Shengli Oilfield R&T Group

With 13 years of experience, Huawei has designed intelligent chips, hardware platforms, and operating systems for its all-flash arrays, and has innovatively used FlashLink technology to fully utilize the capabilities of all-flash arrays. Three intelligent chips implement end-to-end acceleration for transmission, storage, and management. Specifically, the multi-protocol interface chip accelerates data transmission, the SSD controller chip accelerates data access, and intelligent management chip speeds up fault management. At the hardware layer, the latest-generation Purley CPU, along with dual-uplink acceleration are used to provide a stable chassis for all-flash arrays. At the operating system layer, a unique disk-controller collaboration algorithm is developed based on the all-flash array features. This algorithm enables SSDs and storage controllers to work together in order to make the most of all-flash systems. In March 2018, Huawei's next-generation high-end all-...

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...