CN202832334U - Straight-barrel-type oil-gas well head ball catching device - Google Patents
Straight-barrel-type oil-gas well head ball catching device Download PDFInfo
- Publication number
- CN202832334U CN202832334U CN201220465622.8U CN201220465622U CN202832334U CN 202832334 U CN202832334 U CN 202832334U CN 201220465622 U CN201220465622 U CN 201220465622U CN 202832334 U CN202832334 U CN 202832334U
- Authority
- CN
- China
- Prior art keywords
- oil
- ball device
- well head
- type oil
- gas well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a straight-barrel-type oil-gas well head ball catching device which comprises a barrel body. The barrel body is provided with an inflow mouth section connected with an outlet of an oil-gas extraction tree, and an outflow mouth section arranged departing from the oil-gas extraction tree. A connection mechanism connected with the outlet of the oil-gas extraction tree is arranged at one end of the inflow mouth, and a grate plate used for dividing the barrel body into two parts is fixedly arranged on the portion, between the inflow mouth section and the outflow mouth section, of the inner wall of the barrel body. When the straight-barrel-type oil-gas well head ball catching device is used, the connection mechanism of the inflow mouth is connected with the outlet of the oil-gas extraction tree to arrange the whole ball catching device on the outer side of the oil-gas extraction tree. Therefore, the diameter of the ball catching device is not limited by the pipe diameter of the oil-gas extraction tree, and balls of larger diameters can be caught. Thus, more sectional ball driving fracturing sections are achieved, and fracturing improvement effect is better ensured.
Description
Technical field
The utility model relates to oil, natural gas extraction special equipment technical field, relates in particular to a kind of straight barrel type Oil/gas Well well head and catches the ball device.
Background technology
Unconventional oil-gas reservoir has become the emphasis of domestic and international exploration and development, in order to improve oil gas field well yield and development benefit, minimizing pressing crack construction activity duration, to reduce reservoir damage, horizontal well and commingling production have become the Main Means of this type of oil-gas reservoir of exploitation, multistage pitching staged fracturing is relatively ripe technological means in the present horizontal well volume increase renovation technique, and the fixed tubular column separate stratum fracfturing is that the exploitation multilayer is the effective means of unconventional oil-gas reservoir, and these two kinds of technology have all obtained obvious economic benefit in oilfield prospecting developing.
Multistage pitching disjunction pressure break and fixed tubular column separate stratum fracfturing all are sliding sleeves of opening sealing fracturing section nozzle by the ball that drops into corresponding size, and ball and sliding sleeve tee be landing downwards and shutoff fractured interval then, thereby realizes that pressure break turns layer.But adopt this method after pressing crack construction finishes, still be trapped in the fracturing string in order to the ball of hitting sliding sleeve down, if ball is not taken out, in the situation of or insufficient pressure lower in plugged zone output, to be difficult to back down ball sealer, and cause plugged zone can't contribute output; Even ball is backed down, the ball that is trapped in the shaft column still can cause in the shaft column obstructed.
The Chinese patent file Oil/gas Well well head of notice of authorization CN 201474645 U is caught the ball device and is disclosed and a kind ofly catch the ball device in order to what clear out the ball that is detained in the shaft column, comprise the plug that connects successively from top to bottom, cylindrical shell and base, base and cylindrical shell adopt screwed connection, be provided with lower end diameter greater than the spring detent of upper end diameter in its junction, ball in tubing string builds the pressure at the pressure break reservoir, return when discharging pit shaft with fluid media (medium) with certain speed under the comprehensive function of oil gas energy in strata pressure and the reservoir, the impact spring pawl, spring detent opens to interior after being hit, ball enters in the cylindrical shell thereupon, and because large little special construction under the spring detent, it can only inwardly be opened, so the ball return pipe post that can not fall.This catches the ball device is to stretch in the christmas tree by christmas tree wax removal valve place catching the ball device before use, plug is connected by the flange plate of screw thread with christmas tree wax removal valve, therefore this diameter of catching ball device cylindrical shell must be less than christmas tree, the diameter of the ball that can catch is restricted, thereby the hop count of limit levels well multistage subsection pitching pressure break affects the fractured horizontal well correctional effect.
