CN202108420U - Land headframe for duplex rig - Google Patents

Abstract

Land double drilling rig derrick, used in oilfield drilling. The main hoisting wire rope is wound on the main crown block and the main hoisting trolley, the main hoisting hook is fixed on the lower part of the main hoisting trolley, and the top driving device is suspended on the lower part of the main hoisting hook, and the top driving It is installed on the top drive slide rail, and the lower end of the top drive slide rail is on the drilling platform; the main turntable is fixed on the drilling platform, and the main turntable is opposite to the lower end of the top drive slide rail; An auxiliary hoisting wire rope is wound on the traveling block, an auxiliary hoisting hook is fixed on the lower part of the auxiliary hoisting wire rope, an auxiliary turntable is fixed on the drilling platform, an auxiliary winch is fixed on the drilling platform, and the transmission end of the auxiliary hoisting wire rope Wrapped around the drum of the auxiliary winch. The effect is: the auxiliary hoisting system completes the operation of connecting and dismantling single rods at the same time as drilling, saving drilling time and effectively improving drilling efficiency.

Description

Land double drilling rig derrick

technical field

The utility model relates to the technical field of land drilling equipment. In particular, it relates to a duplex drilling rig derrick used in land deep wells, ultra-deep wells and ultra-deep wells

Background technique

At present, in deep well and ultra-deep well drilling operations, as the drilling depth increases, the drilling efficiency decreases and the drilling cost increases. There is only one set of hoisting system on the drilling derrick, and one set of hoisting system is not only used for drilling operations, but also for auxiliary operations such as connecting single roots, and cannot be operated at the same time. The existing drilling derrick system has low drilling efficiency.

Utility model content

The purpose of the utility model is to provide a derrick for a land duplex drilling rig, which can improve the drilling efficiency of a land deep well and an ultra-deep well drilling rig, and can perform auxiliary operations such as connecting a single root while drilling, saving drilling time. The invention overcomes the deficiency that the derrick of the existing drilling rig cannot carry out auxiliary operations such as single root connection during the drilling operation.

The technical scheme adopted in the utility model is: the derrick of a land double drilling rig, which is mainly composed of a crown block, a main body of the derrick, a main hoisting wire rope, a main hoisting traveling block, a main hoisting hook, a top drive device, a top drive slide rail, a main Winch, main turntable, crown block platform, auxiliary hoisting wire rope, second-floor platform, auxiliary hoisting traveling block, auxiliary hoisting hook, auxiliary winch, auxiliary turntable, derrick foundation, gable and drilling platform. A herringbone frame is fixed on the foundation of the derrick, and a drilling platform is fixed on the top of the herringbone frame; the main body of the derrick is vertically fixed on the upper part of the drilling platform, and a two-story platform is fixed in the middle of the main body of the derrick; a crane platform is fixed on the top of the main body of the derrick , a crown block is fixed on the crown block platform (the crown block is a fixed pulley), and it is characterized in that: the crown block includes a main crown block and an auxiliary crown block;

The main hoisting wire rope is wound on the main crown block and the main hoisting trolley, the main hoisting hook is fixed on the lower part of the main hoisting trolley, and the top driving device is suspended on the lower part of the main hoisting hook , and the top driving device is on the top drive slide rail, and the lower end of the top drive slide rail is on the drilling platform; the main turntable is fixed on the drilling platform, and the main turntable is opposite to the lower end of the top drive slide rail; the main turntable is fixed on the drilling platform Winch, the driving end of the main hoisting wire rope is wound on the drum of the main winch;

An auxiliary hoisting wire rope is wound on the auxiliary crown block and auxiliary hoisting traveling block, an auxiliary hoisting hook is fixed on the lower part of the auxiliary hoisting wire rope, an auxiliary turntable is fixed on the drilling platform, and an auxiliary hoisting wheel is fixed on the drilling platform. There is an auxiliary winch, and the driving end of the auxiliary hoisting wire rope is wound on the drum of the auxiliary winch.

There is a drill rod slideway between the front end of the drilling platform and the ground; there are ladders between the two sides of the drilling platform and the ground.

In order to ensure that the main and auxiliary hoisting systems do not interfere with each other when they work at the same time, the front and rear centers of the main and auxiliary hoisting systems are misaligned. That is, the center distance between the main crown block and the auxiliary crown block is between 1000mm and 2000mm.

The main body of the derrick adopts a front opening or tower structure, and the width of the main body of the derrick is appropriately widened so as to leave enough space for installing two sets of hoisting systems; Bolt connection, safe and convenient installation and disassembly.

Beneficial effects of the utility model: The derrick of the utility model land duplex drilling rig consists of an auxiliary lifting wire rope, an auxiliary lifting traveling block, an auxiliary lifting hook, an auxiliary winch, and an auxiliary turntable to form an auxiliary lifting system. The auxiliary lifting system completes auxiliary operations such as connecting and dismantling the single root while drilling. Compared with the ordinary drilling process, this link saves drilling time and can effectively improve drilling efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the derrick of the utility model land duplex drilling rig.

Fig. 2 is a left side view of Fig. 1 .

In the figure, 1-crown, 2-main body of derrick, 3-main hoisting wire rope, 4-main hoisting traveling block, 5-main hoisting hook, 6-top driving device, 7-drill string, 8- Top drive slide rail, 9-main winch, 10-main turntable, 11-crown platform, 12-auxiliary lifting wire rope, 13-second floor platform, 14-auxiliary lifting traveling block, 15-auxiliary lifting hook, 16-auxiliary drawworks, 17-auxiliary turntable, 18-derrick foundation, 19-herringbone frame, 20-ladder, 21-drilling platform, 22-drill pipe slideway.

