CN204024609U - Play long well section perforation gun apparatus - Google Patents

Play long well section perforation gun apparatus Download PDF

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Publication number
CN204024609U
CN204024609U CN201420470899.9U CN201420470899U CN204024609U CN 204024609 U CN204024609 U CN 204024609U CN 201420470899 U CN201420470899 U CN 201420470899U CN 204024609 U CN204024609 U CN 204024609U
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China
Prior art keywords
well
preventer
slip
perforating gun
gun
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CN201420470899.9U
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Chinese (zh)
Inventor
张庆生
强彦龙
刘晶
王伟燕
赵健光
刘真真
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China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
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China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
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Priority to CN201420470899.9U priority Critical patent/CN204024609U/en
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Publication of CN204024609U publication Critical patent/CN204024609U/en
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Abstract

The utility model discloses a kind of long well section perforation gun apparatus, belong to oil exploitation Perforating Techniques field.Rise long well section perforation gun apparatus comprise well head snubbing serving device and application tube pipe nipple tool string, well head snubbing serving device by traveling slip, upper stationary slip, annular preventer, balance pressure release four-way, entirely seal preventer, raise pipe nipple, lower stationary slip, triple ram preventer and jacking system form; Tubing nipple tool string, is made up of plug, tubing nipple, fishing tool.The utility model solves conventional snubbing serving device and plays long well section perforating gun at well head, owing to sealing perforating gun, causes OIH gas and easily reveals, and kill-job mode must be adopted to play the technological deficiency of perforating gun.The utility model achieves snubbing serving and plays long well section perforating gun, the pollution that when effectively prevent perforation, kill-job causes low pressure reservoir.

