CN103382816A - Device for removing cuttings bed in horizontal well and preventing suction in tripping-out blockage - Google Patents

Abstract

The invention discloses a device for removing a cuttings bed in a horizontal well and preventing suction in tripping-out blockage. Before tripping-out, two safety rope rings are tied to a safe hoisting ring, one safety rope ring is hoisted and the other safety rope ring is hung in a hook block; the top end of a drilling tool upright post is connected with the device, and an union at the other end of an elbow of the device is connected with a water hose; drilling cuttings struck from a cuttings bed by a centralizer and a drill bit can be timely removed with the method of simultaneous tripping-out and circulation; timely and effective grouting in a tripping-out blockage well section can be ensured with the method of simultaneous circulation and tripping-out in the tripping-out process in the tripping-out blockage well section, particularly a shallow air layer; a drill stem is tripped out to a racking platform; a hook of an air winch is hung into one safety rope ring to hoist the device, and the other safety rope ring hung in the hook block is taken out, then a hammer is used for knocking a knocking block in a reverse direction, so that seal between the device and the top end of a drilling tool is loose; a drilling tool connector of the device is dismounted from the top end of the drilling tool upright post manually, and the air winch is used for putting the device and the water hose down to a drill floor surface for repeated operation.

Description

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

Technical field

The effectively anti-suction of grouting when the present invention relates to that Cutting Disposal and trip-out pull out piston in incline shaft petroleum, high angle hole, extended reach well, horizontal well drilling avoids aspirating the gas blowout accident of initiation.

Background technology

Use traditional MTR inclined shaft, high angle hole, extended reach well, when horizontal well creeps into except bit, other drilling tool is attached to all the time on the lower borehole wall and slides, landwaste easily is deposited on borehole wall formation cutting bed under well in moving process, give and to be removed the completion tubular string, setting of casing causes difficulty, and very easily causes lock of tool drilling.Realize only having in the past accurate increasing hole angle, hold angle, the drop angle that traditional MTR could 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) when creeping into that slide so be widely used in.PowerVDrive, is conducive to moving of landwaste, thereby better cleans well in rotation due to all drilling tools in combination in drilling process, has greatly reduced the chance that forms cutting bed.Dispose the rig that drives of top and can realize easily that the limit makes a trip, rotate on the limit, the purpose of limit circulation, the method that plays lower pillar stand, limit rotation drilling tool, limit circulation by the limit when making a trip can in time be moved the landwaste on the cutting bed that drill bit and centralizer stirred.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.Conventional drilling equipment can not realize when making a trip that the 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, because can not timely and effectively being in the milk, very easily cause gas blowout accident because of suction when especially pulling out piston in the trip-out of Shallow Gas Wells.

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

Summary of the invention

Do not use the top to drive the many drawbacks that exist with the well of rotary steering system PowerDrive for situ of drilling well, purpose of the present invention has aimed to provide a kind of removing horizontal well cutting bed and trip-out and has pulled out the anti-aspirator of piston, and this device adopts the circulating connection that is connected on the drilling rod top and the standby hose of pair standpipes to link.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 when 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 objective of the invention is to complete 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 invention and generation is:

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

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

Description of drawings

Fig. 1 is that the present invention assembles 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 the safe becket bridle 8 of slinging before the well section pulls out of hole the safe becket bridle 8 of another root hung in hook block, this device is because there being rotating short-knot 3, can be easily connect the tool joint 1 of this device on drilling tool column top, knock with hammer the sealing that piece 2 can be realized this device and drilling tool column top again, is connected with another root hose of two standpipes the oily ninth of the ten Heavenly Stems 6 of this device elbow other end and can realizes circulating on the drilling tool top and the purpose of slip casting.Can in time remove and move the drilling cuttings from cutting bed is stirred by centralizer and drill bit by the method that the limit removes, circulate in the limit, reach the purpose of in time disposing landwaste on cutting bed.Up and down reciprocatingly severally totally lay down this device in the drilling floor surface position and both can trip out the operation that column repeats next column afterwards all over the landwaste on drill bit institute corresponding well section cutting bed under rise column is removed, until till having the landwaste of cutting bed well section clean out.

install this device to drilling tool column crown end at drilling floor surface when pull out of hole dialling piston well section especially shallow gas pay well section pulling 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 this device of slinging in the 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 that drives in the timely and effective grouting of group piston well section that pulls out of hole, avoid the gas blowout accident that causes 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) upward 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 to hang in hook in safe hoisting ring (7).

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