CN104018801B - Wellhead Protection Agency - Google Patents

Wellhead Protection Agency Download PDF

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Publication number
CN104018801B
CN104018801B CN 201410224597 CN201410224597A CN104018801B CN 104018801 B CN104018801 B CN 104018801B CN 201410224597 CN201410224597 CN 201410224597 CN 201410224597 A CN201410224597 A CN 201410224597A CN 104018801 B CN104018801 B CN 104018801B
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CN
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CN 201410224597
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Chinese (zh)
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CN104018801A (en )
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谭正怀
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成都来宝石油设备有限公司
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Abstract

本发明公开了井口保护机构,包括顶圈(1)、多块连接钢板(2)、卡盘(3)和多块三角支撑件(5),所述的多块连接钢板(2)两端分别通过螺栓固定在顶圈(1)和卡盘(3)之间,多块连接钢板(2)均同时垂直于顶圈(1)和卡盘(3);所述的卡盘(3)的中心设置有锁紧环(4),锁紧环(4)的外壁采用多块三角支撑件(5)进行均匀固定,多块三角支撑件(5)均垂直固定在卡盘(3)的上表面上。 The present invention discloses a wellhead protection mechanism, comprising a top ring (1), a plurality of connecting plate (2), the chuck (3) and a plurality of triangular support (5), said plurality of connecting plate (2) at both ends are bolted to the top ring (1) and the chuck (3) between a plurality of connecting plate (2) simultaneously both perpendicular to the top ring (1) and the chuck (3); said chuck (3) the center is provided with a locking ring (4), the outer wall of the locking ring (4) using a plurality of triangular support (5) fixed uniformly, a plurality of triangular support members (5) are vertically fixed on the chuck (3) on the upper surface. 本发明通过上述结构,井口装置在径向载荷、套管重量作用的拉伸载荷和井内压力载荷方面均得到提升,使该装置不易变形,保证井下工具的通过,提高油田生产率和经济效益。 By the above construction of the present invention, the radial load in the wellhead, the weight of the casing and the well tensile load pressure loads respects be enhanced, so that the apparatus is not easy deformation, it is guaranteed by the downhole tool, improving productivity and economic fields.

Description

井口保护机构 Wellhead Protection Agency

技术领域 FIELD

[0001 ]本发明涉及钻井领域,具体涉及井口保护机构。 [0001] The present invention relates to the field of drilling, particularly relates to a wellhead protection mechanism.

背景技术 Background technique

[0002]在石油、天然气钻井中,通常在井口安装用于控制气、液(油、水等)流体压力和方向,用于悬挂套管、油管、并密封油管与套管及各层套管环形空间的装置。 [0002] In the oil and gas drilling, usually installed in the wellhead for controlling gas and liquid (oil, water, etc.) and direction of fluid pressure, for hanging casing, tubing, and seals the casing and the tubing and casing layers means of the annular space. 而用于套管悬挂装置所受到的载荷主要有雏形台阶作用的径向载荷、套管重量作用的拉伸载荷和井内压力载荷。 Mainly used in the prototype step function by means of a casing hanger load radial load, the weight of the well casing and the tensile load pressure loads. 套管悬挂装置应能够承受所悬挂的套管柱重,才不至于产生缩颈变形而影响井下工具的通过。 Casing hanger device should be capable to withstand the weight of the suspended casing string, it is not produced by deformation of the impact constriction downhole tool. 现有的井口装置在径向载荷、套管重量作用的拉伸载荷和井内压力载荷方面做的不到位,在使用过程中容易产生变形影响井下工具的通过。 Conventional wellhead in the radial load, the weight of the casing and the well tensile load pressure loads aspects do not in place, prone to the influence by the deformation of the downhole tool during use. 为促进油田勘探开发生产,随钻测井,提高油田生产率和经济效益,对井口装置的改进迫在眉睫。 In order to promote exploration and development of oil field production, logging while drilling, oilfield improve productivity and economic benefits of improved wellhead imminent.

