Shengli Oilfield R&T Group

Casing hanger also has a main seal and seal design, the main casing hangers types are rubber seal and seal USES is square type "O" ring seal in the form of combination of vice seal is to use "BT" sealing ring and sealing grease (PTFE) was injected through the seal. 1. Seal ring leakage of two flange joints. If leakage occurs in the sealing gasket ring of the two flange joints, the main seal or secondary seal of the casing hanger has been leaked, and it may be that both the main seal and the secondary seal are leaking. The cause of the main seal leakage is square seal is damaged or heat expansion will casing pipe hanger upward lift, causing party type sealing ring seal effect, so should pay special attention to when the casing hanger, square seal damage can not be cut. The reason for the secondary seal leakage is that the "BT" sealing ring cannot be sealed. (PTFE should be injected into the "BT" sealing ring after the tubing head is connecte...

R&T group introduce you the details of casing hanger, which you should know as an oilfield worker. 1. Thread casing hanger. Thread type (i.e., screw-type) casing hanger, the equivalent of a casing collar, without cutting casing (W and WE both need to) save trouble, don't even open the bop can suspension bushing, solve the problem of wellhead suspension seal. But you need to calculate the depth of the casing to avoid the bottom. Generally used in relatively stable production well. The general mandrel (thread type) hanger is used with the threaded casing head, and the corresponding slip hanger can also be replaced. The seal principle of the sleeve head metal and rubber seal is the same as that of the tubing head metal and rubber seal. CASING HANGER BY R&T Group 2. Slip casing hanger. A. The structure of the slip casing hanger: The kava hanger is mainly made up of kava (quartile), kava (two equal parts), rubber seal (two equal parts), supporting seat (two equal pa...

shengli oilfield The technology of recovery recovery is improved. The technology for the adjustment of oil flow field in the later stage of high water cut. In this paper, a quantitative description method of high water consumption layer is formed, and the key technology of flow field adjustment is studied. Tuo 11 south block on the longitudinal rhythmite note, flat surface turn streamline basins, the unit of nissan 355 tons of liquid drop, nissan increased by 17.7 tons of oil, tons of oil costs fell 142 yuan, is expected to extend the economic life period of 5.4 years. The technology of deep blocking in the high water-cut stage of the whole oilfield. Form deep displacement technology step by step, with implementation of extreme high strength resides deep sealing channeling, for strongly watered-out zone "mobility + phase permeability" double regulation, the weak water drive belt to improve the water displacement ratio, contain invalid water injection cycle. ...

Wellhead and Christmas tree equipment is an important equipment of oil and gas drilling, the casing head, tubing head, oil (gas) tree of three parts, used to connect the casing string and tubing string, and the sealing between the layers of casing and tubing annulus, and can control the production wellhead pressure and adjust the oil (gas) wellhead flow, also can be used in acid fracturing, injection, testing and other special operations. Product specification The design conforms to the requirements of API SPEC6A specification. Rated working pressure: 2000-2000 psi. Rated temperature: K, L, P, R, S, T, U and V. Product material level: AA, BB, CC, DD, EE, FF. Product specification level: psl1-psl4. Performance requirements: PR1 and PR2. Applicable media: oil, natural gas, mud, etc. 井口装置及采油树设备是油气开采的重要设备，由套管头、油管头、采油（气）树三部分组成，用来连接套管柱、油管柱，并密封各层套管之间及与油管之间的环形空间，并可控制生产井口的压力和调节油（气）井口流量，也可用于酸化压裂、注水、测试等特殊作业。     产品技术规范     设计符合API SPEC6A规范的要求 ...

螺纹（心轴）式套管悬持器   casing hangers, threaded(mandrel)   在套管头内用套管上的外螺纹或内螺纹连接心轴以悬挂管柱的机构。  In the casing head, the external or internal threads connected to the spindle are connected to the mechanism of the hanging string. 套管县挂器（卡瓦） casing hangers, (slips)   在套管头内用楔形器件夹持套管，以悬挂套管柱的装置。 In the casing head, the sleeve is fitted with a wedge device to hang the casing string. 套管头壳体 casing head housing 连接表层套管的最上端，用于悬挂和密封套管柱的装置。 A device that connects the top end of the surface casing for suspension and sealing of the casing string. 套管头四通 casing head spool 连接在套管头上，用于悬挂和密封其它套管柱的装置。 A device attached to a casing head for suspension and sealing of other casing columns. 节流阀 chock ( choke manifold for sale ) 限制和调节流体流量的阀  A valve that restricts and regulates fluid flow. 采油树 Christmas tree, or xmas tree, oilfield christmas tree 装于油管头最上部法兰上的阀门和附件的组合装置，用于控制井的产量。 A combination of valves and accessories installed on the top fl...

First, open wells (from the injection well): Make sure that the production system is completed and that the flow is smooth enough to accept fluids after well opening. All the valves on the Christmas tree oil oilfield are in the correct switch state and can control the nozzle (adjustable nozzle). Check the wellhead hydraulic and safety equipment status. Second, shut the well (since the injection well) Third, in some downhole operations, the operating procedure of the Christmas tree valve is as follows: Close the well (nozzle, wing valve, purge valve, ground relief valve and main valve) before entering the downhole tool. Open the oil tree cap, install the high riser, the blowout preventer, and then test the pressure by the riser. Open the safety valve on the ground, with a fused screw cap on the safety valve to lock the ground safety valve. In the open position, test the reliability of the locking screw cap.   Lock down the hydraulic control circuit of tubing s...