CN202810680U - Well drilling combination device using double-wall drill pipe - Google Patents
Well drilling combination device using double-wall drill pipe Download PDFInfo
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- CN202810680U CN202810680U CN201220527245.6U CN201220527245U CN202810680U CN 202810680 U CN202810680 U CN 202810680U CN 201220527245 U CN201220527245 U CN 201220527245U CN 202810680 U CN202810680 U CN 202810680U
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Abstract
The utility model relates to a well drilling combination device using a double-wall drill pipe. The well drilling combination device using the double-wall drill pipe mainly solves the problems in the prior art that the using amount of construction drilling fluid is large and drilling cost is high due to the fact that a conventional drill pipe is used to carry out constructions for a large displacement horizontal well and pressure control well drilling. The well drilling combination device using the double-wall drill pipe is characterized in that an outlet end of a drilling liquid distributor is connected with the double-wall drill pipe, and the double-wall drill pipe penetrates through a rotary blowout preventer and a blowout preventer group which are mounted on the mouth of a well. The double-wall drill pipe on the lower portion of the mouth of the well is disposed downward in a sleeve. Pressurizing pistons are connected between the double-wall drill pipe, and the outer walls of the pressurizing pistons are arranged on the inner walls of the sleeve in a sealed mode. The tail end of the double-wall drill pipe is connected with a drilling liquid conversion joint and a downhole while-drilling instrument in sequence. The downhole while-drilling instrument is connected with a drill bit. The lower portion of a drilling liquid control center is connected with annular gaps between the double-wall drill pipe and the sleeve through pipe lines. An inner barrel of the double-wall drill pipe is communicated with an outer hole channel of the drilling liquid conversion joint. According to the well drilling combination device using the double-wall drill pipe can achieve closed-loop recycling of the drilling liquid, small in using amount of the drilling liquid, and low in cost.
Description
Technical field
The utility model relates to a kind of drilling rig in the petroleum drilling technology field, particularly a kind of well series locking device that adopts double-wall drill pipe.
Background technology
At present, the construction that conventional drilling rod carries out extended horizontal well and controlled pressure drilling is mainly used in drilling well both at home and abroad, takes bits, meticulous pressure control in control, the down-hole of the pressure of the drill, saves the aspects such as cost and material, does not more and more satisfy the requirement of site operation.In the drilling process, the drilling fluid consumption is large, and drilling cost is high.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the construction drilling fluid consumption that the conventional drilling rod of the application that exists in the background technology carries out extended horizontal well and controlled pressure drilling to reach greatly the high problem of drilling cost, and provide a kind of well series locking device that adopts double-wall drill pipe, this adopts the well series locking device of double-wall drill pipe, can realize the closed loop cycle of drilling fluid, the drilling fluid consumption is few, and cost is low.
The invention for solving the technical problem can reach by following technical solution: the well series locking device of this employing double-wall drill pipe comprises the drilling fluid distributor, rotating blowout preventer, blowout preventer set, drilling fluid control center, charged piston, the downhole drill instrument, drill bit, rotating blowout preventer places blowout preventer set top, described drilling fluid distributor arrival end connects respectively the drilling fluid conveyance conduit, drilling fluid control center, described drilling fluid export distributor end connects double-wall drill pipe, double-wall drill pipe has double-wall drill pipe urceolus and double-wall drill pipe inner core, and double-wall drill pipe passes rotating blowout preventer and the blowout preventer set that is installed in well head; Be put in the sleeve pipe under the double-wall drill pipe of well head bottom; Connect charged piston between double-wall drill pipe, the sealing of charged piston outer wall places internal surface of sleeve pipe; The double-wall drill pipe tail end connects drilling fluid crossover sub, downhole drill instrument successively; The downhole drill instrument connects drill bit; Drilling fluid control central lower pipeline connects the annular space between double-wall drill pipe and sleeve pipe; The outer duct UNICOM of double-wall drill pipe inner core and drilling fluid crossover sub.
