CN213419059U - Innovative inclined plane side drilling yield-increasing windowing whipstock with one-step double-seat hanging mechanism - Google Patents

Abstract

The utility model relates to an oil development auxiliary device's technical field especially relates to a slope sidetracking output of increasing production whipstock windowing whipstock is led to innovative type of a formula two sitting string machine system, including the whipstock assembly, whipstock assembly left end is the well head direction, and the right-hand member is the well direction, and whipstock assembly left end is provided with and cuts bolt assorted round hole, and the whipstock assembly includes left guide milling section, and the window section on the protruding section of step and the right side at middle part leads the slope part in whipstock assembly A department left side, leads the slope part and divide into the three-section: the upper part, the middle part and the lower part of the window of the sleeve are respectively corresponding to the three sections in working, the cross section of the part of the guide inclined plane, which is in contact with the milling tool, is arc-shaped, and the right end of the whipstock assembly is provided with an anchor and a hydraulic hanging pressure transmission device for fixing the whipstock assembly.

Description

Innovative inclined plane side drilling yield-increasing windowing whipstock with one-step double-seat hanging mechanism

Technical Field

The utility model relates to a technical field of oil development auxiliary device especially relates to the innovative oblique plane sidetracking output increase windowing whipstock of leading of a formula two sitting string mechanism.

Background

As an important component of petroleum supply and energy safety in China, the development of marine petroleum in recent years faces the problems of difficult stable production of petroleum, difficult production increase and insufficient replacement reserve, particularly, a plurality of oil production blocks enter the later development stage, and oil fields face great yield descending pressure, so that new technologies must be researched and utilized to solve the problems.

The windowing sidetracking drilling technology can fully utilize an original well bore, a new well bore and a guide hole are milled by a milling tool matched with the original well bore to a certain depth after the original well bore is set and hung, residual oil and 'desserts' of an oil-gas field are excavated in a targeted mode, and the old well is recycled, so that the aim of improving the oil yield is achieved.

The whipstock used by the existing windowing sidetrack drilling in China has the problems of time consumption in construction, poor tool material, over-short guide inclined plane, rough treatment, easy generation of steps and the like; the technology of the foreign whipstock is monopolized by foreign enterprises, so that the research of the high-efficiency whipstock with independent intellectual property rights is urgent.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an innovative oblique plane sidetracking output increase windowing whipstock is led to two string of mechanism of sitting of a formula.

The utility model discloses an innovative inclined plane sidetracking output increase of production whipstock windowing whipstock is led to two string of mechanism of sitting of a formula, including the whipstock assembly, whipstock assembly left end is the well head direction, and the right-hand member is the well direction, and whipstock assembly left end is provided with and shear bolt assorted round hole, and the whipstock assembly includes left guide milling section, and the window section on the protruding section of step and the right side at middle part leads the inclined plane part in whipstock assembly A department left side, leads the inclined plane part and divide into the three-section: the three sections respectively correspond to the upper part, the middle part and the lower part of a windowing window of the sleeve when in work, the cross section of the contact part of the guide slope part and the milling tool is arc-shaped, the right end of the whipstock assembly is provided with an anchor and a hydraulic sitting and hanging pressure transmission device for fixing the whipstock assembly, the anchor comprises a hydraulic sitting and hanging small piston, a hydraulic sitting and hanging large piston, a hydraulic mechanical sitting and hanging central rod, an anchor shell, a piston isolating ring, a spring, a push disc, a bottom shearing disc, a tail end cover, a sitting and hanging one-way slip, a mechanical sitting and hanging trigger device and a push rod, the anchor shell is connected with the whipstock assembly, the hydraulic mechanical sitting and hanging central rod is positioned in the anchor shell, and the hydraulic sitting and hanging small piston, the hydraulic sitting and hanging large piston and the piston isolating ring are all slidably mounted in the hydraulic mechanical sitting and hanging central rod, and the piston isolating ring is positioned between the hydraulic sitting hanging small piston and the hydraulic sitting hanging large piston, the sitting hanging one-way slip is installed on the whipstock assembly, the bottom shearing disc and the tail end cover are installed at the right end of the anchor, two ends of the spring are respectively contacted with the tail end cover and the push disc, and the whipstock assembly is provided with the sitting hanging one-way slip and a supporting slip.

