CN214787268U - Hanger combined structure for pump-out type well logging process - Google Patents

Abstract

The utility model provides a hanger integrated configuration for in pump-out type well logging technology. The hanger combined structure is formed by mutually connecting a lower hanger, a drilling tool for a drilling team, a pressure relief short joint, a drilling tool for the drilling team and an upper hanger which are sequentially arranged; the total design length of the lower suspension, the pressure relief short section and the upper suspension is changed from 13.98 meters of a traditional hanger combined structure to 2.7 meters. This hanger integrated configuration can show the rigidity intensity that reduces logging drilling tool protective sheath hanger, and the drilling crew of being convenient for is drilled down, shortens the structural length that the tool string external diameter is 161mm, follows structural reduction sticking probability, reduces the logging and meets and hinder the drifting probability. Meanwhile, by adding the damping device and adjusting the installation position of the pressure relief water hole, the vibration quantity of the instrument pump when the instrument pump is hung is reduced, the damage probability of the instrument is reduced, the maintenance cost of the instrument is reduced, and the success rate of one-time well logging is improved. And through the structural improvement of each subassembly of hanger, increased its portability, need not the crane and can realize the instrument shipment, reduce crane use cost.

Description

Hanger combined structure for pump-out type well logging process

Technical Field

The utility model relates to a logging hanger technical field especially relates to a hanger integrated configuration for in pump-out type well logging technology.

Background

With the improvement of the level of petroleum exploration and development, various complex wells such as ultra-deep wells, highly deviated wells, horizontal wells and the like are continuously generated, and the occurrence of the complex wells brings great difficulty to cable logging of open holes. In order to deal with the logging environment of a complex well, reduce the logging operation cost, control the logging safety risk and improve the logging timeliness and logging data acquisition rate of the complex well, a petroleum engineering technical researcher researches a novel logging technology, namely a pump-out logging technology. The greatest difference between pump-out logging and conventional logging is that no cable is used and no "wires" are used to bring the instrument to the target horizon. The technology is characterized in that a logging instrument is arranged in a drilling tool during logging, the logging instrument is conveyed to the bottom of a well through a drill rod, the logging instrument is pumped out of the drill rod through a mud pulse transmission instruction, meanwhile, the instrument is powered by a short joint with a battery, the downhole instrument performs data acquisition and stores data in a memory chip of the instrument, data measurement is completed in the process of lifting the drill rod, and after a well to be measured is finished, the instrument is lifted to the ground, the logging data are read from a memory and matched with the depth for use. The drill rod carrying the logging instrument inside needs to be connected by a hanger component structure, so that the drilling is convenient to convey in the well.

At present, as shown in fig. 1 to 7, the structural combination of the 5-inch hanger in the conventional pump-out logging process is formed by sequentially connecting a guide shoe (1.5 m), a first adjusting short section (1.09 m), a lower hanger (2.83 m), a second adjusting short section (1.88 m), a third adjusting short section (4.12 m), a drilling tool in a drilling rig, an upper hanger (1.68 m) and a variable wire (0.88 m).

However, the conventional hanger assembly has the following disadvantages: 1) the currently used 5-inch protective sleeve drill rod and hanger buckling structure is complicated, unified specification is not carried out, and the rigidity strength is overlarge; 2) the length of the protective sleeve and the hanger short section required by each time of entering the well is about 7, and the length of entering the well is up to 13.98 meters; the tool string is longer at the position with the maximum outer diameter of 161mm, for example, the length of the position with the maximum outer diameter of 161mm of the lower suspension reaches about 2.1 m, which is not beneficial to drilling; 3) the suspended pressure relief water hole under the release pump can fully act after the instrument is completely pumped out, the whole instrument is pushed by the pump pressure during the path of the release pump-out stroke, the instrument vibrates greatly under the continuous pumping action force, and the damage probability of the instrument can be obviously increased; 4) the lower suspension guide shoe is a space without a damping device, the instrument release pump is connected with the instrument by the inner step of the guide shoe when being blocked, and the damage probability of the instrument is increased; 5) the tail end of the lower suspension guide shoe is longer, and the function of guiding the drill to descend is achieved.

