body 1 through the second fastening screws 19.
The end of the holding section 5 is provided with a through hole 20.
The embodiment is the best implementation mode, the body 1 is in a 'Y' shape, the body 1 comprises an installation section 4 and a holding section 5, a first fixing seat 6 and a second fixing seat 7 are fixedly connected to the installation section 4, the rotating shaft is a cylinder, the rotating shaft sequentially comprises a regular thread section 8, a first optical shaft section 9, a knurled section 10, a second optical shaft section 11 and a reverse thread section 12, the knurled section 10 is located between the first optical shaft section 9 and the second optical shaft section 11, the rotating shaft penetrates through the first fixing seat 6 and the second fixing seat 7, the regular thread section 8 is in threaded connection with the first movable block 2, the reverse thread section 12 is in threaded connection with the second movable block 3, when the rotating shaft is rotated anticlockwise during use, the first movable block 2 and the second movable block 3 can be moved towards the center at the same time, the opening of the fork can be adjusted by rotating the rotating shaft according to the size of the flat square of a field instrument string, realize the nimble regulation of movable test well fender fork opening size, compared with prior art, simple structure, reasonable in design can be convenient nimble with the cluster card of various size test well instruments at the blowout prevention mouth of pipe, the flexibility is strong, reduction intensity of labour that can be very big.
The end of the holding section 5 is provided with a through hole 20, which is convenient for hanging, storing and storing.