CN105089631A - Horizontal well rod conveying dynamic logging method - Google Patents

Abstract

A horizontal well rod conveying dynamic logging method belongs to the technical field of oil field horizontal well logging. Comprises the following steps: pulling out the original well pipe column, dredging the well and washing the well; secondly, a horizontal well rod is conveyed to a dynamic logging process pipe column to be put into a casing: disconnecting the tubular string from the disconnect; and (3) putting a horizontal well rod into the horizontal well rod to convey a dynamic logging process rod column: the upper part of the underground instrument is connected with a flexible short joint and a tappet, the tappet is directly connected to a required length, the uppermost tappet is connected with a cable head, and two ends of the underground instrument are connected with underground instrument centralizers; installing a wellhead guide device; the cable is connected with the cable head; pumping and draining liquid; testing by taking off a cable; and finally, pulling out the cable, the tappet rod and the logging instrument. The horizontal well test hollow pump is adopted to lift production, the cable is adopted to lift down, the tappet rod passes through the pump instrument to be conveyed, dynamic well logging is realized, the cost is low, meanwhile, the tappet rod has good rigidity and toughness and is resistant to high pressure and high temperature, the built-in cable realizes instrument signal transmission, the structure is simple, and the use is convenient.

Description

Dynamic Logging Method for Horizontal Well Rod Conveying

technical field

The invention relates to a dynamic logging method for horizontal well rod conveying and a logging process rod string for horizontal well rod conveying dynamic logging, and belongs to the technical field of horizontal well logging in oilfields.

Background technique

At present, horizontal well logging at home and abroad generally adopts three methods of tubing coiled tubing, tractor transportation, and hydraulic transportation. Existing tubing transportation and hydraulic transportation need to pump liquid, and the liquid enters the formation, which directly affects the test results, and the input cost of tractor transportation and coiled tubing transportation is relatively high. It is urgent to find a testing process technology like vertical well logging.

Chinese patent literature "Coiled Tube Horizontal Well Logging Technology and Device" Publication No.: CN101382069A, Publication Date: March 11, 2009, using coiled tubing as a delivery tool for well logging downhole instruments, but for a large number of mechanically produced water For Hirao wells, it is currently impossible to conduct liquid production profile testing under normal production conditions.

Chinese patent document "Technical Method for Measuring Fluid Production Profile by Gas Lift Method in Mechanically Mined Horizontal Wells" Publication No.: CN101403292A, Publication Date: April 8, 2009, adopts the gas lift production method, drives the test instrument with a tractor, "mainly solves the current There is a problem that some horizontal wells cannot be tested for fluid production profiles under normal production conditions.” The disadvantage is that the gas lift production method not only requires special nitrogen generation trucks and compressor trucks, but also cannot truly reflect the normal production status of mechanically mined horizontal wells.

Chinese patent document "Mechanized Production Horizontal Well Preset Fluid Production Profile Testing Method and Special Test Wellhead Device" Publication No.: CN101403291A, Publication Date: April 8, 2009, "A combination of pre-set testing instruments and downhole tractors" method, combined with a special test wellhead device to realize the preset liquid production profile test of mechanically produced horizontal wells.” The disadvantage is that the whole process is relatively complicated.

Chinese patent document "Horizontal well tubing transportation testing method under swabbing state" publication number: CN101377127A, publication date: March 4, 2009, using conventional swabbing tool wire rope pumps for swabbing production and tubing transportation testing. The disadvantages are that the test cable is located outside the oil pipe, not only the whole tripping process is complicated, but also because of the leakage of the swabbing tool and the uncertainty of whether the testing instrument is out of the protection body, it cannot reflect the normal production status of the mechanically produced horizontal well.

Contents of the invention

The main purpose of the present invention is to provide a dynamic logging method for horizontal well rod conveying and a logging process rod string for horizontal well rod conveying dynamic logging, so as to solve the problem of pumping liquid for horizontal well logging in the prior art, which leads to Inaccurate question.

In order to achieve the above object, according to one aspect of the present invention, a logging process rod string for conveying dynamic logging by horizontal well rods is provided. Well process string, horizontal well rod conveying dynamic logging process rod string, and horizontal well testing dynamic lifting device; horizontal well rod conveying dynamic logging process string is mainly composed of tubing, disconnector, anti-jack device, and packer , Horizontal well test hollow pump, bell mouth, the bottom-up tubing string structure is: tubing bell mouth, oil pipe, horizontal well test hollow pump, packer, anti-top device, disconnector and tubing are connected in sequence, and the tubing is directly connected To the wellhead; the horizontal well rod conveys the dynamic logging process rod column, which is mainly composed of cable head, tappet, flexible sub, downhole instrument, downhole instrument centralizer, etc. The upper part of the downhole instrument is connected with flexible sub, tappet, tappet Directly to the required length, the uppermost tappet is connected to the cable head, and the two ends of the downhole instrument are connected to the centralizer of the downhole instrument; the dynamic lifting device for horizontal well testing is composed of a workover operation machine, a self-sealing well device, a tubing, and a disconnector , connecting rod, anti ^- _jacking device, packer, hollow pump for horizontal well testing, and bell mouth. The ^7/8 thickened tubing thread is connected with the anti-jack device; the anti-jack device is connected with the packer through the ² _{7/8 thickened} tubing thread; the packer is connected with the horizontal well test hollow pump through the ² _7/8 thickened tubing thread ;Horizontal well test hollow pump is connected to tubing bell mouth through ₂ ^7/8 thickened tubing thread; the length of the connecting rod is 9.5m, the outer diameter is 48.3mm, the inner diameter is 40mm. Connect with the male head of the disconnector and the hollow plunger of the horizontal well test hollow pump respectively.

Further, the horizontal well logging tappet is mainly composed of a rod body, a cable plug assembly, a pressure cap, a cable, a cable socket assembly, a retaining ring, and a protective wire and a protective cap used in storage and transportation; the rod body is composed of a cylindrical body and a cylindrical body. The body-shaped upper connector, the body and the cylindrical lower connector are welded together, and the center lines of the body, the upper connector and the lower connector are on the same straight line; the upper connector has a central hole, and the center hole of the upper connector is a ladder The center hole at the upper end of the upper connecting body has an internal thread, and the upper end thread of the upper connecting body is fixed with a protective wire used in storage and transportation; there is a cable plug assembly in the central hole in the middle of the upper connecting body; There is an axial groove, and one end of the plug anti-rotation pin of the cable plug assembly is in the axial groove; there is an internal thread on the upper end of the middle center hole of the upper connector, and the outer thread of the annular pressure cap is fixed on the upper end of the middle center hole of the upper connector. The pressure cap fixes the cable plug assembly in the middle center hole of the upper connector; the cable passes through the center hole at the lower end of the upper connector, the center hole of the body and the center hole of the lower connector to connect the cable plug assembly with the cable socket assembly; The connecting body has a central hole, the central hole of the lower connecting body is a stepped central hole, and there is a cable socket assembly in the central hole at the lower end of the lower connecting body; there is an axial groove on the wall of the central hole at the lower end of the lower connecting body, and the socket of the cable socket assembly One end of the anti-rotation pin is in the axial groove; there is an annular groove on the inner wall of the center hole at the lower end of the lower connecting body, and the annular retaining ring is stuck in the annular groove on the inner wall of the central hole at the lower end of the lower connecting body, and the retaining ring fixes the cable socket assembly at the center of the lower end of the lower connecting body In the hole; there is an external thread at the lower end of the lower connecting body, and the protective cap thread used in storage and transportation is fixed at the lower end of the lower connecting body; there is a sealing groove on the wall of the external threaded section of the lower connecting body, and there is an O sealing ring in the sealing groove; the threaded section inside the upper connecting body There is a sealing surface on the wall; when the horizontal well logging tappets and tappets and instrument tools are connected, the connection and sealing of the upper connecting body and the lower connecting body with the connecting parts are realized through threads and O sealing rings; the upper connection There is an annular groove on the outer wall of the body, which is used as the bayonet of the sucker rod elevator for lifting the tappet when the tappet is lifted on site; the cable plug assembly consists of a set screw, a plug insulating sleeve, and a plug conductive ring. , the plug anti-rotation pin and the plug main body; the plug main body is a stepped cylinder with a central hole, and the upper end of the central hole has an internal thread, which is connected and fixed with the external thread at the lower end of the set screw; the outer circle of the cylinder at the lower end of the plug main body is connected with the The axis is perpendicular to the internal thread, which is connected and fixed with the external thread at the lower end of the anti-rotation pin of the plug; the two conductive rings of the plug and the insulating sleeve of the plug are cylindrical rings, which are sequentially fixed on the middle section of the outer circle of the main body of the plug; the two conductive rings of the plug are connected respectively There are wires, which are connected with the two socket conductive rings of the cable socket assembly through a two-core cable.