Description

Play long well section perforation gun apparatus
Technical field
The utility model has related to long well section perforation gun apparatus, belongs to oil exploitation Perforating Techniques field.
Background technology
During oil gas well completion operation, be balance down-hole pressure, prevent gas blowout accident, well killing fluid kill-job need be adopted, because well killing fluid is chemical agent, easily pollute reservoir, affect Oil/gas Well output.Particularly development late stage, the well that strata pressure is lower, well killing fluid is easily missed into stratum, easilier pollutes reservoir.In order to reduce the pollution to reservoir, usually needing to adopt snubbing serving, namely when not pouring into well killing fluid, utilizing well head snubbing serving device to play lower tubular column by force and carrying out operation.
Snubbing serving basic functional principle utilizes calker plugging tubing string inner passage, utilize wellhead blowout preventor plugging tubing string and wellbore annulus external channel, lower tubular column is played by force under water booster system controls, rely on rubber core of lubricator to embrace tubular column main body and realize sealing, thus realize the object playing lower tubular column under no killing well, not open flow condition.Existing snubbing serving technique is the annular preventer movable sealing oil pipe utilizing snubbing serving device, traveling slip and stationary slip alternation, and coordinates hoisting system fluid cylinder, plays lower tubular column at well head.And in perforating oil gas well operation process, due to needs propagation of explosion between rifle and rifle, upper lower contact inside communicates, rifle inside also has irregular gun rack to fill, shoot away hole rear lance and be covered with eyelet again, this just causes the inside and outside all not easily shutoff of perforating gun string, causes the oil gas of Oil/gas Well to be revealed, there is construction safety hidden danger.In addition because gun perforation process needs correlation aperture layer position to penetrate out continuously, there is again strict requirement, to ensure perforating effect to the precision of perforation and quality from bottom to top.This just causes doing any transformation to perforating gun string, and as increased blind pipe between rifle and rifle, the body of a gun increases sealing tool etc. outward, part oil-gas Layer all can be caused to keep away and penetrate, affect gas well output.Therefore will realizing no killing well, to play perforating gun technology difficulty large.
Existing no killing well plays perforating gun technique, can only play shorter perforating gun, and general perforating gun string only has several meters ~ tens meters.For the perforating gun string of several meters, usually adopt well head to bleed off pressure or a small amount of liquid kill-job, Quick rifle goes out the alternative of well head, has completed rifle operation.For the perforating gun string of tens meters, by investigating more external completion service companies, adopting well head that lubricator is installed, coordinating crane that perforating gun is once proposed well head.Due to the impact by lubricator safe construction and crane sling height, the perforating gun string of tens meters at most also can only be played.But the gas storage well built for usually utilizing Depleted Reservoirs; well-completing process requires at utmost to protect low pressure reservoir; improve individual well production capacity again; therefore usually disposable spud section of penetrating up to hundreds of rice; this just causes existing snubbing serving technique all cannot solve this problem; the mode of kill-job can only be adopted to play long well section perforating gun, be unfavorable for the protection of oil-gas Layer in Completion Operations.
Summary of the invention
The purpose of this utility model overcomes the snubbing serving device that prior art exists to play perforating gun sealing difficulty, and the oil gas of Oil/gas Well is easily revealed, the technological deficiency that construction safety hidden danger is large, provide a kind of simple, adapt to wide play long well section perforation gun apparatus.
The utility model is realized by the following technical programs:
The utility model comprises well head snubbing serving device and application tube pipe nipple tool string, wherein: well head snubbing serving device by traveling slip, upper stationary slip, annular preventer, balance pressure release four-way, entirely seal preventer, raise pipe nipple, lower stationary slip, triple ram preventer and jacking system form.Traveling slip is arranged on the top rail center of jacking system, upper stationary slip, annular preventer, balance pressure release four-way, entirely seal preventer, raise pipe nipple, lower stationary slip, triple ram preventer pass through Flange joint from top to bottom successively.
Tubing nipple tool string, is made up of plug, tubing nipple, fishing tool, and tubing nipple upper end is threaded with plug, and its lower end is threaded with fishing tool left-hand thread.
Described balance pressure release four-way side is connected with tubing head four-way by equilibrium pressure pipeline, and opposite side is connected with ground relief pipeline.
Described jacking system is made up of top rail, lower transverse beam and lifting fluid cylinder.Lifting fluid cylinder is fixedly connected with lower transverse beam by top rail, and top rail does axial elevating movement under the hydraulic action of lifting fluid cylinder.
The beneficial effects of the utility model are:
The utility model solves conventional snubbing serving device and plays long well section perforating gun at well head, owing to sealing perforating gun, causes OIH gas and easily reveals, and kill-job mode must be adopted to play the technological deficiency of perforating gun.The utility model achieves snubbing serving and plays long well section perforating gun, the pollution that when effectively prevent perforation, kill-job causes low pressure reservoir.
Accompanying drawing explanation
Fig. 1 is well head snubbing serving apparatus structure schematic diagram of the present utility model.
Fig. 2 is tubing nipple tool string structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, concrete description is done to the utility model:
From Fig. 1 and Fig. 2, of the present utility model long well section perforation gun apparatus comprises well head snubbing serving device and application tube pipe nipple tool string, wherein: well head snubbing serving device is made up of traveling slip 1, upper stationary slip 2, annular preventer 3, balance pressure release four-way 4, full envelope preventer 5, rising pipe nipple 6, lower stationary slip 7, triple ram preventer 8 and jacking system.Traveling slip 1 is arranged on top rail 14 center of jacking system, and upper stationary slip 2, annular preventer 3, balance pressure release four-way 4, full envelope preventer 5, rising pipe nipple 6, lower stationary slip 7, triple ram preventer 8 pass through Flange joint from top to bottom successively.
Tubing nipple tool string, is made up of plug 16, tubing nipple 17, fishing tool 18, and tubing nipple 17 upper end is threaded with plug 16, and its lower end is threaded with fishing tool 18 left-hand thread.
Described balance pressure release four-way 4 side is connected with tubing head four-way 9 by equilibrium pressure pipeline 15, and opposite side is connected with ground relief pipeline 12.
Described jacking system is made up of top rail 14, lower transverse beam 11 and lifting fluid cylinder 13, and lifting fluid cylinder 13 is fixedly connected with lower transverse beam 11 by top rail 14, and top rail 14 does axial elevating movement under the hydraulic action of lifting fluid cylinder 13.
By the triple ram preventer 8 of well head snubbing serving device bottom, snubbing serving device is arranged on well head oil tube head four-way 9, again by steel wire operation by under oil pipe capping tools to down-hole string perforating gun top last root oil pipe in, adopt conventional snubbing serving method to trip out the tubing string of more than last root oil pipe at well head, utilize annular preventer 3 movable sealing oil pipe, traveling slip 1 and upper stationary slip 2 alternation play oil pipe, until perforating gun joint is positioned at rising pipe nipple 6 cylinder body of snubbing serving device, close lower stationary slip, it is made to block perforating gun, dismantle last root oil pipe, after traveling slip 1 and upper stationary slip 2 alternation are tripped out full envelope preventer top, close and entirely seal preventer, open the side gate that balance pressure release four-way 4 is connected with ground relief pipeline 12, release full envelope preventer more than 5 in-cylinder pressure, drive annular preventer 3, last root oil pipe is proposed well head, (A): by tubing nipple tool string under well head, it is followed successively by plug 16 from top to bottom, tubing nipple 17, slip socket 18, tubing nipple tool string is sealed preventer 5 top down to complete by traveling slip 1 and upper stationary slip 2 alternation, close annular preventer 3, open the side gate that balance pressure release four-way 4 is connected with pressure-equalizing line 15, rebalancing seals preventer more than 5 in-cylinder pressure entirely, drive full envelope preventer 5, continue lower tubing nipple tool string, after making its underpart slip socket 18 salvage perforating gun joint, traveling slip 1 and upper stationary slip 2 alternation play tubing nipple tool string, until lower joint perforating gun joint is positioned at lower stationary slip 7 upper surface, make in the cylinder body of joint perforating gun between rising pipe nipple 6 to balance pressure release four-way 4 simultaneously, close lower stationary slip 7, it is made to block perforating gun, (B): rotation wellhead tubing nipple tool string, after upper and lower two joint perforating guns are threaded off, traveling slip 1 and upper stationary slip 2 alternation play joint perforating gun to full envelope preventer 5 top, close full envelope preventer 5, open the side gate that balance pressure release four-way 4 is connected with ground relief pipeline 12, release full envelope blowout prevention more than 5 in-cylinder pressure, drive annular preventer 3, carry tubing nipple tool string and coupled perforating gun goes out well head, circulation step (A), (B) are until perforating gun string all trips out well head.