The utility model is compared with the above-mentioned background technology can have following beneficial effect: the well series locking device of this employing double-wall drill pipe is owing to adopt said structure, owing to used double-wall drill pipe, and down-hole drilling fluids is very short in the length of the cycle of Open-Hole Section, most drilling fluid all circulates in double-wall drill pipe, therefore, can accurately carry out the measuring and calculating of down-hole frictional resistance, realize meticulous pressure control; Drilling fluid control center is by injecting drilling fluid to the annular space between sleeve pipe and the drilling tool, the downhole pressure increasing piston is exerted pressure, thereby advancing of stable propelling lower drilling tool pressurizeed to drill bit, because the distance in drilling fluid crossover sub and shaft bottom is very short, therefore well solved the well cleaning problems.Improve the drilling fluid utilization rate, reduced down-hole circulation volume, saved the drilling fluid consumption, saved drilling cost.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
Among the figure: 1-drilling fluid distributor, 2-rotating blowout preventer, 3-blowout preventer set, 4-double-wall drill pipe, 5-drilling fluid control center, 6-sleeve pipe, 7-double-wall drill pipe urceolus, 8-double-wall drill pipe inner core, the 9-charged piston, 10-drilling fluid crossover sub, 11-downhole drill instrument, 12-drill bit.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
As shown in Figure 1, this adopts the well series locking device of double-wall drill pipe, comprise drilling fluid distributor 1, rotating blowout preventer 2, blowout preventer set 3, drilling fluid control center 5, charged piston 9, downhole drill instrument 11, drill bit 12, rotating blowout preventer 2 places blowout preventer set 3 tops, described drilling fluid distributor 1 arrival end connects respectively the drilling fluid conveyance conduit, drilling fluid control center 5, described drilling fluid distributor 1 port of export connects double-wall drill pipe 4, double-wall drill pipe 4 has double-wall drill pipe urceolus 7 and double-wall drill pipe inner core 8, and double-wall drill pipe 4 passes rotating blowout preventer 2 and the blowout preventer set 3 that is installed in well head; The double-wall drill pipe of well head bottom is put in the sleeve pipe 6 for 4 times and creeps into, 4 of double-wall drill pipes are connected with charged piston 9, the sealing of charged piston 9 outer walls places sleeve pipe 6 inwalls, charged piston 9 and the effective airtight supercharging of sleeve pipe 6 interior wall energys realize that stable pressurization creeps into thereby can promote advancing of lower drilling tool by pressurization; Double-wall drill pipe 4 tail ends connect drilling fluid crossover sub 10, downhole drill instrument 11 successively, and downhole drill instrument 11 connects drill bit 12; Transformation by drilling fluid crossover sub 10 realizes the conversion of drilling fluid runner, thereby so that downhole drill instrument 11 can work; Drilling fluid control center 5 lower pipelines connect the annular space of double- wall drill pipe 4 and 6 of sleeve pipes, carry out supercharging by drilling fluid control center 5 injection fluid in the annular space; The outer duct of double-wall drill pipe inner core 8 and drilling fluid crossover sub 10 UNICOM realizes the conversion of drilling fluid runner.
When this adopts the well series locking device of double-wall drill pipe to use, drilling fluid enters the drilling fluid distributor after at first entering drilling fluid control filling, enter the double-wall drill pipe annular space by the drilling fluid distributor, by locating to enter behind the drilling fluid crossover sub with boring instrument, can normally use to guarantee existing downhole drill instrument (rotary steering, LWD etc.).In the process of creeping into, drilling fluid is direct circulation at the drill bit place, Fluid Circulation in drilling tool and the bore hole annulus is to the drilling fluid crossover sub, and Transport of Drilling Cutting In A enters the double-wall drill pipe inner core by its guide functions, and the shunting action by the drilling fluid distributor derives at last.
The downhole pressure increasing piston is connected with drilling tool, and outer surface of piston and internal surface of sleeve pipe sealing can be born high pressure, and can be rotated with drilling tool.Drilling fluid control center is by injecting drilling fluid to the annular space between sleeve pipe and the drilling tool, the downhole pressure increasing piston is exerted pressure, thereby advancing of stable propelling lower drilling tool pressurizeed to drill bit, because the distance in drilling fluid crossover sub and shaft bottom is very short, therefore well solved the well cleaning problems.Simultaneously, if the downhole sleeve pipe is lowered to a part of tail pipe, then in the process of creeping into, can realize the expansion of tail pipe by the propelling of charged piston.
Because used double-wall drill pipe, and down-hole drilling fluids is very short in the length of the cycle of Open-Hole Section, most drilling fluid all circulates in double-wall drill pipe, therefore, can accurately carry out the measuring and calculating of down-hole frictional resistance, realizes meticulous pressure control.The pressure of circular flow and charged piston in the well is being controlled at drilling fluid control center, can accurately monitor the downhole fluid situation of change simultaneously, has at utmost avoided down-hole overflow, leakage and the generation of the series of complex situation that causes.
