Shengli Oilfield R&T Group

13-3/8 "casing head installation 1. 17-1/2 "drill bit drilling into the design well, pulling out the drilling tool, and then entering 13-3/8" surface casing to predetermined position, cementing. 2. Cut the 20 "catheter, then lift the upper portion of the catheter, with a height difference of 510mm from the 20" catheter, and the line with a rough cut of 13-3/8 ". 3. Remove the broken casing. 4. After measuring the height of the catheter, it should be cut with the height difference of 505mm from the catheter, and then cut 13-3/8 ". 5. Check the original horizontal condition of 13-3/8 with the horizontal ruler, if not, cut the higher part to the level. 6. Use gas cutting method to cut out the - end of the 3/8 "casing preliminary groove, groove in the wheel again into a 10 * 30 °, and asking for groove edges and a smooth feel. 7. The sealing parts of the surface outside casing string and with emery cloth "BT" seal ring wil...

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...

The tubing head is a device or nipple with flanges at both ends. Before perforating, install it on top of the top casing head. To support the tubing, and seal the annulus space between the tubing and the production casing. It also provides an entrance to the casing and tubing ring space through the side outlet. all types of tubing head Function of tubing head. Suspension well tubing string. The annular space between the sealing tubing and the casing. Provide a transition connection for the casing head and the tree. The two sides of the tubing head can be used for water injection and well washing. The structure of the tubing head. The tubing head consists of tubing head, tubing hanger, sealing device, top wire, gate valve, pressure gauge and flange. The top of the tubing is connected to the tree by a flanged flanged flange. The form of the connection is flanged and clamped. 1). Tubing hanger The tubing hanger is a device that sits in the cone...

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...

The maintenance of the wellhead xmas tree . The maintenance and maintenance of the tree is: keep the equipment clean, no oil, no oil, no rust, no pine. Moving, intact parts and parts switch are flexible and easy to use. To domestic CY250 tree as an example, the parts are: cross, left and right sides casing pipe gate, tubing head, tubing spool, total gate, about production valve, test gate or paraffin gate (blowout preventer), tubing hanging roof of silk, clamp, steel ring, and other accessories. 1. The failure and maintenance of gate type 250 gate are easy to occur. (1) replace gate thrust bearing and copper sleeve. Open the gate, remove the handwheel pressure cap, remove the handwheel and handwheel key, remove the bearing gland, remove the copper sleeve from the screw thread, remove the old bearing, and replace the new bearing with the butter. Put the copper suit on the screw, the screw thread into the gate big gland, install the bearing gland, hold the handwheel and the han...

As one of the biggest wellhead equipment manufacturers, Shengli oilfield and R&T group offers high quality casing head for sale. 1. Structure of wellhead casing head . The casing head consists of  casing head spool, casing hanger, top wire assembly, flange type parallel gate valve, connecting piece, pressure display mechanism, etc. 2. Rubber seal working principle. Casing head seal consists of casing head ontology, BT type rubber sealing ring, casing hanger, dovetail rubber sealing ring, the top silk v-shaped sealing ring, sealing ring gasket, casing hanger hanging in casing head on the steps of ontology, as a result of the casing hanging heavy, metal to metal contact is passive seal rigidity, hanger and the casing pipe sealing for thread sealing. Casing head spool has with the casing (or casing diameter) hanger diameter matching BT seal and corresponding greasing, pressure hole, must be from greasing valve sealing grease injection of high pressure, can make BT s...

1. According to the number of casing layers. The number of casing layers can be divided into: single-stage casing head, double-stage casing head and three-stage casing head ; The single-stage casing head is usually used in low-pressure shallow stratum production well; The double-stage casing head is suitable for the area with more obvious formation pressure and more usage. The three-stage casing head is usually used in high pressure deep well or exploration well; SINGLE STAGE CASING HEAD DOUBLE STAGE CASING HEAD THREE STAGES CASING HEAD 2. According to the structure of the casing hanger. The structure type of the casing hanger can be divided into the slip casing head, the core shaft type (threaded) casing head, the integral type (welding) sleeve head; 3. Interontological connection. According to the connection mode of the body, it can be divided into flanged casing head, caliper casing head, and independent thread type (the casing head with thread connecti...

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. ...

General inforamtion: The wellhead device is a production equipment used for suspension, support, control and adjustment of oil christmas tree , tubing head, casing head and related accessories. As an important equipment for oil and gas production, its performance is related to the safety and efficiency of oil and gas well production. All about Casing head: The casing head is an important connector between the casing and the wellhead. The lower end is connected to the surface casing through the thread, and the upper end is connected to the wellhead device or blowout preventer through a flange or a clamp. The general casing head The characteristics of the casing head . The casing connection can be connected either by thread or slip, which is quick and convenient. The casing is made of rigid and rubber compound seal structure, and metal seal can be used to increase the sealing performance of the product. The design is equipped with the anti-wear sleeve and the test pres...

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...