发明内容 SUMMARY

[0003]本发明克服了现有技术的不足,提供井口保护机构,该井口装置在径向载荷、套管重量作用的拉伸载荷和井内压力载荷方面均得到提升,使该装置不易变形,保证井下工具的通过,提高油田生产率和经济效益。 [0003] The present invention overcomes the disadvantages of the prior art, to provide protection mechanism wellhead, the wellhead in which the radial load, tensile load and the weight of the well pressure loads aspect casing are enhanced, so that the apparatus is not easy to deform, to ensure downhole tool by improving productivity and economic fields.

[0004]为解决上述的技术问题,本发明采用以下技术方案:井口保护机构,包括顶圈、多块连接钢板、卡盘和多块三角支撑件,所述的多块连接钢板两端分别通过螺栓固定在顶圈和卡盘之间,多块连接钢板均同时垂直于顶圈和卡盘;所述的卡盘的中心设置有锁紧环,锁紧环的外壁采用多块三角支撑件进行均匀固定,多块三角支撑件均垂直固定在卡盘的上表面上。 [0004] In order to solve the above technical problem, the present invention employs the following technical solution: wellhead protection mechanism, comprising a top ring, a plurality of connecting plate, and a plurality of chuck triangular support member, said connecting pieces at both ends of the steel sheet respectively bolted between the top ring and the chuck, a plurality of steel plates are simultaneously connected to the top ring and the chuck vertical; the center of the chuck is provided with a locking ring, the outer wall of the locking ring using a plurality of triangular support members for fixed uniformly, a plurality of triangular support members are vertically fixed to the upper surface of the chuck. 在卡盘上设置锁紧环对套管进入方向进行控制,而锁紧环外围设置多块三角支撑板和多块连接钢板对其进行支撑紧固,提升井内压力荷载。 Locking ring provided on the chuck into the casing to control the direction and the peripheral locking ring is provided and a plurality of triangular support plate a plurality of connecting plate supporting it is fastened to enhance the well pressure loads. 设置的顶圈为刚性材料制作而成,底部利用连接钢板支撑,连接钢板与顶圈之间利用螺栓进行连接,连接钢板使用一段时候后还可对其进行更换保证该装置的径向荷载。 Provided for the top ring made of a rigid material, connected to the bottom by the support plate, is connected with a bolt connection between the plate and the top ring, connecting plate used for some time also after its replacement to ensure that the radial load of the apparatus. 各连接钢板之间存在一定宽度的缝隙,可提高其重量作用的拉伸荷载,使该装置不易变形,提高油田的生产率和经济效益。 There is a gap of constant width between each of the connection plate, which can increase the weight of the tensile load, so that the apparatus is not easy deformation, improving productivity and economic field.

[0005]所述的卡盘底部均匀设置多个凹槽。 The bottom of the [0005] plurality of grooves disposed uniformly chuck. 增大底部摩擦。 Increasing bottom friction.

[0006]所述的锁紧环卡紧于多块连接钢板所围成的圆柱形腔体内。 The [0006] locking ring clamping the cylindrical cavity of the plurality of connecting plate surrounded. 相互制约相互支撑限制。 Mutual restraint mutual support restrictions.

[0007]所述的卡盘的上表面上还设置有多个固定螺栓。 The upper surface of the chuck according to [0007] further provided with a plurality of fixing bolts. 可将卡盘进行牢固固定。 The chuck may be fixedly secured.

[0008]相邻两连接钢板之间所形成的缝隙宽度相等。 [0008] equal to the width of the slit formed between two adjacent joining plates.

[0009]所述的卡盘为正八边形。 Chuck [0009] according to a regular octagon.

[0010]与现有技术相比,本发明的有益效果是: [0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1、本发明采用该结构,井口装置在径向载荷、套管重量作用的拉伸载荷和井内压力载荷方面均得到提升,使该装置不易变形,保证井下工具的通过,提高油田生产率和经济效益。 [0011] 1, the present invention employs a configuration, the radial load in the wellhead, the well pressure load and tensile load of the weight of the aspects of the sleeve are enhanced, so that the apparatus is not easy deformation, is guaranteed by the downhole tool, and to improve productivity oil economic benefits.

