CN202990841U - Free piston type impact drilling system - Google Patents

Free piston type impact drilling system Download PDF

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Publication number
CN202990841U
CN202990841U CN 201220585763 CN201220585763U CN202990841U CN 202990841 U CN202990841 U CN 202990841U CN 201220585763 CN201220585763 CN 201220585763 CN 201220585763 U CN201220585763 U CN 201220585763U CN 202990841 U CN202990841 U CN 202990841U
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CN
China
Prior art keywords
pipeline
oil
cylinder
injection valve
air
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Active
Application number
CN 201220585763
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Chinese (zh)
Inventor
贾朋
陈水源
许朝辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJIAN SHUANG HUAN ENERGY TECHNOLOGY CO., LTD.
Original Assignee
QUANZHOU TWINDISC ENERGY TECHNOLOGY Co Ltd
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Priority to CN 201220585763 priority Critical patent/CN202990841U/en
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Publication of CN202990841U publication Critical patent/CN202990841U/en
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Abstract

The utility model discloses a free piston type impact drilling system which comprises an air pipeline, a free piston type engine and a drilling bit comprising an impact boring bit, wherein the free piston type engine comprises a fuel cabin, a cylinder body and a throat pipe; a balance piston is arranged in the fuel cabin; the upper end of the fuel cabin is communicated with the air pipeline from the ground; the lower end of the fuel cabin is communicated with an oil suction pipeline and an oil overflow pipeline respectively; an oil spraying pump is connected to the oil suction pipeline; an oil overflow valve is connected to the oil overflow pipeline; the tail ends of the oil suction pipeline and the oil overflow pipeline are communicated with an oil spraying valve; the oil spraying valve comprises an oil spraying valve shell; an oil spraying valve core and an oil spraying valve seat are arranged in the oil spraying valve shell; the outer end of the oil spraying valve core is connected with a control cam; the oil spraying valve seat corresponds to the throat pipe; the air pipeline is arranged above the throat pipe and is connected with an air filter; the upper end of the cylinder body is connected with an air inlet pipeline and an air exhaust pipe; the throat pipe is communicated with the air inlet pipeline; and an air inlet air valve is arranged at a joint of the air inlet pipeline and the cylinder body.