In view of the above, there is a need for an improved hanger assembly for use in pump-out logging applications that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hanger integrated configuration for in pump-out type well logging technology.

In order to realize the purpose of the utility model, the utility model provides a hanger combined structure used in the pump-out type well logging process, which is formed by mutually connecting a lower hanger, a drilling tool of a drilling team, a pressure relief short joint, a drilling tool of the drilling team and an upper hanger which are arranged in sequence;

the total design length of the lower suspension, the pressure relief short section and the upper suspension is less than 3 m.

As a further improvement of the utility model, the design length of the lower suspension is 1.2m, the outer diameter of the joint is phi 162 and 161mm, and the outer diameter of the minimum body is 125 mm; the lower suspension buckle is a drilling tool buckle and is used for being directly connected with drilling tools of a drilling team.

As a further improvement of the utility model, the lower suspension comprises a round head tail end processed into a round joint shape, so that the lower suspension has the function of guiding the lower drill; be provided with the guiding gutter on the button head tail end, realize that the instrument is done and is hung under and hang step department, mud can be through the guiding gutter earial drainage.

As the utility model discloses a further improvement, hang down still including installing in its inside damping device, the instrument release pump is sat and is hung damping device is last for reduce the instrument pump to sit and hang the vibrations volume in twinkling of an eye.

As a further improvement of the utility model, the design length of the pressure relief nipple is 0.5m, the outer diameter of the joint is phi 162mm, and the buckle type is a drilling tool buckle; and the pressure relief nipple is also provided with a plurality of water holes.

As a further improvement of the utility model, the hole size of the water hole of the pressure relief nipple is 20 mm; the access position of the pressure relief short joint is the lower suspension and the upper side of a single drilling tool.

As a further improvement, in the pressure release nipple joint, the water hole is provided with two, is located pressure release nipple joint symmetry both sides respectively for judge whether the instrument releases, still be used for doing the pressure contrast.

As a further improvement of the utility model, the design length of the upper suspension is 1.0m, the outer diameter of the joint is phi 162mm, and the buckle type is a drilling tool buckle.

As a further improvement of the utility model, the upper suspension is provided with a positioning pin and an upper suspension water hole.

As a further improvement, the damping device is a spring damping nipple.

The utility model has the advantages that:

the utility model provides a hanger integrated configuration for in pump-out type well logging technology, through improving current hanger structural technology, optimize the connection order of hanger integrated configuration after improving: hang down (1.2 meters) + drilling tool + pressure release nipple joint (0.5 meters) + drilling tool + hang up (1 meter), from this, the well logging nipple joint of going into has become 2.7 meters by original 13.98 meters, and this optimization modified hanger integrated configuration possesses following advantage:

1) the knot type of hanger has been standardized in unison for configuration optimization has increased application scope, only remains functional nipple joint, under the control of minimum cost, need not to change instrument structure in the pit, only needs 3 functional drilling tool nipple joints (hang on, the pressure release nipple joint hangs down), and remaining protective sheath can be through the 5 cun of drilling team field usage aggravate drilling rod encapsulation instrument. Compared with the traditional hanger combined structure (as shown in figures 1 to 7), the utility model discloses showing and reducing the drilling tool nipple joint, especially can reducing the length that the maximum external diameter is 161mm more than 3 meters, effectively reducing the rigidity intensity of logging drilling tool protective sheath hanger, be convenient for the drilling crew to get up and down the drilling; through shortening hanger integrated configuration, the instrument cluster external diameter is 161 mm's place promptly, reduces the sticking to the drill probability from structural, and the drilling tool of being convenient for is taken off, and the favourable improvement logging well section data is got the percentage of wholeness, reduces the logging and meets and hinder the drifting probability.