The utility model content
The utility model provides a kind of straight barrel type Oil/gas Well well head to catch the ball device, solves can't to catch the larger ball of diameter in the prior art and cause the few problem of pressure break hop count.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of straight barrel type Oil/gas Well well head is caught the ball device, comprise cylindrical shell, described cylindrical shell has an inflow entrance section that is connected with the christmas tree outlet, also has a flow export section, described inflow entrance Duan Yiduan is provided with the syndeton that is connected with the christmas tree outlet, and the cylinder inboard wall between described inflow entrance section and the flow export section is installed with for cylindrical shell being separated into two-part grate plate.
Described grate plate is the metal sheet with loose structure that is wholely set with described cylindrical shell.
Described grate plate is near described flow export section one side setting.
Described syndeton is flange.
Described flow export section is set to throat structure, and described flow export section is provided with the reducing external screw thread.
A kind of straight barrel type Oil/gas Well well head that the utility model proposes is caught the ball device, the inflow entrance section of catching the ball device links to each other with the outlet of christmas tree, the flow export section deviates from the christmas tree setting, the whole ball device of catching is connected to the christmas tree outside, therefore catch the restriction that ball device barrel diameter is not subjected to the christmas tree diameter, can catch the larger ball of diameter, increase the hop count of horizontal well multistage subsection pitching pressure break, make fracturing reform obtain better effect.
Further, the grate plate arranges near flow export Duan Yiduan, increases the nodule number amount of once catching in the certain situation of ball device cylindrical shell length catching, and reduces dismounting and catches ball device number of times, increases work efficiency.
Further, the flow export section is set to throat structure, is provided with the reducing external screw thread on it, can connect according to actual conditions the tubing string of different bores by adapter.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Be illustrated in figure 1 as the structural representation of the utility model embodiment, the cylindrical shell 2 that comprises the hollow barrel-type structure of cast form, cylindrical shell 2 has the inflow entrance section of close christmas tree outlet and deviates from the flow export section that christmas tree arranges, inflow entrance Duan Yiduan is provided with the flange 1 that is connected with the christmas tree port of export, the flow export section is throat structure, which is provided with reducing external screw thread 4, cylindrical shell 2 inwalls are cast with grate plate 3 along its radial integrated between inflow entrance section and the flow export section.
By flange 1 cylindrical shell 2 is connected with the christmas tree exit before the pressing crack construction, the reducing external screw thread 4 at flow export section place is connected with the blooie pipe male screw by adapter, will catch the ball device and be connected in the christmas tree outside, forms complete relief line.The whole ball device of catching is placed the christmas tree outside, therefore will catch the ball device before pressing crack construction installs, pressing crack construction does not need to remove just directly open flow discharge opeing of pipeline after finishing, reduce the injury that fracturing fluid is trapped in oil-gas Layer for a long time, and pressure break is caught the ball device without dismounting after finishing, shorten duty cycle, raise the efficiency.
After pressing crack construction finishes, do not need to remove the pressure break pipeline, directly convert the christmas tree valve to relief line, the ball that is used for hitting down sliding sleeve this moment during pressing crack construction builds the pressure at the pressure break reservoir, return the discharge pit shaft with fluid media (medium) under the comprehensive function of oil gas energy in strata pressure and the reservoir, and enter with fluid media (medium) with certain speed and to catch in the ball device cylindrical shell 2, and the stop of being obstructed at grate plate 3 places, because constantly pouring in of subsequent flows body medium, ball can not be back in the pit shaft, catch when the fracturing string endosphere and to finish or to catch the ball device and catch when full, close christmas tree open flow valve, pull down and catch the ball device and pour out the ball of catching in the ball device, if need to continue to catch ball, repeat this flow process until caught.
This catches the ball device is to be connected to the christmas tree outside, and the diameter of therefore catching ball device cylindrical shell is not subjected to the restriction of christmas tree pipeline, can catch the larger ball of diameter, thereby can increase the multistage pitching staged fracturing of horizontal well hop count, improves the fractured horizontal well correctional effect.
In the present embodiment, catch ball device cylindrical shell and adopt flange to be connected with the christmas tree outlet, can also adopt in other embodiments to be threaded.
In the present embodiment, the casting integrated setting of grate plate and cylindrical shell can also be adopted the mode that is welded to connect in other embodiments.
Claims (5)
1. a straight barrel type Oil/gas Well well head is caught the ball device, it is characterized in that: comprise cylindrical shell, described cylindrical shell has an inflow entrance section that is connected with the christmas tree outlet and deviates from the flow export section that christmas tree arranges, described inflow entrance Duan Yiduan is provided with the syndeton that is connected with the christmas tree outlet, and the cylinder inboard wall between described inflow entrance section and the flow export section is installed with for cylindrical shell being separated into two-part grate plate.