Description

Free-piston type percussion drilling system
Technical field
The utility model relates to a kind of oil/gas drilling system, relates in particular to a kind of free-piston type percussion drilling system.
Background technology
In existing drilling technology, the power resources of downhole tool mainly contain two kinds, a kind of is by the electric power of cable transfer to the down-hole, a kind of is power from circulating fluid, wherein the power of circulating fluid is the high-power power source of commonly using the most, can be used for driving turbine, helicoid hydraulic motor, also can carry out various downhole operations by promoting reciprocating piston.Which kind of power source no matter, be all the energy that consumes ground be cost.
The utility model content
The utility model provides a kind of free-piston type percussion drilling system that can save energy consumption for deficiency.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
a kind of free-piston type percussion drilling system, comprise air pipe line, free piston engine and contain the drill bit that impacts bore bit, it is characterized in that, free piston engine comprises fuel compartment, cylinder body and trunnion, be provided with dummy piston in fuel compartment, the fuel compartment upper end is connected with air pipe line from ground, the fuel compartment lower end is communicated with respectively inlet line and oil spilling pipeline, be connected with injection pump on inlet line, be connected with spill valve on the oil spilling pipeline, the end of inlet line and oil spilling pipeline is communicated with injection valve jointly, injection valve comprises the injection valve shell, be provided with injection valve spool and injection valve valve seat in the injection valve shell, injection valve spool outer end is connected with the control cam, the injection valve valve seat is corresponding with trunnion, the trunnion top is provided with air pipe line, be connected with air filter in the air pipe line of trunnion top, described cylinder body upper end is connected with air inlet pipeline and stack, trunnion is connected with air inlet pipeline, and the junction of air inlet pipeline and cylinder body is provided with intake valve, and the junction of stack and cylinder body is provided with exhaust valve, be provided with piston in cylinder body, be provided with returning spring between piston and cylinder body diapire, contain the drill bit that impacts bore bit and comprise drill bit, be fixedly connected with in the middle of drill bit and impact the bore bit cover, impact the middle impact bore bit that is provided with of bore bit cover, impact bore bit and piston and be fixedly linked.
According to described free-piston type percussion drilling system, it is characterized in that, there is eccentric distance e between the center line of described impact bore bit and the center line of described drill bit.
Extensive use along with the air drilling technology, the oxygen-enriched environment of down-hole can provide certain condition for the application of fuel oil type motor (being free piston engine), the utility model is put into the down-hole with the fuel oil type explosive motor, for down-hole equipment provides power, the consumption of therefore having saved Ground Energy Sources.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In accompanying drawing:
1, air pipe line; 2, free piston engine; 3, contain the drill bit that impacts bore bit.
201, fuel compartment; 202, dummy piston; 203, inlet line; 204, injection pump; 205, spill valve; 206, oil spilling pipeline; 207, injection valve; 208, control cam; 209, air filter; 210, trunnion; 211, air inlet pipeline; 212, intake valve; 213, exhaust valve; 214, stack; 215, piston; 216, returning spring; 217, injection valve spool; 218, injection valve valve seat; 219, injection valve shell; 220, cylinder body.
301, impact bore bit; 302, impact the bore bit cover; 303, drill bit.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
a kind of free-piston type percussion drilling system, as shown in Figure 1, comprise air pipe line 1, free piston engine 2 and contain the drill bit 3 that impacts bore bit, free piston engine 2 comprises fuel compartment 201, cylinder body 220 and trunnion 210, be provided with dummy piston 202 in fuel compartment 201, fuel compartment 201 upper ends are connected with air pipe line 1 from ground, fuel compartment 201 lower ends are communicated with respectively inlet line 203 and oil spilling pipeline 206, be connected with injection pump 204 on inlet line 203, be connected with spill valve 205 on oil spilling pipeline 206, the end of inlet line 203 and oil spilling pipeline 206 is communicated with injection valve 207 jointly, injection valve 207 comprises injection valve shell 219, be provided with injection valve spool 217 and injection valve valve seat 218 in injection valve shell 219, injection valve spool 217 outer ends are connected with controls cam 208, injection valve valve seat 218 is corresponding with trunnion 210, trunnion 210 tops are provided with air pipe line 1, be connected with air filter 209 in the air pipe line 1 of trunnion 210 tops, described cylinder body 220 upper ends are connected with air inlet pipeline 211 and stack 214, trunnion 210 is connected with air inlet pipeline 211, air inlet pipeline 211 is provided with intake valve 212 with the junction of cylinder body 220, stack 214 is provided with exhaust valve 213 with the junction of cylinder body 220, be provided with piston 215 in cylinder body 220, be provided with returning spring 216 between piston 215 and cylinder body 220 diapires, contain the drill bit 3 that impacts bore bit and comprise drill bit 303, be fixedly connected with in the middle of drill bit 303 and impact bore bit cover 302, be provided with in the middle of impact bore bit cover 302 and impact bore bit 301, impact bore bit 301 and piston 215 and be fixedly linked.There is eccentric distance e between the center line of the center line of described impact bore bit 301 and described drill bit 303.
The utility model is a kind of system that utilizes free piston engine to carry out percussion drilling, by the down-hole free piston engine with contain the drill bit two parts that impact bore bit and form, free piston engine includes the fuel compartment that balances each other with downhole environment pressure and the fueling injection equipment of Stroke Control, contain the drill bit that impacts bore bit includes certain eccentric throw with drill axis impact bore bit and impact bore bit cover, free piston engine is connected by screw thread with the impact bore bit.
In the utility model, free piston engine comprises fuel compartment 201, dummy piston 202, inlet line 203, injection pump 204, spill valve 205, oil spilling pipeline 206, injection valve 207, controls cam 208, air filter 209, trunnion 210, air inlet pipeline 211, intake valve 212, exhaust valve 213, stack 214, piston 215, returning spring 216.Wherein, fuel compartment 201 is arranged on the top of whole instrument, fuel compartment 201 inside are equipped with dummy piston 202, dummy piston 202 is divided into two the separate cavity volumes in up and down with fuel compartment 201, the top cavity volume is connected with air pipe line 1 from ground, be full of fuel in the cavity volume of bottom, dummy piston 202 can move up and down in fuel compartment 201 freely, with the pressure of balance top cavity volume and bottom cavity volume; Injection pump 204, spill valve 205 and injection valve 207 are arranged on fuel compartment 201 belows, injection pump 204 passes through inlet line 203 constantly from the interior extraction fuel of fuel compartment 201, when injection valve 207 is closed, the fuel that injection pump 204 extracts flows back to fuel compartment 201 by spill valve 205, oil spill pipe 206, when injection valve 207 was opened, the fuel that injection pump 204 extracts sprayed in trunnion 210 via injection valve 207; Enter trunnion 210 after air process air filter 209 filtrations from ground, with the air inlet pipeline 211 that enters motor after the fuel mix that sprays into via injection valve 207; Intake valve 212, exhaust valve 213 and injection valve spool 217 are controlled by certain sequential is unified by controlling cam 208; After expansion stroke was completed, piston 215 began compression stroke under the effect of returning spring 216.
In traditional percussion drilling system, the drill bit whole shaft bottom of impacting, impact force one regularly, active area is large, the effect of fractured rock is limited, uses in the utility model to contain the drill bit that impacts bore bit and comprise and impact bore bit 301, impact that bore bit overlaps 302, drill bit 303.Wherein, impact bore bit 301 and be arranged on drill bit 303 inside, and be threaded connection together reciprocating with piston 215, there is eccentric distance e between the center line of impact bore bit 301 and the center line of drill bit 303, impact bore bit 301 and cause stress to concentrate on the shaft bottom circumference take e as radius in the process that drill bit 303 rotates, the broken rock of auxiliary drill bit 303.
The utility model is the power resources that are different from the downhole tool of electric power, drilling fluid power, and the direct output reciprocating motion of free piston engine does not need conversion links, and therefore, gross efficiency is high than electric power, the power-actuated reciprocating motion downhole tool of drilling fluid; Adopt and impact bore bit as the parts that impact rock, impact rock with solid drill and compare that active area is little, effect pressure is large, rock stress that cause is concentrated large, therefore the crushing effect of rock is obvious, impact in addition the eccentric e that exists between bore bit axis and drill axis the area coverage of impacting bore bit is increased, improved on the whole the catalase effect in shaft bottom.

