CN2177796Y

CN2177796Y - Sleeve jointing centralising device

Info

Publication number: CN2177796Y
Application number: CN 94201260
Authority: CN
Inventors: 温德湘; 高金颖; 姜晶奎; 赵燕明
Original assignee: No3 Drilling Co Daqing Petroleum Administration
Current assignee: No3 Drilling Co Daqing Petroleum Administration
Priority date: 1994-01-05
Filing date: 1994-01-05
Publication date: 1994-09-21
Anticipated expiration: 2004-01-05

Abstract

The utility model discloses a sleeve tube connecting centralizing device which is arranged on a well frame and is used for centralizing a sleeve tube under an oil well. The sleeve tube connecting centralizing device which is arranged on a well frame and is used for centralizing a sleeve tube under an oil well realizes air control mechanical righting, and the sleeve tube connecting centralizing device which is arranged on a well frame and is used for centralizing a sleeve tube under an oil well is labor-saving and safe. Telescopic inner sleeves (3) which are driven by screws (8, 10) can be arranged on a well frame. The ends of the telescopic inner sleeves (3) are hinged with arc wrist arms (4, 5) which are opposite and are like two arms. One wrist arm is longer, which can make a sleeve tube which is hung into the well frame from a ground blocked from a waist. Cylinders 6 are respectively hinged between the outer sides of the arc wrist arms and the telescopic inner sleeves. The expansion and the folding of two wrists are realized in an air control mode, and the purpose that a connecting sleeve tube is centralized and righted is achieved.

Description

Sleeve jointing centralising device

The utility model relates to a kind of sleeve pipe of oil well in the casing job process and connects erection device.

In Process of Oil Well Drilling and after the finishing drilling,, generally can be divided into top layer, technology and production string according to designing the sleeve pipe that will be lowered to different size.Setting of casing is to connect nervous operation, ground single sleeve pipe in a row is hung in by power hook on the derrick rig floor and hang to be held in aerial centering, connects under the lower going-into-well again.Because the every longer body of pipe is very heavy, when hanging in, in drawing the process of hanging, swing greatly because of sleeve pipe, inertia is also very big, and wanting to be centered in well head needed than the time of growing, and in order to improve medium velocity, need someone stand in the derrick appropriate location and set upright sleeve pipe top.Operating personnel set upright on derrick, not only require great effort but also dangerous; The centering effect that has is bad just to be connected by force, causes thread damage, influence the sealing of bunch tube, involves pernicious consequences to cement slurry cementing afterwards, directly influences cementing quality.Because most well depths are more than 1 km, more than 2 km to 3 kms that have, institute's setting of casing has the hundreds of root, and the time needs tens hours, and as seen the personnel labor intensity of setting upright on derrick is very high, and operating environment is abominable, and the time is longer.

The purpose of this utility model is to avoid weak point in the above-mentioned prior art, and a kind of sleeve pipe that provides gas control machinery to close up hand connects erection device, safety labor-saving, and the centering time is short, being beneficial to safety work and shortening docking time, increases work efficiency.

The purpose of this utility model can reach by the following technical programs: a spiral is arranged by being socketed on the derrick panel 1 outward, along the interior cover 3 that is connected to coaxial line on the nut 10 of sliding sleeve lifting, the hinged relative arc bracket (4 of interior cover end, 5), the one bracket can be longer, respectively is hinged with cylinder 6 in the bracket outside with interior inner room.

Above-mentioned overcoat can be hinged on the crossbeam, cylinder 7 that can hinged lifting between overcoat and derrick.In cover end can hinged symmetry opening and closing arm 4, the arm end can the hinged arc palm 5, one palm end can have the long arc shape of adding pin 16, cylinder 6 can be hinged between the arc palm and the opening and closing arm.Between two opening and closing arms, be equipped with spiral (20,21), in spiral is fixed on by external slide rail 19 on the cover end, hinged strut 18 between the nut 21 that slides along rail and two opening and closing arms.Two opening and closing arm ends can have formation " V " type skewback 17.

The utility model can have following effect than above-mentioned prior art: can realize that the gas control manipulator makes the pipe centering that connects up and down, not only safely to medium velocity but also fast, avoid the generation of personal injury, increase work efficiency.

Fig. 1 is a complete section diagrammatic sketch of the present utility model;

Fig. 2 is the gas control schematic diagram;

Fig. 3 is that Fig. 1 simplifies the complete section diagrammatic sketch;

Fig. 4 is an A--A sectional drawing on Fig. 1.