Further, the cable socket assembly is composed of socket anti-rotation pin, socket conductive ring, socket insulating ring, socket body, sealing dust ring and socket pressure cap; the shape of the socket body is cylindrical, with a stepped central hole inside, and the lower end There are internal threads; there are internal threads on the outer circle of the upper end of the socket body cylinder perpendicular to the axis, which are connected and fixed with the external threads at the lower end of the anti-rotation pin of the socket; the two socket conductive rings are circular rings, and the socket insulating rings are cylindrical rings. It is fixed in the inner hole of the middle section of the main cylinder of the plug; the two socket conductive rings are respectively connected with wires, and are connected to the two plug conductive rings of the cable plug assembly through a two-core cable; the inner hole of the socket pressure cap has an annular groove, which is sealed and The dust ring is installed in the annular groove; the upper end of the outer circle of the socket pressure cap has an external thread, which is connected and fixed with the internal thread at the lower end of the socket main body.

Further, the wellhead guiding device is mainly composed of casing collar, centering fixed pulley support plate, centering fixed pulley, centering fixed pulley shaft, connecting plate, guide pulley, guide pulley shaft, shaft pin, guide pulley support plate, nut, wire Composed of rods and pin shafts; the casing collar is cylindrical, and two parallel rectangular centered fixed pulley support plates are welded on the outer wall of the casing collar, and the center line of the centered fixed pulley support plate and the casing collar Parallel; a centered fixed pulley is connected to the upper end of the two centered fixed pulley support plates through the centered fixed pulley shaft, and the centered fixed pulley is in the middle of the two centered fixed pulley support plates; the lower part of the two centered fixed pulley support plates is passed through a pin The shaft is connected with a screw joint. The cross section of the screw joint is circular or square. There is a pin hole at one end of the screw joint. There are shaft pin holes at the lower part of the two centered fixed pulley support plates. The pin passes through the wire. The pin shaft hole of the rod joint and the pin holes of the two centered fixed pulley support plates; there is a central screw hole at the other end of the screw joint, and a screw rod is fixed in the center screw hole at the other end of the screw joint, and the center line of the screw joint It is on the same straight line as the center line of the screw; there is a nut on the screw; a sliding sleeve is placed on the lower part of the nut and on the screw, and two revolving pins are symmetrically welded on the outer wall of the sliding sleeve, supported by two guide pulleys. There are pin holes at the lower end of the plate, and the two pins are respectively inserted into the pin holes at the lower ends of the two guide pulley support plates; the two guide pulley support plates are rectangular flat plates; the upper ends of the two guide pulley support plates are respectively Shaft pin holes are arranged, a guide pulley shaft is arranged in the shaft pin holes at the ends of the two guide pulley support plates, the guide pulley shaft is connected with guide pulleys, and the guide pulley is in the middle of the two guide pulley support plates.

Further, there are pivot pin holes in the middle of the two guide pulley support plates, there are pivot pins in the pivot pin holes in the middle of the two guide pulley support plates, and the pivot pins pass through the pivot pin holes in the middle of the two guide pulley support plates and The pivot pin hole at one end of the connecting plate, the pivot pin connects the connecting plate to the middle of the two guide pulley support plates; there is a pin hole in the middle of the center fixed pulley support plate, and a pin shaft is worn in the pin hole of the center fixed pulley support plate, The other end of the connecting plate is connected to the two ends of the bearing pin.

According to another aspect of the present invention, a dynamic logging method for horizontal well rod conveying is also provided. The well method includes the following steps: first, the original well string is pulled out, the well is dredged, and the well is washed; secondly, the horizontal well rod conveying dynamic logging process string is lowered into the casing, from bottom to top: tubing bell mouth, tubing, Horizontal well test hollow pump, packer, anti-jack device, disconnector, tubing, the tubing is connected to the wellhead, the seat packer anchors the anti-jack device, and the tubing string is disconnected from the disconnector; Into the horizontal well rod to convey the dynamic logging process rod string: the upper part of the downhole instrument is connected with the flexible nipple and the tappet, and the tappet is connected to the required length, the uppermost tappet is connected with the cable head, and the two ends of the downhole instrument are connected with the centralizer ; Fourth, install the wellhead guide device; Fifth, connect the cable to the cable head;

Further, the on-site use method of the horizontal well logging tappet: during the logging operation, the lower connection body of the bottom tappet of the horizontal well logging tappet is connected to the logging instrument, and the upper connection body is connected to the device. It is necessary to combine multiple cables, and the upper connector of the last one is connected to the cable head, and the cable is lifted and lowered for testing.

Furthermore, when performing well logging operations, multiple horizontal well logging tappets can be connected in series according to the needs of well logging. That is, the lower end of the lower connecting body of a horizontal well logging tappet at the lowest end is threaded to the logging instrument, and the cable socket assembly is connected to the logging instrument; the upper end of the horizontal well logging tappet is connected to another The horizontal well logging tappet, the cable socket assembly and the cable plug assembly are connected and conducted; the upper end of the upper connecting body of the uppermost horizontal well logging tappet is threaded to connect the cable head, and the cable head is connected to the uppermost horizontal well logging tappet. The cable plug assembly of the tappet is connected in continuity; the upper part of the cable head connects the cable to the wellhead, and the test is carried out by lifting and lowering the cable.

Further, the use of the wellhead guiding device includes the following steps: remove the guide pulley of the wellhead guiding device, pass the cable through the hole opened at one end of the support plate of the guide pulley, install the guide pulley and turn the screw rod, so that the guide pulley moves inward , so that there is a certain distance between the cable and the traveling block of the working machine, the cable can be lowered; when the cable needs to be lowered, the nut is rotated to make the nut rotate to the end of the screw near the screw joint; due to the centering of the pulley support plate, A quadrilateral is formed between the connecting plate, the guide pulley support plate and the screw joint, so that the guide pulley support plate is parallel to the central fixed pulley support plate, and the guide pulley support plate drives the guide pulley away from the top of the casing collar above the wellhead; at this time, the cable The traction line of the guide pulley leaves the top of the wellhead; after the cable starts working, the cable can avoid the traveling block of the operating machine to avoid friction between the cable and the traveling block of the operating machine and prevent cable wear; then, the cable enters through the guidance of the centered fixed pulley In the wellhead, the cable will not rub against the wellhead casing or tubing, reducing the wear of the cable.

Applying the technical scheme of the present invention, the horizontal well rod is used to transport the logging process rod string, and the horizontal well logging is carried out to realize the lifting and lowering of the cable, and the cost is low. Signal transmission, simple structure, easy to use; use the horizontal well rod conveying logging method to carry out horizontal well logging, realize cable lifting, low cost, at the same time, the tappet has good rigidity, toughness, high pressure and high temperature resistance, and the built-in cable realizes instrument signal Transmission, simple structure, easy to use.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture :

Fig. 1 shows the structural representation of the present invention ;

Fig. 2 shows a schematic structural view of a tappet of the present invention;

Fig. 3 shows a schematic diagram of the tappet cable plug assembly of the present invention ;

Fig. 4 shows a schematic diagram of the tappet cable socket assembly of the present invention ;

Fig. 5 shows a schematic diagram of the dynamic lifting device for horizontal well testing of the present invention .

Fig. 6 shows the structural representation of the wellhead guide device of the present invention ;

Fig. 7 shows a schematic diagram of the working state of the wellhead guide device of the present invention.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

In order to overcome the deficiencies of the prior art, the present invention provides a horizontal well rod conveying dynamic logging method and a logging process rod string for horizontal well rod conveying dynamic logging.

The invention adopts the horizontal well to test the lifting production of the hollow pump, the tappet is transported through the pump instrument, and the dynamic test of the horizontal well is completed by adopting the cable hoisting mode.

The invention provides a horizontal well logging process rod pipe string, which ensures the realization of the horizontal well rod conveying dynamic logging method.

A cable wellhead guide device is provided, which is used for swabbing tests in horizontal wells to ensure that the cable joint passes through the wellhead smoothly, avoiding the traveling block of the operating machine, reducing the friction between the cable and the traveling block of the operating machine, and protecting the cable from abrasion.

The technical scheme adopted in the present invention is: the dynamic logging method of horizontal well rod conveying:

First, pull out the original well string, pass through the well, and wash the well;

Secondly, put the horizontal well rod conveying dynamic logging process string into the casing: from bottom to top: tubing bell mouth, tubing, hollow pump for horizontal well testing, packer, anti-jack device, disconnector, tubing, tubing All the way to the wellhead, the seat packer anchors the anti-jack device, and the pipe string is disconnected from the disconnector;

Thirdly, run the rod string into the horizontal well rod to convey the dynamic logging process: the upper part of the downhole instrument is connected with the flexible nipple and the tappet, and the tappet is connected to the required length. Downhole instrument centralizer;

Fourth, install wellhead guides;

Fifth, the cable is connected to the cable head;

Sixth, pumping and drainage;

Seventh, use cables to lift and lower for testing;

Finally, take out the cables, tappets, and logging instruments.

Field use method of horizontal well logging tappet:

When performing well logging operations, the lower connecting body of the horizontal well logging tappet is connected to the logging instrument, and the upper connecting body is connected to the device. Multiple pieces can be combined according to the logging needs. The upper connecting body of the last one is connected to the cable head. Next to test.

