CN214532868U - Quick response automatic pressure control throttle system for drilling - Google Patents

Abstract

The utility model provides an automatic accuse pressure choke system of quick response drilling well, the back pressure entry, first pipeline, first tee bend, the second pipeline, the cross, the third pipeline, six-way, first manual dull and stereotyped valve floodgate, the fourth pipeline, the second tee bend, the manual dull and stereotyped valve floodgate of second, the fifth pipeline, the sixth pipeline, first back pressure export, the seventh pipeline, mass flow meter, first electronic dull and stereotyped valve floodgate, the electronic dull and stereotyped valve floodgate of second, the eighth pipeline, first electronic choke valve, the electronic dull and stereotyped valve floodgate of third, the electronic dull and stereotyped valve floodgate of fourth, the tenth pipeline, the electronic choke valve of second, the electronic dull and stereotyped valve floodgate of seventh, the electronic dull and stereotyped valve floodgate of eighth, the third tee bend, the eleventh pipeline, the cooperation of repressing entry and the electronic dull and stereotyped choke valve of ninth. Through automatic accuse pressure throttle pipe system of quick response drilling well, not only can satisfy the basic demand of accuse pressure drilling well, but also can effectively save equipment area, the well application range of extension accuse pressure drilling.

Description

Quick response automatic pressure control throttle system for drilling

Technical Field

The utility model belongs to the technical field of and oil drilling equipment, in particular to automatic accuse pressure throttle pipe system of quick response drilling.

Background

With the continuous development of petroleum exploration and development in China to deep complex stratums, the problem of safe drilling with a narrow density window becomes more and more prominent, and the problem becomes a technical bottleneck of drilling construction in many oil producing areas. The narrow-density window drilling problem is a main reason for long drilling cycle, frequent accidents and underground complexity of offshore and land deep wells, ultra-deep wells, high-temperature and high-pressure wells and the like, and is a problem to be solved urgently. The current pressure-controlled drilling technology is the most effective means for solving the difficult problem of safe drilling under the conditions of narrow windows such as surge, leakage, collapse, surge and leakage coexistence.

An automatic throttling pipeline system is key equipment for realizing a pressure control drilling technology. At present, a common pressure-controlled drilling automatic throttling pipeline system is large in size and is not beneficial to application of the pipeline system when the area of a well site is limited.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a to prior art not enough, provide an automatic accuse pressure throttle pipe system of quick response well drilling, not only can satisfy the basic demand of accuse pressure well drilling, but also can effectively save equipment area, the well drilling application scope is pressed in the extension accuse.

In order to solve the technical problem, the utility model discloses a technical scheme is: a quick response drilling automatic pressure control throttle pipe system comprises a back pressure inlet, a first tee joint connected with the back pressure inlet through a first pipeline, a four-way joint connected with the first tee joint through a second pipeline, a six-way joint connected with the four-way joint through a third pipeline, a first manual flat valve brake arranged on the third pipeline, a second tee joint connected with the six-way joint through a fourth pipeline, a fifth pipeline connected with the second tee joint, a first back pressure outlet connected with the fifth pipeline through a sixth pipeline, a seventh pipeline arranged between the second tee joint and the six-way joint, a mass flow meter arranged on the seventh pipeline, a first electric flat valve brake and a second electric flat valve brake arranged on the seventh pipeline and positioned on two sides of the mass flow meter, an eighth pipeline arranged between the six-way joint and the four-way joint, a first electric throttle valve arranged on the eighth pipeline, a third electric flat valve brake and a fourth electric flat valve brake arranged on the eighth pipeline and positioned on two sides of the first electric throttle valve The hydraulic control system comprises an electric flat plate valve gate, a tenth pipeline arranged between a six-way valve and a first tee joint, a second electric throttle valve arranged on the tenth pipeline, a seventh electric flat plate valve gate arranged on the tenth pipeline and positioned between the six-way valve and the second electric throttle valve, an eighth electric flat plate valve gate arranged on the tenth pipeline and positioned between the second electric throttle valve and the first tee joint, a third tee joint arranged on the tenth pipeline and positioned between the second electric throttle valve and the eighth electric flat plate valve gate, a pressure compensating inlet connected with the third tee joint through an eleventh pipeline and a ninth electric flat plate throttle valve arranged on the eleventh pipeline.