[0012] 2、在卡盘的底部设置多个凹槽,能增大底部摩擦,并且其中的连接钢板与卡盘和顶圈之间均通过螺栓进行连接固定,当连接钢板磨损还可对其进行更换,保证其承压能力。 [0012] 2, disposed at the bottom of the chuck plurality of recesses, bottom friction can be increased, and wherein the connection between the chuck and the top plate and the ring are fixed by a bolt connection, when the wear plate may also be connected to its be replaced, to ensure its bearing capacity.

附图说明 BRIEF DESCRIPTION

[0013]图1为本发明的结构示意图。 [0013] FIG. 1 is a schematic structural diagram of the present invention.

[0014]图中附图标记分别表示为:1、顶圈;2、连接钢板;3、卡盘;4、锁紧环;5、三角支撑件;6、固定螺栓;7、凹槽。 [0014] FIG numerals are denoted in the figures: 1, the top ring; 2, connecting plate; 3, chuck; 4, locking ring; 5, triangular support member; 6, a fixing bolt; 7, recess.

具体实施方式 detailed description

[0015]下面结合附图对本发明作进一步阐述,本发明的实施例不限于此。 [0015] DRAWINGS The present invention will be further explained, embodiments of the present invention is not limited thereto.

[0016] 实施例: [0016] Example:

[0017]如图1所示,本发明包括顶圈1、多块连接钢板2、卡盘3和多块三角支撑件5,卡盘3底部均匀设置多个凹槽7,卡盘3为正八边形,卡盘3的上表面上还设置有多个固定螺栓6。 [0017] As shown in FIG. 1, the present invention comprises a top ring 1, a plurality of connecting plate 2, 3 and a plurality of chuck triangular support member 5, a bottom 3 a plurality of grooves disposed uniformly chuck 7, the chuck 3 is n-eight polygonal, provided on an upper surface of the chuck 3 has a plurality of fixing bolts 6. 本实施例的多块连接钢板2两端分别通过螺栓固定在顶圈I和卡盘3之间,多块连接钢板2均同时垂直于顶圈I和卡盘3。 A plurality of connecting plate 2 according to the present embodiment, both ends are bolted between the I and the chuck top ring 3, a plurality of connecting plate 2 are simultaneously perpendicular to the top ring and the chuck 3 through I. 本实施例的卡盘3的中心设置有锁紧环4,锁紧环4的外壁采用多块三角支撑件5进行均匀固定,多块三角支撑件5均垂直固定在卡盘3的上表面上。 Center of the chuck 3 according to the present embodiment is provided with a locking ring 4, the outer wall of the locking ring 4 using a plurality of triangular support 5 is fixed uniformly, 5 are vertically fixed on the chuck 3 supports a plurality of cam surface member . 其中的锁紧环4卡紧于多块连接钢板2所围成的圆柱形腔体内,相邻两连接钢板2之间所形成的缝隙宽度相等。 Wherein the locking ring 4 clamped to the cylindrical cavity a plurality of connecting plate 2 surrounded by the equal gap width formed between two adjacent connecting plate 2.

[0018]在卡盘上设置锁紧环对套管进入方向进行控制,而锁紧环外围设置多块三角支撑板和多块连接钢板对其进行支撑紧固,提升井内压力荷载。 [0018] The locking ring is provided to control the direction of the sleeve into the chuck, and the periphery of the locking ring is provided and a plurality of triangular support plate a plurality of connecting plate supporting it is fastened to enhance the well pressure loads. 设置的顶圈为刚性材料制作而成,底部利用连接钢板支撑,连接钢板与顶圈之间利用螺栓进行连接,连接钢板使用一段时候后损坏还可对其进行更换保证该装置的径向荷载。 Provided for the top ring made of a rigid material, connected to the bottom by the support plate, is connected with a bolt connection between the plate and the top ring, for some time use the connecting plate can also be damaged after the replacement of the device to ensure that the radial load. 各连接钢板之间存在一定宽度的缝隙,可提高其重量作用的拉伸荷载,使该装置不易变形,提高油田的生产率和经济效益。 There is a gap of constant width between each of the connection plate, which can increase the weight of the tensile load, so that the apparatus is not easy deformation, improving productivity and economic field.