2) The tail end of the lower suspension is processed into a round joint shape, and a diversion trench is processed at the same time, so that the drilling passing property is improved; the damping device is arranged in the lower suspension, and the instrument release pump is hung on the damping device, so that the instantaneous vibration of the instrument pump is effectively reduced.

3) The utility model discloses in add a pressure release nipple joint, the pressure release nipple joint sets up the water hole punchhole of reasonable size, and the adjustment is accessed the position, for example, shift up to a drilling rod length, it hangs about position 10 meters to sit apart from the instrument, use standard cluster instrument as an example, 36.1 meters long instrument cluster, pump out about 26 meters during the release, the pump sending pressure most is shunted from the pressure release nipple joint, stroke about remaining 10 meters, can walk under less pressure, even left pressure is not enough to withdraw from the instrument completely, it can release the pump-out instrument completely to lift on the band pump (bore hole section 20 meters instrument cluster frictional resistance is far more than 10 meters instrument frictional resistance in the drilling tool).

4) According to instrument cluster length, carry out length optimization to each subassembly of hanger, rationally formulate nipple joint length, control nipple joint length about 1 meter, the portable transport of being convenient for improves instrument portability, need not the crane and can realize instrument shipment, reduces crane use cost.

5) Through increasing damping device and adjusting pressure release water hole mounted position, reduce the instrument and pump out the vibrations volume when sitting and hanging, reduce the impaired probability of instrument, reduce instrument cost of maintenance, improve one-time logging success rate.

6) This optimize modified hanger integrated configuration can show the use that reduces the protective sheath, effectively reduces the instrument cost of detecting a flaw, reduces the instrument of going into the well and improves well head packaging efficiency, improves logging construction ageing, and on average every well can practice thrift the ageing for 3 hours.

Drawings

FIG. 1 is a schematic diagram of a guide shoe in a conventional 5 "hanger assembly for use in a pump-out logging process.

FIG. 2 is a schematic diagram of a first adjusting sub in a conventional 5-inch hanger assembly for use in a pump-out logging process.

FIG. 3 is a schematic view of the underslung of a conventional 5 "hanger assembly used in pump-out logging.

FIG. 4 is a schematic diagram of a second adjusting sub in a conventional 5 "hanger assembly for use in a pump-out logging process.

FIG. 5 is a schematic diagram of a third adjusting sub in a conventional 5-inch hanger assembly for use in a pump-out logging process.

FIG. 6 is a schematic diagram of the upper suspension of a conventional 5 "hanger assembly used in pump-out logging.

FIG. 7 is a schematic diagram of a wire variation in a conventional 5 "hanger assembly used in a pump-out logging process.

Fig. 8 is a schematic structural diagram of an under-suspension in a hanger assembly for use in a pump-out logging process according to the present invention.

Fig. 9 is a schematic structural diagram of a pressure relief nipple in a hanger composite structure for use in a pump-out logging process.

Fig. 10 is a schematic structural diagram of an upper suspension in a suspension assembly for use in a pump-out logging process according to the present invention.

Fig. 11 is a schematic diagram of a sectional structure of a diversion trench in a hanger assembly structure for use in a pump-out logging process according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following embodiments describe the present invention in detail.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 8 to 10, the present invention provides a hanger assembly structure for pump-out logging process, which is formed by connecting a lower hanger, a drilling tool, a pressure relief short section, a drilling tool and an upper hanger, which are sequentially arranged; the total design length of the lower suspension, the pressure relief short section and the upper suspension is less than 3 m.

In the embodiment, the designed length of the lower suspension is 1.2m, the outer diameter of the joint is phi 162 and 161mm, and the outer diameter of the minimum body is 125 mm; the underslung buttons are tool buttons for connecting drill pipe strings of a drilling rig (as shown in fig. 8). The under-suspension includes a rounded tail end formed in a rounded joint shape and a shock-absorbing means (not shown) installed inside thereof. A diversion trench (the diversion trench has a cross section shape as shown in fig. 11) is arranged at the tail end of the round head; the cross section of the diversion trench is in a 6-symmetrical trench structure, the diversion trench is used for hanging the instrument at a lower hanging step, and slurry can be discharged through the diversion trench.

In the embodiment, the design length of the pressure relief short section is 0.5m, the outer diameter of the joint is phi 162mm, and the buckle type is a drilling tool buckle; two water holes are further formed in the pressure relief nipple. The eyelet size of the water hole of the pressure relief nipple is 20mm, and the pressure relief nipple is located on two symmetrical sides of the pressure relief nipple respectively and has the following functions: the first is to judge whether the instrument is released, and the second is to compare the pressure (as shown in fig. 9). The access position of the pressure relief short joint is the lower suspension and the upper side of a single drilling tool.

In this embodiment, the designed length of the upper suspension is 1.0m, the outer diameter of the joint is phi 162mm, and the button is a drill button. The upper suspension is provided with a positioning pin and a water hole (as shown in figure 10); wherein, the locating pin effect: fixing the instrument to prevent the shearing sleeve (arranged on the instrument) from rotating randomly; the effect of the water eye is as follows: the mud is convenient for the drilling crew to circulate the mud, and the pressure comparison is convenient to determine whether the instrument is successfully released.

Example 1

Referring to fig. 1 to 7, the structural combination of the 5-inch hanger in the conventional pump-out logging process is formed by sequentially connecting a guide shoe (1.5 m), a first adjusting short section (1.09 m), a lower hanger (2.83 m), a second adjusting short section (1.88 m), a third adjusting short section (4.12 m), a drilling tool, an upper hanger (1.68 m) and a variable wire (0.88 m).

As shown in FIG. 1, the length of the guide shoe is 1.5m, the outer diameter of the joint is phi 162 and 161mm, the outer diameter of the minimum body is 125mm, the inner drift diameter guide shoe is 65mm, and the rest are 75 mm. The outer diameter 161mm is 56cm in length.

As shown in fig. 2, the length of the adjusting nipple 1 is 1.09m, the buckle type is a flat buckle, the outer diameter of the joint is phi 162mm, and the outer diameter of the minimum body is 125 mm.

As shown in fig. 3, the length of the lower suspension is 2.83m, and the button type is a flat button.

As shown in fig. 4, the length of the adjusting nipple 2 is 1.88m, the button type is an NC50 drill button, the outer diameter of the joint is phi 162mm, and the minimum outer diameter of the body is 125 mm.

As shown in fig. 5, the length of the adjusting nipple 3 is 4.12m, the button type is an NC50 drill button, the outer diameter of the joint is phi 162mm, and the minimum outer diameter of the body is 125 mm.

As shown in fig. 6, the upper suspension has a length of 1.68m, the button type is an NC50 drill button, the joint outer diameter is phi 162mm, and the minimum body outer diameter is 125 mm.

As shown in figure 7, the length of the variable wire is 0.88m, the button type is a flat button, the outer diameter of the joint is phi 162mm, and the minimum outer diameter of the body is 125 mm.

However, the conventional hanger assembly has a complicated assembly, the length of the well is as long as 13.98 meters, and the total length of the maximum external diameter 161mm is as long as 3.1m, so that the hanger assembly has excessive rigidity and is not favorable for drilling. Meanwhile, in the hanger combination, the guide shoe has the defects that slurry can not be normally circulated, the bottom of the guide shoe is easily blocked by sand in a well, so that the instrument is failed to release, the lower hanger has the defects of overlarge rigid length, complex structure and nonstandard buckle type, and the upper hanger has the defects of the nonstandard buckle type, complex structure and overlarge rigid strength. And it has still used the adjustment nipple joint of three kinds of different specifications, has increased the rigidity intensity of this hanger integrated configuration.