When performing well logging operations, multiple horizontal well logging tappets can be connected in series according to the needs of well logging. That is, the lower end of the lower connecting body of a horizontal well logging tappet at the lowest end is threaded to the logging instrument, and the cable socket assembly is connected to the logging instrument; the upper end of the horizontal well logging tappet is connected to another The horizontal well logging tappet, the cable socket assembly and the cable plug assembly are connected and conducted; the upper end of the upper connecting body of the uppermost horizontal well logging tappet is threaded to connect the cable head, and the cable head is connected to the uppermost horizontal well logging tappet. The cable plug assembly of the tappet is connected in conduction; the upper part of the cable head connects the cable to the wellhead. The test is performed using a cable lift.

The use of wellhead steering device includes the following steps:

Remove the guide pulley of the wellhead guide device, pass the cable through the hole at one end of the support plate of the guide pulley, install the guide pulley and turn the screw rod, so that the guide pulley moves inward, and the distance between the cable and the traveling block of the working machine After a certain distance exists, the cable can be lowered; when the cable needs to be lowered, the nut is rotated so that the nut is rotated to the end of the screw rod close to the screw joint; due to the centering of the pulley support plate, connecting plate, guide pulley support plate and screw joint A quadrilateral is formed between them, so that the guide pulley support plate is parallel to the centered fixed pulley support plate, and the guide pulley support plate drives the guide pulley away from the top of the casing collar above the wellhead; at this time, the cable leaves above the wellhead on the traction line of the guide pulley; After the start of lowering the cable, the cable can avoid the traveling block of the operating machine to avoid the friction between the cable and the traveling block of the operating machine, and prevent the cable from being worn; then, the cable is guided into the wellhead by the centered fixed pulley, so that the cable will not interfere with the wellhead casing Or oil pipe friction, reducing the wear of the cable;

A logging process rod string for dynamic logging conveyed by a horizontal well rod The horizontal well rod conveys the dynamic logging process string, which is mainly composed of tubing, disconnector, anti-jack device, packer, hollow pump for horizontal well testing, and bell mouth, from bottom to bottom The structure of the upper tubing string is: bell mouth of tubing, tubing, hollow pump for horizontal well testing, packer, anti-jack, disconnector and tubing are connected in sequence, and the tubing is connected to the wellhead; It is mainly composed of cable heads, tappets, flexible nipples, downhole instruments, downhole instrument centralizers, etc. The upper part of downhole instruments is connected to flexible nipples and tappets, and the tappets are connected to the required length. The uppermost tappet is connected to the cable head , both ends of downhole instruments are connected with centralizers for downhole instruments; dynamic lifting device for horizontal well testing, consisting of workover machine, self-sealing well sealing device, tubing, disconnector, connecting rod, anti-jacking device, packer, horizontal well The test consists of a hollow pump and a bell mouth. The oil pipe passes through the self-sealing well sealing device and is connected with the disconnector through a ₂ ^7/8 thickened oil pipe thread; the disconnector is connected with the anti-jack device through a ² _7/8 thickened oil pipe thread; The jack is connected to the packer through the ₂ ^7/8 thickened tubing thread; the packer is connected to the horizontal well test hollow pump through the ₂ ^7/8 thickened tubing thread; the horizontal well test hollow pump is connected to the ₂ ^7/8 thickened tubing The thread is connected to the bell mouth of the oil pipe; the length of the connecting rod is 9.5m, the outer diameter is 48.3mm, and the inner diameter is 40mm, and the two ends are respectively equipped with M48×2.5 male buckles, which are respectively connected with the male head of the disconnector and the horizontal well test hollow pump Hollow plunger connection; horizontal well logging tappet, mainly composed of rod body, cable plug assembly, pressure cap, cable, cable socket assembly, retaining ring and protective wire and protective cap used in storage and transportation; rod body is composed of cylindrical The body, the cylindrical upper connecting body and the cylindrical lower connecting body are welded together, and the center lines of the main body, the upper connecting body and the lower connecting body are on the same straight line; the upper connecting body has a central hole, and the central hole of the upper connecting body is Stepped central hole, the upper central hole of the upper connecting body has an internal thread, and the upper end thread of the upper connecting body is fixed with a protective wire used in storage and transportation; there is a cable plug assembly in the central hole in the middle of the upper connecting body; There is an axial groove, and one end of the plug anti-rotation pin of the cable plug assembly is in the axial groove; there is an internal thread on the upper end of the middle center hole of the upper connector, and the outer thread of the annular pressure cap is fixed on the upper end of the middle center hole of the upper connector , the pressure cap fixes the cable plug assembly in the middle center hole of the upper connector; the cable passes through the lower center hole of the upper connector, the center hole of the body and the center hole of the lower connector, and connects the cable plug assembly and the cable socket assembly; The lower connecting body has a central hole, the central hole of the lower connecting body is a stepped central hole, and there is a cable socket assembly in the central hole at the lower end of the lower connecting body; there is an axial groove on the wall of the central hole at the lower end of the lower connecting body, and the cable socket assembly One end of the anti-rotation pin of the socket is in the axial groove; there is an annular groove on the inner wall of the center hole at the lower end of the lower connecting body, and the annular retaining ring is stuck in the lower In the annular groove on the inner wall of the central hole at the lower end of the connecting body, the retaining ring fixes the cable socket assembly in the central hole at the lower end of the lower connecting body; there is an external thread at the lower end of the lower connecting body, and the thread of the protective cap used in storage and transportation is fixed at the lower end of the lower connecting body; outside the lower connecting body There is a sealing groove on the wall of the threaded section, and there is an O sealing ring in the sealing groove; there is a sealing surface on the wall of the threaded section in the upper connecting body; when connecting between the tappets for horizontal well logging and between tappets and instrument tools, The connection and sealing of the upper connecting body and the lower connecting body with the connecting parts are realized through threads and O sealing rings; there is an annular groove on the outer wall of the upper connecting body, which is used as a sucker rod elevator for lifting the tappet when the tappet is lifted up and down in the well. bayonet; the cable plug assembly is composed of a set screw, a plug insulating sleeve, a plug conductive ring, a plug anti-rotation pin and a plug body; the shape of the plug body is a stepped cylinder with a central hole and a central hole The upper end of the plug has an internal thread, which is connected and fixed with the external thread at the lower end of the set screw; the outer circle of the cylinder at the lower end of the plug body is perpendicular to the axis and has an internal thread, which is connected and fixed with the external thread at the lower end of the plug anti-rotation pin; 2 plug conductive rings and plug The insulating sleeve is in the shape of a cylindrical ring, which is sequentially fixed on the middle section of the outer circle of the main body of the plug; the two conductive rings of the plug are respectively connected with wires, and are connected to the two conductive rings of the cable socket assembly through a double-core cable; the cable socket The assembly is composed of socket anti-rotation pin, socket conductive ring, socket insulating ring, socket body, sealing dust ring and socket pressure cap; the shape of the socket body is cylindrical, with a stepped central hole inside and an internal thread at the lower end; the socket body There is an internal thread on the outer circle of the upper end of the cylinder perpendicular to the axis, which is connected and fixed with the external thread at the lower end of the anti-rotation pin of the socket; the two conductive rings of the socket are circular, and the insulating ring of the socket is cylindrical, which are sequentially fixed on the main cylinder of the plug In the inner hole of the middle section; the two conductive rings of the socket are respectively connected with wires, and are connected to the two conductive rings of the cable plug assembly through a two-core cable; the inner hole of the socket pressure cap has a ring groove, and the sealing dust ring is installed in the ring In the groove; the upper end of the outer circle of the socket pressure cap has an external thread, which is connected and fixed with the internal thread at the lower end of the socket main body; the wellhead guide device is mainly composed of a casing collar 1501, a centered fixed pulley support plate 1503, a centered fixed pulley 1504, and a centered fixed pulley shaft 1505, connecting plate 1506, guide pulley 1507, guide pulley shaft 1508, pivot pin 1509, guide pulley support plate 1510, nut 1511, screw mandrel 1512 and bearing pin 1514 form. It is characterized in that: the casing collar 1501 is cylindrical, and the casing collar 1501 can be set on the tubing collar at the wellhead to fix the guiding device during logging work. Two parallel rectangular centered pulley support plates 1503 are welded on the outer wall of the casing collar 1501, and the centered fixed pulley support plate 1503 is parallel to the center line of the casing collar 1501; two centered fixed pulley support plates 1503 The upper end of the upper end is connected with a centered fixed pulley 1504 through the centered fixed pulley shaft 1505, and the centered fixed pulley 1504 is in the middle of two centered fixed pulley support plates 1503; Screw joint 1513, the cross section of screw joint 1513 is circular or square, there is a pin hole at one end of the screw joint 1513, there is a pin hole at the bottom of the two centered fixed pulley support plates 1503, and the pin shaft 1514 passes through The pin shaft hole of the screw joint 1513 and the 1503 pin holes of the fixed pulley support plate in the center; the screw joint 1513 can rotate along the shaft pin 1514; A screw mandrel 1512 is fixed in the center screw hole at one end, and the center line of the screw mandrel joint 1513 is on the same straight line as the center line of the screw mandrel 1512; there is a nut 1511 on the screw mandrel 1512; There is a sliding sleeve, and two rotating pins are symmetrically welded on the outer wall of the sliding sleeve. There are rotating pin holes at the lower ends of the two guide pulley support plates 1510. In the pin holes; the two guide pulley support plates 1510 are rectangular flat plates; the upper ends of the two guide pulley support plates 1510 have shaft pin holes respectively, and there is a guide pin hole in the shaft pin holes at the upper ends of the two guide pulley support plates 1510. Pulley shaft 1508, guide pulley shaft 1508 is connected with guide pulley 1507, guide pulley 1507 is in the middle of two guide pulley support plates 1510; A shaft pin 1509 is arranged in the shaft pin hole at the middle part of 1510, and the shaft pin 1509 passes through the shaft pin hole at the middle part of the two guide pulley support plates 1510 and the shaft pin hole at one end of the connection plate 1506, and the shaft pin 1509 connects the connection plate 1506 between the two The middle part of guide pulley support plate 1510; Center fixed pulley support plate 1503 middle part has pin shaft hole, is worn pin shaft in the pin shaft hole of center fixed pulley support plate 1503, and the other end of connecting plate 1506 is connected to the two ends of pin shaft.