Compared with the prior art, the beneficial effects of the utility model are that: the design of the guide inclined plane can lead the milling tool to quickly break the sleeve and deviate from the original old well eye; the drilling tool can also ensure that each step of windowing sidetrack drilling is complete, footage quantification is achieved, a large amount of field operation data show that the design of the guide slope enables a windowing window and a guide hole to be regular and full, the risk of drilling jamming is small, the uncertainty of operation is reduced, the anchor has the main function of fixing the whipstock assembly at the design depth in a shaft, the implementation process of the anchor is divided into three steps, and firstly, a bottom shearing pin is cut off by improving the discharge capacity or pressing down to a manual shaft bottom; secondly, when the shearing pin is sheared, the spring drives the push rod to move upwards to push the sitting and hanging one-way slip out of the whipstock assembly to be in contact with the well wall to generate initial sitting and hanging; thirdly, the whipstock and the upper windowing milling tool are separated by the lower pressing pipe column, 10-20 tons of downward pressure can be generated in the downward pressing process to seat and hang the one-way slip and the well wall to finish deep hanging, the whipstock after the seat and the hanging cannot descend and cannot rotate, the one-way slip and the supporting slip distributed at 180 degrees with the one-way slip are seated and hung, the seated and hung one-way slip is characterized by having a certain radian and being coupled with the groove surface at the bottom of the whipstock, the normal position of the seated and hung one-way slip cannot be popped out in advance before the seated and hung, in addition, the tooth arrangement of the seated and hung one-way slip has directionality, the hardness of the upward teeth towards left and right can reach more than HRC50 after modulation treatment, the supporting slip ensures that the whipstock can be centered as much as possible while the seated and hung

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of a circular hole

FIG. 3 is a schematic structural view of the anchor;

FIG. 4 is a schematic structural diagram of a sitting and hanging one-way slip and a supporting slip;

in the drawings, the reference numbers: 1. a whipstock assembly; 2. a small piston is hung on the hydraulic seat; 3. a large piston is hung in a hydraulic sitting mode; 4. the hydraulic machinery is used for hanging the center rod; 5. an anchor housing; 6. a piston isolating ring; 7. a spring; 8. pushing the disc; 9. a bottom shear disk; 10. a tail end cover; 11. hanging a one-way slip; 12. a mechanical sitting and hanging trigger device; 13. a push rod; 14. a hydraulic pressure transmission device is hung on the hydraulic seat; 15. an anchor; 16. a circular hole; 17. supporting slips.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the utility model discloses an innovative inclined plane sidetracking output increase of production whipstock of windowing is led to one trip of formula double-seat hanging mechanism, including whipstock assembly 1, the 1 left end of whipstock assembly is the well head direction, and the right-hand member is the well direction, and the 1 left end of whipstock assembly is provided with and cuts bolt assorted round hole 16, and whipstock assembly 1 includes left guide milling section, and the window section on the protruding section of step and the right side at middle part, and whipstock assembly 1A department left side is for leading the inclined plane part, leads the inclined plane part to divide into the three-section: the connecting circular hole 16 is connected with a top contact end, a middle lifting surface and a bottom window-out section, the three sections respectively correspond to the upper part, the middle part and the lower part of a sleeve windowing window during working, the cross section of a part of a guide inclined plane, which is in contact with a milling tool, is arc-shaped, the right end of the whipstock assembly 1 is provided with an anchor 15 and a hydraulic sitting and hanging pressure-transmitting device 14 for fixing the whipstock assembly 1, the anchor 15 comprises a hydraulic sitting and hanging small piston 2, a hydraulic sitting and hanging large piston 3, a hydraulic mechanical sitting and hanging center rod 4, an anchor shell 5, a piston isolating ring 6, a spring 7, a push disc 8, a bottom shearing disc 9, a tail end cover 10, a sitting and hanging one-way slip 11, a mechanical sitting and hanging trigger 12 and a push rod 13, the anchor shell 5 is connected with the whipstock assembly 1, the hydraulic mechanical sitting and hanging center rod 4 is positioned in the anchor shell 5, the hydraulic sitting and hanging small piston 2, the hydraulic sitting and hanging large piston 3, and the piston isolating ring 6 is positioned between the hydraulic sitting and hanging small piston 2 and the hydraulic sitting and hanging large piston 3, the sitting and hanging one-way slip 11 is installed on the whipstock assembly 1, the bottom shearing disc 9 and the tail end cover 10 are installed at the right end of the anchor 15, two ends of the spring 7 are respectively contacted with the tail end cover 10 and the push disc 8, and the whipstock assembly 1 is provided with a supporting slip 17. The design of the guide inclined plane can lead the milling tool to quickly break the sleeve and deviate from the original old well eye; the drilling tool can also ensure that each step of windowing sidetrack drilling is complete, footage quantification is achieved, a large amount of field operation data show that the design of the guide slope enables a windowing window and a guide hole to be regular and full, the risk of drilling jamming is small, the uncertainty of operation is reduced, the anchor 15 has the main function of fixing the whipstock assembly 1 at the design depth in a shaft, the implementation process of the anchor is divided into three steps, and firstly, a bottom shearing pin is cut off by improving the discharge capacity or pressing down to a manual well bottom; secondly, after the shearing pin is sheared, the spring 7 drives the push rod 13 to move upwards to push the sitting and hanging one-way slip 11 out of the whipstock assembly 1 to be in contact with the well wall to generate initial sitting and hanging; thirdly, the whipstock and the upper windowing milling tool are separated by the lower pressing pipe column, 10-20 tons of downward pressure can be generated in the downward pressing process to seat and hang the one-way slip 11 and the well wall to complete deep seat and hang, the whipstock after the seat and hang cannot move downwards and cannot rotate, the one-way slip 11 and the supporting slip 17 distributed at 180 degrees with the one-way slip 11 are seated and hung, the seat and hang one-way slip 11 is characterized in that a certain radian is coupled with the groove surface at the bottom of the whipstock, the normal position of the seat and hang cannot be popped out in advance before the seat and hang, in addition, the tooth arrangement of the seat and hang one-way slip 11 has directionality, the hardness of the upward, leftward and rightward teeth can reach more than HRC50 through modulation processing, and the supporting slip 17 ensures that the whipstock can be centered as far as possible while the seat and hang the whipstock.

