CN206600155U - A kind of Continuous Circulation Drilling System - Google Patents

A kind of Continuous Circulation Drilling System Download PDF

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Publication number
CN206600155U
CN206600155U CN201720112150.0U CN201720112150U CN206600155U CN 206600155 U CN206600155 U CN 206600155U CN 201720112150 U CN201720112150 U CN 201720112150U CN 206600155 U CN206600155 U CN 206600155U
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China
Prior art keywords
drilling
preventer
control
wellhead assembly
way
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Active
Application number
CN201720112150.0U
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Chinese (zh)
Inventor
张桂林
刘晓兰
张晓明
牛洪波
唐波
唐洪林
徐云龙
夏文安
张晓林
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Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Original Assignee
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
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Application filed by Sinopec Oilfield Service Corp, Sinopec Shengli Petroleum Engineering Corp, Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp filed Critical Sinopec Oilfield Service Corp
Priority to CN201720112150.0U priority Critical patent/CN206600155U/en
Application granted granted Critical
Publication of CN206600155U publication Critical patent/CN206600155U/en
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Abstract

The utility model is related to a kind of Continuous Circulation Drilling System, mainly shackle device, hydraulic lohg-rang control device and gate valve, choke valve are constituted on drilling rod hanging apparatus, wellhead assembly, drilling fluid flow control apparatus, drilling tool, and the wellhead assembly includes rotating blowout preventer, full normal circulation outlet, envelope preventer, upper four-way, clamp hanger, well-control blowout prevention preventer, lower four-way and the casing head being sequentially connected from top to bottom;Shackle device is supported the use with drilling rod hanging apparatus on the drilling tool;The drilling fluid flow control apparatus is made up of standpipe manifold and high pressure line interface;The gate valve and choke valve are separately positioned on each mouth of pipe of wellhead assembly;The hydraulic lohg-rang control device is controlled by fluid pressure line connection corresponding with the hydraulic selector composition of various preventers, hanger and choke valve on wellhead assembly respectively.This system realizes the continuous circulation of drilling fluid, improves the success rate and security of Complex formation drilling operation.

Description

A kind of Continuous Circulation Drilling System
Technical field
The utility model is related to answering in oil-gas drilling, geological prospecting, mine probing, water well drilling technical field The Continuous Circulation Drilling System of miscellaneous structure well.
Background technology
Oil drilling is occupied and its critical role in the oil industry.With the development of Oil/gas Well technology, New well drilling skill The application of art makes the complex structural wells such as ultradeep well, extended reach well, long horizontal sections drill successfully.However, conventional drilling operation process In, need first to stop circulation of drilling fluid in well when making up a joint, turn on pump recovers circulation again after connection is newly single.So making up a joint It is front and rear because of the stopping and recovery of circulation of drilling fluid, pressure oscillation is larger in annular space, often brings landwaste sinking, cave-in, suppresses A series of underground problems such as pump bit freezing, overflow and leakage.Stratum is unstable, narrow Density Window, long horizontal sections, big displacement, depth In well drilling well, this down hole problem that underground pressure wave movable property is given birth to because opening, caused by termination of pumping and accident are especially prominent.
Continuous cyclic drilling uses continuous circulation system both at home and abroad at present(CCS)With continuous circulating valve two ways, the former Structural combination product is big and stands in drilling floor surface;Development cost is high, studies and using limited.The continuous circulating valve quantity of the latter is more, even Connect screw thread often, sealing position is more, hidden danger increases therewith;It can cause and be acted on valve seat during circulating valve pressure increase Confined pressure increase, cause circulating valve to rotate.Accordingly, it would be desirable to which a kind of new Continuous Circulation Drilling System, can preferably be protected Demonstrate,prove the continuous circulation of drilling fluid in drilling process.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of Continuous Circulation Drilling System.The system using triple preventers, Bypass conduit constitutes wellhead assembly and drilling fluid flow control apparatus, controls to prevent in wellhead assembly by hydraulic lohg-rang control device In the switch and drilling fluid flow control apparatus of spray apparatus runner conversion come realize drilling fluid during make up a joint can not termination of pumping and In continuous recurrent state.
The technical solution of the utility model is:
A kind of Continuous Circulation Drilling System, mainly by drilling rod hanging apparatus, wellhead assembly, drilling fluid flow control apparatus, Shackle device, hydraulic lohg-rang control device and gate valve, choke valve composition on drilling tool, wherein:The wellhead assembly is included from upper Under be sequentially connected rotating blowout preventer, normal circulation outlet, full envelope preventer, upper four-way, clamp hanger, well-control blowout prevention use Preventer, lower four-way and casing head, lower four-way are provided with choke manifold;Shackle device and drilling rod hanging apparatus are supporting on the drilling tool Use;The drilling fluid flow control apparatus is made up of standpipe manifold and high pressure line interface, and is followed with the high-pressure side of upper four-way Endless tube, which converges, to be connected;The gate valve and choke valve are separately positioned on each mouth of pipe of wellhead assembly;The hydraulic lohg-rang control device Controlled respectively by fluid pressure line connection corresponding with the hydraulic selector composition of various preventers, hanger and choke valve on wellhead assembly System.
Such scheme further comprises:
In clamp hanger and well-control blowout prevention preventer is sealed with inversion half is additionally provided between preventer.
Shackle device uses a set of single-acting hydraulic tong on described drilling tool.
The utility model is based on the characteristics of realistic feasibility is strong, and wellhead assembly is constituted using triple preventers, bypass conduit With drilling fluid flow control apparatus, the switch and drilling fluid stream of preventer in wellhead assembly are controlled by hydraulic lohg-rang control device Into control device, flow direction is changed to realize the continuous circulation of drilling fluid.It ensure that and drilling well is remained during making up a joint The continuous circulation of liquid, efficiently solve the problems, such as because circulation of drilling fluid interrupt and caused by many downhole safeties.This for stratum not There is provided a kind of strong for the Holes of Complicated Wells drilling wells such as stable well, narrow Density Window well, long horizontal sections well, extended reach well and deep-well Technical support.The down-hole pressure caused by termination of pumping, turn on pump can be effectively overcome to fluctuate, the underground reduced caused by pressure oscillation is complicated Situation and accident.
Brief description of the drawings
Fig. 1 is a kind of Continuous Circulation Drilling System overall structure diagram.
Fig. 2 is wellhead assembly and the combination signal of drilling fluid flow control apparatus in another Continuous Circulation Drilling System Figure.
1. shackle device on wellhead assembly, 2. drilling fluid flow control apparatus, 3. drilling tools, 4. hydraulic remotes control dress Put, 5. drill strings, 6. rotating blowout preventers, 7. full envelope preventers, four-way, 9. clamp hangers, 10. half envelope preventers, 11. on 8. Well-control blowout prevention preventer, 12. times four-ways, 13. normal circulation outlets, 14. standpipe manifolds, 15. high-pressure sides circulation manifold, 16. high pressure line, 17. choke manifolds, 18, casing head.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1:Referring to the drawings 1, a kind of Continuous Circulation Drilling System, mainly by drilling rod hanging apparatus(Do not drawn in figure Go out), wellhead assembly 1, drilling fluid flow control apparatus 2, shackle device 3, hydraulic lohg-rang control device 4 and gate valve, section on drilling tool Flow valve group into.Wherein:The wellhead assembly 1 includes rotating blowout preventer 6, the normal circulation outlet being sequentially connected from top to bottom 13rd, full envelope preventer 7, upper four-way 8, clamp hanger 9, well-control blowout prevention preventer 11, lower four-way 12 and casing head 18, lower four Logical 12 are provided with choke manifold 17.Shackle device 3 is supported the use with drilling rod hanging apparatus on the drilling tool.The drilling fluid flow direction control Device 2 processed is made up of standpipe manifold 14 and the interface of high pressure line 16, and is connected with the high-pressure side circulation manifold 15 of upper four-way 8.Institute State gate valve and choke valve is separately positioned on each mouth of pipe of wellhead assembly.The hydraulic lohg-rang control device passes through hydraulic tube respectively Road connection control corresponding with the hydraulic selector composition of various preventers, hanger and choke valve on wellhead assembly.
Embodiment 2:Referring to the drawings 1 and 2, on the basis of above-described embodiment 1, used in clamp hanger 9 and well-control blowout prevention The envelope preventer 10 of inversion half is additionally provided between preventer 11.
Further, shackle device uses a set of single-acting hydraulic tong on described drilling tool.
The normal direct circulation in normal drilling, when be drilled one it is single need to make up a joint when, now
(1) above carry on drilling tool 5 to clamp hanger 9 and reduce circulation discharge capacity;
(2)Then circulating with choke manifold 17 is opened;
(3)The suspension flashboard closed in clamp hanger 9 simultaneously sits extension drilling tool;
(4)Close and be inverted half envelope preventer 10;
(5)Close rotating blowout preventer 6;
(6)Close normal circulation outlet 13;
(7)Open high-pressure side circulation manifold 15;
(8)The clamp closed in clamp hanger 9;
(9)Drilling tool 5 is dismantled with shackle device on drilling tool 3(Thread between clamp hanger 9 and full envelope preventer 7)And Above carry about 0.20m;
(10)Close the direct circulation path of standpipe manifold 14;
(11)Drilling tool 5 to its joint is above carried to be entirely located on full envelope preventer 7(Under rotating blowout preventer 6);
(12)Close full envelope preventer 7;
(13)Open normal circulation outlet 13;
(14)Open rotating blowout preventer 6;
(15)Act drilling tool 5 and jointed rod is newly single;
(16)By just connected it is new it is single under be put into well head, to its joint by rotating blowout preventer 6 and positioned at full envelope blowout prevention On device 7;
(17)Close rotating blowout preventer 6;
(18)Open the direct circulation path of standpipe manifold 14;
(19)Open full envelope preventer 7;
(20)Decentralization drilling tool is connected with drilling tool make-up in well and with shackle device 3 or top driving device, linked closely;
(21)Close high-pressure side circulation manifold 15;
(22)Open and be inverted half envelope preventer 10;
(23)Clamp are unclamped, drilling tool is above carried and opens hanger 9;
(24)Open normal circulation outlet 13;
(25)Open rotating blowout preventer 6;
(26)Choke manifold 17 is closed, discharge capacity is improved and recovers drilling.
The advantage for carrying out drilling well using above-mentioned Continuous Circulation Drilling System is:
1. eliminating conventional drilling operation to make up a joint the middle pressure oscillation because stopping, caused by turn on pump, borehole wall mistake can be prevented effectively from Surely, the generation for the down-hole accident that landwaste sedimentation is caused.
2. application Continuous Circulation Drilling System can set up stable annular pressure gradient in whole Open-Hole Section, it is to avoid well Leakage, the generation of well kick accident.
3. Continuous Circulation Drilling System uses ground preventer group, simple in construction, easy for installation, floor space is not take up, And be remote control, it is safe and reliable, efficient, also allow for operating personnel's operation.
4. Continuous Circulation Drilling System is more to utilize existing preventer, four-way, pipeline, gate valve and remote control Deng reducing the research and development of new equipment.