The working principle and working process of the present invention: referring to Fig. 1 , when performing well logging operation, the horizontal well rod is lowered first to transport the dynamic logging process string, the seat seal packer, the anchoring anti-jack device, and the string is disconnected from the Disengage at the device, drain liquid by swabbing, and then lower into the horizontal well rod to transport the dynamic logging process rod string, the cable is connected with the cable head, and the test is carried out by lifting and lowering the cable.

Beneficial effects of the present invention: use the horizontal well rod transport dynamic logging method to perform horizontal well logging, use the horizontal well to test the hollow pump for lifting production, use cable lifting, tappets are transported through the pump instrument, and realize dynamic logging. Low, at the same time, the tappet has good rigidity and toughness, high pressure and high temperature resistance, and the built-in cable realizes instrument signal transmission, simple structure, and easy to use.

Embodiment 1: as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , and Figure 7 ,

The horizontal well rod conveying dynamic logging process rod string is composed of the horizontal well rod conveying dynamic logging process string and the horizontal well rod conveying dynamic logging process string. The horizontal well rod conveying dynamic logging process string is mainly composed of tubing 8. Disconnector 12, anti-top device 11, packer 10, hollow pump for horizontal well testing 9, and bell mouth 7. The bottom-up string structure is: 2 ⁷ / ₈ in tubing bell mouth 7, 2 ⁷ / ₈ in tubing 8, hollow pump for horizontal well testing 9, Y211-114 packer 10, anti-top device 11, disconnector 12, 2 ^7/8 in tubing ₈ are connected in sequence, and 2 ^7/8 in tubing ₈ is connected to the wellhead ;Horizontal well rod conveying dynamic logging process rod column, mainly composed of cable head 5, tappet 4, flexible sub-joint 3, downhole instrument 2, downhole instrument centralizer 1, 17, etc., the upper part of downhole instrument 2 is connected with flexible sub-joint 3 , tappet 4, tappet 4 is connected to the required length, the uppermost tappet is connected to cable head 5, downhole instrument 2 ends are connected with downhole instrument centralizer 1, 17; the first downhole instrument centralizer in casing 13 The downhole tool 1 is connected to the downhole tool 2, the other end of the downhole tool 2 is connected to the second downhole tool centralizer 17, the other end of the second downhole tool centralizer 17 is connected to the flexible nipple 3, and the other end of the flexible nipple 3 is connected to the tappet 4, The other end of the tappet 4 is connected to the cable head 5, the other end of the cable head 5 is connected to the cable 6, the other end of the cable 6 is connected to the bell mouth 7, the other end of the bell mouth 7 is connected to the oil pipe 8, and the other end of the oil pipe 8 is connected to the suction pump 9. The other end of the suction pump 9 is connected to the packer 10, the other end of the packer 10 is connected to the anti-jack device 11, the other end of the anti-jack device 11 is connected to the tubing disconnector 12, and the other end of the tubing disconnector 12 is The wellhead is connected, the casing 13 is connected to the wellhead, and the wellhead is connected to the ground pulley 14, the wellhead guiding device 15 and the sky pulley 16.

Referring to Fig. 1 , during the logging operation, the horizontal well rod is first lowered to transport the dynamic logging process string, the seat packer, the anchoring anti-jack device, and the string is released from the disconnector:

Setting: lift the string to a height of 1.3m, lower the string slowly, pressurize to 6-8t, and set the packer. Continue to lower the pipe string slowly, increase the pressure to 10t, and anchor the anti-jack device;

Disconnection: Lift the string slowly, control the suspended weight to 15.5-16t, reverse the tubing for 20-24 turns, and disconnect the string from the disconnector;

Swabbing and draining: control the pumping stroke to ≤4.5m, stroke times 2 to 3min ^-1 , the pumped liquid is recovered in a pool, and the test starts after the liquid discharge meets the requirements.

Then go down into the horizontal well rod to convey the dynamic logging process rod column, the cable is connected with the cable head, and the test is carried out by lifting and lowering the cable.

Example 2:

As shown in Figure 2 , the horizontal well logging tappet mainly consists of a rod body, a cable plug assembly 403, a pressure cap 404, a cable 405, a cable socket assembly 407, a retaining ring 409, and a protective wire 401 and a protective cap 410 used in storage and transportation. Composition; Rod body is welded together by cylindrical main body 406 outer diameter 38 millimeters, inner diameter 25 millimeters, length 8000 millimeters, cylindrical upper connector 402 and cylindrical lower connector 408, body 406, upper connector 402 and lower The center line of the connecting body 408 is on the same straight line; the upper connecting body 402 has a central hole, the central hole of the upper connecting body 402 is a stepped central hole, and the central hole at the upper end of the upper connecting body 402 has a 11/16 sucker rod internal thread. The upper end of the upper connecting body 402 is screwed with a protective wire 401 used in storage and transportation; there is a cable plug assembly 403 in the central hole with a diameter of 15 mm in the middle of the upper connecting body 402; there is an axial groove with a width of 2 mm in the middle central hole wall One end of the plug anti-rotation pin 40304 of the cable plug assembly 403 is in the axial groove; there is an internal thread at the upper end of the middle center hole of the upper connector 402, and the ring-shaped pressure cap 404 is fixed to the upper end of the middle center hole of the upper connector 402 by external threads , the pressure cap 404 fixes the cable plug assembly 403 in the middle center hole of the upper connector 40402; the cable 405 passes through the center hole at the lower end of the upper connector 402, the center hole of the body 406 and the center hole of the lower connector 408, and the cable plug assembly 403 is connected with the cable socket assembly 407; the lower connecting body 408 has a central hole, the central hole of the lower connecting body 408 is a stepped central hole, and there is a cable socket assembly 407 in the central hole of the lower end of the lower connecting body 408 with a diameter of 15 mm; There is an axial groove with a width of 2 mm on the wall of the central hole at the lower end of the connecting body 408, and one end of the socket anti-rotation pin 40701 of the cable socket assembly 407 is in the axial groove; 409 is stuck in the annular groove on the inner wall of the central hole at the lower end of the lower connecting body 408, and the retaining ring 409 fixes the cable socket assembly 407 in the central hole at the lower end of the lower connecting body 408; there is an external thread of 11/16 sucker rod at the lower end of the lower connecting body 408, which is used in storage and transportation The protective cap 410 thread is fixed on the lower end of the lower connecting body 408; a sealing groove is arranged on the wall of the lower connecting body 408 external thread section, and an O sealing ring is arranged in the sealing groove; a sealing surface is arranged on the wall of the upper connecting body 402 internal thread section; When the horizontal well logging tappets and between the tappets and the instrument tool are connected, the upper connecting body 402 and the lower connecting body 408 are connected and sealed with the connecting parts through threads and O sealing rings; on the outer wall of the upper connecting body 402 There is an annular groove with a diameter of 28 mm, which is used as the bayonet of the sucker rod elevator for lifting the tappet when the tappet is lifted and operated on site; as shown in Figure 3 , the cable plug assembly 403 is fixed by a Screw 40301, plug insulating sleeve 40302, plug conductive ring 40303, plug anti-rotation pin 40304 and plug main body 40305; plug main body 40305 is a stepped cylinder with a central hole, the upper end of which is There is an internal thread, which is connected and fixed with the external thread at the lower end of the set screw 40301; the outer circle of the cylinder at the lower end of the plug body 40305 is perpendicular to the axis and has an internal thread, which is connected and fixed with the external thread at the lower end of the plug anti-rotation pin 40304; 2 plug conductive rings 40303 And the plug insulating sleeve 40302 is a cylindrical ring, which is fixed on the middle section of the outer circle of the plug main body 40305 in turn; the two plug conductive rings 40303 are respectively connected with wires, through the two-core cable 405 and the two socket conductive rings of the cable socket assembly 407 40702 connection; as shown in Figure 4 , the cable socket assembly 407 is composed of socket anti-rotation pin 40701, socket conductive ring 40702, socket insulating ring 40703, socket main body 40704, sealing dustproof ring 40705 and socket pressing cap 40706; The socket main body 40704 is cylindrical in shape with a stepped central hole inside and an internal thread at the lower end; the outer circle of the upper end of the socket main body 40704 has an internal thread perpendicular to the axis, which is connected and fixed with the external thread at the lower end of the anti-rotation pin 40701 of the socket; 2 The two socket conductive rings 40702 are circular, and the socket insulating ring 40703 is cylindrical, which are fixed in the inner hole of the middle section of the plug body 40305; The two plug conductive rings 40303 of the cable plug assembly 403 are connected; the inner hole of the socket pressing cap 40706 has an annular groove, and the sealing dustproof ring 40705 is installed in the annular groove; 40704 The lower end internal thread connection is fixed.

