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...

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...

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 ...

The casing head is generally made of 35 or 42 chromium-molybdenum alloy structural steel. Casing hanger is also arranged in the casing head to hang the casing string of the corresponding specification and seal the annular space gap, and to install the blowout preventer group above. After well completion, the casing head is fitted with an oil Christmas tree. Casing head  spool and assembly  production, generally has the following process: 1. Cast billet, cast material into semi-finished products 2. Coarse cutting, make initial machining of the semi-finished products. 3. Fine machining, use lathe to process the rough-cut piece to the designed precision. 4. Boring diameter, with boring machine to bore out the designed inside diameter. 5. Drilling hole, using drilling machine, drilling out the outer connecting bolt. 6. Heat treatment the workpiece. 7. Inspection the casing head with testing of geometric dimensions, hardness, roughness and internal and external defects.  C...

According to the function of the wellhead equipment, they can be divided into oil extraction wellhead, gas extraction wellhead, fracturing wellhead and water injection wellhead . With the high quality products and service, our wellhead equipment have been used in more than twenty countries and regions, such as America, Canada, Mexico, Germany, Australia, India, Indonesia, Saudi Arabia, Colombia, Kuwait, Russia, Kazakhstan, and so on.   Specification of our Wellhead Equipment  We have become the audited supplier of CNPC and Sinopec. We have obtained the right to use API monogram for petroleum equipment and past the international quality management system certifications, ISO 9001, ISO 14001, GB/T28001, HSE and so on. We use the high quality products and service to meet the different needs of customers all over the world.  Items of Wellhead Equipment  Wellhead equipment, consisting of casing head, tubing head, casing hanger and Christmas tree, mainly are ...