Detailed ways

Embodiment 1: Taking a land duplex drilling rig derrick as an example, the utility model is further described in detail.

See Figure 1. The utility model land duplex drilling rig derrick mainly consists of a crown block 1, a derrick main body 2, a main hoisting wire rope 3, a main hoisting traveling car 4, a main hoisting hook 5, a top drive device 6, a top drive slide rail 8, Main winch 9, main turntable 10, crown block platform 11, auxiliary hoisting wire rope 12, second-floor platform 13, auxiliary hoisting traveling block 14, auxiliary hoisting hook 15, auxiliary winch 16, auxiliary turntable 17, derrick foundation 18, The herringbone frame 19 and the drilling platform 21 are formed. On the derrick foundation 18, a gable frame 19 is fixed, and a drilling platform 21 is fixed on the top of the gable frame 19. Derrick main body 2 is vertically fixed on the top of drilling platform 21, and a two-layer platform 13 is arranged in the middle part of derrick main body 2, and second-layer platform 13 can move up and down; The drilling platform 21, the second-floor platform 13 and the second-floor platform 13 are parallel to each other. A crown crane 1 is fixed on the crown crane platform 11. The crown crane 1 includes a main crown crane and an auxiliary crown crane.

The main hoisting wire rope 3 is wound on the main crown block and the main hoisting trolley 4, the main hoisting hook 5 is fixed on the lower part of the main hoisting trolley 4, and the main hoisting hook 5 is fixed on the lower part of the main hoisting hook 5. Top driving device 6 is suspended, and top driving device 6 is on top driving slide rail 8, and the lower end of top driving slide rail 8 is on drilling platform 21; On drilling platform 21, a main turntable 10 is fixed, and main turntable 10 is connected with top drive Drive the lower end of slide rail 8 relative; On drilling platform 21, be fixed with a main drawworks 9, the driving end of main hoisting wire rope 3 is wound on the cylinder of main drawworks 9. The fixed end of the main hoisting wire rope 3 is fixed on the drilling platform 21 .

An auxiliary hoisting wire rope 12 is wound on the auxiliary crown block and auxiliary hoisting trolley 14, an auxiliary hoisting hook 15 is fixed on the lower part of the auxiliary hoisting wire rope 12, and an auxiliary turntable 17 is fixed on the drilling platform 21 , the auxiliary winch 16 is fixed on the drilling platform 21, and the transmission end of the auxiliary hoisting wire rope 12 is wound on the drum of the auxiliary winch 16. The fixed end of the auxiliary hoisting wire rope 12 is fixed on the drilling platform 21 . When pulling out the drill pipe, the main hoisting block 4 lifts the drill string 7 and discharges it on the drilling platform 21 .

See Figure 2. There is a drill rod slideway 22 between the front end of the drilling platform 21 and the ground; a ladder 20 is respectively arranged between the two sides of the drilling platform 21 and the ground. The center distance between the main crown block and the auxiliary crown block is 1200mm.

Claims (3)

1. a land duplex drilling derrick is mainly driven slide rail (8), main winch (9), main turntable (10), crown platform (11), auxiliary hoist rope (12), two-layer platform (13), is assisted the tourist bus (14) that hoists, auxiliary hoist hook (15), auxiliary winch (16), auxiliary turntable (17), derrick footing (18), man-like shelf (19) and offshore boring island (21) to form by overhead traveling crane (1), derrick main body (2), main hoist rope (3), the main tourist bus (4) that hoists, the main hook (5) that hoists, top-drive device (6), top; On derrick footing (18), be fixed with man-like shelf (19), the top of man-like shelf (19) is fixed with offshore boring island (21); Upper vertical at offshore boring island (21) is fixed with derrick main body (2), at the middle part of derrick main body (2) two-layer platform (13) is arranged; Be fixed with crown platform (11) at the top of derrick main body (2), on crown platform (11), be fixed with overhead traveling crane (1), it is characterized in that: described overhead traveling crane (1) comprises main overhead traveling crane and assistant crown block;

, described main overhead traveling crane is wound with main hoist rope (3) hoisting tourist bus (4) with the master on; Be fixed with the main hook (5) that hoists in the bottom of the main tourist bus (4) that hoists; Bottom at the main hook (5) that hoists is hung with top-drive device (6); And top-drive device (6) drives on the slide rail (8) on the top, and the lower end that slide rail (8) is driven on the top is on offshore boring island (21); In drilling well flat (21), be fixed with main turntable (10), main turntable (10) is relative with the lower end that slide rail (8) is driven on the top; On offshore boring island (21), be fixed with main strand (9), the driving end of main hoist rope (3) is wrapped on the cylinder of main winch (9);

Be wound with auxiliary hoist rope (12) in described assistant crown block with assisting on the tourist bus (14) that hoists; Be fixed with the auxiliary hook (15) that hoists in the bottom of auxiliary hoist rope (12); On offshore boring island (21), be fixed with auxiliary turntable (17); On offshore boring island (21), be fixed with auxiliary winch (16), the driving end of auxiliary hoist rope (12) is wrapped on the cylinder of auxiliary winch (16).

2. land according to claim 1 duplex drilling derrick is characterized in that: between the front end of offshore boring island (21) and ground, drilling rod slideway (22) is arranged; Ladder (20) is arranged between offshore boring island (21) dual-side and ground.

3. land according to claim 1 duplex drilling derrick, it is characterized in that: the center to center distance of described main overhead traveling crane and described assistant crown block is between 1000～2000mm.

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