Example 3:

Referring to Fig. 5 , the horizontal well dynamic logging lifting device of the present invention is mainly composed of a workover operation machine 19, a self-sealing sealing device 18, an oil pipe 8, an SCT-62 type disconnector 12, a connecting rod 20, and an SCF-62 type anti-corrosion device. Jacking device 11, Y211-114 type packer 10, SCB-40 type horizontal well testing hollow pump 9, bell mouth 7; workover operation machine 19 is connected to self-sealing well sealing device 18, and tubing 8 passes through self-sealing well sealing device 18 , connected with SCT-62 type disconnector 12 through ₂ ^7/8 thickened oil pipe thread; SCT-62 type disconnector 12 is connected with SCF-62 type anti-top device 11 through ₂ ^7/8 thickened oil pipe thread; SCF -62 type anti-topping device 11 is connected with Y211-114 type packer ₁₀ through ^{2 7/8} thickened tubing thread; Y211-114 type packer 10 is connected with SCB-40 type water pipe through 2 _7/8 thickened tubing thread The flat well test hollow pump 9 is connected; the SCB-40 horizontal well test hollow pump 9 is connected with the tubing horn ₇ through 2 ^7/8 thickened tubing threads; the length of the connecting rod 20 is 9.5m, the outer diameter is 48.3mm, and the inner diameter is 40mm. There are M48×2.5 male buckles at both ends, which are respectively connected with the male head of the SCT-62 type disconnector 12 and the hollow plunger of the SCB-40 type horizontal well test hollow pump 9 .

Embodiment 4: Taking a wellhead guiding device as an example, the present invention will be further described in detail.

See Figure 6 . The cable wellhead guiding device of the present invention mainly consists of a casing collar 1501, a centered fixed pulley support plate 1503, a centered fixed pulley 1504, a centered fixed pulley shaft 1505, a connecting plate 1506, a guide pulley 1507, a guide pulley shaft 1508, a shaft pin 1509, Guide pulley support plate 1510, nut 1511, screw mandrel 1512 and bearing pin 1514 are formed.

The casing collar 1501 is cylindrical, and two parallel rectangular centered pulley support plates 1503 are welded on the outer wall of the casing collar 1501. The length of the centered fixed pulley support plate 1503 is 400 mm and the width is 70 mm. The central fixed pulley support plate 1503 is parallel to the centerline of the casing collar 1501 . A centered fixed pulley 1504 is connected to the upper ends of the two centered fixed pulley support plates 1503 through the centered fixed pulley shaft 1505, and the centered fixed pulley 1504 is in the middle of the two centered fixed pulley support plates 1503. The diameter of centering fixed pulley 1504 is 150mm. A screw joint 1513 is connected to the bottom of the two centered fixed pulley support plates 1503 through a pin shaft 1514. The cross section of the screw joint 1513 is a square, and one end of the screw joint 1513 has a horizontal pin hole. The bottom of the centered fixed pulley support plate 1503 has a pin hole, and the pin shaft 1514 passes through the pin hole of the screw mandrel joint 1513 and the two centered fixed pulley support plates 1503 pin holes. There is a central screw hole at the other end of the screw joint 1513, and an M20 screw 1512 is fixed in the center screw hole at the other end of the screw joint 1513. The center line of the screw joint 1513 and the center line of the screw mandrel 1512 are on the same straight line superior. An M20 nut 1511 is arranged on the screw mandrel 1512 . At the bottom of the nut 1511 and on the screw mandrel 1512, a sliding sleeve is sleeved. Two rotating pins are symmetrically welded on the outer wall of the sliding sleeve. Insert them respectively in the re-pin holes at the lower ends of the two guide pulley support plates 1510.

The two guide pulley support plates 1510 are rectangular flat plates, the length of the guide pulley support plates 1510 is 1000mm, and the width is 100mm. The upper ends of the two guide pulley support plates 1510 have shaft pin holes respectively, and a guide pulley shaft 1508 is arranged in the shaft pin holes on the upper ends of the two guide pulley support plates 1510, and the guide pulley shaft 1508 is connected with guide pulleys 1507. The pulley 1507 is in the middle of the two guide pulley support plates 1510 . There are shaft pin holes in the middle of the two guide pulley support plates 1510, and the distance between the pivot pin holes in the middle of the guide pulley support plates 1510 and the shaft pin holes at the upper end of the guide pulley support plates 1510 is 450mm. In the shaft pin holes in the middle of the two guide pulley support plates 1510, there are shaft pins 1509, and the shaft pins 1509 pass through the shaft pin holes in the middle of the two guide pulley support plates 1510 and the shaft pin holes at one end of the connecting plate 1506, and the shaft pins 1509 will The connecting plate 1506 is connected in the middle of the two guide pulley supporting plates 1510 .

There is a pin hole in the center of the fixed pulley support plate 1503, and a pin is worn in the pin hole of the center fixed pulley support plate 1503, and the other end of the connecting plate 1506 is connected to the two ends of the pin. The connecting plate 1506 has a length of 350 mm.

Embodiment 5: A logging process rod string for dynamic logging conveyed by horizontal well rods. Composed of well logging process rod string and horizontal well testing dynamic lifting device, horizontal well rod conveying dynamic logging process string is mainly composed of tubing, disconnector, anti-jack device, packer, hollow pump for horizontal well testing, bell mouth , the string structure from bottom to top is: tubing bell mouth, tubing, hollow pump for horizontal well testing, packer, anti-jack, disconnector, and tubing are connected in sequence, and the tubing is connected to the wellhead; the horizontal well rod conveys dynamic logging The process rod string is mainly composed of cable head, tappet, flexible nipple, downhole instrument centralizer, etc. The upper part of the downhole instrument is connected to the flexible nipple and tappet, and the tappet is connected to the required length. Head, the two ends of the downhole instrument are connected with the downhole instrument centralizer; the working principle and working process of the present invention: refer to Fig. 1 . When performing well logging operations, the horizontal well rod is first lowered to transport the dynamic logging process string, the packer is set, the anchoring anti-jack device is disconnected from the disconnector, the liquid is pumped and drained, and then the water is lowered. The flat well rod conveys the rod column of the dynamic logging process, the cable is connected with the cable head, and the test is carried out by cable lifting.

