Full-working-condition annular testing well head device
A wellhead device, full working condition technology, applied in surveying, wellbore/well components, earth-moving drilling, etc., can solve problems such as mutual influence between test steel wire and oil production equipment
Pending Publication Date: 2016-01-20
马志
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Problems solved by technology
In order to realize the dynamic test of the annular space of the downhole tubing and casing under the normal production of the pumping unit, and provide reliable data and information for the development process of the oil field in real time, it is necessary to install the test equipment at the same time, but generally it can be used for oil production, The wellhead equipment integrated with the test, due to its compact installation position with the test device, oil outlet pipeline and other equipment, especially due to the structural limitations of inclined wells and horizontal wells, when the oil outlet adopts high-level oil outlet, the test steel wire and the outlet often occur. The problem of mutual influence of oil equipment
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[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] Such as figure 1 The schematic diagram of the full working condition annulus testing wellhead device of this embodiment shown includes a base 11, an outer hanger 9 is supported by the base 11, and a hanger 5 is set inside the outer hanger 9. The lower end of the outer hanger 9 is sleeved in the base 11, and the upper end of the outer hanger 9 is provided with an outer hanger suspension protrusion. Suspension protrusion of the device, so that the outer hanger 9 is suspended and fixed. In order to realize the rotation of the outer hanger 9, a first thrust bearing 72 is set between the protrusion of the outer hanger 9 and the upper surface of the side wall of the base 11. The outer hanger 9 is provided with a suspension hole for hanging the hanger 5 and a test hole through which a test instrument passes, the hanger 5 is provided with a hanger suspension protrusion...
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The invention discloses a full-working-condition annular testing well head device which is mainly researched and designed oriented to the problems that an oil production well head annular testing device is not suitable for an inclined well and a horizontal well. The full-working-condition annular testing well head device comprises a base, an outer hanger is hung in the base, a hanger is hung in the outer hanger, the hanger is provided with an oil outlet hole and a first oil outlet, the outer hanger is provided with a testing hole and a second oil outlet, the side face of the base is provided with a third oil outlet, the oil outlet hole, the first oil outlet, the second oil outlet and the third oil outlet are communicated in sequence, and thrust bearings are arranged at the hanging positions between the outer hanger and the base and between the outer hanger and the hanger. According to the full-working-condition annular testing well head device, the oil outlet is formed in the side face of the base, and thus the problem that when a tee joint discharges oil at a high position, an oil outlet pipeline installed above the upper portion of a space of the base is likely to have mutual influence with installation and use of a testing instrument.
Description
technical field [0001] The invention relates to the field of oil exploitation equipment, in particular to a wellhead device for annular space testing under all working conditions. Background technique [0002] Petroleum is an important energy source for contemporary industrial production and people's daily life. Its demand is increasing day by day, and the development of oil fields has made great progress. In order to increase production and improve production efficiency, annulus testing wellhead devices are increasingly used in oil fields. [0003] With the expansion of the development scope, the dynamics of oil and water in the ground have become more and more complex. In order to realize the dynamic test of the annular space of the downhole tubing and casing under the normal production of the pumping unit, and provide reliable data and information for the development process of the oil field in real time, it is necessary to install the test equipment at the same time, bu...
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Inventor 马志
Owner 马志