阅读说明：本技术 测井天滑轮悬挂装置 (Well logging sky pulley linkage ) 是由 徐海涛 路远涛 高明 万舒 肖勇 郭立敏 霍洪亮 杨景海 刘兴斌 于 2020-05-21 设计创作，主要内容包括：本发明涉及一种测井天滑轮悬挂装置。主要解决了现有天滑轮使用钢丝绳套的连接方式在测井电缆起下过程中摩擦井口容易损伤电缆产生不安全因素的问题。其特征在于：所述圆环体(1)上端外轮廓为圆环形,下端为四方体型;所述圆环体(1)下端连接台阶(2),台阶(2)下端连接连接杆(3),连接杆(3)下端连接承接环(4)。该测井天滑轮悬挂装置,能够降低在工程测井过程中电缆的损伤,增加了测井施工过程中天滑轮悬挂系统的安全性和可靠性。(The invention relates to a well logging pulley suspension device. The problem of current day pulley use the connected mode of wire rope cover to rub the well head and damage the cable easily and produce unsafe factor at logging cable in-process down has mainly been solved. The method is characterized in that: the outer contour of the upper end of the circular ring body (1) is circular, the lower end of the circular ring body (1) is square, the lower end of the circular ring body (1) is connected with a step (2), the lower end of the step (2) is connected with a connecting rod (3), and the lower end of the connecting rod (3) is connected with a bearing ring (4). The well logging sky pulley suspension device can reduce the damage of a cable in the engineering well logging process, and the safety and the reliability of a sky pulley suspension system in the well logging construction process are improved.)

1. The utility model provides a well logging sky pulley linkage, is annular ring body (1) of circle including the center, its characterized in that: the outer contour of the upper end of the circular ring body (1) is circular, the lower end of the circular ring body (1) is square, the lower end of the circular ring body (1) is connected with a step (2), the lower end of the step (2) is connected with a connecting rod (3), and the lower end of the connecting rod (3) is connected with a bearing ring (4).

2. The logging sky pulley suspension device of claim 1, wherein: the whole logging sky pulley suspension device is preferably made of forged steel, and the tensile strength is greater than or equal to 29450 Kg.

3. The logging sky pulley suspension device of claim 1, wherein: the bearing ring (4) is connected with the logging overhead pulley through a quick bolt.

Technical Field

The invention relates to the technical field of oil field logging engineering, in particular to a logging crown block suspension device.

Background

The method is characterized in that the installation of the crown block is an essential step in the well logging process, and the crown block is connected to an operation frame and an elevator of a drilling frame or a hoisting hook position of a drilling frame vehicle through a steel wire rope sleeve and a U-shaped hook in a combined mode in the well logging process in the prior art. There is a distance between day pulley and the operation frame elevator, and there is certain contained angle between ground pulley and the day pulley in addition, can make the day pulley produce the deflection, leads to logging cable to get out of the well in-process friction well head, damage cable. When the engineering cutting logging or logging instrument meets the obstruction and is blocked, the connection mode of the top pulley is flexible connection, so that the top pulley can shake greatly, a cable is easy to jump a groove, and the logging cable is damaged. As the service life of the wire rope cover increases, the tensile strength becomes weak, causing unsafe factors. In view of the above, the crown block suspension device is redesigned to facilitate safe logging construction.

Disclosure of Invention

The invention aims to solve the technical problem that the existing connection mode of the crown block using the steel wire rope sleeve in the background technology rubs a wellhead to easily damage a cable and generate unsafe factors in the process of logging cable tripping, and provides a logging crown block suspension device which can reduce the damage of the cable in the engineering logging process and increase the safety and reliability of a crown block suspension system in the logging construction process.

The invention can solve the problems by the following technical scheme: the logging sky pulley suspension device comprises a ring body with a circular ring-shaped center, wherein the outer contour of the upper end of the ring body is circular, the lower end of the ring body is square, the lower end of the ring body is connected with a step, the lower end of the step is connected with a connecting rod, and the lower end of the connecting rod is connected with a bearing ring.

The whole logging sky pulley suspension device is preferably made of forged steel, and the tensile strength is greater than or equal to 29450 Kg.

The logging sky pulley suspension device has the characteristics that:

1. and the safe butt joint of the logging equipment and an external device is realized by adopting a hard connection mode.

2. And the tensile force and the bearing capacity are increased, and logging equipment and logging instruments are protected.

3. Smooth and easy direction improves the factor of safety of logging hoist and mount.

4. The safety self-locking trigger structure for the top drive electric elevator is specially designed, and the falling accident of the hoisting equipment caused by manual misoperation is avoided.

5. The well logging hoisting device can be used in various well logging hoisting modes, and is high in expansibility.

Compared with the background technology, the invention has the following beneficial effects: this well logging sky pulley linkage has reduced the damage of cable at engineering logging in-process, has increased well logging work progress sky pulley linkage's security and reliability, the effectual well logging efficiency and the well logging quality that has improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is a side view of the present invention.