Horizontal well logging tappet is mainly composed of rod body, cable plug assembly, pressure cap, cable, cable socket assembly, retaining ring and protective wire and protective cap used in storage and transportation; the rod body is composed of a cylindrical body, a cylindrical upper The connecting body and the cylindrical lower connecting body are welded together, and the center lines of the main body, the upper connecting body and the lower connecting body are on the same straight line; the upper connecting body has a central hole, and the central hole of the upper connecting body is a stepped central hole, and the upper connecting body There is an internal thread in the center hole at the upper end of the connecting body, and a protective wire used in storage and transportation is fixed on the upper end thread of the upper connecting body; there is a cable plug assembly in the central hole in the middle of the upper connecting body; there is an axial groove in the wall of the central hole, One end of the plug anti-rotation pin of the cable plug assembly is in the axial groove; there is an internal thread on the upper end of the middle center hole of the upper connector, and the outer thread of the ring-shaped pressure cap is fixed on the upper end of the middle center hole of the upper connector. The assembly is fixed in the center hole in the middle of the upper connector; the cable passes through the center hole at the lower end of the upper connector, the center hole of the body and the center hole of the lower connector to connect the cable plug assembly and the cable socket assembly; the lower connector has a center hole , the central hole of the lower connecting body is a stepped central hole, and there is a cable socket assembly in the central hole at the lower end of the lower connecting body; there is an axial groove on the wall of the central hole at the lower end of the lower connecting body, and one end of the socket anti-rotation pin of the cable socket assembly is on the In the axial groove; there is an annular groove on the inner wall of the central hole at the lower end of the lower connecting body, and the annular retaining ring is stuck in the annular groove on the inner wall of the central hole at the lower end of the lower connecting body, and the retaining ring fixes the cable socket assembly in the central hole at the lower end of the lower connecting body; There is an external thread at the lower end of the body, and the protective cap thread used in storage and transportation is fixed at the lower end of the lower connecting body; there is a sealing groove on the wall of the lower connecting body threaded section, and there is an O sealing ring in the sealing groove; there is a sealing ring on the wall of the upper connecting body threaded section surface; when horizontal well logging tappets and between tappets and instrument tools are connected, the connection and sealing of the upper connecting body and the lower connecting body with the connecting parts are realized through threads and O sealing rings; the outer wall of the upper connecting body has The annular groove is used as the bayonet of the sucker rod elevator for lifting the tappet when the tappet is lifted and lowered on site; the cable plug assembly is composed of a set screw, a plug insulating sleeve, a plug conductive ring, a plug anti- The main body of the plug is composed of a revolving pin and a plug body; the shape of the plug body is a stepped cylinder with a center hole, and the upper end of the center hole has an internal thread, which is connected and fixed with the external thread at the lower end of the set screw; the outer circle of the cylinder at the lower end of the plug body is perpendicular to the axis. The internal thread is connected and fixed with the external thread at the lower end of the anti-rotation pin of the plug; the two conductive rings of the plug and the insulating sleeve of the plug are cylindrical rings, which are sequentially fixed on the middle section of the outer circle of the main cylinder of the plug; the two conductive rings of the plug are respectively connected with wires, Connect with the two socket conductive rings of the cable socket assembly through a two-core cable; the cable socket assembly is composed of socket anti-rotation pins, socket conductive rings, socket insulating rings, socket main body, sealing dust ring and socket pressing cap ;The main body of the socket is cylindrical in shape, with a stepped central hole inside and an internal thread at the lower end; the outer circle of the upper end of the cylinder of the socket main body is vertical to the axis and has an internal thread, which is connected and fixed with the external thread at the lower end of the anti-rotation pin of the socket; 2 sockets The conductive ring is circular, and the insulating ring of the socket is cylindrical, which are sequentially fixed in the cylinder of the plug body. In the inner hole of the section; the two socket conductive rings are respectively connected with wires, and are connected to the two plug conductive rings of the cable plug assembly through a double-core cable; the inner hole of the socket pressure cap has a ring groove, and the sealing dust ring is installed in the ring In the groove; the upper end of the outer circle of the socket pressure cap has an external thread, which is connected and fixed with the internal thread at the lower end of the socket main body.

The working principle and working process of the tappet: see Figure 1 . When performing well logging operations, the lower connecting body of the horizontal well logging tappet is connected to the logging instrument, and the upper connecting body is connected to the device. Multiple pieces can be combined according to the logging needs. The upper connecting body of the last one is connected to the cable head. Next to test.

When performing well logging operations, multiple horizontal well logging tappets can be connected in series according to the needs of well logging. That is, the lower end of the lower connecting body of a horizontal well logging tappet at the lowest end is threaded to the logging instrument, and the cable socket assembly is connected to the logging instrument; the upper end of the horizontal well logging tappet is connected to another The horizontal well logging tappet, the cable socket assembly and the cable plug assembly are connected and conducted; the upper end of the upper connecting body of the uppermost horizontal well logging tappet is threaded to connect the cable head, and the cable head is connected to the uppermost horizontal well logging tappet. The cable plug assembly of the tappet is connected in conduction; the upper part of the cable head connects the cable to the wellhead. The test is performed using a cable lift.

Beneficial effects of tappets: the use of tappets for horizontal well logging is low in cost, and the hollow pump can be used to realize the lifting and lowering of cables. At the same time, the tappets have good rigidity, toughness, high pressure and high temperature resistance, and built-in cables to realize instrument signal transmission. Simple structure , easy to use.

The dynamic lifting device for horizontal well testing is composed of a workover machine, self-sealing well sealing device, oil pipe, disconnector, connecting rod, anti-jack device, packer, hollow pump for horizontal well testing, and bell mouth. The oil pipe passes through the self-sealing well The sealer is connected with the disconnector through ₂ ^7/8 thickened tubing thread; the disconnector is connected with the anti-jack device through ² _{7/8 thickened} tubing thread ^; the anti-jack device is connected with the Packer connection; the packer is connected to the horizontal well test hollow pump through the ₂ ^7/8 thickened tubing thread; the horizontal well test hollow pump is connected to the tubing bell mouth through the ₂ ^7/8 thickened tubing thread; the length of the connecting rod is 9.5m, with an outer diameter of 48.3mm and an inner diameter of 40mm, with M48×2.5 male buckles on both ends, which are respectively connected to the male head of the disconnector and the hollow plunger of the hollow pump for horizontal well testing; dynamic lift for horizontal well testing The working principle and working process of the device: during the horizontal well test lifting, the bell mouth of the tubing, the tubing, the horizontal well test hollow pump, the packer, the anti-jack device are lowered in order according to the requirements, and the connecting rod is lowered into the horizontal well test hollow The plunger of the pump is connected, and the connecting rod passes through the female head of the oil pipe release device to connect with the male head of the oil pipe release device, and then connects the male head of the oil pipe release device to the female head of the oil pipe release device. The upper part of the male head of the oil pipe disconnector connects the oil pipe to the wellhead; a self-sealing well sealer is installed at the wellhead.

Horizontal well test After the hollow pump is run below the dynamic fluid level of the horizontal well, set the packer, lower the string to pressurize, anchor the anti-jack device, reverse the tubing, and make the male head of the tubing disconnector and the female connector of the tubing disconnector Separation, the oil pipe is lifted and released by the operating machine on the ground, which can drive the male head of the oil pipe disconnector, the connecting rod and the plunger of the horizontal well test hollow pump to reciprocate, and the lifted downhole fluid is discharged from the wellhead through the annular space of the oil casing. Oil pipes, connecting rods, and hollow plungers in the horizontal well testing hollow pumps provide testing passages for testing instruments.

Beneficial effects of the dynamic lifting device for horizontal well testing: the lifting and discharging are stable and reliable, and the testing channel is smooth.

The wellhead guiding device is mainly supported by casing collar 1501, centering fixed pulley support plate 1503, centering fixed pulley 1504, centering fixed pulley shaft 1505, connecting plate 1506, guide pulley 1507, guide pulley shaft 1508, shaft pin 1509, and guide pulley Plate 1510, nut 1511, screw mandrel 1512 and pin shaft 1514 are composed. It is characterized in that: the casing collar 1501 is cylindrical, and the casing collar 1501 can be set on the tubing collar at the wellhead to fix the guiding device during logging work. Two parallel rectangular centered pulley support plates 1503 are welded on the outer wall of the casing collar 1501, and the centered fixed pulley support plate 1503 is parallel to the center line of the casing collar 1501; two centered fixed pulley support plates 1503 The upper end of the upper end is connected with a centered fixed pulley 1504 through the centered fixed pulley shaft 1505, and the centered fixed pulley 1504 is in the middle of two centered fixed pulley support plates 1503; Screw joint 1513, the cross section of screw joint 1513 is circular or square, there is a pin hole at one end of the screw joint 1513, there is a pin hole at the bottom of the two centered fixed pulley support plates 1503, and the pin shaft 1514 passes through The pin shaft hole of the screw joint 1513 and the 1503 pin holes of the fixed pulley support plate in the center; the screw joint 1513 can rotate along the shaft pin 1514; A screw mandrel 1512 is fixed in the center screw hole at one end, and the center line of the screw mandrel joint 1513 is on the same straight line as the center line of the screw mandrel 1512; there is a nut 1511 on the screw mandrel 1512; There is a sliding sleeve, and two rotating pins are symmetrically welded on the outer wall of the sliding sleeve. There are rotating pin holes at the lower ends of the two guide pulley support plates 1510. inside the pin hole.

The two guide pulley support plates 1510 are rectangular flat plates; the upper ends of the two guide pulley support plates 1510 have pin holes respectively, and a guide pulley shaft 1508 is arranged in the pin holes at the upper ends of the two guide pulley support plates 1510. A guide pulley 1507 is connected to the guide pulley shaft 1508, and the guide pulley 1507 is in the middle of the two guide pulley support plates 1510;

There are pin holes in the middle of the two guide pulley support plates 1510, there are pivot pins 1509 in the pivot pin holes in the middle of the two guide pulley support plates 1510, and the pivot pins 1509 pass through the pivot pins in the middle of the two guide pulley support plates 1510 Hole and connecting plate 1506 one end shaft pin hole, pivot pin 1509 connects connecting plate 1506 to the middle part of two guide pulley support plates 1510; Center fixed pulley support plate 1503 middle part has pin shaft hole, centers the pin of fixed pulley support plate 1503 A pin shaft is passed through the shaft hole, and the other end of the connecting plate 1506 is connected to both ends of the pin shaft.

