CN203114162U

CN203114162U - Anti-trip anti-well-falling screw rod drilling tool

Info

Publication number: CN203114162U
Application number: CN 201320149686
Authority: CN
Inventors: 周凯; 鲁勇; 郭育; 杨旭平; 黄国强
Original assignee: RENQIU NORTH CHINA PETROLEUM TONGYUN PETROLEUM MACHINERY CO Ltd
Current assignee: RENQIU NORTH CHINA PETROLEUM TONGYUN PETROLEUM MACHINERY CO Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-08-07
Anticipated expiration: 2023-03-29

Abstract

An anti-trip anti-well-falling screw rod drilling tool comprises a bypass valve (1) and a hydraulic motor (2), and a hydraulic motor stator (2-1) is mounted on the inner wall of the hydraulic motor (2). The upper portion of a cardan shaft (3) is connected with the hydraulic motor (2), and the lower portion of the cardan shaft (3) is connected with a transmission shaft component (4). The anti-trip anti-well-falling screw rod drilling tool is characterized in that anti-trip anti-well-falling devices (5) are arranged on the bypass valve (1) and the middle portion of the hydraulic motor (2), the upper portions of the anti-trip anti-well-falling devices (5) are in threaded connection with the bottom portion of the bypass valve (1), and the lower portions of the anti-trip anti-well-falling devices (5) are in threaded connection with the hydraulic motor (2). The anti-trip anti-well-falling screw rod drilling tool has the advantages that the anti-trip anti-well-falling screw rod drilling tool can prevent the situations that connecting thread tripping or transmission part breaking caused by instant increasing of reaction torque of a drilling tool and well-falling accidents are caused accordingly due to the fact that a well hole is deflected and a drill is clamped in the working process of a horizontal well, an inclined well and a cluster well; and the screw rod drilling tool can be free from well falling when the connecting threads of outer shell of each component trips due to the instant increasing of the reaction torque of the drilling tool, and can be protected from well falling when the outer shell breaks due to the well hole inclination and bit bouncing.

Description

Anti-tripping preventing from falling into well helicoid hydraulic motor

Technical field

The utility model relates to a kind of drilling well, well workover helicoid hydraulic motor, and a kind of anti-tripping preventing from falling into well helicoid hydraulic motor particularly belongs to the technical field of oilfield downhole operation construction aspect.

Background technology

Petroleum resources since intrinsic scarcity and the dynamics of countries mine and utilization further strengthen, a lot of old fileds have all entered the later stage exploitation in succession, oil mining is more and more darker, drillng operation is constructed to the place of geological conditions differences such as high mountain, desert especially, thereby caused oil well more and more darker, inclined shaft, horizontal well increase.Helicoid hydraulic motor causes dropout to fall well owing to a variety of causes such as geological conditions, construction operations and the well accident that ruptures increases, thereby causes bigger economic loss.

Summary of the invention

The purpose of this utility model provides a kind of anti-tripping preventing from falling into well helicoid hydraulic motor.

The technical solution of the utility model is as follows: a kind of anti-tripping preventing from falling into well helicoid hydraulic motor, comprise bypass valve (1) and fluid motor (2), and fluid motor stator (2-1) is installed on the inwall of fluid motor (2); Universal drive shaft (3) top is connected with fluid motor (2), the bottom is connected with power transmission shaft parts (4), it is characterized in that, middle part at bypass valve (1) and fluid motor (2) is provided with anti-tripping preventing from falling into well device (5), the top of anti-tripping preventing from falling into well device (5) is threaded with bypass valve bottom (1), and the bottom is threaded with fluid motor (2).

Inner setting of anti-tripping preventing from falling into well device (5) anti-lost nut (5-2) is installed, against falling bar (5-3) upper end is threaded with anti-lost nut (5-2), and against falling bar (5-3) lower end is threaded with fluid motor rotor (2-2).

Be left-hand thread in the described anti-lost nut (5-2).Described against falling bar (5-3) two ends are left-hand threads.What the rotor top of described fluid motor (2) arranged is left-hand thread.

The utlity model has following characteristics (1) and can prevent in horizontal well, inclined shaft, the cluster well course of work, because the crooked bit freezing of well, drilling tool reaction torque moment increases and the connecting thread that causes is threaded off or the driving member fracture, causes the well accident.(2) above-mentioned helicoid hydraulic motor owing to moment reaction torque increase each the parts shell connecting thread cause and thread off and do not fall well, can prevent that drilling tool is crooked owing to well, bit bouncing causes shell from can rupture well yet.

Description of drawings

Fig. 1 is top of the present utility model sectional structure schematic diagram;

Fig. 2 is bottom of the present utility model sectional structure schematic diagram.

Among the figure: 1. bypass valve, 2. fluid motor, 2-1. are that fluid motor stator, 2-2. are fluid motor rotor, 3. universal drive shaft, 4. power transmission shaft parts, 5. anti-tripping preventing from falling into well device, 5-1. falling-proof apparatus shell, the anti-lost nut of 5-2., 5-3. against falling bar.

The specific embodiment

As shown in Figure 1, the utility model is made up of bypass valve (1), fluid motor (2), universal drive shaft (3), power transmission shaft parts (4), anti-tripping preventing from falling into well device (5).

The top of anti-tripping preventing from falling into well device 5 is threaded with bypass valve bottom 1, and the bottom is threaded with fluid motor 2.Anti-tripping preventing from falling into well device 5 inner settings anti-lost nut 5-2 is installed, against falling bar 5-3 upper end is threaded with anti-lost nut 5-2, and against falling bar 5-3 lower end is threaded with fluid motor rotor 2-2.

Fluid motor stator 2-1 is installed on the inwall of fluid motor 2; Universal drive shaft 3 tops are connected with fluid motor 2, and the bottom is connected with power transmission shaft parts 4.

Described anti-lost nut 5-2 is left-hand thread.

Described against falling bar 5-3 two ends are left-hand threads.

What the rotor top of described fluid motor 2 arranged is left-hand thread.

Claims

1. anti-tripping preventing from falling into well helicoid hydraulic motor comprises bypass valve (1) and fluid motor (2), and fluid motor stator (2-1) is installed on the inwall of fluid motor (2); Universal drive shaft (3) top is connected with fluid motor (2), the bottom is connected with power transmission shaft parts (4), it is characterized in that, middle part at bypass valve (1) and fluid motor (2) is provided with anti-tripping preventing from falling into well device (5), the top of anti-tripping preventing from falling into well device (5) is threaded with bypass valve bottom (1), and the bottom is threaded with fluid motor (2).

2. helicoid hydraulic motor according to claim 1, it is characterized in that, inner setting of anti-tripping preventing from falling into well device (5) anti-lost nut (5-2) is installed, against falling bar (5-3) upper end is threaded with anti-lost nut (5-2), and against falling bar (5-3) lower end is threaded with fluid motor rotor (2-2).

3. helicoid hydraulic motor according to claim 2 is characterized in that, is left-hand thread in the described anti-lost nut (5-2); Described against falling bar (5-3) two ends are left-hand threads; What the rotor top of described fluid motor (2) arranged is left-hand thread.