Based on the defect that exists among the above-mentioned traditional hanger integrated configuration, please refer to fig. 8 to 10 and show, embodiment 1 of the utility model provides a hanger integrated configuration for in pump-out type well logging technology, it is formed by the lower suspension that sets up in order, drilling tool of well team, pressure release nipple joint, drilling tool of well team and last suspension interconnect.

Referring to fig. 8, the guiding shoe in the conventional hanger assembly structure of the present invention is modified into a lower hanger, the design length of the lower hanger is 1.2m, the outer diameter of the joint is phi 162 and 161mm, and the outer diameter of the minimum body is 125 mm.

The lower suspension buckle is converted into a drilling tool buckle from a flat buckle of a traditional guide shoe and is used for connecting drilling rods of a drilling team. The lower suspension comprises a round head tail end processed into a round joint shape and a damping device arranged in the round head tail end.

In the embodiment, a diversion trench is arranged on the round head tail end of the lower suspension; the diversion trench is of a 6-symmetrical trench structure in cross section shape and acts on: the mud is guided, and the mud is more favorably discharged to protect the instrument when the instrument is released.

The damping device is a spring damping short joint. During logging, the instrument release pump sits and hangs on the underhung damping device to reduce the amount of instantaneous vibration of the instrument pump.

Please refer to fig. 9, the utility model provides an among the hanger composite structure for in pump-out type well logging technology, a pressure release nipple joint has newly been add, the design length of pressure release nipple joint is 0.5m, connects the external diameter to be phi 162 mm. The type of the pressure relief nipple is a drilling tool button, and the type is NC40 (female button) NC41 (male button); the pressure relief short section is also provided with 2 water holes, as shown in fig. 9, wherein the distance from the first water hole to the female buckle is 30 cm; the second port is 40cm from the female button. The distance between the two water holes is 10 cm.

In the embodiment, the size of the hole of the water hole of the pressure relief short section is 20 mm; the access position of the pressure relief short joint is a lower suspension and the upper surface of a single drilling tool (from bottom to top).

Referring to fig. 10, in the hanger assembly structure for pump-out logging process provided by the present invention, the upper hanging structure is designed by re-optimization and improvement, the design length of the upper hanging structure is 1.0m, the outer diameter of the joint is phi 162mm, and the buckle type is a drill buckle. The upper suspension is provided with a positioning pin and a water hole, as shown in fig. 10. Wherein, the distance between the positioning pin and the female buckle is 28 cm; the distance between the water hole and the female button is 57 cm.

The utility model discloses in, with traditional guide shoe (1.5 m) + adjustment nipple joint (1.09 m) + hanger (2.83 m) + adjustment nipple joint (1.88 m) + adjustment nipple joint (4.12 m) + drilling rig + go up and hang (1.68 m) + 7 hanger nipple joints of change silk (0.88 m), the optimal design becomes and only needs 3 functional drilling rig nipple joints (last hanging, the pressure release nipple joint, hang down), all the other protective sheaths can aggravate drilling rod encapsulation instrument through the 5 cun of drilling rig field usage. In the utility model, the logging well-entering short section is changed from 13.98 meters of the traditional hanger combined structure into 2.7 meters, the number and the length of the well-entering drilling tool short section are greatly reduced, especially the length of the maximum outer diameter of 161mm can be reduced by more than 3 meters, the rigidity strength of the bottom of the drilling tool is reduced, and the drilling is convenient; the well logging method can effectively reduce the well logging probability of well dredging and save a large amount of time efficiency for a drilling team.