The working principle and working process of the wellhead steering device: refer to Figure 6. Before the cable 1502 is lowered, the casing collar 1501 is first set on the tubing collar at the wellhead. The cable 1502 is then passed through the middle of the two guide pulley support plates 1510 . At this time, the nut 1511 is at the far end of the screw rod 1512 . See Figure 7. First, the guide pulley 1507 is removed, and the cable 1502 passes through the hole provided at one end of the guide pulley support plate 1510, and the guide pulley 1507 and the rotating screw rod 1512 are installed, so that the guide pulley 1507 moves inward, so that the cable 1502 and the working machine can swim After there is a certain distance between the moving blocks, the cable 1502 can be lowered. When the cable 1502 needs to be lowered, the nut 1511 is rotated so that the nut 1511 is rotated to the end of the screw rod 1512 close to the screw rod joint 1513 . Since a quadrilateral is formed between the centered fixed pulley support plate 1503, the connecting plate 1506, the guide pulley support plate 1510, and the screw joint 1513, the guide pulley support plate 1510 is parallel to the centered fixed pulley support plate 1503, and the guide pulley support plate 1510 drives the guide pulley. The pulley 1507 is away from the top of the casing collar 1501 above the wellhead. At this time, the cable 1502 leaves the top of the wellhead on the traction line of the guide pulley 1507. After the cable 1502 starts under the operation, the cable 1502 can avoid the traveling block of the working machine to avoid the friction between the cable 1502 and the traveling block of the working machine, and prevent the cable 1502 from wearing and tearing. Then, the cable 1502 is guided into the wellhead through the central fixed pulley 1504, so that the cable 1502 will not rub against the wellhead casing or tubing, reducing the wear of the cable.

Embodiment 6: Taking a horizontal well dynamic logging lifting device as an example, the present invention will be further described in detail.

The horizontal well dynamic logging lifting device of the present invention is mainly composed of a workover machine, a self-sealing well sealing device, an oil pipe, an SCT-62 type oil pipe disconnector, a connecting rod, an SCF-62 type oil pipe anti-jack device, and a Y211-114 type Composed of packer, SCB-40 type horizontal well hollow test pump and bell mouth; tubing passes through self-sealing well sealing device, and is connected with SCT-62 type tubing disconnector through ₂ ^7/8 thickened tubing thread; SCT-62 type The oil pipe disconnector is connected with the SCF-62 type oil pipe anti-jack device through 2 ⁷ / ₈ thickened oil pipe threads; the center channel of the SCF-62 type oil pipe anti-jack device is 62mm ^; / ₈ thickened tubing threads are connected with Y211-114 packer; the center pipe of Y211-114 packer is 62 mm; Y211-114 packer is connected with SCB-40 through 2 ⁷ / ₈ thickened tubing threads Type horizontal well hollow test pump connection; the pump barrel of SCB-40 horizontal well hollow test pump is a steel pipe with a length of 8 meters and an outer diameter of 110 mm; the outer diameter of the plunger of SCB-40 horizontal well hollow test pump is 90 mm; SCB-40 horizontal well hollow test pump is connected with tubing bell mouth through ₂ ^7/8 thickened tubing thread; the length of the connecting rod is 9.5 meters, the outer diameter is 48.3 mm, the inner diameter is 40 mm, and its two ends are respectively marked with meters The 48×2.5 male buckle is respectively connected with the male head of the SCT-62 type tubing disconnector and the hollow plunger of the SCB-40 type horizontal well hollow test pump.

Embodiment 7: An embodiment of a dynamic logging and lifting method for a horizontal well.

1) Going into the well: connect tubing bell mouth, tubing, SCB-40 type horizontal well hollow test pump, Y211-114 type packer, SCF-62 type tubing anti-top device, and SCT-62 type tubing disconnector in sequence. The process string is lowered into the well.

3) Install the wellhead: Install the self-sealing wellhead at the wellhead. Since the self-sealing wellsealing device can be selected from various models, and this method is a conventional technique for downhole personnel, it will not be described in detail here.

2) Setting. After the SCB-40 horizontal well hollow test pump is lowered into the dynamic liquid surface at 200m-500m, lift the string to a height of 1.3m, lower the string slowly, pressurize to 6-8 tons, and seal the Y211-114 type seal Spacer; continue to lower the pipe string slowly, increase the pressure to 10 tons, and anchor the SCF-62 tubing anti-jack device.

3) Disconnection: lift up the tubing string slowly, control the suspended weight to be the weight of the tubing above the Y211-114 packer, reverse the tubing 12 to 14 times, and disconnect the tubing string from the SCT-62 tubing disconnector.

4) Lifting: control the swabbing stroke to 3-5 meters, and the stroke times to 2-3min ^-1 . The pumped liquid is recovered in a pool.

5) Lifting out: Slowly lower the tubing string to pressurize 0.5 tons, turn the tubing forward 16 times, and lift the tubing string slowly. After confirming that the docking is completed and the Y211-114 packer is unsealed, pull out various downhole tools in sequence.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. a logging technique rod tube post for horizontal well bar conveying dynamic logging, is characterized in that,

Horizontal well bar conveying dynamic logging technique rod tube post, is tested dynamic lifting device formed by horizontal well bar conveying dynamic logging process pipe string, horizontal well bar conveying dynamic logging technique roofbolt, horizontal well;

Horizontal well bar conveying dynamic logging process pipe string, primarily of oil pipe, disjointed device, anti-apical organ, packer, horizontal well test hollow pump, horn mouth composition, tubular column structure is from bottom to top: oil pipe horn mouth, oil pipe, horizontal well test hollow pump, packer, anti-apical organ, disjointed device are connected successively with oil pipe, and oil pipe receives well head always;

Horizontal well bar conveying dynamic logging technique roofbolt, primarily of compositions such as cable head, tappet, flexible nipple, downhole instrument, downhole instrument centralizers, downhole instrument top connects flexible nipple, tappet, the length of needs received by tappet always, go up most a root elevator bar and connect cable head, downhole instrument two ends are connected to downhole instrument centralizer;

Horizontal well tests dynamic lifting device, and be made up of production rig, self-sealing blowout preventer, oil pipe, on-off connector, connecting rod, anti-apical organ, packer, horizontal well test hollow pump, horn mouth, oil pipe, through self-sealing blowout preventer, passes through 2 with on-off connector ⁷/ ₈heavy wall tubing is threaded; On-off connector is by 2 ⁷/ ₈heavy wall tubing screw thread is connected with anti-apical organ; Anti-apical organ is by 2 ⁷/ ₈heavy wall tubing screw thread is connected with packer; Packer is by 2 ⁷/ ₈heavy wall tubing screw thread and horizontal well are tested hollow pump and are connected; Horizontal well test hollow pump is by 2 ⁷/ ₈heavy wall tubing screw thread is connected with oil pipe horn mouth; The length of connecting rod is 9.5m, external diameter 48.3mm, internal diameter 40mm, and its two ends are respectively with the pin thread of M48 × 2.5, and the hollow plunger testing hollow pump respectively with the male of on-off connector and horizontal well is connected.

2. the logging technique rod tube post of horizontal well bar conveying dynamic logging according to claim 1, is characterized in that,

Horizontal wellbore logging tappet, primarily of the thread protector (401) used in the body of rod, cable plug assembly (403), pressure cap (404), cable (405), cable socket assembly (407), back-up ring (409) and accumulating and helmet (410) composition;

The body of rod is welded together with tubular lower connector (408) by tubular body (406) and tubular upper connector (402), body (406), and the center line of body (406), upper connector (402) and lower connector (408) is on same straight line;

Upper connector (402) has centre bore, upper connector (402) centre bore is stepped central hole, there is internal thread in upper connector (402) upper end center hole, is fixed with the thread protector (401) used in accumulating at the threaded upper ends of upper connector (402); A cable plug assembly (403) is had in the centre bore of upper connector (402) middle part; Center, middle part hole wall has axial groove, and plug stop pin (40304) one end of cable plug assembly (403) is in axial groove; In the middle of upper connector (402), there is internal thread the upper end of centre bore, pressure cap (404) external screw thread of annular is fixed on centre bore upper end in the middle of connector (402), and cable plug assembly (403) is fixed in the middle centre bore of upper connector (40402) by pressure cap (404); Cable plug assembly (403), through upper connector (402) lower center hole, body (406) centre bore and lower connector (408) centre bore, is connected with cable socket assembly (407) by cable (405);

Lower connector (408) has centre bore, and lower connector (408) centre bore is stepped central hole, has a cable socket assembly (407) in lower connector (408) lower center hole; Lower connector (408) lower center hole wall has axial groove, and socket stop pin (40701) one end of cable socket assembly (407) is in axial groove; Lower connector (408) lower center hole inwall has cannelure, the back-up ring (409) of annular is stuck in the inwall cannelure of lower connector (408) lower center hole, and cable socket assembly (407) is fixed in lower connector (408) lower center hole by back-up ring (409); Have external screw thread in lower connector (408) lower end, helmet (410) screw thread used in accumulating is fixed on the lower end of lower connector (408);

The wall of lower connector (408) external thread section there is seal groove, in seal groove, has O sealing ring; The wall of upper connector (402) internal thread segment there is sealing surface; Between horizontal wellbore logging tappet and when being connected between tappet with instrument tool, realize upper connector (402) and lower connector (408) by screw thread and O sealing ring and to be connected with link and to seal;

The outer wall of upper connector (402) there is annular groove, when removing well operations as tappet scene, the use of the bayonet socket of the rod elevator of lifting tappet;

Described cable plug assembly (403) is made up of holding screw (40301), plug insulation sleeve (40302), plug conducting ring (40303), plug stop pin (40304) and plug body (40305);

Plug body (40305) profile is notch cuttype cylinder, has centre bore, and there is internal thread the upper end of centre bore, is connected and fixed with the external screw thread of holding screw (40301) lower end; Plug body (40305) lower end cylinder cylindrical there is internal thread with axes normal, is connected and fixed with the external screw thread of plug stop pin (40304) lower end; 2 plug conducting rings (40303) and plug insulation sleeve (40302) are cylindrical toroidal, are fixed on plug body (40305) cylinder cylindrical stage casing successively; 2 plug conducting rings (40303) are connected to wire respectively, are connected with 2 plug conductive rings (40702) of cable socket assembly (407) by two-core cable (405).