The specific implementation mode is as follows:

the invention will be further explained below with reference to the accompanying drawings:

as shown in attached figures 1 and 2, the logging overhead sheave suspension device comprises a circular ring body 1 with a circular ring shape at the center, wherein the outer contour of the upper end of the circular ring body 1 is circular, the upper circular ring part is used for being hung with a hook of a logging derrick car, the lower end of the circular ring body is square, the horizontal part of the bottom of the square is used for being contacted with a well drilling and workover contact surface, and the circular ring body is a main bearing contact surface during logging and plays roles of fixing and suspending; the whole logging sky pulley suspension device is preferably made of forged steel, and the tensile strength is greater than or equal to 29450 Kg. The ring body 1, the lower end connecting step 2, the connecting rod 3 and the bearing ring 4 form a T-shaped ring hard connecting structure.

This survey well sky pulley linkage, 1 lower extreme of tourus connects step 2, step 2 is electronic elevator trigger mechanism, and oil field drilling, workover adopt the top drive to drive electronic or pneumatic elevator at present more, and electronic or pneumatic elevator has designed the trigger device with oil pipe coupling external diameter size, and this mechanism is automatic locking when oil pipe bearing or the instrument that has the same size articulates when getting off oil pipe, prevents that artificial maloperation from causing the emergence of engineering accident. And the well logging sky pulley suspension device is just hung in the middle of the electric or pneumatic elevator during well logging. Because this trigger mechanism is not designed to early product, the accident takes place in the well logging construction occasionally, causes personnel's injury, equipment damage, logging instrument's well accident that falls, and the device has been specially designed during the improvement, is exactly the size of simulation tubing coupling external diameter, triggers automatic locking mechanism when the well logging construction, sees through the use of nearly two years and shows the effect, does not take place engineering accident together.

The use process of the hanging device for the logging sky pulley is that the hanging device is a common operation content in the oil field logging industry, and through the use of the hanging device, the soft connection adopted when the sky pulley in the oil field logging industry is connected is changed into hard connection, so that the hanging device is safer and more reliable. The specific using process is as follows: the logging team arrives at the site, the top-bottom pulley is connected for cable guiding, the ground pulley is fixed on a base of a drilling and workover platform through hard connection, the drilling and workover team is informed of the fact that a driller falls down to the top drive device and the plane of a drill floor, the logging top pulley suspension device is hung in the middle of an electric elevator of the top drive device, the driller closes an elevator valve, the top drive device is lifted, a logging instrument and a weighting rod are hung, and after the logging instrument is connected with the weighting rod, the automatic locking mechanism of the elevator is effectively triggered through bearing, so that the logging instrument can smoothly go into a well for logging.

1. The annular logging crown block suspension device replaces the connection between a steel wire rope sleeve and a crown block, and the original soft connection of the steel wire rope sleeve is changed into the hard connection of a T-shaped annular suspension device.

The disadvantage that original wire rope cover hung has been overcome in the device's application, because there is one section distance between sky pulley and the operation team elevator, and there is certain contained angle between ground pulley and the sky pulley in addition, can make the sky pulley produce and deflect, leads to logging cable to get off in-process friction well head, and is serious to logging cable wearing and tearing, and the device effectively reduces the damage of cable after coming into use, improves the security and the reliability of logging construction.

2. The well logging sky pulley suspension device is preferably made of forged steel, the forged steel is adopted because the forged steel has better mass than a steel casting and can bear larger impact force, the plasticity, the toughness and the mechanical properties in other aspects are higher than those of the steel casting, and important machine parts are forged steel. The tensile strength of the device is more than or equal to 29450 Kg. And during the stamping process, after the grain structure in the metal is deformed, the deformation process of the grains spreads out the whole metal part, and the forged part can be molded into a designed pattern. Therefore, the ductility of the forged steel is improved. The former has higher ductility and weight ratio than the latter in the case of forged steel compared to carbon steel.

When the engineering cutting logging or logging instrument meets the block, the tension of the logging cable is suddenly increased, and the connection mode of the top pulley is flexible connection, so that the top pulley is shaken to easily cause the cable to jump the groove and damage the logging cable. And the steel wire rope sleeve can lead to the fact that the wire rope is easy to jump wires and draw lots along with the increase of the service time, and uncontrollable engineering accidents are caused. The fundamental reason is that the tensile strength of the wire rope sling becomes weak, which causes unsafe factors. The device obviously overcomes the defect of soft connection by using the steel wire rope sleeve, has large tension and flexible and safer guiding.

3. The well logging system is convenient, flexible and strong in expansibility and is suitable for the well logging construction requirements of different modes. The top end of the lifting hook is designed into a special circular ring shape in consideration of using in various well logging lifting modes, so that the lifting hook can be used on an elevator on a derrick of an operation team or a drilling team, and is convenient to hang at the position of a lifting hook of a derrick car for use.

4. The safety trigger device for the top drive electric elevator is specially designed, and the self-locking safety device for the top drive electric elevator is triggered when bearing load.

At present, 50% of the teams in oil field operation teams and drilling teams adopt the elevator of the advanced top driving device, the existing steel wire rope sleeve connection mode is not suitable for a new mode of the top driving elevator, the self-locking device of the suspension device does not act very easily in the well logging process, the pulley of the well logging sky is caused to fall off, and the major accident of instrument well falling is caused.

5. This ring shape logging sky pulley linkage is connected with logging sky pulley and is adopted the connected mode of quick bolt, and the convenience is decomposed at on-the-spot quick assembly disassembly, improves the efficiency of construction.

6. The preferable technical indexes of the T-shaped circular ring suspension device are as follows, the length: 495 mm; width: 200 mm; thickness: 25 mm; tensile strength: 10 t.