[0019]如上所述便可实现该发明。 The invention can be implemented [0019] described above.

Claims (4)

  1. 1.井口保护机构,其特征在于:包括顶圈(I)、多块连接钢板(2)、卡盘(3)和多块三角支撑件(5),所述的多块连接钢板(2)两端分别通过螺栓固定在顶圈(I)和卡盘(3)之间,多块连接钢板(2)均同时垂直于顶圈(I)和卡盘(3);所述的卡盘(3)的中心设置有锁紧环(4),锁紧环(4)的外壁采用多块三角支撑件(5)进行均匀固定,多块三角支撑件(5)均垂直固定在卡盘(3)的上表面上;所述的卡盘(3)底部均匀设置多个凹槽(7);所述的锁紧环(4)卡紧于多块连接钢板(2)所围成的圆柱形腔体内。 Wellhead protection mechanism comprising: a top ring (the I), a plurality of connecting plate (2), the chuck (3) and a plurality of triangular support (5), said plurality of connecting plate (2) both ends between the top ring (I) and the chuck (3), a plurality of connecting plate by means of bolts (2) are perpendicular to the top ring while (I) and the chuck (3); said chuck ( 3) is provided with a central locking ring (4), the outer wall of the locking ring (4) using a plurality of triangular support (5) fixed uniformly, a plurality of triangular support members (5) are vertically fixed in the chuck (3 ) on the upper surface; said chuck (3) a plurality of grooves disposed uniformly bottom (7); said locking ring (4) to clamp a plurality of connecting plate (2) surrounded by the cylindrical cavity.
  2. 2.根据权利要求1所述的井口保护机构,其特征在于:所述的卡盘(3)的上表面上还设置有多个固定螺栓(6 )。 The wellhead protection mechanism according to claim 1, wherein: there is further provided a plurality of fixing bolts (6) on the upper surface of the chuck (3).
  3. 3.根据权利要求1所述的井口保护机构,其特征在于:相邻两连接钢板(2)之间所形成的缝隙宽度相等。 According to claim wellhead protection mechanism of claim 1, wherein: two adjacent connecting plate is formed between the slit width (2) are equal.
  4. 4.根据权利要求1所述的井口保护机构,其特征在于:所述的卡盘(3)为正八边形。 According to claim wellhead protection mechanism of claim 1, wherein: said chuck (3) is a regular octagon.
CN 201410224597 2014-05-27 2014-05-27 Wellhead Protection Agency CN104018801B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7793719B2 (en) * 2000-04-17 2010-09-14 Weatherford/Lamb, Inc. Top drive casing system
CN202273632U (en) * 2011-10-28 2012-06-13 江苏曙光石油钻采设备有限公司 Horizontal position adjusting structure for sleeve head clamping device
CN202900112U (en) * 2012-12-03 2013-04-24 东北石油大学 Wellhead sleeve fixator
CN103210175A (en) * 2010-11-16 2013-07-17 阿克海底公司 Bop lock down
CN203847039U (en) * 2014-05-27 2014-09-24 成都来宝石油设备有限公司 Well head protective device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7793719B2 (en) * 2000-04-17 2010-09-14 Weatherford/Lamb, Inc. Top drive casing system
CN103210175A (en) * 2010-11-16 2013-07-17 阿克海底公司 Bop lock down
CN202273632U (en) * 2011-10-28 2012-06-13 江苏曙光石油钻采设备有限公司 Horizontal position adjusting structure for sleeve head clamping device
CN202900112U (en) * 2012-12-03 2013-04-24 东北石油大学 Wellhead sleeve fixator
CN203847039U (en) * 2014-05-27 2014-09-24 成都来宝石油设备有限公司 Well head protective device

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