2. straight barrel type Oil/gas Well well head according to claim 1 is caught the ball device, it is characterized in that: described grate plate is the metal sheet with loose structure that is wholely set with described cylindrical shell.
3. straight barrel type Oil/gas Well well head according to claim 1 and 2 is caught the ball device, it is characterized in that: described grate plate is near described flow export section one side setting.
4. straight barrel type Oil/gas Well well head according to claim 3 is caught the ball device, it is characterized in that: described syndeton is flange.
5. straight barrel type Oil/gas Well well head according to claim 3 is caught the ball device, it is characterized in that: described flow export section is set to throat structure, and described flow export section is provided with the reducing external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220465622.8U CN202832334U (en) | 2012-09-13 | 2012-09-13 | Straight-barrel-type oil-gas well head ball catching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220465622.8U CN202832334U (en) | 2012-09-13 | 2012-09-13 | Straight-barrel-type oil-gas well head ball catching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832334U true CN202832334U (en) | 2013-03-27 |
Family
ID=47944066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220465622.8U Expired - Lifetime CN202832334U (en) | 2012-09-13 | 2012-09-13 | Straight-barrel-type oil-gas well head ball catching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832334U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742095A (en) * | 2014-01-27 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Cylinder type gas well ground pipeline ball precipitator |
| CN104153752A (en) * | 2014-08-26 | 2014-11-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hydraulic jetting tubing sand filling stratified multi-stage fracturing technology for horizontal well |
-
2012
- 2012-09-13 CN CN201220465622.8U patent/CN202832334U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742095A (en) * | 2014-01-27 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Cylinder type gas well ground pipeline ball precipitator |
| CN103742095B (en) * | 2014-01-27 | 2016-04-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of straight barrel type gas well surface line catches ball device |
| CN104153752A (en) * | 2014-08-26 | 2014-11-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hydraulic jetting tubing sand filling stratified multi-stage fracturing technology for horizontal well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201386526Y (en) | Plunger capture device used for plunger gas-lift well mouth | |
| CN201412133Y (en) | Pipe string for multi-stage drag fracturing of horizontal well | |
| CN102606108B (en) | Pitching pressure-out opening oil tube constant-pressure floating valve | |
| CN202832334U (en) | Straight-barrel-type oil-gas well head ball catching device | |
| CN104514522A (en) | Low-pressure gas well eddy current plunger water drainage and gas collection device | |
| CN105089581B (en) | A kind of Large Diameter Pipeline gas well well flow rate controller and process | |
| CN202832335U (en) | Gap-free sedimentation type oil-and-gas well mouth ball-catching device | |
| CN202338316U (en) | Five-layer layered compression fracture technology pipe column capable of mechanical isolating and progressive unpacking | |
| CN205778654U (en) | Double layer continuous oil pipe sand pumping device | |
| CN202832342U (en) | Sedimentation type oil-gas well mouth ball catcher | |
| CN203394474U (en) | Easy-to-salvage throttler | |
| CN109519136A (en) | A kind of automatic rotoblast cutting technique tubing string of coiled tubing and method | |
| CN202832425U (en) | Screen pipe and oil and gas well opening ball-catching device using the same | |
| CN201991503U (en) | Nozzle-built-in hydraulic jet | |
| CN201474645U (en) | Oil and gas well head ball catching device | |
| CN105484721A (en) | Efficient fracturing construction technology tubular column for horizontal well and fracturing construction technology | |
| CN202531150U (en) | Fishable fracturing sliding sleeve sand spraying device | |
| CN201778771U (en) | Fixed tubular column hydraulic jetting layer separating and fracturing integral tubular column | |
| CN207080205U (en) | A kind of hollow rod pit shaft chemicals dosing plant | |
| CN103362488A (en) | Sand blasting device allowing fracturing sliding sleeve to be fished | |
| CN110067528A (en) | A kind of injecting cement in oil well method and single current cementing tool | |
| CN203403866U (en) | Integrated oil production technology tubular column | |
| CN204960855U (en) | Ball ware is caught to oil gas well well head | |
| CN105385432B (en) | A kind of fracturing fluid recovery fluid erosion prevention desanding system and method | |
| CN201129169Y (en) | Self-cleaning type block-resistant sand prevention pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |