CN203334973U - Anti-suction device for horizontal well cutting bed removing, trip and piston pulling - Google Patents

Abstract

The utility model discloses an anti-suction device for horizontal well cutting bed removing, trip and piston pulling. Before trip, two safety rope rings are tied to a safety ring, one safety rope ring is hung and the other safety rope ring is hung in a block hook. The device is connected to the top end of a drilling tool upright and a hammer union at the other end of an elbow of the device is connected with a water hose. Drilling cuttings stirred from a cutting bed by a centralizer and a drill can be timely removed and moved through the method that trip and circulation are conducted at the same time. Timely and efficient grouting in the trip and piston pulling well section can be guaranteed when circulation and trip are conducted at the same time in the process trip of the trip and piston pulling well section, especially in the process of trip of a shallow gas layer. When a drill column is tripped to a racking platform, a pneumatic hoist hook is hung in one safety rope ring, and the device is hung. The other safety rope ring hung in the block hook is taken out, a knocking block is reversely knocked by a hammer, and therefore sealing of the device and the top end of a drilling tool can be loosened. A drilling tool joint of the device is manually unlinked with the top end of the drilling tool upright and the device and the water hose are put down by a pneumatic hoist and are taken to the drilling platform face for repeated operation.

Description

Remove horizontal well cutting bed and trip-out and pull out the anti-aspirator of piston

Technical field

The utility model relates to the effectively anti-suction of grouting when Cutting Disposal and trip-out pull out piston in incline shaft petroleum, high angle hole, extended reach well, horizontal well drilling, the gas blowout accident of avoiding suction to cause.

Background technology

Use traditional MTR when inclined shaft, high angle hole, extended reach well, horizontal well creep into except bit, other drilling tool is attached to all the time on the lower borehole wall and slides, landwaste easily is deposited on the borehole wall under well and forms cutting bed in moving process, give and to be removed the completion pipe string, setting of casing causes difficulty, and very easily causes lock of tool drilling.Realize accurate increasing hole angle, hold angle, the drop angle that only has in the past traditional MTR to realize or entangle the orientation function in the rotary drilling process and rotary steering system PowerDrive is drill string.Use MTR more difficult deep-well, high angle hole, extended reach well, horizontal well, the multi-lateral well (comprising the fishbone well) while creeping into that slide so be widely used in.PowerVDrive, in drilling process,, is conducive to moving of landwaste, thereby better cleans well in rotation due to all drilling tools in combination, has greatly reduced the chance that forms cutting bed.Dispose the rig that drives of top and can easily realize that limit makes a trip, rotate on limit, the purpose of limit circulation, the method that plays lower pillar stand, limit rotation drilling tool, limit circulation by limit while making a trip can be moved the landwaste on the cutting bed that drill bit and centralizer stirred in time.Also can be when pulling out of hole pull out the timely and effective mud grouting of piston well section and shallow gas pay well Duan Bianqi drill string limit.Can not realize when conventional drilling equipment makes a trip that limit makes a trip, the landwaste on the method Cutting Disposal of limit rotation, limit circulation.Very easily aspirate when undergauge well section pulls out of hole, while especially in the trip-out of Shallow Gas Wells, pulling out piston, because can not timely and effectively being in the milk, very easily because of suction, cause gas blowout accident.

While using rotary steering system and top to drive, because of expensive, use cost is high, can significantly increase drilling cost.

Summary of the invention

For situ of drilling well, do not use top to drive the many drawbacks that exist with the well of rotary steering system PowerDrive, the purpose of this utility model has aimed to provide a kind of removing horizontal well cutting bed and the anti-aspirator of piston is pulled out in trip-out, and this device adopts a circulating connection that is connected on the drilling rod top to link with the standby hose of two standpipes.In removing the drill-pipe stand process limit remove, limit circulation, the landwaste on the cutting bed that drill bit and centralizer have been stirred is moved out.In the timely and effective grouting while pulling out piston that pulls out of hole of the well section of undergauge very easily and shallow gas pay well section, prevent suction, avoid the generation of gas blowout accident.

The purpose of this utility model completes like this: remove horizontal well cutting bed and trip-out pull out the anti-aspirator of piston mainly by tool joint, knock and form in piece, rotating short-knot, oil ninth of the ten Heavenly Stems, elbow, oil ninth of the ten Heavenly Stems, safe hoisting ring, safe becket bridle, on the tool joint body, piece is knocked in the boring welding, top connects rotating short-knot, connect the oily ninth of the ten Heavenly Stems on rotating short-knot, elbow one end is connected with oil with rotating short-knot the ninth of the ten Heavenly Stems, another hair oil is connected with hose the ninth of the ten Heavenly Stems, safe hoisting ring is arranged at the elbow top, fastens two safe becket bridles can hanging in hook in safe hoisting ring.

The beneficial effect of advantage of the present utility model and generation is:

1, the utility model simple in structure, be easy to processing, easy to operate, the method that removes the circulation of thribble, limit by limit can be disposed the landwaste on inclined shaft that drill bit and centralizer stirred, high angle hole, extended reach well, horizontal well cutting bed in time.

2, limit is played the circulation of drilling tool, limit and can be supplemented in time the well section of undergauge very easily and the shallow gas pay well section space that while pulling out piston, suction forms that pulls out of hole, and reaches timely and effective grouting, prevents suction, avoids the gas blowout accident generation.

The accompanying drawing explanation

Fig. 1 is the utility model assembling schematic diagram.

The specific embodiment

As shown in Figure 1, a kind of removing horizontal well cutting bed and trip-out pull out the anti-aspirator of piston mainly by tool joint 1, knock and form in piece 2, rotating short-knot 3, oil ninth of the ten Heavenly Stems 4, elbow 5, oil ninth of the ten Heavenly Stems 6, safe hoisting ring 7, safe becket bridle 8.On tool joint 1 body, piece 2 is knocked in the boring welding, top connects rotating short-knot 3, connect the oily ninth of the ten Heavenly Stems 4 on rotating short-knot 3, elbow 5 one ends are connected with rotating short-knot 3 use oil the ninth of the ten Heavenly Stems 4, another hair oil is connected with hose the ninth of the ten Heavenly Stems 6, safe hoisting ring 7 is arranged at elbow 5 tops, fastens two safe becket bridles 8 can hanging in hook in safe hoisting ring 7.

Inclined shaft, high angle hole, extended reach well, horizontal well and the easy undergauge of estimating to have cutting bed aspirates before the well section pulls out of hole the safe becket bridle 8 of slinging the safe becket bridle 8 of another root hung in hook block, this device is because there being rotating short-knot 3, can easily on drilling tool column top, connect the tool joint 1 of this device, knock with hammer the sealing that piece 2 can be realized this device and drilling tool column top again, be connected the purpose that can realize in drilling tool top circulation and slip casting with another root hose of two standpipes the oily ninth of the ten Heavenly Stems 6 of this device elbow other end.Can remove in time and move the drilling cuttings from cutting bed is stirred by centralizer and drill bit by the method that limit removes, circulate in limit, reach the purpose of disposing in time landwaste on cutting bed.Up and down reciprocatingly several all over after the removing totally of the landwaste on drill bit institute corresponding well section cutting bed under risen column, in the drilling floor surface position, laying down this device, both tripping out the operation that column repeats next column again, until there being the landwaste of cutting bed well section to clean out.

Group piston well section that pulls out of hole installs this device to drilling tool column crown end at drilling floor surface when especially shallow gas pay well section pulls out of hole, pour into mud during trip-out while rising, when drill string trips out, this device also arrives quadruple board platform with drill string, after termination of pumping, the rigger oppositely knocks piece 2 at safety platform with hammer and can loosen being connected of this device and drilling tool top, the compressed air hoist hook is hung into this device of slinging in a safe becket bridle 8, the rigger dismantles the tool joint 1 of this device on drilling tool column top, compressed air hoist this device of slinging, the rigger takes out the safe becket bridle 8 of another root of hanging in hook, putting down this device and the fire hose with compressed air hoist takes drilling floor surface to and again carries out repetitive operation, can guarantee not used the rig driven in the timely and effective grouting of group piston well section that pulls out of hole, avoid the gas blowout accident caused because of suction.

Claims (1)

1. remove the horizontal well cutting bed and trip-out is pulled out the anti-aspirator of piston mainly by tool joint (1) for one kind, knock piece (2), rotating short-knot (3), the oily ninth of the ten Heavenly Stems (4), elbow (5), the oily ninth of the ten Heavenly Stems (6), safe hoisting ring (7), safe becket bridle (8) forms, it is characterized in that on tool joint (1) body, piece (2) is knocked in the boring welding, top connects rotating short-knot (3), rotating short-knot (3) above connects the oily ninth of the ten Heavenly Stems (4), elbow (5) one ends are connected with the oil ninth of the ten Heavenly Stems (4) with rotating short-knot (3), another hair oil ninth of the ten Heavenly Stems (6) is connected with hose, safe hoisting ring (7) is arranged at elbow (5) top, fasten the two safe becket bridles (8) that can hang in hook in safe hoisting ring (7).

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