Furthermore, the device also comprises a second back pressure outlet which is connected with the fifth pipeline through a twelfth pipeline.

Further, the mass flow meter is a coriolis mass flow meter.

Furthermore, the electric throttle valve further comprises a ninth pipeline arranged between the six-way valve and the four-way valve, a third electric throttle valve arranged on the ninth pipeline, and a fifth electric flat valve gate and a sixth electric flat valve gate which are arranged on the ninth pipeline and positioned on two sides of the third electric throttle valve.

Compared with the prior art, the beneficial effects of the utility model are as follows: first, through the cooperation of back pressure entry, first pipeline, first tee bend, second pipeline, cross, third pipeline, six-way, first manual dull and stereotyped valve brake, fourth pipeline, second tee bend, fifth pipeline, sixth pipeline, first back pressure export, seventh pipeline, mass flow meter, first electronic dull and stereotyped valve brake, second electronic dull and stereotyped valve brake, eighth pipeline, first electronic choke valve, third electronic dull and stereotyped valve brake, fourth electronic dull and stereotyped valve brake, tenth pipeline, second electronic choke valve, seventh electronic dull and stereotyped valve brake, eighth electronic dull and stereotyped valve brake, third tee bend, eleventh pipeline, the accurate control of casing pressure to the oil gas well head in the pressure drilling process not only can be realized, have safety, laborsaving, simple and convenient, high-efficient and small characteristics.

And secondly, because technical scheme, still include the second back pressure export that is connected with the fifth pipeline through the twelfth pipeline, so can go wrong to first back pressure export or fifth pipeline, through the cooperation of twelfth pipeline, second back pressure mouth, continue to realize and be connected between the fifth pipeline to carry out the back pressure better and handle, so technical scheme better stability, reliability have.

Thirdly, because the technical scheme of the utility model still including set up the ninth pipeline between six-way and cross, set up the third electronic choke valve on the ninth pipeline and set up on the ninth pipeline and be located the fifth electronic dull and stereotyped valve floodgate and the sixth electronic dull and stereotyped valve floodgate of third electronic choke valve both sides, so can be in the eighth pipeline, when arbitrary one part in first electronic choke valve, third electronic dull and stereotyped valve floodgate, the fourth electronic dull and stereotyped valve floodgate breaks down, through the cooperation of ninth pipeline, third electronic choke valve, fifth electronic dull and stereotyped valve floodgate, sixth electronic dull and stereotyped valve floodgate, continue to make the device measure drilling fluid outlet flow and density, be convenient for judge overflow and leakage fast, in time handle, strengthen the drilling safety; thereby enhancing the stability and reliability of the device.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view of the process flow of the present invention.

In the figure: 1. a first back pressure outlet; 2. a second back pressure outlet; 3. a second tee joint; 4. a first electrically operated plate valve gate; 5. a mass flow meter; 6. a second manual plate valve gate; 7. a second electric flat valve gate; 8. a seventh electric flat valve gate; 9. six-way; 10. a third electric flat valve gate; 11. a fifth electric flat valve gate; 12. a first manual plate valve gate; 13. a third electric throttle valve; 14. a first electric throttle valve; 15. a fourth electric flat valve gate; 16. four-way connection; 17. a sixth electric flat valve gate; 18. a first tee joint; 19. an eighth electric flat valve gate; 20. a third tee joint; 21. a second electric throttle valve; 22. a ninth electric flat throttle valve; 23. a back pressure inlet; 24. a pressure compensating inlet; 25. a first pipeline; 26. an eleventh line; 27. a second pipeline; 28. a tenth line; 29. a ninth line; 30. a third pipeline; 31. an eighth line; 32. a fourth pipeline; 33. a seventh line; 34. a fifth pipeline; 35. a twelfth pipeline; 36. a sixth pipeline.

Detailed Description

For a better understanding of the present invention, the contents of the present invention will be further clarified below by referring to examples, but the present invention is not limited to the following examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.

As shown in FIG. 1, the automatic pressure control and throttle system for the rapid response drilling comprises a back pressure inlet 23, a first tee joint 18 connected with the back pressure inlet through a first pipeline 25, a four-way joint 16 connected with the first tee joint 18 through a second pipeline 27, a six-way joint 9 connected with the four-way joint 16 through a third pipeline 30, a first manual flat valve gate 12 arranged on the third pipeline 30, a second tee joint 3 connected with the six-way joint through a fourth pipeline 32, a second manual flat valve gate 6 arranged on the fourth pipeline 32, a fifth pipeline 34 connected with the second tee joint 3, a first back pressure outlet 1 connected with the fifth pipeline 34 through a sixth pipeline 36, a seventh pipeline 33 arranged between the second tee joint 3 and the six-way joint 9, a mass flow meter 5 arranged on the seventh pipeline 33, a first electric flat valve gate 4 and a second electric flat valve gate 7 which are arranged on the seventh pipeline 33 and positioned at two sides of the mass flow meter 5, An eighth line 31 provided between the six-way 9 and the four-way 16, a first electric throttle valve 14 provided on the eighth line 31, a third electric flat valve gate 10 and a fourth electric flat valve gate 15 provided on the eighth line 31 and located on both sides of the first electric throttle valve 14, a tenth line 28 provided between the six-way 9 and the first three-way 18, a second electric throttle valve 21 provided on the tenth line 28, a seventh electric flat valve gate 8 provided on the tenth line 28 and located between the six-way 9 and the second electric throttle valve 21, an eighth electric flat valve gate 19 provided on the tenth line 28 and located between the second electric throttle valve 21 and the first three-way 18, a third three-way 20 provided on the tenth line 28 and located between the second electric throttle valve 21 and the eighth electric flat valve gate 19, a pressure compensating inlet 24 connected to the third three-way through an eleventh line 26, and a ninth electric flat throttle valve 22 provided on the eleventh line 26.

And a second back pressure outlet 2 connected to the fifth line via a twelfth line 35.

The mass flow meter 5 is a coriolis mass flow meter.

The four-way valve further comprises a ninth pipeline 29 arranged between the six-way valve 9 and the four-way valve 16, a third electric throttle valve 13 arranged on the ninth pipeline 29, and a fifth electric flat valve gate 11 and a sixth electric flat valve gate 17 which are arranged on the ninth pipeline 29 and located on two sides of the third electric throttle valve 13.

Specifically, through the cooperation of the back pressure inlet, the first pipeline, the first tee joint, the second pipeline, the four-way joint, the third pipeline, the six-way joint, the first manual flat valve gate, the fourth pipeline, the second tee joint, the fifth pipeline, the sixth pipeline, the first back pressure outlet, the seventh pipeline, the mass flow meter, the first electric flat valve gate, the second electric flat valve gate, the eighth pipeline, the first electric throttle valve, the third electric flat valve gate, the fourth electric flat valve gate, the tenth pipeline, the second electric throttle valve, the seventh electric flat valve gate, the eighth electric flat valve gate, the third tee joint, the eleventh pipeline, the pressure compensating inlet and the ninth electric flat throttle valve, not only can the accurate control of the wellhead casing pressure of the oil-gas well in the pressure drilling process be realized, but also the characteristics of safety, labor saving, simplicity, convenience, high efficiency and small volume are realized.

Because technical scheme, still include the second back pressure export that is connected through twelfth pipeline and fifth pipeline, so can go back to first back pressure mouth or when the fifth pipeline breaks down, through the cooperation of twelfth pipeline, second back pressure mouth, continue to realize and be connected between the fifth pipeline to carry out the back pressure better and handle, so technical scheme better stability, reliability have.

Because the technical scheme of the utility model still include the ninth pipeline of setting between six-way and cross, set up third electronic choke valve on the ninth pipeline and set up on the ninth pipeline and be located fifth electronic dull and stereotyped valve brake and the electronic dull and stereotyped valve brake of sixth of third electronic choke valve both sides, so can be in eighth pipeline, first electronic choke valve, third electronic dull and stereotyped valve brake, when arbitrary one part in the electronic dull and stereotyped valve brake of fourth breaks down, through the cooperation of ninth pipeline, third electronic choke valve, fifth electronic dull and stereotyped valve brake, sixth electronic dull and stereotyped valve brake, continue to make the device measure drilling fluid export flow and density, be convenient for judge overflow and leakage fast, in time handle, reinforcing drilling safety; thereby enhancing the stability and reliability of the device.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (4)

1. A quick response automatic pressure control throttle system for drilling is characterized in that: comprises a back pressure inlet (23), a first tee joint (18) connected with the back pressure inlet through a first pipeline (25), a four-way joint (16) connected with the first tee joint (18) through a second pipeline (27), a six-way joint (9) connected with the four-way joint (16) through a third pipeline (30), a first manual flat valve brake (12) arranged on the third pipeline (30), a second tee joint (3) connected with the six-way joint through a fourth pipeline (32), a second manual flat valve brake (6) arranged on the fourth pipeline (32), a fifth pipeline (34) connected with the second tee joint (3), a first back pressure outlet (1) connected with the fifth pipeline (34) through a sixth pipeline (36), a seventh pipeline (33) arranged between the second tee joint (3) and the six-way joint (9), a mass flowmeter (5) arranged on the seventh pipeline (33), A first electric flat valve gate (4) and a second electric flat valve gate (7) which are arranged on a seventh pipeline (33) and are positioned at two sides of the mass flow meter (5), an eighth pipeline (31) which is arranged between the six-way (9) and the four-way (16), a first electric throttle valve (14) which is arranged on the eighth pipeline (31), a third electric flat valve gate (10) and a fourth electric flat valve gate (15) which are arranged on the eighth pipeline (31) and are positioned at two sides of the first electric throttle valve (14), a tenth pipeline (28) which is arranged between the six-way (9) and the first three-way (18), a second electric throttle valve (21) which is arranged on the tenth pipeline (28), a seventh electric flat valve gate (8) which is arranged on the tenth pipeline (28) and is positioned between the six-way (9) and the second electric throttle valve (21), and an eighth electric flat valve gate (19) which is arranged on the tenth pipeline (28) and is positioned between the second electric throttle valve gate (21) and the first flat-way, A third tee joint (20) arranged on the tenth pipeline (28) and positioned between the second electric throttling valve (21) and the eighth electric flat valve gate (19), a pressure supplementing inlet (24) connected with the third tee joint through an eleventh pipeline (26), and a ninth electric flat throttling valve (22) arranged on the eleventh pipeline (26).

2. The rapid response drilling automatic pressure control choke system of claim 1, wherein: and a second back pressure outlet (2) connected with the fifth pipeline through a twelfth pipeline (35).

3. The rapid response drilling automatic pressure control choke system of claim 2, wherein: the mass flowmeter (5) is a Coriolis mass flowmeter.

4. The rapid response drilling automatic pressure control choke system of claim 3, wherein: the four-way valve further comprises a ninth pipeline (29) arranged between the six-way valve (9) and the four-way valve (16), a third electric throttle valve (13) arranged on the ninth pipeline (29), and a fifth electric flat plate valve gate (11) and a sixth electric flat plate valve gate (17) which are arranged on the ninth pipeline (29) and located on two sides of the third electric throttle valve (13).

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