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Double-head-adjusting eccentric measuring and adjusting plugging device

A technology of plugging and eccentricity, which is applied in the field of double-head adjustment and eccentricity measurement and adjustment plugging device, to achieve the effect of not easy to jam, easy to use and ensure reliability

Pending Publication Date: 2018-09-28
四川省科学城久利电子有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the plug can be pulled out and replaced by a fishing instrument without taking out all the water distributors. Even the water dispenser can be taken out completely, it is not easy to jam, and it can also be adjusted in two directions, which is convenient to use

Method used

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  • Double-head-adjusting eccentric measuring and adjusting plugging device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as Figure 1-2 As shown, the present invention includes a double-head adjustment eccentric measuring and adjusting plug, including an upper butt joint rod 1, an intermediate cylinder 4, a limit cam 5, an upper adjustment rod 6, a water outlet cylinder 9, a valve core 11 and a lower adjustment rod 12. The bottom of the middle cylinder 4 is connected to the top of the water outlet cylinder 9, the bottom of the upper butt joint rod 1 is inserted into the upper part of the middle cylinder 4 and screwed with the middle cylinder 4, and a limit cam 5 is also set inside the middle cylinder 4, and the limit cam 5 is two The side pins are connected to both sides of the middle cylinder 4, the limit cam 5 can rotate around the pin shaft, the limit cam 5 is located below the upper docking rod 1, and the lower end of the upper docking rod 1 is snapped into the slot on the top of the limit cam 5 The upper adjusting rod 6 is located in the cavity of the middle tube 4 and the water...

Embodiment 2

[0033] This embodiment is preferably as follows on the basis of Embodiment 1: the top of the valve core 11 is also covered with a valve core spring 10 . There is a buffer spring at 12 places of the plug spool, and the spool has an appropriate amount of swimming allowance along the axial direction. When the taper surface of the spool engages with the taper surface of the lower adjusting rod, the spring of the spool is compressed to achieve the buffering effect, and at the same time ensures Cone seal reliability. The spool 12 can be translated in an appropriate amount along the axial direction of the adjusting rod, and reset under the action of the spool spring 10 ; the upper adjusting rod 6 and the spool 12 are in an elastic contact state when engaged.

[0034] The lower part of the cone surface of the plug valve core is a cylinder, which cooperates with the gap between the cone surface of the lower adjustment rod and the central water hole, and the water volume can be changed ...

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Abstract

The invention discloses a double-head-adjusting eccentric measuring and adjusting plugging device. The double-head adjusting eccentric measuring and adjusting plugging device includes an upper buttingrod, an intermediate cylinder, a limiting cam, an upper adjusting rod, a water outlet cylinder, a valve element and a lower adjusting rod. The bottom of the intermediate cylinder is connected with the top of the water outlet cylinder, the bottom of the upper butting rod is inserted into the upper part of the intermediate cylinder and is in threaded connection with the intermediate cylinder, and the limiting cam is further arranged in the intermediate cylinder. The two sides of the limiting cam are connected with the two sides of the intermediate cylinder by pin shafts, the limiting cam is located below the upper butting rod, and the lower end of the upper butting rod is clamped into a clamping groove in the top of the limiting cam. The upper adjusting rod is located in a cavity of the intermediate cylinder and a cavity of the water outlet cylinder simultaneously, the top of the upper adjusting rod vertically penetrates through the limiting cam and is coupled with a flat hole in the bottom of the upper butting rod, the bottom of the upper adjusting rod is flexibly connected with the top of the valve element, and the conical surface of the bottom of the valve element is located at the top of the lower adjusting rod. According to the principles, the plugging device can be replaced after being removed with a throwing-in-and-pulling instrument, a water distributor needs not to be taken out integrally, clamping and plugging is not prone to occurring, two-way adjustment can also be carried out, and use is convenient.

Description

technical field [0001] The invention relates to the field of water injection and oil displacement in oil fields, in particular to a double-head adjusting eccentric measuring and adjusting plug. Background technique [0002] Water flooding is the main method of oil recovery in major oilfields in China. At present, major oilfields mainly use conventional eccentric or concentric mechanical water distributors, and various intelligent water distributors are also being tried. Conventional eccentric or concentric water distributors are subject to seal inspection, complex measurement and adjustment process, high logging cost, cumbersome steps, and large errors; intelligent water distributors are an inevitable trend of technological development. The plug is a very important tool in the water injection process, and it is a fragile tool. It is easy to cause the plug to fail due to abnormal conditions such as sediment jamming, valve core wear, and even adjustment rod breakage. At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B34/06
CPCE21B34/06E21B43/20
Inventor 涂高鹏陈军刘黄莹赵晓鹏赵海云夏涛张良
Owner 四川省科学城久利电子有限责任公司
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