The utility model discloses an innovative inclined plane sidetracking increase production of side drill of leading of one formula two hanging machine system whipstock, above the mounting means of all parts, connected mode or set up the mode and be the welding, riveting or other common mechanical means, wherein slidable/rotate fixedly promptly do not drop under the slip/rotation state, sealed intercommunication is sealed when two connecting pieces intercommunication, and the concrete structure of its all parts, model and coefficient index are its from the area technique, as long as can reach all can implement of its beneficial effect, above-mentioned all with electric module and with electric device common in the market, only need to connect according to the mutual electricity of the instruction manual of buying back when using and can use, and control module is its common from taking the module, the event is all no longer repeated here.

The present invention relates to a one-pass double-seat hanging mechanism innovative slant-guiding sidetrack drilling, production-increasing and windowing whipstock, and in the case where no reverse explanation is made, the directional words included in the terms "upper, lower, left, right, front, back, inner, outer, and vertical horizontal" are only representative of the direction of the term in the normal use state, or are colloquial terms understood by those skilled in the art, and should not be considered as limiting the term, and meanwhile, the terms "first", "second", "and" third ", are not representative of specific numbers and sequences, but are merely used for name differentiation, and the terms" include "," include "or any other variants thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes other elements for such a process, A method, article, or apparatus that is inherent to the element.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (1)

1. The utility model provides an innovative inclined plane sidetracking production increase windowing whipstock is led to two sitting string of mechanism of formula, a serial communication port, including whipstock assembly (1), whipstock assembly (1) left end is the well head direction, and the right-hand member is the well direction, and whipstock assembly (1) left end be provided with shear bolt assorted round hole (16), and whipstock assembly (1) includes left guide milling section, the window section of the protruding section of step and the right side at middle part, and whipstock assembly (1) A department left side is for leading the inclined plane part, leads the inclined plane part and divide into the three-section: the top contact end, the middle lifting face and the bottom window-out section of the connecting circular hole (16) respectively correspond to the upper part, the middle part and the lower part of a casing windowing window in working, the cross section of the contact part of the slope guiding part and the milling tool is arc-shaped, the right end of the whipstock assembly (1) is provided with an anchor (15) and a hydraulic sitting and hanging pressure transmitting device (14) which are used for fixing the whipstock assembly (1), the anchor (15) comprises a hydraulic sitting and hanging small piston (2), a hydraulic sitting and hanging large piston (3), a hydraulic mechanical sitting and hanging central rod (4), an anchor shell (5), a piston isolating ring (6), a spring (7), a push disc (8), a bottom shearing disc (9), a tail end cover (10), a sitting and hanging one-way slip (11), a mechanical sitting and hanging trigger device (12) and a push rod (13), and the anchor shell (5) is connected with the whipstock assembly (1), hydraulic pressure machinery is sat and is hung well core rod (4) and be in inside anchor casing (5), hydraulic pressure is sat and hangs little piston (2), hydraulic pressure is sat and is hung well piston (3) and equal slidable mounting of piston isolating ring (6) is sat and hang well core rod (4) at hydraulic pressure machinery to piston isolating ring (6) are in hydraulic pressure is sat and is hung little piston (2) and hydraulic pressure and sit and hang between well piston (3), sit and hang one-way slips (11) and install on whipstock assembly (1), the right-hand member at anchor (15) is installed in bottom shear disc (9) and afterbody end cover (10), spring (7) both ends respectively with afterbody end cover (10) and push disc (8) contact, are provided with on whipstock assembly (1) and support slips (17).

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