Meanwhile, in the optimized and improved hanger combined structure, the tail end of the lower hanger is processed into a circular joint shape, and a diversion trench is processed at the same time, so that the drilling passing property is obviously improved; the damping device is arranged in the lower suspension, and the instrument release pump is hung on the damping device, so that the instantaneous vibration of the instrument pump is remarkably reduced. Through the damping device who hangs under increasing and the pressure release water hole mounted position in the adjustment pressure release nipple joint, the vibrations volume when reducing the instrument pump and taking the string reduces the impaired probability of instrument, reduces instrument cost of maintenance, improves the success rate of once logging well. And, according to instrument cluster length, rationally formulate nipple joint length, control nipple joint length about 1 meter, portable and transport improve the instrument portability, need not the crane and can realize the instrument shipment, reduce crane use cost. From this, among this optimize modified hanger composite construction, can show the use that reduces the protective sheath, reduce the instrument cost of detecting a flaw, reduce the instrument of going into the well and improve well head packaging efficiency, improve logging construction ageing, on average every well can practice thrift the ageing for 3 hours.

To sum up, the utility model provides a hanger integrated configuration for in pumping out formula logging technology. The hanger combined structure is formed by mutually connecting a lower hanger, a drilling tool for a drilling team, a pressure relief short joint, a drilling tool for the drilling team and an upper hanger which are sequentially arranged; the total design length of the lower suspension, the pressure relief short section and the upper suspension is changed from 13.98 meters of a traditional hanger combined structure to 2.7 meters. This hanger integrated configuration can show the rigidity intensity that reduces logging drilling tool protective sheath hanger, and the drilling crew of being convenient for is drilled down, shortens the structural length that the tool string external diameter is 161mm, follows structural reduction sticking probability, reduces the logging and meets and hinder the drifting probability. Meanwhile, by adding the damping device and adjusting the installation position of the pressure relief water hole, the vibration quantity of the instrument pump when the instrument pump is hung is reduced, the damage probability of the instrument is reduced, the maintenance cost of the instrument is reduced, and the success rate of one-time well logging is improved. And through the structural improvement of each subassembly of hanger, increased its portability, need not the crane and can realize the instrument shipment, reduce crane use cost.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A hanger assembly for use in a pump-out logging process, comprising: the hanger combined structure used in the pump-out type well logging process is formed by mutually connecting a lower hanger, a drilling tool for a drilling team, a pressure relief short joint, the drilling tool for the drilling team and an upper hanger which are sequentially arranged;

the total design length of the lower suspension, the pressure relief short section and the upper suspension is less than 3 m.

2. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the designed length of the lower suspension is 1.2m, the outer diameter of the joint is phi 162 and 161mm, and the outer diameter of the minimum body is 125 mm; the lower suspension buckle is a drilling tool buckle and is used for being directly connected with drilling tools of a drilling team.

3. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the lower suspension comprises a round head tail end processed into a round joint shape, so that the lower suspension has the function of guiding a drill; be provided with the guiding gutter on the button head tail end, the section of guiding gutter is 6 symmetrical groove structures for realize that the instrument is done and is hung under and hang step department, mud can be through the guiding gutter earial drainage.

4. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the lower suspension also comprises a damping device arranged in the lower suspension, and the instrument release pump is hung on the damping device to reduce the instantaneous vibration of the instrument pump.

5. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the design length of the pressure relief short section is 0.5m, the outer diameter of the joint is phi 162mm, and the buckling type is a drilling tool buckle; and the pressure relief nipple is also provided with a plurality of water holes.

6. The hanger assembly of claim 5 for use in a pump-out logging process, wherein: the size of an eyelet of a water hole of the pressure relief short section is 20 mm; the access position of the pressure relief short joint is the lower suspension and the upper side of a single drilling tool.

7. The hanger assembly of claim 5 for use in a pump-out logging process, wherein: in the pressure release nipple joint, the water holes are provided with two and are respectively located the symmetrical both sides of pressure release nipple joint for judge whether the instrument releases, still be used for doing the pressure contrast.

8. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the designed length of the upper suspension is 1.0m, the outer diameter of the joint is phi 162mm, and the buckle type is a drilling tool buckle.

9. The hanger assembly of claim 1 for use in a pump-out logging process, wherein: the upper suspension is provided with a positioning pin and an upper suspension water hole.

10. The hanger assembly of claim 4 for use in a pump-out logging process, wherein: the damping device is a spring damping short joint.

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