Below in conjunction with accompanying drawing will the utility model is described in further detail:

By shown in Figure 1, the spiral that is made of nut 10 and screw rod 8 is contained in overcoat (9,2) lining, and screw rod passes the end cap 2 of overcoat, and rod end is assemblied on the end cap with the shaft shoulder and nut, and the rod end that exposes is a multiple edge body.Overcoat one end has an ear to be connected on derrick to be fit on the crossbeam 1 that behaviour does.Along the cover 3 in (lifting) that stretches out that can weld coaxial line on the nut 10 of outer casing inner wall lifting slip, interior cover is held hinged relative arc bracket (4,5), and its shape can be embraced sleeve pipe as two arms that close up; The one bracket can be longer, can be hinged with cylinder 6 by the seat ear between the bracket outside and interior cover, makes two bracket opening and closing.

For said apparatus is attached on the derrick, overcoat (9,2) can be not hinged with crossbeam 1 when using; Can make the device rise and put down by the hinged cylinder 7 of seat ear between overcoat and the derrick simultaneously.For being applicable to the sleeve pipe of different tube diameters, interior cover end can weld a transverse slat 14, and by opening and closing (directly) arm 4 of the hinged symmetry of seat ear, the arm end is by each hinged arc palm 5 of seat ear on the plate, and one palm end has the long arc shape of adding to refer to that bar 16 can block sleeve pipe by the waist; Wherein cylinder 6 can be hinged by the seat ear between the arc palm and opening and closing arm.For regulating angle between two opening and closing arms, can between two arms, be equipped with spiral (20,21), spiral is fixed on the transverse slat middle part by " U " type external slide rail 19, and two rail legs are symmetrical in two arm center lines; Between the nut 21 that slides along rail and two the opening and closing arms connection strut 18 is arranged, connection strut one end and nut are hinged, and an end passes through pivot pin 15 and is connected with two arms.Two opening and closing arm ends have the skewback 17 of formation " V " type, on the work plane of the skewback and the arc palm 5 glue-line can be arranged.For making interior overcoat (9,2,3) is an axial line, and there is end cap 13 outer set upper side.Shown in figure, controlling two cylinders (6,7) has gas control operating desk (11,12).

By Fig. 2, shown in Figure 1, its operating process is: when control valve 12 was in 0, two Pneumatic valves 11 did not have control gas and enter the next work that is in, and

cylinder

7 and 6 makes erection device be in the position of hanging down all at retracted state, and the arc palm 5 opens; When the handle of moving control valve 12 as the workman made it to be in the I position, control gas entered left Pneumatic valve 11, makes it to be in upper work, cylinder 7 stretches out erection device is lifted to horizontal level, right Pneumatic valve 11 does not have the control gas and enters, and still is in the nextly, and it is constant that arc is slapped 5 open configurations; When moving handle and make control valve 12 be in the II position, Pneumatic valve 11 all is in upper work, and cylinder 7 still keeps stretching out constant, and cylinder 6 stretches out, and the arc palm 5 is closed up set upright sleeve pipe; By the time the sleeve pipe spinner finishes, and unclamps the handle of control valve 12, gets back to 0 under action of reset spring automatically, the venting of control gas, and it is the next that Pneumatic valve all is in, and cylinder 7 and cylinder 6 are all withdrawn, and the arc palm 5 opens, and erection device falls.

Claims

1, a kind of sleeve pipe that is configured for oil well setting of casing centering on derrick connects erection device, it is characterized in that: a spiral (8 is arranged, 10) by overcoat (9,2) be connected on the derrick panel (1), along being connected to the interior cover of stretching out of coaxial line (3) on the nut (10) of overcoat lifting, interior cover is held hinged relative arc bracket (4,5), the one bracket can be longer, then respectively is hinged with cylinder (6) with interior inner room outside bracket.

2, erection device according to claim 1 is characterized in that: overcoat (9,2) can be hinged on the crossbeam (1), cylinder (7) that can hinged lifting between overcoat and derrick.

3, erection device according to claim 1, it is characterized in that: the opening and closing arm (4) that interior cover (3) end can hinged symmetry, but each hinged arc palm (5) of arm end, one palm end can have the long arc shape of adding to refer to bar (16), and cylinder (6) can be hinged between the arc palm and opening and closing arm.

4, erection device according to claim 3, it is characterized in that: between two opening and closing arms (4), be equipped with spiral (20,21), in spiral is fixed on by external slide rail (19) on the cover end, hinged strut (18) between the nut (21) that slides along rail and two opening and closing arms (4).

5, erection device according to claim 3 is characterized in that: two opening and closing arm ends have formation " V " type skewback (17).