Claims (3)

1. a kind of Continuous Circulation Drilling System, mainly by drilling rod hanging apparatus, wellhead assembly, drilling fluid flow control apparatus, brill Shackle device, hydraulic lohg-rang control device and gate valve, choke valve composition on tool, it is characterised in that:The wellhead assembly is included certainly It is upper and under be sequentially connected rotating blowout preventer, normal circulation outlet, envelope preventer, upper four-way, clamp hanger, well control are prevented entirely Spray preventer, lower four-way and casing head, lower four-way are provided with choke manifold;Shackle device and drilling rod hanging apparatus on the drilling tool Support the use;The drilling fluid flow control apparatus is made up of standpipe manifold and high pressure line interface, and with the high pressure of upper four-way Side circulation manifold connection;The gate valve and choke valve are separately positioned on each mouth of pipe of wellhead assembly;The hydraulic remote control Device connects by the way that fluid pressure line is corresponding with the hydraulic selector composition of various preventers, hanger and choke valve on wellhead assembly respectively Connect control.
2. a kind of Continuous Circulation Drilling System as claimed in claim 1, it is characterised in that:In clamp hanger and well-control blowout prevention Half envelope preventer is inverted with being additionally provided between preventer.
3. a kind of Continuous Circulation Drilling System as claimed in claim 1 or 2, it is characterised in that:Spiral-lock is unloaded on described drilling tool It is a set of single-acting hydraulic tong to put.
CN201720112150.0U 2017-02-07 2017-02-07 A kind of Continuous Circulation Drilling System Active CN206600155U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720112150.0U CN206600155U (en) 2017-02-07 2017-02-07 A kind of Continuous Circulation Drilling System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720112150.0U CN206600155U (en) 2017-02-07 2017-02-07 A kind of Continuous Circulation Drilling System

Publications (1)

Publication Number Publication Date
CN206600155U true CN206600155U (en) 2017-10-31

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Application Number Title Priority Date Filing Date
CN201720112150.0U Active CN206600155U (en) 2017-02-07 2017-02-07 A kind of Continuous Circulation Drilling System

Country Status (1)

Country Link
CN (1) CN206600155U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108278092A (en) * 2018-03-01 2018-07-13 中国矿业大学(北京) Well mouth rotary commutation disengaging drill-in fluid and blowout prevention integral type oil drilling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108278092A (en) * 2018-03-01 2018-07-13 中国矿业大学(北京) Well mouth rotary commutation disengaging drill-in fluid and blowout prevention integral type oil drilling system
CN108278092B (en) * 2018-03-01 2020-05-08 中国矿业大学(北京) Well head rotary reversing drilling liquid inlet and outlet and blowout prevention integrated petroleum drilling system

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