Claims (1)
1. well series locking device that adopts double-wall drill pipe, comprise drilling fluid distributor (1), rotating blowout preventer (2), blowout preventer set (3), drilling fluid control center (5), charged piston (9), downhole drill instrument (11), drill bit (12), rotating blowout preventer (2) places blowout preventer set (3) top, described drilling fluid distributor (1) arrival end connects respectively the drilling fluid conveyance conduit, drilling fluid control center (5), it is characterized in that: described drilling fluid distributor (1) port of export connects double-wall drill pipe (4), double-wall drill pipe (4) has double-wall drill pipe urceolus (7) and double-wall drill pipe inner core (8), and double-wall drill pipe (4) passes rotating blowout preventer (2) and the blowout preventer set (3) that is installed in well head; Be put under the double-wall drill pipe of well head bottom (4) in the sleeve pipe (6); Connect charged piston (9) between double-wall drill pipe (4), the sealing of charged piston (9) outer wall places sleeve pipe (6) inwall; Double-wall drill pipe (4) tail end connects drilling fluid crossover sub (10), downhole drill instrument (11) successively; Downhole drill instrument (11) connects drill bit (12); Drilling fluid control center (5) lower pipelines connects the annular space between double-wall drill pipe (4) and sleeve pipe (6); Double-wall drill pipe inner core (8) and the outer duct of drilling fluid crossover sub (10) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220527245.6U CN202810680U (en) | 2012-10-15 | 2012-10-15 | Well drilling combination device using double-wall drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220527245.6U CN202810680U (en) | 2012-10-15 | 2012-10-15 | Well drilling combination device using double-wall drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810680U true CN202810680U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220527245.6U Expired - Fee Related CN202810680U (en) | 2012-10-15 | 2012-10-15 | Well drilling combination device using double-wall drill pipe |
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| Country | Link |
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| CN (1) | CN202810680U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234648A (en) * | 2014-07-18 | 2014-12-24 | 东北石油大学 | Underground real-time control system for density of drilling fluid |
| CN104373045A (en) * | 2014-11-03 | 2015-02-25 | 中国石油大学(北京) | Tangential injection type swirl flow jet flow pump drill bit of double-wall drilling rod reverse circulating drilling well |
| CN104405292A (en) * | 2014-11-03 | 2015-03-11 | 中国石油大学(北京) | Double-wall drill pipe countercirculation well drilling fixed guide impeller type rotational flow and jet flow pump drill bit |
| CN107780854A (en) * | 2017-08-30 | 2018-03-09 | 河南豫中地质勘察工程公司 | A kind of ground major diameter fast pore-creating drilling equipment is with pipe booster body |
| CN108316892A (en) * | 2018-03-01 | 2018-07-24 | 中国矿业大学(北京) | In drilling fluid into it is interior go out formula oil drilling system |
| CN109441425A (en) * | 2018-11-20 | 2019-03-08 | 常州大学 | A kind of horizontal well double-wall drill pipe system large rock-carrying ability measurement device and measuring method |
| CN113250616A (en) * | 2021-06-28 | 2021-08-13 | 中国石油大学(北京) | Deepwater pressure control drilling system |
-
2012
- 2012-10-15 CN CN201220527245.6U patent/CN202810680U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234648A (en) * | 2014-07-18 | 2014-12-24 | 东北石油大学 | Underground real-time control system for density of drilling fluid |
| CN104373045A (en) * | 2014-11-03 | 2015-02-25 | 中国石油大学(北京) | Tangential injection type swirl flow jet flow pump drill bit of double-wall drilling rod reverse circulating drilling well |
| CN104405292A (en) * | 2014-11-03 | 2015-03-11 | 中国石油大学(北京) | Double-wall drill pipe countercirculation well drilling fixed guide impeller type rotational flow and jet flow pump drill bit |
| CN107780854A (en) * | 2017-08-30 | 2018-03-09 | 河南豫中地质勘察工程公司 | A kind of ground major diameter fast pore-creating drilling equipment is with pipe booster body |
| CN108316892A (en) * | 2018-03-01 | 2018-07-24 | 中国矿业大学(北京) | In drilling fluid into it is interior go out formula oil drilling system |
| CN108316892B (en) * | 2018-03-01 | 2020-04-10 | 中国矿业大学(北京) | Drilling fluid internal-in and internal-out type petroleum drilling system |
| CN109441425A (en) * | 2018-11-20 | 2019-03-08 | 常州大学 | A kind of horizontal well double-wall drill pipe system large rock-carrying ability measurement device and measuring method |
| CN109441425B (en) * | 2018-11-20 | 2022-02-11 | 常州大学 | Method for measuring rock carrying capacity of horizontal well double-wall drill pipe system |
| CN113250616A (en) * | 2021-06-28 | 2021-08-13 | 中国石油大学(北京) | Deepwater pressure control drilling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20211015 |