Claims (3)

1. a long well section perforation gun apparatus, comprise well head snubbing serving device and application tube pipe nipple tool string, it is characterized in that: well head snubbing serving device is by traveling slip (1), upper stationary slip (2), annular preventer (3), balance pressure release four-way (4), full envelope preventer (5), raise pipe nipple (6), lower stationary slip (7), triple ram preventer (8) and jacking system composition, traveling slip (1) is arranged on top rail (14) center of jacking system, upper stationary slip (2), annular preventer (3), balance pressure release four-way (4), full envelope preventer (5), raise pipe nipple (6), lower stationary slip (7), triple ram preventer (8) passes through Flange joint from top to bottom successively, tubing nipple tool string, be made up of plug (16), tubing nipple (17), fishing tool (18), tubing nipple (17) upper end is threaded with plug (16), and its lower end is threaded with fishing tool (18) left-hand thread.
2. according to claim 1 long well section perforation gun apparatus, is characterized in that: described balance pressure release four-way (4) side is connected with tubing head four-way (9) by equilibrium pressure pipeline (15), and opposite side is connected with ground relief pipeline (12).
3. according to claim 1 long well section perforation gun apparatus, it is characterized in that: described jacking system is made up of top rail (14), lower transverse beam (11) and lifting fluid cylinder (13), and lifting fluid cylinder (13) is fixedly connected with lower transverse beam (11) by top rail (14).
CN201420470899.9U 2014-08-20 2014-08-20 Play long well section perforation gun apparatus Active CN204024609U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420470899.9U CN204024609U (en) 2014-08-20 2014-08-20 Play long well section perforation gun apparatus

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Application Number Priority Date Filing Date Title
CN201420470899.9U CN204024609U (en) 2014-08-20 2014-08-20 Play long well section perforation gun apparatus

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CN204024609U true CN204024609U (en) 2014-12-17

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CN201420470899.9U Active CN204024609U (en) 2014-08-20 2014-08-20 Play long well section perforation gun apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329040A (en) * 2014-08-20 2015-02-04 中国石油化工股份有限公司 Long well segment perforating gun lifting process and special device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329040A (en) * 2014-08-20 2015-02-04 中国石油化工股份有限公司 Long well segment perforating gun lifting process and special device
CN104329040B (en) * 2014-08-20 2018-06-08 中国石油化工股份有限公司 Play long well section perforating gun technique and dedicated unit

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