Claims (2)

1. free-piston type percussion drilling system, comprise air pipe line (1), free piston engine (2) and contain the drill bit (3) that impacts bore bit, it is characterized in that, free piston engine (2) comprises fuel compartment (201), cylinder body (220) and trunnion (210), be provided with dummy piston (202) in fuel compartment (201), fuel compartment (201) upper end is connected with air pipe line (1) from ground, fuel compartment (201) lower end is communicated with respectively inlet line (203) and oil spilling pipeline (206), be connected with injection pump (204) on inlet line (203), be connected with spill valve (205) on oil spilling pipeline (206), the end of inlet line (203) and oil spilling pipeline (206) is communicated with injection valve (207) jointly, injection valve (207) comprises injection valve shell (219), be provided with injection valve spool (217) and injection valve valve seat (218) in injection valve shell (219), injection valve spool (217) outer end is connected with controls cam (208), injection valve valve seat (218) is corresponding with trunnion (210), trunnion (210) top is provided with air pipe line (1), be connected with air filter (209) in the air pipe line (1) of trunnion (210) top, described cylinder body (220) upper end is connected with air inlet pipeline (211) and stack (214), trunnion (210) is connected with air inlet pipeline (211), air inlet pipeline (211) is provided with intake valve (212) with the junction of cylinder body (220), stack (214) is provided with exhaust valve (213) with the junction of cylinder body (220), be provided with piston (215) in cylinder body (220), be provided with returning spring (216) between piston (215) and cylinder body (220) diapire, contain the drill bit (3) that impacts bore bit and comprise drill bit (303), be fixedly connected with in the middle of drill bit (303) and impact bore bit cover (302), impact middle being provided with of bore bit cover (302) and impact bore bit (301), impact bore bit (301) and be fixedly linked with piston (215).
2. free-piston type percussion drilling according to claim 1 system, is characterized in that, has eccentric distance e between the center line of the center line of described impact bore bit (301) and described drill bit (303).
CN 201220585763 2012-11-08 2012-11-08 Free piston type impact drilling system Active CN202990841U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220585763 CN202990841U (en) 2012-11-08 2012-11-08 Free piston type impact drilling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220585763 CN202990841U (en) 2012-11-08 2012-11-08 Free piston type impact drilling system

Publications (1)

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CN202990841U true CN202990841U (en) 2013-06-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936998A (en) * 2012-11-08 2013-02-20 泉州市双环能源科技有限公司 Free piston type percussion drilling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102936998A (en) * 2012-11-08 2013-02-20 泉州市双环能源科技有限公司 Free piston type percussion drilling system
CN102936998B (en) * 2012-11-08 2015-09-23 泉州市双环能源科技有限公司 Free-piston type percussion drilling system

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 362000 Fujian city of Quanzhou province Quanzhou economic and Technological Development Zone auspicious Road No. 577 San C Business Center Building 2 layer

Patentee after: FUJIAN SHUANG HUAN ENERGY TECHNOLOGY CO., LTD.

Address before: 362000 A, exhibition Town, Licheng District, Quanzhou, Fujian

Patentee before: Quanzhou Twindisc Energy Technology Co., Ltd.