3. the logging technique rod tube post of horizontal well bar conveying dynamic logging according to claim 2, is characterized in that,

Described cable socket assembly (407) is made up of socket stop pin (40701), plug conductive ring (40702), socket dead ring (40703), socket main body (40704), sealing and dustproof circle (40705) and socket pressure cap (40706);

Socket main body (40704) profile is cylinder, and inside have notch cuttype centre bore, there is internal thread lower end; Socket main body (40704) cylinder upper end cylindrical there is internal thread with axes normal, is connected and fixed with the external screw thread of socket stop pin (40701) lower end; 2 plug conductive rings (40702) are cylindrical toroidal for circular, socket dead ring (40703), are fixed in the endoporus in plug body (40305) cylinder stage casing successively; 2 plug conductive rings (40702) are connected to wire respectively, are connected with 2 plug conducting rings (40303) of cable plug assembly (403) by two-core cable (405); Socket pressure cap (40706) endoporus has cannelure, and sealing and dustproof circle (40705) is just contained in cannelure; There is external screw thread socket pressure cap (40706) cylindrical upper end, is connected and fixed with socket main body (40704) lower end internal thread.

4. the logging technique rod tube post of horizontal well bar conveying dynamic logging according to claim 1, is characterized in that,

Well head guiding device, primarily of casing coupling (1501), fixed pulley gripper shoe (1503) placed in the middle, fixed pulley (1504) placed in the middle, fixed pulley axis (1505), junction plate (1506), leading block (1507), leading block axle (1508), pivot pin (1509), leading block gripper shoe (1510), nut (1511), screw mandrel (1512) and bearing pin (1514) composition placed in the middle; Casing coupling (1501) is cylindrical shape, the outer wall of casing coupling (1501) is welded with two parallel fixed pulley gripper shoes (1503) rectangular placed in the middle, the centerline parallel of fixed pulley gripper shoe (1503) placed in the middle and casing coupling (1501); Be connected with a fixed pulley placed in the middle (1504) in the upper end of two fixed pulley gripper shoes (1503) placed in the middle by fixed pulley axis placed in the middle (1505), fixed pulley placed in the middle (1504) is in the centre of two fixed pulley gripper shoes (1503) placed in the middle; A screw mandrel joint (1513) is connected with by bearing pin (1514) in the bottom of two fixed pulley gripper shoes (1503) placed in the middle, screw mandrel joint (1513) cross section is circular or square, pin shaft hole is had in one end of screw mandrel joint (1513), have pin hole in the bottom of two fixed pulley gripper shoes (1503) placed in the middle, bearing pin (1514) is through the pin shaft hole of screw mandrel joint (1513) and two fixed pulley gripper shoe (1503) pin holes placed in the middle; Center screw is had at the other end of screw mandrel joint (15015), screw mandrel joint (1513) other end center screw internal fixtion has screw mandrel (1512), and the center line of screw mandrel joint (1513) and the center line of screw mandrel (1512) are on same straight line; Screw mandrel (15012) there is nut (15011); A sliding sleeve is had at the upper cover of screw mandrel (1512) in the bottom of nut (15011), sliding sleeve outer wall is symmetrically welded with two to ship and resell on another market, ship and resell on another market hole in the bottom of two leading block gripper shoes (1510), two ship and resell on another market insert two leading block gripper shoe (1510) bottoms respectively ship and resell on another market in hole;

Two leading block gripper shoes (1510) are rectangular flat board; There is pin hole the upper end of two leading block gripper shoes (1510) respectively, a leading block axle (1508) is had in the pin hole of two leading block gripper shoe (1510) upper ends, leading block axle (1508) is connected with leading block (1507), leading block (1507) is in the middle of two leading block gripper shoes (1510).

5. the logging technique rod tube post of horizontal well bar conveying dynamic logging according to claim 4, is characterized in that,

Pin hole is had at the middle part of two leading block gripper shoes (1510), pivot pin (1509) is had in the pin hole at two leading block gripper shoe (1510) middle parts, the pin hole of pivot pin (1509) through two leading block gripper shoe (1510) middle parts and the pin hole of junction plate (1506) one end, junction plate (1506) is connected to the middle part of two leading block gripper shoes (1510) by pivot pin (1509); There is pin shaft hole at fixed pulley gripper shoe (1503) middle part placed in the middle, and be installed with bearing pin in the pin shaft hole of fixed pulley gripper shoe (1503) placed in the middle, the other end of junction plate (1506) is connected to the two ends of bearing pin.

6. a horizontal well bar conveying dynamic logging method, it is characterized in that, the method is applied to the logging technique rod tube post of the horizontal well bar conveying dynamic logging according to any one of claim 1 to 5, and described horizontal well bar conveying dynamic logging method comprises the following steps:

First, former well casing post is tripped out, drifting, well-flushing;

Secondly, to enter in sleeve pipe under horizontal well bar conveying dynamic logging process pipe string, be from bottom to top: the test of oil pipe horn mouth, oil pipe, horizontal well hollow pump, packer, anti-apical organ, disjointed device, oil pipe, oil pipe receives well head always, the anti-apical organ of base sealed packer grappling, tubing string is thrown off from on-off connector;

3rd, under enter horizontal well bar conveying dynamic logging technique roofbolt: downhole instrument top connects flexible nipple, tappet, and the length of needs received by tappet always, and go up a root elevator bar most and connect cable head, downhole instrument two ends are connected to downhole instrument centralizer;

4th, well head guiding device is installed;

5th, cable is connected with cable head;

6th, pumping discharge opeing;

7th, adopt cable to remove and test;

Finally, cable, tappet, logger is tripped out.

7. horizontal well bar conveying dynamic logging method according to claim 6, is characterized in that, horizontal wellbore logging tappet onsite application method:

When carrying out logging operation, horizontal wellbore logging tappet under next root elevator bar connector connect logger, upper connector connects this device, needs many capable of being combined according to well logging, and go up a upper connector most and be connected with cable head, employing cable removes to be tested.

8. horizontal well bar conveying dynamic logging method according to claim 7, is characterized in that,

When carrying out logging operation, the needs according to well logging can adopt many horizontal wellbore logging tappets to be connected in series.Namely connect logger at the lower connector lower end screw thread of a horizontal wellbore logging tappet bottom, cable socket assembly is connected conducting with logger; Connect another root horizontal wellbore logging tappet in the upper end of horizontal wellbore logging tappet bottom, cable socket assembly is connected conducting with cable plug assembly; Going up most the upper connector threaded upper ends stube cable head of a horizontal wellbore logging tappet, cable head is connected conducting with the cable plug assembly going up most a horizontal wellbore logging tappet; Cable head top stube cable, to well head, adopts cable to remove and tests.

9. horizontal well bar conveying dynamic logging method according to claim 6, it is characterized in that, well head guiding device uses and comprises the following steps:

The leading block of well head guiding device is unloaded, the hole slot that cable has through leading block gripper shoe one end, installs leading block and rotary screw rod, leading block is moved inward, after making to there is certain distance between cable and working rig travelling block, payout can be descended; When the lower cable of needs, rotating nut, makes nut rotate to screw mandrel one end near screw mandrel joint; Due to fixed pulley gripper shoe placed in the middle, junction plate, between leading block gripper shoe and screw mandrel joint, form a quadrangle, make leading block gripper shoe parallel with fixed pulley gripper shoe placed in the middle, leading block gripper shoe drives leading block away from the top of casing coupling above well head; Now cable leaves above well head at the draught line of leading block; After under operation, cable starts, cable can avoid the friction that working rig travelling block avoids cable and working rig travelling block, prevents cable from wearing and tearing; Then, cable enters in well head through the guiding of fixed pulley placed in the middle, make cable can not with wellhead casing pipe or oil pipe friction, decrease the wearing and tearing of cable.